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],[3.7.0svn],[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) 2003-2014 University of Illinois at Urbana-Champaign."])
55 AC_COPYRIGHT([Copyright (c) 2003-2014 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 ${srcdir}])
76 dnl Default to empty (i.e. assigning the null string to) CFLAGS and CXXFLAGS,
77 dnl instead of the autoconf default (for example, '-g -O2' for CC=gcc).
81 dnl We need to check for the compiler up here to avoid anything else
82 dnl starting with a different one.
84 AC_PROG_CXX(clang++ g++)
87 dnl If CXX is Clang, check that it can find and parse C++ standard library
89 if test "$CXX" = "clang++" ; then
90 AC_MSG_CHECKING([whether clang works])
92 dnl Note that space between 'include' and '(' is required. There's a broken
93 dnl regex in aclocal that otherwise will think that we call m4's include
95 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <limits>
96 #if __has_include (<cxxabi.h>)
99 #if __has_include (<unwind.h>)
108 AC_MSG_ERROR([Selected compiler could not find or parse C++ standard library headers. Rerun with CC=c-compiler CXX=c++-compiler ./configure ...])
113 dnl Set up variables that track whether the host compiler is GCC or Clang where
114 dnl we can effectively sanity check them. We don't try to sanity check all the
115 dnl other possible compilers.
116 AC_MSG_CHECKING([whether GCC or Clang is our host compiler])
118 llvm_cv_cxx_compiler=unknown
119 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[#if ! __clang__
123 llvm_cv_cxx_compiler=clang,
124 [AC_COMPILE_IFELSE([AC_LANG_SOURCE([[#if ! __GNUC__
128 llvm_cv_cxx_compiler=gcc, [])])
130 AC_MSG_RESULT([${llvm_cv_cxx_compiler}])
132 dnl Configure all of the projects present in our source tree. While we could
133 dnl just AC_CONFIG_SUBDIRS on the set of directories in projects that have a
134 dnl configure script, that usage of the AC_CONFIG_SUBDIRS macro is deprecated.
135 dnl Instead we match on the known projects.
138 dnl One tricky part of doing this is that some projects depend upon other
139 dnl projects. For example, several projects rely upon the LLVM test suite.
140 dnl We want to configure those projects first so that their object trees are
141 dnl created before running the configure scripts of projects that depend upon
145 dnl Several projects use the LLVM test suite, so configure it next.
146 if test -d ${srcdir}/projects/test-suite ; then
147 AC_CONFIG_SUBDIRS([projects/test-suite])
150 dnl llvm-test is the old name of the test-suite, kept here for backwards
152 if test -d ${srcdir}/projects/llvm-test ; then
153 AC_CONFIG_SUBDIRS([projects/llvm-test])
156 dnl Some projects use poolalloc; configure that next
157 if test -d ${srcdir}/projects/poolalloc ; then
158 AC_CONFIG_SUBDIRS([projects/poolalloc])
161 if test -d ${srcdir}/projects/llvm-poolalloc ; then
162 AC_CONFIG_SUBDIRS([projects/llvm-poolalloc])
165 dnl Check for all other projects
166 for i in `ls ${srcdir}/projects`
168 if test -d ${srcdir}/projects/${i} ; then
170 safecode) AC_CONFIG_SUBDIRS([projects/safecode]) ;;
177 AC_MSG_WARN([Unknown project (${i}) won't be configured automatically])
183 dnl Disable the build of polly, even if it is checked out into tools/polly.
185 AS_HELP_STRING([--enable-polly],
186 [Use polly if available (default is YES)]),,
189 yes) AC_SUBST(ENABLE_POLLY,[1]) ;;
190 no) AC_SUBST(ENABLE_POLLY,[0]) ;;
191 default) AC_SUBST(ENABLE_POLLY,[1]) ;;
192 *) AC_MSG_ERROR([Invalid setting for --enable-polly. Use "yes" or "no"]) ;;
196 dnl Check if polly is checked out into tools/polly and configure it if
198 if (test -d ${srcdir}/tools/polly) && (test $ENABLE_POLLY -eq 1) ; then
199 AC_SUBST(LLVM_HAS_POLLY,1)
200 AC_CONFIG_SUBDIRS([tools/polly])
203 dnl===-----------------------------------------------------------------------===
205 dnl=== SECTION 2: Architecture, target, and host checks
207 dnl===-----------------------------------------------------------------------===
209 dnl Check the target for which we're compiling and the host that will do the
210 dnl compilations. This will tell us which LLVM compiler will be used for
211 dnl compiling SSA into object code. This needs to be done early because
212 dnl following tests depend on it.
215 dnl Determine the platform type and cache its value. This helps us configure
216 dnl the System library to the correct build platform.
217 AC_CACHE_CHECK([type of operating system we're going to host on],
221 llvm_cv_link_all_option="-Wl,--whole-archive"
222 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
223 llvm_cv_os_type="AIX"
224 llvm_cv_platform_type="Unix" ;;
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="IRIX"
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="Cygwin"
234 llvm_cv_platform_type="Unix" ;;
236 llvm_cv_link_all_option="-Wl,-all_load"
237 llvm_cv_no_link_all_option="-Wl,-noall_load"
238 llvm_cv_os_type="Darwin"
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="Minix"
244 llvm_cv_platform_type="Unix" ;;
246 llvm_cv_link_all_option="-Wl,--whole-archive"
247 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
248 llvm_cv_os_type="FreeBSD"
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="GNU/kFreeBSD"
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="OpenBSD"
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="NetBSD"
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="DragonFly"
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="HP-UX"
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="Interix"
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="Linux"
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="GNU"
289 llvm_cv_platform_type="Unix" ;;
291 llvm_cv_link_all_option="-Wl,-z,allextract"
292 llvm_cv_no_link_all_option="-Wl,-z,defaultextract"
293 llvm_cv_os_type="SunOS"
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="Win32"
299 llvm_cv_platform_type="Win32" ;;
301 llvm_cv_link_all_option="-Wl,--whole-archive"
302 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
303 llvm_cv_os_type="MingW"
304 llvm_cv_platform_type="Win32" ;;
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="Haiku"
309 llvm_cv_platform_type="Unix" ;;
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="Freestanding"
314 llvm_cv_platform_type="Unix" ;;
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="Freestanding"
319 llvm_cv_platform_type="Unix" ;;
321 llvm_cv_link_all_option=""
322 llvm_cv_no_link_all_option=""
323 llvm_cv_os_type="Unknown"
324 llvm_cv_platform_type="Unknown" ;;
327 AC_CACHE_CHECK([type of operating system we're going to target],
328 [llvm_cv_target_os_type],
331 llvm_cv_target_os_type="AIX" ;;
333 llvm_cv_target_os_type="IRIX" ;;
335 llvm_cv_target_os_type="Cygwin" ;;
337 llvm_cv_target_os_type="Darwin" ;;
339 llvm_cv_target_os_type="Minix" ;;
341 llvm_cv_target_os_type="FreeBSD" ;;
343 llvm_cv_target_os_type="GNU/kFreeBSD" ;;
345 llvm_cv_target_os_type="OpenBSD" ;;
347 llvm_cv_target_os_type="NetBSD" ;;
349 llvm_cv_target_os_type="DragonFly" ;;
351 llvm_cv_target_os_type="HP-UX" ;;
353 llvm_cv_target_os_type="Interix" ;;
355 llvm_cv_target_os_type="Linux" ;;
357 llvm_cv_target_os_type="GNU" ;;
359 llvm_cv_target_os_type="SunOS" ;;
361 llvm_cv_target_os_type="Win32" ;;
363 llvm_cv_target_os_type="MingW" ;;
365 llvm_cv_target_os_type="Haiku" ;;
367 llvm_cv_target_os_type="RTEMS" ;;
369 llvm_cv_target_os_type="NativeClient" ;;
371 llvm_cv_target_os_type="Freestanding" ;;
373 llvm_cv_target_os_type="PS4" ;;
375 llvm_cv_target_os_type="Unknown" ;;
378 dnl Make sure we aren't attempting to configure for an unknown system
379 if test "$llvm_cv_os_type" = "Unknown" ; then
380 AC_MSG_ERROR([Operating system is unknown, configure can't continue])
383 dnl Set the "OS" Makefile variable based on the platform type so the
384 dnl makefile can configure itself to specific build hosts
385 AC_SUBST(OS,$llvm_cv_os_type)
386 AC_SUBST(HOST_OS,$llvm_cv_os_type)
387 AC_SUBST(TARGET_OS,$llvm_cv_target_os_type)
389 dnl Set the LINKALL and NOLINKALL Makefile variables based on the platform
390 AC_SUBST(LINKALL,$llvm_cv_link_all_option)
391 AC_SUBST(NOLINKALL,$llvm_cv_no_link_all_option)
393 dnl Set the "LLVM_ON_*" variables based on llvm_cv_platform_type
394 dnl This is used by lib/Support to determine the basic kind of implementation
396 case $llvm_cv_platform_type in
398 AC_DEFINE([LLVM_ON_UNIX],[1],[Define if this is Unixish platform])
399 AC_SUBST(LLVM_ON_UNIX,[1])
400 AC_SUBST(LLVM_ON_WIN32,[0])
403 AC_DEFINE([LLVM_ON_WIN32],[1],[Define if this is Win32ish platform])
404 AC_SUBST(LLVM_ON_UNIX,[0])
405 AC_SUBST(LLVM_ON_WIN32,[1])
409 dnl Determine what our target architecture is and configure accordingly.
410 dnl This will allow Makefiles to make a distinction between the hardware and
412 AC_CACHE_CHECK([target architecture],[llvm_cv_target_arch],
414 i?86-*) llvm_cv_target_arch="x86" ;;
415 amd64-* | x86_64-*) llvm_cv_target_arch="x86_64" ;;
416 sparc*-*) llvm_cv_target_arch="Sparc" ;;
417 powerpc*-*) llvm_cv_target_arch="PowerPC" ;;
418 arm64*-*) llvm_cv_target_arch="AArch64" ;;
419 arm*-*) llvm_cv_target_arch="ARM" ;;
420 aarch64*-*) llvm_cv_target_arch="AArch64" ;;
421 mips-* | mips64-*) llvm_cv_target_arch="Mips" ;;
422 mipsel-* | mips64el-*) llvm_cv_target_arch="Mips" ;;
423 xcore-*) llvm_cv_target_arch="XCore" ;;
424 msp430-*) llvm_cv_target_arch="MSP430" ;;
425 hexagon-*) llvm_cv_target_arch="Hexagon" ;;
426 nvptx-*) llvm_cv_target_arch="NVPTX" ;;
427 s390x-*) llvm_cv_target_arch="SystemZ" ;;
428 *) llvm_cv_target_arch="Unknown" ;;
431 if test "$llvm_cv_target_arch" = "Unknown" ; then
432 AC_MSG_WARN([Configuring LLVM for an unknown target archicture])
435 dnl Determine the LLVM native architecture for the target
436 case "$llvm_cv_target_arch" in
437 x86) LLVM_NATIVE_ARCH="X86" ;;
438 x86_64) LLVM_NATIVE_ARCH="X86" ;;
439 *) LLVM_NATIVE_ARCH="$llvm_cv_target_arch" ;;
442 dnl Define a substitution, ARCH, for the target architecture
443 AC_SUBST(ARCH,$llvm_cv_target_arch)
444 AC_SUBST(LLVM_NATIVE_ARCH,$LLVM_NATIVE_ARCH)
446 dnl Determine what our host architecture.
