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 $llvm_cv_platform_type in
411 AC_DEFINE([LLVM_ON_UNIX],[1],[Define if this is Unixish platform])
412 AC_SUBST(LLVM_ON_UNIX,[1])
413 AC_SUBST(LLVM_ON_WIN32,[0])
416 AC_DEFINE([LLVM_ON_WIN32],[1],[Define if this is Win32ish platform])
417 AC_SUBST(LLVM_ON_UNIX,[0])
418 AC_SUBST(LLVM_ON_WIN32,[1])
422 dnl Determine what our target architecture is and configure accordingly.
423 dnl This will allow Makefiles to make a distinction between the hardware and
425 AC_CACHE_CHECK([target architecture],[llvm_cv_target_arch],
427 i?86-*) llvm_cv_target_arch="x86" ;;
428 amd64-* | x86_64-*) llvm_cv_target_arch="x86_64" ;;
429 sparc*-*) llvm_cv_target_arch="Sparc" ;;
430 powerpc*-*) llvm_cv_target_arch="PowerPC" ;;
431 arm64*-*) llvm_cv_target_arch="AArch64" ;;
432 arm*-*) llvm_cv_target_arch="ARM" ;;
433 aarch64*-*) llvm_cv_target_arch="AArch64" ;;
434 mips-* | mips64-*) llvm_cv_target_arch="Mips" ;;
435 mipsel-* | mips64el-*) llvm_cv_target_arch="Mips" ;;
436 xcore-*) llvm_cv_target_arch="XCore" ;;
437 msp430-*) llvm_cv_target_arch="MSP430" ;;
438 hexagon-*) llvm_cv_target_arch="Hexagon" ;;
439 nvptx-*) llvm_cv_target_arch="NVPTX" ;;
440 s390x-*) llvm_cv_target_arch="SystemZ" ;;
441 wasm*-*) llvm_cv_target_arch="WebAssembly" ;;
442 *) llvm_cv_target_arch="Unknown" ;;
445 if test "$llvm_cv_target_arch" = "Unknown" ; then
446 AC_MSG_WARN([Configuring LLVM for an unknown target archicture])
449 dnl Determine the LLVM native architecture for the target
450 case "$llvm_cv_target_arch" in
451 x86) LLVM_NATIVE_ARCH="X86" ;;
452 x86_64) LLVM_NATIVE_ARCH="X86" ;;
453 *) LLVM_NATIVE_ARCH="$llvm_cv_target_arch" ;;
456 dnl Define a substitution, ARCH, for the target architecture
457 AC_SUBST(ARCH,$llvm_cv_target_arch)
458 AC_SUBST(LLVM_NATIVE_ARCH,$LLVM_NATIVE_ARCH)
460 dnl Determine what our host architecture.
461 dnl This will allow MCJIT regress tests runs only for supported
464 i?86-*) host_arch="x86" ;;
465 amd64-* | x86_64-*) host_arch="x86_64" ;;
466 sparc*-*) host_arch="Sparc" ;;
467 powerpc*-*) host_arch="PowerPC" ;;
468 arm64*-*) host_arch="AArch64" ;;
469 arm*-*) host_arch="ARM" ;;
470 aarch64*-*) host_arch="AArch64" ;;
471 mips-* | mips64-*) host_arch="Mips" ;;
472 mipsel-* | mips64el-*) host_arch="Mips" ;;
473 xcore-*) host_arch="XCore" ;;
474 msp430-*) host_arch="MSP430" ;;
475 hexagon-*) host_arch="Hexagon" ;;
476 s390x-*) host_arch="SystemZ" ;;
477 wasm*-*) host_arch="WebAssembly" ;;
478 *) host_arch="Unknown" ;;
481 if test "$host_arch" = "Unknown" ; then
482 AC_MSG_WARN([Configuring LLVM for an unknown host archicture])
485 AC_SUBST(HOST_ARCH,$host_arch)
487 dnl Check for build platform executable suffix if we're cross-compiling
488 if test "$cross_compiling" = yes; then
489 AC_SUBST(LLVM_CROSS_COMPILING, [1])
491 ac_build_prefix=${build_alias}-
492 AC_CHECK_PROG(BUILD_CXX, ${ac_build_prefix}g++, ${ac_build_prefix}g++)
493 if test -z "$BUILD_CXX"; then
494 AC_CHECK_PROG(BUILD_CXX, g++, g++)
495 if test -z "$BUILD_CXX"; then
496 AC_CHECK_PROG(BUILD_CXX, c++, c++, , , /usr/ucb/c++)
500 AC_SUBST(LLVM_CROSS_COMPILING, [0])
503 dnl Check to see if there's a .svn or .git directory indicating that this
504 dnl build is being done from a checkout. This sets up several defaults for
505 dnl the command line switches. When we build with a checkout directory,
506 dnl we get a debug with assertions turned on. Without, we assume a source
507 dnl release and we get an optimized build without assertions.
508 dnl See --enable-optimized and --enable-assertions below
509 if test -d ".svn" -o -d "${srcdir}/.svn" -o -d ".git" -o -d "${srcdir}/.git"; then
512 AC_SUBST(CVSBUILD,[[CVSBUILD=1]])
518 dnl===-----------------------------------------------------------------------===
520 dnl=== SECTION 3: Command line arguments for the configure script.
522 dnl===-----------------------------------------------------------------------===
524 dnl --enable-libcpp : check whether or not to use libc++ on the command line
525 AC_ARG_ENABLE(libcpp,
526 AS_HELP_STRING([--enable-libcpp],
527 [Use libc++ if available (default is NO)]),,
530 yes) AC_SUBST(ENABLE_LIBCPP,[1]) ;;
531 no) AC_SUBST(ENABLE_LIBCPP,[0]) ;;
532 default) AC_SUBST(ENABLE_LIBCPP,[0]);;
533 *) AC_MSG_ERROR([Invalid setting for --enable-libcpp. Use "yes" or "no"]) ;;
536 dnl Check both GCC and Clang for sufficiently modern versions. These checks can
537 dnl be bypassed by passing a flag if necessary on a platform. We have to do
538 dnl these checks here so that we have the configuration of the standard C++
539 dnl library finished.
540 AC_ARG_ENABLE(compiler-version-checks,
541 AS_HELP_STRING([--enable-compiler-version-checks],
542 [Check the version of the host compiler (default is YES)]),,
549 case "$llvm_cv_cxx_compiler" in
551 AC_MSG_CHECKING([whether Clang is new enough])
552 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
553 #if __clang_major__ < 3 || (__clang_major__ == 3 && __clang_minor__ < 1)
554 #error This version of Clang is too old to build LLVM
557 [AC_MSG_RESULT([yes])],
560 The selected Clang compiler is not new enough to build LLVM. Please upgrade to
561 Clang 3.1. You may pass --disable-compiler-version-checks to configure to
562 bypass these sanity checks.])])
564 dnl Note that libstdc++4.6 is known broken for C++11 builds. The errors
565 dnl are sometimes deeply confusing though. Here we test for an obvious
566 dnl incomplete feature in 4.6's standard library that was completed in
567 dnl 4.7's. We also have to disable this test if 'ENABLE_LIBCPP' is set
568 dnl because the enable flags don't actually fix CXXFLAGS, they rely on
569 dnl that happening in the Makefile.
570 if test "$ENABLE_LIBCPP" -eq 0 ; then
571 AC_MSG_CHECKING([whether Clang will select a modern C++ standard library])
572 llvm_cv_old_cxxflags="$CXXFLAGS"
573 CXXFLAGS="$CXXFLAGS -std=c++0x"
574 AC_LINK_IFELSE([AC_LANG_SOURCE([[
576 std::atomic<float> x(0.0f);
577 int main() { return (float)x; }
579 [AC_MSG_RESULT([yes])],
582 We detected a missing feature in the standard C++ library that was known to be
583 missing in libstdc++4.6 and implemented in libstdc++4.7. There are numerous
584 C++11 problems with 4.6's library, and we don't support GCCs or libstdc++ older
585 than 4.7. You will need to update your system and ensure Clang uses the newer
588 If this error is incorrect or you need to force things to work, you may pass
589 '--disable-compiler-version-checks' to configure to bypass this test.])])
590 CXXFLAGS="$llvm_cv_old_cxxflags"
594 AC_MSG_CHECKING([whether GCC is new enough])
595 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
596 #if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 7)
597 #error This version of GCC is too old to build LLVM
600 [AC_MSG_RESULT([yes])],
603 The selected GCC C++ compiler is not new enough to build LLVM. Please upgrade
604 to GCC 4.7. You may pass --disable-compiler-version-checks to configure to
605 bypass these sanity checks.])])
613 AC_MSG_ERROR([Invalid setting for --enable-compiler-version-checks. Use "yes" or "no"])
617 dnl --enable-cxx1y : check whether or not to use -std=c++1y on the command line
619 AS_HELP_STRING([--enable-cxx1y],
620 [Use c++1y if available (default is NO)]),,
623 yes) AC_SUBST(ENABLE_CXX1Y,[1]) ;;
624 no) AC_SUBST(ENABLE_CXX1Y,[0]) ;;
625 default) AC_SUBST(ENABLE_CXX1Y,[0]);;
626 *) AC_MSG_ERROR([Invalid setting for --enable-cxx1y. Use "yes" or "no"]) ;;
629 dnl --enable-split-dwarf : check whether or not to use -gsplit-dwarf on the command
631 AC_ARG_ENABLE(split-dwarf,
632 AS_HELP_STRING([--enable-split-dwarf],
633 [Use split-dwarf if available (default is NO)]),,
636 yes) AC_SUBST(ENABLE_SPLIT_DWARF,[1]) ;;
637 no) AC_SUBST(ENABLE_SPLIT_DWARF,[0]) ;;
638 default) AC_SUBST(ENABLE_SPLIT_DWARF,[0]);;
639 *) AC_MSG_ERROR([Invalid setting for --enable-split-dwarf. Use "yes" or "no"]) ;;
642 dnl --enable-clang-arcmt: check whether to enable clang arcmt
644 AC_ARG_ENABLE(clang-arcmt,
645 AS_HELP_STRING([--enable-clang-arcmt],
646 [Enable building of clang ARCMT (default is YES)]),
647 clang_arcmt="$enableval",
650 yes) AC_SUBST(ENABLE_CLANG_ARCMT,[1]) ;;
651 no) AC_SUBST(ENABLE_CLANG_ARCMT,[0]) ;;
652 default) AC_SUBST(ENABLE_CLANG_ARCMT,[1]);;
653 *) AC_MSG_ERROR([Invalid setting for --enable-clang-arcmt. Use "yes" or "no"]) ;;
656 dnl --enable-clang-plugin-support: check whether to enable plugins in clang
657 clang_plugin_support="yes"
658 AC_ARG_ENABLE(clang-plugin-support,
659 AS_HELP_STRING([--enable-clang-plugin-support],
660 [Enable plugin support in clang (default is YES)]),
661 clang_plugin_support="$enableval",
664 yes) AC_SUBST(CLANG_PLUGIN_SUPPORT,[1]) ;;
665 no) AC_SUBST(CLANG_PLUGIN_SUPPORT,[0]) ;;
666 default) AC_SUBST(CLANG_PLUGIN_SUPPORT,[1]);;
667 *) AC_MSG_ERROR([Invalid setting for --enable-clang-plugin-support. Use "yes" or "no"]) ;;
670 dnl --enable-clang-static-analyzer: check whether to enable static-analyzer
671 clang_static_analyzer="yes"
672 AC_ARG_ENABLE(clang-static-analyzer,
673 AS_HELP_STRING([--enable-clang-static-analyzer],
674 [Enable building of clang Static Analyzer (default is YES)]),
675 clang_static_analyzer="$enableval",
678 yes) AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[1]) ;;
