1 dnl === configure.ac --------------------------------------------------------===
2 dnl The LLVM Compiler Infrastructure
4 dnl This file is distributed under the University of Illinois Open Source
5 dnl License. See LICENSE.TXT for details.
7 dnl===-----------------------------------------------------------------------===
8 dnl This is the LLVM configuration script. It is processed by the autoconf
9 dnl program to produce a script named configure. This script contains the
10 dnl configuration checks that LLVM needs in order to support multiple platforms.
11 dnl This file is composed of 10 sections per the recommended organization of
12 dnl autoconf input defined in the autoconf documentation. As this file evolves,
13 dnl please keep the various types of checks within their sections. The sections
16 dnl SECTION 1: Initialization & Setup
17 dnl SECTION 2: Architecture, target, and host checks
18 dnl SECTION 3: Command line arguments for the configure script.
19 dnl SECTION 4: Check for programs we need and that they are the right version
20 dnl SECTION 5: Check for libraries
21 dnl SECTION 6: Check for header files
22 dnl SECTION 7: Check for types and structures
23 dnl SECTION 8: Check for specific functions needed
24 dnl SECTION 9: Additional checks, variables, etc.
25 dnl SECTION 10: Specify the output files and generate it
27 dnl===-----------------------------------------------------------------------===
29 dnl=== SECTION 1: Initialization & Setup
31 dnl===-----------------------------------------------------------------------===
32 dnl Initialize autoconf and define the package name, version number and
33 dnl address for reporting bugs.
35 AC_INIT([LLVM],[3.8.0svn],[http://llvm.org/bugs/])
40 LLVM_VERSION_SUFFIX=svn
42 AC_DEFINE_UNQUOTED([LLVM_VERSION_MAJOR], $LLVM_VERSION_MAJOR, [Major version of the LLVM API])
43 AC_DEFINE_UNQUOTED([LLVM_VERSION_MINOR], $LLVM_VERSION_MINOR, [Minor version of the LLVM API])
44 AC_DEFINE_UNQUOTED([LLVM_VERSION_PATCH], $LLVM_VERSION_PATCH, [Patch version of the LLVM API])
45 AC_DEFINE_UNQUOTED([LLVM_VERSION_STRING], "$PACKAGE_VERSION", [LLVM version string])
47 AC_SUBST([LLVM_VERSION_MAJOR])
48 AC_SUBST([LLVM_VERSION_MINOR])
49 AC_SUBST([LLVM_VERSION_PATCH])
50 AC_SUBST([LLVM_VERSION_SUFFIX])
52 dnl Provide a copyright substitution and ensure the copyright notice is included
53 dnl in the output of --version option of the generated configure script.
54 AC_SUBST(LLVM_COPYRIGHT,["Copyright (c) 2003-2015 University of Illinois at Urbana-Champaign."])
55 AC_COPYRIGHT([Copyright (c) 2003-2015 University of Illinois at Urbana-Champaign.])
57 dnl Indicate that we require autoconf 2.60 or later.
60 dnl Verify that the source directory is valid. This makes sure that we are
61 dnl configuring LLVM and not some other package (it validates --srcdir argument)
62 AC_CONFIG_SRCDIR([lib/IR/Module.cpp])
64 dnl Place all of the extra autoconf files into the config subdirectory. Tell
65 dnl various tools where the m4 autoconf macros are.
66 AC_CONFIG_AUX_DIR([autoconf])
68 dnl Quit if the source directory has already been configured.
69 dnl NOTE: This relies upon undocumented autoconf behavior.
70 if test ${srcdir} != "." ; then
71 if test -f ${srcdir}/include/llvm/Config/config.h ; then
72 AC_MSG_ERROR([Already configured in ${srcdir}])
76 dnl Quit if it is an in-source build
77 if test ${srcdir} = "." ; then
78 AC_MSG_ERROR([In-source builds are not allowed. Please configure from a separate build directory!])
81 dnl Default to empty (i.e. assigning the null string to) CFLAGS and CXXFLAGS,
82 dnl instead of the autoconf default (for example, '-g -O2' for CC=gcc).
86 dnl We need to check for the compiler up here to avoid anything else
87 dnl starting with a different one.
89 AC_PROG_CXX(clang++ g++)
92 dnl If CXX is Clang, check that it can find and parse C++ standard library
94 if test "$CXX" = "clang++" ; then
95 AC_MSG_CHECKING([whether clang works])
97 dnl Note that space between 'include' and '(' is required. There's a broken
98 dnl regex in aclocal that otherwise will think that we call m4's include
100 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <limits>
101 #if __has_include (<cxxabi.h>)
104 #if __has_include (<unwind.h>)
113 AC_MSG_ERROR([Selected compiler could not find or parse C++ standard library headers. Rerun with CC=c-compiler CXX=c++-compiler LLVM_SRC_DIR/configure ...])
118 dnl Set up variables that track whether the host compiler is GCC or Clang where
119 dnl we can effectively sanity check them. We don't try to sanity check all the
120 dnl other possible compilers.
121 AC_MSG_CHECKING([whether GCC or Clang is our host compiler])
123 llvm_cv_cxx_compiler=unknown
124 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[#if ! __clang__
128 llvm_cv_cxx_compiler=clang,
129 [AC_COMPILE_IFELSE([AC_LANG_SOURCE([[#if ! __GNUC__
133 llvm_cv_cxx_compiler=gcc, [])])
135 AC_MSG_RESULT([${llvm_cv_cxx_compiler}])
136 AC_SUBST(CXX_COMPILER,$llvm_cv_cxx_compiler)
138 dnl Configure all of the projects present in our source tree. While we could
139 dnl just AC_CONFIG_SUBDIRS on the set of directories in projects that have a
140 dnl configure script, that usage of the AC_CONFIG_SUBDIRS macro is deprecated.
141 dnl Instead we match on the known projects.
144 dnl One tricky part of doing this is that some projects depend upon other
145 dnl projects. For example, several projects rely upon the LLVM test suite.
146 dnl We want to configure those projects first so that their object trees are
147 dnl created before running the configure scripts of projects that depend upon
151 dnl Several projects use the LLVM test suite, so configure it next.
152 if test -d ${srcdir}/projects/test-suite ; then
153 AC_CONFIG_SUBDIRS([projects/test-suite])
156 dnl llvm-test is the old name of the test-suite, kept here for backwards
158 if test -d ${srcdir}/projects/llvm-test ; then
159 AC_CONFIG_SUBDIRS([projects/llvm-test])
162 dnl Some projects use poolalloc; configure that next
163 if test -d ${srcdir}/projects/poolalloc ; then
164 AC_CONFIG_SUBDIRS([projects/poolalloc])
167 if test -d ${srcdir}/projects/llvm-poolalloc ; then
168 AC_CONFIG_SUBDIRS([projects/llvm-poolalloc])
171 dnl Check for all other projects
172 for i in `ls ${srcdir}/projects`
174 if test -d ${srcdir}/projects/${i} ; then
176 safecode) AC_CONFIG_SUBDIRS([projects/safecode]) ;;
183 AC_MSG_WARN([Unknown project (${i}) won't be configured automatically])
189 dnl Disable the build of polly, even if it is checked out into tools/polly.
191 AS_HELP_STRING([--enable-polly],
192 [Use polly if available (default is YES)]),,
195 yes) AC_SUBST(ENABLE_POLLY,[1]) ;;
196 no) AC_SUBST(ENABLE_POLLY,[0]) ;;
197 default) AC_SUBST(ENABLE_POLLY,[1]) ;;
198 *) AC_MSG_ERROR([Invalid setting for --enable-polly. Use "yes" or "no"]) ;;
202 dnl Check if polly is checked out into tools/polly and configure it if
204 if (test -d ${srcdir}/tools/polly) && (test $ENABLE_POLLY -eq 1) ; then
205 AC_SUBST(LLVM_HAS_POLLY,1)
206 AC_CONFIG_SUBDIRS([tools/polly])
209 dnl===-----------------------------------------------------------------------===
211 dnl=== SECTION 2: Architecture, target, and host checks
213 dnl===-----------------------------------------------------------------------===
215 dnl Check the target for which we're compiling and the host that will do the
216 dnl compilations. This will tell us which LLVM compiler will be used for
217 dnl compiling SSA into object code. This needs to be done early because
218 dnl following tests depend on it.
221 dnl Determine the platform type and cache its value. This helps us configure
222 dnl the System library to the correct build platform.
223 AC_CACHE_CHECK([type of operating system we're going to host on],
227 llvm_cv_link_all_option="-Wl,--whole-archive"
228 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
229 llvm_cv_os_type="AIX"
230 llvm_cv_platform_type="Unix" ;;
232 llvm_cv_link_all_option="-Wl,--whole-archive"
233 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
234 llvm_cv_os_type="IRIX"
235 llvm_cv_platform_type="Unix" ;;
237 llvm_cv_link_all_option="-Wl,--whole-archive"
238 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
239 llvm_cv_os_type="Cygwin"
240 llvm_cv_platform_type="Unix" ;;
242 llvm_cv_link_all_option="-Wl,-all_load"
243 llvm_cv_no_link_all_option="-Wl,-noall_load"
244 llvm_cv_os_type="Darwin"
245 llvm_cv_platform_type="Unix" ;;
247 llvm_cv_link_all_option="-Wl,-all_load"
248 llvm_cv_no_link_all_option="-Wl,-noall_load"
249 llvm_cv_os_type="Minix"
250 llvm_cv_platform_type="Unix" ;;
252 llvm_cv_link_all_option="-Wl,--whole-archive"
253 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
254 llvm_cv_os_type="FreeBSD"
255 llvm_cv_platform_type="Unix" ;;
257 llvm_cv_link_all_option="-Wl,--whole-archive"
258 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
259 llvm_cv_os_type="GNU/kFreeBSD"
260 llvm_cv_platform_type="Unix" ;;
262 llvm_cv_link_all_option="-Wl,--whole-archive"
263 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
264 llvm_cv_os_type="OpenBSD"
265 llvm_cv_platform_type="Unix" ;;
267 llvm_cv_link_all_option="-Wl,--whole-archive"
268 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
269 llvm_cv_os_type="NetBSD"
270 llvm_cv_platform_type="Unix" ;;
272 llvm_cv_link_all_option="-Wl,--whole-archive"
273 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
274 llvm_cv_os_type="DragonFly"
275 llvm_cv_platform_type="Unix" ;;
277 llvm_cv_link_all_option="-Wl,--whole-archive"
278 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
279 llvm_cv_os_type="Bitrig"
280 llvm_cv_platform_type="Unix" ;;
282 llvm_cv_link_all_option="-Wl,--whole-archive"
283 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
284 llvm_cv_os_type="HP-UX"
285 llvm_cv_platform_type="Unix" ;;
287 llvm_cv_link_all_option="-Wl,--whole-archive"
288 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
289 llvm_cv_os_type="Interix"
290 llvm_cv_platform_type="Unix" ;;
292 llvm_cv_link_all_option="-Wl,--whole-archive"
293 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
294 llvm_cv_os_type="Linux"
295 llvm_cv_platform_type="Unix" ;;
297 llvm_cv_link_all_option="-Wl,--whole-archive"
298 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
299 llvm_cv_os_type="GNU"
300 llvm_cv_platform_type="Unix" ;;
302 llvm_cv_link_all_option="-Wl,-z,allextract"
303 llvm_cv_no_link_all_option="-Wl,-z,defaultextract"
304 llvm_cv_os_type="SunOS"
305 llvm_cv_platform_type="Unix" ;;
307 llvm_cv_link_all_option="-Wl,--whole-archive"
308 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
309 llvm_cv_os_type="Win32"
310 llvm_cv_platform_type="Win32" ;;
312 llvm_cv_link_all_option="-Wl,--whole-archive"
313 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
314 llvm_cv_os_type="MingW"
315 llvm_cv_platform_type="Win32" ;;
317 llvm_cv_link_all_option="-Wl,--whole-archive"
318 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
319 llvm_cv_os_type="Haiku"
320 llvm_cv_platform_type="Unix" ;;
322 llvm_cv_link_all_option="-Wl,--whole-archive"
323 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
324 llvm_cv_os_type="Freestanding"
325 llvm_cv_platform_type="Unix" ;;
327 llvm_cv_link_all_option="-Wl,--whole-archive"
328 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
329 llvm_cv_os_type="Freestanding"
330 llvm_cv_platform_type="Unix" ;;
332 llvm_cv_link_all_option=""
333 llvm_cv_no_link_all_option=""
334 llvm_cv_os_type="Unknown"
335 llvm_cv_platform_type="Unknown" ;;
338 AC_CACHE_CHECK([type of operating system we're going to target],
339 [llvm_cv_target_os_type],
342 llvm_cv_target_os_type="AIX" ;;
344 llvm_cv_target_os_type="IRIX" ;;
346 llvm_cv_target_os_type="Cygwin" ;;
348 llvm_cv_target_os_type="Darwin" ;;
350 llvm_cv_target_os_type="Minix" ;;
352 llvm_cv_target_os_type="FreeBSD" ;;
354 llvm_cv_target_os_type="GNU/kFreeBSD" ;;
356 llvm_cv_target_os_type="OpenBSD" ;;
358 llvm_cv_target_os_type="NetBSD" ;;
360 llvm_cv_target_os_type="DragonFly" ;;
362 llvm_cv_target_os_type="Bitrig" ;;
364 llvm_cv_target_os_type="HP-UX" ;;
366 llvm_cv_target_os_type="Interix" ;;
368 llvm_cv_target_os_type="Linux" ;;
370 llvm_cv_target_os_type="GNU" ;;
372 llvm_cv_target_os_type="SunOS" ;;
374 llvm_cv_target_os_type="Win32" ;;
376 llvm_cv_target_os_type="MingW" ;;
378 llvm_cv_target_os_type="Haiku" ;;
380 llvm_cv_target_os_type="RTEMS" ;;
382 llvm_cv_target_os_type="NativeClient" ;;
384 llvm_cv_target_os_type="Freestanding" ;;
386 llvm_cv_target_os_type="PS4" ;;
388 llvm_cv_target_os_type="Unknown" ;;
391 dnl Make sure we aren't attempting to configure for an unknown system
392 if test "$llvm_cv_os_type" = "Unknown" ; then
393 AC_MSG_ERROR([Operating system is unknown, configure can't continue])
396 dnl Set the "OS" Makefile variable based on the platform type so the
397 dnl makefile can configure itself to specific build hosts
398 AC_SUBST(OS,$llvm_cv_os_type)
399 AC_SUBST(HOST_OS,$llvm_cv_os_type)
400 AC_SUBST(TARGET_OS,$llvm_cv_target_os_type)
402 dnl Set the LINKALL and NOLINKALL Makefile variables based on the platform
403 AC_SUBST(LINKALL,$llvm_cv_link_all_option)
404 AC_SUBST(NOLINKALL,$llvm_cv_no_link_all_option)
406 dnl Set the "LLVM_ON_*" variables based on llvm_cv_platform_type
407 dnl This is used by lib/Support to determine the basic kind of implementation
409 case $llvm_cv_platform_type in
411 AC_DEFINE([LLVM_ON_UNIX],[1],[Define if this is Unixish platform])
412 AC_SUBST(LLVM_ON_UNIX,[1])
413 AC_SUBST(LLVM_ON_WIN32,[0])
416 AC_DEFINE([LLVM_ON_WIN32],[1],[Define if this is Win32ish platform])
417 AC_SUBST(LLVM_ON_UNIX,[0])
418 AC_SUBST(LLVM_ON_WIN32,[1])
422 dnl Determine what our target architecture is and configure accordingly.