447 dnl This will allow MCJIT regress tests runs only for supported
450 i?86-*) host_arch="x86" ;;
451 amd64-* | x86_64-*) host_arch="x86_64" ;;
452 sparc*-*) host_arch="Sparc" ;;
453 powerpc*-*) host_arch="PowerPC" ;;
454 arm64*-*) host_arch="AArch64" ;;
455 arm*-*) host_arch="ARM" ;;
456 aarch64*-*) host_arch="AArch64" ;;
457 mips-* | mips64-*) host_arch="Mips" ;;
458 mipsel-* | mips64el-*) host_arch="Mips" ;;
459 xcore-*) host_arch="XCore" ;;
460 msp430-*) host_arch="MSP430" ;;
461 hexagon-*) host_arch="Hexagon" ;;
462 s390x-*) host_arch="SystemZ" ;;
463 *) host_arch="Unknown" ;;
466 if test "$host_arch" = "Unknown" ; then
467 AC_MSG_WARN([Configuring LLVM for an unknown host archicture])
470 AC_SUBST(HOST_ARCH,$host_arch)
472 dnl Check for build platform executable suffix if we're cross-compiling
473 if test "$cross_compiling" = yes; then
474 AC_SUBST(LLVM_CROSS_COMPILING, [1])
476 ac_build_prefix=${build_alias}-
477 AC_CHECK_PROG(BUILD_CXX, ${ac_build_prefix}g++, ${ac_build_prefix}g++)
478 if test -z "$BUILD_CXX"; then
479 AC_CHECK_PROG(BUILD_CXX, g++, g++)
480 if test -z "$BUILD_CXX"; then
481 AC_CHECK_PROG(BUILD_CXX, c++, c++, , , /usr/ucb/c++)
485 AC_SUBST(LLVM_CROSS_COMPILING, [0])
488 dnl Check to see if there's a .svn or .git directory indicating that this
489 dnl build is being done from a checkout. This sets up several defaults for
490 dnl the command line switches. When we build with a checkout directory,
491 dnl we get a debug with assertions turned on. Without, we assume a source
492 dnl release and we get an optimized build without assertions.
493 dnl See --enable-optimized and --enable-assertions below
494 if test -d ".svn" -o -d "${srcdir}/.svn" -o -d ".git" -o -d "${srcdir}/.git"; then
497 AC_SUBST(CVSBUILD,[[CVSBUILD=1]])
503 dnl===-----------------------------------------------------------------------===
505 dnl=== SECTION 3: Command line arguments for the configure script.
507 dnl===-----------------------------------------------------------------------===
509 dnl --enable-libcpp : check whether or not to use libc++ on the command line
510 AC_ARG_ENABLE(libcpp,
511 AS_HELP_STRING([--enable-libcpp],
512 [Use libc++ if available (default is NO)]),,
515 yes) AC_SUBST(ENABLE_LIBCPP,[1]) ;;
516 no) AC_SUBST(ENABLE_LIBCPP,[0]) ;;
517 default) AC_SUBST(ENABLE_LIBCPP,[0]);;
518 *) AC_MSG_ERROR([Invalid setting for --enable-libcpp. Use "yes" or "no"]) ;;
521 dnl Check both GCC and Clang for sufficiently modern versions. These checks can
522 dnl be bypassed by passing a flag if necessary on a platform. We have to do
523 dnl these checks here so that we have the configuration of the standard C++
524 dnl library finished.
525 AC_ARG_ENABLE(compiler-version-checks,
526 AS_HELP_STRING([--enable-compiler-version-checks],
527 [Check the version of the host compiler (default is YES)]),,
534 case "$llvm_cv_cxx_compiler" in
536 AC_MSG_CHECKING([whether Clang is new enough])
537 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
538 #if __clang_major__ < 3 || (__clang_major__ == 3 && __clang_minor__ < 1)
539 #error This version of Clang is too old to build LLVM
542 [AC_MSG_RESULT([yes])],
545 The selected Clang compiler is not new enough to build LLVM. Please upgrade to
546 Clang 3.1. You may pass --disable-compiler-version-checks to configure to
547 bypass these sanity checks.])])
549 dnl Note that libstdc++4.6 is known broken for C++11 builds. The errors
550 dnl are sometimes deeply confusing though. Here we test for an obvious
551 dnl incomplete feature in 4.6's standard library that was completed in
552 dnl 4.7's. We also have to disable this test if 'ENABLE_LIBCPP' is set
553 dnl because the enable flags don't actually fix CXXFLAGS, they rely on
554 dnl that happening in the Makefile.
555 if test "$ENABLE_LIBCPP" -eq 0 ; then
556 AC_MSG_CHECKING([whether Clang will select a modern C++ standard library])
557 llvm_cv_old_cxxflags="$CXXFLAGS"
558 CXXFLAGS="$CXXFLAGS -std=c++0x"
559 AC_LINK_IFELSE([AC_LANG_SOURCE([[
561 std::atomic<float> x(0.0f);
562 int main() { return (float)x; }
564 [AC_MSG_RESULT([yes])],
567 We detected a missing feature in the standard C++ library that was known to be
568 missing in libstdc++4.6 and implemented in libstdc++4.7. There are numerous
569 C++11 problems with 4.6's library, and we don't support GCCs or libstdc++ older
570 than 4.7. You will need to update your system and ensure Clang uses the newer
573 If this error is incorrect or you need to force things to work, you may pass
574 '--disable-compiler-version-checks' to configure to bypass this test.])])
575 CXXFLAGS="$llvm_cv_old_cxxflags"
579 AC_MSG_CHECKING([whether GCC is new enough])
580 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
581 #if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 7)
582 #error This version of GCC is too old to build LLVM
585 [AC_MSG_RESULT([yes])],
588 The selected GCC C++ compiler is not new enough to build LLVM. Please upgrade
589 to GCC 4.7. You may pass --disable-compiler-version-checks to configure to
590 bypass these sanity checks.])])
598 AC_MSG_ERROR([Invalid setting for --enable-compiler-version-checks. Use "yes" or "no"])
602 dnl --enable-cxx1y : check whether or not to use -std=c++1y on the command line
604 AS_HELP_STRING([--enable-cxx1y],
605 [Use c++1y if available (default is NO)]),,
608 yes) AC_SUBST(ENABLE_CXX1Y,[1]) ;;
609 no) AC_SUBST(ENABLE_CXX1Y,[0]) ;;
610 default) AC_SUBST(ENABLE_CXX1Y,[0]);;
611 *) AC_MSG_ERROR([Invalid setting for --enable-cxx1y. Use "yes" or "no"]) ;;
614 dnl --enable-split-dwarf : check whether or not to use -gsplit-dwarf on the command
616 AC_ARG_ENABLE(split-dwarf,
617 AS_HELP_STRING([--enable-split-dwarf],
618 [Use split-dwarf if available (default is NO)]),,
621 yes) AC_SUBST(ENABLE_SPLIT_DWARF,[1]) ;;
622 no) AC_SUBST(ENABLE_SPLIT_DWARF,[0]) ;;
623 default) AC_SUBST(ENABLE_SPLIT_DWARF,[0]);;
624 *) AC_MSG_ERROR([Invalid setting for --enable-split-dwarf. Use "yes" or "no"]) ;;
627 dnl --enable-clang-arcmt: check whether to enable clang arcmt
629 AC_ARG_ENABLE(clang-arcmt,
630 AS_HELP_STRING([--enable-clang-arcmt],
631 [Enable building of clang ARCMT (default is YES)]),
632 clang_arcmt="$enableval",
635 yes) AC_SUBST(ENABLE_CLANG_ARCMT,[1]) ;;
636 no) AC_SUBST(ENABLE_CLANG_ARCMT,[0]) ;;
637 default) AC_SUBST(ENABLE_CLANG_ARCMT,[1]);;
638 *) AC_MSG_ERROR([Invalid setting for --enable-clang-arcmt. Use "yes" or "no"]) ;;
641 dnl --enable-clang-plugin-support: check whether to enable plugins in clang
642 clang_plugin_support="yes"
643 AC_ARG_ENABLE(clang-plugin-support,
644 AS_HELP_STRING([--enable-clang-plugin-support],
645 [Enable plugin support in clang (default is YES)]),
646 clang_plugin_support="$enableval",
649 yes) AC_SUBST(CLANG_PLUGIN_SUPPORT,[1]) ;;
650 no) AC_SUBST(CLANG_PLUGIN_SUPPORT,[0]) ;;
651 default) AC_SUBST(CLANG_PLUGIN_SUPPORT,[1]);;
652 *) AC_MSG_ERROR([Invalid setting for --enable-clang-plugin-support. Use "yes" or "no"]) ;;
655 dnl --enable-clang-static-analyzer: check whether to enable static-analyzer
656 clang_static_analyzer="yes"
657 AC_ARG_ENABLE(clang-static-analyzer,
658 AS_HELP_STRING([--enable-clang-static-analyzer],
659 [Enable building of clang Static Analyzer (default is YES)]),
660 clang_static_analyzer="$enableval",
663 yes) AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[1]) ;;
