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 Quit if it is an in-source build
77 if test ${srcdir} == "." ; then
78 AC_MSG_ERROR([In-source builds are discouraged. Configure from a separate build directory.])
81 dnl Default to empty (i.e. assigning the null string to) CFLAGS and CXXFLAGS,
82 dnl instead of the autoconf default (for example, '-g -O2' for CC=gcc).
86 dnl We need to check for the compiler up here to avoid anything else
87 dnl starting with a different one.
89 AC_PROG_CXX(clang++ g++)
92 dnl If CXX is Clang, check that it can find and parse C++ standard library
94 if test "$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 ./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 $llvm_cv_platform_type in
410 AC_DEFINE([LLVM_ON_UNIX],[1],[Define if this is Unixish platform])
411 AC_SUBST(LLVM_ON_UNIX,[1])
412 AC_SUBST(LLVM_ON_WIN32,[0])
415 AC_DEFINE([LLVM_ON_WIN32],[1],[Define if this is Win32ish platform])
416 AC_SUBST(LLVM_ON_UNIX,[0])
417 AC_SUBST(LLVM_ON_WIN32,[1])
421 dnl Determine what our target architecture is and configure accordingly.
422 dnl This will allow Makefiles to make a distinction between the hardware and
424 AC_CACHE_CHECK([target architecture],[llvm_cv_target_arch],
426 i?86-*) llvm_cv_target_arch="x86" ;;
427 amd64-* | x86_64-*) llvm_cv_target_arch="x86_64" ;;
428 sparc*-*) llvm_cv_target_arch="Sparc" ;;
429 powerpc*-*) llvm_cv_target_arch="PowerPC" ;;
430 arm64*-*) llvm_cv_target_arch="AArch64" ;;
431 arm*-*) llvm_cv_target_arch="ARM" ;;
432 aarch64*-*) llvm_cv_target_arch="AArch64" ;;
433 mips-* | mips64-*) llvm_cv_target_arch="Mips" ;;
434 mipsel-* | mips64el-*) llvm_cv_target_arch="Mips" ;;
435 xcore-*) llvm_cv_target_arch="XCore" ;;
436 msp430-*) llvm_cv_target_arch="MSP430" ;;
437 hexagon-*) llvm_cv_target_arch="Hexagon" ;;
438 nvptx-*) llvm_cv_target_arch="NVPTX" ;;
439 s390x-*) llvm_cv_target_arch="SystemZ" ;;
440 *) llvm_cv_target_arch="Unknown" ;;
443 if test "$llvm_cv_target_arch" = "Unknown" ; then
444 AC_MSG_WARN([Configuring LLVM for an unknown target archicture])
447 dnl Determine the LLVM native architecture for the target
448 case "$llvm_cv_target_arch" in
449 x86) LLVM_NATIVE_ARCH="X86" ;;
450 x86_64) LLVM_NATIVE_ARCH="X86" ;;
451 *) LLVM_NATIVE_ARCH="$llvm_cv_target_arch" ;;
454 dnl Define a substitution, ARCH, for the target architecture
455 AC_SUBST(ARCH,$llvm_cv_target_arch)
456 AC_SUBST(LLVM_NATIVE_ARCH,$LLVM_NATIVE_ARCH)
458 dnl Determine what our host architecture.
459 dnl This will allow MCJIT regress tests runs only for supported
462 i?86-*) host_arch="x86" ;;
463 amd64-* | x86_64-*) host_arch="x86_64" ;;
464 sparc*-*) host_arch="Sparc" ;;
465 powerpc*-*) host_arch="PowerPC" ;;
466 arm64*-*) host_arch="AArch64" ;;
467 arm*-*) host_arch="ARM" ;;
468 aarch64*-*) host_arch="AArch64" ;;
469 mips-* | mips64-*) host_arch="Mips" ;;
470 mipsel-* | mips64el-*) host_arch="Mips" ;;
471 xcore-*) host_arch="XCore" ;;
472 msp430-*) host_arch="MSP430" ;;
473 hexagon-*) host_arch="Hexagon" ;;
474 s390x-*) host_arch="SystemZ" ;;
475 *) host_arch="Unknown" ;;
478 if test "$host_arch" = "Unknown" ; then
479 AC_MSG_WARN([Configuring LLVM for an unknown host archicture])
482 AC_SUBST(HOST_ARCH,$host_arch)
484 dnl Check for build platform executable suffix if we're cross-compiling
485 if test "$cross_compiling" = yes; then
486 AC_SUBST(LLVM_CROSS_COMPILING, [1])
488 ac_build_prefix=${build_alias}-
489 AC_CHECK_PROG(BUILD_CXX, ${ac_build_prefix}g++, ${ac_build_prefix}g++)
490 if test -z "$BUILD_CXX"; then
491 AC_CHECK_PROG(BUILD_CXX, g++, g++)
492 if test -z "$BUILD_CXX"; then
493 AC_CHECK_PROG(BUILD_CXX, c++, c++, , , /usr/ucb/c++)
497 AC_SUBST(LLVM_CROSS_COMPILING, [0])
500 dnl Check to see if there's a .svn or .git directory indicating that this
501 dnl build is being done from a checkout. This sets up several defaults for
502 dnl the command line switches. When we build with a checkout directory,
503 dnl we get a debug with assertions turned on. Without, we assume a source
504 dnl release and we get an optimized build without assertions.
505 dnl See --enable-optimized and --enable-assertions below
506 if test -d ".svn" -o -d "${srcdir}/.svn" -o -d ".git" -o -d "${srcdir}/.git"; then
509 AC_SUBST(CVSBUILD,[[CVSBUILD=1]])
515 dnl===-----------------------------------------------------------------------===
517 dnl=== SECTION 3: Command line arguments for the configure script.
519 dnl===-----------------------------------------------------------------------===
521 dnl --enable-libcpp : check whether or not to use libc++ on the command line
522 AC_ARG_ENABLE(libcpp,
523 AS_HELP_STRING([--enable-libcpp],
524 [Use libc++ if available (default is NO)]),,
527 yes) AC_SUBST(ENABLE_LIBCPP,[1]) ;;
528 no) AC_SUBST(ENABLE_LIBCPP,[0]) ;;
529 default) AC_SUBST(ENABLE_LIBCPP,[0]);;
530 *) AC_MSG_ERROR([Invalid setting for --enable-libcpp. Use "yes" or "no"]) ;;
533 dnl Check both GCC and Clang for sufficiently modern versions. These checks can
534 dnl be bypassed by passing a flag if necessary on a platform. We have to do
535 dnl these checks here so that we have the configuration of the standard C++
536 dnl library finished.
537 AC_ARG_ENABLE(compiler-version-checks,
538 AS_HELP_STRING([--enable-compiler-version-checks],
539 [Check the version of the host compiler (default is YES)]),,
546 case "$llvm_cv_cxx_compiler" in
548 AC_MSG_CHECKING([whether Clang is new enough])
549 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
550 #if __clang_major__ < 3 || (__clang_major__ == 3 && __clang_minor__ < 1)
551 #error This version of Clang is too old to build LLVM
554 [AC_MSG_RESULT([yes])],
557 The selected Clang compiler is not new enough to build LLVM. Please upgrade to
558 Clang 3.1. You may pass --disable-compiler-version-checks to configure to
559 bypass these sanity checks.])])
561 dnl Note that libstdc++4.6 is known broken for C++11 builds. The errors
562 dnl are sometimes deeply confusing though. Here we test for an obvious
563 dnl incomplete feature in 4.6's standard library that was completed in
564 dnl 4.7's. We also have to disable this test if 'ENABLE_LIBCPP' is set
565 dnl because the enable flags don't actually fix CXXFLAGS, they rely on
566 dnl that happening in the Makefile.
567 if test "$ENABLE_LIBCPP" -eq 0 ; then
568 AC_MSG_CHECKING([whether Clang will select a modern C++ standard library])
569 llvm_cv_old_cxxflags="$CXXFLAGS"
570 CXXFLAGS="$CXXFLAGS -std=c++0x"
571 AC_LINK_IFELSE([AC_LANG_SOURCE([[
573 std::atomic<float> x(0.0f);
574 int main() { return (float)x; }
576 [AC_MSG_RESULT([yes])],
579 We detected a missing feature in the standard C++ library that was known to be
580 missing in libstdc++4.6 and implemented in libstdc++4.7. There are numerous
581 C++11 problems with 4.6's library, and we don't support GCCs or libstdc++ older
582 than 4.7. You will need to update your system and ensure Clang uses the newer
585 If this error is incorrect or you need to force things to work, you may pass
586 '--disable-compiler-version-checks' to configure to bypass this test.])])
587 CXXFLAGS="$llvm_cv_old_cxxflags"
591 AC_MSG_CHECKING([whether GCC is new enough])
592 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
593 #if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 7)
594 #error This version of GCC is too old to build LLVM
597 [AC_MSG_RESULT([yes])],
600 The selected GCC C++ compiler is not new enough to build LLVM. Please upgrade
601 to GCC 4.7. You may pass --disable-compiler-version-checks to configure to
602 bypass these sanity checks.])])
