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}])
137 dnl Configure all of the projects present in our source tree. While we could
138 dnl just AC_CONFIG_SUBDIRS on the set of directories in projects that have a
139 dnl configure script, that usage of the AC_CONFIG_SUBDIRS macro is deprecated.
140 dnl Instead we match on the known projects.
143 dnl One tricky part of doing this is that some projects depend upon other
144 dnl projects. For example, several projects rely upon the LLVM test suite.
145 dnl We want to configure those projects first so that their object trees are
146 dnl created before running the configure scripts of projects that depend upon
150 dnl Several projects use the LLVM test suite, so configure it next.
151 if test -d ${srcdir}/projects/test-suite ; then
152 AC_CONFIG_SUBDIRS([projects/test-suite])
155 dnl llvm-test is the old name of the test-suite, kept here for backwards
157 if test -d ${srcdir}/projects/llvm-test ; then
158 AC_CONFIG_SUBDIRS([projects/llvm-test])
161 dnl Some projects use poolalloc; configure that next
162 if test -d ${srcdir}/projects/poolalloc ; then
163 AC_CONFIG_SUBDIRS([projects/poolalloc])
166 if test -d ${srcdir}/projects/llvm-poolalloc ; then
167 AC_CONFIG_SUBDIRS([projects/llvm-poolalloc])
170 dnl Check for all other projects
171 for i in `ls ${srcdir}/projects`
173 if test -d ${srcdir}/projects/${i} ; then
175 safecode) AC_CONFIG_SUBDIRS([projects/safecode]) ;;
182 AC_MSG_WARN([Unknown project (${i}) won't be configured automatically])
188 dnl Disable the build of polly, even if it is checked out into tools/polly.
190 AS_HELP_STRING([--enable-polly],
191 [Use polly if available (default is YES)]),,
194 yes) AC_SUBST(ENABLE_POLLY,[1]) ;;
195 no) AC_SUBST(ENABLE_POLLY,[0]) ;;
196 default) AC_SUBST(ENABLE_POLLY,[1]) ;;
197 *) AC_MSG_ERROR([Invalid setting for --enable-polly. Use "yes" or "no"]) ;;
201 dnl Check if polly is checked out into tools/polly and configure it if
203 if (test -d ${srcdir}/tools/polly) && (test $ENABLE_POLLY -eq 1) ; then
204 AC_SUBST(LLVM_HAS_POLLY,1)
205 AC_CONFIG_SUBDIRS([tools/polly])
208 dnl===-----------------------------------------------------------------------===
210 dnl=== SECTION 2: Architecture, target, and host checks
212 dnl===-----------------------------------------------------------------------===
214 dnl Check the target for which we're compiling and the host that will do the
215 dnl compilations. This will tell us which LLVM compiler will be used for
216 dnl compiling SSA into object code. This needs to be done early because
217 dnl following tests depend on it.
220 dnl Determine the platform type and cache its value. This helps us configure
221 dnl the System library to the correct build platform.
222 AC_CACHE_CHECK([type of operating system we're going to host on],
226 llvm_cv_link_all_option="-Wl,--whole-archive"
227 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
228 llvm_cv_os_type="AIX"
229 llvm_cv_platform_type="Unix" ;;
231 llvm_cv_link_all_option="-Wl,--whole-archive"
232 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
233 llvm_cv_os_type="IRIX"
234 llvm_cv_platform_type="Unix" ;;
236 llvm_cv_link_all_option="-Wl,--whole-archive"
237 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
238 llvm_cv_os_type="Cygwin"
239 llvm_cv_platform_type="Unix" ;;
241 llvm_cv_link_all_option="-Wl,-all_load"
242 llvm_cv_no_link_all_option="-Wl,-noall_load"
243 llvm_cv_os_type="Darwin"
244 llvm_cv_platform_type="Unix" ;;
246 llvm_cv_link_all_option="-Wl,-all_load"
247 llvm_cv_no_link_all_option="-Wl,-noall_load"
248 llvm_cv_os_type="Minix"
249 llvm_cv_platform_type="Unix" ;;
251 llvm_cv_link_all_option="-Wl,--whole-archive"
252 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
253 llvm_cv_os_type="FreeBSD"
254 llvm_cv_platform_type="Unix" ;;
256 llvm_cv_link_all_option="-Wl,--whole-archive"
257 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
258 llvm_cv_os_type="GNU/kFreeBSD"
259 llvm_cv_platform_type="Unix" ;;
261 llvm_cv_link_all_option="-Wl,--whole-archive"
262 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
263 llvm_cv_os_type="OpenBSD"
264 llvm_cv_platform_type="Unix" ;;
266 llvm_cv_link_all_option="-Wl,--whole-archive"
267 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
268 llvm_cv_os_type="NetBSD"
269 llvm_cv_platform_type="Unix" ;;
271 llvm_cv_link_all_option="-Wl,--whole-archive"
272 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
273 llvm_cv_os_type="DragonFly"
274 llvm_cv_platform_type="Unix" ;;
276 llvm_cv_link_all_option="-Wl,--whole-archive"
277 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
278 llvm_cv_os_type="Bitrig"
279 llvm_cv_platform_type="Unix" ;;
281 llvm_cv_link_all_option="-Wl,--whole-archive"
282 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
283 llvm_cv_os_type="HP-UX"
284 llvm_cv_platform_type="Unix" ;;
286 llvm_cv_link_all_option="-Wl,--whole-archive"
287 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
288 llvm_cv_os_type="Interix"
289 llvm_cv_platform_type="Unix" ;;
291 llvm_cv_link_all_option="-Wl,--whole-archive"
292 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
293 llvm_cv_os_type="Linux"
294 llvm_cv_platform_type="Unix" ;;
296 llvm_cv_link_all_option="-Wl,--whole-archive"
297 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
298 llvm_cv_os_type="GNU"
299 llvm_cv_platform_type="Unix" ;;
301 llvm_cv_link_all_option="-Wl,-z,allextract"
302 llvm_cv_no_link_all_option="-Wl,-z,defaultextract"
303 llvm_cv_os_type="SunOS"
304 llvm_cv_platform_type="Unix" ;;
306 llvm_cv_link_all_option="-Wl,--whole-archive"
307 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
308 llvm_cv_os_type="Win32"
309 llvm_cv_platform_type="Win32" ;;
311 llvm_cv_link_all_option="-Wl,--whole-archive"
312 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
313 llvm_cv_os_type="MingW"
314 llvm_cv_platform_type="Win32" ;;
316 llvm_cv_link_all_option="-Wl,--whole-archive"
317 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
318 llvm_cv_os_type="Haiku"
319 llvm_cv_platform_type="Unix" ;;
321 llvm_cv_link_all_option="-Wl,--whole-archive"
322 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
323 llvm_cv_os_type="Freestanding"
324 llvm_cv_platform_type="Unix" ;;
326 llvm_cv_link_all_option="-Wl,--whole-archive"
327 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
328 llvm_cv_os_type="Freestanding"
329 llvm_cv_platform_type="Unix" ;;
331 llvm_cv_link_all_option=""
332 llvm_cv_no_link_all_option=""
333 llvm_cv_os_type="Unknown"
334 llvm_cv_platform_type="Unknown" ;;
337 AC_CACHE_CHECK([type of operating system we're going to target],
338 [llvm_cv_target_os_type],
341 llvm_cv_target_os_type="AIX" ;;
343 llvm_cv_target_os_type="IRIX" ;;
345 llvm_cv_target_os_type="Cygwin" ;;
347 llvm_cv_target_os_type="Darwin" ;;
349 llvm_cv_target_os_type="Minix" ;;
351 llvm_cv_target_os_type="FreeBSD" ;;
353 llvm_cv_target_os_type="GNU/kFreeBSD" ;;
355 llvm_cv_target_os_type="OpenBSD" ;;
357 llvm_cv_target_os_type="NetBSD" ;;
359 llvm_cv_target_os_type="DragonFly" ;;
361 llvm_cv_target_os_type="Bitrig" ;;
363 llvm_cv_target_os_type="HP-UX" ;;
365 llvm_cv_target_os_type="Interix" ;;
367 llvm_cv_target_os_type="Linux" ;;
369 llvm_cv_target_os_type="GNU" ;;
371 llvm_cv_target_os_type="SunOS" ;;
373 llvm_cv_target_os_type="Win32" ;;
375 llvm_cv_target_os_type="MingW" ;;
377 llvm_cv_target_os_type="Haiku" ;;
379 llvm_cv_target_os_type="RTEMS" ;;
381 llvm_cv_target_os_type="NativeClient" ;;
383 llvm_cv_target_os_type="Freestanding" ;;
385 llvm_cv_target_os_type="PS4" ;;
387 llvm_cv_target_os_type="Unknown" ;;
390 dnl Make sure we aren't attempting to configure for an unknown system
391 if test "$llvm_cv_os_type" = "Unknown" ; then
392 AC_MSG_ERROR([Operating system is unknown, configure can't continue])
395 dnl Set the "OS" Makefile variable based on the platform type so the
396 dnl makefile can configure itself to specific build hosts
397 AC_SUBST(OS,$llvm_cv_os_type)
398 AC_SUBST(HOST_OS,$llvm_cv_os_type)
399 AC_SUBST(TARGET_OS,$llvm_cv_target_os_type)
401 dnl Set the LINKALL and NOLINKALL Makefile variables based on the platform
402 AC_SUBST(LINKALL,$llvm_cv_link_all_option)
403 AC_SUBST(NOLINKALL,$llvm_cv_no_link_all_option)
405 dnl Set the "LLVM_ON_*" variables based on llvm_cv_platform_type
406 dnl This is used by lib/Support to determine the basic kind of implementation
408 case $llvm_cv_platform_type in
410 AC_DEFINE([LLVM_ON_UNIX],[1],[Define if this is Unixish platform])
411 AC_SUBST(LLVM_ON_UNIX,[1])
412 AC_SUBST(LLVM_ON_WIN32,[0])
415 AC_DEFINE([LLVM_ON_WIN32],[1],[Define if this is Win32ish platform])
416 AC_SUBST(LLVM_ON_UNIX,[0])
417 AC_SUBST(LLVM_ON_WIN32,[1])
421 dnl Determine what our target architecture is and configure accordingly.
422 dnl This will allow Makefiles to make a distinction between the hardware and
424 AC_CACHE_CHECK([target architecture],[llvm_cv_target_arch],
426 i?86-*) llvm_cv_target_arch="x86" ;;
427 amd64-* | x86_64-*) llvm_cv_target_arch="x86_64" ;;
428 sparc*-*) llvm_cv_target_arch="Sparc" ;;
429 powerpc*-*) llvm_cv_target_arch="PowerPC" ;;
430 arm64*-*) llvm_cv_target_arch="AArch64" ;;
431 arm*-*) llvm_cv_target_arch="ARM" ;;
432 aarch64*-*) llvm_cv_target_arch="AArch64" ;;
433 mips-* | mips64-*) llvm_cv_target_arch="Mips" ;;
434 mipsel-* | mips64el-*) llvm_cv_target_arch="Mips" ;;
435 xcore-*) llvm_cv_target_arch="XCore" ;;
436 msp430-*) llvm_cv_target_arch="MSP430" ;;
437 hexagon-*) llvm_cv_target_arch="Hexagon" ;;
438 nvptx-*) llvm_cv_target_arch="NVPTX" ;;
439 s390x-*) llvm_cv_target_arch="SystemZ" ;;
440 wasm*-*) llvm_cv_target_arch="WebAssembly" ;;
441 *) llvm_cv_target_arch="Unknown" ;;
444 if test "$llvm_cv_target_arch" = "Unknown" ; then
445 AC_MSG_WARN([Configuring LLVM for an unknown target archicture])
448 dnl Determine the LLVM native architecture for the target
449 case "$llvm_cv_target_arch" in
450 x86) LLVM_NATIVE_ARCH="X86" ;;
451 x86_64) LLVM_NATIVE_ARCH="X86" ;;
452 *) LLVM_NATIVE_ARCH="$llvm_cv_target_arch" ;;
455 dnl Define a substitution, ARCH, for the target architecture
456 AC_SUBST(ARCH,$llvm_cv_target_arch)
457 AC_SUBST(LLVM_NATIVE_ARCH,$LLVM_NATIVE_ARCH)
459 dnl Determine what our host architecture.