665 if test ${clang_arcmt} != "no" ; then
666 AC_MSG_ERROR([Cannot enable clang ARC Migration Tool while disabling static analyzer.])
668 AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[0])
670 default) AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[1]);;
671 *) AC_MSG_ERROR([Invalid setting for --enable-clang-static-analyzer. Use "yes" or "no"]) ;;
674 dnl --enable-optimized : check whether they want to do an optimized build:
675 AC_ARG_ENABLE(optimized, AS_HELP_STRING(
676 --enable-optimized,[Compile with optimizations enabled (default is NO)]),,enableval=$optimize)
677 if test ${enableval} = "no" ; then
678 AC_SUBST(ENABLE_OPTIMIZED,[[]])
680 AC_SUBST(ENABLE_OPTIMIZED,[[ENABLE_OPTIMIZED=1]])
683 dnl --enable-profiling : check whether they want to do a profile build:
684 AC_ARG_ENABLE(profiling, AS_HELP_STRING(
685 --enable-profiling,[Compile with profiling enabled (default is NO)]),,enableval="no")
686 if test ${enableval} = "no" ; then
687 AC_SUBST(ENABLE_PROFILING,[[]])
689 AC_SUBST(ENABLE_PROFILING,[[ENABLE_PROFILING=1]])
692 dnl --enable-assertions : check whether they want to turn on assertions or not:
693 AC_ARG_ENABLE(assertions,AS_HELP_STRING(
694 --enable-assertions,[Compile with assertion checks enabled (default is YES)]),, enableval="yes")
695 if test ${enableval} = "yes" ; then
696 AC_SUBST(DISABLE_ASSERTIONS,[[]])
698 AC_SUBST(DISABLE_ASSERTIONS,[[DISABLE_ASSERTIONS=1]])
701 dnl --enable-werror : check whether we want Werror on by default
702 AC_ARG_ENABLE(werror,AS_HELP_STRING(
703 --enable-werror,[Compile with -Werror enabled (default is NO)]),, enableval="no")
705 yes) AC_SUBST(ENABLE_WERROR,[1]) ;;
706 no) AC_SUBST(ENABLE_WERROR,[0]) ;;
707 default) AC_SUBST(ENABLE_WERROR,[0]);;
708 *) AC_MSG_ERROR([Invalid setting for --enable-werror. Use "yes" or "no"]) ;;
711 dnl --enable-expensive-checks : check whether they want to turn on expensive debug checks:
712 AC_ARG_ENABLE(expensive-checks,AS_HELP_STRING(
713 --enable-expensive-checks,[Compile with expensive debug checks enabled (default is NO)]),, enableval="no")
714 if test ${enableval} = "yes" ; then
715 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[ENABLE_EXPENSIVE_CHECKS=1]])
716 AC_SUBST(EXPENSIVE_CHECKS,[[yes]])
718 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[]])
719 AC_SUBST(EXPENSIVE_CHECKS,[[no]])
722 dnl --enable-debug-runtime : should runtime libraries have debug symbols?
723 AC_ARG_ENABLE(debug-runtime,
724 AS_HELP_STRING(--enable-debug-runtime,[Build runtime libs with debug symbols (default is NO)]),,enableval=no)
725 if test ${enableval} = "no" ; then
726 AC_SUBST(DEBUG_RUNTIME,[[]])
728 AC_SUBST(DEBUG_RUNTIME,[[DEBUG_RUNTIME=1]])
731 dnl --enable-debug-symbols : should even optimized compiler libraries
732 dnl have debug symbols?
733 AC_ARG_ENABLE(debug-symbols,
734 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)
735 if test ${enableval} = "no" ; then
736 AC_SUBST(DEBUG_SYMBOLS,[[]])
738 AC_SUBST(DEBUG_SYMBOLS,[[DEBUG_SYMBOLS=1]])
741 dnl --enable-keep-symbols : do not strip installed executables
742 AC_ARG_ENABLE(keep-symbols,
743 AS_HELP_STRING(--enable-keep-symbols,[Do not strip installed executables)]),,enableval=no)
744 if test ${enableval} = "no" ; then
745 AC_SUBST(KEEP_SYMBOLS,[[]])
747 AC_SUBST(KEEP_SYMBOLS,[[KEEP_SYMBOLS=1]])
750 dnl --enable-jit: check whether they want to enable the jit
752 AS_HELP_STRING(--enable-jit,
753 [Enable Just In Time Compiling (default is YES)]),,
755 if test ${enableval} = "no"
759 case "$llvm_cv_target_arch" in
760 x86) AC_SUBST(TARGET_HAS_JIT,1) ;;
761 Sparc) AC_SUBST(TARGET_HAS_JIT,0) ;;
762 PowerPC) AC_SUBST(TARGET_HAS_JIT,1) ;;
763 x86_64) AC_SUBST(TARGET_HAS_JIT,1) ;;
764 ARM) AC_SUBST(TARGET_HAS_JIT,1) ;;
765 Mips) AC_SUBST(TARGET_HAS_JIT,1) ;;
766 XCore) AC_SUBST(TARGET_HAS_JIT,0) ;;
767 MSP430) AC_SUBST(TARGET_HAS_JIT,0) ;;
768 Hexagon) AC_SUBST(TARGET_HAS_JIT,0) ;;
769 NVPTX) AC_SUBST(TARGET_HAS_JIT,0) ;;
770 SystemZ) AC_SUBST(TARGET_HAS_JIT,1) ;;
771 *) AC_SUBST(TARGET_HAS_JIT,0) ;;
775 TARGETS_WITH_JIT="ARM AArch64 Mips PowerPC SystemZ X86"
776 AC_SUBST(TARGETS_WITH_JIT,$TARGETS_WITH_JIT)
778 dnl Allow enablement of building and installing docs
780 AS_HELP_STRING([--enable-docs],
781 [Build documents (default is YES)]),,
784 yes) AC_SUBST(ENABLE_DOCS,[1]) ;;
785 no) AC_SUBST(ENABLE_DOCS,[0]) ;;
786 default) AC_SUBST(ENABLE_DOCS,[1]) ;;
787 *) AC_MSG_ERROR([Invalid setting for --enable-docs. Use "yes" or "no"]) ;;
790 dnl Allow enablement of doxygen generated documentation
791 AC_ARG_ENABLE(doxygen,
792 AS_HELP_STRING([--enable-doxygen],
793 [Build doxygen documentation (default is NO)]),,
796 yes) AC_SUBST(ENABLE_DOXYGEN,[1]) ;;
797 no) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
798 default) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
799 *) AC_MSG_ERROR([Invalid setting for --enable-doxygen. Use "yes" or "no"]) ;;
802 dnl Allow disablement of threads
803 AC_ARG_ENABLE(threads,
804 AS_HELP_STRING([--enable-threads],
805 [Use threads if available (default is YES)]),,
808 yes) AC_SUBST(LLVM_ENABLE_THREADS,[1]) ;;
809 no) AC_SUBST(LLVM_ENABLE_THREADS,[0]) ;;
810 default) AC_SUBST(LLVM_ENABLE_THREADS,[1]) ;;
811 *) AC_MSG_ERROR([Invalid setting for --enable-threads. Use "yes" or "no"]) ;;
813 AC_DEFINE_UNQUOTED([LLVM_ENABLE_THREADS],$LLVM_ENABLE_THREADS,
814 [Define if threads enabled])
816 dnl Allow disablement of pthread.h
817 AC_ARG_ENABLE(pthreads,
818 AS_HELP_STRING([--enable-pthreads],
819 [Use pthreads if available (default is YES)]),,
822 yes) AC_SUBST(ENABLE_PTHREADS,[1]) ;;
823 no) AC_SUBST(ENABLE_PTHREADS,[0]) ;;
824 default) AC_SUBST(ENABLE_PTHREADS,[1]) ;;
825 *) AC_MSG_ERROR([Invalid setting for --enable-pthreads. Use "yes" or "no"]) ;;
828 dnl Allow disablement of zlib
830 AS_HELP_STRING([--enable-zlib],
831 [Use zlib for compression/decompression if
832 available (default is YES)]),,
835 yes) AC_SUBST(LLVM_ENABLE_ZLIB,[1]) ;;
836 no) AC_SUBST(LLVM_ENABLE_ZLIB,[0]) ;;
837 default) AC_SUBST(LLVM_ENABLE_ZLIB,[1]) ;;
838 *) AC_MSG_ERROR([Invalid setting for --enable-zlib. Use "yes" or "no"]) ;;
840 AC_DEFINE_UNQUOTED([LLVM_ENABLE_ZLIB],$LLVM_ENABLE_ZLIB,
841 [Define if zlib is enabled])
843 dnl Allow building without position independent code
845 AS_HELP_STRING([--enable-pic],
846 [Build LLVM with Position Independent Code (default is YES)]),,
849 yes) AC_SUBST(ENABLE_PIC,[1]) ;;
850 no) AC_SUBST(ENABLE_PIC,[0]) ;;
851 default) AC_SUBST(ENABLE_PIC,[1]) ;;
852 *) AC_MSG_ERROR([Invalid setting for --enable-pic. Use "yes" or "no"]) ;;
854 AC_DEFINE_UNQUOTED([ENABLE_PIC],$ENABLE_PIC,
855 [Define if position independent code is enabled])
857 dnl Allow building a shared library and linking tools against it.
858 AC_ARG_ENABLE(shared,
859 AS_HELP_STRING([--enable-shared],
860 [Build a shared library and link tools against it (default is NO)]),,
863 yes) AC_SUBST(ENABLE_SHARED,[1]) ;;
864 no) AC_SUBST(ENABLE_SHARED,[0]) ;;
865 default) AC_SUBST(ENABLE_SHARED,[0]) ;;
866 *) AC_MSG_ERROR([Invalid setting for --enable-shared. Use "yes" or "no"]) ;;
869 dnl Allow libstdc++ is embedded in LLVM.dll.
870 AC_ARG_ENABLE(embed-stdcxx,
871 AS_HELP_STRING([--enable-embed-stdcxx],
872 [Build a shared library with embedded libstdc++ for Win32 DLL (default is NO)]),,
875 yes) AC_SUBST(ENABLE_EMBED_STDCXX,[1]) ;;
876 no) AC_SUBST(ENABLE_EMBED_STDCXX,[0]) ;;
877 default) AC_SUBST(ENABLE_EMBED_STDCXX,[0]) ;;
878 *) AC_MSG_ERROR([Invalid setting for --enable-embed-stdcxx. Use "yes" or "no"]) ;;
881 dnl Enable embedding timestamp information into build.
882 AC_ARG_ENABLE(timestamps,
883 AS_HELP_STRING([--enable-timestamps],
884 [Enable embedding timestamp information in build (default is YES)]),,
887 yes) AC_SUBST(ENABLE_TIMESTAMPS,[1]) ;;
888 no) AC_SUBST(ENABLE_TIMESTAMPS,[0]) ;;
889 default) AC_SUBST(ENABLE_TIMESTAMPS,[1]) ;;
890 *) AC_MSG_ERROR([Invalid setting for --enable-timestamps. Use "yes" or "no"]) ;;
892 AC_DEFINE_UNQUOTED([ENABLE_TIMESTAMPS],$ENABLE_TIMESTAMPS,
893 [Define if timestamp information (e.g., __DATE__) is allowed])
895 dnl Enable support for showing backtraces.
896 AC_ARG_ENABLE(backtraces, AS_HELP_STRING(
897 [--enable-backtraces],
898 [Enable embedding backtraces on crash (default is YES)]),
899 [case "$enableval" in
900 yes) llvm_cv_enable_backtraces="yes" ;;
901 no) llvm_cv_enable_backtraces="no" ;;
902 *) AC_MSG_ERROR([Invalid setting for --enable-backtraces. Use "yes" or "no"]) ;;
904 llvm_cv_enable_backtraces="yes")
905 if test "$llvm_cv_enable_backtraces" = "yes" ; then
906 AC_DEFINE([ENABLE_BACKTRACES],[1],
907 [Define if you want backtraces on crash])
910 dnl Enable installing platform specific signal handling overrides, for improved
911 dnl CrashRecovery support or interaction with crash reporting software. This
912 dnl support may be inappropriate for some clients embedding LLVM as a library.