423 dnl This will allow Makefiles to make a distinction between the hardware and
425 AC_CACHE_CHECK([target architecture],[llvm_cv_target_arch],
427 i?86-*) llvm_cv_target_arch="x86" ;;
428 amd64-* | x86_64-*) llvm_cv_target_arch="x86_64" ;;
429 sparc*-*) llvm_cv_target_arch="Sparc" ;;
430 powerpc*-*) llvm_cv_target_arch="PowerPC" ;;
431 arm64*-*) llvm_cv_target_arch="AArch64" ;;
432 arm*-*) llvm_cv_target_arch="ARM" ;;
433 aarch64*-*) llvm_cv_target_arch="AArch64" ;;
434 avr-*) llvm_cv_target_arch="AVR" ;;
435 mips-* | mips64-*) llvm_cv_target_arch="Mips" ;;
436 mipsel-* | mips64el-*) llvm_cv_target_arch="Mips" ;;
437 xcore-*) llvm_cv_target_arch="XCore" ;;
438 msp430-*) llvm_cv_target_arch="MSP430" ;;
439 hexagon-*) llvm_cv_target_arch="Hexagon" ;;
440 nvptx-*) llvm_cv_target_arch="NVPTX" ;;
441 s390x-*) llvm_cv_target_arch="SystemZ" ;;
442 wasm*-*) llvm_cv_target_arch="WebAssembly" ;;
443 *) llvm_cv_target_arch="Unknown" ;;
446 if test "$llvm_cv_target_arch" = "Unknown" ; then
447 AC_MSG_WARN([Configuring LLVM for an unknown target archicture])
450 dnl Determine the LLVM native architecture for the target
451 case "$llvm_cv_target_arch" in
452 x86) LLVM_NATIVE_ARCH="X86" ;;
453 x86_64) LLVM_NATIVE_ARCH="X86" ;;
454 *) LLVM_NATIVE_ARCH="$llvm_cv_target_arch" ;;
457 dnl Define a substitution, ARCH, for the target architecture
458 AC_SUBST(ARCH,$llvm_cv_target_arch)
459 AC_SUBST(LLVM_NATIVE_ARCH,$LLVM_NATIVE_ARCH)
461 dnl Determine what our host architecture.
462 dnl This will allow MCJIT regress tests runs only for supported
465 i?86-*) host_arch="x86" ;;
466 amd64-* | x86_64-*) host_arch="x86_64" ;;
467 sparc*-*) host_arch="Sparc" ;;
468 powerpc*-*) host_arch="PowerPC" ;;
469 arm64*-*) host_arch="AArch64" ;;
470 arm*-*) host_arch="ARM" ;;
471 aarch64*-*) host_arch="AArch64" ;;
472 avr-*) host_arch="AVR" ;;
473 mips-* | mips64-*) host_arch="Mips" ;;
474 mipsel-* | mips64el-*) host_arch="Mips" ;;
475 xcore-*) host_arch="XCore" ;;
476 msp430-*) host_arch="MSP430" ;;
477 hexagon-*) host_arch="Hexagon" ;;
478 s390x-*) host_arch="SystemZ" ;;
479 wasm*-*) host_arch="WebAssembly" ;;
480 *) host_arch="Unknown" ;;
483 if test "$host_arch" = "Unknown" ; then
484 AC_MSG_WARN([Configuring LLVM for an unknown host archicture])
487 AC_SUBST(HOST_ARCH,$host_arch)
489 dnl Check for build platform executable suffix if we're cross-compiling
490 if test "$cross_compiling" = yes; then
491 AC_SUBST(LLVM_CROSS_COMPILING, [1])
493 ac_build_prefix=${build_alias}-
494 AC_CHECK_PROG(BUILD_CXX, ${ac_build_prefix}g++, ${ac_build_prefix}g++)
495 if test -z "$BUILD_CXX"; then
496 AC_CHECK_PROG(BUILD_CXX, g++, g++)
497 if test -z "$BUILD_CXX"; then
498 AC_CHECK_PROG(BUILD_CXX, c++, c++, , , /usr/ucb/c++)
502 AC_SUBST(LLVM_CROSS_COMPILING, [0])
505 dnl Check to see if there's a .svn or .git directory indicating that this
506 dnl build is being done from a checkout. This sets up several defaults for
507 dnl the command line switches. When we build with a checkout directory,
508 dnl we get a debug with assertions turned on. Without, we assume a source
509 dnl release and we get an optimized build without assertions.
510 dnl See --enable-optimized and --enable-assertions below
511 if test -d ".svn" -o -d "${srcdir}/.svn" -o -d ".git" -o -d "${srcdir}/.git"; then
514 AC_SUBST(CVSBUILD,[[CVSBUILD=1]])
520 dnl===-----------------------------------------------------------------------===
522 dnl=== SECTION 3: Command line arguments for the configure script.
524 dnl===-----------------------------------------------------------------------===
526 dnl --enable-libcpp : check whether or not to use libc++ on the command line
527 AC_ARG_ENABLE(libcpp,
528 AS_HELP_STRING([--enable-libcpp],
529 [Use libc++ if available (default is NO)]),,
532 yes) AC_SUBST(ENABLE_LIBCPP,[1]) ;;
533 no) AC_SUBST(ENABLE_LIBCPP,[0]) ;;
534 default) AC_SUBST(ENABLE_LIBCPP,[0]);;
535 *) AC_MSG_ERROR([Invalid setting for --enable-libcpp. Use "yes" or "no"]) ;;
538 dnl Check both GCC and Clang for sufficiently modern versions. These checks can
539 dnl be bypassed by passing a flag if necessary on a platform. We have to do
540 dnl these checks here so that we have the configuration of the standard C++
541 dnl library finished.
542 AC_ARG_ENABLE(compiler-version-checks,
543 AS_HELP_STRING([--enable-compiler-version-checks],
544 [Check the version of the host compiler (default is YES)]),,
551 case "$llvm_cv_cxx_compiler" in
553 AC_MSG_CHECKING([whether Clang is new enough])
554 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
555 #if __clang_major__ < 3 || (__clang_major__ == 3 && __clang_minor__ < 1)
556 #error This version of Clang is too old to build LLVM
559 [AC_MSG_RESULT([yes])],
562 The selected Clang compiler is not new enough to build LLVM. Please upgrade to
563 Clang 3.1. You may pass --disable-compiler-version-checks to configure to
564 bypass these sanity checks.])])
566 dnl Note that libstdc++4.6 is known broken for C++11 builds. The errors
567 dnl are sometimes deeply confusing though. Here we test for an obvious
568 dnl incomplete feature in 4.6's standard library that was completed in
569 dnl 4.7's. We also have to disable this test if 'ENABLE_LIBCPP' is set
570 dnl because the enable flags don't actually fix CXXFLAGS, they rely on
571 dnl that happening in the Makefile.
572 if test "$ENABLE_LIBCPP" -eq 0 ; then
573 AC_MSG_CHECKING([whether Clang will select a modern C++ standard library])
574 llvm_cv_old_cxxflags="$CXXFLAGS"
575 CXXFLAGS="$CXXFLAGS -std=c++0x"
576 AC_LINK_IFELSE([AC_LANG_SOURCE([[
578 std::atomic<float> x(0.0f);
579 int main() { return (float)x; }
581 [AC_MSG_RESULT([yes])],
584 We detected a missing feature in the standard C++ library that was known to be
585 missing in libstdc++4.6 and implemented in libstdc++4.7. There are numerous
586 C++11 problems with 4.6's library, and we don't support GCCs or libstdc++ older
587 than 4.7. You will need to update your system and ensure Clang uses the newer
590 If this error is incorrect or you need to force things to work, you may pass
591 '--disable-compiler-version-checks' to configure to bypass this test.])])
592 CXXFLAGS="$llvm_cv_old_cxxflags"
596 AC_MSG_CHECKING([whether GCC is new enough])
597 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
598 #if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 7)
599 #error This version of GCC is too old to build LLVM
602 [AC_MSG_RESULT([yes])],
605 The selected GCC C++ compiler is not new enough to build LLVM. Please upgrade
606 to GCC 4.7. You may pass --disable-compiler-version-checks to configure to
607 bypass these sanity checks.])])
