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.
34 AC_INIT([LLVM],[3.5svn],[http://llvm.org/bugs/])
35 AC_DEFINE([LLVM_VERSION_MAJOR], [3], [Major version of the LLVM API])
36 AC_DEFINE([LLVM_VERSION_MINOR], [5], [Minor version of the LLVM API])
38 dnl Provide a copyright substitution and ensure the copyright notice is included
39 dnl in the output of --version option of the generated configure script.
40 AC_SUBST(LLVM_COPYRIGHT,["Copyright (c) 2003-2014 University of Illinois at Urbana-Champaign."])
41 AC_COPYRIGHT([Copyright (c) 2003-2014 University of Illinois at Urbana-Champaign.])
43 dnl Indicate that we require autoconf 2.60 or later.
46 dnl Verify that the source directory is valid. This makes sure that we are
47 dnl configuring LLVM and not some other package (it validates --srcdir argument)
48 AC_CONFIG_SRCDIR([lib/IR/Module.cpp])
50 dnl Place all of the extra autoconf files into the config subdirectory. Tell
51 dnl various tools where the m4 autoconf macros are.
52 AC_CONFIG_AUX_DIR([autoconf])
54 dnl Quit if the source directory has already been configured.
55 dnl NOTE: This relies upon undocumented autoconf behavior.
56 if test ${srcdir} != "." ; then
57 if test -f ${srcdir}/include/llvm/Config/config.h ; then
58 AC_MSG_ERROR([Already configured in ${srcdir}])
62 dnl Default to empty (i.e. assigning the null string to) CFLAGS and CXXFLAGS,
63 dnl instead of the autoconf default (for example, '-g -O2' for CC=gcc).
67 dnl We need to check for the compiler up here to avoid anything else
68 dnl starting with a different one.
70 AC_PROG_CXX(clang++ g++)
73 dnl If CXX is Clang, check that it can find and parse C++ standard library
75 if test "$CXX" = "clang++" ; then
76 AC_MSG_CHECKING([whether clang works])
78 dnl Note that space between 'include' and '(' is required. There's a broken
79 dnl regex in aclocal that otherwise will think that we call m4's include
81 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <limits>
82 #if __has_include (<cxxabi.h>)
85 #if __has_include (<unwind.h>)
94 AC_MSG_ERROR([Selected compiler could not find or parse C++ standard library headers. Rerun with CC=c-compiler CXX=c++-compiler ./configure ...])
99 dnl Set up variables that track whether the host compiler is GCC or Clang where
100 dnl we can effectively sanity check them. We don't try to sanity check all the
101 dnl other possible compilers.
102 AC_MSG_CHECKING([whether GCC or Clang is our host compiler])
104 llvm_cv_cxx_compiler=unknown
105 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[#if ! __clang__
109 llvm_cv_cxx_compiler=clang,
110 [AC_COMPILE_IFELSE([AC_LANG_SOURCE([[#if ! __GNUC__
114 llvm_cv_cxx_compiler=gcc, [])])
116 AC_MSG_RESULT([${llvm_cv_cxx_compiler}])
118 dnl Configure all of the projects present in our source tree. While we could
119 dnl just AC_CONFIG_SUBDIRS on the set of directories in projects that have a
120 dnl configure script, that usage of the AC_CONFIG_SUBDIRS macro is deprecated.
121 dnl Instead we match on the known projects.
124 dnl One tricky part of doing this is that some projects depend upon other
125 dnl projects. For example, several projects rely upon the LLVM test suite.
126 dnl We want to configure those projects first so that their object trees are
127 dnl created before running the configure scripts of projects that depend upon
131 dnl Several projects use the LLVM test suite, so configure it next.