680 if test ${clang_arcmt} != "no" ; then
681 AC_MSG_ERROR([Cannot enable clang ARC Migration Tool while disabling static analyzer.])
683 AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[0])
685 default) AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[1]);;
686 *) AC_MSG_ERROR([Invalid setting for --enable-clang-static-analyzer. Use "yes" or "no"]) ;;
689 dnl --enable-optimized : check whether they want to do an optimized build:
690 AC_ARG_ENABLE(optimized, AS_HELP_STRING(
691 --enable-optimized,[Compile with optimizations enabled (default is NO)]),,enableval=$optimize)
692 if test ${enableval} = "no" ; then
693 AC_SUBST(ENABLE_OPTIMIZED,[[]])
695 AC_SUBST(ENABLE_OPTIMIZED,[[ENABLE_OPTIMIZED=1]])
698 dnl --enable-profiling : check whether they want to do a profile build:
699 AC_ARG_ENABLE(profiling, AS_HELP_STRING(
700 --enable-profiling,[Compile with profiling enabled (default is NO)]),,enableval="no")
701 if test ${enableval} = "no" ; then
702 AC_SUBST(ENABLE_PROFILING,[[]])
704 AC_SUBST(ENABLE_PROFILING,[[ENABLE_PROFILING=1]])
707 dnl --enable-assertions : check whether they want to turn on assertions or not:
708 AC_ARG_ENABLE(assertions,AS_HELP_STRING(
709 --enable-assertions,[Compile with assertion checks enabled (default is YES)]),, enableval="yes")
710 if test ${enableval} = "yes" ; then
711 AC_SUBST(DISABLE_ASSERTIONS,[[]])
712 assertions_enabled="yes"
714 AC_SUBST(DISABLE_ASSERTIONS,[[DISABLE_ASSERTIONS=1]])
715 assertions_enabled="no"
718 dnl --enable-werror : check whether we want Werror on by default
719 AC_ARG_ENABLE(werror,AS_HELP_STRING(
720 --enable-werror,[Compile with -Werror enabled (default is NO)]),, enableval="no")
722 yes) AC_SUBST(ENABLE_WERROR,[1]) ;;
723 no) AC_SUBST(ENABLE_WERROR,[0]) ;;
724 default) AC_SUBST(ENABLE_WERROR,[0]);;
725 *) AC_MSG_ERROR([Invalid setting for --enable-werror. Use "yes" or "no"]) ;;
728 dnl --enable-expensive-checks : check whether they want to turn on expensive debug checks:
729 AC_ARG_ENABLE(expensive-checks,AS_HELP_STRING(
730 --enable-expensive-checks,[Compile with expensive debug checks enabled (default is NO)]),, enableval="no")
731 if test ${enableval} = "yes" ; then
732 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[ENABLE_EXPENSIVE_CHECKS=1]])
733 AC_SUBST(EXPENSIVE_CHECKS,[[yes]])
735 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[]])
736 AC_SUBST(EXPENSIVE_CHECKS,[[no]])
739 dnl --enable-abi-breaking-checks : decide whether we should compile in asserts and
740 dnl checks that make the build ABI incompatible with an llvm built without these
742 AC_ARG_ENABLE(abi-breaking-checks,AS_HELP_STRING(
743 --enable-abi-breaking-checks,[Compile with abi-breaking asserts support (default is with-asserts)]),, enableval="with-asserts")
745 with-asserts) if test ${assertions_enabled} = "yes" ; then
746 AC_DEFINE([LLVM_ENABLE_ABI_BREAKING_CHECKS],[1],[Define to enable checks that alter the LLVM C++ ABI])
747 AC_SUBST(ENABLE_ABI_BREAKING_CHECKS,[1])
749 AC_SUBST(ENABLE_ABI_BREAKING_CHECKS,[0])
752 AC_DEFINE([LLVM_ENABLE_ABI_BREAKING_CHECKS],[1],[Define to enable checks that alter the LLVM C++ ABI])
753 AC_SUBST(ENABLE_ABI_BREAKING_CHECKS,[1])
756 AC_SUBST(ENABLE_ABI_BREAKING_CHECKS,[0])
758 *) AC_MSG_ERROR([Invalid setting for --enable-abi-breaking-checks. Use "with-asserts", "yes" or "no"])
761 dnl --enable-debug-runtime : should runtime libraries have debug symbols?
762 AC_ARG_ENABLE(debug-runtime,
763 AS_HELP_STRING(--enable-debug-runtime,[Build runtime libs with debug symbols (default is NO)]),,enableval=no)
764 if test ${enableval} = "no" ; then
765 AC_SUBST(DEBUG_RUNTIME,[[]])
767 AC_SUBST(DEBUG_RUNTIME,[[DEBUG_RUNTIME=1]])
770 dnl --enable-debug-symbols : should even optimized compiler libraries
771 dnl have debug symbols?
772 AC_ARG_ENABLE(debug-symbols,
773 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)
774 if test ${enableval} = "no" ; then
775 AC_SUBST(DEBUG_SYMBOLS,[[]])
777 AC_SUBST(DEBUG_SYMBOLS,[[DEBUG_SYMBOLS=1]])
780 dnl --enable-keep-symbols : do not strip installed executables
781 AC_ARG_ENABLE(keep-symbols,
782 AS_HELP_STRING(--enable-keep-symbols,[Do not strip installed executables)]),,enableval=no)
783 if test ${enableval} = "no" ; then
784 AC_SUBST(KEEP_SYMBOLS,[[]])
786 AC_SUBST(KEEP_SYMBOLS,[[KEEP_SYMBOLS=1]])
789 dnl --enable-jit: check whether they want to enable the jit
791 AS_HELP_STRING(--enable-jit,
792 [Enable Just In Time Compiling (default is YES)]),,
794 if test ${enableval} = "no"
798 case "$llvm_cv_target_arch" in
799 x86) AC_SUBST(TARGET_HAS_JIT,1) ;;
800 Sparc) AC_SUBST(TARGET_HAS_JIT,0) ;;
801 PowerPC) AC_SUBST(TARGET_HAS_JIT,1) ;;
802 x86_64) AC_SUBST(TARGET_HAS_JIT,1) ;;
803 ARM) AC_SUBST(TARGET_HAS_JIT,1) ;;
804 Mips) AC_SUBST(TARGET_HAS_JIT,1) ;;
805 XCore) AC_SUBST(TARGET_HAS_JIT,0) ;;
806 MSP430) AC_SUBST(TARGET_HAS_JIT,0) ;;
807 Hexagon) AC_SUBST(TARGET_HAS_JIT,0) ;;
808 NVPTX) AC_SUBST(TARGET_HAS_JIT,0) ;;
809 SystemZ) AC_SUBST(TARGET_HAS_JIT,1) ;;
810 WebAssembly) AC_SUBST(TARGET_HAS_JIT,0) ;;
811 *) AC_SUBST(TARGET_HAS_JIT,0) ;;
815 TARGETS_WITH_JIT="ARM AArch64 Mips PowerPC SystemZ X86"
816 AC_SUBST(TARGETS_WITH_JIT,$TARGETS_WITH_JIT)
818 dnl Allow enablement of building and installing docs
820 AS_HELP_STRING([--enable-docs],
821 [Build documents (default is YES)]),,
824 yes) AC_SUBST(ENABLE_DOCS,[1]) ;;
825 no) AC_SUBST(ENABLE_DOCS,[0]) ;;
826 default) AC_SUBST(ENABLE_DOCS,[1]) ;;
827 *) AC_MSG_ERROR([Invalid setting for --enable-docs. Use "yes" or "no"]) ;;
830 dnl Allow enablement of doxygen generated documentation
831 AC_ARG_ENABLE(doxygen,
832 AS_HELP_STRING([--enable-doxygen],
833 [Build doxygen documentation (default is NO)]),,
836 yes) AC_SUBST(ENABLE_DOXYGEN,[1]) ;;
837 no|default) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
838 *) AC_MSG_ERROR([Invalid setting for --enable-doxygen. Use "yes" or "no"]) ;;
841 dnl Allow enablement of doxygen search engine
842 AC_ARG_ENABLE(doxygen-search,
843 AS_HELP_STRING([--enable-doxygen-search],
844 [Enable doxygen search support (default is NO)]),,
846 ENABLE_DOXYGEN_SEARCH="$enableval"
850 *) AC_MSG_ERROR([Invalid setting for --enable-doxygen-search. Use "yes" or "no"]) ;;
853 AC_ARG_ENABLE(doxygen-external-search,
854 AS_HELP_STRING([--enable-doxygen-external-search],
855 [Enable doxygen exteranl search (default is NO)]),,
857 ENABLE_DOXYGEN_EXTERNAL_SEARCH="$enableval"
861 dnl To match with the CMake behavior, enable doxygen when
862 dnl --enable-doxygen-external-search is enabled.