460 dnl This will allow MCJIT regress tests runs only for supported
463 i?86-*) host_arch="x86" ;;
464 amd64-* | x86_64-*) host_arch="x86_64" ;;
465 sparc*-*) host_arch="Sparc" ;;
466 powerpc*-*) host_arch="PowerPC" ;;
467 arm64*-*) host_arch="AArch64" ;;
468 arm*-*) host_arch="ARM" ;;
469 aarch64*-*) host_arch="AArch64" ;;
470 mips-* | mips64-*) host_arch="Mips" ;;
471 mipsel-* | mips64el-*) host_arch="Mips" ;;
472 xcore-*) host_arch="XCore" ;;
473 msp430-*) host_arch="MSP430" ;;
474 hexagon-*) host_arch="Hexagon" ;;
475 s390x-*) host_arch="SystemZ" ;;
476 wasm*-*) host_arch="WebAssembly" ;;
477 *) host_arch="Unknown" ;;
480 if test "$host_arch" = "Unknown" ; then
481 AC_MSG_WARN([Configuring LLVM for an unknown host archicture])
484 AC_SUBST(HOST_ARCH,$host_arch)
486 dnl Check for build platform executable suffix if we're cross-compiling
487 if test "$cross_compiling" = yes; then
488 AC_SUBST(LLVM_CROSS_COMPILING, [1])
490 ac_build_prefix=${build_alias}-
491 AC_CHECK_PROG(BUILD_CXX, ${ac_build_prefix}g++, ${ac_build_prefix}g++)
492 if test -z "$BUILD_CXX"; then
493 AC_CHECK_PROG(BUILD_CXX, g++, g++)
494 if test -z "$BUILD_CXX"; then
495 AC_CHECK_PROG(BUILD_CXX, c++, c++, , , /usr/ucb/c++)
499 AC_SUBST(LLVM_CROSS_COMPILING, [0])
502 dnl Check to see if there's a .svn or .git directory indicating that this
503 dnl build is being done from a checkout. This sets up several defaults for
504 dnl the command line switches. When we build with a checkout directory,
505 dnl we get a debug with assertions turned on. Without, we assume a source
506 dnl release and we get an optimized build without assertions.
507 dnl See --enable-optimized and --enable-assertions below
508 if test -d ".svn" -o -d "${srcdir}/.svn" -o -d ".git" -o -d "${srcdir}/.git"; then
511 AC_SUBST(CVSBUILD,[[CVSBUILD=1]])
517 dnl===-----------------------------------------------------------------------===
519 dnl=== SECTION 3: Command line arguments for the configure script.
521 dnl===-----------------------------------------------------------------------===
523 dnl --enable-libcpp : check whether or not to use libc++ on the command line
524 AC_ARG_ENABLE(libcpp,
525 AS_HELP_STRING([--enable-libcpp],
526 [Use libc++ if available (default is NO)]),,
529 yes) AC_SUBST(ENABLE_LIBCPP,[1]) ;;
530 no) AC_SUBST(ENABLE_LIBCPP,[0]) ;;
531 default) AC_SUBST(ENABLE_LIBCPP,[0]);;
532 *) AC_MSG_ERROR([Invalid setting for --enable-libcpp. Use "yes" or "no"]) ;;
535 dnl Check both GCC and Clang for sufficiently modern versions. These checks can
536 dnl be bypassed by passing a flag if necessary on a platform. We have to do
537 dnl these checks here so that we have the configuration of the standard C++
538 dnl library finished.
539 AC_ARG_ENABLE(compiler-version-checks,
540 AS_HELP_STRING([--enable-compiler-version-checks],
541 [Check the version of the host compiler (default is YES)]),,
548 case "$llvm_cv_cxx_compiler" in
550 AC_MSG_CHECKING([whether Clang is new enough])
551 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
552 #if __clang_major__ < 3 || (__clang_major__ == 3 && __clang_minor__ < 1)
553 #error This version of Clang is too old to build LLVM
556 [AC_MSG_RESULT([yes])],
559 The selected Clang compiler is not new enough to build LLVM. Please upgrade to
560 Clang 3.1. You may pass --disable-compiler-version-checks to configure to
561 bypass these sanity checks.])])
563 dnl Note that libstdc++4.6 is known broken for C++11 builds. The errors
564 dnl are sometimes deeply confusing though. Here we test for an obvious
565 dnl incomplete feature in 4.6's standard library that was completed in
566 dnl 4.7's. We also have to disable this test if 'ENABLE_LIBCPP' is set
567 dnl because the enable flags don't actually fix CXXFLAGS, they rely on
568 dnl that happening in the Makefile.
569 if test "$ENABLE_LIBCPP" -eq 0 ; then
570 AC_MSG_CHECKING([whether Clang will select a modern C++ standard library])
571 llvm_cv_old_cxxflags="$CXXFLAGS"
572 CXXFLAGS="$CXXFLAGS -std=c++0x"
573 AC_LINK_IFELSE([AC_LANG_SOURCE([[
575 std::atomic<float> x(0.0f);
576 int main() { return (float)x; }
578 [AC_MSG_RESULT([yes])],
581 We detected a missing feature in the standard C++ library that was known to be
582 missing in libstdc++4.6 and implemented in libstdc++4.7. There are numerous
583 C++11 problems with 4.6's library, and we don't support GCCs or libstdc++ older
584 than 4.7. You will need to update your system and ensure Clang uses the newer
587 If this error is incorrect or you need to force things to work, you may pass
588 '--disable-compiler-version-checks' to configure to bypass this test.])])
589 CXXFLAGS="$llvm_cv_old_cxxflags"
593 AC_MSG_CHECKING([whether GCC is new enough])
594 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
595 #if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 7)
596 #error This version of GCC is too old to build LLVM
599 [AC_MSG_RESULT([yes])],
602 The selected GCC C++ compiler is not new enough to build LLVM. Please upgrade
603 to GCC 4.7. You may pass --disable-compiler-version-checks to configure to
604 bypass these sanity checks.])])
612 AC_MSG_ERROR([Invalid setting for --enable-compiler-version-checks. Use "yes" or "no"])
616 dnl --enable-cxx1y : check whether or not to use -std=c++1y on the command line
618 AS_HELP_STRING([--enable-cxx1y],
619 [Use c++1y if available (default is NO)]),,
622 yes) AC_SUBST(ENABLE_CXX1Y,[1]) ;;
623 no) AC_SUBST(ENABLE_CXX1Y,[0]) ;;
624 default) AC_SUBST(ENABLE_CXX1Y,[0]);;
625 *) AC_MSG_ERROR([Invalid setting for --enable-cxx1y. Use "yes" or "no"]) ;;
628 dnl --enable-split-dwarf : check whether or not to use -gsplit-dwarf on the command
630 AC_ARG_ENABLE(split-dwarf,
631 AS_HELP_STRING([--enable-split-dwarf],
632 [Use split-dwarf if available (default is NO)]),,
635 yes) AC_SUBST(ENABLE_SPLIT_DWARF,[1]) ;;
636 no) AC_SUBST(ENABLE_SPLIT_DWARF,[0]) ;;
637 default) AC_SUBST(ENABLE_SPLIT_DWARF,[0]);;
638 *) AC_MSG_ERROR([Invalid setting for --enable-split-dwarf. Use "yes" or "no"]) ;;
641 dnl --enable-clang-arcmt: check whether to enable clang arcmt
643 AC_ARG_ENABLE(clang-arcmt,
644 AS_HELP_STRING([--enable-clang-arcmt],
645 [Enable building of clang ARCMT (default is YES)]),
646 clang_arcmt="$enableval",
649 yes) AC_SUBST(ENABLE_CLANG_ARCMT,[1]) ;;
650 no) AC_SUBST(ENABLE_CLANG_ARCMT,[0]) ;;
651 default) AC_SUBST(ENABLE_CLANG_ARCMT,[1]);;
652 *) AC_MSG_ERROR([Invalid setting for --enable-clang-arcmt. Use "yes" or "no"]) ;;
655 dnl --enable-clang-plugin-support: check whether to enable plugins in clang
656 clang_plugin_support="yes"
657 AC_ARG_ENABLE(clang-plugin-support,
658 AS_HELP_STRING([--enable-clang-plugin-support],
659 [Enable plugin support in clang (default is YES)]),
660 clang_plugin_support="$enableval",
663 yes) AC_SUBST(CLANG_PLUGIN_SUPPORT,[1]) ;;
664 no) AC_SUBST(CLANG_PLUGIN_SUPPORT,[0]) ;;
665 default) AC_SUBST(CLANG_PLUGIN_SUPPORT,[1]);;
666 *) AC_MSG_ERROR([Invalid setting for --enable-clang-plugin-support. Use "yes" or "no"]) ;;
669 dnl --enable-clang-static-analyzer: check whether to enable static-analyzer
670 clang_static_analyzer="yes"
671 AC_ARG_ENABLE(clang-static-analyzer,
672 AS_HELP_STRING([--enable-clang-static-analyzer],
673 [Enable building of clang Static Analyzer (default is YES)]),
674 clang_static_analyzer="$enableval",
677 yes) AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[1]) ;;
679 if test ${clang_arcmt} != "no" ; then
680 AC_MSG_ERROR([Cannot enable clang ARC Migration Tool while disabling static analyzer.])
682 AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[0])
684 default) AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[1]);;
685 *) AC_MSG_ERROR([Invalid setting for --enable-clang-static-analyzer. Use "yes" or "no"]) ;;
688 dnl --enable-optimized : check whether they want to do an optimized build:
689 AC_ARG_ENABLE(optimized, AS_HELP_STRING(
690 --enable-optimized,[Compile with optimizations enabled (default is NO)]),,enableval=$optimize)
691 if test ${enableval} = "no" ; then
692 AC_SUBST(ENABLE_OPTIMIZED,[[]])
694 AC_SUBST(ENABLE_OPTIMIZED,[[ENABLE_OPTIMIZED=1]])
697 dnl --enable-profiling : check whether they want to do a profile build:
698 AC_ARG_ENABLE(profiling, AS_HELP_STRING(
699 --enable-profiling,[Compile with profiling enabled (default is NO)]),,enableval="no")
700 if test ${enableval} = "no" ; then
701 AC_SUBST(ENABLE_PROFILING,[[]])
703 AC_SUBST(ENABLE_PROFILING,[[ENABLE_PROFILING=1]])
706 dnl --enable-assertions : check whether they want to turn on assertions or not:
707 AC_ARG_ENABLE(assertions,AS_HELP_STRING(
708 --enable-assertions,[Compile with assertion checks enabled (default is YES)]),, enableval="yes")
709 if test ${enableval} = "yes" ; then
710 AC_SUBST(DISABLE_ASSERTIONS,[[]])
711 assertions_enabled="yes"
713 AC_SUBST(DISABLE_ASSERTIONS,[[DISABLE_ASSERTIONS=1]])
714 assertions_enabled="no"
717 dnl --enable-werror : check whether we want Werror on by default
718 AC_ARG_ENABLE(werror,AS_HELP_STRING(
719 --enable-werror,[Compile with -Werror enabled (default is NO)]),, enableval="no")
721 yes) AC_SUBST(ENABLE_WERROR,[1]) ;;
722 no) AC_SUBST(ENABLE_WERROR,[0]) ;;
723 default) AC_SUBST(ENABLE_WERROR,[0]);;
724 *) AC_MSG_ERROR([Invalid setting for --enable-werror. Use "yes" or "no"]) ;;
727 dnl --enable-expensive-checks : check whether they want to turn on expensive debug checks:
728 AC_ARG_ENABLE(expensive-checks,AS_HELP_STRING(
729 --enable-expensive-checks,[Compile with expensive debug checks enabled (default is NO)]),, enableval="no")
730 if test ${enableval} = "yes" ; then
731 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[ENABLE_EXPENSIVE_CHECKS=1]])
732 AC_SUBST(EXPENSIVE_CHECKS,[[yes]])
734 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[]])
735 AC_SUBST(EXPENSIVE_CHECKS,[[no]])
738 dnl --enable-abi-breaking-checks : decide whether we should compile in asserts and
739 dnl checks that make the build ABI incompatible with an llvm built without these
741 AC_ARG_ENABLE(abi-breaking-checks,AS_HELP_STRING(
742 --enable-abi-breaking-checks,[Compile with abi-breaking asserts support (default is with-asserts)]),, enableval="with-asserts")
744 with-asserts) if test ${assertions_enabled} = "yes" ; then
745 AC_DEFINE([LLVM_ENABLE_ABI_BREAKING_CHECKS],[1],[Define to enable checks that alter the LLVM C++ ABI])
746 AC_SUBST(ENABLE_ABI_BREAKING_CHECKS,[1])
748 AC_SUBST(ENABLE_ABI_BREAKING_CHECKS,[0])
751 AC_DEFINE([LLVM_ENABLE_ABI_BREAKING_CHECKS],[1],[Define to enable checks that alter the LLVM C++ ABI])
752 AC_SUBST(ENABLE_ABI_BREAKING_CHECKS,[1])
755 AC_SUBST(ENABLE_ABI_BREAKING_CHECKS,[0])
757 *) AC_MSG_ERROR([Invalid setting for --enable-abi-breaking-checks. Use "with-asserts", "yes" or "no"])
760 dnl --enable-debug-runtime : should runtime libraries have debug symbols?