610 AC_MSG_ERROR([Invalid setting for --enable-compiler-version-checks. Use "yes" or "no"])
614 dnl --enable-cxx1y : check whether or not to use -std=c++1y on the command line
616 AS_HELP_STRING([--enable-cxx1y],
617 [Use c++1y if available (default is NO)]),,
620 yes) AC_SUBST(ENABLE_CXX1Y,[1]) ;;
621 no) AC_SUBST(ENABLE_CXX1Y,[0]) ;;
622 default) AC_SUBST(ENABLE_CXX1Y,[0]);;
623 *) AC_MSG_ERROR([Invalid setting for --enable-cxx1y. Use "yes" or "no"]) ;;
626 dnl --enable-split-dwarf : check whether or not to use -gsplit-dwarf on the command
628 AC_ARG_ENABLE(split-dwarf,
629 AS_HELP_STRING([--enable-split-dwarf],
630 [Use split-dwarf if available (default is NO)]),,
633 yes) AC_SUBST(ENABLE_SPLIT_DWARF,[1]) ;;
634 no) AC_SUBST(ENABLE_SPLIT_DWARF,[0]) ;;
635 default) AC_SUBST(ENABLE_SPLIT_DWARF,[0]);;
636 *) AC_MSG_ERROR([Invalid setting for --enable-split-dwarf. Use "yes" or "no"]) ;;
639 dnl --enable-clang-arcmt: check whether to enable clang arcmt
641 AC_ARG_ENABLE(clang-arcmt,
642 AS_HELP_STRING([--enable-clang-arcmt],
643 [Enable building of clang ARCMT (default is YES)]),
644 clang_arcmt="$enableval",
647 yes) AC_SUBST(ENABLE_CLANG_ARCMT,[1]) ;;
648 no) AC_SUBST(ENABLE_CLANG_ARCMT,[0]) ;;
649 default) AC_SUBST(ENABLE_CLANG_ARCMT,[1]);;
650 *) AC_MSG_ERROR([Invalid setting for --enable-clang-arcmt. Use "yes" or "no"]) ;;
653 dnl --enable-clang-plugin-support: check whether to enable plugins in clang
654 clang_plugin_support="yes"
655 AC_ARG_ENABLE(clang-plugin-support,
656 AS_HELP_STRING([--enable-clang-plugin-support],
657 [Enable plugin support in clang (default is YES)]),
658 clang_plugin_support="$enableval",
661 yes) AC_SUBST(CLANG_PLUGIN_SUPPORT,[1]) ;;
662 no) AC_SUBST(CLANG_PLUGIN_SUPPORT,[0]) ;;
663 default) AC_SUBST(CLANG_PLUGIN_SUPPORT,[1]);;
664 *) AC_MSG_ERROR([Invalid setting for --enable-clang-plugin-support. Use "yes" or "no"]) ;;
667 dnl --enable-clang-static-analyzer: check whether to enable static-analyzer
668 clang_static_analyzer="yes"
669 AC_ARG_ENABLE(clang-static-analyzer,
670 AS_HELP_STRING([--enable-clang-static-analyzer],
671 [Enable building of clang Static Analyzer (default is YES)]),
672 clang_static_analyzer="$enableval",
675 yes) AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[1]) ;;
677 if test ${clang_arcmt} != "no" ; then
678 AC_MSG_ERROR([Cannot enable clang ARC Migration Tool while disabling static analyzer.])
680 AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[0])
682 default) AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[1]);;
683 *) AC_MSG_ERROR([Invalid setting for --enable-clang-static-analyzer. Use "yes" or "no"]) ;;
686 dnl --enable-optimized : check whether they want to do an optimized build:
687 AC_ARG_ENABLE(optimized, AS_HELP_STRING(
688 --enable-optimized,[Compile with optimizations enabled (default is NO)]),,enableval=$optimize)
689 if test ${enableval} = "no" ; then
690 AC_SUBST(ENABLE_OPTIMIZED,[[]])
692 AC_SUBST(ENABLE_OPTIMIZED,[[ENABLE_OPTIMIZED=1]])
695 dnl --enable-profiling : check whether they want to do a profile build:
696 AC_ARG_ENABLE(profiling, AS_HELP_STRING(
697 --enable-profiling,[Compile with profiling enabled (default is NO)]),,enableval="no")
698 if test ${enableval} = "no" ; then
699 AC_SUBST(ENABLE_PROFILING,[[]])
701 AC_SUBST(ENABLE_PROFILING,[[ENABLE_PROFILING=1]])
704 dnl --enable-assertions : check whether they want to turn on assertions or not:
705 AC_ARG_ENABLE(assertions,AS_HELP_STRING(
706 --enable-assertions,[Compile with assertion checks enabled (default is YES)]),, enableval="yes")
707 if test ${enableval} = "yes" ; then
708 AC_SUBST(DISABLE_ASSERTIONS,[[]])
710 AC_SUBST(DISABLE_ASSERTIONS,[[DISABLE_ASSERTIONS=1]])
713 dnl --enable-werror : check whether we want Werror on by default
714 AC_ARG_ENABLE(werror,AS_HELP_STRING(
715 --enable-werror,[Compile with -Werror enabled (default is NO)]),, enableval="no")
717 yes) AC_SUBST(ENABLE_WERROR,[1]) ;;
718 no) AC_SUBST(ENABLE_WERROR,[0]) ;;
719 default) AC_SUBST(ENABLE_WERROR,[0]);;
720 *) AC_MSG_ERROR([Invalid setting for --enable-werror. Use "yes" or "no"]) ;;
723 dnl --enable-expensive-checks : check whether they want to turn on expensive debug checks:
724 AC_ARG_ENABLE(expensive-checks,AS_HELP_STRING(
725 --enable-expensive-checks,[Compile with expensive debug checks enabled (default is NO)]),, enableval="no")
726 if test ${enableval} = "yes" ; then
727 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[ENABLE_EXPENSIVE_CHECKS=1]])
728 AC_SUBST(EXPENSIVE_CHECKS,[[yes]])
730 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[]])
731 AC_SUBST(EXPENSIVE_CHECKS,[[no]])
734 dnl --enable-debug-runtime : should runtime libraries have debug symbols?
735 AC_ARG_ENABLE(debug-runtime,
736 AS_HELP_STRING(--enable-debug-runtime,[Build runtime libs with debug symbols (default is NO)]),,enableval=no)
737 if test ${enableval} = "no" ; then
738 AC_SUBST(DEBUG_RUNTIME,[[]])
740 AC_SUBST(DEBUG_RUNTIME,[[DEBUG_RUNTIME=1]])
743 dnl --enable-debug-symbols : should even optimized compiler libraries
744 dnl have debug symbols?
745 AC_ARG_ENABLE(debug-symbols,
746 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)
747 if test ${enableval} = "no" ; then
748 AC_SUBST(DEBUG_SYMBOLS,[[]])
750 AC_SUBST(DEBUG_SYMBOLS,[[DEBUG_SYMBOLS=1]])
753 dnl --enable-keep-symbols : do not strip installed executables
754 AC_ARG_ENABLE(keep-symbols,
755 AS_HELP_STRING(--enable-keep-symbols,[Do not strip installed executables)]),,enableval=no)
756 if test ${enableval} = "no" ; then
757 AC_SUBST(KEEP_SYMBOLS,[[]])
759 AC_SUBST(KEEP_SYMBOLS,[[KEEP_SYMBOLS=1]])
762 dnl --enable-jit: check whether they want to enable the jit
764 AS_HELP_STRING(--enable-jit,
765 [Enable Just In Time Compiling (default is YES)]),,
767 if test ${enableval} = "no"
771 case "$llvm_cv_target_arch" in
772 x86) AC_SUBST(TARGET_HAS_JIT,1) ;;
773 Sparc) AC_SUBST(TARGET_HAS_JIT,0) ;;
774 PowerPC) AC_SUBST(TARGET_HAS_JIT,1) ;;
775 x86_64) AC_SUBST(TARGET_HAS_JIT,1) ;;
776 ARM) AC_SUBST(TARGET_HAS_JIT,1) ;;
777 Mips) AC_SUBST(TARGET_HAS_JIT,1) ;;
778 XCore) AC_SUBST(TARGET_HAS_JIT,0) ;;
779 MSP430) AC_SUBST(TARGET_HAS_JIT,0) ;;
780 Hexagon) AC_SUBST(TARGET_HAS_JIT,0) ;;
781 NVPTX) AC_SUBST(TARGET_HAS_JIT,0) ;;
782 SystemZ) AC_SUBST(TARGET_HAS_JIT,1) ;;
783 *) AC_SUBST(TARGET_HAS_JIT,0) ;;
787 TARGETS_WITH_JIT="ARM AArch64 Mips PowerPC SystemZ X86"
788 AC_SUBST(TARGETS_WITH_JIT,$TARGETS_WITH_JIT)
790 dnl Allow enablement of building and installing docs
792 AS_HELP_STRING([--enable-docs],
793 [Build documents (default is YES)]),,
796 yes) AC_SUBST(ENABLE_DOCS,[1]) ;;
797 no) AC_SUBST(ENABLE_DOCS,[0]) ;;
798 default) AC_SUBST(ENABLE_DOCS,[1]) ;;
799 *) AC_MSG_ERROR([Invalid setting for --enable-docs. Use "yes" or "no"]) ;;
802 dnl Allow enablement of doxygen generated documentation
803 AC_ARG_ENABLE(doxygen,
804 AS_HELP_STRING([--enable-doxygen],
805 [Build doxygen documentation (default is NO)]),,
808 yes) AC_SUBST(ENABLE_DOXYGEN,[1]) ;;
809 no) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
810 default) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
811 *) AC_MSG_ERROR([Invalid setting for --enable-doxygen. Use "yes" or "no"]) ;;
814 dnl Allow disablement of threads
815 AC_ARG_ENABLE(threads,
816 AS_HELP_STRING([--enable-threads],
817 [Use threads if available (default is YES)]),,
820 yes) AC_SUBST(LLVM_ENABLE_THREADS,[1]) ;;
821 no) AC_SUBST(LLVM_ENABLE_THREADS,[0]) ;;
822 default) AC_SUBST(LLVM_ENABLE_THREADS,[1]) ;;
823 *) AC_MSG_ERROR([Invalid setting for --enable-threads. Use "yes" or "no"]) ;;
825 AC_DEFINE_UNQUOTED([LLVM_ENABLE_THREADS],$LLVM_ENABLE_THREADS,
826 [Define if threads enabled])
828 dnl Allow disablement of pthread.h
829 AC_ARG_ENABLE(pthreads,
830 AS_HELP_STRING([--enable-pthreads],
831 [Use pthreads if available (default is YES)]),,
834 yes) AC_SUBST(ENABLE_PTHREADS,[1]) ;;
835 no) AC_SUBST(ENABLE_PTHREADS,[0]) ;;
836 default) AC_SUBST(ENABLE_PTHREADS,[1]) ;;
837 *) AC_MSG_ERROR([Invalid setting for --enable-pthreads. Use "yes" or "no"]) ;;
840 dnl Allow disablement of zlib
842 AS_HELP_STRING([--enable-zlib],
843 [Use zlib for compression/decompression if
844 available (default is YES)]),,
847 yes) AC_SUBST(LLVM_ENABLE_ZLIB,[1]) ;;
848 no) AC_SUBST(LLVM_ENABLE_ZLIB,[0]) ;;
849 default) AC_SUBST(LLVM_ENABLE_ZLIB,[1]) ;;
850 *) AC_MSG_ERROR([Invalid setting for --enable-zlib. Use "yes" or "no"]) ;;
852 AC_DEFINE_UNQUOTED([LLVM_ENABLE_ZLIB],$LLVM_ENABLE_ZLIB,
853 [Define if zlib is enabled])
855 dnl Allow building without position independent code
857 AS_HELP_STRING([--enable-pic],
858 [Build LLVM with Position Independent Code (default is YES)]),,
861 yes) AC_SUBST(ENABLE_PIC,[1]) ;;
862 no) AC_SUBST(ENABLE_PIC,[0]) ;;
863 default) AC_SUBST(ENABLE_PIC,[1]) ;;
864 *) AC_MSG_ERROR([Invalid setting for --enable-pic. Use "yes" or "no"]) ;;
866 AC_DEFINE_UNQUOTED([ENABLE_PIC],$ENABLE_PIC,
867 [Define if position independent code is enabled])
869 dnl Allow building a shared library and linking tools against it.