615 AC_MSG_ERROR([Invalid setting for --enable-compiler-version-checks. Use "yes" or "no"])
619 dnl --enable-cxx1y : check whether or not to use -std=c++1y on the command line
621 AS_HELP_STRING([--enable-cxx1y],
622 [Use c++1y if available (default is NO)]),,
625 yes) AC_SUBST(ENABLE_CXX1Y,[1]) ;;
626 no) AC_SUBST(ENABLE_CXX1Y,[0]) ;;
627 default) AC_SUBST(ENABLE_CXX1Y,[0]);;
628 *) AC_MSG_ERROR([Invalid setting for --enable-cxx1y. Use "yes" or "no"]) ;;
631 dnl --enable-split-dwarf : check whether or not to use -gsplit-dwarf on the command
633 AC_ARG_ENABLE(split-dwarf,
634 AS_HELP_STRING([--enable-split-dwarf],
635 [Use split-dwarf if available (default is NO)]),,
638 yes) AC_SUBST(ENABLE_SPLIT_DWARF,[1]) ;;
639 no) AC_SUBST(ENABLE_SPLIT_DWARF,[0]) ;;
640 default) AC_SUBST(ENABLE_SPLIT_DWARF,[0]);;
641 *) AC_MSG_ERROR([Invalid setting for --enable-split-dwarf. Use "yes" or "no"]) ;;
644 dnl --enable-clang-arcmt: check whether to enable clang arcmt
646 AC_ARG_ENABLE(clang-arcmt,
647 AS_HELP_STRING([--enable-clang-arcmt],
648 [Enable building of clang ARCMT (default is YES)]),
649 clang_arcmt="$enableval",
652 yes) AC_SUBST(ENABLE_CLANG_ARCMT,[1]) ;;
653 no) AC_SUBST(ENABLE_CLANG_ARCMT,[0]) ;;
654 default) AC_SUBST(ENABLE_CLANG_ARCMT,[1]);;
655 *) AC_MSG_ERROR([Invalid setting for --enable-clang-arcmt. Use "yes" or "no"]) ;;
658 dnl --enable-clang-plugin-support: check whether to enable plugins in clang
659 clang_plugin_support="yes"
660 AC_ARG_ENABLE(clang-plugin-support,
661 AS_HELP_STRING([--enable-clang-plugin-support],
662 [Enable plugin support in clang (default is YES)]),
663 clang_plugin_support="$enableval",
666 yes) AC_SUBST(CLANG_PLUGIN_SUPPORT,[1]) ;;
667 no) AC_SUBST(CLANG_PLUGIN_SUPPORT,[0]) ;;
668 default) AC_SUBST(CLANG_PLUGIN_SUPPORT,[1]);;
669 *) AC_MSG_ERROR([Invalid setting for --enable-clang-plugin-support. Use "yes" or "no"]) ;;
672 dnl --enable-clang-static-analyzer: check whether to enable static-analyzer
673 clang_static_analyzer="yes"
674 AC_ARG_ENABLE(clang-static-analyzer,
675 AS_HELP_STRING([--enable-clang-static-analyzer],
676 [Enable building of clang Static Analyzer (default is YES)]),
677 clang_static_analyzer="$enableval",
680 yes) AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[1]) ;;
682 if test ${clang_arcmt} != "no" ; then
683 AC_MSG_ERROR([Cannot enable clang ARC Migration Tool while disabling static analyzer.])
685 AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[0])
687 default) AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[1]);;
688 *) AC_MSG_ERROR([Invalid setting for --enable-clang-static-analyzer. Use "yes" or "no"]) ;;
691 dnl --enable-optimized : check whether they want to do an optimized build:
692 AC_ARG_ENABLE(optimized, AS_HELP_STRING(
693 --enable-optimized,[Compile with optimizations enabled (default is NO)]),,enableval=$optimize)
694 if test ${enableval} = "no" ; then
695 AC_SUBST(ENABLE_OPTIMIZED,[[]])
697 AC_SUBST(ENABLE_OPTIMIZED,[[ENABLE_OPTIMIZED=1]])
700 dnl --enable-profiling : check whether they want to do a profile build:
701 AC_ARG_ENABLE(profiling, AS_HELP_STRING(
702 --enable-profiling,[Compile with profiling enabled (default is NO)]),,enableval="no")
703 if test ${enableval} = "no" ; then
704 AC_SUBST(ENABLE_PROFILING,[[]])
706 AC_SUBST(ENABLE_PROFILING,[[ENABLE_PROFILING=1]])
709 dnl --enable-assertions : check whether they want to turn on assertions or not:
710 AC_ARG_ENABLE(assertions,AS_HELP_STRING(
711 --enable-assertions,[Compile with assertion checks enabled (default is YES)]),, enableval="yes")
712 if test ${enableval} = "yes" ; then
713 AC_SUBST(DISABLE_ASSERTIONS,[[]])
714 assertions_enabled="yes"
716 AC_SUBST(DISABLE_ASSERTIONS,[[DISABLE_ASSERTIONS=1]])
717 assertions_enabled="no"
720 dnl --enable-werror : check whether we want Werror on by default
721 AC_ARG_ENABLE(werror,AS_HELP_STRING(
722 --enable-werror,[Compile with -Werror enabled (default is NO)]),, enableval="no")
724 yes) AC_SUBST(ENABLE_WERROR,[1]) ;;
725 no) AC_SUBST(ENABLE_WERROR,[0]) ;;
726 default) AC_SUBST(ENABLE_WERROR,[0]);;
727 *) AC_MSG_ERROR([Invalid setting for --enable-werror. Use "yes" or "no"]) ;;
730 dnl --enable-expensive-checks : check whether they want to turn on expensive debug checks:
731 AC_ARG_ENABLE(expensive-checks,AS_HELP_STRING(
732 --enable-expensive-checks,[Compile with expensive debug checks enabled (default is NO)]),, enableval="no")
733 if test ${enableval} = "yes" ; then
734 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[ENABLE_EXPENSIVE_CHECKS=1]])
735 AC_SUBST(EXPENSIVE_CHECKS,[[yes]])
737 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[]])
738 AC_SUBST(EXPENSIVE_CHECKS,[[no]])
741 dnl --enable-abi-breaking-checks : decide whether we should compile in asserts and
742 dnl checks that make the build ABI incompatible with an llvm built without these
744 AC_ARG_ENABLE(abi-breaking-checks,AS_HELP_STRING(
745 --enable-abi-breaking-checks,[Compile with abi-breaking asserts support (default is with-asserts)]),, enableval="with-asserts")
747 with-asserts) if test ${assertions_enabled} = "yes" ; then
748 AC_DEFINE([LLVM_ENABLE_ABI_BREAKING_CHECKS],[1],[Define to enable checks that alter the LLVM C++ ABI])
749 AC_SUBST(ENABLE_ABI_BREAKING_CHECKS,[1])
751 AC_SUBST(ENABLE_ABI_BREAKING_CHECKS,[0])
754 AC_DEFINE([LLVM_ENABLE_ABI_BREAKING_CHECKS],[1],[Define to enable checks that alter the LLVM C++ ABI])
755 AC_SUBST(ENABLE_ABI_BREAKING_CHECKS,[1])
758 AC_SUBST(ENABLE_ABI_BREAKING_CHECKS,[0])
760 *) AC_MSG_ERROR([Invalid setting for --enable-abi-breaking-checks. Use "with-asserts", "yes" or "no"])
763 dnl --enable-debug-runtime : should runtime libraries have debug symbols?
764 AC_ARG_ENABLE(debug-runtime,
765 AS_HELP_STRING(--enable-debug-runtime,[Build runtime libs with debug symbols (default is NO)]),,enableval=no)
766 if test ${enableval} = "no" ; then
767 AC_SUBST(DEBUG_RUNTIME,[[]])
769 AC_SUBST(DEBUG_RUNTIME,[[DEBUG_RUNTIME=1]])
772 dnl --enable-debug-symbols : should even optimized compiler libraries
773 dnl have debug symbols?
774 AC_ARG_ENABLE(debug-symbols,
775 AS_HELP_STRING(--enable-debug-symbols,[Build compiler with debug symbols (default is NO if optimization is on and YES if it's off)]),,enableval=no)
776 if test ${enableval} = "no" ; then
777 AC_SUBST(DEBUG_SYMBOLS,[[]])
779 AC_SUBST(DEBUG_SYMBOLS,[[DEBUG_SYMBOLS=1]])
782 dnl --enable-keep-symbols : do not strip installed executables
783 AC_ARG_ENABLE(keep-symbols,
784 AS_HELP_STRING(--enable-keep-symbols,[Do not strip installed executables)]),,enableval=no)
785 if test ${enableval} = "no" ; then
786 AC_SUBST(KEEP_SYMBOLS,[[]])
788 AC_SUBST(KEEP_SYMBOLS,[[KEEP_SYMBOLS=1]])
791 dnl --enable-jit: check whether they want to enable the jit
793 AS_HELP_STRING(--enable-jit,
794 [Enable Just In Time Compiling (default is YES)]),,
796 if test ${enableval} = "no"
800 case "$llvm_cv_target_arch" in
801 x86) AC_SUBST(TARGET_HAS_JIT,1) ;;
802 Sparc) AC_SUBST(TARGET_HAS_JIT,0) ;;
803 PowerPC) AC_SUBST(TARGET_HAS_JIT,1) ;;
804 x86_64) AC_SUBST(TARGET_HAS_JIT,1) ;;
805 ARM) AC_SUBST(TARGET_HAS_JIT,1) ;;
806 AVR) AC_SUBST(TARGET_HAS_JIT,0) ;;
807 Mips) AC_SUBST(TARGET_HAS_JIT,1) ;;
808 XCore) AC_SUBST(TARGET_HAS_JIT,0) ;;
809 MSP430) AC_SUBST(TARGET_HAS_JIT,0) ;;
810 Hexagon) AC_SUBST(TARGET_HAS_JIT,0) ;;
811 NVPTX) AC_SUBST(TARGET_HAS_JIT,0) ;;
812 SystemZ) AC_SUBST(TARGET_HAS_JIT,1) ;;
813 WebAssembly) AC_SUBST(TARGET_HAS_JIT,0) ;;
814 *) AC_SUBST(TARGET_HAS_JIT,0) ;;
818 TARGETS_WITH_JIT="ARM AArch64 Mips PowerPC SystemZ X86"
819 AC_SUBST(TARGETS_WITH_JIT,$TARGETS_WITH_JIT)
821 dnl Allow enablement of building and installing docs
823 AS_HELP_STRING([--enable-docs],
824 [Build documents (default is YES)]),,
827 yes) AC_SUBST(ENABLE_DOCS,[1]) ;;
828 no) AC_SUBST(ENABLE_DOCS,[0]) ;;
829 default) AC_SUBST(ENABLE_DOCS,[1]) ;;
830 *) AC_MSG_ERROR([Invalid setting for --enable-docs. Use "yes" or "no"]) ;;
833 dnl Allow enablement of doxygen generated documentation
834 AC_ARG_ENABLE(doxygen,
835 AS_HELP_STRING([--enable-doxygen],
836 [Build doxygen documentation (default is NO)]),,
839 yes) AC_SUBST(ENABLE_DOXYGEN,[1]) ;;
840 no|default) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
841 *) AC_MSG_ERROR([Invalid setting for --enable-doxygen. Use "yes" or "no"]) ;;
844 dnl Allow enablement of doxygen search engine
845 AC_ARG_ENABLE(doxygen-search,
846 AS_HELP_STRING([--enable-doxygen-search],
847 [Enable doxygen search support (default is NO)]),,
849 ENABLE_DOXYGEN_SEARCH="$enableval"
853 *) AC_MSG_ERROR([Invalid setting for --enable-doxygen-search. Use "yes" or "no"]) ;;
856 AC_ARG_ENABLE(doxygen-external-search,
857 AS_HELP_STRING([--enable-doxygen-external-search],
858 [Enable doxygen exteranl search (default is NO)]),,
860 ENABLE_DOXYGEN_EXTERNAL_SEARCH="$enableval"
864 dnl To match with the CMake behavior, enable doxygen when
865 dnl --enable-doxygen-external-search is enabled.
866 case "$ENABLE_DOXYGEN_SEARCH" in
867 yes|default) ENABLE_DOXYGEN_SEARCH="yes" ;;
868 no) AC_MSG_ERROR([The option --enable-doxygen-external-search requires --enable-doxygen-search]) ;;
872 *) AC_MSG_ERROR([Invalid setting for --enable-doxygen-external-search. Use "yes" or "no"]) ;;
875 AC_ARG_WITH(doxygen-search-engine-url,
876 AS_HELP_STRING([--with-doxygen-search-engine-url],
877 [Specify the external search engine for doxygen]),,)
878 WITH_DOXYGEN_SEARCH_ENGINE_URL="$withval"
880 AC_ARG_WITH(doxygen-search-mappings,
881 AS_HELP_STRING([--with-doxygen-search-mappings],
882 [Specify the extra search mapping for doxygen]),,)