863 case "$ENABLE_DOXYGEN_SEARCH" in
864 yes|default) ENABLE_DOXYGEN_SEARCH="yes" ;;
865 no) AC_MSG_ERROR([The option --enable-doxygen-external-search requires --enable-doxygen-search]) ;;
869 *) AC_MSG_ERROR([Invalid setting for --enable-doxygen-external-search. Use "yes" or "no"]) ;;
872 AC_ARG_WITH(doxygen-search-engine-url,
873 AS_HELP_STRING([--with-doxygen-search-engine-url],
874 [Specify the external search engine for doxygen]),,)
875 WITH_DOXYGEN_SEARCH_ENGINE_URL="$withval"
877 AC_ARG_WITH(doxygen-search-mappings,
878 AS_HELP_STRING([--with-doxygen-search-mappings],
879 [Specify the extra search mapping for doxygen]),,)
880 WITH_DOXYGEN_SEARCH_MAPPINGS="$withval"
882 case "$ENABLE_DOXYGEN_SEARCH" in
884 if test "$ENABLE_DOXYGEN" = "0" ; then
885 AC_MSG_ERROR([The option --enable-doxygen-search requires --enable-doxygen.])
888 AC_SUBST(enable_searchengine,[YES])
890 case "$ENABLE_DOXYGEN_EXTERNAL_SEARCH" in
892 AC_SUBST(enable_external_search,[YES])
893 AC_SUBST(enable_server_based_search,[YES])
894 AC_SUBST(searchengine_url,["$WITH_DOXYGEN_SEARCH_ENGINE_URL"])
895 AC_SUBST(extra_search_mappings,["$WITH_DOXYGEN_SEARCH_MAPPINGS"])
899 AC_SUBST(enable_external_search,[NO])
900 AC_SUBST(enable_server_based_search,[NO])
901 AC_SUBST(searchengine_url,[])
902 AC_SUBST(extra_search_mappings,[])
908 AC_SUBST(enable_searchengine,[NO])
909 AC_SUBST(searchengine_url,[])
910 AC_SUBST(enable_server_based_search,[NO])
911 AC_SUBST(enable_external_search,[NO])
912 AC_SUBST(extra_search_mappings,[])
916 AC_MSG_ERROR([Invalid setting for --enable-doxygen-search. Use "yes" or "no"])
920 dnl Allow enablement of doxygen generated Qt help files
921 AC_ARG_ENABLE(doxygen-qt-help,
922 AS_HELP_STRING([--enable-doxygen-qt-help],
923 [Build Qt help files (default is NO)]),,
927 if test "$ENABLE_DOXYGEN" = "0" ; then
928 AC_MSG_ERROR([The option --enable-doxygen-qt-help requires --enable-doxygen.])
931 AC_PATH_PROG(QHELPGENERATOR, [qhelpgenerator], [qhelpgenerator])
933 dnl Qt help file for llvm doxygen documentation
934 AC_SUBST(llvm_doxygen_generate_qhp,[YES])
935 AC_SUBST(llvm_doxygen_qch_filename,[org.llvm.qch])
936 AC_SUBST(llvm_doxygen_qhp_namespace,[org.llvm])
937 AC_SUBST(llvm_doxygen_qhelpgenerator_path,["$QHELPGENERATOR"])
938 AC_SUBST(llvm_doxygen_qhp_cust_filter_name,["$PACKAGE_STRING"])
939 AC_SUBST(llvm_doxygen_qhp_cust_filter_attrs,["$PACKAGE_NAME,$PACKAGE_VERSION"])
941 dnl Qt help file for clang doxygen documentation
942 AC_SUBST(clang_doxygen_generate_qhp,[YES])
943 AC_SUBST(clang_doxygen_qch_filename,[org.llvm.clang.qch])
944 AC_SUBST(clang_doxygen_qhp_namespace,[org.llvm.clang])
945 AC_SUBST(clang_doxygen_qhelpgenerator_path,["$QHELPGENERATOR"])
946 AC_SUBST(clang_doxygen_qhp_cust_filter_name,["Clang $PACKAGE_VERSION"])
947 AC_SUBST(clang_doxygen_qhp_cust_filter_attrs,["Clang,$PACKAGE_VERSION"])
951 AC_SUBST(llvm_doxygen_generate_qhp,[NO])
952 AC_SUBST(llvm_doxygen_qch_filename,[])
953 AC_SUBST(llvm_doxygen_qhp_namespace,[])
954 AC_SUBST(llvm_doxygen_qhelpgenerator_path,[])
955 AC_SUBST(llvm_doxygen_qhp_cust_filter_name,[])
956 AC_SUBST(llvm_doxygen_qhp_cust_filter_attrs,[])
958 AC_SUBST(clang_doxygen_generate_qhp,[NO])
959 AC_SUBST(clang_doxygen_qch_filename,[])
960 AC_SUBST(clang_doxygen_qhp_namespace,[])
961 AC_SUBST(clang_doxygen_qhelpgenerator_path,[])
962 AC_SUBST(clang_doxygen_qhp_cust_filter_name,["Clang $PACKAGE_VERSION"])
963 AC_SUBST(clang_doxygen_qhp_cust_filter_attrs,["Clang,$PACKAGE_VERSION"])
967 AC_MSG_ERROR([Invalid setting for --enable-doxygen-qt-help. Use "yes" or "no"]) ;;
970 dnl Allow disablement of threads
971 AC_ARG_ENABLE(threads,
972 AS_HELP_STRING([--enable-threads],
973 [Use threads if available (default is YES)]),,
976 yes) AC_SUBST(LLVM_ENABLE_THREADS,[1]) ;;
977 no) AC_SUBST(LLVM_ENABLE_THREADS,[0]) ;;
978 default) AC_SUBST(LLVM_ENABLE_THREADS,[1]) ;;
979 *) AC_MSG_ERROR([Invalid setting for --enable-threads. Use "yes" or "no"]) ;;
981 AC_DEFINE_UNQUOTED([LLVM_ENABLE_THREADS],$LLVM_ENABLE_THREADS,
982 [Define if threads enabled])
984 dnl Allow disablement of pthread.h
985 AC_ARG_ENABLE(pthreads,
986 AS_HELP_STRING([--enable-pthreads],
987 [Use pthreads if available (default is YES)]),,
990 yes) AC_SUBST(ENABLE_PTHREADS,[1]) ;;
991 no) AC_SUBST(ENABLE_PTHREADS,[0]) ;;
992 default) AC_SUBST(ENABLE_PTHREADS,[1]) ;;
993 *) AC_MSG_ERROR([Invalid setting for --enable-pthreads. Use "yes" or "no"]) ;;
996 dnl Allow disablement of zlib
998 AS_HELP_STRING([--enable-zlib],
999 [Use zlib for compression/decompression if
1000 available (default is YES)]),,
1002 case "$enableval" in
1003 yes) AC_SUBST(LLVM_ENABLE_ZLIB,[1]) ;;
1004 no) AC_SUBST(LLVM_ENABLE_ZLIB,[0]) ;;
1005 default) AC_SUBST(LLVM_ENABLE_ZLIB,[1]) ;;
1006 *) AC_MSG_ERROR([Invalid setting for --enable-zlib. Use "yes" or "no"]) ;;
1008 AC_DEFINE_UNQUOTED([LLVM_ENABLE_ZLIB],$LLVM_ENABLE_ZLIB,
1009 [Define if zlib is enabled])
1011 dnl Allow building without position independent code
1013 AS_HELP_STRING([--enable-pic],
1014 [Build LLVM with Position Independent Code (default is YES)]),,
1016 case "$enableval" in
1017 yes) AC_SUBST(ENABLE_PIC,[1]) ;;
1018 no) AC_SUBST(ENABLE_PIC,[0]) ;;
1019 default) AC_SUBST(ENABLE_PIC,[1]) ;;
1020 *) AC_MSG_ERROR([Invalid setting for --enable-pic. Use "yes" or "no"]) ;;
1022 AC_DEFINE_UNQUOTED([ENABLE_PIC],$ENABLE_PIC,
1023 [Define if position independent code is enabled])
1025 dnl Allow building a shared library and linking tools against it.
1026 AC_ARG_ENABLE(shared,
1027 AS_HELP_STRING([--enable-shared],
1028 [Build a shared library and link tools against it (default is NO)]),,
1030 case "$enableval" in
1031 yes) AC_SUBST(ENABLE_SHARED,[1]) ;;
1032 no) AC_SUBST(ENABLE_SHARED,[0]) ;;
1033 default) AC_SUBST(ENABLE_SHARED,[0]) ;;
1034 *) AC_MSG_ERROR([Invalid setting for --enable-shared. Use "yes" or "no"]) ;;
1037 dnl Allow libstdc++ is embedded in LLVM.dll.
1038 AC_ARG_ENABLE(embed-stdcxx,
1039 AS_HELP_STRING([--enable-embed-stdcxx],
1040 [Build a shared library with embedded libstdc++ for Win32 DLL (default is NO)]),,
1042 case "$enableval" in
1043 yes) AC_SUBST(ENABLE_EMBED_STDCXX,[1]) ;;
1044 no) AC_SUBST(ENABLE_EMBED_STDCXX,[0]) ;;
1045 default) AC_SUBST(ENABLE_EMBED_STDCXX,[0]) ;;
1046 *) AC_MSG_ERROR([Invalid setting for --enable-embed-stdcxx. Use "yes" or "no"]) ;;
1049 dnl Enable embedding timestamp information into build.
1050 AC_ARG_ENABLE(timestamps,
1051 AS_HELP_STRING([--enable-timestamps],
1052 [Enable embedding timestamp information in build (default is YES)]),,
1054 case "$enableval" in
1055 yes) AC_SUBST(ENABLE_TIMESTAMPS,[1]) ;;
1056 no) AC_SUBST(ENABLE_TIMESTAMPS,[0]) ;;
1057 default) AC_SUBST(ENABLE_TIMESTAMPS,[1]) ;;
1058 *) AC_MSG_ERROR([Invalid setting for --enable-timestamps. Use "yes" or "no"]) ;;
1060 AC_DEFINE_UNQUOTED([ENABLE_TIMESTAMPS],$ENABLE_TIMESTAMPS,
1061 [Define if timestamp information (e.g., __DATE__) is allowed])
1063 dnl Enable support for showing backtraces.
1064 AC_ARG_ENABLE(backtraces, AS_HELP_STRING(
1065 [--enable-backtraces],
1066 [Enable embedding backtraces on crash (default is YES)]),
1067 [case "$enableval" in
1068 yes) llvm_cv_enable_backtraces="yes" ;;
1069 no) llvm_cv_enable_backtraces="no" ;;
1070 *) AC_MSG_ERROR([Invalid setting for --enable-backtraces. Use "yes" or "no"]) ;;
1072 llvm_cv_enable_backtraces="yes")
1073 if test "$llvm_cv_enable_backtraces" = "yes" ; then
1074 AC_DEFINE([ENABLE_BACKTRACES],[1],
1075 [Define if you want backtraces on crash])
1078 dnl Enable installing platform specific signal handling overrides, for improved
1079 dnl CrashRecovery support or interaction with crash reporting software. This
1080 dnl support may be inappropriate for some clients embedding LLVM as a library.