761 AC_ARG_ENABLE(debug-runtime,
762 AS_HELP_STRING(--enable-debug-runtime,[Build runtime libs with debug symbols (default is NO)]),,enableval=no)
763 if test ${enableval} = "no" ; then
764 AC_SUBST(DEBUG_RUNTIME,[[]])
766 AC_SUBST(DEBUG_RUNTIME,[[DEBUG_RUNTIME=1]])
769 dnl --enable-debug-symbols : should even optimized compiler libraries
770 dnl have debug symbols?
771 AC_ARG_ENABLE(debug-symbols,
772 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)
773 if test ${enableval} = "no" ; then
774 AC_SUBST(DEBUG_SYMBOLS,[[]])
776 AC_SUBST(DEBUG_SYMBOLS,[[DEBUG_SYMBOLS=1]])
779 dnl --enable-keep-symbols : do not strip installed executables
780 AC_ARG_ENABLE(keep-symbols,
781 AS_HELP_STRING(--enable-keep-symbols,[Do not strip installed executables)]),,enableval=no)
782 if test ${enableval} = "no" ; then
783 AC_SUBST(KEEP_SYMBOLS,[[]])
785 AC_SUBST(KEEP_SYMBOLS,[[KEEP_SYMBOLS=1]])
788 dnl --enable-jit: check whether they want to enable the jit
790 AS_HELP_STRING(--enable-jit,
791 [Enable Just In Time Compiling (default is YES)]),,
793 if test ${enableval} = "no"
797 case "$llvm_cv_target_arch" in
798 x86) AC_SUBST(TARGET_HAS_JIT,1) ;;
799 Sparc) AC_SUBST(TARGET_HAS_JIT,0) ;;
800 PowerPC) AC_SUBST(TARGET_HAS_JIT,1) ;;
801 x86_64) AC_SUBST(TARGET_HAS_JIT,1) ;;
802 ARM) AC_SUBST(TARGET_HAS_JIT,1) ;;
803 Mips) AC_SUBST(TARGET_HAS_JIT,1) ;;
804 XCore) AC_SUBST(TARGET_HAS_JIT,0) ;;
805 MSP430) AC_SUBST(TARGET_HAS_JIT,0) ;;
806 Hexagon) AC_SUBST(TARGET_HAS_JIT,0) ;;
807 NVPTX) AC_SUBST(TARGET_HAS_JIT,0) ;;
808 SystemZ) AC_SUBST(TARGET_HAS_JIT,1) ;;
809 WebAssembly) AC_SUBST(TARGET_HAS_JIT,0) ;;
810 *) AC_SUBST(TARGET_HAS_JIT,0) ;;
814 TARGETS_WITH_JIT="ARM AArch64 Mips PowerPC SystemZ X86"
815 AC_SUBST(TARGETS_WITH_JIT,$TARGETS_WITH_JIT)
817 dnl Allow enablement of building and installing docs
819 AS_HELP_STRING([--enable-docs],
820 [Build documents (default is YES)]),,
823 yes) AC_SUBST(ENABLE_DOCS,[1]) ;;
824 no) AC_SUBST(ENABLE_DOCS,[0]) ;;
825 default) AC_SUBST(ENABLE_DOCS,[1]) ;;
826 *) AC_MSG_ERROR([Invalid setting for --enable-docs. Use "yes" or "no"]) ;;
829 dnl Allow enablement of doxygen generated documentation
830 AC_ARG_ENABLE(doxygen,
831 AS_HELP_STRING([--enable-doxygen],
832 [Build doxygen documentation (default is NO)]),,
835 yes) AC_SUBST(ENABLE_DOXYGEN,[1]) ;;
836 no|default) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
837 *) AC_MSG_ERROR([Invalid setting for --enable-doxygen. Use "yes" or "no"]) ;;
840 dnl Allow enablement of doxygen search engine
841 AC_ARG_ENABLE(doxygen-search,
842 AS_HELP_STRING([--enable-doxygen-search],
843 [Enable doxygen search support (default is NO)]),,
845 ENABLE_DOXYGEN_SEARCH="$enableval"
849 *) AC_MSG_ERROR([Invalid setting for --enable-doxygen-search. Use "yes" or "no"]) ;;
852 AC_ARG_ENABLE(doxygen-external-search,
853 AS_HELP_STRING([--enable-doxygen-external-search],
854 [Enable doxygen exteranl search (default is NO)]),,
856 ENABLE_DOXYGEN_EXTERNAL_SEARCH="$enableval"
860 dnl To match with the CMake behavior, enable doxygen when
861 dnl --enable-doxygen-external-search is enabled.
862 case "$ENABLE_DOXYGEN_SEARCH" in
863 yes|default) ENABLE_DOXYGEN_SEARCH="yes" ;;
864 no) AC_MSG_ERROR([The option --enable-doxygen-external-search requires --enable-doxygen-search]) ;;
868 *) AC_MSG_ERROR([Invalid setting for --enable-doxygen-external-search. Use "yes" or "no"]) ;;
871 AC_ARG_WITH(doxygen-search-engine-url,
872 AS_HELP_STRING([--with-doxygen-search-engine-url],
873 [Specify the external search engine for doxygen]),,)
874 WITH_DOXYGEN_SEARCH_ENGINE_URL="$withval"
876 AC_ARG_WITH(doxygen-search-mappings,
877 AS_HELP_STRING([--with-doxygen-search-mappings],
878 [Specify the extra search mapping for doxygen]),,)
879 WITH_DOXYGEN_SEARCH_MAPPINGS="$withval"
881 case "$ENABLE_DOXYGEN_SEARCH" in
883 if test "$ENABLE_DOXYGEN" = "0" ; then
884 AC_MSG_ERROR([The option --enable-doxygen-search requires --enable-doxygen.])
887 AC_SUBST(enable_searchengine,[YES])
889 case "$ENABLE_DOXYGEN_EXTERNAL_SEARCH" in
891 AC_SUBST(enable_external_search,[YES])
892 AC_SUBST(enable_server_based_search,[YES])
893 AC_SUBST(searchengine_url,["$WITH_DOXYGEN_SEARCH_ENGINE_URL"])
894 AC_SUBST(extra_search_mappings,["$WITH_DOXYGEN_SEARCH_MAPPINGS"])
898 AC_SUBST(enable_external_search,[NO])
899 AC_SUBST(enable_server_based_search,[NO])
900 AC_SUBST(searchengine_url,[])
901 AC_SUBST(extra_search_mappings,[])
907 AC_SUBST(enable_searchengine,[NO])
908 AC_SUBST(searchengine_url,[])
909 AC_SUBST(enable_server_based_search,[NO])
910 AC_SUBST(enable_external_search,[NO])
911 AC_SUBST(extra_search_mappings,[])
915 AC_MSG_ERROR([Invalid setting for --enable-doxygen-search. Use "yes" or "no"])
919 dnl Allow enablement of doxygen generated Qt help files
920 AC_ARG_ENABLE(doxygen-qt-help,
921 AS_HELP_STRING([--enable-doxygen-qt-help],
922 [Build Qt help files (default is NO)]),,
926 if test "$ENABLE_DOXYGEN" = "0" ; then
927 AC_MSG_ERROR([The option --enable-doxygen-qt-help requires --enable-doxygen.])
930 AC_PATH_PROG(QHELPGENERATOR, [qhelpgenerator], [qhelpgenerator])
932 dnl Qt help file for llvm doxygen documentation
933 AC_SUBST(llvm_doxygen_generate_qhp,[YES])
934 AC_SUBST(llvm_doxygen_qch_filename,[org.llvm.qch])
935 AC_SUBST(llvm_doxygen_qhp_namespace,[org.llvm])
936 AC_SUBST(llvm_doxygen_qhelpgenerator_path,["$QHELPGENERATOR"])
937 AC_SUBST(llvm_doxygen_qhp_cust_filter_name,["$PACKAGE_STRING"])
938 AC_SUBST(llvm_doxygen_qhp_cust_filter_attrs,["$PACKAGE_NAME,$PACKAGE_VERSION"])
940 dnl Qt help file for clang doxygen documentation
941 AC_SUBST(clang_doxygen_generate_qhp,[YES])
942 AC_SUBST(clang_doxygen_qch_filename,[org.llvm.clang.qch])
943 AC_SUBST(clang_doxygen_qhp_namespace,[org.llvm.clang])
944 AC_SUBST(clang_doxygen_qhelpgenerator_path,["$QHELPGENERATOR"])
945 AC_SUBST(clang_doxygen_qhp_cust_filter_name,["Clang $PACKAGE_VERSION"])
946 AC_SUBST(clang_doxygen_qhp_cust_filter_attrs,["Clang,$PACKAGE_VERSION"])
950 AC_SUBST(llvm_doxygen_generate_qhp,[NO])
951 AC_SUBST(llvm_doxygen_qch_filename,[])
952 AC_SUBST(llvm_doxygen_qhp_namespace,[])
953 AC_SUBST(llvm_doxygen_qhelpgenerator_path,[])
954 AC_SUBST(llvm_doxygen_qhp_cust_filter_name,[])
955 AC_SUBST(llvm_doxygen_qhp_cust_filter_attrs,[])
957 AC_SUBST(clang_doxygen_generate_qhp,[NO])
958 AC_SUBST(clang_doxygen_qch_filename,[])
959 AC_SUBST(clang_doxygen_qhp_namespace,[])
960 AC_SUBST(clang_doxygen_qhelpgenerator_path,[])
961 AC_SUBST(clang_doxygen_qhp_cust_filter_name,["Clang $PACKAGE_VERSION"])
962 AC_SUBST(clang_doxygen_qhp_cust_filter_attrs,["Clang,$PACKAGE_VERSION"])
966 AC_MSG_ERROR([Invalid setting for --enable-doxygen-qt-help. Use "yes" or "no"]) ;;
969 dnl Allow disablement of threads
970 AC_ARG_ENABLE(threads,
971 AS_HELP_STRING([--enable-threads],
972 [Use threads if available (default is YES)]),,
975 yes) AC_SUBST(LLVM_ENABLE_THREADS,[1]) ;;
976 no) AC_SUBST(LLVM_ENABLE_THREADS,[0]) ;;
977 default) AC_SUBST(LLVM_ENABLE_THREADS,[1]) ;;
978 *) AC_MSG_ERROR([Invalid setting for --enable-threads. Use "yes" or "no"]) ;;
980 AC_DEFINE_UNQUOTED([LLVM_ENABLE_THREADS],$LLVM_ENABLE_THREADS,
981 [Define if threads enabled])
983 dnl Allow disablement of pthread.h
984 AC_ARG_ENABLE(pthreads,
985 AS_HELP_STRING([--enable-pthreads],
986 [Use pthreads if available (default is YES)]),,
989 yes) AC_SUBST(ENABLE_PTHREADS,[1]) ;;
990 no) AC_SUBST(ENABLE_PTHREADS,[0]) ;;
991 default) AC_SUBST(ENABLE_PTHREADS,[1]) ;;
992 *) AC_MSG_ERROR([Invalid setting for --enable-pthreads. Use "yes" or "no"]) ;;
995 dnl Allow disablement of zlib
997 AS_HELP_STRING([--enable-zlib],
998 [Use zlib for compression/decompression if
999 available (default is YES)]),,
1001 case "$enableval" in
1002 yes) AC_SUBST(LLVM_ENABLE_ZLIB,[1]) ;;
1003 no) AC_SUBST(LLVM_ENABLE_ZLIB,[0]) ;;
1004 default) AC_SUBST(LLVM_ENABLE_ZLIB,[1]) ;;
1005 *) AC_MSG_ERROR([Invalid setting for --enable-zlib. Use "yes" or "no"]) ;;
1007 AC_DEFINE_UNQUOTED([LLVM_ENABLE_ZLIB],$LLVM_ENABLE_ZLIB,
1008 [Define if zlib is enabled])
1010 dnl Allow building without position independent code
1012 AS_HELP_STRING([--enable-pic],
1013 [Build LLVM with Position Independent Code (default is YES)]),,
1015 case "$enableval" in
1016 yes) AC_SUBST(ENABLE_PIC,[1]) ;;
1017 no) AC_SUBST(ENABLE_PIC,[0]) ;;
1018 default) AC_SUBST(ENABLE_PIC,[1]) ;;
1019 *) AC_MSG_ERROR([Invalid setting for --enable-pic. Use "yes" or "no"]) ;;
1021 AC_DEFINE_UNQUOTED([ENABLE_PIC],$ENABLE_PIC,
1022 [Define if position independent code is enabled])
1024 dnl Allow building a shared library and linking tools against it.