132 if test -d ${srcdir}/projects/test-suite ; then
133 AC_CONFIG_SUBDIRS([projects/test-suite])
136 dnl llvm-test is the old name of the test-suite, kept here for backwards
138 if test -d ${srcdir}/projects/llvm-test ; then
139 AC_CONFIG_SUBDIRS([projects/llvm-test])
142 dnl Some projects use poolalloc; configure that next
143 if test -d ${srcdir}/projects/poolalloc ; then
144 AC_CONFIG_SUBDIRS([projects/poolalloc])
147 if test -d ${srcdir}/projects/llvm-poolalloc ; then
148 AC_CONFIG_SUBDIRS([projects/llvm-poolalloc])
151 dnl Check for all other projects
152 for i in `ls ${srcdir}/projects`
154 if test -d ${srcdir}/projects/${i} ; then
156 sample) AC_CONFIG_SUBDIRS([projects/sample]) ;;
157 safecode) AC_CONFIG_SUBDIRS([projects/safecode]) ;;
164 AC_MSG_WARN([Unknown project (${i}) won't be configured automatically])
170 dnl Disable the build of polly, even if it is checked out into tools/polly.
172 AS_HELP_STRING([--enable-polly],
173 [Use polly if available (default is YES)]),,
176 yes) AC_SUBST(ENABLE_POLLY,[1]) ;;
177 no) AC_SUBST(ENABLE_POLLY,[0]) ;;
178 default) AC_SUBST(ENABLE_POLLY,[1]) ;;
179 *) AC_MSG_ERROR([Invalid setting for --enable-polly. Use "yes" or "no"]) ;;
183 dnl Check if polly is checked out into tools/polly and configure it if
185 if (test -d ${srcdir}/tools/polly) && (test $ENABLE_POLLY -eq 1) ; then
186 AC_SUBST(LLVM_HAS_POLLY,1)
187 AC_CONFIG_SUBDIRS([tools/polly])
190 dnl===-----------------------------------------------------------------------===
192 dnl=== SECTION 2: Architecture, target, and host checks
194 dnl===-----------------------------------------------------------------------===
196 dnl Check the target for which we're compiling and the host that will do the
197 dnl compilations. This will tell us which LLVM compiler will be used for
198 dnl compiling SSA into object code. This needs to be done early because
199 dnl following tests depend on it.
202 dnl Determine the platform type and cache its value. This helps us configure
203 dnl the System library to the correct build platform.
204 AC_CACHE_CHECK([type of operating system we're going to host on],
208 llvm_cv_link_all_option="-Wl,--whole-archive"
209 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
210 llvm_cv_os_type="AIX"
211 llvm_cv_platform_type="Unix" ;;
213 llvm_cv_link_all_option="-Wl,--whole-archive"
214 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
215 llvm_cv_os_type="IRIX"
216 llvm_cv_platform_type="Unix" ;;
218 llvm_cv_link_all_option="-Wl,--whole-archive"
219 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
220 llvm_cv_os_type="Cygwin"
221 llvm_cv_platform_type="Unix" ;;
223 llvm_cv_link_all_option="-Wl,-all_load"
224 llvm_cv_no_link_all_option="-Wl,-noall_load"
225 llvm_cv_os_type="Darwin"
226 llvm_cv_platform_type="Unix" ;;
228 llvm_cv_link_all_option="-Wl,-all_load"
229 llvm_cv_no_link_all_option="-Wl,-noall_load"
230 llvm_cv_os_type="Minix"
231 llvm_cv_platform_type="Unix" ;;
233 llvm_cv_link_all_option="-Wl,--whole-archive"
234 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
235 llvm_cv_os_type="FreeBSD"
236 llvm_cv_platform_type="Unix" ;;
238 llvm_cv_link_all_option="-Wl,--whole-archive"
239 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
240 llvm_cv_os_type="GNU/kFreeBSD"
241 llvm_cv_platform_type="Unix" ;;
243 llvm_cv_link_all_option="-Wl,--whole-archive"
244 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
245 llvm_cv_os_type="OpenBSD"
246 llvm_cv_platform_type="Unix" ;;
248 llvm_cv_link_all_option="-Wl,--whole-archive"
249 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
250 llvm_cv_os_type="NetBSD"
251 llvm_cv_platform_type="Unix" ;;
253 llvm_cv_link_all_option="-Wl,--whole-archive"
254 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
255 llvm_cv_os_type="DragonFly"
256 llvm_cv_platform_type="Unix" ;;
258 llvm_cv_link_all_option="-Wl,--whole-archive"
259 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
260 llvm_cv_os_type="HP-UX"
261 llvm_cv_platform_type="Unix" ;;