1081 AC_ARG_ENABLE(crash-overrides, AS_HELP_STRING(
1082 [--enable-crash-overrides],
1083 [Enable crash handling overrides (default is YES)]),
1084 [case "$enableval" in
1085 yes) llvm_cv_enable_crash_overrides="yes" ;;
1086 no) llvm_cv_enable_crash_overrides="no" ;;
1087 *) AC_MSG_ERROR([Invalid setting for --enable-crash-overrides. Use "yes" or "no"]) ;;
1089 llvm_cv_enable_crash_overrides="yes")
1090 if test "$llvm_cv_enable_crash_overrides" = "yes" ; then
1091 AC_DEFINE([ENABLE_CRASH_OVERRIDES],[1],
1092 [Define to enable crash handling overrides])
1095 dnl List all possible targets
1096 ALL_TARGETS="X86 Sparc PowerPC ARM AArch64 Mips XCore MSP430 CppBackend NVPTX Hexagon SystemZ AMDGPU BPF"
1097 AC_SUBST(ALL_TARGETS,$ALL_TARGETS)
1099 dnl Allow specific targets to be specified for building (or not)
1101 AC_ARG_ENABLE([targets],AS_HELP_STRING([--enable-targets],
1102 [Build specific host targets: all or target1,target2,... Valid targets are:
1103 host, x86, x86_64, sparc, powerpc, arm64, arm, aarch64, mips, hexagon,
1104 xcore, msp430, nvptx, systemz, r600, bpf, wasm, and cpp (default=all)]),,
1106 if test "$enableval" = host-only ; then
1109 case "$enableval" in
1110 all) TARGETS_TO_BUILD="$ALL_TARGETS" ;;
1111 *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
1113 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
1114 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
1115 sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
1116 powerpc) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
1117 aarch64) TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
1118 arm64) TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
1119 arm) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
1120 bpf) TARGETS_TO_BUILD="BPF $TARGETS_TO_BUILD" ;;
1121 mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
1122 mipsel) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
1123 mips64) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
1124 mips64el) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
1125 xcore) TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
1126 msp430) TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;;
1127 cpp) TARGETS_TO_BUILD="CppBackend $TARGETS_TO_BUILD" ;;
1128 hexagon) TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;;
1129 nvptx) TARGETS_TO_BUILD="NVPTX $TARGETS_TO_BUILD" ;;
1130 systemz) TARGETS_TO_BUILD="SystemZ $TARGETS_TO_BUILD" ;;
1131 amdgpu) TARGETS_TO_BUILD="AMDGPU $TARGETS_TO_BUILD" ;;
1132 r600) TARGETS_TO_BUILD="AMDGPU $TARGETS_TO_BUILD" ;;
1133 wasm) TARGETS_TO_BUILD="WebAssembly $TARGETS_TO_BUILD" ;;
1134 host) case "$llvm_cv_target_arch" in
1135 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
1136 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
1137 Sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
1138 PowerPC) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
1139 AArch64) TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
1140 ARM) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
1141 Mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
1142 XCore) TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
1143 MSP430) TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;;
1144 Hexagon) TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;;
1145 NVPTX) TARGETS_TO_BUILD="NVPTX $TARGETS_TO_BUILD" ;;
1146 SystemZ) TARGETS_TO_BUILD="SystemZ $TARGETS_TO_BUILD" ;;
1147 WebAssembly) TARGETS_TO_BUILD="WebAssembly $TARGETS_TO_BUILD" ;;
1148 *) AC_MSG_ERROR([Can not set target to build]) ;;
1150 *) AC_MSG_ERROR([Unrecognized target $a_target]) ;;
1156 AC_ARG_ENABLE([experimental-targets],AS_HELP_STRING([--enable-experimental-targets],
1157 [Build experimental host targets: disable or target1,target2,...
1158 (default=disable)]),,
1161 if test ${enableval} != "disable"
1163 TARGETS_TO_BUILD="$enableval $TARGETS_TO_BUILD"
1166 AC_SUBST(TARGETS_TO_BUILD,$TARGETS_TO_BUILD)
1168 dnl Determine whether we are building LLVM support for the native architecture.
1169 dnl If so, define LLVM_NATIVE_ARCH to that LLVM target.
1170 for a_target in $TARGETS_TO_BUILD; do
1171 if test "$a_target" = "$LLVM_NATIVE_ARCH"; then
1172 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ARCH, $LLVM_NATIVE_ARCH,
1173 [LLVM architecture name for the native architecture, if available])
1174 LLVM_NATIVE_TARGET="LLVMInitialize${LLVM_NATIVE_ARCH}Target"
1175 LLVM_NATIVE_TARGETINFO="LLVMInitialize${LLVM_NATIVE_ARCH}TargetInfo"
1176 LLVM_NATIVE_TARGETMC="LLVMInitialize${LLVM_NATIVE_ARCH}TargetMC"
1177 LLVM_NATIVE_ASMPRINTER="LLVMInitialize${LLVM_NATIVE_ARCH}AsmPrinter"
1178 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/Makefile ; then
1179 LLVM_NATIVE_ASMPARSER="LLVMInitialize${LLVM_NATIVE_ARCH}AsmParser"
1181 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/Makefile ; then
1182 LLVM_NATIVE_DISASSEMBLER="LLVMInitialize${LLVM_NATIVE_ARCH}Disassembler"
1184 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGET, $LLVM_NATIVE_TARGET,
1185 [LLVM name for the native Target init function, if available])
1186 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGETINFO, $LLVM_NATIVE_TARGETINFO,
1187 [LLVM name for the native TargetInfo init function, if available])
1188 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGETMC, $LLVM_NATIVE_TARGETMC,
1189 [LLVM name for the native target MC init function, if available])
1190 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ASMPRINTER, $LLVM_NATIVE_ASMPRINTER,
1191 [LLVM name for the native AsmPrinter init function, if available])
1192 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/Makefile ; then
1193 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ASMPARSER, $LLVM_NATIVE_ASMPARSER,
1194 [LLVM name for the native AsmParser init function, if available])
1196 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/Makefile ; then
1197 AC_DEFINE_UNQUOTED(LLVM_NATIVE_DISASSEMBLER, $LLVM_NATIVE_DISASSEMBLER,
1198 [LLVM name for the native Disassembler init function, if available])
1203 dnl Build the LLVM_TARGET and LLVM_... macros for Targets.def and the individual
1204 dnl target feature def files.
1205 LLVM_ENUM_TARGETS=""
1206 LLVM_ENUM_ASM_PRINTERS=""
1207 LLVM_ENUM_ASM_PARSERS=""
1208 LLVM_ENUM_DISASSEMBLERS=""
1209 for target_to_build in $TARGETS_TO_BUILD; do
1210 LLVM_ENUM_TARGETS="LLVM_TARGET($target_to_build) $LLVM_ENUM_TARGETS"
1211 if test -f ${srcdir}/lib/Target/${target_to_build}/*AsmPrinter.cpp ; then
1212 LLVM_ENUM_ASM_PRINTERS="LLVM_ASM_PRINTER($target_to_build) $LLVM_ENUM_ASM_PRINTERS";
1214 if test -f ${srcdir}/lib/Target/${target_to_build}/AsmParser/Makefile ; then
1215 LLVM_ENUM_ASM_PARSERS="LLVM_ASM_PARSER($target_to_build) $LLVM_ENUM_ASM_PARSERS";
1217 if test -f ${srcdir}/lib/Target/${target_to_build}/Disassembler/Makefile ; then
1218 LLVM_ENUM_DISASSEMBLERS="LLVM_DISASSEMBLER($target_to_build) $LLVM_ENUM_DISASSEMBLERS";
1221 AC_SUBST(LLVM_ENUM_TARGETS)
1222 AC_SUBST(LLVM_ENUM_ASM_PRINTERS)
1223 AC_SUBST(LLVM_ENUM_ASM_PARSERS)
1224 AC_SUBST(LLVM_ENUM_DISASSEMBLERS)
1226 dnl Override the option to use for optimized builds.
1227 AC_ARG_WITH(optimize-option,
1228 AS_HELP_STRING([--with-optimize-option],
1229 [Select the compiler options to use for optimized builds]),,
1231 AC_MSG_CHECKING([optimization flags])
1234 case "$llvm_cv_os_type" in
1235 FreeBSD) optimize_option=-O2 ;;
1236 MingW) optimize_option=-O2 ;;
1237 *) optimize_option=-O3 ;;
1239 *) optimize_option="$withval" ;;
1241 AC_SUBST(OPTIMIZE_OPTION,$optimize_option)
1242 AC_MSG_RESULT([$optimize_option])
1244 dnl Specify extra build options
1245 AC_ARG_WITH(extra-options,
1246 AS_HELP_STRING([--with-extra-options],
1247 [Specify additional options to compile LLVM with]),,
1250 default) EXTRA_OPTIONS= ;;
1251 *) EXTRA_OPTIONS=$withval ;;
1253 AC_SUBST(EXTRA_OPTIONS,$EXTRA_OPTIONS)
1255 dnl Specify extra linker build options
1256 AC_ARG_WITH(extra-ld-options,
1257 AS_HELP_STRING([--with-extra-ld-options],
1258 [Specify additional options to link LLVM with]),,
1261 default) EXTRA_LD_OPTIONS= ;;
1262 *) EXTRA_LD_OPTIONS=$withval ;;
1264 AC_SUBST(EXTRA_LD_OPTIONS,$EXTRA_LD_OPTIONS)
1266 dnl Allow specific bindings to be specified for building (or not)
1267 AC_ARG_ENABLE([bindings],AS_HELP_STRING([--enable-bindings],
1268 [Build specific language bindings: all,auto,none,{binding-name} (default=auto)]),,
1270 BINDINGS_TO_BUILD=""
1271 case "$enableval" in
1272 yes | default | auto) BINDINGS_TO_BUILD="auto" ;;
1273 all ) BINDINGS_TO_BUILD="ocaml" ;;
1274 none | no) BINDINGS_TO_BUILD="" ;;
1275 *)for a_binding in `echo $enableval|sed -e 's/,/ /g' ` ; do
1276 case "$a_binding" in
1277 ocaml) BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD" ;;
1278 *) AC_MSG_ERROR([Unrecognized binding $a_binding]) ;;
1284 dnl Allow the ocaml libdir to be overridden. This could go in a configure
1285 dnl script for bindings/ocaml/configure, except that its auto value depends on
1286 dnl OCAMLC, which is found here to support tests.
1287 AC_ARG_WITH([ocaml-libdir],
1288 [AS_HELP_STRING([--with-ocaml-libdir],
1289 [Specify install location for ocaml bindings (default is stdlib)])],
1293 auto) with_ocaml_libdir="$withval" ;;
1294 /* | [[A-Za-z]]:[[\\/]]*) with_ocaml_libdir="$withval" ;;
1295 *) AC_MSG_ERROR([Invalid path for --with-ocaml-libdir. Provide full path]) ;;
1298 AC_ARG_WITH(clang-srcdir,
1299 AS_HELP_STRING([--with-clang-srcdir],
1300 [Directory to the out-of-tree Clang source]),,
1303 -) clang_src_root="" ;;
1304 /* | [[A-Za-z]]:[[\\/]]*) clang_src_root="$withval" ;;
1305 *) clang_src_root="$ac_pwd/$withval" ;;
1307 AC_SUBST(CLANG_SRC_ROOT,[$clang_src_root])
1309 AC_ARG_WITH(clang-resource-dir,
1310 AS_HELP_STRING([--with-clang-resource-dir],
1311 [Relative directory from the Clang binary for resource files]),,
1313 AC_DEFINE_UNQUOTED(CLANG_RESOURCE_DIR,"$withval",
1314 [Relative directory for resource files])
1316 AC_ARG_WITH(c-include-dirs,
1317 AS_HELP_STRING([--with-c-include-dirs],
1318 [Colon separated list of directories clang will search for headers]),,
1320 AC_DEFINE_UNQUOTED(C_INCLUDE_DIRS,"$withval",
1321 [Directories clang will search for headers])
1323 # Clang normally uses the system c++ headers and libraries. With this option,
1324 # clang will use the ones provided by a gcc installation instead. This option should
1325 # be passed the same value that was used with --prefix when configuring gcc.