913 AC_ARG_ENABLE(crash-overrides, AS_HELP_STRING(
914 [--enable-crash-overrides],
915 [Enable crash handling overrides (default is YES)]),
916 [case "$enableval" in
917 yes) llvm_cv_enable_crash_overrides="yes" ;;
918 no) llvm_cv_enable_crash_overrides="no" ;;
919 *) AC_MSG_ERROR([Invalid setting for --enable-crash-overrides. Use "yes" or "no"]) ;;
921 llvm_cv_enable_crash_overrides="yes")
922 if test "$llvm_cv_enable_crash_overrides" = "yes" ; then
923 AC_DEFINE([ENABLE_CRASH_OVERRIDES],[1],
924 [Define to enable crash handling overrides])
927 dnl List all possible targets
928 ALL_TARGETS="X86 Sparc PowerPC ARM AArch64 Mips XCore MSP430 CppBackend NVPTX Hexagon SystemZ R600"
929 AC_SUBST(ALL_TARGETS,$ALL_TARGETS)
931 dnl Allow specific targets to be specified for building (or not)
933 AC_ARG_ENABLE([targets],AS_HELP_STRING([--enable-targets],
934 [Build specific host targets: all or target1,target2,... Valid targets are:
935 host, x86, x86_64, sparc, powerpc, arm64, arm, aarch64, mips, hexagon,
936 xcore, msp430, nvptx, systemz, r600, and cpp (default=all)]),,
938 if test "$enableval" = host-only ; then
942 all) TARGETS_TO_BUILD="$ALL_TARGETS" ;;
943 *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
945 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
946 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
947 sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
948 powerpc) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
949 aarch64) TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
950 arm64) TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
951 arm) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
952 mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
953 mipsel) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
954 mips64) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
955 mips64el) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
956 xcore) TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
957 msp430) TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;;
958 cpp) TARGETS_TO_BUILD="CppBackend $TARGETS_TO_BUILD" ;;
959 hexagon) TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;;
960 nvptx) TARGETS_TO_BUILD="NVPTX $TARGETS_TO_BUILD" ;;
961 systemz) TARGETS_TO_BUILD="SystemZ $TARGETS_TO_BUILD" ;;
962 r600) TARGETS_TO_BUILD="R600 $TARGETS_TO_BUILD" ;;
963 host) case "$llvm_cv_target_arch" in
964 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
965 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
966 Sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
967 PowerPC) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
968 AArch64) TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
969 ARM) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
970 Mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
971 XCore) TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
972 MSP430) TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;;
973 Hexagon) TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;;
974 NVPTX) TARGETS_TO_BUILD="NVPTX $TARGETS_TO_BUILD" ;;
975 SystemZ) TARGETS_TO_BUILD="SystemZ $TARGETS_TO_BUILD" ;;
976 *) AC_MSG_ERROR([Can not set target to build]) ;;
978 *) AC_MSG_ERROR([Unrecognized target $a_target]) ;;
984 AC_ARG_ENABLE([experimental-targets],AS_HELP_STRING([--enable-experimental-targets],
985 [Build experimental host targets: disable or target1,target2,...
986 (default=disable)]),,
989 if test ${enableval} != "disable"
991 TARGETS_TO_BUILD="$enableval $TARGETS_TO_BUILD"
994 AC_SUBST(TARGETS_TO_BUILD,$TARGETS_TO_BUILD)
996 dnl Determine whether we are building LLVM support for the native architecture.
997 dnl If so, define LLVM_NATIVE_ARCH to that LLVM target.
998 for a_target in $TARGETS_TO_BUILD; do
999 if test "$a_target" = "$LLVM_NATIVE_ARCH"; then
1000 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ARCH, $LLVM_NATIVE_ARCH,
1001 [LLVM architecture name for the native architecture, if available])
1002 LLVM_NATIVE_TARGET="LLVMInitialize${LLVM_NATIVE_ARCH}Target"
1003 LLVM_NATIVE_TARGETINFO="LLVMInitialize${LLVM_NATIVE_ARCH}TargetInfo"
1004 LLVM_NATIVE_TARGETMC="LLVMInitialize${LLVM_NATIVE_ARCH}TargetMC"
1005 LLVM_NATIVE_ASMPRINTER="LLVMInitialize${LLVM_NATIVE_ARCH}AsmPrinter"
1006 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/Makefile ; then
1007 LLVM_NATIVE_ASMPARSER="LLVMInitialize${LLVM_NATIVE_ARCH}AsmParser"
1009 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/Makefile ; then
1010 LLVM_NATIVE_DISASSEMBLER="LLVMInitialize${LLVM_NATIVE_ARCH}Disassembler"
1012 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGET, $LLVM_NATIVE_TARGET,
1013 [LLVM name for the native Target init function, if available])
1014 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGETINFO, $LLVM_NATIVE_TARGETINFO,
1015 [LLVM name for the native TargetInfo init function, if available])
1016 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGETMC, $LLVM_NATIVE_TARGETMC,
1017 [LLVM name for the native target MC init function, if available])
1018 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ASMPRINTER, $LLVM_NATIVE_ASMPRINTER,
1019 [LLVM name for the native AsmPrinter init function, if available])
1020 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/Makefile ; then
1021 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ASMPARSER, $LLVM_NATIVE_ASMPARSER,
1022 [LLVM name for the native AsmParser init function, if available])
1024 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/Makefile ; then
1025 AC_DEFINE_UNQUOTED(LLVM_NATIVE_DISASSEMBLER, $LLVM_NATIVE_DISASSEMBLER,
1026 [LLVM name for the native Disassembler init function, if available])
1031 dnl Build the LLVM_TARGET and LLVM_... macros for Targets.def and the individual
1032 dnl target feature def files.
1033 LLVM_ENUM_TARGETS=""
1034 LLVM_ENUM_ASM_PRINTERS=""
1035 LLVM_ENUM_ASM_PARSERS=""
1036 LLVM_ENUM_DISASSEMBLERS=""
1037 for target_to_build in $TARGETS_TO_BUILD; do
1038 LLVM_ENUM_TARGETS="LLVM_TARGET($target_to_build) $LLVM_ENUM_TARGETS"
1039 if test -f ${srcdir}/lib/Target/${target_to_build}/*AsmPrinter.cpp ; then
1040 LLVM_ENUM_ASM_PRINTERS="LLVM_ASM_PRINTER($target_to_build) $LLVM_ENUM_ASM_PRINTERS";
1042 if test -f ${srcdir}/lib/Target/${target_to_build}/AsmParser/Makefile ; then
1043 LLVM_ENUM_ASM_PARSERS="LLVM_ASM_PARSER($target_to_build) $LLVM_ENUM_ASM_PARSERS";
1045 if test -f ${srcdir}/lib/Target/${target_to_build}/Disassembler/Makefile ; then
1046 LLVM_ENUM_DISASSEMBLERS="LLVM_DISASSEMBLER($target_to_build) $LLVM_ENUM_DISASSEMBLERS";
1049 AC_SUBST(LLVM_ENUM_TARGETS)
1050 AC_SUBST(LLVM_ENUM_ASM_PRINTERS)
1051 AC_SUBST(LLVM_ENUM_ASM_PARSERS)
1052 AC_SUBST(LLVM_ENUM_DISASSEMBLERS)
1054 dnl Override the option to use for optimized builds.
1055 AC_ARG_WITH(optimize-option,
1056 AS_HELP_STRING([--with-optimize-option],
1057 [Select the compiler options to use for optimized builds]),,
1059 AC_MSG_CHECKING([optimization flags])
1062 case "$llvm_cv_os_type" in
1063 FreeBSD) optimize_option=-O2 ;;
1064 MingW) optimize_option=-O2 ;;
1065 *) optimize_option=-O3 ;;
1067 *) optimize_option="$withval" ;;
1069 AC_SUBST(OPTIMIZE_OPTION,$optimize_option)
1070 AC_MSG_RESULT([$optimize_option])
1072 dnl Specify extra build options
1073 AC_ARG_WITH(extra-options,
1074 AS_HELP_STRING([--with-extra-options],
1075 [Specify additional options to compile LLVM with]),,
1078 default) EXTRA_OPTIONS= ;;
1079 *) EXTRA_OPTIONS=$withval ;;
1081 AC_SUBST(EXTRA_OPTIONS,$EXTRA_OPTIONS)
1083 dnl Specify extra linker build options
1084 AC_ARG_WITH(extra-ld-options,
1085 AS_HELP_STRING([--with-extra-ld-options],
1086 [Specify additional options to link LLVM with]),,
1089 default) EXTRA_LD_OPTIONS= ;;
1090 *) EXTRA_LD_OPTIONS=$withval ;;
1092 AC_SUBST(EXTRA_LD_OPTIONS,$EXTRA_LD_OPTIONS)
1094 dnl Allow specific bindings to be specified for building (or not)
1095 AC_ARG_ENABLE([bindings],AS_HELP_STRING([--enable-bindings],
1096 [Build specific language bindings: all,auto,none,{binding-name} (default=auto)]),,
1098 BINDINGS_TO_BUILD=""
1099 case "$enableval" in
1100 yes | default | auto) BINDINGS_TO_BUILD="auto" ;;
1101 all ) BINDINGS_TO_BUILD="ocaml" ;;
1102 none | no) BINDINGS_TO_BUILD="" ;;
1103 *)for a_binding in `echo $enableval|sed -e 's/,/ /g' ` ; do
1104 case "$a_binding" in
1105 ocaml) BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD" ;;
1106 *) AC_MSG_ERROR([Unrecognized binding $a_binding]) ;;
1112 dnl Allow the ocaml libdir to be overridden. This could go in a configure
1113 dnl script for bindings/ocaml/configure, except that its auto value depends on
1114 dnl OCAMLC, which is found here to support tests.