263 llvm_cv_link_all_option="-Wl,--whole-archive"
264 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
265 llvm_cv_os_type="Interix"
266 llvm_cv_platform_type="Unix" ;;
268 llvm_cv_link_all_option="-Wl,--whole-archive"
269 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
270 llvm_cv_os_type="Linux"
271 llvm_cv_platform_type="Unix" ;;
273 llvm_cv_link_all_option="-Wl,--whole-archive"
274 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
275 llvm_cv_os_type="GNU"
276 llvm_cv_platform_type="Unix" ;;
278 llvm_cv_link_all_option="-Wl,-z,allextract"
279 llvm_cv_no_link_all_option="-Wl,-z,defaultextract"
280 llvm_cv_os_type="SunOS"
281 llvm_cv_platform_type="Unix" ;;
283 llvm_cv_link_all_option="-Wl,-z,allextract"
284 llvm_cv_link_all_option="-Wl,-z,defaultextract"
285 llvm_cv_os_type="AuroraUX"
286 llvm_cv_platform_type="Unix" ;;
288 llvm_cv_link_all_option="-Wl,--whole-archive"
289 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
290 llvm_cv_os_type="Win32"
291 llvm_cv_platform_type="Win32" ;;
293 llvm_cv_link_all_option="-Wl,--whole-archive"
294 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
295 llvm_cv_os_type="MingW"
296 llvm_cv_platform_type="Win32" ;;
298 llvm_cv_link_all_option="-Wl,--whole-archive"
299 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
300 llvm_cv_os_type="Haiku"
301 llvm_cv_platform_type="Unix" ;;
303 llvm_cv_link_all_option="-Wl,--whole-archive"
304 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
305 llvm_cv_os_type="Freestanding"
306 llvm_cv_platform_type="Unix" ;;
308 llvm_cv_link_all_option="-Wl,--whole-archive"
309 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
310 llvm_cv_os_type="Freestanding"
311 llvm_cv_platform_type="Unix" ;;
313 llvm_cv_link_all_option=""
314 llvm_cv_no_link_all_option=""
315 llvm_cv_os_type="Unknown"
316 llvm_cv_platform_type="Unknown" ;;
319 AC_CACHE_CHECK([type of operating system we're going to target],
320 [llvm_cv_target_os_type],
323 llvm_cv_target_os_type="AIX" ;;
325 llvm_cv_target_os_type="IRIX" ;;
327 llvm_cv_target_os_type="Cygwin" ;;
329 llvm_cv_target_os_type="Darwin" ;;
331 llvm_cv_target_os_type="Minix" ;;
333 llvm_cv_target_os_type="FreeBSD" ;;
335 llvm_cv_target_os_type="GNU/kFreeBSD" ;;
337 llvm_cv_target_os_type="OpenBSD" ;;
339 llvm_cv_target_os_type="NetBSD" ;;
341 llvm_cv_target_os_type="DragonFly" ;;
343 llvm_cv_target_os_type="HP-UX" ;;
345 llvm_cv_target_os_type="Interix" ;;
347 llvm_cv_target_os_type="Linux" ;;
349 llvm_cv_target_os_type="GNU" ;;
351 llvm_cv_target_os_type="SunOS" ;;
353 llvm_cv_target_os_type="AuroraUX" ;;
355 llvm_cv_target_os_type="Win32" ;;
357 llvm_cv_target_os_type="MingW" ;;
359 llvm_cv_target_os_type="Haiku" ;;
361 llvm_cv_target_os_type="RTEMS" ;;
363 llvm_cv_target_os_type="NativeClient" ;;
365 llvm_cv_target_os_type="Freestanding" ;;
367 llvm_cv_target_os_type="Unknown" ;;
370 dnl Make sure we aren't attempting to configure for an unknown system
371 if test "$llvm_cv_os_type" = "Unknown" ; then
372 AC_MSG_ERROR([Operating system is unknown, configure can't continue])
375 dnl Set the "OS" Makefile variable based on the platform type so the
376 dnl makefile can configure itself to specific build hosts
377 AC_SUBST(OS,$llvm_cv_os_type)
378 AC_SUBST(HOST_OS,$llvm_cv_os_type)
379 AC_SUBST(TARGET_OS,$llvm_cv_target_os_type)
381 dnl Set the LINKALL and NOLINKALL Makefile variables based on the platform
382 AC_SUBST(LINKALL,$llvm_cv_link_all_option)
383 AC_SUBST(NOLINKALL,$llvm_cv_no_link_all_option)
385 dnl Set the "LLVM_ON_*" variables based on llvm_cv_platform_type
386 dnl This is used by lib/Support to determine the basic kind of implementation
388 case $llvm_cv_platform_type in
390 AC_DEFINE([LLVM_ON_UNIX],[1],[Define if this is Unixish platform])
391 AC_SUBST(LLVM_ON_UNIX,[1])
392 AC_SUBST(LLVM_ON_WIN32,[0])
395 AC_DEFINE([LLVM_ON_WIN32],[1],[Define if this is Win32ish platform])
396 AC_SUBST(LLVM_ON_UNIX,[0])
397 AC_SUBST(LLVM_ON_WIN32,[1])
401 dnl Determine what our target architecture is and configure accordingly.