1326 AC_ARG_WITH(gcc-toolchain,
1327 AS_HELP_STRING([--with-gcc-toolchain],
1328 [Directory where gcc is installed.]),,
1330 AC_DEFINE_UNQUOTED(GCC_INSTALL_PREFIX,"$withval",
1331 [Directory where gcc is installed.])
1333 AC_ARG_WITH(default-sysroot,
1334 AS_HELP_STRING([--with-default-sysroot],
1335 [Add --sysroot=<path> to all compiler invocations.]),,
1337 AC_DEFINE_UNQUOTED(DEFAULT_SYSROOT,"$withval",
1338 [Default <path> to all compiler invocations for --sysroot=<path>.])
1340 AC_ARG_WITH(clang-default-openmp-runtime,
1341 AS_HELP_STRING([--with-clang-default-openmp-runtime],
1342 [The default OpenMP runtime for Clang.]),,
1344 AC_DEFINE_UNQUOTED(CLANG_DEFAULT_OPENMP_RUNTIME,"$withval",
1345 [Default OpenMP runtime used by -fopenmp.])
1347 dnl Allow linking of LLVM with GPLv3 binutils code.
1348 AC_ARG_WITH(binutils-include,
1349 AS_HELP_STRING([--with-binutils-include],
1350 [Specify path to binutils/include/ containing plugin-api.h file for gold plugin.]),,
1353 default) WITH_BINUTILS_INCDIR=default ;;
1354 /* | [[A-Za-z]]:[[\\/]]*) WITH_BINUTILS_INCDIR=$withval ;;
1355 *) AC_MSG_ERROR([Invalid path for --with-binutils-include. Provide full path]) ;;
1357 if test "x$WITH_BINUTILS_INCDIR" != xdefault ; then
1358 AC_SUBST(BINUTILS_INCDIR,$WITH_BINUTILS_INCDIR)
1359 if test ! -f "$WITH_BINUTILS_INCDIR/plugin-api.h"; then
1360 echo "$WITH_BINUTILS_INCDIR/plugin-api.h"
1361 AC_MSG_ERROR([Invalid path to directory containing plugin-api.h.]);
1365 dnl Specify the URL where bug reports should be submitted.
1366 AC_ARG_WITH(bug-report-url,
1367 AS_HELP_STRING([--with-bug-report-url],
1368 [Specify the URL where bug reports should be submitted (default=http://llvm.org/bugs/)]),,
1369 withval="http://llvm.org/bugs/")
1370 AC_DEFINE_UNQUOTED(BUG_REPORT_URL,"$withval",
1373 dnl --enable-terminfo: check whether the user wants to control use of terminfo:
1374 AC_ARG_ENABLE(terminfo,AS_HELP_STRING(
1375 [--enable-terminfo],
1376 [Query the terminfo database if available (default is YES)]),
1377 [case "$enableval" in
1378 yes) llvm_cv_enable_terminfo="yes" ;;
1379 no) llvm_cv_enable_terminfo="no" ;;
1380 *) AC_MSG_ERROR([Invalid setting for --enable-terminfo. Use "yes" or "no"]) ;;
1382 llvm_cv_enable_terminfo="yes")
1383 case "$llvm_cv_enable_terminfo" in
1384 yes) AC_SUBST(ENABLE_TERMINFO,[1]) ;;
1385 no) AC_SUBST(ENABLE_TERMINFO,[0]) ;;
1388 dnl --enable-libedit: check whether the user wants to turn off libedit.
1389 AC_ARG_ENABLE(libedit,AS_HELP_STRING(
1391 [Use libedit if available (default is YES)]),
1392 [case "$enableval" in
1393 yes) llvm_cv_enable_libedit="yes" ;;
1394 no) llvm_cv_enable_libedit="no" ;;
1395 *) AC_MSG_ERROR([Invalid setting for --enable-libedit. Use "yes" or "no"]) ;;
1397 llvm_cv_enable_libedit="yes")
1399 dnl --enable-libffi : check whether the user wants to turn off libffi:
1400 AC_ARG_ENABLE(libffi,AS_HELP_STRING(
1401 --enable-libffi,[Check for the presence of libffi (default is NO)]),
1402 [case "$enableval" in
1403 yes) llvm_cv_enable_libffi="yes" ;;
1404 no) llvm_cv_enable_libffi="no" ;;
1405 *) AC_MSG_ERROR([Invalid setting for --enable-libffi. Use "yes" or "no"]) ;;
1407 llvm_cv_enable_libffi=no)
1409 AC_ARG_WITH(internal-prefix,
1410 AS_HELP_STRING([--with-internal-prefix],
1411 [Installation directory for internal files]),,
1413 AC_SUBST(INTERNAL_PREFIX,[$withval])
1415 dnl===-----------------------------------------------------------------------===
1417 dnl=== SECTION 4: Check for programs we need and that they are the right version
1419 dnl===-----------------------------------------------------------------------===
1421 dnl Check for the tools that the makefiles require
1424 AC_PATH_PROG(NM, [nm], [nm])
1425 AC_PATH_PROG(CMP, [cmp], [cmp])
1426 AC_PATH_PROG(CP, [cp], [cp])
1427 AC_PATH_PROG(DATE, [date], [date])
1428 AC_PATH_PROG(FIND, [find], [find])
1429 AC_PATH_PROG(GREP, [grep], [grep])
1430 AC_PATH_PROG(MKDIR,[mkdir],[mkdir])
1431 AC_PATH_PROG(MV, [mv], [mv])
1433 AC_CHECK_TOOL(AR, ar, false)
1434 AC_PATH_PROG(RM, [rm], [rm])
1435 AC_PATH_PROG(SED, [sed], [sed])
1436 AC_PATH_PROG(TAR, [tar], [gtar])
1437 AC_PATH_PROG(BINPWD,[pwd], [pwd])
1439 dnl Looking for misc. graph plotting software
1440 AC_PATH_PROG(DOT, [dot], [echo dot])
1441 if test "$DOT" != "echo dot" ; then
1442 AC_DEFINE([HAVE_DOT],[1],[Define if the dot program is available])
1443 dnl If we're targeting for mingw we should emit windows paths, not msys
1444 if test "$llvm_cv_os_type" = "MingW" ; then
1445 DOT=`echo $DOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1447 AC_DEFINE_UNQUOTED([LLVM_PATH_DOT],"$DOT${EXEEXT}",
1448 [Define to path to dot program if found or 'echo dot' otherwise])
1451 dnl Find the install program
1453 dnl Prepend src dir to install path dir if it's a relative path
1454 dnl This is a hack for installs that take place in something other
1455 dnl than the top level.
1457 [[\\/$]]* | ?:[[\\/]]* ) ;;
1458 *) INSTALL="\\\$(TOPSRCDIR)/$INSTALL" ;;
1461 dnl Checks for documentation and testing tools that we can do without. If these
1462 dnl are not found then they are set to "true" which always succeeds but does
1463 dnl nothing. This just lets the build output show that we could have done
1464 dnl something if the tool was available.
1465 AC_PATH_PROG(BZIP2, [bzip2])
1466 AC_PATH_PROG(CAT, [cat])
1467 AC_PATH_PROG(DOXYGEN, [doxygen])
1468 AC_PATH_PROG(GROFF, [groff])
1469 AC_PATH_PROG(GZIPBIN, [gzip])
1470 AC_PATH_PROG(PDFROFF, [pdfroff])
1471 AC_PATH_PROG(ZIP, [zip])
1472 AC_PATH_PROG(GO, [go])
1473 AC_PATH_PROGS(OCAMLFIND, [ocamlfind])
1474 AC_PATH_PROGS(GAS, [gas as])
1476 dnl Get the version of the linker in use.
1479 dnl Determine whether the linker supports the -R option.
1482 dnl Determine whether the compiler supports the -rdynamic option.
1483 AC_LINK_EXPORT_DYNAMIC
1485 dnl Determine whether the linker supports the --version-script option.
1486 AC_LINK_VERSION_SCRIPT
1488 AC_CHECK_HEADERS([errno.h])
1490 case "$llvm_cv_os_type" in
1491 Cygwin|MingW|Win32) llvm_shlib_ext=.dll ;;
1492 Darwin) llvm_shlib_ext=.dylib ;;
1493 *) llvm_shlib_ext=.so ;;
1496 AC_DEFINE_UNQUOTED([LTDL_SHLIB_EXT], ["$llvm_shlib_ext"], [The shared library extension])
1498 AC_MSG_CHECKING([tool compatibility])
1500 dnl Ensure that compilation tools are GCC or a GNU compatible compiler such as
1501 dnl ICC; we use GCC specific options in the makefiles so the compiler needs
1502 dnl to support those options.
1503 dnl "icc" emits gcc signatures
1504 dnl "icc -no-gcc" emits no gcc signature BUT is still compatible
1516 if test "$GCC" != "yes" && test "$ICC" != "yes"
1518 AC_MSG_ERROR([gcc|icc required but not found])
1521 dnl Ensure that compilation tools are compatible with GCC extensions
1522 if test "$GXX" != "yes" && test "$IXX" != "yes"
1524 AC_MSG_ERROR([g++|clang++|icc required but not found])
1527 dnl Verify that GCC is version 3.0 or higher
1528 if test "$GCC" = "yes"
1533 #if !defined(__GNUC__) || __GNUC__ < 3
1534 #error Unsupported GCC version
1538 [], [AC_MSG_ERROR([gcc 3.x required, but you have a lower version])])
1541 dnl Check for GNU Make. We use its extensions, so don't build without it
1542 if test -z "$llvm_cv_gnu_make_command"
1544 AC_MSG_ERROR([GNU Make required but not found])
1547 dnl Tool compatibility is okay if we make it here.
1550 dnl Check optional compiler flags.