883 WITH_DOXYGEN_SEARCH_MAPPINGS="$withval"
885 case "$ENABLE_DOXYGEN_SEARCH" in
887 if test "$ENABLE_DOXYGEN" = "0" ; then
888 AC_MSG_ERROR([The option --enable-doxygen-search requires --enable-doxygen.])
891 AC_SUBST(enable_searchengine,[YES])
893 case "$ENABLE_DOXYGEN_EXTERNAL_SEARCH" in
895 AC_SUBST(enable_external_search,[YES])
896 AC_SUBST(enable_server_based_search,[YES])
897 AC_SUBST(searchengine_url,["$WITH_DOXYGEN_SEARCH_ENGINE_URL"])
898 AC_SUBST(extra_search_mappings,["$WITH_DOXYGEN_SEARCH_MAPPINGS"])
902 AC_SUBST(enable_external_search,[NO])
903 AC_SUBST(enable_server_based_search,[NO])
904 AC_SUBST(searchengine_url,[])
905 AC_SUBST(extra_search_mappings,[])
911 AC_SUBST(enable_searchengine,[NO])
912 AC_SUBST(searchengine_url,[])
913 AC_SUBST(enable_server_based_search,[NO])
914 AC_SUBST(enable_external_search,[NO])
915 AC_SUBST(extra_search_mappings,[])
919 AC_MSG_ERROR([Invalid setting for --enable-doxygen-search. Use "yes" or "no"])
923 dnl Allow enablement of doxygen generated Qt help files
924 AC_ARG_ENABLE(doxygen-qt-help,
925 AS_HELP_STRING([--enable-doxygen-qt-help],
926 [Build Qt help files (default is NO)]),,
930 if test "$ENABLE_DOXYGEN" = "0" ; then
931 AC_MSG_ERROR([The option --enable-doxygen-qt-help requires --enable-doxygen.])
934 AC_PATH_PROG(QHELPGENERATOR, [qhelpgenerator], [qhelpgenerator])
936 dnl Qt help file for llvm doxygen documentation
937 AC_SUBST(llvm_doxygen_generate_qhp,[YES])
938 AC_SUBST(llvm_doxygen_qch_filename,[org.llvm.qch])
939 AC_SUBST(llvm_doxygen_qhp_namespace,[org.llvm])
940 AC_SUBST(llvm_doxygen_qhelpgenerator_path,["$QHELPGENERATOR"])
941 AC_SUBST(llvm_doxygen_qhp_cust_filter_name,["$PACKAGE_STRING"])
942 AC_SUBST(llvm_doxygen_qhp_cust_filter_attrs,["$PACKAGE_NAME,$PACKAGE_VERSION"])
944 dnl Qt help file for clang doxygen documentation
945 AC_SUBST(clang_doxygen_generate_qhp,[YES])
946 AC_SUBST(clang_doxygen_qch_filename,[org.llvm.clang.qch])
947 AC_SUBST(clang_doxygen_qhp_namespace,[org.llvm.clang])
948 AC_SUBST(clang_doxygen_qhelpgenerator_path,["$QHELPGENERATOR"])
949 AC_SUBST(clang_doxygen_qhp_cust_filter_name,["Clang $PACKAGE_VERSION"])
950 AC_SUBST(clang_doxygen_qhp_cust_filter_attrs,["Clang,$PACKAGE_VERSION"])
954 AC_SUBST(llvm_doxygen_generate_qhp,[NO])
955 AC_SUBST(llvm_doxygen_qch_filename,[])
956 AC_SUBST(llvm_doxygen_qhp_namespace,[])
957 AC_SUBST(llvm_doxygen_qhelpgenerator_path,[])
958 AC_SUBST(llvm_doxygen_qhp_cust_filter_name,[])
959 AC_SUBST(llvm_doxygen_qhp_cust_filter_attrs,[])
961 AC_SUBST(clang_doxygen_generate_qhp,[NO])
962 AC_SUBST(clang_doxygen_qch_filename,[])
963 AC_SUBST(clang_doxygen_qhp_namespace,[])
964 AC_SUBST(clang_doxygen_qhelpgenerator_path,[])
965 AC_SUBST(clang_doxygen_qhp_cust_filter_name,["Clang $PACKAGE_VERSION"])
966 AC_SUBST(clang_doxygen_qhp_cust_filter_attrs,["Clang,$PACKAGE_VERSION"])
970 AC_MSG_ERROR([Invalid setting for --enable-doxygen-qt-help. Use "yes" or "no"]) ;;
973 dnl Allow disablement of threads
974 AC_ARG_ENABLE(threads,
975 AS_HELP_STRING([--enable-threads],
976 [Use threads if available (default is YES)]),,
979 yes) AC_SUBST(LLVM_ENABLE_THREADS,[1]) ;;
980 no) AC_SUBST(LLVM_ENABLE_THREADS,[0]) ;;
981 default) AC_SUBST(LLVM_ENABLE_THREADS,[1]) ;;
982 *) AC_MSG_ERROR([Invalid setting for --enable-threads. Use "yes" or "no"]) ;;
984 AC_DEFINE_UNQUOTED([LLVM_ENABLE_THREADS],$LLVM_ENABLE_THREADS,
985 [Define if threads enabled])
987 dnl Allow disablement of pthread.h
988 AC_ARG_ENABLE(pthreads,
989 AS_HELP_STRING([--enable-pthreads],
990 [Use pthreads if available (default is YES)]),,
993 yes) AC_SUBST(ENABLE_PTHREADS,[1]) ;;
994 no) AC_SUBST(ENABLE_PTHREADS,[0]) ;;
995 default) AC_SUBST(ENABLE_PTHREADS,[1]) ;;
996 *) AC_MSG_ERROR([Invalid setting for --enable-pthreads. Use "yes" or "no"]) ;;
999 dnl Allow disablement of zlib
1001 AS_HELP_STRING([--enable-zlib],
1002 [Use zlib for compression/decompression if
1003 available (default is YES)]),,
1005 case "$enableval" in
1006 yes) AC_SUBST(LLVM_ENABLE_ZLIB,[1]) ;;
1007 no) AC_SUBST(LLVM_ENABLE_ZLIB,[0]) ;;
1008 default) AC_SUBST(LLVM_ENABLE_ZLIB,[1]) ;;
1009 *) AC_MSG_ERROR([Invalid setting for --enable-zlib. Use "yes" or "no"]) ;;
1011 AC_DEFINE_UNQUOTED([LLVM_ENABLE_ZLIB],$LLVM_ENABLE_ZLIB,
1012 [Define if zlib is enabled])
1014 dnl Allow building without position independent code
1016 AS_HELP_STRING([--enable-pic],
1017 [Build LLVM with Position Independent Code (default is YES)]),,
1019 case "$enableval" in
1020 yes) AC_SUBST(ENABLE_PIC,[1]) ;;
1021 no) AC_SUBST(ENABLE_PIC,[0]) ;;
1022 default) AC_SUBST(ENABLE_PIC,[1]) ;;
1023 *) AC_MSG_ERROR([Invalid setting for --enable-pic. Use "yes" or "no"]) ;;
1025 AC_DEFINE_UNQUOTED([ENABLE_PIC],$ENABLE_PIC,
1026 [Define if position independent code is enabled])
1028 dnl Allow building a shared library and linking tools against it.
1029 AC_ARG_ENABLE(shared,
1030 AS_HELP_STRING([--enable-shared],
1031 [Build a shared library and link tools against it (default is NO)]),,
1033 case "$enableval" in
1034 yes) AC_SUBST(ENABLE_SHARED,[1]) ;;
1035 no) AC_SUBST(ENABLE_SHARED,[0]) ;;
1036 default) AC_SUBST(ENABLE_SHARED,[0]) ;;
1037 *) AC_MSG_ERROR([Invalid setting for --enable-shared. Use "yes" or "no"]) ;;
1040 dnl Allow libstdc++ is embedded in LLVM.dll.
1041 AC_ARG_ENABLE(embed-stdcxx,
1042 AS_HELP_STRING([--enable-embed-stdcxx],
1043 [Build a shared library with embedded libstdc++ for Win32 DLL (default is NO)]),,
1045 case "$enableval" in
1046 yes) AC_SUBST(ENABLE_EMBED_STDCXX,[1]) ;;
1047 no) AC_SUBST(ENABLE_EMBED_STDCXX,[0]) ;;
1048 default) AC_SUBST(ENABLE_EMBED_STDCXX,[0]) ;;
1049 *) AC_MSG_ERROR([Invalid setting for --enable-embed-stdcxx. Use "yes" or "no"]) ;;
1052 dnl Enable embedding timestamp information into build.
1053 AC_ARG_ENABLE(timestamps,
1054 AS_HELP_STRING([--enable-timestamps],
1055 [Enable embedding timestamp information in build (default is YES)]),,
1057 case "$enableval" in
1058 yes) AC_SUBST(ENABLE_TIMESTAMPS,[1]) ;;
1059 no) AC_SUBST(ENABLE_TIMESTAMPS,[0]) ;;
1060 default) AC_SUBST(ENABLE_TIMESTAMPS,[1]) ;;
1061 *) AC_MSG_ERROR([Invalid setting for --enable-timestamps. Use "yes" or "no"]) ;;
1063 AC_DEFINE_UNQUOTED([ENABLE_TIMESTAMPS],$ENABLE_TIMESTAMPS,
1064 [Define if timestamp information (e.g., __DATE__) is allowed])
1066 dnl Enable support for showing backtraces.
1067 AC_ARG_ENABLE(backtraces, AS_HELP_STRING(
1068 [--enable-backtraces],
1069 [Enable embedding backtraces on crash (default is YES)]),
1070 [case "$enableval" in
1071 yes) llvm_cv_enable_backtraces="yes" ;;
1072 no) llvm_cv_enable_backtraces="no" ;;
1073 *) AC_MSG_ERROR([Invalid setting for --enable-backtraces. Use "yes" or "no"]) ;;
1075 llvm_cv_enable_backtraces="yes")
1076 if test "$llvm_cv_enable_backtraces" = "yes" ; then
1077 AC_DEFINE([ENABLE_BACKTRACES],[1],
1078 [Define if you want backtraces on crash])
1081 dnl Enable installing platform specific signal handling overrides, for improved
1082 dnl CrashRecovery support or interaction with crash reporting software. This
1083 dnl support may be inappropriate for some clients embedding LLVM as a library.
1084 AC_ARG_ENABLE(crash-overrides, AS_HELP_STRING(
1085 [--enable-crash-overrides],
1086 [Enable crash handling overrides (default is YES)]),
1087 [case "$enableval" in
1088 yes) llvm_cv_enable_crash_overrides="yes" ;;
1089 no) llvm_cv_enable_crash_overrides="no" ;;
1090 *) AC_MSG_ERROR([Invalid setting for --enable-crash-overrides. Use "yes" or "no"]) ;;
1092 llvm_cv_enable_crash_overrides="yes")
1093 if test "$llvm_cv_enable_crash_overrides" = "yes" ; then
1094 AC_DEFINE([ENABLE_CRASH_OVERRIDES],[1],
1095 [Define to enable crash handling overrides])
1098 dnl List all possible targets
1099 ALL_TARGETS="X86 Sparc PowerPC ARM AArch64 Mips XCore MSP430 CppBackend NVPTX Hexagon SystemZ AMDGPU BPF"
1100 AC_SUBST(ALL_TARGETS,$ALL_TARGETS)
1102 dnl Allow specific targets to be specified for building (or not)
1104 AC_ARG_ENABLE([targets],AS_HELP_STRING([--enable-targets],
1105 [Build specific host targets: all or target1,target2,... Valid targets are:
1106 host, x86, x86_64, sparc, powerpc, arm64, arm, aarch64, mips, hexagon,
1107 xcore, msp430, nvptx, systemz, r600, bpf, wasm, and cpp (default=all)]),,
1109 if test "$enableval" = host-only ; then
1112 case "$enableval" in
1113 all) TARGETS_TO_BUILD="$ALL_TARGETS" ;;
1114 *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
1116 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
1117 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
1118 sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
1119 powerpc) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
1120 aarch64) TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
1121 arm64) TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
1122 arm) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
1123 bpf) TARGETS_TO_BUILD="BPF $TARGETS_TO_BUILD" ;;
1124 mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
1125 mipsel) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
1126 mips64) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
1127 mips64el) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
1128 xcore) TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
1129 msp430) TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;;
1130 cpp) TARGETS_TO_BUILD="CppBackend $TARGETS_TO_BUILD" ;;
1131 hexagon) TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;;
1132 nvptx) TARGETS_TO_BUILD="NVPTX $TARGETS_TO_BUILD" ;;
1133 systemz) TARGETS_TO_BUILD="SystemZ $TARGETS_TO_BUILD" ;;
1134 amdgpu) TARGETS_TO_BUILD="AMDGPU $TARGETS_TO_BUILD" ;;
1135 r600) TARGETS_TO_BUILD="AMDGPU $TARGETS_TO_BUILD" ;;
1136 wasm) TARGETS_TO_BUILD="WebAssembly $TARGETS_TO_BUILD" ;;
1137 host) case "$llvm_cv_target_arch" in
1138 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
1139 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
1140 Sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
1141 PowerPC) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
1142 AArch64) TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
1143 ARM) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
1144 Mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
1145 XCore) TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
1146 MSP430) TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;;
1147 Hexagon) TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;;
1148 NVPTX) TARGETS_TO_BUILD="NVPTX $TARGETS_TO_BUILD" ;;
1149 SystemZ) TARGETS_TO_BUILD="SystemZ $TARGETS_TO_BUILD" ;;
1150 WebAssembly) TARGETS_TO_BUILD="WebAssembly $TARGETS_TO_BUILD" ;;
1151 *) AC_MSG_ERROR([Can not set target to build]) ;;
1153 *) AC_MSG_ERROR([Unrecognized target $a_target]) ;;
1159 AC_ARG_ENABLE([experimental-targets],AS_HELP_STRING([--enable-experimental-targets],
1160 [Build experimental host targets: disable or target1,target2,...
1161 (default=disable)]),,
1164 if test ${enableval} != "disable"
1166 TARGETS_TO_BUILD="$enableval $TARGETS_TO_BUILD"
1169 AC_SUBST(TARGETS_TO_BUILD,$TARGETS_TO_BUILD)
1171 dnl Determine whether we are building LLVM support for the native architecture.