402 dnl This will allow Makefiles to make a distinction between the hardware and
404 AC_CACHE_CHECK([target architecture],[llvm_cv_target_arch],
406 i?86-*) llvm_cv_target_arch="x86" ;;
407 amd64-* | x86_64-*) llvm_cv_target_arch="x86_64" ;;
408 sparc*-*) llvm_cv_target_arch="Sparc" ;;
409 powerpc*-*) llvm_cv_target_arch="PowerPC" ;;
410 arm*-*) llvm_cv_target_arch="ARM" ;;
411 aarch64*-*) llvm_cv_target_arch="AArch64" ;;
412 mips-* | mips64-*) llvm_cv_target_arch="Mips" ;;
413 mipsel-* | mips64el-*) llvm_cv_target_arch="Mips" ;;
414 xcore-*) llvm_cv_target_arch="XCore" ;;
415 msp430-*) llvm_cv_target_arch="MSP430" ;;
416 hexagon-*) llvm_cv_target_arch="Hexagon" ;;
417 nvptx-*) llvm_cv_target_arch="NVPTX" ;;
418 s390x-*) llvm_cv_target_arch="SystemZ" ;;
419 *) llvm_cv_target_arch="Unknown" ;;
422 if test "$llvm_cv_target_arch" = "Unknown" ; then
423 AC_MSG_WARN([Configuring LLVM for an unknown target archicture])
426 dnl Determine the LLVM native architecture for the target
427 case "$llvm_cv_target_arch" in
428 x86) LLVM_NATIVE_ARCH="X86" ;;
429 x86_64) LLVM_NATIVE_ARCH="X86" ;;
430 *) LLVM_NATIVE_ARCH="$llvm_cv_target_arch" ;;
433 dnl Define a substitution, ARCH, for the target architecture
434 AC_SUBST(ARCH,$llvm_cv_target_arch)
436 dnl Determine what our host architecture.
437 dnl This will allow MCJIT regress tests runs only for supported
440 i?86-*) host_arch="x86" ;;
441 amd64-* | x86_64-*) host_arch="x86_64" ;;
442 sparc*-*) host_arch="Sparc" ;;
443 powerpc*-*) host_arch="PowerPC" ;;
444 arm*-*) host_arch="ARM" ;;
445 aarch64*-*) host_arch="AArch64" ;;
446 mips-* | mips64-*) host_arch="Mips" ;;
447 mipsel-* | mips64el-*) host_arch="Mips" ;;
448 xcore-*) host_arch="XCore" ;;
449 msp430-*) host_arch="MSP430" ;;
450 hexagon-*) host_arch="Hexagon" ;;
451 s390x-*) host_arch="SystemZ" ;;
452 *) host_arch="Unknown" ;;
455 if test "$host_arch" = "Unknown" ; then
456 AC_MSG_WARN([Configuring LLVM for an unknown host archicture])
459 AC_SUBST(HOST_ARCH,$host_arch)
461 dnl Check for build platform executable suffix if we're cross-compiling
462 if test "$cross_compiling" = yes; then
463 AC_SUBST(LLVM_CROSS_COMPILING, [1])
465 ac_build_prefix=${build_alias}-
466 AC_CHECK_PROG(BUILD_CXX, ${ac_build_prefix}g++, ${ac_build_prefix}g++)
467 if test -z "$BUILD_CXX"; then
468 AC_CHECK_PROG(BUILD_CXX, g++, g++)
469 if test -z "$BUILD_CXX"; then
470 AC_CHECK_PROG(BUILD_CXX, c++, c++, , , /usr/ucb/c++)
474 AC_SUBST(LLVM_CROSS_COMPILING, [0])
477 dnl Check to see if there's a .svn or .git directory indicating that this
478 dnl build is being done from a checkout. This sets up several defaults for
479 dnl the command line switches. When we build with a checkout directory,
480 dnl we get a debug with assertions turned on. Without, we assume a source
481 dnl release and we get an optimized build without assertions.