1025 AC_ARG_ENABLE(shared,
1026 AS_HELP_STRING([--enable-shared],
1027 [Build a shared library and link tools against it (default is NO)]),,
1029 case "$enableval" in
1030 yes) AC_SUBST(ENABLE_SHARED,[1]) ;;
1031 no) AC_SUBST(ENABLE_SHARED,[0]) ;;
1032 default) AC_SUBST(ENABLE_SHARED,[0]) ;;
1033 *) AC_MSG_ERROR([Invalid setting for --enable-shared. Use "yes" or "no"]) ;;
1036 dnl Allow libstdc++ is embedded in LLVM.dll.
1037 AC_ARG_ENABLE(embed-stdcxx,
1038 AS_HELP_STRING([--enable-embed-stdcxx],
1039 [Build a shared library with embedded libstdc++ for Win32 DLL (default is NO)]),,
1041 case "$enableval" in
1042 yes) AC_SUBST(ENABLE_EMBED_STDCXX,[1]) ;;
1043 no) AC_SUBST(ENABLE_EMBED_STDCXX,[0]) ;;
1044 default) AC_SUBST(ENABLE_EMBED_STDCXX,[0]) ;;
1045 *) AC_MSG_ERROR([Invalid setting for --enable-embed-stdcxx. Use "yes" or "no"]) ;;
1048 dnl Enable embedding timestamp information into build.
1049 AC_ARG_ENABLE(timestamps,
1050 AS_HELP_STRING([--enable-timestamps],
1051 [Enable embedding timestamp information in build (default is YES)]),,
1053 case "$enableval" in
1054 yes) AC_SUBST(ENABLE_TIMESTAMPS,[1]) ;;
1055 no) AC_SUBST(ENABLE_TIMESTAMPS,[0]) ;;
1056 default) AC_SUBST(ENABLE_TIMESTAMPS,[1]) ;;
1057 *) AC_MSG_ERROR([Invalid setting for --enable-timestamps. Use "yes" or "no"]) ;;
1059 AC_DEFINE_UNQUOTED([ENABLE_TIMESTAMPS],$ENABLE_TIMESTAMPS,
1060 [Define if timestamp information (e.g., __DATE__) is allowed])
1062 dnl Enable support for showing backtraces.
1063 AC_ARG_ENABLE(backtraces, AS_HELP_STRING(
1064 [--enable-backtraces],
1065 [Enable embedding backtraces on crash (default is YES)]),
1066 [case "$enableval" in
1067 yes) llvm_cv_enable_backtraces="yes" ;;
1068 no) llvm_cv_enable_backtraces="no" ;;
1069 *) AC_MSG_ERROR([Invalid setting for --enable-backtraces. Use "yes" or "no"]) ;;
1071 llvm_cv_enable_backtraces="yes")
1072 if test "$llvm_cv_enable_backtraces" = "yes" ; then
1073 AC_DEFINE([ENABLE_BACKTRACES],[1],
1074 [Define if you want backtraces on crash])
1077 dnl Enable installing platform specific signal handling overrides, for improved
1078 dnl CrashRecovery support or interaction with crash reporting software. This
1079 dnl support may be inappropriate for some clients embedding LLVM as a library.
1080 AC_ARG_ENABLE(crash-overrides, AS_HELP_STRING(
1081 [--enable-crash-overrides],
1082 [Enable crash handling overrides (default is YES)]),
1083 [case "$enableval" in
1084 yes) llvm_cv_enable_crash_overrides="yes" ;;
1085 no) llvm_cv_enable_crash_overrides="no" ;;
1086 *) AC_MSG_ERROR([Invalid setting for --enable-crash-overrides. Use "yes" or "no"]) ;;
1088 llvm_cv_enable_crash_overrides="yes")
1089 if test "$llvm_cv_enable_crash_overrides" = "yes" ; then
1090 AC_DEFINE([ENABLE_CRASH_OVERRIDES],[1],
1091 [Define to enable crash handling overrides])
1094 dnl List all possible targets
1095 ALL_TARGETS="X86 Sparc PowerPC ARM AArch64 Mips XCore MSP430 CppBackend NVPTX Hexagon SystemZ AMDGPU BPF"
1096 AC_SUBST(ALL_TARGETS,$ALL_TARGETS)
1098 dnl Allow specific targets to be specified for building (or not)
1100 AC_ARG_ENABLE([targets],AS_HELP_STRING([--enable-targets],
1101 [Build specific host targets: all or target1,target2,... Valid targets are:
1102 host, x86, x86_64, sparc, powerpc, arm64, arm, aarch64, mips, hexagon,
1103 xcore, msp430, nvptx, systemz, r600, bpf, wasm, and cpp (default=all)]),,
1105 if test "$enableval" = host-only ; then
1108 case "$enableval" in
1109 all) TARGETS_TO_BUILD="$ALL_TARGETS" ;;
1110 *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
1112 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
1113 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
1114 sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
1115 powerpc) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
1116 aarch64) TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
1117 arm64) TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
1118 arm) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
1119 bpf) TARGETS_TO_BUILD="BPF $TARGETS_TO_BUILD" ;;
1120 mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
1121 mipsel) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
1122 mips64) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
1123 mips64el) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
1124 xcore) TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
1125 msp430) TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;;
1126 cpp) TARGETS_TO_BUILD="CppBackend $TARGETS_TO_BUILD" ;;
1127 hexagon) TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;;
1128 nvptx) TARGETS_TO_BUILD="NVPTX $TARGETS_TO_BUILD" ;;
1129 systemz) TARGETS_TO_BUILD="SystemZ $TARGETS_TO_BUILD" ;;
1130 amdgpu) TARGETS_TO_BUILD="AMDGPU $TARGETS_TO_BUILD" ;;
1131 r600) TARGETS_TO_BUILD="AMDGPU $TARGETS_TO_BUILD" ;;
1132 wasm) TARGETS_TO_BUILD="WebAssembly $TARGETS_TO_BUILD" ;;
1133 host) case "$llvm_cv_target_arch" in
1134 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
1135 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
1136 Sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
1137 PowerPC) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
1138 AArch64) TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
1139 ARM) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
1140 Mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
1141 XCore) TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
1142 MSP430) TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;;
1143 Hexagon) TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;;
1144 NVPTX) TARGETS_TO_BUILD="NVPTX $TARGETS_TO_BUILD" ;;
1145 SystemZ) TARGETS_TO_BUILD="SystemZ $TARGETS_TO_BUILD" ;;
1146 WebAssembly) TARGETS_TO_BUILD="WebAssembly $TARGETS_TO_BUILD" ;;
1147 *) AC_MSG_ERROR([Can not set target to build]) ;;
1149 *) AC_MSG_ERROR([Unrecognized target $a_target]) ;;
1155 AC_ARG_ENABLE([experimental-targets],AS_HELP_STRING([--enable-experimental-targets],
1156 [Build experimental host targets: disable or target1,target2,...
1157 (default=disable)]),,
1160 if test ${enableval} != "disable"
1162 TARGETS_TO_BUILD="$enableval $TARGETS_TO_BUILD"
1165 AC_SUBST(TARGETS_TO_BUILD,$TARGETS_TO_BUILD)
1167 dnl Determine whether we are building LLVM support for the native architecture.
1168 dnl If so, define LLVM_NATIVE_ARCH to that LLVM target.
1169 for a_target in $TARGETS_TO_BUILD; do
1170 if test "$a_target" = "$LLVM_NATIVE_ARCH"; then
1171 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ARCH, $LLVM_NATIVE_ARCH,
1172 [LLVM architecture name for the native architecture, if available])
1173 LLVM_NATIVE_TARGET="LLVMInitialize${LLVM_NATIVE_ARCH}Target"
1174 LLVM_NATIVE_TARGETINFO="LLVMInitialize${LLVM_NATIVE_ARCH}TargetInfo"
1175 LLVM_NATIVE_TARGETMC="LLVMInitialize${LLVM_NATIVE_ARCH}TargetMC"
1176 LLVM_NATIVE_ASMPRINTER="LLVMInitialize${LLVM_NATIVE_ARCH}AsmPrinter"
1177 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/Makefile ; then
1178 LLVM_NATIVE_ASMPARSER="LLVMInitialize${LLVM_NATIVE_ARCH}AsmParser"
1180 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/Makefile ; then
1181 LLVM_NATIVE_DISASSEMBLER="LLVMInitialize${LLVM_NATIVE_ARCH}Disassembler"
1183 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGET, $LLVM_NATIVE_TARGET,
1184 [LLVM name for the native Target init function, if available])
1185 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGETINFO, $LLVM_NATIVE_TARGETINFO,
1186 [LLVM name for the native TargetInfo init function, if available])
1187 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGETMC, $LLVM_NATIVE_TARGETMC,
1188 [LLVM name for the native target MC init function, if available])
1189 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ASMPRINTER, $LLVM_NATIVE_ASMPRINTER,
1190 [LLVM name for the native AsmPrinter init function, if available])
1191 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/Makefile ; then
1192 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ASMPARSER, $LLVM_NATIVE_ASMPARSER,
1193 [LLVM name for the native AsmParser init function, if available])
1195 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/Makefile ; then
1196 AC_DEFINE_UNQUOTED(LLVM_NATIVE_DISASSEMBLER, $LLVM_NATIVE_DISASSEMBLER,
1197 [LLVM name for the native Disassembler init function, if available])
1202 dnl Build the LLVM_TARGET and LLVM_... macros for Targets.def and the individual
1203 dnl target feature def files.