1172 dnl If so, define LLVM_NATIVE_ARCH to that LLVM target.
1173 for a_target in $TARGETS_TO_BUILD; do
1174 if test "$a_target" = "$LLVM_NATIVE_ARCH"; then
1175 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ARCH, $LLVM_NATIVE_ARCH,
1176 [LLVM architecture name for the native architecture, if available])
1177 LLVM_NATIVE_TARGET="LLVMInitialize${LLVM_NATIVE_ARCH}Target"
1178 LLVM_NATIVE_TARGETINFO="LLVMInitialize${LLVM_NATIVE_ARCH}TargetInfo"
1179 LLVM_NATIVE_TARGETMC="LLVMInitialize${LLVM_NATIVE_ARCH}TargetMC"
1180 LLVM_NATIVE_ASMPRINTER="LLVMInitialize${LLVM_NATIVE_ARCH}AsmPrinter"
1181 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/Makefile ; then
1182 LLVM_NATIVE_ASMPARSER="LLVMInitialize${LLVM_NATIVE_ARCH}AsmParser"
1184 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/Makefile ; then
1185 LLVM_NATIVE_DISASSEMBLER="LLVMInitialize${LLVM_NATIVE_ARCH}Disassembler"
1187 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGET, $LLVM_NATIVE_TARGET,
1188 [LLVM name for the native Target init function, if available])
1189 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGETINFO, $LLVM_NATIVE_TARGETINFO,
1190 [LLVM name for the native TargetInfo init function, if available])
1191 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGETMC, $LLVM_NATIVE_TARGETMC,
1192 [LLVM name for the native target MC init function, if available])
1193 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ASMPRINTER, $LLVM_NATIVE_ASMPRINTER,
1194 [LLVM name for the native AsmPrinter init function, if available])
1195 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/Makefile ; then
1196 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ASMPARSER, $LLVM_NATIVE_ASMPARSER,
1197 [LLVM name for the native AsmParser init function, if available])
1199 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/Makefile ; then
1200 AC_DEFINE_UNQUOTED(LLVM_NATIVE_DISASSEMBLER, $LLVM_NATIVE_DISASSEMBLER,
1201 [LLVM name for the native Disassembler init function, if available])
1206 dnl Build the LLVM_TARGET and LLVM_... macros for Targets.def and the individual
1207 dnl target feature def files.
1208 LLVM_ENUM_TARGETS=""
1209 LLVM_ENUM_ASM_PRINTERS=""
1210 LLVM_ENUM_ASM_PARSERS=""
1211 LLVM_ENUM_DISASSEMBLERS=""
1212 for target_to_build in $TARGETS_TO_BUILD; do
1213 LLVM_ENUM_TARGETS="LLVM_TARGET($target_to_build) $LLVM_ENUM_TARGETS"
1214 if test -f ${srcdir}/lib/Target/${target_to_build}/*AsmPrinter.cpp ; then
1215 LLVM_ENUM_ASM_PRINTERS="LLVM_ASM_PRINTER($target_to_build) $LLVM_ENUM_ASM_PRINTERS";
1217 if test -f ${srcdir}/lib/Target/${target_to_build}/AsmParser/Makefile ; then
1218 LLVM_ENUM_ASM_PARSERS="LLVM_ASM_PARSER($target_to_build) $LLVM_ENUM_ASM_PARSERS";
1220 if test -f ${srcdir}/lib/Target/${target_to_build}/Disassembler/Makefile ; then
1221 LLVM_ENUM_DISASSEMBLERS="LLVM_DISASSEMBLER($target_to_build) $LLVM_ENUM_DISASSEMBLERS";
1224 AC_SUBST(LLVM_ENUM_TARGETS)
1225 AC_SUBST(LLVM_ENUM_ASM_PRINTERS)
1226 AC_SUBST(LLVM_ENUM_ASM_PARSERS)
1227 AC_SUBST(LLVM_ENUM_DISASSEMBLERS)
1229 dnl Override the option to use for optimized builds.
1230 AC_ARG_WITH(optimize-option,
1231 AS_HELP_STRING([--with-optimize-option],
1232 [Select the compiler options to use for optimized builds]),,
1234 AC_MSG_CHECKING([optimization flags])
1237 case "$llvm_cv_os_type" in
1238 FreeBSD) optimize_option=-O2 ;;
1239 MingW) optimize_option=-O2 ;;
1240 *) optimize_option=-O3 ;;
1242 *) optimize_option="$withval" ;;
1244 AC_SUBST(OPTIMIZE_OPTION,$optimize_option)
1245 AC_MSG_RESULT([$optimize_option])
1247 dnl Specify extra build options
1248 AC_ARG_WITH(extra-options,
1249 AS_HELP_STRING([--with-extra-options],
1250 [Specify additional options to compile LLVM with]),,
1253 default) EXTRA_OPTIONS= ;;
1254 *) EXTRA_OPTIONS=$withval ;;
1256 AC_SUBST(EXTRA_OPTIONS,$EXTRA_OPTIONS)
1258 dnl Specify extra linker build options
1259 AC_ARG_WITH(extra-ld-options,
1260 AS_HELP_STRING([--with-extra-ld-options],
1261 [Specify additional options to link LLVM with]),,
1264 default) EXTRA_LD_OPTIONS= ;;
1265 *) EXTRA_LD_OPTIONS=$withval ;;
1267 AC_SUBST(EXTRA_LD_OPTIONS,$EXTRA_LD_OPTIONS)
1269 dnl Allow specific bindings to be specified for building (or not)
1270 AC_ARG_ENABLE([bindings],AS_HELP_STRING([--enable-bindings],
1271 [Build specific language bindings: all,auto,none,{binding-name} (default=auto)]),,
1273 BINDINGS_TO_BUILD=""
1274 case "$enableval" in
1275 yes | default | auto) BINDINGS_TO_BUILD="auto" ;;
1276 all ) BINDINGS_TO_BUILD="ocaml" ;;
1277 none | no) BINDINGS_TO_BUILD="" ;;
1278 *)for a_binding in `echo $enableval|sed -e 's/,/ /g' ` ; do
1279 case "$a_binding" in
1280 ocaml) BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD" ;;
1281 *) AC_MSG_ERROR([Unrecognized binding $a_binding]) ;;
1287 dnl Allow the ocaml libdir to be overridden. This could go in a configure
1288 dnl script for bindings/ocaml/configure, except that its auto value depends on
1289 dnl OCAMLC, which is found here to support tests.
1290 AC_ARG_WITH([ocaml-libdir],
1291 [AS_HELP_STRING([--with-ocaml-libdir],
1292 [Specify install location for ocaml bindings (default is stdlib)])],
1296 auto) with_ocaml_libdir="$withval" ;;
1297 /* | [[A-Za-z]]:[[\\/]]*) with_ocaml_libdir="$withval" ;;
1298 *) AC_MSG_ERROR([Invalid path for --with-ocaml-libdir. Provide full path]) ;;
1301 AC_ARG_WITH(clang-srcdir,
1302 AS_HELP_STRING([--with-clang-srcdir],
1303 [Directory to the out-of-tree Clang source]),,
1306 -) clang_src_root="" ;;
1307 /* | [[A-Za-z]]:[[\\/]]*) clang_src_root="$withval" ;;
1308 *) clang_src_root="$ac_pwd/$withval" ;;
1310 AC_SUBST(CLANG_SRC_ROOT,[$clang_src_root])
1312 AC_ARG_WITH(clang-resource-dir,
1313 AS_HELP_STRING([--with-clang-resource-dir],
1314 [Relative directory from the Clang binary for resource files]),,
1316 AC_DEFINE_UNQUOTED(CLANG_RESOURCE_DIR,"$withval",
1317 [Relative directory for resource files])
1319 AC_ARG_WITH(c-include-dirs,
1320 AS_HELP_STRING([--with-c-include-dirs],
1321 [Colon separated list of directories clang will search for headers]),,
1323 AC_DEFINE_UNQUOTED(C_INCLUDE_DIRS,"$withval",
1324 [Directories clang will search for headers])
1326 # Clang normally uses the system c++ headers and libraries. With this option,
1327 # clang will use the ones provided by a gcc installation instead. This option should
1328 # be passed the same value that was used with --prefix when configuring gcc.
1329 AC_ARG_WITH(gcc-toolchain,
1330 AS_HELP_STRING([--with-gcc-toolchain],
1331 [Directory where gcc is installed.]),,
1333 AC_DEFINE_UNQUOTED(GCC_INSTALL_PREFIX,"$withval",
1334 [Directory where gcc is installed.])
1336 AC_ARG_WITH(default-sysroot,
1337 AS_HELP_STRING([--with-default-sysroot],
1338 [Add --sysroot=<path> to all compiler invocations.]),,
1340 AC_DEFINE_UNQUOTED(DEFAULT_SYSROOT,"$withval",
1341 [Default <path> to all compiler invocations for --sysroot=<path>.])
1343 AC_ARG_WITH(clang-default-openmp-runtime,
1344 AS_HELP_STRING([--with-clang-default-openmp-runtime],
1345 [The default OpenMP runtime for Clang.]),,
1347 AC_DEFINE_UNQUOTED(CLANG_DEFAULT_OPENMP_RUNTIME,"$withval",
1348 [Default OpenMP runtime used by -fopenmp.])
1350 dnl Allow linking of LLVM with GPLv3 binutils code.
1351 AC_ARG_WITH(binutils-include,
1352 AS_HELP_STRING([--with-binutils-include],
1353 [Specify path to binutils/include/ containing plugin-api.h file for gold plugin.]),,
1356 default) WITH_BINUTILS_INCDIR=default ;;
1357 /* | [[A-Za-z]]:[[\\/]]*) WITH_BINUTILS_INCDIR=$withval ;;
1358 *) AC_MSG_ERROR([Invalid path for --with-binutils-include. Provide full path]) ;;
1360 if test "x$WITH_BINUTILS_INCDIR" != xdefault ; then
1361 AC_SUBST(BINUTILS_INCDIR,$WITH_BINUTILS_INCDIR)
1362 if test ! -f "$WITH_BINUTILS_INCDIR/plugin-api.h"; then
1363 echo "$WITH_BINUTILS_INCDIR/plugin-api.h"
1364 AC_MSG_ERROR([Invalid path to directory containing plugin-api.h.]);
1368 dnl Specify the URL where bug reports should be submitted.
1369 AC_ARG_WITH(bug-report-url,
1370 AS_HELP_STRING([--with-bug-report-url],
1371 [Specify the URL where bug reports should be submitted (default=http://llvm.org/bugs/)]),,
1372 withval="http://llvm.org/bugs/")
1373 AC_DEFINE_UNQUOTED(BUG_REPORT_URL,"$withval",
1376 dnl --enable-terminfo: check whether the user wants to control use of terminfo:
1377 AC_ARG_ENABLE(terminfo,AS_HELP_STRING(
1378 [--enable-terminfo],
1379 [Query the terminfo database if available (default is YES)]),
1380 [case "$enableval" in
1381 yes) llvm_cv_enable_terminfo="yes" ;;
1382 no) llvm_cv_enable_terminfo="no" ;;
1383 *) AC_MSG_ERROR([Invalid setting for --enable-terminfo. Use "yes" or "no"]) ;;
1385 llvm_cv_enable_terminfo="yes")
1386 case "$llvm_cv_enable_terminfo" in
1387 yes) AC_SUBST(ENABLE_TERMINFO,[1]) ;;
1388 no) AC_SUBST(ENABLE_TERMINFO,[0]) ;;
1391 dnl --enable-libedit: check whether the user wants to turn off libedit.