1115 AC_ARG_WITH([ocaml-libdir],
1116 [AS_HELP_STRING([--with-ocaml-libdir],
1117 [Specify install location for ocaml bindings (default is stdlib)])],
1121 auto) with_ocaml_libdir="$withval" ;;
1122 /* | [[A-Za-z]]:[[\\/]]*) with_ocaml_libdir="$withval" ;;
1123 *) AC_MSG_ERROR([Invalid path for --with-ocaml-libdir. Provide full path]) ;;
1126 AC_ARG_WITH(clang-srcdir,
1127 AS_HELP_STRING([--with-clang-srcdir],
1128 [Directory to the out-of-tree Clang source]),,
1131 -) clang_src_root="" ;;
1132 /* | [[A-Za-z]]:[[\\/]]*) clang_src_root="$withval" ;;
1133 *) clang_src_root="$ac_pwd/$withval" ;;
1135 AC_SUBST(CLANG_SRC_ROOT,[$clang_src_root])
1137 AC_ARG_WITH(clang-resource-dir,
1138 AS_HELP_STRING([--with-clang-resource-dir],
1139 [Relative directory from the Clang binary for resource files]),,
1141 AC_DEFINE_UNQUOTED(CLANG_RESOURCE_DIR,"$withval",
1142 [Relative directory for resource files])
1144 AC_ARG_WITH(c-include-dirs,
1145 AS_HELP_STRING([--with-c-include-dirs],
1146 [Colon separated list of directories clang will search for headers]),,
1148 AC_DEFINE_UNQUOTED(C_INCLUDE_DIRS,"$withval",
1149 [Directories clang will search for headers])
1151 # Clang normally uses the system c++ headers and libraries. With this option,
1152 # clang will use the ones provided by a gcc installation instead. This option should
1153 # be passed the same value that was used with --prefix when configuring gcc.
1154 AC_ARG_WITH(gcc-toolchain,
1155 AS_HELP_STRING([--with-gcc-toolchain],
1156 [Directory where gcc is installed.]),,
1158 AC_DEFINE_UNQUOTED(GCC_INSTALL_PREFIX,"$withval",
1159 [Directory where gcc is installed.])
1161 AC_ARG_WITH(default-sysroot,
1162 AS_HELP_STRING([--with-default-sysroot],
1163 [Add --sysroot=<path> to all compiler invocations.]),,
1165 AC_DEFINE_UNQUOTED(DEFAULT_SYSROOT,"$withval",
1166 [Default <path> to all compiler invocations for --sysroot=<path>.])
1168 dnl Allow linking of LLVM with GPLv3 binutils code.
1169 AC_ARG_WITH(binutils-include,
1170 AS_HELP_STRING([--with-binutils-include],
1171 [Specify path to binutils/include/ containing plugin-api.h file for gold plugin.]),,
1174 default) WITH_BINUTILS_INCDIR=default ;;
1175 /* | [[A-Za-z]]:[[\\/]]*) WITH_BINUTILS_INCDIR=$withval ;;
1176 *) AC_MSG_ERROR([Invalid path for --with-binutils-include. Provide full path]) ;;
1178 if test "x$WITH_BINUTILS_INCDIR" != xdefault ; then
1179 AC_SUBST(BINUTILS_INCDIR,$WITH_BINUTILS_INCDIR)
1180 if test ! -f "$WITH_BINUTILS_INCDIR/plugin-api.h"; then
1181 echo "$WITH_BINUTILS_INCDIR/plugin-api.h"
1182 AC_MSG_ERROR([Invalid path to directory containing plugin-api.h.]);
1186 dnl Specify the URL where bug reports should be submitted.
1187 AC_ARG_WITH(bug-report-url,
1188 AS_HELP_STRING([--with-bug-report-url],
1189 [Specify the URL where bug reports should be submitted (default=http://llvm.org/bugs/)]),,
1190 withval="http://llvm.org/bugs/")
1191 AC_DEFINE_UNQUOTED(BUG_REPORT_URL,"$withval",
1194 dnl --enable-terminfo: check whether the user wants to control use of terminfo:
1195 AC_ARG_ENABLE(terminfo,AS_HELP_STRING(
1196 [--enable-terminfo],
1197 [Query the terminfo database if available (default is YES)]),
1198 [case "$enableval" in
1199 yes) llvm_cv_enable_terminfo="yes" ;;
1200 no) llvm_cv_enable_terminfo="no" ;;
1201 *) AC_MSG_ERROR([Invalid setting for --enable-terminfo. Use "yes" or "no"]) ;;
1203 llvm_cv_enable_terminfo="yes")
1204 case "$llvm_cv_enable_terminfo" in
1205 yes) AC_SUBST(ENABLE_TERMINFO,[1]) ;;
1206 no) AC_SUBST(ENABLE_TERMINFO,[0]) ;;
1209 dnl --enable-libedit: check whether the user wants to turn off libedit.
1210 AC_ARG_ENABLE(libedit,AS_HELP_STRING(
1212 [Use libedit if available (default is YES)]),
1213 [case "$enableval" in
1214 yes) llvm_cv_enable_libedit="yes" ;;
1215 no) llvm_cv_enable_libedit="no" ;;
1216 *) AC_MSG_ERROR([Invalid setting for --enable-libedit. Use "yes" or "no"]) ;;
1218 llvm_cv_enable_libedit="yes")
1220 dnl --enable-libffi : check whether the user wants to turn off libffi:
1221 AC_ARG_ENABLE(libffi,AS_HELP_STRING(
1222 --enable-libffi,[Check for the presence of libffi (default is NO)]),
1223 [case "$enableval" in
1224 yes) llvm_cv_enable_libffi="yes" ;;
1225 no) llvm_cv_enable_libffi="no" ;;
1226 *) AC_MSG_ERROR([Invalid setting for --enable-libffi. Use "yes" or "no"]) ;;
1228 llvm_cv_enable_libffi=no)
1230 AC_ARG_WITH(internal-prefix,
1231 AS_HELP_STRING([--with-internal-prefix],
1232 [Installation directory for internal files]),,
1234 AC_SUBST(INTERNAL_PREFIX,[$withval])
1236 dnl===-----------------------------------------------------------------------===
1238 dnl=== SECTION 4: Check for programs we need and that they are the right version
1240 dnl===-----------------------------------------------------------------------===
1242 dnl Check for the tools that the makefiles require
1245 AC_PATH_PROG(NM, [nm], [nm])
1246 AC_PATH_PROG(CMP, [cmp], [cmp])
1247 AC_PATH_PROG(CP, [cp], [cp])
1248 AC_PATH_PROG(DATE, [date], [date])
1249 AC_PATH_PROG(FIND, [find], [find])
1250 AC_PATH_PROG(GREP, [grep], [grep])
1251 AC_PATH_PROG(MKDIR,[mkdir],[mkdir])
1252 AC_PATH_PROG(MV, [mv], [mv])
1254 AC_CHECK_TOOL(AR, ar, false)
1255 AC_PATH_PROG(RM, [rm], [rm])
1256 AC_PATH_PROG(SED, [sed], [sed])
1257 AC_PATH_PROG(TAR, [tar], [gtar])
1258 AC_PATH_PROG(BINPWD,[pwd], [pwd])
1260 dnl Looking for misc. graph plotting software
1261 AC_PATH_PROG(DOT, [dot], [echo dot])
1262 if test "$DOT" != "echo dot" ; then
1263 AC_DEFINE([HAVE_DOT],[1],[Define if the dot program is available])
1264 dnl If we're targeting for mingw we should emit windows paths, not msys
1265 if test "$llvm_cv_os_type" = "MingW" ; then
1266 DOT=`echo $DOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1268 AC_DEFINE_UNQUOTED([LLVM_PATH_DOT],"$DOT${EXEEXT}",
1269 [Define to path to dot program if found or 'echo dot' otherwise])
1272 dnl Find the install program
1274 dnl Prepend src dir to install path dir if it's a relative path
1275 dnl This is a hack for installs that take place in something other
1276 dnl than the top level.
1278 [[\\/$]]* | ?:[[\\/]]* ) ;;
1279 *) INSTALL="\\\$(TOPSRCDIR)/$INSTALL" ;;
1282 dnl Checks for documentation and testing tools that we can do without. If these
1283 dnl are not found then they are set to "true" which always succeeds but does
1284 dnl nothing. This just lets the build output show that we could have done
1285 dnl something if the tool was available.
1286 AC_PATH_PROG(BZIP2, [bzip2])
1287 AC_PATH_PROG(CAT, [cat])
1288 AC_PATH_PROG(DOXYGEN, [doxygen])
1289 AC_PATH_PROG(GROFF, [groff])
1290 AC_PATH_PROG(GZIPBIN, [gzip])
1291 AC_PATH_PROG(PDFROFF, [pdfroff])
1292 AC_PATH_PROG(ZIP, [zip])
1293 AC_PATH_PROG(GO, [go])
1294 AC_PATH_PROGS(OCAMLFIND, [ocamlfind])
1295 AC_PATH_PROGS(GAS, [gas as])
1297 dnl Get the version of the linker in use.
1300 dnl Determine whether the linker supports the -R option.
1303 dnl Determine whether the compiler supports the -rdynamic option.
1304 AC_LINK_EXPORT_DYNAMIC
1306 dnl Determine whether the linker supports the --version-script option.
1307 AC_LINK_VERSION_SCRIPT
1309 AC_CHECK_HEADERS([errno.h])
1311 case "$llvm_cv_os_type" in
1312 Cygwin|MingW|Win32) llvm_shlib_ext=.dll ;;
1313 Darwin) llvm_shlib_ext=.dylib ;;
1314 *) llvm_shlib_ext=.so ;;
1317 AC_DEFINE_UNQUOTED([LTDL_SHLIB_EXT], ["$llvm_shlib_ext"], [The shared library extension])
1319 AC_MSG_CHECKING([tool compatibility])
1321 dnl Ensure that compilation tools are GCC or a GNU compatible compiler such as
1322 dnl ICC; we use GCC specific options in the makefiles so the compiler needs
1323 dnl to support those options.
1324 dnl "icc" emits gcc signatures
1325 dnl "icc -no-gcc" emits no gcc signature BUT is still compatible
1337 if test "$GCC" != "yes" && test "$ICC" != "yes"
1339 AC_MSG_ERROR([gcc|icc required but not found])
1342 dnl Ensure that compilation tools are compatible with GCC extensions
1343 if test "$GXX" != "yes" && test "$IXX" != "yes"
1345 AC_MSG_ERROR([g++|clang++|icc required but not found])
1348 dnl Verify that GCC is version 3.0 or higher
1349 if test "$GCC" = "yes"
1354 #if !defined(__GNUC__) || __GNUC__ < 3
1355 #error Unsupported GCC version
1359 [], [AC_MSG_ERROR([gcc 3.x required, but you have a lower version])])
1362 dnl Check for GNU Make. We use its extensions, so don't build without it
1363 if test -z "$llvm_cv_gnu_make_command"
1365 AC_MSG_ERROR([GNU Make required but not found])
1368 dnl Tool compatibility is okay if we make it here.
1371 dnl Check optional compiler flags.
1372 AC_MSG_CHECKING([optional compiler flags])
1373 CXX_FLAG_CHECK(NO_VARIADIC_MACROS, [-Wno-variadic-macros])
1374 CXX_FLAG_CHECK(NO_MISSING_FIELD_INITIALIZERS, [-Wno-missing-field-initializers])
1375 CXX_FLAG_CHECK(COVERED_SWITCH_DEFAULT, [-Wcovered-switch-default])
1377 dnl GCC's potential uninitialized use analysis is weak and presents lots of
1378 dnl false positives, so disable it.