482 dnl See --enable-optimized and --enable-assertions below
483 if test -d ".svn" -o -d "${srcdir}/.svn" -o -d ".git" -o -d "${srcdir}/.git"; then
486 AC_SUBST(CVSBUILD,[[CVSBUILD=1]])
492 dnl===-----------------------------------------------------------------------===
494 dnl=== SECTION 3: Command line arguments for the configure script.
496 dnl===-----------------------------------------------------------------------===
498 dnl --enable-libcpp : check whether or not to use libc++ on the command line
499 AC_ARG_ENABLE(libcpp,
500 AS_HELP_STRING([--enable-libcpp],
501 [Use libc++ if available (default is NO)]),,
504 yes) AC_SUBST(ENABLE_LIBCPP,[1]) ;;
505 no) AC_SUBST(ENABLE_LIBCPP,[0]) ;;
506 default) AC_SUBST(ENABLE_LIBCPP,[0]);;
507 *) AC_MSG_ERROR([Invalid setting for --enable-libcpp. Use "yes" or "no"]) ;;
510 dnl Check both GCC and Clang for sufficiently modern versions. These checks can
511 dnl be bypassed by passing a flag if necessary on a platform. We have to do
512 dnl these checks here so that we have the configuration of the standard C++
513 dnl library finished.
514 AC_ARG_ENABLE(compiler-version-checks,
515 AS_HELP_STRING([--enable-compiler-version-checks],
516 [Check the version of the host compiler (default is YES)]),,
523 case "$llvm_cv_cxx_compiler" in
525 AC_MSG_CHECKING([whether Clang is new enough])
526 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
527 #if __clang_major__ < 3 || (__clang_major__ == 3 && __clang_minor__ < 1)
528 #error This version of Clang is too old to build LLVM
531 [AC_MSG_RESULT([yes])],
534 The selected Clang compiler is not new enough to build LLVM. Please upgrade to
535 Clang 3.1. You may pass --disable-compiler-version-checks to configure to
536 bypass these sanity checks.])])
538 dnl Note that libstdc++4.6 is known broken for C++11 builds. The errors
539 dnl are sometimes deeply confusing though. Here we test for an obvious
540 dnl incomplete feature in 4.6's standard library that was completed in
541 dnl 4.7's. We also have to disable this test if 'ENABLE_LIBCPP' is set
542 dnl because the enable flags don't actually fix CXXFLAGS, they rely on
543 dnl that happening in the Makefile.
544 if test "$ENABLE_LIBCPP" -eq 0 ; then
545 AC_MSG_CHECKING([whether Clang will select a modern C++ standard library])
546 llvm_cv_old_cxxflags="$CXXFLAGS"
547 CXXFLAGS="$CXXFLAGS -std=c++0x"
548 AC_LINK_IFELSE([AC_LANG_SOURCE([[
550 std::atomic<float> x(0.0f);
551 int main() { return (float)x; }
553 [AC_MSG_RESULT([yes])],
556 We detected a missing feature in the standard C++ library that was known to be
557 missing in libstdc++4.6 and implemented in libstdc++4.7. There are numerous
558 C++11 problems with 4.6's library, and we don't support GCCs or libstdc++ older
559 than 4.7. You will need to update your system and ensure Clang uses the newer
562 If this error is incorrect or you need to force things to work, you may pass
563 '--disable-compiler-version-checks' to configure to bypass this test.])])
564 CXXFLAGS="$llvm_cv_old_cxxflags"
568 AC_MSG_CHECKING([whether GCC is new enough])
569 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
570 #if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 7)
571 #error This version of GCC is too old to build LLVM
574 [AC_MSG_RESULT([yes])],
577 The selected GCC C++ compiler is not new enough to build LLVM. Please upgrade
578 to GCC 4.7. You may pass --disable-compiler-version-checks to configure to
579 bypass these sanity checks.])])