1204 LLVM_ENUM_TARGETS=""
1205 LLVM_ENUM_ASM_PRINTERS=""
1206 LLVM_ENUM_ASM_PARSERS=""
1207 LLVM_ENUM_DISASSEMBLERS=""
1208 for target_to_build in $TARGETS_TO_BUILD; do
1209 LLVM_ENUM_TARGETS="LLVM_TARGET($target_to_build) $LLVM_ENUM_TARGETS"
1210 if test -f ${srcdir}/lib/Target/${target_to_build}/*AsmPrinter.cpp ; then
1211 LLVM_ENUM_ASM_PRINTERS="LLVM_ASM_PRINTER($target_to_build) $LLVM_ENUM_ASM_PRINTERS";
1213 if test -f ${srcdir}/lib/Target/${target_to_build}/AsmParser/Makefile ; then
1214 LLVM_ENUM_ASM_PARSERS="LLVM_ASM_PARSER($target_to_build) $LLVM_ENUM_ASM_PARSERS";
1216 if test -f ${srcdir}/lib/Target/${target_to_build}/Disassembler/Makefile ; then
1217 LLVM_ENUM_DISASSEMBLERS="LLVM_DISASSEMBLER($target_to_build) $LLVM_ENUM_DISASSEMBLERS";
1220 AC_SUBST(LLVM_ENUM_TARGETS)
1221 AC_SUBST(LLVM_ENUM_ASM_PRINTERS)
1222 AC_SUBST(LLVM_ENUM_ASM_PARSERS)
1223 AC_SUBST(LLVM_ENUM_DISASSEMBLERS)
1225 dnl Override the option to use for optimized builds.
1226 AC_ARG_WITH(optimize-option,
1227 AS_HELP_STRING([--with-optimize-option],
1228 [Select the compiler options to use for optimized builds]),,
1230 AC_MSG_CHECKING([optimization flags])
1233 case "$llvm_cv_os_type" in
1234 FreeBSD) optimize_option=-O2 ;;
1235 MingW) optimize_option=-O2 ;;
1236 *) optimize_option=-O3 ;;
1238 *) optimize_option="$withval" ;;
1240 AC_SUBST(OPTIMIZE_OPTION,$optimize_option)
1241 AC_MSG_RESULT([$optimize_option])
1243 dnl Specify extra build options
1244 AC_ARG_WITH(extra-options,
1245 AS_HELP_STRING([--with-extra-options],
1246 [Specify additional options to compile LLVM with]),,
1249 default) EXTRA_OPTIONS= ;;
1250 *) EXTRA_OPTIONS=$withval ;;
1252 AC_SUBST(EXTRA_OPTIONS,$EXTRA_OPTIONS)
1254 dnl Specify extra linker build options
1255 AC_ARG_WITH(extra-ld-options,
1256 AS_HELP_STRING([--with-extra-ld-options],
1257 [Specify additional options to link LLVM with]),,
1260 default) EXTRA_LD_OPTIONS= ;;
1261 *) EXTRA_LD_OPTIONS=$withval ;;
1263 AC_SUBST(EXTRA_LD_OPTIONS,$EXTRA_LD_OPTIONS)
1265 dnl Allow specific bindings to be specified for building (or not)
1266 AC_ARG_ENABLE([bindings],AS_HELP_STRING([--enable-bindings],
1267 [Build specific language bindings: all,auto,none,{binding-name} (default=auto)]),,
1269 BINDINGS_TO_BUILD=""
1270 case "$enableval" in
1271 yes | default | auto) BINDINGS_TO_BUILD="auto" ;;
1272 all ) BINDINGS_TO_BUILD="ocaml" ;;
1273 none | no) BINDINGS_TO_BUILD="" ;;
1274 *)for a_binding in `echo $enableval|sed -e 's/,/ /g' ` ; do
1275 case "$a_binding" in
1276 ocaml) BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD" ;;
1277 *) AC_MSG_ERROR([Unrecognized binding $a_binding]) ;;
1283 dnl Allow the ocaml libdir to be overridden. This could go in a configure
1284 dnl script for bindings/ocaml/configure, except that its auto value depends on
1285 dnl OCAMLC, which is found here to support tests.
1286 AC_ARG_WITH([ocaml-libdir],
1287 [AS_HELP_STRING([--with-ocaml-libdir],
1288 [Specify install location for ocaml bindings (default is stdlib)])],
1292 auto) with_ocaml_libdir="$withval" ;;
1293 /* | [[A-Za-z]]:[[\\/]]*) with_ocaml_libdir="$withval" ;;
1294 *) AC_MSG_ERROR([Invalid path for --with-ocaml-libdir. Provide full path]) ;;
1297 AC_ARG_WITH(clang-srcdir,
1298 AS_HELP_STRING([--with-clang-srcdir],
1299 [Directory to the out-of-tree Clang source]),,
1302 -) clang_src_root="" ;;
1303 /* | [[A-Za-z]]:[[\\/]]*) clang_src_root="$withval" ;;
1304 *) clang_src_root="$ac_pwd/$withval" ;;
1306 AC_SUBST(CLANG_SRC_ROOT,[$clang_src_root])
1308 AC_ARG_WITH(clang-resource-dir,
1309 AS_HELP_STRING([--with-clang-resource-dir],
1310 [Relative directory from the Clang binary for resource files]),,
1312 AC_DEFINE_UNQUOTED(CLANG_RESOURCE_DIR,"$withval",
1313 [Relative directory for resource files])
1315 AC_ARG_WITH(c-include-dirs,
1316 AS_HELP_STRING([--with-c-include-dirs],
1317 [Colon separated list of directories clang will search for headers]),,
1319 AC_DEFINE_UNQUOTED(C_INCLUDE_DIRS,"$withval",
1320 [Directories clang will search for headers])
1322 # Clang normally uses the system c++ headers and libraries. With this option,
1323 # clang will use the ones provided by a gcc installation instead. This option should
1324 # be passed the same value that was used with --prefix when configuring gcc.
1325 AC_ARG_WITH(gcc-toolchain,
1326 AS_HELP_STRING([--with-gcc-toolchain],
1327 [Directory where gcc is installed.]),,
1329 AC_DEFINE_UNQUOTED(GCC_INSTALL_PREFIX,"$withval",
1330 [Directory where gcc is installed.])
1332 AC_ARG_WITH(default-sysroot,
1333 AS_HELP_STRING([--with-default-sysroot],
1334 [Add --sysroot=<path> to all compiler invocations.]),,
1336 AC_DEFINE_UNQUOTED(DEFAULT_SYSROOT,"$withval",
1337 [Default <path> to all compiler invocations for --sysroot=<path>.])
1339 AC_ARG_WITH(clang-default-openmp-runtime,
1340 AS_HELP_STRING([--with-clang-default-openmp-runtime],
1341 [The default OpenMP runtime for Clang.]),,
1343 AC_DEFINE_UNQUOTED(CLANG_DEFAULT_OPENMP_RUNTIME,"$withval",
1344 [Default OpenMP runtime used by -fopenmp.])
1346 dnl Allow linking of LLVM with GPLv3 binutils code.
1347 AC_ARG_WITH(binutils-include,
1348 AS_HELP_STRING([--with-binutils-include],
1349 [Specify path to binutils/include/ containing plugin-api.h file for gold plugin.]),,
1352 default) WITH_BINUTILS_INCDIR=default ;;
1353 /* | [[A-Za-z]]:[[\\/]]*) WITH_BINUTILS_INCDIR=$withval ;;
1354 *) AC_MSG_ERROR([Invalid path for --with-binutils-include. Provide full path]) ;;
1356 if test "x$WITH_BINUTILS_INCDIR" != xdefault ; then
1357 AC_SUBST(BINUTILS_INCDIR,$WITH_BINUTILS_INCDIR)
1358 if test ! -f "$WITH_BINUTILS_INCDIR/plugin-api.h"; then
1359 echo "$WITH_BINUTILS_INCDIR/plugin-api.h"
1360 AC_MSG_ERROR([Invalid path to directory containing plugin-api.h.]);
1364 dnl Specify the URL where bug reports should be submitted.
1365 AC_ARG_WITH(bug-report-url,
1366 AS_HELP_STRING([--with-bug-report-url],
1367 [Specify the URL where bug reports should be submitted (default=http://llvm.org/bugs/)]),,
1368 withval="http://llvm.org/bugs/")
1369 AC_DEFINE_UNQUOTED(BUG_REPORT_URL,"$withval",
1372 dnl --enable-terminfo: check whether the user wants to control use of terminfo:
1373 AC_ARG_ENABLE(terminfo,AS_HELP_STRING(
1374 [--enable-terminfo],
1375 [Query the terminfo database if available (default is YES)]),
1376 [case "$enableval" in
1377 yes) llvm_cv_enable_terminfo="yes" ;;
1378 no) llvm_cv_enable_terminfo="no" ;;
1379 *) AC_MSG_ERROR([Invalid setting for --enable-terminfo. Use "yes" or "no"]) ;;
1381 llvm_cv_enable_terminfo="yes")
1382 case "$llvm_cv_enable_terminfo" in
1383 yes) AC_SUBST(ENABLE_TERMINFO,[1]) ;;
1384 no) AC_SUBST(ENABLE_TERMINFO,[0]) ;;
1387 dnl --enable-libedit: check whether the user wants to turn off libedit.
1388 AC_ARG_ENABLE(libedit,AS_HELP_STRING(
1390 [Use libedit if available (default is YES)]),
1391 [case "$enableval" in
1392 yes) llvm_cv_enable_libedit="yes" ;;
1393 no) llvm_cv_enable_libedit="no" ;;
1394 *) AC_MSG_ERROR([Invalid setting for --enable-libedit. Use "yes" or "no"]) ;;
1396 llvm_cv_enable_libedit="yes")
1398 dnl --enable-libffi : check whether the user wants to turn off libffi:
1399 AC_ARG_ENABLE(libffi,AS_HELP_STRING(
1400 --enable-libffi,[Check for the presence of libffi (default is NO)]),
1401 [case "$enableval" in
1402 yes) llvm_cv_enable_libffi="yes" ;;
1403 no) llvm_cv_enable_libffi="no" ;;
1404 *) AC_MSG_ERROR([Invalid setting for --enable-libffi. Use "yes" or "no"]) ;;
1406 llvm_cv_enable_libffi=no)
1408 AC_ARG_WITH(internal-prefix,
1409 AS_HELP_STRING([--with-internal-prefix],
1410 [Installation directory for internal files]),,
1412 AC_SUBST(INTERNAL_PREFIX,[$withval])
1414 dnl===-----------------------------------------------------------------------===
1416 dnl=== SECTION 4: Check for programs we need and that they are the right version
1418 dnl===-----------------------------------------------------------------------===
1420 dnl Check for the tools that the makefiles require
1423 AC_PATH_PROG(NM, [nm], [nm])
1424 AC_PATH_PROG(CMP, [cmp], [cmp])
1425 AC_PATH_PROG(CP, [cp], [cp])
1426 AC_PATH_PROG(DATE, [date], [date])
1427 AC_PATH_PROG(FIND, [find], [find])
1428 AC_PATH_PROG(GREP, [grep], [grep])
1429 AC_PATH_PROG(MKDIR,[mkdir],[mkdir])
1430 AC_PATH_PROG(MV, [mv], [mv])
1432 AC_CHECK_TOOL(AR, ar, false)
1433 AC_PATH_PROG(RM, [rm], [rm])
1434 AC_PATH_PROG(SED, [sed], [sed])
1435 AC_PATH_PROG(TAR, [tar], [gtar])
1436 AC_PATH_PROG(BINPWD,[pwd], [pwd])
1438 dnl Looking for misc. graph plotting software
1439 AC_PATH_PROG(DOT, [dot], [echo dot])
1440 if test "$DOT" != "echo dot" ; then
1441 AC_DEFINE([HAVE_DOT],[1],[Define if the dot program is available])
1442 dnl If we're targeting for mingw we should emit windows paths, not msys
1443 if test "$llvm_cv_os_type" = "MingW" ; then
1444 DOT=`echo $DOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1446 AC_DEFINE_UNQUOTED([LLVM_PATH_DOT],"$DOT${EXEEXT}",
1447 [Define to path to dot program if found or 'echo dot' otherwise])
1450 dnl Find the install program
1452 dnl Prepend src dir to install path dir if it's a relative path
1453 dnl This is a hack for installs that take place in something other
1454 dnl than the top level.