1380 NO_MAYBE_UNINITIALIZED=
1381 if test "$GXX" = "yes"
1383 CXX_FLAG_CHECK(NO_MAYBE_UNINITIALIZED, [-Wno-maybe-uninitialized])
1384 dnl gcc 4.7 introduced -Wmaybe-uninitialized to distinguish cases which are
1385 dnl known to be uninitialized from cases which might be uninitialized. We
1386 dnl still want to catch the first kind of errors.
1387 if test -z "$NO_MAYBE_UNINITIALIZED"
1389 CXX_FLAG_CHECK(NO_UNINITIALIZED, [-Wno-uninitialized])
1393 dnl Check for misbehaving -Wcomment (gcc-4.7 has this) and maybe add
1394 dnl -Wno-comment to the flags.
1396 llvm_cv_old_cxxflags="$CXXFLAGS"
1397 CXXFLAGS="$CXXFLAGS -Wcomment -Werror"
1400 AC_LANG_SOURCE([[// Comment \o\
1402 int main() { return 0; }
1406 no_comment=-Wno-comment
1409 AC_SUBST(NO_COMMENT, [$no_comment])
1410 CXXFLAGS="$llvm_cv_old_cxxflags"
1412 AC_MSG_RESULT([$NO_VARIADIC_MACROS $NO_MISSING_FIELD_INITIALIZERS $COVERED_SWITCH_DEFAULT $NO_UNINITIALIZED $NO_MAYBE_UNINITIALIZED $NO_COMMENT])
1414 AC_ARG_WITH([python],
1415 [AS_HELP_STRING([--with-python], [path to python])],
1416 [PYTHON="$withval"])
1418 if test -n "$PYTHON" && test -x "$PYTHON" ; then
1419 AC_MSG_CHECKING([for python])
1420 AC_MSG_RESULT([user defined: $with_python])
1422 if test -n "$PYTHON" ; then
1423 AC_MSG_WARN([specified python ($PYTHON) is not usable, searching path])
1426 AC_PATH_PROG([PYTHON], [python python2 python27],
1427 [AC_MSG_RESULT([not found])
1428 AC_MSG_ERROR([could not find python 2.7 or higher])])
1431 AC_MSG_CHECKING([for python >= 2.7])
1432 ac_python_version=`$PYTHON -V 2>&1 | cut -d' ' -f2`
1433 ac_python_version_major=`echo $ac_python_version | cut -d'.' -f1`
1434 ac_python_version_minor=`echo $ac_python_version | cut -d'.' -f2`
1435 ac_python_version_patch=`echo $ac_python_version | cut -d'.' -f3`
1436 if test "$ac_python_version_major" -gt "2" || \
1437 (test "$ac_python_version_major" -eq "2" && \
1438 test "$ac_python_version_minor" -ge "7") ; then
1439 AC_MSG_RESULT([$PYTHON ($ac_python_version)])
1441 AC_MSG_RESULT([not found])
1442 AC_MSG_FAILURE([found python $ac_python_version ($PYTHON); required >= 2.7])
1445 dnl===-----------------------------------------------------------------------===
1447 dnl=== SECTION 5: Check for libraries
1449 dnl===-----------------------------------------------------------------------===
1452 if test "$llvm_cv_os_type" = "MingW" ; then
1453 AC_CHECK_LIB(imagehlp, main)
1454 AC_CHECK_LIB(psapi, main)
1455 AC_CHECK_LIB(shell32, main)
1458 dnl dlopen() is required for plugin support.
1459 AC_SEARCH_LIBS(dlopen,dl,LLVM_DEFINE_SUBST([HAVE_DLOPEN],[1],
1460 [Define if dlopen() is available on this platform.]),
1461 AC_MSG_WARN([dlopen() not found - disabling plugin support]))
1463 dnl Search for the clock_gettime() function. Note that we rely on the POSIX
1464 dnl macros to detect whether clock_gettime is available, this just finds the
1465 dnl right libraries to link with.
1466 AC_SEARCH_LIBS(clock_gettime,rt)
1468 dnl The curses library is optional; used for querying terminal info
1469 if test "$llvm_cv_enable_terminfo" = "yes" ; then
1470 dnl We need the has_color functionality in curses for it to be useful.
1471 AC_SEARCH_LIBS(setupterm,tinfo terminfo curses ncurses ncursesw,
1472 LLVM_DEFINE_SUBST([HAVE_TERMINFO],[1],
1473 [Define if the setupterm() function is supported this platform.]))
1476 dnl The libedit library is optional; used by lib/LineEditor
1477 if test "$llvm_cv_enable_libedit" = "yes" ; then
1478 AC_SEARCH_LIBS(el_init,edit,
1479 AC_DEFINE([HAVE_LIBEDIT],[1],
1480 [Define if libedit is available on this platform.]))
1483 dnl libffi is optional; used to call external functions from the interpreter
1484 if test "$llvm_cv_enable_libffi" = "yes" ; then
1485 AC_SEARCH_LIBS(ffi_call,ffi,AC_DEFINE([HAVE_FFI_CALL],[1],
1486 [Define if libffi is available on this platform.]),
1487 AC_MSG_ERROR([libffi not found - configure without --enable-libffi to compile without it]))
1490 dnl mallinfo is optional; the code can compile (minus features) without it
1491 AC_SEARCH_LIBS(mallinfo,malloc,AC_DEFINE([HAVE_MALLINFO],[1],
1492 [Define if mallinfo() is available on this platform.]))
1494 dnl pthread locking functions are optional - but llvm will not be thread-safe
1496 if test "$LLVM_ENABLE_THREADS" -eq 1 && test "$ENABLE_PTHREADS" -eq 1 ; then
1497 AC_CHECK_LIB(pthread, pthread_mutex_init)
1498 AC_SEARCH_LIBS(pthread_mutex_lock,pthread,
1499 AC_DEFINE([HAVE_PTHREAD_MUTEX_LOCK],[1],
1500 [Have pthread_mutex_lock]))
1501 AC_SEARCH_LIBS(pthread_rwlock_init,pthread,
1502 AC_DEFINE([HAVE_PTHREAD_RWLOCK_INIT],[1],
1503 [Have pthread_rwlock_init]))
1504 AC_SEARCH_LIBS(pthread_getspecific,pthread,
1505 AC_DEFINE([HAVE_PTHREAD_GETSPECIFIC],[1],
1506 [Have pthread_getspecific]))
1509 dnl zlib is optional; used for compression/uncompression
1510 if test "$LLVM_ENABLE_ZLIB" -eq 1 ; then
1511 AC_CHECK_LIB(z, compress2)
1514 dnl Allow OProfile support for JIT output.
1515 AC_ARG_WITH(oprofile,
1516 AS_HELP_STRING([--with-oprofile=<prefix>],
1517 [Tell OProfile >= 0.9.4 how to symbolize JIT output]),
1519 AC_SUBST(USE_OPROFILE, [1])
1521 /usr|yes) llvm_cv_oppath=/usr/lib/oprofile ;;
1523 AC_SUBST(USE_OPROFILE, [0]) ;;
1524 *) llvm_cv_oppath="${withval}/lib/oprofile"
1525 CPPFLAGS="-I${withval}/include";;
1527 case $llvm_cv_os_type in
1529 if test -n "$llvm_cv_oppath" ; then
1530 LIBS="$LIBS -lopagent -L${llvm_cv_oppath} -Wl,-rpath,${llvm_cv_oppath}"
1531 dnl Work around http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=537744:
1532 dnl libbfd is not included properly in libopagent in some Debian
1533 dnl versions. If libbfd isn't found at all, we assume opagent works
1535 AC_SEARCH_LIBS(bfd_init, bfd, [], [])
1536 AC_SEARCH_LIBS(op_open_agent, opagent, [], [
1537 echo "Error! You need to have libopagent around."
1540 AC_CHECK_HEADER([opagent.h], [], [
1541 echo "Error! You need to have opagent.h around."
1546 AC_MSG_ERROR([OProfile support is available on Linux only.]) ;;
1550 AC_SUBST(USE_OPROFILE, [0])
1552 AC_DEFINE_UNQUOTED([LLVM_USE_OPROFILE],$USE_OPROFILE,
1553 [Define if we have the oprofile JIT-support library])
1555 dnl Enable support for Intel JIT Events API.
1556 AC_ARG_WITH(intel-jitevents,
1557 AS_HELP_STRING([--with-intel-jitevents Notify Intel JIT profiling API of generated code]),
1560 yes) AC_SUBST(USE_INTEL_JITEVENTS,[1]);;
1561 no) AC_SUBST(USE_INTEL_JITEVENTS,[0]);;
1562 *) AC_MSG_ERROR([Invalid setting for --with-intel-jitevents. Use "yes" or "no"]);;
1565 case $llvm_cv_os_type in
1566 Linux|Win32|Cygwin|MingW) ;;
1567 *) AC_MSG_ERROR([Intel JIT API support is available on Linux and Windows only.]);;
1570 case "$llvm_cv_target_arch" in
1572 *) AC_MSG_ERROR([Target architecture $llvm_cv_target_arch does not support Intel JIT Events API.]);;
1576 AC_SUBST(USE_INTEL_JITEVENTS, [0])
1578 AC_DEFINE_UNQUOTED([LLVM_USE_INTEL_JITEVENTS],$USE_INTEL_JITEVENTS,
1579 [Define if we have the Intel JIT API runtime support library])
1581 dnl Check for libxml2
1582 dnl Right now we're just checking for the existence, we could also check for a
1583 dnl particular version via --version on xml2-config
1584 AC_CHECK_PROGS(XML2CONFIG, xml2-config)
1586 AC_MSG_CHECKING(for libxml2 includes)
1587 if test "x$XML2CONFIG" = "x"; then
1588 AC_MSG_RESULT(xml2-config not found)
1590 LIBXML2_INC=`$XML2CONFIG --cflags`
1591 AC_MSG_RESULT($LIBXML2_INC)
1592 AC_CHECK_LIB(xml2, xmlReadFile,[AC_DEFINE([CLANG_HAVE_LIBXML],1,[Define if we have libxml2])
1593 LIBXML2_LIBS="-lxml2"])
1595 AC_SUBST(LIBXML2_LIBS)
1596 AC_SUBST(LIBXML2_INC)
1598 dnl===-----------------------------------------------------------------------===
1600 dnl=== SECTION 6: Check for header files
1602 dnl===-----------------------------------------------------------------------===
1604 dnl First, use autoconf provided macros for specific headers that we need
1605 dnl We don't check for ancient stuff or things that are guaranteed to be there
1606 dnl by the C++ standard. We always use the <cfoo> versions of <foo.h> C headers.