870 AC_ARG_ENABLE(shared,
871 AS_HELP_STRING([--enable-shared],
872 [Build a shared library and link tools against it (default is NO)]),,
875 yes) AC_SUBST(ENABLE_SHARED,[1]) ;;
876 no) AC_SUBST(ENABLE_SHARED,[0]) ;;
877 default) AC_SUBST(ENABLE_SHARED,[0]) ;;
878 *) AC_MSG_ERROR([Invalid setting for --enable-shared. Use "yes" or "no"]) ;;
881 dnl Allow libstdc++ is embedded in LLVM.dll.
882 AC_ARG_ENABLE(embed-stdcxx,
883 AS_HELP_STRING([--enable-embed-stdcxx],
884 [Build a shared library with embedded libstdc++ for Win32 DLL (default is NO)]),,
887 yes) AC_SUBST(ENABLE_EMBED_STDCXX,[1]) ;;
888 no) AC_SUBST(ENABLE_EMBED_STDCXX,[0]) ;;
889 default) AC_SUBST(ENABLE_EMBED_STDCXX,[0]) ;;
890 *) AC_MSG_ERROR([Invalid setting for --enable-embed-stdcxx. Use "yes" or "no"]) ;;
893 dnl Enable embedding timestamp information into build.
894 AC_ARG_ENABLE(timestamps,
895 AS_HELP_STRING([--enable-timestamps],
896 [Enable embedding timestamp information in build (default is YES)]),,
899 yes) AC_SUBST(ENABLE_TIMESTAMPS,[1]) ;;
900 no) AC_SUBST(ENABLE_TIMESTAMPS,[0]) ;;
901 default) AC_SUBST(ENABLE_TIMESTAMPS,[1]) ;;
902 *) AC_MSG_ERROR([Invalid setting for --enable-timestamps. Use "yes" or "no"]) ;;
904 AC_DEFINE_UNQUOTED([ENABLE_TIMESTAMPS],$ENABLE_TIMESTAMPS,
905 [Define if timestamp information (e.g., __DATE__) is allowed])
907 dnl Enable support for showing backtraces.
908 AC_ARG_ENABLE(backtraces, AS_HELP_STRING(
909 [--enable-backtraces],
910 [Enable embedding backtraces on crash (default is YES)]),
911 [case "$enableval" in
912 yes) llvm_cv_enable_backtraces="yes" ;;
913 no) llvm_cv_enable_backtraces="no" ;;
914 *) AC_MSG_ERROR([Invalid setting for --enable-backtraces. Use "yes" or "no"]) ;;
916 llvm_cv_enable_backtraces="yes")
917 if test "$llvm_cv_enable_backtraces" = "yes" ; then
918 AC_DEFINE([ENABLE_BACKTRACES],[1],
919 [Define if you want backtraces on crash])
922 dnl Enable installing platform specific signal handling overrides, for improved
923 dnl CrashRecovery support or interaction with crash reporting software. This
924 dnl support may be inappropriate for some clients embedding LLVM as a library.
925 AC_ARG_ENABLE(crash-overrides, AS_HELP_STRING(
926 [--enable-crash-overrides],
927 [Enable crash handling overrides (default is YES)]),
928 [case "$enableval" in
929 yes) llvm_cv_enable_crash_overrides="yes" ;;
930 no) llvm_cv_enable_crash_overrides="no" ;;
931 *) AC_MSG_ERROR([Invalid setting for --enable-crash-overrides. Use "yes" or "no"]) ;;
933 llvm_cv_enable_crash_overrides="yes")
934 if test "$llvm_cv_enable_crash_overrides" = "yes" ; then
935 AC_DEFINE([ENABLE_CRASH_OVERRIDES],[1],
936 [Define to enable crash handling overrides])
939 dnl List all possible targets
940 ALL_TARGETS="X86 Sparc PowerPC ARM AArch64 Mips XCore MSP430 CppBackend NVPTX Hexagon SystemZ R600"
941 AC_SUBST(ALL_TARGETS,$ALL_TARGETS)
943 dnl Allow specific targets to be specified for building (or not)
945 AC_ARG_ENABLE([targets],AS_HELP_STRING([--enable-targets],
946 [Build specific host targets: all or target1,target2,... Valid targets are:
947 host, x86, x86_64, sparc, powerpc, arm64, arm, aarch64, mips, hexagon,
948 xcore, msp430, nvptx, systemz, r600, and cpp (default=all)]),,
950 if test "$enableval" = host-only ; then
954 all) TARGETS_TO_BUILD="$ALL_TARGETS" ;;
955 *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
957 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
958 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
959 sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
960 powerpc) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
961 aarch64) TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
962 arm64) TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
963 arm) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
964 mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
965 mipsel) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
966 mips64) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
967 mips64el) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
968 xcore) TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
969 msp430) TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;;
970 cpp) TARGETS_TO_BUILD="CppBackend $TARGETS_TO_BUILD" ;;
971 hexagon) TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;;
972 nvptx) TARGETS_TO_BUILD="NVPTX $TARGETS_TO_BUILD" ;;
973 systemz) TARGETS_TO_BUILD="SystemZ $TARGETS_TO_BUILD" ;;
974 r600) TARGETS_TO_BUILD="R600 $TARGETS_TO_BUILD" ;;
975 host) case "$llvm_cv_target_arch" in
976 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
977 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
978 Sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
979 PowerPC) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
980 AArch64) TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
981 ARM) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
982 Mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
983 XCore) TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
984 MSP430) TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;;
985 Hexagon) TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;;
986 NVPTX) TARGETS_TO_BUILD="NVPTX $TARGETS_TO_BUILD" ;;
987 SystemZ) TARGETS_TO_BUILD="SystemZ $TARGETS_TO_BUILD" ;;
988 *) AC_MSG_ERROR([Can not set target to build]) ;;
990 *) AC_MSG_ERROR([Unrecognized target $a_target]) ;;
996 AC_ARG_ENABLE([experimental-targets],AS_HELP_STRING([--enable-experimental-targets],
997 [Build experimental host targets: disable or target1,target2,...
998 (default=disable)]),,
1001 if test ${enableval} != "disable"
1003 TARGETS_TO_BUILD="$enableval $TARGETS_TO_BUILD"
1006 AC_SUBST(TARGETS_TO_BUILD,$TARGETS_TO_BUILD)
1008 dnl Determine whether we are building LLVM support for the native architecture.
1009 dnl If so, define LLVM_NATIVE_ARCH to that LLVM target.
1010 for a_target in $TARGETS_TO_BUILD; do
1011 if test "$a_target" = "$LLVM_NATIVE_ARCH"; then
1012 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ARCH, $LLVM_NATIVE_ARCH,
1013 [LLVM architecture name for the native architecture, if available])
1014 LLVM_NATIVE_TARGET="LLVMInitialize${LLVM_NATIVE_ARCH}Target"
1015 LLVM_NATIVE_TARGETINFO="LLVMInitialize${LLVM_NATIVE_ARCH}TargetInfo"
1016 LLVM_NATIVE_TARGETMC="LLVMInitialize${LLVM_NATIVE_ARCH}TargetMC"
1017 LLVM_NATIVE_ASMPRINTER="LLVMInitialize${LLVM_NATIVE_ARCH}AsmPrinter"
1018 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/Makefile ; then
1019 LLVM_NATIVE_ASMPARSER="LLVMInitialize${LLVM_NATIVE_ARCH}AsmParser"
1021 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/Makefile ; then
1022 LLVM_NATIVE_DISASSEMBLER="LLVMInitialize${LLVM_NATIVE_ARCH}Disassembler"
1024 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGET, $LLVM_NATIVE_TARGET,
1025 [LLVM name for the native Target init function, if available])
1026 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGETINFO, $LLVM_NATIVE_TARGETINFO,
1027 [LLVM name for the native TargetInfo init function, if available])
1028 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGETMC, $LLVM_NATIVE_TARGETMC,
1029 [LLVM name for the native target MC init function, if available])
1030 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ASMPRINTER, $LLVM_NATIVE_ASMPRINTER,
1031 [LLVM name for the native AsmPrinter init function, if available])
1032 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/Makefile ; then
1033 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ASMPARSER, $LLVM_NATIVE_ASMPARSER,
1034 [LLVM name for the native AsmParser init function, if available])
1036 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/Makefile ; then
1037 AC_DEFINE_UNQUOTED(LLVM_NATIVE_DISASSEMBLER, $LLVM_NATIVE_DISASSEMBLER,
1038 [LLVM name for the native Disassembler init function, if available])
1043 dnl Build the LLVM_TARGET and LLVM_... macros for Targets.def and the individual
1044 dnl target feature def files.