1456 [[\\/$]]* | ?:[[\\/]]* ) ;;
1457 *) INSTALL="\\\$(TOPSRCDIR)/$INSTALL" ;;
1460 dnl Checks for documentation and testing tools that we can do without. If these
1461 dnl are not found then they are set to "true" which always succeeds but does
1462 dnl nothing. This just lets the build output show that we could have done
1463 dnl something if the tool was available.
1464 AC_PATH_PROG(BZIP2, [bzip2])
1465 AC_PATH_PROG(CAT, [cat])
1466 AC_PATH_PROG(DOXYGEN, [doxygen])
1467 AC_PATH_PROG(GROFF, [groff])
1468 AC_PATH_PROG(GZIPBIN, [gzip])
1469 AC_PATH_PROG(PDFROFF, [pdfroff])
1470 AC_PATH_PROG(ZIP, [zip])
1471 AC_PATH_PROG(GO, [go])
1472 AC_PATH_PROGS(OCAMLFIND, [ocamlfind])
1473 AC_PATH_PROGS(GAS, [gas as])
1475 dnl Get the version of the linker in use.
1478 dnl Determine whether the linker supports the -R option.
1481 dnl Determine whether the compiler supports the -rdynamic option.
1482 AC_LINK_EXPORT_DYNAMIC
1484 dnl Determine whether the linker supports the --version-script option.
1485 AC_LINK_VERSION_SCRIPT
1487 AC_CHECK_HEADERS([errno.h])
1489 case "$llvm_cv_os_type" in
1490 Cygwin|MingW|Win32) llvm_shlib_ext=.dll ;;
1491 Darwin) llvm_shlib_ext=.dylib ;;
1492 *) llvm_shlib_ext=.so ;;
1495 AC_DEFINE_UNQUOTED([LTDL_SHLIB_EXT], ["$llvm_shlib_ext"], [The shared library extension])
1497 AC_MSG_CHECKING([tool compatibility])
1499 dnl Ensure that compilation tools are GCC or a GNU compatible compiler such as
1500 dnl ICC; we use GCC specific options in the makefiles so the compiler needs
1501 dnl to support those options.
1502 dnl "icc" emits gcc signatures
1503 dnl "icc -no-gcc" emits no gcc signature BUT is still compatible
1515 if test "$GCC" != "yes" && test "$ICC" != "yes"
1517 AC_MSG_ERROR([gcc|icc required but not found])
1520 dnl Ensure that compilation tools are compatible with GCC extensions
1521 if test "$GXX" != "yes" && test "$IXX" != "yes"
1523 AC_MSG_ERROR([g++|clang++|icc required but not found])
1526 dnl Verify that GCC is version 3.0 or higher
1527 if test "$GCC" = "yes"
1532 #if !defined(__GNUC__) || __GNUC__ < 3
1533 #error Unsupported GCC version
1537 [], [AC_MSG_ERROR([gcc 3.x required, but you have a lower version])])
1540 dnl Check for GNU Make. We use its extensions, so don't build without it
1541 if test -z "$llvm_cv_gnu_make_command"
1543 AC_MSG_ERROR([GNU Make required but not found])
1546 dnl Tool compatibility is okay if we make it here.
1549 dnl Check optional compiler flags.
1550 AC_MSG_CHECKING([optional compiler flags])
1551 CXX_FLAG_CHECK(NO_VARIADIC_MACROS, [-Wno-variadic-macros])
1552 CXX_FLAG_CHECK(NO_MISSING_FIELD_INITIALIZERS, [-Wno-missing-field-initializers])
1553 CXX_FLAG_CHECK(COVERED_SWITCH_DEFAULT, [-Wcovered-switch-default])
1555 dnl GCC's potential uninitialized use analysis is weak and presents lots of
1556 dnl false positives, so disable it.
1558 NO_MAYBE_UNINITIALIZED=
1559 if test "$GXX" = "yes"
1561 CXX_FLAG_CHECK(NO_MAYBE_UNINITIALIZED, [-Wno-maybe-uninitialized])
1562 dnl gcc 4.7 introduced -Wmaybe-uninitialized to distinguish cases which are
1563 dnl known to be uninitialized from cases which might be uninitialized. We
1564 dnl still want to catch the first kind of errors.
1565 if test -z "$NO_MAYBE_UNINITIALIZED"
1567 CXX_FLAG_CHECK(NO_UNINITIALIZED, [-Wno-uninitialized])
1571 dnl Check for misbehaving -Wcomment (gcc-4.7 has this) and maybe add
1572 dnl -Wno-comment to the flags.
1574 llvm_cv_old_cxxflags="$CXXFLAGS"
1575 CXXFLAGS="$CXXFLAGS -Wcomment -Werror"
1578 AC_LANG_SOURCE([[// Comment \o\
1580 int main() { return 0; }
1584 no_comment=-Wno-comment
1587 AC_SUBST(NO_COMMENT, [$no_comment])
1588 CXXFLAGS="$llvm_cv_old_cxxflags"
1590 AC_MSG_RESULT([$NO_VARIADIC_MACROS $NO_MISSING_FIELD_INITIALIZERS $COVERED_SWITCH_DEFAULT $NO_UNINITIALIZED $NO_MAYBE_UNINITIALIZED $NO_COMMENT])
1592 AC_ARG_WITH([python],
1593 [AS_HELP_STRING([--with-python], [path to python])],
1594 [PYTHON="$withval"])
1596 if test -n "$PYTHON" && test -x "$PYTHON" ; then
1597 AC_MSG_CHECKING([for python])
1598 AC_MSG_RESULT([user defined: $with_python])
1600 if test -n "$PYTHON" ; then
1601 AC_MSG_WARN([specified python ($PYTHON) is not usable, searching path])
1604 AC_PATH_PROG([PYTHON], [python python2 python27],
1605 [AC_MSG_RESULT([not found])
1606 AC_MSG_ERROR([could not find python 2.7 or higher])])
1609 AC_MSG_CHECKING([for python >= 2.7])
1610 ac_python_version=`$PYTHON -V 2>&1 | cut -d' ' -f2`
1611 ac_python_version_major=`echo $ac_python_version | cut -d'.' -f1`
1612 ac_python_version_minor=`echo $ac_python_version | cut -d'.' -f2`
1613 ac_python_version_patch=`echo $ac_python_version | cut -d'.' -f3`
1614 if test "$ac_python_version_major" -gt "2" || \
1615 (test "$ac_python_version_major" -eq "2" && \
1616 test "$ac_python_version_minor" -ge "7") ; then
1617 AC_MSG_RESULT([$PYTHON ($ac_python_version)])
1619 AC_MSG_RESULT([not found])
1620 AC_MSG_FAILURE([found python $ac_python_version ($PYTHON); required >= 2.7])
1623 dnl===-----------------------------------------------------------------------===
1625 dnl=== SECTION 5: Check for libraries
1627 dnl===-----------------------------------------------------------------------===
1630 if test "$llvm_cv_os_type" = "MingW" ; then
1631 AC_CHECK_LIB(ole32, main)
1632 AC_CHECK_LIB(psapi, main)
1633 AC_CHECK_LIB(shell32, main)
1636 dnl dlopen() is required for plugin support.
1637 AC_SEARCH_LIBS(dlopen,dl,LLVM_DEFINE_SUBST([HAVE_DLOPEN],[1],
1638 [Define if dlopen() is available on this platform.]),
1639 AC_MSG_WARN([dlopen() not found - disabling plugin support]))
1641 dnl Search for the clock_gettime() function. Note that we rely on the POSIX
1642 dnl macros to detect whether clock_gettime is available, this just finds the
1643 dnl right libraries to link with.
1644 AC_SEARCH_LIBS(clock_gettime,rt)
1646 dnl The curses library is optional; used for querying terminal info
1647 if test "$llvm_cv_enable_terminfo" = "yes" ; then
1648 dnl We need the has_color functionality in curses for it to be useful.
1649 AC_SEARCH_LIBS(setupterm,tinfo terminfo curses ncurses ncursesw,
1650 LLVM_DEFINE_SUBST([HAVE_TERMINFO],[1],
1651 [Define if the setupterm() function is supported this platform.]))
1654 dnl The libedit library is optional; used by lib/LineEditor
1655 if test "$llvm_cv_enable_libedit" = "yes" ; then
1656 AC_SEARCH_LIBS(el_init,edit,
1657 AC_DEFINE([HAVE_LIBEDIT],[1],
1658 [Define if libedit is available on this platform.]))
1661 dnl libffi is optional; used to call external functions from the interpreter
1662 if test "$llvm_cv_enable_libffi" = "yes" ; then
1663 AC_SEARCH_LIBS(ffi_call,ffi,AC_DEFINE([HAVE_FFI_CALL],[1],
1664 [Define if libffi is available on this platform.]),
1665 AC_MSG_ERROR([libffi not found - configure without --enable-libffi to compile without it]))
1668 dnl mallinfo is optional; the code can compile (minus features) without it
1669 AC_SEARCH_LIBS(mallinfo,malloc,AC_DEFINE([HAVE_MALLINFO],[1],
1670 [Define if mallinfo() is available on this platform.]))
1672 dnl pthread locking functions are optional - but llvm will not be thread-safe
1674 if test "$LLVM_ENABLE_THREADS" -eq 1 && test "$ENABLE_PTHREADS" -eq 1 ; then
1675 AC_CHECK_LIB(pthread, pthread_mutex_init)
1676 AC_SEARCH_LIBS(pthread_mutex_lock,pthread,
1677 AC_DEFINE([HAVE_PTHREAD_MUTEX_LOCK],[1],
1678 [Have pthread_mutex_lock]))
1679 AC_SEARCH_LIBS(pthread_rwlock_init,pthread,
1680 AC_DEFINE([HAVE_PTHREAD_RWLOCK_INIT],[1],
1681 [Have pthread_rwlock_init]))
1682 AC_SEARCH_LIBS(pthread_getspecific,pthread,
1683 AC_DEFINE([HAVE_PTHREAD_GETSPECIFIC],[1],
1684 [Have pthread_getspecific]))
1687 dnl zlib is optional; used for compression/uncompression
1688 if test "$LLVM_ENABLE_ZLIB" -eq 1 ; then
1689 AC_CHECK_LIB(z, compress2)
1692 dnl Allow OProfile support for JIT output.
1693 AC_ARG_WITH(oprofile,
1694 AS_HELP_STRING([--with-oprofile=<prefix>],
1695 [Tell OProfile >= 0.9.4 how to symbolize JIT output]),
1697 AC_SUBST(USE_OPROFILE, [1])
1699 /usr|yes) llvm_cv_oppath=/usr/lib/oprofile ;;
1701 AC_SUBST(USE_OPROFILE, [0]) ;;
1702 *) llvm_cv_oppath="${withval}/lib/oprofile"
1703 CPPFLAGS="-I${withval}/include";;
1705 case $llvm_cv_os_type in
1707 if test -n "$llvm_cv_oppath" ; then
1708 LIBS="$LIBS -lopagent -L${llvm_cv_oppath} -Wl,-rpath,${llvm_cv_oppath}"
1709 dnl Work around http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=537744:
1710 dnl libbfd is not included properly in libopagent in some Debian
1711 dnl versions. If libbfd isn't found at all, we assume opagent works
1713 AC_SEARCH_LIBS(bfd_init, bfd, [], [])
1714 AC_SEARCH_LIBS(op_open_agent, opagent, [], [
1715 echo "Error! You need to have libopagent around."
1718 AC_CHECK_HEADER([opagent.h], [], [
1719 echo "Error! You need to have opagent.h around."