1607 dnl Generally we're looking for POSIX headers.
1609 AC_HEADER_MMAP_ANONYMOUS
1615 dnl size_t must be defined before including cxxabi.h on FreeBSD 10.0.
1616 AC_CHECK_HEADERS([cxxabi.h], [], [],
1617 [#include <stddef.h>
1621 AC_CHECK_HEADERS([dlfcn.h execinfo.h fcntl.h inttypes.h link.h])
1622 AC_CHECK_HEADERS([malloc.h setjmp.h signal.h stdint.h termios.h unistd.h])
1623 AC_CHECK_HEADERS([utime.h])
1624 AC_CHECK_HEADERS([sys/mman.h sys/param.h sys/resource.h sys/time.h sys/uio.h])
1625 AC_CHECK_HEADERS([sys/ioctl.h malloc/malloc.h mach/mach.h])
1626 AC_CHECK_HEADERS([valgrind/valgrind.h])
1627 AC_CHECK_HEADERS([fenv.h])
1628 AC_CHECK_DECLS([FE_ALL_EXCEPT, FE_INEXACT], [], [], [[#include <fenv.h>]])
1629 if test "$LLVM_ENABLE_THREADS" -eq 1 && test "$ENABLE_PTHREADS" -eq 1 ; then
1630 AC_CHECK_HEADERS(pthread.h,
1631 AC_SUBST(HAVE_PTHREAD, 1),
1632 AC_SUBST(HAVE_PTHREAD, 0))
1634 AC_SUBST(HAVE_PTHREAD, 0)
1636 if test "$LLVM_ENABLE_ZLIB" -eq 1 ; then
1637 AC_CHECK_HEADERS(zlib.h,
1638 AC_SUBST(HAVE_LIBZ, 1),
1639 AC_SUBST(HAVE_LIBZ, 0))
1641 AC_SUBST(HAVE_LIBZ, 0)
1644 dnl Try to find ffi.h.
1645 if test "$llvm_cv_enable_libffi" = "yes" ; then
1646 AC_CHECK_HEADERS([ffi.h ffi/ffi.h])
1649 dnl Try to find Darwin specific crash reporting libraries.
1650 AC_CHECK_HEADERS([CrashReporterClient.h])
1652 dnl Try to find Darwin specific crash reporting global.
1653 AC_MSG_CHECKING([__crashreporter_info__])
1657 extern const char *__crashreporter_info__;
1659 __crashreporter_info__ = "test";
1665 AC_MSG_RESULT([yes])
1666 AC_DEFINE([HAVE_CRASHREPORTER_INFO], [1], [can use __crashreporter_info__])
1670 AC_DEFINE([HAVE_CRASHREPORTER_INFO], [0], [can use __crashreporter_info__])
1673 dnl===-----------------------------------------------------------------------===
1675 dnl=== SECTION 7: Check for types and structures
1677 dnl===-----------------------------------------------------------------------===
1682 AC_DEFINE_UNQUOTED([RETSIGTYPE],[void],[Define as the return type of signal handlers (`int' or `void').])
1684 AC_CHECK_TYPES([int64_t],,AC_MSG_ERROR([Type int64_t required but not found]))
1685 AC_CHECK_TYPES([uint64_t],,
1686 AC_CHECK_TYPES([u_int64_t],,
1687 AC_MSG_ERROR([Type uint64_t or u_int64_t required but not found])))
1689 dnl===-----------------------------------------------------------------------===
1691 dnl=== SECTION 8: Check for specific functions needed
1693 dnl===-----------------------------------------------------------------------===
1695 AC_CHECK_FUNCS([backtrace ceilf floorf roundf rintf nearbyintf getcwd ])
1696 AC_CHECK_FUNCS([powf fmodf strtof round ])
1697 AC_CHECK_FUNCS([log log2 log10 exp exp2])
1698 AC_CHECK_FUNCS([getpagesize getrusage getrlimit setrlimit gettimeofday ])
1699 AC_CHECK_FUNCS([isatty mkdtemp mkstemp ])
1700 AC_CHECK_FUNCS([mktemp posix_spawn pread realpath sbrk setrlimit ])
1701 AC_CHECK_FUNCS([strerror strerror_r setenv ])
1702 AC_CHECK_FUNCS([strtoll strtoq sysconf malloc_zone_statistics ])
1703 AC_CHECK_FUNCS([setjmp longjmp sigsetjmp siglongjmp writev])
1704 AC_CHECK_FUNCS([futimes futimens])
1708 dnl Check for arc4random accessible via AC_INCLUDES_DEFAULT.
1709 AC_CHECK_DECLS([arc4random])
1711 dnl Check the declaration "Secure API" on Windows environments.
1712 AC_CHECK_DECLS([strerror_s])
1714 dnl Check symbols in libgcc.a for JIT on Mingw.
1715 if test "$llvm_cv_os_type" = "MingW" ; then
1716 AC_CHECK_LIB(gcc,_alloca,AC_DEFINE([HAVE__ALLOCA],[1],[Have host's _alloca]))
1717 AC_CHECK_LIB(gcc,__alloca,AC_DEFINE([HAVE___ALLOCA],[1],[Have host's __alloca]))
1718 AC_CHECK_LIB(gcc,__chkstk,AC_DEFINE([HAVE___CHKSTK],[1],[Have host's __chkstk]))
1719 AC_CHECK_LIB(gcc,__chkstk_ms,AC_DEFINE([HAVE___CHKSTK_MS],[1],[Have host's __chkstk_ms]))
1720 AC_CHECK_LIB(gcc,___chkstk,AC_DEFINE([HAVE____CHKSTK],[1],[Have host's ___chkstk]))
1721 AC_CHECK_LIB(gcc,___chkstk_ms,AC_DEFINE([HAVE____CHKSTK_MS],[1],[Have host's ___chkstk_ms]))
1723 AC_CHECK_LIB(gcc,__ashldi3,AC_DEFINE([HAVE___ASHLDI3],[1],[Have host's __ashldi3]))
1724 AC_CHECK_LIB(gcc,__ashrdi3,AC_DEFINE([HAVE___ASHRDI3],[1],[Have host's __ashrdi3]))
1725 AC_CHECK_LIB(gcc,__divdi3,AC_DEFINE([HAVE___DIVDI3],[1],[Have host's __divdi3]))
1726 AC_CHECK_LIB(gcc,__fixdfdi,AC_DEFINE([HAVE___FIXDFDI],[1],[Have host's __fixdfdi]))
1727 AC_CHECK_LIB(gcc,__fixsfdi,AC_DEFINE([HAVE___FIXSFDI],[1],[Have host's __fixsfdi]))
1728 AC_CHECK_LIB(gcc,__floatdidf,AC_DEFINE([HAVE___FLOATDIDF],[1],[Have host's __floatdidf]))
1729 AC_CHECK_LIB(gcc,__lshrdi3,AC_DEFINE([HAVE___LSHRDI3],[1],[Have host's __lshrdi3]))
1730 AC_CHECK_LIB(gcc,__moddi3,AC_DEFINE([HAVE___MODDI3],[1],[Have host's __moddi3]))
1731 AC_CHECK_LIB(gcc,__udivdi3,AC_DEFINE([HAVE___UDIVDI3],[1],[Have host's __udivdi3]))
1732 AC_CHECK_LIB(gcc,__umoddi3,AC_DEFINE([HAVE___UMODDI3],[1],[Have host's __umoddi3]))
1734 AC_CHECK_LIB(gcc,__main,AC_DEFINE([HAVE___MAIN],[1],[Have host's __main]))
1735 AC_CHECK_LIB(gcc,__cmpdi2,AC_DEFINE([HAVE___CMPDI2],[1],[Have host's __cmpdi2]))
1738 dnl Check Win32 API EnumerateLoadedModules.
1739 if test "$llvm_cv_os_type" = "MingW" ; then
1740 AC_MSG_CHECKING([whether EnumerateLoadedModules() accepts new decl])
1744 #include <windows.h>
1745 #include <imagehlp.h>
1746 extern void foo(PENUMLOADED_MODULES_CALLBACK);
1747 extern void foo(BOOL(CALLBACK*)(PCSTR,ULONG_PTR,ULONG,PVOID));
1751 AC_MSG_RESULT([yes])
1752 llvm_cv_win32_elmcb_pcstr="PCSTR"
1756 llvm_cv_win32_elmcb_pcstr="PSTR"
1758 AC_DEFINE_UNQUOTED([WIN32_ELMCB_PCSTR],$llvm_cv_win32_elmcb_pcstr,[Type of 1st arg on ELM Callback])
1761 dnl Check for variations in the Standard C++ library and STL. These macros are
1762 dnl provided by LLVM in the autoconf/m4 directory.
1766 dnl Check for mmap support.We also need to know if /dev/zero is required to
1767 dnl be opened for allocating RWX memory.
1768 dnl Make sure we aren't attempting to configure for an unknown system
1769 if test "$llvm_cv_platform_type" = "Unix" ; then
1772 AC_NEED_DEV_ZERO_FOR_MMAP
1774 if test "$ac_cv_func_mmap_fixed_mapped" = "no"
1776 AC_MSG_WARN([mmap() of a fixed address required but not supported])
1778 if test "$ac_cv_func_mmap_file" = "no"
1780 AC_MSG_WARN([mmap() of files required but not found])
1784 dnl atomic builtins are required for threading support.
1785 AC_MSG_CHECKING(for GCC atomic builtins)
1786 dnl Since we'll be using these atomic builtins in C++ files we should test
1787 dnl the C++ compiler.
1793 volatile unsigned long val = 1;
1794 __sync_synchronize();
1795 __sync_val_compare_and_swap(&val, 1, 0);
1796 __sync_add_and_fetch(&val, 1);
1797 __sync_sub_and_fetch(&val, 1);
1803 AC_MSG_RESULT([yes])
1804 AC_DEFINE([LLVM_HAS_ATOMICS], [1], [Has gcc/MSVC atomic intrinsics])
1808 AC_DEFINE([LLVM_HAS_ATOMICS], [0], [Has gcc/MSVC atomic intrinsics])
1809 AC_MSG_WARN([LLVM will be built thread-unsafe because atomic builtins are missing])
1813 dnl===-----------------------------------------------------------------------===
1815 dnl=== SECTION 9: Additional checks, variables, etc.
1817 dnl===-----------------------------------------------------------------------===
1819 dnl Handle 32-bit linux systems running a 64-bit kernel.
1820 dnl This has to come after section 4 because it invokes the compiler.