1551 AC_MSG_CHECKING([optional compiler flags])
1552 case "$llvm_cv_cxx_compiler" in
1554 CXX_FLAG_CHECK(NO_VARIADIC_MACROS, [-Wno-variadic-macros])
1555 CXX_FLAG_CHECK(MISSING_FIELD_INITIALIZERS, [-Wmissing-field-initializers])
1556 CXX_FLAG_CHECK(COVERED_SWITCH_DEFAULT, [-Wcovered-switch-default])
1559 dnl If we're using gcc check for -Wno-missing-field-initializers as gcc will warn
1560 dnl on plain open brace initializations. clang won't so use -Wmissing-field-initializers
1562 CXX_FLAG_CHECK(MISSING_FIELD_INITIALIZERS, [-Wno-missing-field-initializers])
1563 CXX_FLAG_CHECK(NO_VARIADIC_MACROS, [-Wno-variadic-macros])
1564 CXX_FLAG_CHECK(COVERED_SWITCH_DEFAULT, [-Wcovered-switch-default])
1565 CXX_FLAG_CHECK(NO_MAYBE_UNINITIALIZED, [-Wno-maybe-uninitialized])
1566 dnl gcc 4.7 introduced -Wmaybe-uninitialized to distinguish cases which are
1567 dnl known to be uninitialized from cases which might be uninitialized. We
1568 dnl still want to catch the first kind of errors.
1569 if test -z "$NO_MAYBE_UNINITIALIZED"
1571 CXX_FLAG_CHECK(NO_UNINITIALIZED, [-Wno-uninitialized])
1578 dnl Check for misbehaving -Wcomment (gcc-4.7 has this) and maybe add
1579 dnl -Wno-comment to the flags.
1581 llvm_cv_old_cxxflags="$CXXFLAGS"
1582 CXXFLAGS="$CXXFLAGS -Wcomment -Werror"
1585 AC_LANG_SOURCE([[// Comment \o\
1587 int main() { return 0; }
1591 no_comment=-Wno-comment
1594 AC_SUBST(NO_COMMENT, [$no_comment])
1595 CXXFLAGS="$llvm_cv_old_cxxflags"
1597 AC_MSG_RESULT([$NO_VARIADIC_MACROS $MISSING_FIELD_INITIALIZERS $COVERED_SWITCH_DEFAULT $NO_UNINITIALIZED $NO_MAYBE_UNINITIALIZED $NO_COMMENT])
1599 AC_ARG_WITH([python],
1600 [AS_HELP_STRING([--with-python], [path to python])],
1601 [PYTHON="$withval"])
1603 if test -n "$PYTHON" && test -x "$PYTHON" ; then
1604 AC_MSG_CHECKING([for python])
1605 AC_MSG_RESULT([user defined: $with_python])
1607 if test -n "$PYTHON" ; then
1608 AC_MSG_WARN([specified python ($PYTHON) is not usable, searching path])
1611 AC_PATH_PROG([PYTHON], [python python2 python27],
1612 [AC_MSG_RESULT([not found])
1613 AC_MSG_ERROR([could not find python 2.7 or higher])])
1616 AC_MSG_CHECKING([for python >= 2.7])
1617 ac_python_version=`$PYTHON -V 2>&1 | cut -d' ' -f2`
1618 ac_python_version_major=`echo $ac_python_version | cut -d'.' -f1`
1619 ac_python_version_minor=`echo $ac_python_version | cut -d'.' -f2`
1620 ac_python_version_patch=`echo $ac_python_version | cut -d'.' -f3`
1621 if test "$ac_python_version_major" -gt "2" || \
1622 (test "$ac_python_version_major" -eq "2" && \
1623 test "$ac_python_version_minor" -ge "7") ; then
1624 AC_MSG_RESULT([$PYTHON ($ac_python_version)])
1626 AC_MSG_RESULT([not found])
1627 AC_MSG_FAILURE([found python $ac_python_version ($PYTHON); required >= 2.7])
1630 dnl===-----------------------------------------------------------------------===
1632 dnl=== SECTION 5: Check for libraries
1634 dnl===-----------------------------------------------------------------------===
1637 if test "$llvm_cv_os_type" = "MingW" ; then
1638 dnl mingw-gcc's driver doesn't imply -lole32 by default so we may need this
1639 dnl when being built with gcc for bootstrapping purposes.
1640 AC_CHECK_LIB(ole32, main)
1641 AC_CHECK_LIB(psapi, main)
1642 AC_CHECK_LIB(shell32, main)
1645 dnl dlopen() is required for plugin support.
1646 AC_SEARCH_LIBS(dlopen,dl,LLVM_DEFINE_SUBST([HAVE_DLOPEN],[1],
1647 [Define if dlopen() is available on this platform.]),
1648 AC_MSG_WARN([dlopen() not found - disabling plugin support]))
1650 dnl Search for the clock_gettime() function. Note that we rely on the POSIX
1651 dnl macros to detect whether clock_gettime is available, this just finds the
1652 dnl right libraries to link with.
1653 AC_SEARCH_LIBS(clock_gettime,rt)
1655 dnl The curses library is optional; used for querying terminal info
1656 if test "$llvm_cv_enable_terminfo" = "yes" ; then
1657 dnl We need the has_color functionality in curses for it to be useful.
1658 AC_SEARCH_LIBS(setupterm,tinfo terminfo curses ncurses ncursesw,
1659 LLVM_DEFINE_SUBST([HAVE_TERMINFO],[1],
1660 [Define if the setupterm() function is supported this platform.]))
1663 dnl The libedit library is optional; used by lib/LineEditor
1664 if test "$llvm_cv_enable_libedit" = "yes" ; then
1665 AC_SEARCH_LIBS(el_init,edit,
1666 AC_DEFINE([HAVE_LIBEDIT],[1],
1667 [Define if libedit is available on this platform.]))
1670 dnl libffi is optional; used to call external functions from the interpreter
1671 if test "$llvm_cv_enable_libffi" = "yes" ; then
1672 AC_SEARCH_LIBS(ffi_call,ffi,AC_DEFINE([HAVE_FFI_CALL],[1],
1673 [Define if libffi is available on this platform.]),
1674 AC_MSG_ERROR([libffi not found - configure without --enable-libffi to compile without it]))
1677 dnl mallinfo is optional; the code can compile (minus features) without it
1678 AC_SEARCH_LIBS(mallinfo,malloc,AC_DEFINE([HAVE_MALLINFO],[1],
1679 [Define if mallinfo() is available on this platform.]))
1681 dnl pthread locking functions are optional - but llvm will not be thread-safe
1683 if test "$LLVM_ENABLE_THREADS" -eq 1 && test "$ENABLE_PTHREADS" -eq 1 ; then
1684 AC_CHECK_LIB(pthread, pthread_mutex_init)
1685 AC_SEARCH_LIBS(pthread_mutex_lock,pthread,
1686 AC_DEFINE([HAVE_PTHREAD_MUTEX_LOCK],[1],
1687 [Have pthread_mutex_lock]))
1688 AC_SEARCH_LIBS(pthread_rwlock_init,pthread,
1689 AC_DEFINE([HAVE_PTHREAD_RWLOCK_INIT],[1],
1690 [Have pthread_rwlock_init]))
1691 AC_SEARCH_LIBS(pthread_getspecific,pthread,
1692 AC_DEFINE([HAVE_PTHREAD_GETSPECIFIC],[1],
1693 [Have pthread_getspecific]))
1696 dnl zlib is optional; used for compression/uncompression
1697 if test "$LLVM_ENABLE_ZLIB" -eq 1 ; then
1698 AC_CHECK_LIB(z, compress2)
1701 dnl Allow OProfile support for JIT output.
1702 AC_ARG_WITH(oprofile,
1703 AS_HELP_STRING([--with-oprofile=<prefix>],
1704 [Tell OProfile >= 0.9.4 how to symbolize JIT output]),
1706 AC_SUBST(USE_OPROFILE, [1])
1708 /usr|yes) llvm_cv_oppath=/usr/lib/oprofile ;;
1710 AC_SUBST(USE_OPROFILE, [0]) ;;
1711 *) llvm_cv_oppath="${withval}/lib/oprofile"
1712 CPPFLAGS="-I${withval}/include";;
1714 case $llvm_cv_os_type in
1716 if test -n "$llvm_cv_oppath" ; then
1717 LIBS="$LIBS -lopagent -L${llvm_cv_oppath} -Wl,-rpath,${llvm_cv_oppath}"
1718 dnl Work around http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=537744:
1719 dnl libbfd is not included properly in libopagent in some Debian
1720 dnl versions. If libbfd isn't found at all, we assume opagent works
1722 AC_SEARCH_LIBS(bfd_init, bfd, [], [])
1723 AC_SEARCH_LIBS(op_open_agent, opagent, [], [
1724 echo "Error! You need to have libopagent around."
1727 AC_CHECK_HEADER([opagent.h], [], [
1728 echo "Error! You need to have opagent.h around."
1733 AC_MSG_ERROR([OProfile support is available on Linux only.]) ;;
1737 AC_SUBST(USE_OPROFILE, [0])
1739 AC_DEFINE_UNQUOTED([LLVM_USE_OPROFILE],$USE_OPROFILE,
1740 [Define if we have the oprofile JIT-support library])
1742 dnl Enable support for Intel JIT Events API.
1743 AC_ARG_WITH(intel-jitevents,
1744 AS_HELP_STRING([--with-intel-jitevents Notify Intel JIT profiling API of generated code]),
1747 yes) AC_SUBST(USE_INTEL_JITEVENTS,[1]);;
1748 no) AC_SUBST(USE_INTEL_JITEVENTS,[0]);;
1749 *) AC_MSG_ERROR([Invalid setting for --with-intel-jitevents. Use "yes" or "no"]);;
1752 case $llvm_cv_os_type in
1753 Linux|Win32|Cygwin|MingW) ;;
1754 *) AC_MSG_ERROR([Intel JIT API support is available on Linux and Windows only.]);;
1757 case "$llvm_cv_target_arch" in
1759 *) AC_MSG_ERROR([Target architecture $llvm_cv_target_arch does not support Intel JIT Events API.]);;
1763 AC_SUBST(USE_INTEL_JITEVENTS, [0])
1765 AC_DEFINE_UNQUOTED([LLVM_USE_INTEL_JITEVENTS],$USE_INTEL_JITEVENTS,
1766 [Define if we have the Intel JIT API runtime support library])
1768 dnl Check for libxml2
1769 dnl Right now we're just checking for the existence, we could also check for a
1770 dnl particular version via --version on xml2-config
1771 AC_CHECK_PROGS(XML2CONFIG, xml2-config)
1773 AC_MSG_CHECKING(for libxml2 includes)
1774 if test "x$XML2CONFIG" = "x"; then
1775 AC_MSG_RESULT(xml2-config not found)
1777 LIBXML2_INC=`$XML2CONFIG --cflags`
1778 AC_MSG_RESULT($LIBXML2_INC)
1779 AC_CHECK_LIB(xml2, xmlReadFile,[AC_DEFINE([CLANG_HAVE_LIBXML],1,[Define if we have libxml2])
1780 LIBXML2_LIBS="-lxml2"])
1782 AC_SUBST(LIBXML2_LIBS)
1783 AC_SUBST(LIBXML2_INC)
1785 dnl===-----------------------------------------------------------------------===
1787 dnl=== SECTION 6: Check for header files
1789 dnl===-----------------------------------------------------------------------===
1791 dnl First, use autoconf provided macros for specific headers that we need
1792 dnl We don't check for ancient stuff or things that are guaranteed to be there
1793 dnl by the C++ standard. We always use the <cfoo> versions of <foo.h> C headers.