1724 AC_MSG_ERROR([OProfile support is available on Linux only.]) ;;
1728 AC_SUBST(USE_OPROFILE, [0])
1730 AC_DEFINE_UNQUOTED([LLVM_USE_OPROFILE],$USE_OPROFILE,
1731 [Define if we have the oprofile JIT-support library])
1733 dnl Enable support for Intel JIT Events API.
1734 AC_ARG_WITH(intel-jitevents,
1735 AS_HELP_STRING([--with-intel-jitevents Notify Intel JIT profiling API of generated code]),
1738 yes) AC_SUBST(USE_INTEL_JITEVENTS,[1]);;
1739 no) AC_SUBST(USE_INTEL_JITEVENTS,[0]);;
1740 *) AC_MSG_ERROR([Invalid setting for --with-intel-jitevents. Use "yes" or "no"]);;
1743 case $llvm_cv_os_type in
1744 Linux|Win32|Cygwin|MingW) ;;
1745 *) AC_MSG_ERROR([Intel JIT API support is available on Linux and Windows only.]);;
1748 case "$llvm_cv_target_arch" in
1750 *) AC_MSG_ERROR([Target architecture $llvm_cv_target_arch does not support Intel JIT Events API.]);;
1754 AC_SUBST(USE_INTEL_JITEVENTS, [0])
1756 AC_DEFINE_UNQUOTED([LLVM_USE_INTEL_JITEVENTS],$USE_INTEL_JITEVENTS,
1757 [Define if we have the Intel JIT API runtime support library])
1759 dnl Check for libxml2
1760 dnl Right now we're just checking for the existence, we could also check for a
1761 dnl particular version via --version on xml2-config
1762 AC_CHECK_PROGS(XML2CONFIG, xml2-config)
1764 AC_MSG_CHECKING(for libxml2 includes)
1765 if test "x$XML2CONFIG" = "x"; then
1766 AC_MSG_RESULT(xml2-config not found)
1768 LIBXML2_INC=`$XML2CONFIG --cflags`
1769 AC_MSG_RESULT($LIBXML2_INC)
1770 AC_CHECK_LIB(xml2, xmlReadFile,[AC_DEFINE([CLANG_HAVE_LIBXML],1,[Define if we have libxml2])
1771 LIBXML2_LIBS="-lxml2"])
1773 AC_SUBST(LIBXML2_LIBS)
1774 AC_SUBST(LIBXML2_INC)
1776 dnl===-----------------------------------------------------------------------===
1778 dnl=== SECTION 6: Check for header files
1780 dnl===-----------------------------------------------------------------------===
1782 dnl First, use autoconf provided macros for specific headers that we need
1783 dnl We don't check for ancient stuff or things that are guaranteed to be there
1784 dnl by the C++ standard. We always use the <cfoo> versions of <foo.h> C headers.
1785 dnl Generally we're looking for POSIX headers.
1787 AC_HEADER_MMAP_ANONYMOUS
1793 dnl size_t must be defined before including cxxabi.h on FreeBSD 10.0.
1794 AC_CHECK_HEADERS([cxxabi.h], [], [],
1795 [#include <stddef.h>
1799 AC_CHECK_HEADERS([dlfcn.h execinfo.h fcntl.h inttypes.h link.h])
1800 AC_CHECK_HEADERS([malloc.h setjmp.h signal.h stdint.h termios.h unistd.h])
1801 AC_CHECK_HEADERS([utime.h])
1802 AC_CHECK_HEADERS([sys/mman.h sys/param.h sys/resource.h sys/time.h sys/uio.h])
1803 AC_CHECK_HEADERS([sys/ioctl.h malloc/malloc.h mach/mach.h])
1804 AC_CHECK_HEADERS([valgrind/valgrind.h])
1805 AC_CHECK_HEADERS([fenv.h])
1806 AC_CHECK_DECLS([FE_ALL_EXCEPT, FE_INEXACT], [], [], [[#include <fenv.h>]])
1807 if test "$LLVM_ENABLE_THREADS" -eq 1 && test "$ENABLE_PTHREADS" -eq 1 ; then
1808 AC_CHECK_HEADERS(pthread.h,
1809 AC_SUBST(HAVE_PTHREAD, 1),
1810 AC_SUBST(HAVE_PTHREAD, 0))
1812 AC_SUBST(HAVE_PTHREAD, 0)
1814 if test "$LLVM_ENABLE_ZLIB" -eq 1 ; then
1815 AC_CHECK_HEADERS(zlib.h,
1816 AC_SUBST(HAVE_LIBZ, 1),
1817 AC_SUBST(HAVE_LIBZ, 0))
1819 AC_SUBST(HAVE_LIBZ, 0)
1822 dnl Try to find ffi.h.
1823 if test "$llvm_cv_enable_libffi" = "yes" ; then
1824 AC_CHECK_HEADERS([ffi.h ffi/ffi.h])
1827 dnl Try to find Darwin specific crash reporting libraries.
1828 AC_CHECK_HEADERS([CrashReporterClient.h])
1830 dnl Try to find Darwin specific crash reporting global.
1831 AC_MSG_CHECKING([__crashreporter_info__])
1835 extern const char *__crashreporter_info__;
1837 __crashreporter_info__ = "test";
1843 AC_MSG_RESULT([yes])
1844 AC_DEFINE([HAVE_CRASHREPORTER_INFO], [1], [can use __crashreporter_info__])
1848 AC_DEFINE([HAVE_CRASHREPORTER_INFO], [0], [can use __crashreporter_info__])
1851 dnl===-----------------------------------------------------------------------===
1853 dnl=== SECTION 7: Check for types and structures
1855 dnl===-----------------------------------------------------------------------===
1860 AC_DEFINE_UNQUOTED([RETSIGTYPE],[void],[Define as the return type of signal handlers (`int' or `void').])
1862 AC_CHECK_TYPES([int64_t],,AC_MSG_ERROR([Type int64_t required but not found]))
1863 AC_CHECK_TYPES([uint64_t],,
1864 AC_CHECK_TYPES([u_int64_t],,
1865 AC_MSG_ERROR([Type uint64_t or u_int64_t required but not found])))
1867 dnl===-----------------------------------------------------------------------===
1869 dnl=== SECTION 8: Check for specific functions needed
1871 dnl===-----------------------------------------------------------------------===
1873 AC_CHECK_FUNCS([backtrace getcwd ])
1874 AC_CHECK_FUNCS([getpagesize getrusage getrlimit setrlimit gettimeofday ])
1875 AC_CHECK_FUNCS([isatty mkdtemp mkstemp ])
1876 AC_CHECK_FUNCS([mktemp posix_spawn pread realpath sbrk setrlimit ])
1877 AC_CHECK_FUNCS([strerror strerror_r setenv ])
1878 AC_CHECK_FUNCS([strtoll strtoq sysconf malloc_zone_statistics ])
1879 AC_CHECK_FUNCS([setjmp longjmp sigsetjmp siglongjmp writev])
1880 AC_CHECK_FUNCS([futimes futimens])
1884 dnl Check for arc4random accessible via AC_INCLUDES_DEFAULT.
1885 AC_CHECK_DECLS([arc4random])
1887 dnl Check the declaration "Secure API" on Windows environments.
1888 AC_CHECK_DECLS([strerror_s])
1890 dnl Check symbols in libgcc.a for JIT on Mingw.
1891 if test "$llvm_cv_os_type" = "MingW" ; then
1892 AC_CHECK_LIB(gcc,_alloca,AC_DEFINE([HAVE__ALLOCA],[1],[Have host's _alloca]))
1893 AC_CHECK_LIB(gcc,__alloca,AC_DEFINE([HAVE___ALLOCA],[1],[Have host's __alloca]))
1894 AC_CHECK_LIB(gcc,__chkstk,AC_DEFINE([HAVE___CHKSTK],[1],[Have host's __chkstk]))
1895 AC_CHECK_LIB(gcc,__chkstk_ms,AC_DEFINE([HAVE___CHKSTK_MS],[1],[Have host's __chkstk_ms]))
1896 AC_CHECK_LIB(gcc,___chkstk,AC_DEFINE([HAVE____CHKSTK],[1],[Have host's ___chkstk]))
1897 AC_CHECK_LIB(gcc,___chkstk_ms,AC_DEFINE([HAVE____CHKSTK_MS],[1],[Have host's ___chkstk_ms]))
1899 AC_CHECK_LIB(gcc,__ashldi3,AC_DEFINE([HAVE___ASHLDI3],[1],[Have host's __ashldi3]))
1900 AC_CHECK_LIB(gcc,__ashrdi3,AC_DEFINE([HAVE___ASHRDI3],[1],[Have host's __ashrdi3]))
1901 AC_CHECK_LIB(gcc,__divdi3,AC_DEFINE([HAVE___DIVDI3],[1],[Have host's __divdi3]))
1902 AC_CHECK_LIB(gcc,__fixdfdi,AC_DEFINE([HAVE___FIXDFDI],[1],[Have host's __fixdfdi]))
1903 AC_CHECK_LIB(gcc,__fixsfdi,AC_DEFINE([HAVE___FIXSFDI],[1],[Have host's __fixsfdi]))
1904 AC_CHECK_LIB(gcc,__floatdidf,AC_DEFINE([HAVE___FLOATDIDF],[1],[Have host's __floatdidf]))
1905 AC_CHECK_LIB(gcc,__lshrdi3,AC_DEFINE([HAVE___LSHRDI3],[1],[Have host's __lshrdi3]))
1906 AC_CHECK_LIB(gcc,__moddi3,AC_DEFINE([HAVE___MODDI3],[1],[Have host's __moddi3]))
1907 AC_CHECK_LIB(gcc,__udivdi3,AC_DEFINE([HAVE___UDIVDI3],[1],[Have host's __udivdi3]))
1908 AC_CHECK_LIB(gcc,__umoddi3,AC_DEFINE([HAVE___UMODDI3],[1],[Have host's __umoddi3]))
1910 AC_CHECK_LIB(gcc,__main,AC_DEFINE([HAVE___MAIN],[1],[Have host's __main]))
1911 AC_CHECK_LIB(gcc,__cmpdi2,AC_DEFINE([HAVE___CMPDI2],[1],[Have host's __cmpdi2]))
1914 dnl Check Win32 API EnumerateLoadedModules.
1915 if test "$llvm_cv_os_type" = "MingW" ; then
1916 AC_MSG_CHECKING([whether EnumerateLoadedModules() accepts new decl])
1920 #include <windows.h>
1921 #include <imagehlp.h>
1922 extern void foo(PENUMLOADED_MODULES_CALLBACK);
1923 extern void foo(BOOL(CALLBACK*)(PCSTR,ULONG_PTR,ULONG,PVOID));
1927 AC_MSG_RESULT([yes])
1928 llvm_cv_win32_elmcb_pcstr="PCSTR"
1932 llvm_cv_win32_elmcb_pcstr="PSTR"
1934 AC_DEFINE_UNQUOTED([WIN32_ELMCB_PCSTR],$llvm_cv_win32_elmcb_pcstr,[Type of 1st arg on ELM Callback])
1937 dnl Check for mmap support.We also need to know if /dev/zero is required to
1938 dnl be opened for allocating RWX memory.
1939 dnl Make sure we aren't attempting to configure for an unknown system
1940 if test "$llvm_cv_platform_type" = "Unix" ; then
1943 AC_NEED_DEV_ZERO_FOR_MMAP
1945 if test "$ac_cv_func_mmap_fixed_mapped" = "no"
1947 AC_MSG_WARN([mmap() of a fixed address required but not supported])
1949 if test "$ac_cv_func_mmap_file" = "no"
1951 AC_MSG_WARN([mmap() of files required but not found])
1955 dnl atomic builtins are required for threading support.
1956 AC_MSG_CHECKING(for GCC atomic builtins)
1957 dnl Since we'll be using these atomic builtins in C++ files we should test
1958 dnl the C++ compiler.