1392 AC_ARG_ENABLE(libedit,AS_HELP_STRING(
1394 [Use libedit if available (default is YES)]),
1395 [case "$enableval" in
1396 yes) llvm_cv_enable_libedit="yes" ;;
1397 no) llvm_cv_enable_libedit="no" ;;
1398 *) AC_MSG_ERROR([Invalid setting for --enable-libedit. Use "yes" or "no"]) ;;
1400 llvm_cv_enable_libedit="yes")
1402 dnl --enable-libffi : check whether the user wants to turn off libffi:
1403 AC_ARG_ENABLE(libffi,AS_HELP_STRING(
1404 --enable-libffi,[Check for the presence of libffi (default is NO)]),
1405 [case "$enableval" in
1406 yes) llvm_cv_enable_libffi="yes" ;;
1407 no) llvm_cv_enable_libffi="no" ;;
1408 *) AC_MSG_ERROR([Invalid setting for --enable-libffi. Use "yes" or "no"]) ;;
1410 llvm_cv_enable_libffi=no)
1412 AC_ARG_WITH(internal-prefix,
1413 AS_HELP_STRING([--with-internal-prefix],
1414 [Installation directory for internal files]),,
1416 AC_SUBST(INTERNAL_PREFIX,[$withval])
1418 dnl===-----------------------------------------------------------------------===
1420 dnl=== SECTION 4: Check for programs we need and that they are the right version
1422 dnl===-----------------------------------------------------------------------===
1424 dnl Check for the tools that the makefiles require
1427 AC_PATH_PROG(NM, [nm], [nm])
1428 AC_PATH_PROG(CMP, [cmp], [cmp])
1429 AC_PATH_PROG(CP, [cp], [cp])
1430 AC_PATH_PROG(DATE, [date], [date])
1431 AC_PATH_PROG(FIND, [find], [find])
1432 AC_PATH_PROG(GREP, [grep], [grep])
1433 AC_PATH_PROG(MKDIR,[mkdir],[mkdir])
1434 AC_PATH_PROG(MV, [mv], [mv])
1436 AC_CHECK_TOOL(AR, ar, false)
1437 AC_PATH_PROG(RM, [rm], [rm])
1438 AC_PATH_PROG(SED, [sed], [sed])
1439 AC_PATH_PROG(TAR, [tar], [gtar])
1440 AC_PATH_PROG(BINPWD,[pwd], [pwd])
1442 dnl Looking for misc. graph plotting software
1443 AC_PATH_PROG(DOT, [dot], [echo dot])
1444 if test "$DOT" != "echo dot" ; then
1445 AC_DEFINE([HAVE_DOT],[1],[Define if the dot program is available])
1446 dnl If we're targeting for mingw we should emit windows paths, not msys
1447 if test "$llvm_cv_os_type" = "MingW" ; then
1448 DOT=`echo $DOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1450 AC_DEFINE_UNQUOTED([LLVM_PATH_DOT],"$DOT${EXEEXT}",
1451 [Define to path to dot program if found or 'echo dot' otherwise])
1454 dnl Find the install program
1456 dnl Prepend src dir to install path dir if it's a relative path
1457 dnl This is a hack for installs that take place in something other
1458 dnl than the top level.
1460 [[\\/$]]* | ?:[[\\/]]* ) ;;
1461 *) INSTALL="\\\$(TOPSRCDIR)/$INSTALL" ;;
1464 dnl Checks for documentation and testing tools that we can do without. If these
1465 dnl are not found then they are set to "true" which always succeeds but does
1466 dnl nothing. This just lets the build output show that we could have done
1467 dnl something if the tool was available.
1468 AC_PATH_PROG(BZIP2, [bzip2])
1469 AC_PATH_PROG(CAT, [cat])
1470 AC_PATH_PROG(DOXYGEN, [doxygen])
1471 AC_PATH_PROG(GROFF, [groff])
1472 AC_PATH_PROG(GZIPBIN, [gzip])
1473 AC_PATH_PROG(PDFROFF, [pdfroff])
1474 AC_PATH_PROG(ZIP, [zip])
1475 AC_PATH_PROG(GO, [go])
1476 AC_PATH_PROGS(OCAMLFIND, [ocamlfind])
1477 AC_PATH_PROGS(GAS, [gas as])
1479 dnl Get the version of the linker in use.
1482 dnl Determine whether the linker supports the -R option.
1485 dnl Determine whether the compiler supports the -rdynamic option.
1486 AC_LINK_EXPORT_DYNAMIC
1488 dnl Determine whether the linker supports the --version-script option.
1489 AC_LINK_VERSION_SCRIPT
1491 AC_CHECK_HEADERS([errno.h])
1493 case "$llvm_cv_os_type" in
1494 Cygwin|MingW|Win32) llvm_shlib_ext=.dll ;;
1495 Darwin) llvm_shlib_ext=.dylib ;;
1496 *) llvm_shlib_ext=.so ;;
1499 AC_DEFINE_UNQUOTED([LTDL_SHLIB_EXT], ["$llvm_shlib_ext"], [The shared library extension])
1501 AC_MSG_CHECKING([tool compatibility])
1503 dnl Ensure that compilation tools are GCC or a GNU compatible compiler such as
1504 dnl ICC; we use GCC specific options in the makefiles so the compiler needs
1505 dnl to support those options.
1506 dnl "icc" emits gcc signatures
1507 dnl "icc -no-gcc" emits no gcc signature BUT is still compatible
1519 if test "$GCC" != "yes" && test "$ICC" != "yes"
1521 AC_MSG_ERROR([gcc|icc required but not found])
1524 dnl Ensure that compilation tools are compatible with GCC extensions
1525 if test "$GXX" != "yes" && test "$IXX" != "yes"
1527 AC_MSG_ERROR([g++|clang++|icc required but not found])
1530 dnl Verify that GCC is version 3.0 or higher
1531 if test "$GCC" = "yes"
1536 #if !defined(__GNUC__) || __GNUC__ < 3
1537 #error Unsupported GCC version
1541 [], [AC_MSG_ERROR([gcc 3.x required, but you have a lower version])])
1544 dnl Check for GNU Make. We use its extensions, so don't build without it
1545 if test -z "$llvm_cv_gnu_make_command"
1547 AC_MSG_ERROR([GNU Make required but not found])
1550 dnl Tool compatibility is okay if we make it here.
1553 dnl Check optional compiler flags.
1554 AC_MSG_CHECKING([optional compiler flags])
1555 case "$llvm_cv_cxx_compiler" in
1557 CXX_FLAG_CHECK(NO_VARIADIC_MACROS, [-Wno-variadic-macros])
1558 CXX_FLAG_CHECK(MISSING_FIELD_INITIALIZERS, [-Wmissing-field-initializers])
1559 CXX_FLAG_CHECK(COVERED_SWITCH_DEFAULT, [-Wcovered-switch-default])
1562 dnl If we're using gcc check for -Wno-missing-field-initializers as gcc will warn
1563 dnl on plain open brace initializations. clang won't so use -Wmissing-field-initializers
1565 CXX_FLAG_CHECK(MISSING_FIELD_INITIALIZERS, [-Wno-missing-field-initializers])
1566 CXX_FLAG_CHECK(NO_VARIADIC_MACROS, [-Wno-variadic-macros])
1567 CXX_FLAG_CHECK(COVERED_SWITCH_DEFAULT, [-Wcovered-switch-default])
1568 CXX_FLAG_CHECK(NO_MAYBE_UNINITIALIZED, [-Wno-maybe-uninitialized])
1569 dnl gcc 4.7 introduced -Wmaybe-uninitialized to distinguish cases which are
1570 dnl known to be uninitialized from cases which might be uninitialized. We
1571 dnl still want to catch the first kind of errors.
1572 if test -z "$NO_MAYBE_UNINITIALIZED"
1574 CXX_FLAG_CHECK(NO_UNINITIALIZED, [-Wno-uninitialized])
1581 dnl Check for misbehaving -Wcomment (gcc-4.7 has this) and maybe add
1582 dnl -Wno-comment to the flags.
1584 llvm_cv_old_cxxflags="$CXXFLAGS"
1585 CXXFLAGS="$CXXFLAGS -Wcomment -Werror"
1588 AC_LANG_SOURCE([[// Comment \o\
1590 int main() { return 0; }
1594 no_comment=-Wno-comment
1597 AC_SUBST(NO_COMMENT, [$no_comment])
1598 CXXFLAGS="$llvm_cv_old_cxxflags"
1600 AC_MSG_RESULT([$NO_VARIADIC_MACROS $MISSING_FIELD_INITIALIZERS $COVERED_SWITCH_DEFAULT $NO_UNINITIALIZED $NO_MAYBE_UNINITIALIZED $NO_COMMENT])
1602 AC_ARG_WITH([python],
1603 [AS_HELP_STRING([--with-python], [path to python])],
1604 [PYTHON="$withval"])
1606 if test -n "$PYTHON" && test -x "$PYTHON" ; then
1607 AC_MSG_CHECKING([for python])
1608 AC_MSG_RESULT([user defined: $with_python])
1610 if test -n "$PYTHON" ; then
1611 AC_MSG_WARN([specified python ($PYTHON) is not usable, searching path])
1614 AC_PATH_PROG([PYTHON], [python python2 python27],
1615 [AC_MSG_RESULT([not found])
1616 AC_MSG_ERROR([could not find python 2.7 or higher])])
1619 AC_MSG_CHECKING([for python >= 2.7])
1620 ac_python_version=`$PYTHON -V 2>&1 | cut -d' ' -f2`
1621 ac_python_version_major=`echo $ac_python_version | cut -d'.' -f1`
1622 ac_python_version_minor=`echo $ac_python_version | cut -d'.' -f2`
1623 ac_python_version_patch=`echo $ac_python_version | cut -d'.' -f3`
1624 if test "$ac_python_version_major" -gt "2" || \
1625 (test "$ac_python_version_major" -eq "2" && \
1626 test "$ac_python_version_minor" -ge "7") ; then
1627 AC_MSG_RESULT([$PYTHON ($ac_python_version)])
1629 AC_MSG_RESULT([not found])
1630 AC_MSG_FAILURE([found python $ac_python_version ($PYTHON); required >= 2.7])
1633 dnl===-----------------------------------------------------------------------===
1635 dnl=== SECTION 5: Check for libraries
1637 dnl===-----------------------------------------------------------------------===
1640 if test "$llvm_cv_os_type" = "MingW" ; then
1641 dnl mingw-gcc's driver doesn't imply -lole32 by default so we may need this
1642 dnl when being built with gcc for bootstrapping purposes.
1643 AC_CHECK_LIB(ole32, main)
1644 AC_CHECK_LIB(psapi, main)
1645 AC_CHECK_LIB(shell32, main)
1646 AC_CHECK_LIB(uuid,main)
1649 dnl dlopen() is required for plugin support.
1650 AC_SEARCH_LIBS(dlopen,dl,LLVM_DEFINE_SUBST([HAVE_DLOPEN],[1],
1651 [Define if dlopen() is available on this platform.]),
1652 AC_MSG_WARN([dlopen() not found - disabling plugin support]))
1654 dnl Search for the clock_gettime() function. Note that we rely on the POSIX
1655 dnl macros to detect whether clock_gettime is available, this just finds the
1656 dnl right libraries to link with.
1657 AC_SEARCH_LIBS(clock_gettime,rt)
1659 dnl The curses library is optional; used for querying terminal info
1660 if test "$llvm_cv_enable_terminfo" = "yes" ; then
1661 dnl We need the has_color functionality in curses for it to be useful.
1662 AC_SEARCH_LIBS(setupterm,tinfo terminfo curses ncurses ncursesw,
1663 LLVM_DEFINE_SUBST([HAVE_TERMINFO],[1],
1664 [Define if the setupterm() function is supported this platform.]))
1667 dnl The libedit library is optional; used by lib/LineEditor
1668 if test "$llvm_cv_enable_libedit" = "yes" ; then
1669 AC_SEARCH_LIBS(el_init,edit,
1670 AC_DEFINE([HAVE_LIBEDIT],[1],
1671 [Define if libedit is available on this platform.]))
1674 dnl libffi is optional; used to call external functions from the interpreter
1675 if test "$llvm_cv_enable_libffi" = "yes" ; then
1676 AC_SEARCH_LIBS(ffi_call,ffi,AC_DEFINE([HAVE_FFI_CALL],[1],
1677 [Define if libffi is available on this platform.]),
1678 AC_MSG_ERROR([libffi not found - configure without --enable-libffi to compile without it]))
1681 dnl mallinfo is optional; the code can compile (minus features) without it
1682 AC_SEARCH_LIBS(mallinfo,malloc,AC_DEFINE([HAVE_MALLINFO],[1],
1683 [Define if mallinfo() is available on this platform.]))
1685 dnl pthread locking functions are optional - but llvm will not be thread-safe
1687 if test "$LLVM_ENABLE_THREADS" -eq 1 && test "$ENABLE_PTHREADS" -eq 1 ; then
1688 AC_CHECK_LIB(pthread, pthread_mutex_init)
1689 AC_SEARCH_LIBS(pthread_mutex_lock,pthread,
1690 AC_DEFINE([HAVE_PTHREAD_MUTEX_LOCK],[1],
1691 [Have pthread_mutex_lock]))
1692 AC_SEARCH_LIBS(pthread_rwlock_init,pthread,
1693 AC_DEFINE([HAVE_PTHREAD_RWLOCK_INIT],[1],
1694 [Have pthread_rwlock_init]))
1695 AC_SEARCH_LIBS(pthread_getspecific,pthread,
1696 AC_DEFINE([HAVE_PTHREAD_GETSPECIFIC],[1],
1697 [Have pthread_getspecific]))
1700 dnl zlib is optional; used for compression/uncompression
1701 if test "$LLVM_ENABLE_ZLIB" -eq 1 ; then
1702 AC_CHECK_LIB(z, compress2)
1705 dnl Allow OProfile support for JIT output.