587 AC_MSG_ERROR([Invalid setting for --enable-compiler-version-checks. Use "yes" or "no"])
591 dnl --enable-cxx11 : check whether or not to use -std=c++11 on the command line
593 AS_HELP_STRING([--enable-cxx11],
594 [Use c++11 if available (default is NO)]),,
597 yes) AC_SUBST(ENABLE_CXX11,[1]) ;;
598 no) AC_SUBST(ENABLE_CXX11,[0]) ;;
599 default) AC_SUBST(ENABLE_CXX11,[0]);;
600 *) AC_MSG_ERROR([Invalid setting for --enable-cxx11. Use "yes" or "no"]) ;;
603 dnl --enable-fission : check whether or not to use -gsplit-dwarf on the command
605 AC_ARG_ENABLE(split-dwarf,
606 AS_HELP_STRING([--enable-split-dwarf],
607 [Use split-dwarf if available (default is NO)]),,
610 yes) AC_SUBST(ENABLE_SPLIT_DWARF,[1]) ;;
611 no) AC_SUBST(ENABLE_SPLIT_DWARF,[0]) ;;
612 default) AC_SUBST(ENABLE_SPLIT_DWARF,[0]);;
613 *) AC_MSG_ERROR([Invalid setting for --enable-split-dwarf. Use "yes" or "no"]) ;;
616 dnl --enable-clang-arcmt: check whether to enable clang arcmt
618 AC_ARG_ENABLE(clang-arcmt,
619 AS_HELP_STRING([--enable-clang-arcmt],
620 [Enable building of clang ARCMT (default is YES)]),
621 clang_arcmt="$enableval",
624 yes) AC_SUBST(ENABLE_CLANG_ARCMT,[1]) ;;
625 no) AC_SUBST(ENABLE_CLANG_ARCMT,[0]) ;;
626 default) AC_SUBST(ENABLE_CLANG_ARCMT,[1]);;
627 *) AC_MSG_ERROR([Invalid setting for --enable-clang-arcmt. Use "yes" or "no"]) ;;
630 dnl --enable-clang-static-analyzer: check whether to enable static-analyzer
631 clang_static_analyzer="yes"
632 AC_ARG_ENABLE(clang-static-analyzer,
633 AS_HELP_STRING([--enable-clang-static-analyzer],
634 [Enable building of clang Static Analyzer (default is YES)]),
635 clang_static_analyzer="$enableval",
638 yes) AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[1]) ;;
640 if test ${clang_arcmt} != "no" ; then
641 AC_MSG_ERROR([Cannot enable clang ARC Migration Tool while disabling static analyzer.])
643 AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[0])
645 default) AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[1]);;
646 *) AC_MSG_ERROR([Invalid setting for --enable-clang-static-analyzer. Use "yes" or "no"]) ;;
649 dnl --enable-clang-rewriter: check whether to enable clang rewriter
650 AC_ARG_ENABLE(clang-rewriter,
651 AS_HELP_STRING([--enable-clang-rewriter],
652 [Enable building of clang rewriter (default is YES)]),,
655 yes) AC_SUBST(ENABLE_CLANG_REWRITER,[1]) ;;