1964 volatile unsigned long val = 1;
1965 __sync_synchronize();
1966 __sync_val_compare_and_swap(&val, 1, 0);
1967 __sync_add_and_fetch(&val, 1);
1968 __sync_sub_and_fetch(&val, 1);
1974 AC_MSG_RESULT([yes])
1975 AC_DEFINE([LLVM_HAS_ATOMICS], [1], [Has gcc/MSVC atomic intrinsics])
1979 AC_DEFINE([LLVM_HAS_ATOMICS], [0], [Has gcc/MSVC atomic intrinsics])
1980 AC_MSG_WARN([LLVM will be built thread-unsafe because atomic builtins are missing])
1984 dnl===-----------------------------------------------------------------------===
1986 dnl=== SECTION 9: Additional checks, variables, etc.
1988 dnl===-----------------------------------------------------------------------===
1990 dnl Handle 32-bit linux systems running a 64-bit kernel.
1991 dnl This has to come after section 4 because it invokes the compiler.
1992 if test "$llvm_cv_os_type" = "Linux" -a "$llvm_cv_target_arch" = "x86_64" ; then
1994 if test "$llvm_cv_linux_mixed" = "yes"; then
1995 llvm_cv_target_arch="x86"
2000 dnl Check whether __dso_handle is present
2001 AC_CHECK_FUNCS([__dso_handle])
2003 dnl Propagate the shared library extension that the libltdl checks did to
2004 dnl the Makefiles so we can use it there too
2005 AC_SUBST(SHLIBEXT,$llvm_shlib_ext)
2007 dnl Translate the various configuration directories and other basic
2008 dnl information into substitutions that will end up in Makefile.config.in
2009 dnl that these configured values can be used by the makefiles
2010 if test "${prefix}" = "NONE" ; then
2013 eval LLVM_PREFIX="${prefix}";
2014 eval LLVM_BINDIR="${prefix}/bin";
2015 eval LLVM_DATADIR="${prefix}/share/llvm";
2016 eval LLVM_DOCSDIR="${prefix}/share/doc/llvm";
2017 eval LLVM_ETCDIR="${prefix}/etc/llvm";
2018 eval LLVM_INCLUDEDIR="${prefix}/include";
2019 eval LLVM_INFODIR="${prefix}/info";
2020 eval LLVM_MANDIR="${prefix}/man";
2021 LLVM_CONFIGTIME=`date`
2022 AC_SUBST(LLVM_PREFIX)
2023 AC_SUBST(LLVM_BINDIR)
2024 AC_SUBST(LLVM_DATADIR)
2025 AC_SUBST(LLVM_DOCSDIR)
2026 AC_SUBST(LLVM_ETCDIR)
2027 AC_SUBST(LLVM_INCLUDEDIR)
2028 AC_SUBST(LLVM_INFODIR)
2029 AC_SUBST(LLVM_MANDIR)
2030 AC_SUBST(LLVM_CONFIGTIME)
2032 dnl Disable embedding timestamps in the build directory, with ENABLE_TIMESTAMPS.
2033 if test "${ENABLE_TIMESTAMPS}" = "0"; then
2034 LLVM_CONFIGTIME="(timestamp not enabled)"
2037 dnl Place the various directories into the config.h file as #defines so that we
2038 dnl can know about the installation paths within LLVM.
2039 AC_DEFINE_UNQUOTED(LLVM_PREFIX,"$LLVM_PREFIX",
2040 [Installation prefix directory])
2041 AC_DEFINE_UNQUOTED(LLVM_BINDIR, "$LLVM_BINDIR",
2042 [Installation directory for binary executables])
2043 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DATADIR",
2044 [Installation directory for data files])
2045 AC_DEFINE_UNQUOTED(LLVM_DOCSDIR, "$LLVM_DOCSDIR",
2046 [Installation directory for documentation])
2047 AC_DEFINE_UNQUOTED(LLVM_ETCDIR, "$LLVM_ETCDIR",
2048 [Installation directory for config files])
2049 AC_DEFINE_UNQUOTED(LLVM_INCLUDEDIR, "$LLVM_INCLUDEDIR",
2050 [Installation directory for include files])
2051 AC_DEFINE_UNQUOTED(LLVM_INFODIR, "$LLVM_INFODIR",
2052 [Installation directory for .info files])
2053 AC_DEFINE_UNQUOTED(LLVM_MANDIR, "$LLVM_MANDIR",
2054 [Installation directory for man pages])
2055 AC_DEFINE_UNQUOTED(LLVM_CONFIGTIME, "$LLVM_CONFIGTIME",
2056 [Time at which LLVM was configured])
2057 AC_DEFINE_UNQUOTED(LLVM_HOST_TRIPLE, "$host",
2058 [Host triple LLVM will be executed on])
2059 AC_DEFINE_UNQUOTED(LLVM_DEFAULT_TARGET_TRIPLE, "$target",
2060 [Target triple LLVM will generate code for by default])
2062 dnl Determine which bindings to build.
2063 if test "$BINDINGS_TO_BUILD" = auto ; then
2064 BINDINGS_TO_BUILD=""
2065 if test "x$OCAMLFIND" != x ; then
2066 BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD"
2068 if test "x$GO" != x ; then
2069 if $GO run ${srcdir}/bindings/go/conftest.go ; then
2070 BINDINGS_TO_BUILD="go $BINDINGS_TO_BUILD"
2074 AC_SUBST(BINDINGS_TO_BUILD,$BINDINGS_TO_BUILD)
2076 dnl Do any work necessary to ensure that bindings have what they need.
2077 binding_prereqs_failed=0
2078 for a_binding in $BINDINGS_TO_BUILD ; do
2079 case "$a_binding" in
2081 if test "x$OCAMLFIND" = x ; then
2082 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlfind not found. Try configure OCAMLFIND=/path/to/ocamlfind])
2083 binding_prereqs_failed=1
2086 if $OCAMLFIND opt -version >/dev/null 2>/dev/null ; then
2091 AC_SUBST(HAVE_OCAMLOPT)
2093 if ! $OCAMLFIND query ctypes >/dev/null 2>/dev/null; then
2094 AC_MSG_WARN([--enable-bindings=ocaml specified, but ctypes is not installed])
2095 binding_prereqs_failed=1
2098 if $OCAMLFIND query oUnit >/dev/null 2>/dev/null; then
2102 AC_MSG_WARN([--enable-bindings=ocaml specified, but OUnit 2 is not installed. Tests will not run])
2103 dnl oUnit is optional!
2105 AC_SUBST(HAVE_OCAML_OUNIT)
2107 if test "x$with_ocaml_libdir" != xauto ; then
2108 AC_SUBST(OCAML_LIBDIR,$with_ocaml_libdir)
2110 ocaml_stdlib="`"$OCAMLFIND" ocamlc -where`"
2111 if test "$LLVM_PREFIX" '<' "$ocaml_stdlib" -a "$ocaml_stdlib" '<' "$LLVM_PREFIX~"
2113 # ocaml stdlib is beneath our prefix; use stdlib
2114 AC_SUBST(OCAML_LIBDIR,$ocaml_stdlib)
2116 # ocaml stdlib is outside our prefix; use libdir/ocaml
2117 AC_SUBST(OCAML_LIBDIR,${prefix}/lib/ocaml)
2122 if test "x$GO" = x ; then
2123 AC_MSG_WARN([--enable-bindings=go specified, but go not found. Try configure GO=/path/to/go])
2124 binding_prereqs_failed=1
2126 if $GO run ${srcdir}/bindings/go/conftest.go ; then
2129 AC_MSG_WARN([--enable-bindings=go specified, but need at least Go 1.2. Try configure GO=/path/to/go])
2130 binding_prereqs_failed=1
2136 if test "$binding_prereqs_failed" = 1 ; then
2137 AC_MSG_ERROR([Prequisites for bindings not satisfied. Fix them or use configure --disable-bindings.])
2140 dnl Determine whether the compiler supports -fvisibility-inlines-hidden.
2141 AC_CXX_USE_VISIBILITY_INLINES_HIDDEN
2143 dnl Determine linker rpath flag
2144 if test "$llvm_cv_link_use_r" = "yes" ; then
2151 dnl Determine linker rdynamic flag
2152 if test "$llvm_cv_link_use_export_dynamic" = "yes" ; then
2153 RDYNAMIC="-rdynamic"
2159 dnl===-----------------------------------------------------------------------===
2161 dnl=== SECTION 10: Specify the output files and generate it
2163 dnl===-----------------------------------------------------------------------===
2165 dnl Configure header files
2166 dnl WARNING: dnl If you add or remove any of the following config headers, then
2167 dnl you MUST also update Makefile so that the variable FilesToConfig
2168 dnl contains the same list of files as AC_CONFIG_HEADERS below. This ensures the
2169 dnl files can be updated automatically when their *.in sources change.
2170 AC_CONFIG_HEADERS([include/llvm/Config/config.h include/llvm/Config/llvm-config.h])
2171 AH_TOP([#ifndef CONFIG_H
2174 /* Exported configuration */
2175 #include "llvm/Config/llvm-config.h"])
2178 AC_CONFIG_FILES([include/llvm/Config/Targets.def])
2179 AC_CONFIG_FILES([include/llvm/Config/AsmPrinters.def])
2180 AC_CONFIG_FILES([include/llvm/Config/AsmParsers.def])
2181 AC_CONFIG_FILES([include/llvm/Config/Disassemblers.def])
2182 AC_CONFIG_HEADERS([include/llvm/Support/DataTypes.h])
2184 dnl Configure the makefile's configuration data
2185 AC_CONFIG_FILES([Makefile.config])
2187 dnl Configure the RPM spec file for LLVM
2188 AC_CONFIG_FILES([llvm.spec])
2190 dnl Configure doxygen's configuration file
2191 AC_CONFIG_FILES([docs/doxygen.cfg])
2193 dnl Configure clang, if present
2194 if test "${clang_src_root}" = ""; then
2195 clang_src_root="$srcdir/tools/clang"
2197 if test -f ${clang_src_root}/README.txt; then
2198 dnl Clang supports build systems which use the multilib libdir suffix.
2199 dnl The autoconf system doesn't support this so stub out that variable.
2200 AC_DEFINE_UNQUOTED(CLANG_LIBDIR_SUFFIX,"",
2201 [Multilib suffix for libdir.])
2203 dnl Use variables to stay under 80 columns.
2204 configh="include/clang/Config/config.h"
2205 doxy="docs/doxygen.cfg"
2206 AC_CONFIG_HEADERS([tools/clang/${configh}:${clang_src_root}/${configh}.in])
2207 AC_CONFIG_FILES([tools/clang/${doxy}:${clang_src_root}/${doxy}.in])
2210 dnl OCaml findlib META file
2211 AC_CONFIG_FILES([bindings/ocaml/llvm/META.llvm])
2213 dnl Add --program-prefix value to Makefile.rules. Already an ARG variable.
2214 test "x$program_prefix" = "xNONE" && program_prefix=""
2215 AC_SUBST([program_prefix])
2218 dnl Do special configuration of Makefiles
2219 AC_CONFIG_COMMANDS([setup],,[llvm_src="${srcdir}"])
2220 AC_CONFIG_MAKEFILE(Makefile)
2221 AC_CONFIG_MAKEFILE(Makefile.common)
2222 AC_CONFIG_MAKEFILE(examples/Makefile)
2223 AC_CONFIG_MAKEFILE(lib/Makefile)
2224 AC_CONFIG_MAKEFILE(test/Makefile)
2225 AC_CONFIG_MAKEFILE(test/Makefile.tests)
2226 AC_CONFIG_MAKEFILE(unittests/Makefile)
2227 AC_CONFIG_MAKEFILE(tools/Makefile)
2228 AC_CONFIG_MAKEFILE(utils/Makefile)
2229 AC_CONFIG_MAKEFILE(projects/Makefile)
2230 AC_CONFIG_MAKEFILE(bindings/Makefile)
2231 AC_CONFIG_MAKEFILE(bindings/ocaml/Makefile.ocaml)
2233 dnl Finally, crank out the output