1706 AC_ARG_WITH(oprofile,
1707 AS_HELP_STRING([--with-oprofile=<prefix>],
1708 [Tell OProfile >= 0.9.4 how to symbolize JIT output]),
1710 AC_SUBST(USE_OPROFILE, [1])
1712 /usr|yes) llvm_cv_oppath=/usr/lib/oprofile ;;
1714 AC_SUBST(USE_OPROFILE, [0]) ;;
1715 *) llvm_cv_oppath="${withval}/lib/oprofile"
1716 CPPFLAGS="-I${withval}/include";;
1718 case $llvm_cv_os_type in
1720 if test -n "$llvm_cv_oppath" ; then
1721 LIBS="$LIBS -lopagent -L${llvm_cv_oppath} -Wl,-rpath,${llvm_cv_oppath}"
1722 dnl Work around http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=537744:
1723 dnl libbfd is not included properly in libopagent in some Debian
1724 dnl versions. If libbfd isn't found at all, we assume opagent works
1726 AC_SEARCH_LIBS(bfd_init, bfd, [], [])
1727 AC_SEARCH_LIBS(op_open_agent, opagent, [], [
1728 echo "Error! You need to have libopagent around."
1731 AC_CHECK_HEADER([opagent.h], [], [
1732 echo "Error! You need to have opagent.h around."
1737 AC_MSG_ERROR([OProfile support is available on Linux only.]) ;;
1741 AC_SUBST(USE_OPROFILE, [0])
1743 AC_DEFINE_UNQUOTED([LLVM_USE_OPROFILE],$USE_OPROFILE,
1744 [Define if we have the oprofile JIT-support library])
1746 dnl Enable support for Intel JIT Events API.
1747 AC_ARG_WITH(intel-jitevents,
1748 AS_HELP_STRING([--with-intel-jitevents Notify Intel JIT profiling API of generated code]),
1751 yes) AC_SUBST(USE_INTEL_JITEVENTS,[1]);;
1752 no) AC_SUBST(USE_INTEL_JITEVENTS,[0]);;
1753 *) AC_MSG_ERROR([Invalid setting for --with-intel-jitevents. Use "yes" or "no"]);;
1756 case $llvm_cv_os_type in
1757 Linux|Win32|Cygwin|MingW) ;;
1758 *) AC_MSG_ERROR([Intel JIT API support is available on Linux and Windows only.]);;
1761 case "$llvm_cv_target_arch" in
1763 *) AC_MSG_ERROR([Target architecture $llvm_cv_target_arch does not support Intel JIT Events API.]);;
1767 AC_SUBST(USE_INTEL_JITEVENTS, [0])
1769 AC_DEFINE_UNQUOTED([LLVM_USE_INTEL_JITEVENTS],$USE_INTEL_JITEVENTS,
1770 [Define if we have the Intel JIT API runtime support library])
1772 dnl Check for libxml2
1773 dnl Right now we're just checking for the existence, we could also check for a
1774 dnl particular version via --version on xml2-config
1775 AC_CHECK_PROGS(XML2CONFIG, xml2-config)
1777 AC_MSG_CHECKING(for libxml2 includes)
1778 if test "x$XML2CONFIG" = "x"; then
1779 AC_MSG_RESULT(xml2-config not found)
1781 LIBXML2_INC=`$XML2CONFIG --cflags`
1782 AC_MSG_RESULT($LIBXML2_INC)
1783 AC_CHECK_LIB(xml2, xmlReadFile,[AC_DEFINE([CLANG_HAVE_LIBXML],1,[Define if we have libxml2])
1784 LIBXML2_LIBS="-lxml2"])
1786 AC_SUBST(LIBXML2_LIBS)
1787 AC_SUBST(LIBXML2_INC)
1789 dnl===-----------------------------------------------------------------------===
1791 dnl=== SECTION 6: Check for header files
1793 dnl===-----------------------------------------------------------------------===
1795 dnl First, use autoconf provided macros for specific headers that we need
1796 dnl We don't check for ancient stuff or things that are guaranteed to be there
1797 dnl by the C++ standard. We always use the <cfoo> versions of <foo.h> C headers.
1798 dnl Generally we're looking for POSIX headers.
1800 AC_HEADER_MMAP_ANONYMOUS
1805 dnl size_t must be defined before including cxxabi.h on FreeBSD 10.0.
1806 AC_CHECK_HEADERS([cxxabi.h], [], [],
1807 [#include <stddef.h>
1811 AC_CHECK_HEADERS([dlfcn.h execinfo.h fcntl.h inttypes.h link.h])
1812 AC_CHECK_HEADERS([malloc.h setjmp.h signal.h stdint.h termios.h unistd.h])
1813 AC_CHECK_HEADERS([sys/mman.h sys/param.h sys/resource.h sys/time.h sys/uio.h])
1814 AC_CHECK_HEADERS([sys/ioctl.h malloc/malloc.h mach/mach.h])
1815 AC_CHECK_HEADERS([valgrind/valgrind.h])
1816 AC_CHECK_HEADERS([fenv.h])
1817 AC_CHECK_DECLS([FE_ALL_EXCEPT, FE_INEXACT], [], [], [[#include <fenv.h>]])
1818 if test "$LLVM_ENABLE_THREADS" -eq 1 && test "$ENABLE_PTHREADS" -eq 1 ; then
1819 AC_CHECK_HEADERS(pthread.h,
1820 AC_SUBST(HAVE_PTHREAD, 1),
1821 AC_SUBST(HAVE_PTHREAD, 0))
1823 AC_SUBST(HAVE_PTHREAD, 0)
1825 if test "$LLVM_ENABLE_ZLIB" -eq 1 ; then
1826 AC_CHECK_HEADERS(zlib.h,
1827 AC_SUBST(HAVE_LIBZ, 1),
1828 AC_SUBST(HAVE_LIBZ, 0))
1830 AC_SUBST(HAVE_LIBZ, 0)
1833 dnl Try to find ffi.h.
1834 if test "$llvm_cv_enable_libffi" = "yes" ; then
1835 AC_CHECK_HEADERS([ffi.h ffi/ffi.h])
1838 dnl Try to find Darwin specific crash reporting libraries.
1839 AC_CHECK_HEADERS([CrashReporterClient.h])
1841 dnl Try to find Darwin specific crash reporting global.
1842 AC_MSG_CHECKING([__crashreporter_info__])
1846 extern const char *__crashreporter_info__;
1848 __crashreporter_info__ = "test";
1854 AC_MSG_RESULT([yes])
1855 AC_DEFINE([HAVE_CRASHREPORTER_INFO], [1], [can use __crashreporter_info__])
1859 AC_DEFINE([HAVE_CRASHREPORTER_INFO], [0], [can use __crashreporter_info__])
1862 dnl===-----------------------------------------------------------------------===
1864 dnl=== SECTION 7: Check for types and structures
1866 dnl===-----------------------------------------------------------------------===
1871 AC_DEFINE_UNQUOTED([RETSIGTYPE],[void],[Define as the return type of signal handlers (`int' or `void').])
1873 AC_CHECK_TYPES([int64_t],,AC_MSG_ERROR([Type int64_t required but not found]))
1874 AC_CHECK_TYPES([uint64_t],,
1875 AC_CHECK_TYPES([u_int64_t],,
1876 AC_MSG_ERROR([Type uint64_t or u_int64_t required but not found])))
1878 dnl===-----------------------------------------------------------------------===
1880 dnl=== SECTION 8: Check for specific functions needed
1882 dnl===-----------------------------------------------------------------------===
1884 AC_CHECK_FUNCS([backtrace getcwd ])
1885 AC_CHECK_FUNCS([getpagesize getrusage getrlimit setrlimit gettimeofday ])
1886 AC_CHECK_FUNCS([isatty mkdtemp mkstemp ])
1887 AC_CHECK_FUNCS([mktemp posix_spawn pread realpath sbrk setrlimit ])
1888 AC_CHECK_FUNCS([strerror strerror_r setenv ])
1889 AC_CHECK_FUNCS([strtoll strtoq sysconf malloc_zone_statistics ])
1890 AC_CHECK_FUNCS([setjmp longjmp writev])
1891 AC_CHECK_FUNCS([futimes futimens])
1894 dnl Check for arc4random accessible via AC_INCLUDES_DEFAULT.
1895 AC_CHECK_DECLS([arc4random])
1897 dnl Check the declaration "Secure API" on Windows environments.
1898 AC_CHECK_DECLS([strerror_s])
1900 dnl Check symbols in libgcc.a for JIT on Mingw.
1901 if test "$llvm_cv_os_type" = "MingW" ; then
1902 AC_CHECK_LIB(gcc,_alloca,AC_DEFINE([HAVE__ALLOCA],[1],[Have host's _alloca]))
1903 AC_CHECK_LIB(gcc,__alloca,AC_DEFINE([HAVE___ALLOCA],[1],[Have host's __alloca]))
1904 AC_CHECK_LIB(gcc,__chkstk,AC_DEFINE([HAVE___CHKSTK],[1],[Have host's __chkstk]))
1905 AC_CHECK_LIB(gcc,__chkstk_ms,AC_DEFINE([HAVE___CHKSTK_MS],[1],[Have host's __chkstk_ms]))
1906 AC_CHECK_LIB(gcc,___chkstk,AC_DEFINE([HAVE____CHKSTK],[1],[Have host's ___chkstk]))
1907 AC_CHECK_LIB(gcc,___chkstk_ms,AC_DEFINE([HAVE____CHKSTK_MS],[1],[Have host's ___chkstk_ms]))
1909 AC_CHECK_LIB(gcc,__ashldi3,AC_DEFINE([HAVE___ASHLDI3],[1],[Have host's __ashldi3]))
1910 AC_CHECK_LIB(gcc,__ashrdi3,AC_DEFINE([HAVE___ASHRDI3],[1],[Have host's __ashrdi3]))
1911 AC_CHECK_LIB(gcc,__divdi3,AC_DEFINE([HAVE___DIVDI3],[1],[Have host's __divdi3]))
1912 AC_CHECK_LIB(gcc,__fixdfdi,AC_DEFINE([HAVE___FIXDFDI],[1],[Have host's __fixdfdi]))
1913 AC_CHECK_LIB(gcc,__fixsfdi,AC_DEFINE([HAVE___FIXSFDI],[1],[Have host's __fixsfdi]))
1914 AC_CHECK_LIB(gcc,__floatdidf,AC_DEFINE([HAVE___FLOATDIDF],[1],[Have host's __floatdidf]))
1915 AC_CHECK_LIB(gcc,__lshrdi3,AC_DEFINE([HAVE___LSHRDI3],[1],[Have host's __lshrdi3]))
1916 AC_CHECK_LIB(gcc,__moddi3,AC_DEFINE([HAVE___MODDI3],[1],[Have host's __moddi3]))
1917 AC_CHECK_LIB(gcc,__udivdi3,AC_DEFINE([HAVE___UDIVDI3],[1],[Have host's __udivdi3]))
1918 AC_CHECK_LIB(gcc,__umoddi3,AC_DEFINE([HAVE___UMODDI3],[1],[Have host's __umoddi3]))
1920 AC_CHECK_LIB(gcc,__main,AC_DEFINE([HAVE___MAIN],[1],[Have host's __main]))
1921 AC_CHECK_LIB(gcc,__cmpdi2,AC_DEFINE([HAVE___CMPDI2],[1],[Have host's __cmpdi2]))
1924 dnl Check Win32 API EnumerateLoadedModules.
1925 if test "$llvm_cv_os_type" = "MingW" ; then
1926 AC_MSG_CHECKING([whether EnumerateLoadedModules() accepts new decl])
1930 #include <windows.h>
1931 #include <imagehlp.h>
1932 extern void foo(PENUMLOADED_MODULES_CALLBACK);
1933 extern void foo(BOOL(CALLBACK*)(PCSTR,ULONG_PTR,ULONG,PVOID));
1937 AC_MSG_RESULT([yes])
1938 llvm_cv_win32_elmcb_pcstr="PCSTR"
1942 llvm_cv_win32_elmcb_pcstr="PSTR"
1944 AC_DEFINE_UNQUOTED([WIN32_ELMCB_PCSTR],$llvm_cv_win32_elmcb_pcstr,[Type of 1st arg on ELM Callback])
1947 dnl Check for mmap support.We also need to know if /dev/zero is required to
1948 dnl be opened for allocating RWX memory.
1949 dnl Make sure we aren't attempting to configure for an unknown system
1950 if test "$llvm_cv_platform_type" = "Unix" ; then
1953 AC_NEED_DEV_ZERO_FOR_MMAP
1955 if test "$ac_cv_func_mmap_fixed_mapped" = "no"
1957 AC_MSG_WARN([mmap() of a fixed address required but not supported])
1959 if test "$ac_cv_func_mmap_file" = "no"
1961 AC_MSG_WARN([mmap() of files required but not found])
1965 dnl atomic builtins are required for threading support.