1045 LLVM_ENUM_TARGETS=""
1046 LLVM_ENUM_ASM_PRINTERS=""
1047 LLVM_ENUM_ASM_PARSERS=""
1048 LLVM_ENUM_DISASSEMBLERS=""
1049 for target_to_build in $TARGETS_TO_BUILD; do
1050 LLVM_ENUM_TARGETS="LLVM_TARGET($target_to_build) $LLVM_ENUM_TARGETS"
1051 if test -f ${srcdir}/lib/Target/${target_to_build}/*AsmPrinter.cpp ; then
1052 LLVM_ENUM_ASM_PRINTERS="LLVM_ASM_PRINTER($target_to_build) $LLVM_ENUM_ASM_PRINTERS";
1054 if test -f ${srcdir}/lib/Target/${target_to_build}/AsmParser/Makefile ; then
1055 LLVM_ENUM_ASM_PARSERS="LLVM_ASM_PARSER($target_to_build) $LLVM_ENUM_ASM_PARSERS";
1057 if test -f ${srcdir}/lib/Target/${target_to_build}/Disassembler/Makefile ; then
1058 LLVM_ENUM_DISASSEMBLERS="LLVM_DISASSEMBLER($target_to_build) $LLVM_ENUM_DISASSEMBLERS";
1061 AC_SUBST(LLVM_ENUM_TARGETS)
1062 AC_SUBST(LLVM_ENUM_ASM_PRINTERS)
1063 AC_SUBST(LLVM_ENUM_ASM_PARSERS)
1064 AC_SUBST(LLVM_ENUM_DISASSEMBLERS)
1066 dnl Override the option to use for optimized builds.
1067 AC_ARG_WITH(optimize-option,
1068 AS_HELP_STRING([--with-optimize-option],
1069 [Select the compiler options to use for optimized builds]),,
1071 AC_MSG_CHECKING([optimization flags])
1074 case "$llvm_cv_os_type" in
1075 FreeBSD) optimize_option=-O2 ;;
1076 MingW) optimize_option=-O2 ;;
1077 *) optimize_option=-O3 ;;
1079 *) optimize_option="$withval" ;;
1081 AC_SUBST(OPTIMIZE_OPTION,$optimize_option)
1082 AC_MSG_RESULT([$optimize_option])
1084 dnl Specify extra build options
1085 AC_ARG_WITH(extra-options,
1086 AS_HELP_STRING([--with-extra-options],
1087 [Specify additional options to compile LLVM with]),,
1090 default) EXTRA_OPTIONS= ;;
1091 *) EXTRA_OPTIONS=$withval ;;
1093 AC_SUBST(EXTRA_OPTIONS,$EXTRA_OPTIONS)
1095 dnl Specify extra linker build options
1096 AC_ARG_WITH(extra-ld-options,
1097 AS_HELP_STRING([--with-extra-ld-options],
1098 [Specify additional options to link LLVM with]),,
1101 default) EXTRA_LD_OPTIONS= ;;
1102 *) EXTRA_LD_OPTIONS=$withval ;;
1104 AC_SUBST(EXTRA_LD_OPTIONS,$EXTRA_LD_OPTIONS)
1106 dnl Allow specific bindings to be specified for building (or not)
1107 AC_ARG_ENABLE([bindings],AS_HELP_STRING([--enable-bindings],
1108 [Build specific language bindings: all,auto,none,{binding-name} (default=auto)]),,
1110 BINDINGS_TO_BUILD=""
1111 case "$enableval" in
1112 yes | default | auto) BINDINGS_TO_BUILD="auto" ;;
1113 all ) BINDINGS_TO_BUILD="ocaml" ;;
1114 none | no) BINDINGS_TO_BUILD="" ;;
1115 *)for a_binding in `echo $enableval|sed -e 's/,/ /g' ` ; do
1116 case "$a_binding" in
1117 ocaml) BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD" ;;
1118 *) AC_MSG_ERROR([Unrecognized binding $a_binding]) ;;
1124 dnl Allow the ocaml libdir to be overridden. This could go in a configure
1125 dnl script for bindings/ocaml/configure, except that its auto value depends on
1126 dnl OCAMLC, which is found here to support tests.
1127 AC_ARG_WITH([ocaml-libdir],
1128 [AS_HELP_STRING([--with-ocaml-libdir],
1129 [Specify install location for ocaml bindings (default is stdlib)])],
1133 auto) with_ocaml_libdir="$withval" ;;
1134 /* | [[A-Za-z]]:[[\\/]]*) with_ocaml_libdir="$withval" ;;
1135 *) AC_MSG_ERROR([Invalid path for --with-ocaml-libdir. Provide full path]) ;;
1138 AC_ARG_WITH(clang-srcdir,
1139 AS_HELP_STRING([--with-clang-srcdir],
1140 [Directory to the out-of-tree Clang source]),,
1143 -) clang_src_root="" ;;
1144 /* | [[A-Za-z]]:[[\\/]]*) clang_src_root="$withval" ;;
1145 *) clang_src_root="$ac_pwd/$withval" ;;
1147 AC_SUBST(CLANG_SRC_ROOT,[$clang_src_root])
1149 AC_ARG_WITH(clang-resource-dir,
1150 AS_HELP_STRING([--with-clang-resource-dir],
1151 [Relative directory from the Clang binary for resource files]),,
1153 AC_DEFINE_UNQUOTED(CLANG_RESOURCE_DIR,"$withval",
1154 [Relative directory for resource files])
1156 AC_ARG_WITH(c-include-dirs,
1157 AS_HELP_STRING([--with-c-include-dirs],
1158 [Colon separated list of directories clang will search for headers]),,
1160 AC_DEFINE_UNQUOTED(C_INCLUDE_DIRS,"$withval",
1161 [Directories clang will search for headers])
1163 # Clang normally uses the system c++ headers and libraries. With this option,
1164 # clang will use the ones provided by a gcc installation instead. This option should
1165 # be passed the same value that was used with --prefix when configuring gcc.
1166 AC_ARG_WITH(gcc-toolchain,
1167 AS_HELP_STRING([--with-gcc-toolchain],
1168 [Directory where gcc is installed.]),,
1170 AC_DEFINE_UNQUOTED(GCC_INSTALL_PREFIX,"$withval",
1171 [Directory where gcc is installed.])
1173 AC_ARG_WITH(default-sysroot,
1174 AS_HELP_STRING([--with-default-sysroot],
1175 [Add --sysroot=<path> to all compiler invocations.]),,
1177 AC_DEFINE_UNQUOTED(DEFAULT_SYSROOT,"$withval",
1178 [Default <path> to all compiler invocations for --sysroot=<path>.])
1180 dnl Allow linking of LLVM with GPLv3 binutils code.
1181 AC_ARG_WITH(binutils-include,
1182 AS_HELP_STRING([--with-binutils-include],
1183 [Specify path to binutils/include/ containing plugin-api.h file for gold plugin.]),,
1186 default) WITH_BINUTILS_INCDIR=default ;;
1187 /* | [[A-Za-z]]:[[\\/]]*) WITH_BINUTILS_INCDIR=$withval ;;
1188 *) AC_MSG_ERROR([Invalid path for --with-binutils-include. Provide full path]) ;;
1190 if test "x$WITH_BINUTILS_INCDIR" != xdefault ; then
1191 AC_SUBST(BINUTILS_INCDIR,$WITH_BINUTILS_INCDIR)
1192 if test ! -f "$WITH_BINUTILS_INCDIR/plugin-api.h"; then
1193 echo "$WITH_BINUTILS_INCDIR/plugin-api.h"
1194 AC_MSG_ERROR([Invalid path to directory containing plugin-api.h.]);
1198 dnl Specify the URL where bug reports should be submitted.
1199 AC_ARG_WITH(bug-report-url,
1200 AS_HELP_STRING([--with-bug-report-url],
1201 [Specify the URL where bug reports should be submitted (default=http://llvm.org/bugs/)]),,
1202 withval="http://llvm.org/bugs/")
1203 AC_DEFINE_UNQUOTED(BUG_REPORT_URL,"$withval",
1206 dnl --enable-terminfo: check whether the user wants to control use of terminfo:
1207 AC_ARG_ENABLE(terminfo,AS_HELP_STRING(
1208 [--enable-terminfo],
1209 [Query the terminfo database if available (default is YES)]),
1210 [case "$enableval" in
1211 yes) llvm_cv_enable_terminfo="yes" ;;
1212 no) llvm_cv_enable_terminfo="no" ;;
1213 *) AC_MSG_ERROR([Invalid setting for --enable-terminfo. Use "yes" or "no"]) ;;
1215 llvm_cv_enable_terminfo="yes")
1216 case "$llvm_cv_enable_terminfo" in
1217 yes) AC_SUBST(ENABLE_TERMINFO,[1]) ;;
1218 no) AC_SUBST(ENABLE_TERMINFO,[0]) ;;
1221 dnl --enable-libedit: check whether the user wants to turn off libedit.