657 if test ${clang_arcmt} != "no" ; then
658 AC_MSG_ERROR([Cannot enable clang ARC Migration Tool while disabling rewriter.])
660 if test ${clang_static_analyzer} != "no" ; then
661 AC_MSG_ERROR([Cannot enable clang static analyzer while disabling rewriter.])
663 AC_SUBST(ENABLE_CLANG_REWRITER,[0])
665 default) AC_SUBST(ENABLE_CLANG_REWRITER,[1]);;
666 *) AC_MSG_ERROR([Invalid setting for --enable-clang-rewriter. Use "yes" or "no"]) ;;
669 dnl --enable-optimized : check whether they want to do an optimized build:
670 AC_ARG_ENABLE(optimized, AS_HELP_STRING(
671 --enable-optimized,[Compile with optimizations enabled (default is NO)]),,enableval=$optimize)
672 if test ${enableval} = "no" ; then
673 AC_SUBST(ENABLE_OPTIMIZED,[[]])
675 AC_SUBST(ENABLE_OPTIMIZED,[[ENABLE_OPTIMIZED=1]])
678 dnl --enable-profiling : check whether they want to do a profile build:
679 AC_ARG_ENABLE(profiling, AS_HELP_STRING(
680 --enable-profiling,[Compile with profiling enabled (default is NO)]),,enableval="no")
681 if test ${enableval} = "no" ; then
682 AC_SUBST(ENABLE_PROFILING,[[]])
684 AC_SUBST(ENABLE_PROFILING,[[ENABLE_PROFILING=1]])
687 dnl --enable-assertions : check whether they want to turn on assertions or not:
688 AC_ARG_ENABLE(assertions,AS_HELP_STRING(
689 --enable-assertions,[Compile with assertion checks enabled (default is YES)]),, enableval="yes")
690 if test ${enableval} = "yes" ; then
691 AC_SUBST(DISABLE_ASSERTIONS,[[]])
693 AC_SUBST(DISABLE_ASSERTIONS,[[DISABLE_ASSERTIONS=1]])
696 dnl --enable-werror : check whether we want Werror on by default
697 AC_ARG_ENABLE(werror,AS_HELP_STRING(
698 --enable-werror,[Compile with -Werror enabled (default is NO)]),, enableval="no")
700 yes) AC_SUBST(ENABLE_WERROR,[1]) ;;
701 no) AC_SUBST(ENABLE_WERROR,[0]) ;;
702 default) AC_SUBST(ENABLE_WERROR,[0]);;
703 *) AC_MSG_ERROR([Invalid setting for --enable-werror. Use "yes" or "no"]) ;;
706 dnl --enable-expensive-checks : check whether they want to turn on expensive debug checks:
707 AC_ARG_ENABLE(expensive-checks,AS_HELP_STRING(
708 --enable-expensive-checks,[Compile with expensive debug checks enabled (default is NO)]),, enableval="no")
709 if test ${enableval} = "yes" ; then
710 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[ENABLE_EXPENSIVE_CHECKS=1]])
711 AC_SUBST(EXPENSIVE_CHECKS,[[yes]])
713 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[]])
714 AC_SUBST(EXPENSIVE_CHECKS,[[no]])
717 dnl --enable-debug-runtime : should runtime libraries have debug symbols?
718 AC_ARG_ENABLE(debug-runtime,
719 AS_HELP_STRING(--enable-debug-runtime,[Build runtime libs with debug symbols (default is NO)]),,enableval=no)
720 if test ${enableval} = "no" ; then
721 AC_SUBST(DEBUG_RUNTIME,[[]])
723 AC_SUBST(DEBUG_RUNTIME,[[DEBUG_RUNTIME=1]])
726 dnl --enable-debug-symbols : should even optimized compiler libraries
727 dnl have debug symbols?
728 AC_ARG_ENABLE(debug-symbols,
729 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)
730 if test ${enableval} = "no" ; then
731 AC_SUBST(DEBUG_SYMBOLS,[[]])
733 AC_SUBST(DEBUG_SYMBOLS,[[DEBUG_SYMBOLS=1]])
736 dnl --enable-keep-symbols : do not strip installed executables
737 AC_ARG_ENABLE(keep-symbols,
738 AS_HELP_STRING(--enable-keep-symbols,[Do not strip installed executables)]),,enableval=no)