1966 AC_MSG_CHECKING(for GCC atomic builtins)
1967 dnl Since we'll be using these atomic builtins in C++ files we should test
1968 dnl the C++ compiler.
1974 volatile unsigned long val = 1;
1975 __sync_synchronize();
1976 __sync_val_compare_and_swap(&val, 1, 0);
1977 __sync_add_and_fetch(&val, 1);
1978 __sync_sub_and_fetch(&val, 1);
1984 AC_MSG_RESULT([yes])
1985 AC_DEFINE([LLVM_HAS_ATOMICS], [1], [Has gcc/MSVC atomic intrinsics])
1989 AC_DEFINE([LLVM_HAS_ATOMICS], [0], [Has gcc/MSVC atomic intrinsics])
1990 AC_MSG_WARN([LLVM will be built thread-unsafe because atomic builtins are missing])
1994 dnl===-----------------------------------------------------------------------===
1996 dnl=== SECTION 9: Additional checks, variables, etc.
1998 dnl===-----------------------------------------------------------------------===
2000 dnl Handle 32-bit linux systems running a 64-bit kernel.
2001 dnl This has to come after section 4 because it invokes the compiler.
2002 if test "$llvm_cv_os_type" = "Linux" -a "$llvm_cv_target_arch" = "x86_64" ; then
2004 if test "$llvm_cv_linux_mixed" = "yes"; then
2005 llvm_cv_target_arch="x86"
2010 dnl Check whether __dso_handle is present
2011 AC_CHECK_FUNCS([__dso_handle])
2013 dnl Propagate the shared library extension that the libltdl checks did to
2014 dnl the Makefiles so we can use it there too
2015 AC_SUBST(SHLIBEXT,$llvm_shlib_ext)
2017 dnl Translate the various configuration directories and other basic
2018 dnl information into substitutions that will end up in Makefile.config.in
2019 dnl that these configured values can be used by the makefiles
2020 if test "${prefix}" = "NONE" ; then
2023 eval LLVM_PREFIX="${prefix}";
2024 eval LLVM_BINDIR="${prefix}/bin";
2025 eval LLVM_DATADIR="${prefix}/share/llvm";
2026 eval LLVM_DOCSDIR="${prefix}/share/doc/llvm";
2027 eval LLVM_ETCDIR="${prefix}/etc/llvm";
2028 eval LLVM_INCLUDEDIR="${prefix}/include";
2029 eval LLVM_INFODIR="${prefix}/info";
2030 eval LLVM_MANDIR="${prefix}/man";
2031 LLVM_CONFIGTIME=`date`
2032 AC_SUBST(LLVM_PREFIX)
2033 AC_SUBST(LLVM_BINDIR)
2034 AC_SUBST(LLVM_DATADIR)
2035 AC_SUBST(LLVM_DOCSDIR)
2036 AC_SUBST(LLVM_ETCDIR)
2037 AC_SUBST(LLVM_INCLUDEDIR)
2038 AC_SUBST(LLVM_INFODIR)
2039 AC_SUBST(LLVM_MANDIR)
2040 AC_SUBST(LLVM_CONFIGTIME)
2042 dnl Disable embedding timestamps in the build directory, with ENABLE_TIMESTAMPS.
2043 if test "${ENABLE_TIMESTAMPS}" = "0"; then
2044 LLVM_CONFIGTIME="(timestamp not enabled)"
2047 dnl Place the various directories into the config.h file as #defines so that we
2048 dnl can know about the installation paths within LLVM.
2049 AC_DEFINE_UNQUOTED(LLVM_PREFIX,"$LLVM_PREFIX",
2050 [Installation prefix directory])
2051 AC_DEFINE_UNQUOTED(LLVM_BINDIR, "$LLVM_BINDIR",
2052 [Installation directory for binary executables])
2053 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DATADIR",
2054 [Installation directory for data files])
2055 AC_DEFINE_UNQUOTED(LLVM_DOCSDIR, "$LLVM_DOCSDIR",
2056 [Installation directory for documentation])
2057 AC_DEFINE_UNQUOTED(LLVM_ETCDIR, "$LLVM_ETCDIR",
2058 [Installation directory for config files])
2059 AC_DEFINE_UNQUOTED(LLVM_INCLUDEDIR, "$LLVM_INCLUDEDIR",
2060 [Installation directory for include files])
2061 AC_DEFINE_UNQUOTED(LLVM_INFODIR, "$LLVM_INFODIR",
2062 [Installation directory for .info files])
2063 AC_DEFINE_UNQUOTED(LLVM_MANDIR, "$LLVM_MANDIR",
2064 [Installation directory for man pages])
2065 AC_DEFINE_UNQUOTED(LLVM_CONFIGTIME, "$LLVM_CONFIGTIME",
2066 [Time at which LLVM was configured])
2067 AC_DEFINE_UNQUOTED(LLVM_HOST_TRIPLE, "$host",
2068 [Host triple LLVM will be executed on])
2069 AC_DEFINE_UNQUOTED(LLVM_DEFAULT_TARGET_TRIPLE, "$target",
2070 [Target triple LLVM will generate code for by default])
2072 dnl Determine which bindings to build.
2073 if test "$BINDINGS_TO_BUILD" = auto ; then
2074 BINDINGS_TO_BUILD=""
2075 if test "x$OCAMLFIND" != x ; then
2076 BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD"
2078 if test "x$GO" != x ; then
2079 if $GO run ${srcdir}/bindings/go/conftest.go ; then
2080 BINDINGS_TO_BUILD="go $BINDINGS_TO_BUILD"
2084 AC_SUBST(BINDINGS_TO_BUILD,$BINDINGS_TO_BUILD)
2086 dnl Do any work necessary to ensure that bindings have what they need.
2087 binding_prereqs_failed=0
2088 for a_binding in $BINDINGS_TO_BUILD ; do
2089 case "$a_binding" in
2091 if test "x$OCAMLFIND" = x ; then
2092 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlfind not found. Try configure OCAMLFIND=/path/to/ocamlfind])
2093 binding_prereqs_failed=1
2096 if $OCAMLFIND opt -version >/dev/null 2>/dev/null ; then
2101 AC_SUBST(HAVE_OCAMLOPT)
2103 if ! $OCAMLFIND query ctypes >/dev/null 2>/dev/null; then
2104 AC_MSG_WARN([--enable-bindings=ocaml specified, but ctypes is not installed])
2105 binding_prereqs_failed=1
2108 if $OCAMLFIND query oUnit >/dev/null 2>/dev/null; then
2112 AC_MSG_WARN([--enable-bindings=ocaml specified, but OUnit 2 is not installed. Tests will not run])
2113 dnl oUnit is optional!
2115 AC_SUBST(HAVE_OCAML_OUNIT)
2117 if test "x$with_ocaml_libdir" != xauto ; then
2118 AC_SUBST(OCAML_LIBDIR,$with_ocaml_libdir)
2120 ocaml_stdlib="`"$OCAMLFIND" ocamlc -where`"
2121 if test "$LLVM_PREFIX" '<' "$ocaml_stdlib" -a "$ocaml_stdlib" '<' "$LLVM_PREFIX~"
2123 # ocaml stdlib is beneath our prefix; use stdlib
2124 AC_SUBST(OCAML_LIBDIR,$ocaml_stdlib)
2126 # ocaml stdlib is outside our prefix; use libdir/ocaml
2127 AC_SUBST(OCAML_LIBDIR,${prefix}/lib/ocaml)
2132 if test "x$GO" = x ; then
2133 AC_MSG_WARN([--enable-bindings=go specified, but go not found. Try configure GO=/path/to/go])
2134 binding_prereqs_failed=1
2136 if $GO run ${srcdir}/bindings/go/conftest.go ; then
2139 AC_MSG_WARN([--enable-bindings=go specified, but need at least Go 1.2. Try configure GO=/path/to/go])
2140 binding_prereqs_failed=1
2146 if test "$binding_prereqs_failed" = 1 ; then
2147 AC_MSG_ERROR([Prequisites for bindings not satisfied. Fix them or use configure --disable-bindings.])
2150 dnl Determine whether the compiler supports -fvisibility-inlines-hidden.
2151 AC_CXX_USE_VISIBILITY_INLINES_HIDDEN
2153 dnl Determine linker rpath flag
2154 if test "$llvm_cv_link_use_r" = "yes" ; then
2161 dnl Determine linker rdynamic flag
2162 if test "$llvm_cv_link_use_export_dynamic" = "yes" ; then
2163 RDYNAMIC="-rdynamic"
2169 dnl===-----------------------------------------------------------------------===
2171 dnl=== SECTION 10: Specify the output files and generate it
2173 dnl===-----------------------------------------------------------------------===
2175 dnl Configure header files
2176 dnl WARNING: dnl If you add or remove any of the following config headers, then
2177 dnl you MUST also update Makefile so that the variable FilesToConfig
2178 dnl contains the same list of files as AC_CONFIG_HEADERS below. This ensures the
2179 dnl files can be updated automatically when their *.in sources change.
2180 AC_CONFIG_HEADERS([include/llvm/Config/config.h include/llvm/Config/llvm-config.h])
2181 AH_TOP([#ifndef CONFIG_H
2184 /* Exported configuration */
2185 #include "llvm/Config/llvm-config.h"])
2188 AC_CONFIG_FILES([include/llvm/Config/Targets.def])
2189 AC_CONFIG_FILES([include/llvm/Config/AsmPrinters.def])
2190 AC_CONFIG_FILES([include/llvm/Config/AsmParsers.def])
2191 AC_CONFIG_FILES([include/llvm/Config/Disassemblers.def])
2192 AC_CONFIG_HEADERS([include/llvm/Support/DataTypes.h])
2194 dnl Configure the makefile's configuration data
2195 AC_CONFIG_FILES([Makefile.config])
2197 dnl Configure the RPM spec file for LLVM
2198 AC_CONFIG_FILES([llvm.spec])
2200 dnl Configure doxygen's configuration file
2201 AC_CONFIG_FILES([docs/doxygen.cfg])
2203 dnl Configure clang, if present
2204 if test "${clang_src_root}" = ""; then
2205 clang_src_root="$srcdir/tools/clang"
2207 if test -f ${clang_src_root}/README.txt; then
2208 dnl Clang supports build systems which use the multilib libdir suffix.
2209 dnl The autoconf system doesn't support this so stub out that variable.
2210 AC_DEFINE_UNQUOTED(CLANG_LIBDIR_SUFFIX,"",
2211 [Multilib suffix for libdir.])
2213 dnl Use variables to stay under 80 columns.
2214 configh="include/clang/Config/config.h"
2215 doxy="docs/doxygen.cfg"
2216 AC_CONFIG_HEADERS([tools/clang/${configh}:${clang_src_root}/${configh}.in])
2217 AC_CONFIG_FILES([tools/clang/${doxy}:${clang_src_root}/${doxy}.in])
2220 dnl OCaml findlib META file
2221 AC_CONFIG_FILES([bindings/ocaml/llvm/META.llvm])
2223 dnl Add --program-prefix value to Makefile.rules. Already an ARG variable.
2224 test "x$program_prefix" = "xNONE" && program_prefix=""
2225 AC_SUBST([program_prefix])
2228 dnl Do special configuration of Makefiles
2229 AC_CONFIG_COMMANDS([setup],,[llvm_src="${srcdir}"])
2230 AC_CONFIG_MAKEFILE(Makefile)
2231 AC_CONFIG_MAKEFILE(Makefile.common)
2232 AC_CONFIG_MAKEFILE(examples/Makefile)
2233 AC_CONFIG_MAKEFILE(lib/Makefile)
2234 AC_CONFIG_MAKEFILE(test/Makefile)
2235 AC_CONFIG_MAKEFILE(test/Makefile.tests)
2236 AC_CONFIG_MAKEFILE(unittests/Makefile)
2237 AC_CONFIG_MAKEFILE(tools/Makefile)
2238 AC_CONFIG_MAKEFILE(utils/Makefile)
2239 AC_CONFIG_MAKEFILE(projects/Makefile)
2240 AC_CONFIG_MAKEFILE(bindings/Makefile)
2241 AC_CONFIG_MAKEFILE(bindings/ocaml/Makefile.ocaml)
2243 dnl Finally, crank out the output
2247 echo "################################################################################"
2248 echo "################################################################################"
2249 echo "The LLVM project has deprecated building with configure & make."
2250 echo "The autoconf-based makefile build system will be removed in the 3.9 release."
2252 echo "Please migrate to the CMake-based build system."
2253 echo "For more information see: http://llvm.org/docs/CMake.html"
2254 echo "################################################################################"
2255 echo "################################################################################"