1222 AC_ARG_ENABLE(libedit,AS_HELP_STRING(
1224 [Use libedit if available (default is YES)]),
1225 [case "$enableval" in
1226 yes) llvm_cv_enable_libedit="yes" ;;
1227 no) llvm_cv_enable_libedit="no" ;;
1228 *) AC_MSG_ERROR([Invalid setting for --enable-libedit. Use "yes" or "no"]) ;;
1230 llvm_cv_enable_libedit="yes")
1232 dnl --enable-libffi : check whether the user wants to turn off libffi:
1233 AC_ARG_ENABLE(libffi,AS_HELP_STRING(
1234 --enable-libffi,[Check for the presence of libffi (default is NO)]),
1235 [case "$enableval" in
1236 yes) llvm_cv_enable_libffi="yes" ;;
1237 no) llvm_cv_enable_libffi="no" ;;
1238 *) AC_MSG_ERROR([Invalid setting for --enable-libffi. Use "yes" or "no"]) ;;
1240 llvm_cv_enable_libffi=no)
1242 AC_ARG_WITH(internal-prefix,
1243 AS_HELP_STRING([--with-internal-prefix],
1244 [Installation directory for internal files]),,
1246 AC_SUBST(INTERNAL_PREFIX,[$withval])
1248 dnl===-----------------------------------------------------------------------===
1250 dnl=== SECTION 4: Check for programs we need and that they are the right version
1252 dnl===-----------------------------------------------------------------------===
1254 dnl Check for the tools that the makefiles require
1257 AC_PATH_PROG(NM, [nm], [nm])
1258 AC_PATH_PROG(CMP, [cmp], [cmp])
1259 AC_PATH_PROG(CP, [cp], [cp])
1260 AC_PATH_PROG(DATE, [date], [date])
1261 AC_PATH_PROG(FIND, [find], [find])
1262 AC_PATH_PROG(GREP, [grep], [grep])
1263 AC_PATH_PROG(MKDIR,[mkdir],[mkdir])
1264 AC_PATH_PROG(MV, [mv], [mv])
1266 AC_CHECK_TOOL(AR, ar, false)
1267 AC_PATH_PROG(RM, [rm], [rm])
1268 AC_PATH_PROG(SED, [sed], [sed])
1269 AC_PATH_PROG(TAR, [tar], [gtar])
1270 AC_PATH_PROG(BINPWD,[pwd], [pwd])
1272 dnl Looking for misc. graph plotting software
1273 AC_PATH_PROG(DOT, [dot], [echo dot])
1274 if test "$DOT" != "echo dot" ; then
1275 AC_DEFINE([HAVE_DOT],[1],[Define if the dot program is available])
1276 dnl If we're targeting for mingw we should emit windows paths, not msys
1277 if test "$llvm_cv_os_type" = "MingW" ; then
1278 DOT=`echo $DOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1280 AC_DEFINE_UNQUOTED([LLVM_PATH_DOT],"$DOT${EXEEXT}",
1281 [Define to path to dot program if found or 'echo dot' otherwise])
1284 dnl Find the install program
1286 dnl Prepend src dir to install path dir if it's a relative path
1287 dnl This is a hack for installs that take place in something other
1288 dnl than the top level.
1290 [[\\/$]]* | ?:[[\\/]]* ) ;;
1291 *) INSTALL="\\\$(TOPSRCDIR)/$INSTALL" ;;
1294 dnl Checks for documentation and testing tools that we can do without. If these
1295 dnl are not found then they are set to "true" which always succeeds but does
1296 dnl nothing. This just lets the build output show that we could have done
1297 dnl something if the tool was available.
1298 AC_PATH_PROG(BZIP2, [bzip2])
1299 AC_PATH_PROG(CAT, [cat])
1300 AC_PATH_PROG(DOXYGEN, [doxygen])
1301 AC_PATH_PROG(GROFF, [groff])
1302 AC_PATH_PROG(GZIPBIN, [gzip])
1303 AC_PATH_PROG(PDFROFF, [pdfroff])
1304 AC_PATH_PROG(ZIP, [zip])
1305 AC_PATH_PROG(GO, [go])
1306 AC_PATH_PROGS(OCAMLFIND, [ocamlfind])
1307 AC_PATH_PROGS(GAS, [gas as])
1309 dnl Get the version of the linker in use.
1312 dnl Determine whether the linker supports the -R option.
1315 dnl Determine whether the compiler supports the -rdynamic option.
1316 AC_LINK_EXPORT_DYNAMIC
1318 dnl Determine whether the linker supports the --version-script option.
1319 AC_LINK_VERSION_SCRIPT
1321 AC_CHECK_HEADERS([errno.h])
1323 case "$llvm_cv_os_type" in
1324 Cygwin|MingW|Win32) llvm_shlib_ext=.dll ;;
1325 Darwin) llvm_shlib_ext=.dylib ;;
1326 *) llvm_shlib_ext=.so ;;
1329 AC_DEFINE_UNQUOTED([LTDL_SHLIB_EXT], ["$llvm_shlib_ext"], [The shared library extension])
1331 AC_MSG_CHECKING([tool compatibility])
1333 dnl Ensure that compilation tools are GCC or a GNU compatible compiler such as
1334 dnl ICC; we use GCC specific options in the makefiles so the compiler needs
1335 dnl to support those options.
1336 dnl "icc" emits gcc signatures
1337 dnl "icc -no-gcc" emits no gcc signature BUT is still compatible
1349 if test "$GCC" != "yes" && test "$ICC" != "yes"
1351 AC_MSG_ERROR([gcc|icc required but not found])
1354 dnl Ensure that compilation tools are compatible with GCC extensions
1355 if test "$GXX" != "yes" && test "$IXX" != "yes"
1357 AC_MSG_ERROR([g++|clang++|icc required but not found])
1360 dnl Verify that GCC is version 3.0 or higher
1361 if test "$GCC" = "yes"
1366 #if !defined(__GNUC__) || __GNUC__ < 3
1367 #error Unsupported GCC version
1371 [], [AC_MSG_ERROR([gcc 3.x required, but you have a lower version])])
1374 dnl Check for GNU Make. We use its extensions, so don't build without it
1375 if test -z "$llvm_cv_gnu_make_command"
1377 AC_MSG_ERROR([GNU Make required but not found])
1380 dnl Tool compatibility is okay if we make it here.
1383 dnl Check optional compiler flags.
1384 AC_MSG_CHECKING([optional compiler flags])
1385 CXX_FLAG_CHECK(NO_VARIADIC_MACROS, [-Wno-variadic-macros])
1386 CXX_FLAG_CHECK(NO_MISSING_FIELD_INITIALIZERS, [-Wno-missing-field-initializers])
1387 CXX_FLAG_CHECK(COVERED_SWITCH_DEFAULT, [-Wcovered-switch-default])
1389 dnl GCC's potential uninitialized use analysis is weak and presents lots of
1390 dnl false positives, so disable it.
1392 NO_MAYBE_UNINITIALIZED=
1393 if test "$GXX" = "yes"
1395 CXX_FLAG_CHECK(NO_MAYBE_UNINITIALIZED, [-Wno-maybe-uninitialized])
1396 dnl gcc 4.7 introduced -Wmaybe-uninitialized to distinguish cases which are
1397 dnl known to be uninitialized from cases which might be uninitialized. We
1398 dnl still want to catch the first kind of errors.
1399 if test -z "$NO_MAYBE_UNINITIALIZED"
1401 CXX_FLAG_CHECK(NO_UNINITIALIZED, [-Wno-uninitialized])
1405 dnl Check for misbehaving -Wcomment (gcc-4.7 has this) and maybe add
1406 dnl -Wno-comment to the flags.
1408 llvm_cv_old_cxxflags="$CXXFLAGS"
1409 CXXFLAGS="$CXXFLAGS -Wcomment -Werror"
1412 AC_LANG_SOURCE([[// Comment \o\
1414 int main() { return 0; }
1418 no_comment=-Wno-comment
1421 AC_SUBST(NO_COMMENT, [$no_comment])
1422 CXXFLAGS="$llvm_cv_old_cxxflags"
1424 AC_MSG_RESULT([$NO_VARIADIC_MACROS $NO_MISSING_FIELD_INITIALIZERS $COVERED_SWITCH_DEFAULT $NO_UNINITIALIZED $NO_MAYBE_UNINITIALIZED $NO_COMMENT])
1426 AC_ARG_WITH([python],
1427 [AS_HELP_STRING([--with-python], [path to python])],
1428 [PYTHON="$withval"])
1430 if test -n "$PYTHON" && test -x "$PYTHON" ; then
1431 AC_MSG_CHECKING([for python])
1432 AC_MSG_RESULT([user defined: $with_python])
1434 if test -n "$PYTHON" ; then
1435 AC_MSG_WARN([specified python ($PYTHON) is not usable, searching path])
1438 AC_PATH_PROG([PYTHON], [python python2 python27],
1439 [AC_MSG_RESULT([not found])
1440 AC_MSG_ERROR([could not find python 2.7 or higher])])
1443 AC_MSG_CHECKING([for python >= 2.7])
1444 ac_python_version=`$PYTHON -V 2>&1 | cut -d' ' -f2`
1445 ac_python_version_major=`echo $ac_python_version | cut -d'.' -f1`
1446 ac_python_version_minor=`echo $ac_python_version | cut -d'.' -f2`
1447 ac_python_version_patch=`echo $ac_python_version | cut -d'.' -f3`
1448 if test "$ac_python_version_major" -gt "2" || \
1449 (test "$ac_python_version_major" -eq "2" && \
1450 test "$ac_python_version_minor" -ge "7") ; then
1451 AC_MSG_RESULT([$PYTHON ($ac_python_version)])
1453 AC_MSG_RESULT([not found])
1454 AC_MSG_FAILURE([found python $ac_python_version ($PYTHON); required >= 2.7])
1457 dnl===-----------------------------------------------------------------------===
1459 dnl=== SECTION 5: Check for libraries
1461 dnl===-----------------------------------------------------------------------===
1464 if test "$llvm_cv_os_type" = "MingW" ; then
1465 AC_CHECK_LIB(imagehlp, main)
1466 AC_CHECK_LIB(psapi, main)
1467 AC_CHECK_LIB(shell32, main)
1470 dnl dlopen() is required for plugin support.