1794 dnl Generally we're looking for POSIX headers.
1796 AC_HEADER_MMAP_ANONYMOUS
1801 dnl size_t must be defined before including cxxabi.h on FreeBSD 10.0.
1802 AC_CHECK_HEADERS([cxxabi.h], [], [],
1803 [#include <stddef.h>
1807 AC_CHECK_HEADERS([dlfcn.h execinfo.h fcntl.h inttypes.h link.h])
1808 AC_CHECK_HEADERS([malloc.h setjmp.h signal.h stdint.h termios.h unistd.h])
1809 AC_CHECK_HEADERS([sys/mman.h sys/param.h sys/resource.h sys/time.h sys/uio.h])
1810 AC_CHECK_HEADERS([sys/ioctl.h malloc/malloc.h mach/mach.h])
1811 AC_CHECK_HEADERS([valgrind/valgrind.h])
1812 AC_CHECK_HEADERS([fenv.h])
1813 AC_CHECK_DECLS([FE_ALL_EXCEPT, FE_INEXACT], [], [], [[#include <fenv.h>]])
1814 if test "$LLVM_ENABLE_THREADS" -eq 1 && test "$ENABLE_PTHREADS" -eq 1 ; then
1815 AC_CHECK_HEADERS(pthread.h,
1816 AC_SUBST(HAVE_PTHREAD, 1),
1817 AC_SUBST(HAVE_PTHREAD, 0))
1819 AC_SUBST(HAVE_PTHREAD, 0)
1821 if test "$LLVM_ENABLE_ZLIB" -eq 1 ; then
1822 AC_CHECK_HEADERS(zlib.h,
1823 AC_SUBST(HAVE_LIBZ, 1),
1824 AC_SUBST(HAVE_LIBZ, 0))
1826 AC_SUBST(HAVE_LIBZ, 0)
1829 dnl Try to find ffi.h.
1830 if test "$llvm_cv_enable_libffi" = "yes" ; then
1831 AC_CHECK_HEADERS([ffi.h ffi/ffi.h])
1834 dnl Try to find Darwin specific crash reporting libraries.
1835 AC_CHECK_HEADERS([CrashReporterClient.h])
1837 dnl Try to find Darwin specific crash reporting global.
1838 AC_MSG_CHECKING([__crashreporter_info__])
1842 extern const char *__crashreporter_info__;
1844 __crashreporter_info__ = "test";
1850 AC_MSG_RESULT([yes])
1851 AC_DEFINE([HAVE_CRASHREPORTER_INFO], [1], [can use __crashreporter_info__])
1855 AC_DEFINE([HAVE_CRASHREPORTER_INFO], [0], [can use __crashreporter_info__])
1858 dnl===-----------------------------------------------------------------------===
1860 dnl=== SECTION 7: Check for types and structures
1862 dnl===-----------------------------------------------------------------------===
1867 AC_DEFINE_UNQUOTED([RETSIGTYPE],[void],[Define as the return type of signal handlers (`int' or `void').])
1869 AC_CHECK_TYPES([int64_t],,AC_MSG_ERROR([Type int64_t required but not found]))
1870 AC_CHECK_TYPES([uint64_t],,
1871 AC_CHECK_TYPES([u_int64_t],,
1872 AC_MSG_ERROR([Type uint64_t or u_int64_t required but not found])))
1874 dnl===-----------------------------------------------------------------------===
1876 dnl=== SECTION 8: Check for specific functions needed
1878 dnl===-----------------------------------------------------------------------===
1880 AC_CHECK_FUNCS([backtrace getcwd ])
1881 AC_CHECK_FUNCS([getpagesize getrusage getrlimit setrlimit gettimeofday ])
1882 AC_CHECK_FUNCS([isatty mkdtemp mkstemp ])
1883 AC_CHECK_FUNCS([mktemp posix_spawn pread realpath sbrk setrlimit ])
1884 AC_CHECK_FUNCS([strerror strerror_r setenv ])
1885 AC_CHECK_FUNCS([strtoll strtoq sysconf malloc_zone_statistics ])
1886 AC_CHECK_FUNCS([setjmp longjmp writev])
1887 AC_CHECK_FUNCS([futimes futimens])
1890 dnl Check for arc4random accessible via AC_INCLUDES_DEFAULT.
1891 AC_CHECK_DECLS([arc4random])
1893 dnl Check the declaration "Secure API" on Windows environments.
1894 AC_CHECK_DECLS([strerror_s])
1896 dnl Check symbols in libgcc.a for JIT on Mingw.
1897 if test "$llvm_cv_os_type" = "MingW" ; then
1898 AC_CHECK_LIB(gcc,_alloca,AC_DEFINE([HAVE__ALLOCA],[1],[Have host's _alloca]))
1899 AC_CHECK_LIB(gcc,__alloca,AC_DEFINE([HAVE___ALLOCA],[1],[Have host's __alloca]))
1900 AC_CHECK_LIB(gcc,__chkstk,AC_DEFINE([HAVE___CHKSTK],[1],[Have host's __chkstk]))
1901 AC_CHECK_LIB(gcc,__chkstk_ms,AC_DEFINE([HAVE___CHKSTK_MS],[1],[Have host's __chkstk_ms]))
1902 AC_CHECK_LIB(gcc,___chkstk,AC_DEFINE([HAVE____CHKSTK],[1],[Have host's ___chkstk]))
1903 AC_CHECK_LIB(gcc,___chkstk_ms,AC_DEFINE([HAVE____CHKSTK_MS],[1],[Have host's ___chkstk_ms]))
1905 AC_CHECK_LIB(gcc,__ashldi3,AC_DEFINE([HAVE___ASHLDI3],[1],[Have host's __ashldi3]))
1906 AC_CHECK_LIB(gcc,__ashrdi3,AC_DEFINE([HAVE___ASHRDI3],[1],[Have host's __ashrdi3]))
1907 AC_CHECK_LIB(gcc,__divdi3,AC_DEFINE([HAVE___DIVDI3],[1],[Have host's __divdi3]))
1908 AC_CHECK_LIB(gcc,__fixdfdi,AC_DEFINE([HAVE___FIXDFDI],[1],[Have host's __fixdfdi]))
1909 AC_CHECK_LIB(gcc,__fixsfdi,AC_DEFINE([HAVE___FIXSFDI],[1],[Have host's __fixsfdi]))
1910 AC_CHECK_LIB(gcc,__floatdidf,AC_DEFINE([HAVE___FLOATDIDF],[1],[Have host's __floatdidf]))
1911 AC_CHECK_LIB(gcc,__lshrdi3,AC_DEFINE([HAVE___LSHRDI3],[1],[Have host's __lshrdi3]))
1912 AC_CHECK_LIB(gcc,__moddi3,AC_DEFINE([HAVE___MODDI3],[1],[Have host's __moddi3]))
1913 AC_CHECK_LIB(gcc,__udivdi3,AC_DEFINE([HAVE___UDIVDI3],[1],[Have host's __udivdi3]))
1914 AC_CHECK_LIB(gcc,__umoddi3,AC_DEFINE([HAVE___UMODDI3],[1],[Have host's __umoddi3]))
1916 AC_CHECK_LIB(gcc,__main,AC_DEFINE([HAVE___MAIN],[1],[Have host's __main]))
1917 AC_CHECK_LIB(gcc,__cmpdi2,AC_DEFINE([HAVE___CMPDI2],[1],[Have host's __cmpdi2]))
1920 dnl Check Win32 API EnumerateLoadedModules.
1921 if test "$llvm_cv_os_type" = "MingW" ; then
1922 AC_MSG_CHECKING([whether EnumerateLoadedModules() accepts new decl])
1926 #include <windows.h>
1927 #include <imagehlp.h>
1928 extern void foo(PENUMLOADED_MODULES_CALLBACK);
1929 extern void foo(BOOL(CALLBACK*)(PCSTR,ULONG_PTR,ULONG,PVOID));
1933 AC_MSG_RESULT([yes])
1934 llvm_cv_win32_elmcb_pcstr="PCSTR"
1938 llvm_cv_win32_elmcb_pcstr="PSTR"
1940 AC_DEFINE_UNQUOTED([WIN32_ELMCB_PCSTR],$llvm_cv_win32_elmcb_pcstr,[Type of 1st arg on ELM Callback])
1943 dnl Check for mmap support.We also need to know if /dev/zero is required to
1944 dnl be opened for allocating RWX memory.
1945 dnl Make sure we aren't attempting to configure for an unknown system
1946 if test "$llvm_cv_platform_type" = "Unix" ; then
1949 AC_NEED_DEV_ZERO_FOR_MMAP
1951 if test "$ac_cv_func_mmap_fixed_mapped" = "no"
1953 AC_MSG_WARN([mmap() of a fixed address required but not supported])
1955 if test "$ac_cv_func_mmap_file" = "no"
1957 AC_MSG_WARN([mmap() of files required but not found])
1961 dnl atomic builtins are required for threading support.
1962 AC_MSG_CHECKING(for GCC atomic builtins)
1963 dnl Since we'll be using these atomic builtins in C++ files we should test
1964 dnl the C++ compiler.
1970 volatile unsigned long val = 1;
1971 __sync_synchronize();
1972 __sync_val_compare_and_swap(&val, 1, 0);
1973 __sync_add_and_fetch(&val, 1);
1974 __sync_sub_and_fetch(&val, 1);
1980 AC_MSG_RESULT([yes])
1981 AC_DEFINE([LLVM_HAS_ATOMICS], [1], [Has gcc/MSVC atomic intrinsics])
1985 AC_DEFINE([LLVM_HAS_ATOMICS], [0], [Has gcc/MSVC atomic intrinsics])
1986 AC_MSG_WARN([LLVM will be built thread-unsafe because atomic builtins are missing])
1990 dnl===-----------------------------------------------------------------------===
1992 dnl=== SECTION 9: Additional checks, variables, etc.
1994 dnl===-----------------------------------------------------------------------===
1996 dnl Handle 32-bit linux systems running a 64-bit kernel.
1997 dnl This has to come after section 4 because it invokes the compiler.