1821 if test "$llvm_cv_os_type" = "Linux" -a "$llvm_cv_target_arch" = "x86_64" ; then
1823 if test "$llvm_cv_linux_mixed" = "yes"; then
1824 llvm_cv_target_arch="x86"
1829 dnl Check whether __dso_handle is present
1830 AC_CHECK_FUNCS([__dso_handle])
1832 dnl Propagate the shared library extension that the libltdl checks did to
1833 dnl the Makefiles so we can use it there too
1834 AC_SUBST(SHLIBEXT,$llvm_shlib_ext)
1836 dnl Translate the various configuration directories and other basic
1837 dnl information into substitutions that will end up in Makefile.config.in
1838 dnl that these configured values can be used by the makefiles
1839 if test "${prefix}" = "NONE" ; then
1842 eval LLVM_PREFIX="${prefix}";
1843 eval LLVM_BINDIR="${prefix}/bin";
1844 eval LLVM_DATADIR="${prefix}/share/llvm";
1845 eval LLVM_DOCSDIR="${prefix}/share/doc/llvm";
1846 eval LLVM_ETCDIR="${prefix}/etc/llvm";
1847 eval LLVM_INCLUDEDIR="${prefix}/include";
1848 eval LLVM_INFODIR="${prefix}/info";
1849 eval LLVM_MANDIR="${prefix}/man";
1850 LLVM_CONFIGTIME=`date`
1851 AC_SUBST(LLVM_PREFIX)
1852 AC_SUBST(LLVM_BINDIR)
1853 AC_SUBST(LLVM_DATADIR)
1854 AC_SUBST(LLVM_DOCSDIR)
1855 AC_SUBST(LLVM_ETCDIR)
1856 AC_SUBST(LLVM_INCLUDEDIR)
1857 AC_SUBST(LLVM_INFODIR)
1858 AC_SUBST(LLVM_MANDIR)
1859 AC_SUBST(LLVM_CONFIGTIME)
1861 dnl Disable embedding timestamps in the build directory, with ENABLE_TIMESTAMPS.
1862 if test "${ENABLE_TIMESTAMPS}" = "0"; then
1863 LLVM_CONFIGTIME="(timestamp not enabled)"
1866 dnl Place the various directories into the config.h file as #defines so that we
1867 dnl can know about the installation paths within LLVM.
1868 AC_DEFINE_UNQUOTED(LLVM_PREFIX,"$LLVM_PREFIX",
1869 [Installation prefix directory])
1870 AC_DEFINE_UNQUOTED(LLVM_BINDIR, "$LLVM_BINDIR",
1871 [Installation directory for binary executables])
1872 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DATADIR",
1873 [Installation directory for data files])
1874 AC_DEFINE_UNQUOTED(LLVM_DOCSDIR, "$LLVM_DOCSDIR",
1875 [Installation directory for documentation])
1876 AC_DEFINE_UNQUOTED(LLVM_ETCDIR, "$LLVM_ETCDIR",
1877 [Installation directory for config files])
1878 AC_DEFINE_UNQUOTED(LLVM_INCLUDEDIR, "$LLVM_INCLUDEDIR",
1879 [Installation directory for include files])
1880 AC_DEFINE_UNQUOTED(LLVM_INFODIR, "$LLVM_INFODIR",
1881 [Installation directory for .info files])
1882 AC_DEFINE_UNQUOTED(LLVM_MANDIR, "$LLVM_MANDIR",
1883 [Installation directory for man pages])
1884 AC_DEFINE_UNQUOTED(LLVM_CONFIGTIME, "$LLVM_CONFIGTIME",
1885 [Time at which LLVM was configured])
1886 AC_DEFINE_UNQUOTED(LLVM_HOST_TRIPLE, "$host",
1887 [Host triple LLVM will be executed on])
1888 AC_DEFINE_UNQUOTED(LLVM_DEFAULT_TARGET_TRIPLE, "$target",
1889 [Target triple LLVM will generate code for by default])
1891 dnl Determine which bindings to build.
1892 if test "$BINDINGS_TO_BUILD" = auto ; then
1893 BINDINGS_TO_BUILD=""
1894 if test "x$OCAMLFIND" != x ; then
1895 BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD"
1897 if test "x$GO" != x ; then
1898 if $GO run ${srcdir}/bindings/go/conftest.go ; then
1899 BINDINGS_TO_BUILD="go $BINDINGS_TO_BUILD"
1903 AC_SUBST(BINDINGS_TO_BUILD,$BINDINGS_TO_BUILD)
1905 dnl Do any work necessary to ensure that bindings have what they need.
1906 binding_prereqs_failed=0
1907 for a_binding in $BINDINGS_TO_BUILD ; do
1908 case "$a_binding" in
1910 if test "x$OCAMLFIND" = x ; then
1911 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlfind not found. Try configure OCAMLFIND=/path/to/ocamlfind])
1912 binding_prereqs_failed=1
1915 if $OCAMLFIND opt -version >/dev/null 2>/dev/null ; then
1920 AC_SUBST(HAVE_OCAMLOPT)
1922 if ! $OCAMLFIND query ctypes >/dev/null 2>/dev/null; then
1923 AC_MSG_WARN([--enable-bindings=ocaml specified, but ctypes is not installed])
1924 binding_prereqs_failed=1
1927 if $OCAMLFIND query oUnit >/dev/null 2>/dev/null; then
1931 AC_MSG_WARN([--enable-bindings=ocaml specified, but OUnit 2 is not installed. Tests will not run])
1932 dnl oUnit is optional!
1934 AC_SUBST(HAVE_OCAML_OUNIT)
1936 if test "x$with_ocaml_libdir" != xauto ; then
1937 AC_SUBST(OCAML_LIBDIR,$with_ocaml_libdir)
1939 ocaml_stdlib="`"$OCAMLFIND" ocamlc -where`"
1940 if test "$LLVM_PREFIX" '<' "$ocaml_stdlib" -a "$ocaml_stdlib" '<' "$LLVM_PREFIX~"
1942 # ocaml stdlib is beneath our prefix; use stdlib
1943 AC_SUBST(OCAML_LIBDIR,$ocaml_stdlib)
1945 # ocaml stdlib is outside our prefix; use libdir/ocaml
1946 AC_SUBST(OCAML_LIBDIR,${prefix}/lib/ocaml)
1951 if test "x$GO" = x ; then
1952 AC_MSG_WARN([--enable-bindings=go specified, but go not found. Try configure GO=/path/to/go])
1953 binding_prereqs_failed=1
1955 if $GO run ${srcdir}/bindings/go/conftest.go ; then
1958 AC_MSG_WARN([--enable-bindings=go specified, but need at least Go 1.2. Try configure GO=/path/to/go])
1959 binding_prereqs_failed=1
1965 if test "$binding_prereqs_failed" = 1 ; then
1966 AC_MSG_ERROR([Prequisites for bindings not satisfied. Fix them or use configure --disable-bindings.])
1969 dnl Determine whether the compiler supports -fvisibility-inlines-hidden.
1970 AC_CXX_USE_VISIBILITY_INLINES_HIDDEN
1972 dnl Determine linker rpath flag
1973 if test "$llvm_cv_link_use_r" = "yes" ; then
1980 dnl Determine linker rdynamic flag
1981 if test "$llvm_cv_link_use_export_dynamic" = "yes" ; then
1982 RDYNAMIC="-rdynamic"
1988 dnl===-----------------------------------------------------------------------===
1990 dnl=== SECTION 10: Specify the output files and generate it
1992 dnl===-----------------------------------------------------------------------===
1994 dnl Configure header files
1995 dnl WARNING: dnl If you add or remove any of the following config headers, then
1996 dnl you MUST also update Makefile so that the variable FilesToConfig
1997 dnl contains the same list of files as AC_CONFIG_HEADERS below. This ensures the
1998 dnl files can be updated automatically when their *.in sources change.
1999 AC_CONFIG_HEADERS([include/llvm/Config/config.h include/llvm/Config/llvm-config.h])
2000 AH_TOP([#ifndef CONFIG_H
2004 AC_CONFIG_FILES([include/llvm/Config/Targets.def])
2005 AC_CONFIG_FILES([include/llvm/Config/AsmPrinters.def])
2006 AC_CONFIG_FILES([include/llvm/Config/AsmParsers.def])
2007 AC_CONFIG_FILES([include/llvm/Config/Disassemblers.def])
2008 AC_CONFIG_HEADERS([include/llvm/Support/DataTypes.h])
2010 dnl Configure the makefile's configuration data
2011 AC_CONFIG_FILES([Makefile.config])
2013 dnl Configure the RPM spec file for LLVM
2014 AC_CONFIG_FILES([llvm.spec])
2016 dnl Configure doxygen's configuration file
2017 AC_CONFIG_FILES([docs/doxygen.cfg])
2019 dnl Configure clang, if present
2020 if test "${clang_src_root}" = ""; then
2021 clang_src_root="$srcdir/tools/clang"
2023 if test -f ${clang_src_root}/README.txt; then
2024 dnl Clang supports build systems which use the multilib libdir suffix.
2025 dnl The autoconf system doesn't support this so stub out that variable.
2026 AC_DEFINE_UNQUOTED(CLANG_LIBDIR_SUFFIX,"",
2027 [Multilib suffix for libdir.])
2029 dnl Use variables to stay under 80 columns.
2030 configh="include/clang/Config/config.h"
2031 doxy="docs/doxygen.cfg"
2032 AC_CONFIG_HEADERS([tools/clang/${configh}:${clang_src_root}/${configh}.in])
2033 AC_CONFIG_FILES([tools/clang/${doxy}:${clang_src_root}/${doxy}.in])
2036 dnl OCaml findlib META file
2037 AC_CONFIG_FILES([bindings/ocaml/llvm/META.llvm])
2039 dnl Add --program-prefix value to Makefile.rules. Already an ARG variable.
2040 test "x$program_prefix" = "xNONE" && program_prefix=""
2041 AC_SUBST([program_prefix])
2044 dnl Do special configuration of Makefiles
2045 AC_CONFIG_COMMANDS([setup],,[llvm_src="${srcdir}"])
2046 AC_CONFIG_MAKEFILE(Makefile)
2047 AC_CONFIG_MAKEFILE(Makefile.common)
2048 AC_CONFIG_MAKEFILE(examples/Makefile)
2049 AC_CONFIG_MAKEFILE(lib/Makefile)
2050 AC_CONFIG_MAKEFILE(test/Makefile)
2051 AC_CONFIG_MAKEFILE(test/Makefile.tests)
2052 AC_CONFIG_MAKEFILE(unittests/Makefile)
2053 AC_CONFIG_MAKEFILE(tools/Makefile)
2054 AC_CONFIG_MAKEFILE(utils/Makefile)
2055 AC_CONFIG_MAKEFILE(projects/Makefile)
2056 AC_CONFIG_MAKEFILE(bindings/Makefile)
2057 AC_CONFIG_MAKEFILE(bindings/ocaml/Makefile.ocaml)
2059 dnl Finally, crank out the output