1471 AC_SEARCH_LIBS(dlopen,dl,LLVM_DEFINE_SUBST([HAVE_DLOPEN],[1],
1472 [Define if dlopen() is available on this platform.]),
1473 AC_MSG_WARN([dlopen() not found - disabling plugin support]))
1475 dnl Search for the clock_gettime() function. Note that we rely on the POSIX
1476 dnl macros to detect whether clock_gettime is available, this just finds the
1477 dnl right libraries to link with.
1478 AC_SEARCH_LIBS(clock_gettime,rt)
1480 dnl The curses library is optional; used for querying terminal info
1481 if test "$llvm_cv_enable_terminfo" = "yes" ; then
1482 dnl We need the has_color functionality in curses for it to be useful.
1483 AC_SEARCH_LIBS(setupterm,tinfo terminfo curses ncurses ncursesw,
1484 LLVM_DEFINE_SUBST([HAVE_TERMINFO],[1],
1485 [Define if the setupterm() function is supported this platform.]))
1488 dnl The libedit library is optional; used by lib/LineEditor
1489 if test "$llvm_cv_enable_libedit" = "yes" ; then
1490 AC_SEARCH_LIBS(el_init,edit,
1491 AC_DEFINE([HAVE_LIBEDIT],[1],
1492 [Define if libedit is available on this platform.]))
1495 dnl libffi is optional; used to call external functions from the interpreter
1496 if test "$llvm_cv_enable_libffi" = "yes" ; then
1497 AC_SEARCH_LIBS(ffi_call,ffi,AC_DEFINE([HAVE_FFI_CALL],[1],
1498 [Define if libffi is available on this platform.]),
1499 AC_MSG_ERROR([libffi not found - configure without --enable-libffi to compile without it]))
1502 dnl mallinfo is optional; the code can compile (minus features) without it
1503 AC_SEARCH_LIBS(mallinfo,malloc,AC_DEFINE([HAVE_MALLINFO],[1],
1504 [Define if mallinfo() is available on this platform.]))
1506 dnl pthread locking functions are optional - but llvm will not be thread-safe
1508 if test "$LLVM_ENABLE_THREADS" -eq 1 && test "$ENABLE_PTHREADS" -eq 1 ; then
1509 AC_CHECK_LIB(pthread, pthread_mutex_init)
1510 AC_SEARCH_LIBS(pthread_mutex_lock,pthread,
1511 AC_DEFINE([HAVE_PTHREAD_MUTEX_LOCK],[1],
1512 [Have pthread_mutex_lock]))
1513 AC_SEARCH_LIBS(pthread_rwlock_init,pthread,
1514 AC_DEFINE([HAVE_PTHREAD_RWLOCK_INIT],[1],
1515 [Have pthread_rwlock_init]))
1516 AC_SEARCH_LIBS(pthread_getspecific,pthread,
1517 AC_DEFINE([HAVE_PTHREAD_GETSPECIFIC],[1],
1518 [Have pthread_getspecific]))
1521 dnl zlib is optional; used for compression/uncompression
1522 if test "$LLVM_ENABLE_ZLIB" -eq 1 ; then
1523 AC_CHECK_LIB(z, compress2)
1526 dnl Allow OProfile support for JIT output.
1527 AC_ARG_WITH(oprofile,
1528 AS_HELP_STRING([--with-oprofile=<prefix>],
1529 [Tell OProfile >= 0.9.4 how to symbolize JIT output]),
1531 AC_SUBST(USE_OPROFILE, [1])
1533 /usr|yes) llvm_cv_oppath=/usr/lib/oprofile ;;
1535 AC_SUBST(USE_OPROFILE, [0]) ;;
1536 *) llvm_cv_oppath="${withval}/lib/oprofile"
1537 CPPFLAGS="-I${withval}/include";;
1539 case $llvm_cv_os_type in
1541 if test -n "$llvm_cv_oppath" ; then
1542 LIBS="$LIBS -lopagent -L${llvm_cv_oppath} -Wl,-rpath,${llvm_cv_oppath}"
1543 dnl Work around http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=537744:
1544 dnl libbfd is not included properly in libopagent in some Debian
1545 dnl versions. If libbfd isn't found at all, we assume opagent works
1547 AC_SEARCH_LIBS(bfd_init, bfd, [], [])
1548 AC_SEARCH_LIBS(op_open_agent, opagent, [], [
1549 echo "Error! You need to have libopagent around."
1552 AC_CHECK_HEADER([opagent.h], [], [
1553 echo "Error! You need to have opagent.h around."
1558 AC_MSG_ERROR([OProfile support is available on Linux only.]) ;;
1562 AC_SUBST(USE_OPROFILE, [0])
1564 AC_DEFINE_UNQUOTED([LLVM_USE_OPROFILE],$USE_OPROFILE,
1565 [Define if we have the oprofile JIT-support library])
1567 dnl Enable support for Intel JIT Events API.
1568 AC_ARG_WITH(intel-jitevents,
1569 AS_HELP_STRING([--with-intel-jitevents Notify Intel JIT profiling API of generated code]),
1572 yes) AC_SUBST(USE_INTEL_JITEVENTS,[1]);;
1573 no) AC_SUBST(USE_INTEL_JITEVENTS,[0]);;
1574 *) AC_MSG_ERROR([Invalid setting for --with-intel-jitevents. Use "yes" or "no"]);;
1577 case $llvm_cv_os_type in
1578 Linux|Win32|Cygwin|MingW) ;;
1579 *) AC_MSG_ERROR([Intel JIT API support is available on Linux and Windows only.]);;
1582 case "$llvm_cv_target_arch" in
1584 *) AC_MSG_ERROR([Target architecture $llvm_cv_target_arch does not support Intel JIT Events API.]);;
1588 AC_SUBST(USE_INTEL_JITEVENTS, [0])
1590 AC_DEFINE_UNQUOTED([LLVM_USE_INTEL_JITEVENTS],$USE_INTEL_JITEVENTS,
1591 [Define if we have the Intel JIT API runtime support library])
1593 dnl Check for libxml2
1594 dnl Right now we're just checking for the existence, we could also check for a
1595 dnl particular version via --version on xml2-config
1596 AC_CHECK_PROGS(XML2CONFIG, xml2-config)
1598 AC_MSG_CHECKING(for libxml2 includes)
1599 if test "x$XML2CONFIG" = "x"; then
1600 AC_MSG_RESULT(xml2-config not found)
1602 LIBXML2_INC=`$XML2CONFIG --cflags`
1603 AC_MSG_RESULT($LIBXML2_INC)
1604 AC_CHECK_LIB(xml2, xmlReadFile,[AC_DEFINE([CLANG_HAVE_LIBXML],1,[Define if we have libxml2])
1605 LIBXML2_LIBS="-lxml2"])
1607 AC_SUBST(LIBXML2_LIBS)
1608 AC_SUBST(LIBXML2_INC)
1610 dnl===-----------------------------------------------------------------------===
1612 dnl=== SECTION 6: Check for header files
1614 dnl===-----------------------------------------------------------------------===
1616 dnl First, use autoconf provided macros for specific headers that we need
1617 dnl We don't check for ancient stuff or things that are guaranteed to be there
1618 dnl by the C++ standard. We always use the <cfoo> versions of <foo.h> C headers.
1619 dnl Generally we're looking for POSIX headers.
1621 AC_HEADER_MMAP_ANONYMOUS
1627 dnl size_t must be defined before including cxxabi.h on FreeBSD 10.0.
1628 AC_CHECK_HEADERS([cxxabi.h], [], [],
1629 [#include <stddef.h>
1633 AC_CHECK_HEADERS([dlfcn.h execinfo.h fcntl.h inttypes.h link.h])
1634 AC_CHECK_HEADERS([malloc.h setjmp.h signal.h stdint.h termios.h unistd.h])
1635 AC_CHECK_HEADERS([utime.h])
1636 AC_CHECK_HEADERS([sys/mman.h sys/param.h sys/resource.h sys/time.h sys/uio.h])
1637 AC_CHECK_HEADERS([sys/ioctl.h malloc/malloc.h mach/mach.h])
1638 AC_CHECK_HEADERS([valgrind/valgrind.h])
1639 AC_CHECK_HEADERS([fenv.h])
1640 AC_CHECK_DECLS([FE_ALL_EXCEPT, FE_INEXACT], [], [], [[#include <fenv.h>]])
1641 if test "$LLVM_ENABLE_THREADS" -eq 1 && test "$ENABLE_PTHREADS" -eq 1 ; then
1642 AC_CHECK_HEADERS(pthread.h,
1643 AC_SUBST(HAVE_PTHREAD, 1),
1644 AC_SUBST(HAVE_PTHREAD, 0))
1646 AC_SUBST(HAVE_PTHREAD, 0)
1648 if test "$LLVM_ENABLE_ZLIB" -eq 1 ; then
1649 AC_CHECK_HEADERS(zlib.h,
1650 AC_SUBST(HAVE_LIBZ, 1),
1651 AC_SUBST(HAVE_LIBZ, 0))
1653 AC_SUBST(HAVE_LIBZ, 0)
1656 dnl Try to find ffi.h.