1998 if test "$llvm_cv_os_type" = "Linux" -a "$llvm_cv_target_arch" = "x86_64" ; then
2000 if test "$llvm_cv_linux_mixed" = "yes"; then
2001 llvm_cv_target_arch="x86"
2006 dnl Check whether __dso_handle is present
2007 AC_CHECK_FUNCS([__dso_handle])
2009 dnl Propagate the shared library extension that the libltdl checks did to
2010 dnl the Makefiles so we can use it there too
2011 AC_SUBST(SHLIBEXT,$llvm_shlib_ext)
2013 dnl Translate the various configuration directories and other basic
2014 dnl information into substitutions that will end up in Makefile.config.in
2015 dnl that these configured values can be used by the makefiles
2016 if test "${prefix}" = "NONE" ; then
2019 eval LLVM_PREFIX="${prefix}";
2020 eval LLVM_BINDIR="${prefix}/bin";
2021 eval LLVM_DATADIR="${prefix}/share/llvm";
2022 eval LLVM_DOCSDIR="${prefix}/share/doc/llvm";
2023 eval LLVM_ETCDIR="${prefix}/etc/llvm";
2024 eval LLVM_INCLUDEDIR="${prefix}/include";
2025 eval LLVM_INFODIR="${prefix}/info";
2026 eval LLVM_MANDIR="${prefix}/man";
2027 LLVM_CONFIGTIME=`date`
2028 AC_SUBST(LLVM_PREFIX)
2029 AC_SUBST(LLVM_BINDIR)
2030 AC_SUBST(LLVM_DATADIR)
2031 AC_SUBST(LLVM_DOCSDIR)
2032 AC_SUBST(LLVM_ETCDIR)
2033 AC_SUBST(LLVM_INCLUDEDIR)
2034 AC_SUBST(LLVM_INFODIR)
2035 AC_SUBST(LLVM_MANDIR)
2036 AC_SUBST(LLVM_CONFIGTIME)
2038 dnl Disable embedding timestamps in the build directory, with ENABLE_TIMESTAMPS.
2039 if test "${ENABLE_TIMESTAMPS}" = "0"; then
2040 LLVM_CONFIGTIME="(timestamp not enabled)"
2043 dnl Place the various directories into the config.h file as #defines so that we
2044 dnl can know about the installation paths within LLVM.
2045 AC_DEFINE_UNQUOTED(LLVM_PREFIX,"$LLVM_PREFIX",
2046 [Installation prefix directory])
2047 AC_DEFINE_UNQUOTED(LLVM_BINDIR, "$LLVM_BINDIR",
2048 [Installation directory for binary executables])
2049 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DATADIR",
2050 [Installation directory for data files])
2051 AC_DEFINE_UNQUOTED(LLVM_DOCSDIR, "$LLVM_DOCSDIR",
2052 [Installation directory for documentation])
2053 AC_DEFINE_UNQUOTED(LLVM_ETCDIR, "$LLVM_ETCDIR",
2054 [Installation directory for config files])
2055 AC_DEFINE_UNQUOTED(LLVM_INCLUDEDIR, "$LLVM_INCLUDEDIR",
2056 [Installation directory for include files])
2057 AC_DEFINE_UNQUOTED(LLVM_INFODIR, "$LLVM_INFODIR",
2058 [Installation directory for .info files])
2059 AC_DEFINE_UNQUOTED(LLVM_MANDIR, "$LLVM_MANDIR",
2060 [Installation directory for man pages])
2061 AC_DEFINE_UNQUOTED(LLVM_CONFIGTIME, "$LLVM_CONFIGTIME",
2062 [Time at which LLVM was configured])
2063 AC_DEFINE_UNQUOTED(LLVM_HOST_TRIPLE, "$host",
2064 [Host triple LLVM will be executed on])
2065 AC_DEFINE_UNQUOTED(LLVM_DEFAULT_TARGET_TRIPLE, "$target",
2066 [Target triple LLVM will generate code for by default])
2068 dnl Determine which bindings to build.
2069 if test "$BINDINGS_TO_BUILD" = auto ; then
2070 BINDINGS_TO_BUILD=""
2071 if test "x$OCAMLFIND" != x ; then
2072 BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD"
2074 if test "x$GO" != x ; then
2075 if $GO run ${srcdir}/bindings/go/conftest.go ; then
2076 BINDINGS_TO_BUILD="go $BINDINGS_TO_BUILD"
2080 AC_SUBST(BINDINGS_TO_BUILD,$BINDINGS_TO_BUILD)
2082 dnl Do any work necessary to ensure that bindings have what they need.
2083 binding_prereqs_failed=0
2084 for a_binding in $BINDINGS_TO_BUILD ; do
2085 case "$a_binding" in
2087 if test "x$OCAMLFIND" = x ; then
2088 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlfind not found. Try configure OCAMLFIND=/path/to/ocamlfind])
2089 binding_prereqs_failed=1
2092 if $OCAMLFIND opt -version >/dev/null 2>/dev/null ; then
2097 AC_SUBST(HAVE_OCAMLOPT)
2099 if ! $OCAMLFIND query ctypes >/dev/null 2>/dev/null; then
2100 AC_MSG_WARN([--enable-bindings=ocaml specified, but ctypes is not installed])
2101 binding_prereqs_failed=1
2104 if $OCAMLFIND query oUnit >/dev/null 2>/dev/null; then
2108 AC_MSG_WARN([--enable-bindings=ocaml specified, but OUnit 2 is not installed. Tests will not run])
2109 dnl oUnit is optional!
2111 AC_SUBST(HAVE_OCAML_OUNIT)
2113 if test "x$with_ocaml_libdir" != xauto ; then
2114 AC_SUBST(OCAML_LIBDIR,$with_ocaml_libdir)
2116 ocaml_stdlib="`"$OCAMLFIND" ocamlc -where`"
2117 if test "$LLVM_PREFIX" '<' "$ocaml_stdlib" -a "$ocaml_stdlib" '<' "$LLVM_PREFIX~"
2119 # ocaml stdlib is beneath our prefix; use stdlib
2120 AC_SUBST(OCAML_LIBDIR,$ocaml_stdlib)
2122 # ocaml stdlib is outside our prefix; use libdir/ocaml
2123 AC_SUBST(OCAML_LIBDIR,${prefix}/lib/ocaml)
2128 if test "x$GO" = x ; then
2129 AC_MSG_WARN([--enable-bindings=go specified, but go not found. Try configure GO=/path/to/go])
2130 binding_prereqs_failed=1
2132 if $GO run ${srcdir}/bindings/go/conftest.go ; then
2135 AC_MSG_WARN([--enable-bindings=go specified, but need at least Go 1.2. Try configure GO=/path/to/go])
2136 binding_prereqs_failed=1
2142 if test "$binding_prereqs_failed" = 1 ; then
2143 AC_MSG_ERROR([Prequisites for bindings not satisfied. Fix them or use configure --disable-bindings.])
2146 dnl Determine whether the compiler supports -fvisibility-inlines-hidden.
2147 AC_CXX_USE_VISIBILITY_INLINES_HIDDEN
2149 dnl Determine linker rpath flag
2150 if test "$llvm_cv_link_use_r" = "yes" ; then
2157 dnl Determine linker rdynamic flag
2158 if test "$llvm_cv_link_use_export_dynamic" = "yes" ; then
2159 RDYNAMIC="-rdynamic"
2165 dnl===-----------------------------------------------------------------------===
2167 dnl=== SECTION 10: Specify the output files and generate it
2169 dnl===-----------------------------------------------------------------------===
2171 dnl Configure header files
2172 dnl WARNING: dnl If you add or remove any of the following config headers, then
2173 dnl you MUST also update Makefile so that the variable FilesToConfig
2174 dnl contains the same list of files as AC_CONFIG_HEADERS below. This ensures the
2175 dnl files can be updated automatically when their *.in sources change.
2176 AC_CONFIG_HEADERS([include/llvm/Config/config.h include/llvm/Config/llvm-config.h])
2177 AH_TOP([#ifndef CONFIG_H
2180 /* Exported configuration */
2181 #include "llvm/Config/llvm-config.h"])
2184 AC_CONFIG_FILES([include/llvm/Config/Targets.def])
2185 AC_CONFIG_FILES([include/llvm/Config/AsmPrinters.def])
2186 AC_CONFIG_FILES([include/llvm/Config/AsmParsers.def])
2187 AC_CONFIG_FILES([include/llvm/Config/Disassemblers.def])
2188 AC_CONFIG_HEADERS([include/llvm/Support/DataTypes.h])
2190 dnl Configure the makefile's configuration data
2191 AC_CONFIG_FILES([Makefile.config])
2193 dnl Configure the RPM spec file for LLVM
2194 AC_CONFIG_FILES([llvm.spec])
2196 dnl Configure doxygen's configuration file
2197 AC_CONFIG_FILES([docs/doxygen.cfg])
2199 dnl Configure clang, if present
2200 if test "${clang_src_root}" = ""; then
2201 clang_src_root="$srcdir/tools/clang"
2203 if test -f ${clang_src_root}/README.txt; then
2204 dnl Clang supports build systems which use the multilib libdir suffix.
2205 dnl The autoconf system doesn't support this so stub out that variable.
2206 AC_DEFINE_UNQUOTED(CLANG_LIBDIR_SUFFIX,"",
2207 [Multilib suffix for libdir.])
2209 dnl Use variables to stay under 80 columns.
2210 configh="include/clang/Config/config.h"
2211 doxy="docs/doxygen.cfg"
2212 AC_CONFIG_HEADERS([tools/clang/${configh}:${clang_src_root}/${configh}.in])
2213 AC_CONFIG_FILES([tools/clang/${doxy}:${clang_src_root}/${doxy}.in])
2216 dnl OCaml findlib META file
2217 AC_CONFIG_FILES([bindings/ocaml/llvm/META.llvm])
2219 dnl Add --program-prefix value to Makefile.rules. Already an ARG variable.
2220 test "x$program_prefix" = "xNONE" && program_prefix=""
2221 AC_SUBST([program_prefix])
2224 dnl Do special configuration of Makefiles
2225 AC_CONFIG_COMMANDS([setup],,[llvm_src="${srcdir}"])
2226 AC_CONFIG_MAKEFILE(Makefile)
2227 AC_CONFIG_MAKEFILE(Makefile.common)
2228 AC_CONFIG_MAKEFILE(examples/Makefile)
2229 AC_CONFIG_MAKEFILE(lib/Makefile)
2230 AC_CONFIG_MAKEFILE(test/Makefile)
2231 AC_CONFIG_MAKEFILE(test/Makefile.tests)
2232 AC_CONFIG_MAKEFILE(unittests/Makefile)
2233 AC_CONFIG_MAKEFILE(tools/Makefile)
2234 AC_CONFIG_MAKEFILE(utils/Makefile)
2235 AC_CONFIG_MAKEFILE(projects/Makefile)
2236 AC_CONFIG_MAKEFILE(bindings/Makefile)
2237 AC_CONFIG_MAKEFILE(bindings/ocaml/Makefile.ocaml)
2239 dnl Finally, crank out the output