1657 if test "$llvm_cv_enable_libffi" = "yes" ; then
1658 AC_CHECK_HEADERS([ffi.h ffi/ffi.h])
1661 dnl Try to find Darwin specific crash reporting libraries.
1662 AC_CHECK_HEADERS([CrashReporterClient.h])
1664 dnl Try to find Darwin specific crash reporting global.
1665 AC_MSG_CHECKING([__crashreporter_info__])
1669 extern const char *__crashreporter_info__;
1671 __crashreporter_info__ = "test";
1677 AC_MSG_RESULT([yes])
1678 AC_DEFINE([HAVE_CRASHREPORTER_INFO], [1], [can use __crashreporter_info__])
1682 AC_DEFINE([HAVE_CRASHREPORTER_INFO], [0], [can use __crashreporter_info__])
1685 dnl===-----------------------------------------------------------------------===
1687 dnl=== SECTION 7: Check for types and structures
1689 dnl===-----------------------------------------------------------------------===
1694 AC_DEFINE_UNQUOTED([RETSIGTYPE],[void],[Define as the return type of signal handlers (`int' or `void').])
1696 AC_CHECK_TYPES([int64_t],,AC_MSG_ERROR([Type int64_t required but not found]))
1697 AC_CHECK_TYPES([uint64_t],,
1698 AC_CHECK_TYPES([u_int64_t],,
1699 AC_MSG_ERROR([Type uint64_t or u_int64_t required but not found])))
1701 dnl===-----------------------------------------------------------------------===
1703 dnl=== SECTION 8: Check for specific functions needed
1705 dnl===-----------------------------------------------------------------------===
1707 AC_CHECK_FUNCS([backtrace ceilf floorf roundf rintf nearbyintf getcwd ])
1708 AC_CHECK_FUNCS([powf fmodf strtof round ])
1709 AC_CHECK_FUNCS([log log2 log10 exp exp2])
1710 AC_CHECK_FUNCS([getpagesize getrusage getrlimit setrlimit gettimeofday ])
1711 AC_CHECK_FUNCS([isatty mkdtemp mkstemp ])
1712 AC_CHECK_FUNCS([mktemp posix_spawn pread realpath sbrk setrlimit ])
1713 AC_CHECK_FUNCS([strerror strerror_r setenv ])
1714 AC_CHECK_FUNCS([strtoll strtoq sysconf malloc_zone_statistics ])
1715 AC_CHECK_FUNCS([setjmp longjmp sigsetjmp siglongjmp writev])
1716 AC_CHECK_FUNCS([futimes futimens])
1720 dnl Check for arc4random accessible via AC_INCLUDES_DEFAULT.
1721 AC_CHECK_DECLS([arc4random])
1723 dnl Check the declaration "Secure API" on Windows environments.
1724 AC_CHECK_DECLS([strerror_s])
1726 dnl Check symbols in libgcc.a for JIT on Mingw.
1727 if test "$llvm_cv_os_type" = "MingW" ; then
1728 AC_CHECK_LIB(gcc,_alloca,AC_DEFINE([HAVE__ALLOCA],[1],[Have host's _alloca]))
1729 AC_CHECK_LIB(gcc,__alloca,AC_DEFINE([HAVE___ALLOCA],[1],[Have host's __alloca]))
1730 AC_CHECK_LIB(gcc,__chkstk,AC_DEFINE([HAVE___CHKSTK],[1],[Have host's __chkstk]))
1731 AC_CHECK_LIB(gcc,__chkstk_ms,AC_DEFINE([HAVE___CHKSTK_MS],[1],[Have host's __chkstk_ms]))
1732 AC_CHECK_LIB(gcc,___chkstk,AC_DEFINE([HAVE____CHKSTK],[1],[Have host's ___chkstk]))
1733 AC_CHECK_LIB(gcc,___chkstk_ms,AC_DEFINE([HAVE____CHKSTK_MS],[1],[Have host's ___chkstk_ms]))
1735 AC_CHECK_LIB(gcc,__ashldi3,AC_DEFINE([HAVE___ASHLDI3],[1],[Have host's __ashldi3]))
1736 AC_CHECK_LIB(gcc,__ashrdi3,AC_DEFINE([HAVE___ASHRDI3],[1],[Have host's __ashrdi3]))
1737 AC_CHECK_LIB(gcc,__divdi3,AC_DEFINE([HAVE___DIVDI3],[1],[Have host's __divdi3]))
1738 AC_CHECK_LIB(gcc,__fixdfdi,AC_DEFINE([HAVE___FIXDFDI],[1],[Have host's __fixdfdi]))
1739 AC_CHECK_LIB(gcc,__fixsfdi,AC_DEFINE([HAVE___FIXSFDI],[1],[Have host's __fixsfdi]))
1740 AC_CHECK_LIB(gcc,__floatdidf,AC_DEFINE([HAVE___FLOATDIDF],[1],[Have host's __floatdidf]))
1741 AC_CHECK_LIB(gcc,__lshrdi3,AC_DEFINE([HAVE___LSHRDI3],[1],[Have host's __lshrdi3]))
1742 AC_CHECK_LIB(gcc,__moddi3,AC_DEFINE([HAVE___MODDI3],[1],[Have host's __moddi3]))
1743 AC_CHECK_LIB(gcc,__udivdi3,AC_DEFINE([HAVE___UDIVDI3],[1],[Have host's __udivdi3]))
1744 AC_CHECK_LIB(gcc,__umoddi3,AC_DEFINE([HAVE___UMODDI3],[1],[Have host's __umoddi3]))
1746 AC_CHECK_LIB(gcc,__main,AC_DEFINE([HAVE___MAIN],[1],[Have host's __main]))
1747 AC_CHECK_LIB(gcc,__cmpdi2,AC_DEFINE([HAVE___CMPDI2],[1],[Have host's __cmpdi2]))
1750 dnl Check Win32 API EnumerateLoadedModules.
1751 if test "$llvm_cv_os_type" = "MingW" ; then
1752 AC_MSG_CHECKING([whether EnumerateLoadedModules() accepts new decl])
1756 #include <windows.h>
1757 #include <imagehlp.h>
1758 extern void foo(PENUMLOADED_MODULES_CALLBACK);
1759 extern void foo(BOOL(CALLBACK*)(PCSTR,ULONG_PTR,ULONG,PVOID));
1763 AC_MSG_RESULT([yes])
1764 llvm_cv_win32_elmcb_pcstr="PCSTR"
1768 llvm_cv_win32_elmcb_pcstr="PSTR"
1770 AC_DEFINE_UNQUOTED([WIN32_ELMCB_PCSTR],$llvm_cv_win32_elmcb_pcstr,[Type of 1st arg on ELM Callback])
1773 dnl Check for variations in the Standard C++ library and STL. These macros are
1774 dnl provided by LLVM in the autoconf/m4 directory.
1778 dnl Check for mmap support.We also need to know if /dev/zero is required to
1779 dnl be opened for allocating RWX memory.
1780 dnl Make sure we aren't attempting to configure for an unknown system
1781 if test "$llvm_cv_platform_type" = "Unix" ; then
1784 AC_NEED_DEV_ZERO_FOR_MMAP
1786 if test "$ac_cv_func_mmap_fixed_mapped" = "no"
1788 AC_MSG_WARN([mmap() of a fixed address required but not supported])
1790 if test "$ac_cv_func_mmap_file" = "no"
1792 AC_MSG_WARN([mmap() of files required but not found])
1796 dnl atomic builtins are required for threading support.
1797 AC_MSG_CHECKING(for GCC atomic builtins)
1798 dnl Since we'll be using these atomic builtins in C++ files we should test
1799 dnl the C++ compiler.
1805 volatile unsigned long val = 1;
1806 __sync_synchronize();
1807 __sync_val_compare_and_swap(&val, 1, 0);
1808 __sync_add_and_fetch(&val, 1);
1809 __sync_sub_and_fetch(&val, 1);
1815 AC_MSG_RESULT([yes])
1816 AC_DEFINE([LLVM_HAS_ATOMICS], [1], [Has gcc/MSVC atomic intrinsics])
1820 AC_DEFINE([LLVM_HAS_ATOMICS], [0], [Has gcc/MSVC atomic intrinsics])
1821 AC_MSG_WARN([LLVM will be built thread-unsafe because atomic builtins are missing])
1825 dnl===-----------------------------------------------------------------------===
1827 dnl=== SECTION 9: Additional checks, variables, etc.
1829 dnl===-----------------------------------------------------------------------===
1831 dnl Handle 32-bit linux systems running a 64-bit kernel.
1832 dnl This has to come after section 4 because it invokes the compiler.
1833 if test "$llvm_cv_os_type" = "Linux" -a "$llvm_cv_target_arch" = "x86_64" ; then
1835 if test "$llvm_cv_linux_mixed" = "yes"; then
1836 llvm_cv_target_arch="x86"
1841 dnl Check whether __dso_handle is present
1842 AC_CHECK_FUNCS([__dso_handle])
1844 dnl Propagate the shared library extension that the libltdl checks did to
1845 dnl the Makefiles so we can use it there too
1846 AC_SUBST(SHLIBEXT,$llvm_shlib_ext)
1848 dnl Translate the various configuration directories and other basic
1849 dnl information into substitutions that will end up in Makefile.config.in
1850 dnl that these configured values can be used by the makefiles
1851 if test "${prefix}" = "NONE" ; then
1854 eval LLVM_PREFIX="${prefix}";
1855 eval LLVM_BINDIR="${prefix}/bin";
1856 eval LLVM_DATADIR="${prefix}/share/llvm";
1857 eval LLVM_DOCSDIR="${prefix}/share/doc/llvm";
1858 eval LLVM_ETCDIR="${prefix}/etc/llvm";
1859 eval LLVM_INCLUDEDIR="${prefix}/include";
1860 eval LLVM_INFODIR="${prefix}/info";
1861 eval LLVM_MANDIR="${prefix}/man";
1862 LLVM_CONFIGTIME=`date`
1863 AC_SUBST(LLVM_PREFIX)
1864 AC_SUBST(LLVM_BINDIR)
1865 AC_SUBST(LLVM_DATADIR)
1866 AC_SUBST(LLVM_DOCSDIR)
1867 AC_SUBST(LLVM_ETCDIR)
1868 AC_SUBST(LLVM_INCLUDEDIR)
1869 AC_SUBST(LLVM_INFODIR)
1870 AC_SUBST(LLVM_MANDIR)
1871 AC_SUBST(LLVM_CONFIGTIME)
1873 dnl Disable embedding timestamps in the build directory, with ENABLE_TIMESTAMPS.
1874 if test "${ENABLE_TIMESTAMPS}" = "0"; then
1875 LLVM_CONFIGTIME="(timestamp not enabled)"
1878 dnl Place the various directories into the config.h file as #defines so that we
1879 dnl can know about the installation paths within LLVM.
1880 AC_DEFINE_UNQUOTED(LLVM_PREFIX,"$LLVM_PREFIX",
1881 [Installation prefix directory])
1882 AC_DEFINE_UNQUOTED(LLVM_BINDIR, "$LLVM_BINDIR",
1883 [Installation directory for binary executables])
1884 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DATADIR",
1885 [Installation directory for data files])
1886 AC_DEFINE_UNQUOTED(LLVM_DOCSDIR, "$LLVM_DOCSDIR",
1887 [Installation directory for documentation])
1888 AC_DEFINE_UNQUOTED(LLVM_ETCDIR, "$LLVM_ETCDIR",
1889 [Installation directory for config files])
1890 AC_DEFINE_UNQUOTED(LLVM_INCLUDEDIR, "$LLVM_INCLUDEDIR",
1891 [Installation directory for include files])
1892 AC_DEFINE_UNQUOTED(LLVM_INFODIR, "$LLVM_INFODIR",
1893 [Installation directory for .info files])
1894 AC_DEFINE_UNQUOTED(LLVM_MANDIR, "$LLVM_MANDIR",
1895 [Installation directory for man pages])
1896 AC_DEFINE_UNQUOTED(LLVM_CONFIGTIME, "$LLVM_CONFIGTIME",
1897 [Time at which LLVM was configured])
1898 AC_DEFINE_UNQUOTED(LLVM_HOST_TRIPLE, "$host",
1899 [Host triple LLVM will be executed on])
1900 AC_DEFINE_UNQUOTED(LLVM_DEFAULT_TARGET_TRIPLE, "$target",
1901 [Target triple LLVM will generate code for by default])
1903 dnl Determine which bindings to build.
1904 if test "$BINDINGS_TO_BUILD" = auto ; then
1905 BINDINGS_TO_BUILD=""
1906 if test "x$OCAMLFIND" != x ; then
1907 BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD"
1909 if test "x$GO" != x ; then
1910 if $GO run ${srcdir}/bindings/go/conftest.go ; then
1911 BINDINGS_TO_BUILD="go $BINDINGS_TO_BUILD"
1915 AC_SUBST(BINDINGS_TO_BUILD,$BINDINGS_TO_BUILD)
1917 dnl Do any work necessary to ensure that bindings have what they need.
1918 binding_prereqs_failed=0
1919 for a_binding in $BINDINGS_TO_BUILD ; do
1920 case "$a_binding" in
1922 if test "x$OCAMLFIND" = x ; then
1923 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlfind not found. Try configure OCAMLFIND=/path/to/ocamlfind])
1924 binding_prereqs_failed=1
1927 if $OCAMLFIND opt -version >/dev/null 2>/dev/null ; then
1932 AC_SUBST(HAVE_OCAMLOPT)
1934 if ! $OCAMLFIND query ctypes >/dev/null 2>/dev/null; then
1935 AC_MSG_WARN([--enable-bindings=ocaml specified, but ctypes is not installed])
1936 binding_prereqs_failed=1
1939 if $OCAMLFIND query oUnit >/dev/null 2>/dev/null; then
1943 AC_MSG_WARN([--enable-bindings=ocaml specified, but OUnit 2 is not installed. Tests will not run])
1944 dnl oUnit is optional!
1946 AC_SUBST(HAVE_OCAML_OUNIT)
1948 if test "x$with_ocaml_libdir" != xauto ; then
1949 AC_SUBST(OCAML_LIBDIR,$with_ocaml_libdir)
1951 ocaml_stdlib="`"$OCAMLFIND" ocamlc -where`"
1952 if test "$LLVM_PREFIX" '<' "$ocaml_stdlib" -a "$ocaml_stdlib" '<' "$LLVM_PREFIX~"
1954 # ocaml stdlib is beneath our prefix; use stdlib
1955 AC_SUBST(OCAML_LIBDIR,$ocaml_stdlib)
1957 # ocaml stdlib is outside our prefix; use libdir/ocaml
1958 AC_SUBST(OCAML_LIBDIR,${prefix}/lib/ocaml)
1963 if test "x$GO" = x ; then
1964 AC_MSG_WARN([--enable-bindings=go specified, but go not found. Try configure GO=/path/to/go])
1965 binding_prereqs_failed=1
1967 if $GO run ${srcdir}/bindings/go/conftest.go ; then
1970 AC_MSG_WARN([--enable-bindings=go specified, but need at least Go 1.2. Try configure GO=/path/to/go])
1971 binding_prereqs_failed=1
1977 if test "$binding_prereqs_failed" = 1 ; then
1978 AC_MSG_ERROR([Prequisites for bindings not satisfied. Fix them or use configure --disable-bindings.])
1981 dnl Determine whether the compiler supports -fvisibility-inlines-hidden.
1982 AC_CXX_USE_VISIBILITY_INLINES_HIDDEN
1984 dnl Determine linker rpath flag
1985 if test "$llvm_cv_link_use_r" = "yes" ; then
1992 dnl Determine linker rdynamic flag
1993 if test "$llvm_cv_link_use_export_dynamic" = "yes" ; then
1994 RDYNAMIC="-rdynamic"
2000 dnl===-----------------------------------------------------------------------===
2002 dnl=== SECTION 10: Specify the output files and generate it
2004 dnl===-----------------------------------------------------------------------===
2006 dnl Configure header files
2007 dnl WARNING: dnl If you add or remove any of the following config headers, then
2008 dnl you MUST also update Makefile so that the variable FilesToConfig
2009 dnl contains the same list of files as AC_CONFIG_HEADERS below. This ensures the
2010 dnl files can be updated automatically when their *.in sources change.
2011 AC_CONFIG_HEADERS([include/llvm/Config/config.h include/llvm/Config/llvm-config.h])
2012 AH_TOP([#ifndef CONFIG_H
2016 AC_CONFIG_FILES([include/llvm/Config/Targets.def])
2017 AC_CONFIG_FILES([include/llvm/Config/AsmPrinters.def])
2018 AC_CONFIG_FILES([include/llvm/Config/AsmParsers.def])
2019 AC_CONFIG_FILES([include/llvm/Config/Disassemblers.def])
2020 AC_CONFIG_HEADERS([include/llvm/Support/DataTypes.h])
2022 dnl Configure the makefile's configuration data
2023 AC_CONFIG_FILES([Makefile.config])
2025 dnl Configure the RPM spec file for LLVM
2026 AC_CONFIG_FILES([llvm.spec])
2028 dnl Configure doxygen's configuration file
2029 AC_CONFIG_FILES([docs/doxygen.cfg])
2031 dnl Configure clang, if present
2032 if test "${clang_src_root}" = ""; then
2033 clang_src_root="$srcdir/tools/clang"
2035 if test -f ${clang_src_root}/README.txt; then
2036 dnl Clang supports build systems which use the multilib libdir suffix.
2037 dnl The autoconf system doesn't support this so stub out that variable.
2038 AC_DEFINE_UNQUOTED(CLANG_LIBDIR_SUFFIX,"",
2039 [Multilib suffix for libdir.])
2041 dnl Use variables to stay under 80 columns.
2042 configh="include/clang/Config/config.h"
2043 doxy="docs/doxygen.cfg"
2044 AC_CONFIG_HEADERS([tools/clang/${configh}:${clang_src_root}/${configh}.in])
2045 AC_CONFIG_FILES([tools/clang/${doxy}:${clang_src_root}/${doxy}.in])
2048 dnl OCaml findlib META file
2049 AC_CONFIG_FILES([bindings/ocaml/llvm/META.llvm])
2051 dnl Add --program-prefix value to Makefile.rules. Already an ARG variable.
2052 test "x$program_prefix" = "xNONE" && program_prefix=""
2053 AC_SUBST([program_prefix])
2056 dnl Do special configuration of Makefiles
2057 AC_CONFIG_COMMANDS([setup],,[llvm_src="${srcdir}"])
2058 AC_CONFIG_MAKEFILE(Makefile)
2059 AC_CONFIG_MAKEFILE(Makefile.common)
2060 AC_CONFIG_MAKEFILE(examples/Makefile)
2061 AC_CONFIG_MAKEFILE(lib/Makefile)
2062 AC_CONFIG_MAKEFILE(test/Makefile)
2063 AC_CONFIG_MAKEFILE(test/Makefile.tests)
2064 AC_CONFIG_MAKEFILE(unittests/Makefile)
2065 AC_CONFIG_MAKEFILE(tools/Makefile)
2066 AC_CONFIG_MAKEFILE(utils/Makefile)
2067 AC_CONFIG_MAKEFILE(projects/Makefile)
2068 AC_CONFIG_MAKEFILE(bindings/Makefile)
2069 AC_CONFIG_MAKEFILE(bindings/ocaml/Makefile.ocaml)
2071 dnl Finally, crank out the output