739 if test ${enableval} = "no" ; then
740 AC_SUBST(KEEP_SYMBOLS,[[]])
742 AC_SUBST(KEEP_SYMBOLS,[[KEEP_SYMBOLS=1]])
745 dnl --enable-jit: check whether they want to enable the jit
747 AS_HELP_STRING(--enable-jit,
748 [Enable Just In Time Compiling (default is YES)]),,
750 if test ${enableval} = "no"
754 case "$llvm_cv_target_arch" in
755 x86) AC_SUBST(TARGET_HAS_JIT,1) ;;
756 Sparc) AC_SUBST(TARGET_HAS_JIT,0) ;;
757 PowerPC) AC_SUBST(TARGET_HAS_JIT,1) ;;
758 x86_64) AC_SUBST(TARGET_HAS_JIT,1) ;;
759 ARM) AC_SUBST(TARGET_HAS_JIT,1) ;;
760 AArch64) AC_SUBST(TARGET_HAS_JIT,0) ;;
761 Mips) AC_SUBST(TARGET_HAS_JIT,1) ;;
762 XCore) AC_SUBST(TARGET_HAS_JIT,0) ;;
763 MSP430) AC_SUBST(TARGET_HAS_JIT,0) ;;
764 Hexagon) AC_SUBST(TARGET_HAS_JIT,0) ;;
765 NVPTX) AC_SUBST(TARGET_HAS_JIT,0) ;;
766 SystemZ) AC_SUBST(TARGET_HAS_JIT,1) ;;
767 *) AC_SUBST(TARGET_HAS_JIT,0) ;;
771 dnl Allow enablement of building and installing docs
773 AS_HELP_STRING([--enable-docs],
774 [Build documents (default is YES)]),,
777 yes) AC_SUBST(ENABLE_DOCS,[1]) ;;
778 no) AC_SUBST(ENABLE_DOCS,[0]) ;;
779 default) AC_SUBST(ENABLE_DOCS,[1]) ;;
780 *) AC_MSG_ERROR([Invalid setting for --enable-docs. Use "yes" or "no"]) ;;
783 dnl Allow enablement of doxygen generated documentation
784 AC_ARG_ENABLE(doxygen,
785 AS_HELP_STRING([--enable-doxygen],
786 [Build doxygen documentation (default is NO)]),,
789 yes) AC_SUBST(ENABLE_DOXYGEN,[1]) ;;
790 no) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
791 default) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
792 *) AC_MSG_ERROR([Invalid setting for --enable-doxygen. Use "yes" or "no"]) ;;
795 dnl Allow disablement of threads
796 AC_ARG_ENABLE(threads,
797 AS_HELP_STRING([--enable-threads],
798 [Use threads if available (default is YES)]),,
801 yes) AC_SUBST(LLVM_ENABLE_THREADS,[1]) ;;
802 no) AC_SUBST(LLVM_ENABLE_THREADS,[0]) ;;
803 default) AC_SUBST(LLVM_ENABLE_THREADS,[1]) ;;
804 *) AC_MSG_ERROR([Invalid setting for --enable-threads. Use "yes" or "no"]) ;;
806 AC_DEFINE_UNQUOTED([LLVM_ENABLE_THREADS],$LLVM_ENABLE_THREADS,
807 [Define if threads enabled])
809 dnl Allow disablement of pthread.h
810 AC_ARG_ENABLE(pthreads,
811 AS_HELP_STRING([--enable-pthreads],
812 [Use pthreads if available (default is YES)]),,
815 yes) AC_SUBST(ENABLE_PTHREADS,[1]) ;;
816 no) AC_SUBST(ENABLE_PTHREADS,[0]) ;;
817 default) AC_SUBST(ENABLE_PTHREADS,[1]) ;;
818 *) AC_MSG_ERROR([Invalid setting for --enable-pthreads. Use "yes" or "no"]) ;;
821 dnl Allow disablement of zlib
823 AS_HELP_STRING([--enable-zlib],
824 [Use zlib for compression/decompression if
825 available (default is YES)]),,
828 yes) AC_SUBST(LLVM_ENABLE_ZLIB,[1]) ;;
829 no) AC_SUBST(LLVM_ENABLE_ZLIB,[0]) ;;
830 default) AC_SUBST(LLVM_ENABLE_ZLIB,[1]) ;;
831 *) AC_MSG_ERROR([Invalid setting for --enable-zlib. Use "yes" or "no"]) ;;
833 AC_DEFINE_UNQUOTED([LLVM_ENABLE_ZLIB],$LLVM_ENABLE_ZLIB,
834 [Define if zlib is enabled])
836 dnl Allow building without position independent code
838 AS_HELP_STRING([--enable-pic],
839 [Build LLVM with Position Independent Code (default is YES)]),,
842 yes) AC_SUBST(ENABLE_PIC,[1]) ;;
843 no) AC_SUBST(ENABLE_PIC,[0]) ;;
844 default) AC_SUBST(ENABLE_PIC,[1]) ;;
845 *) AC_MSG_ERROR([Invalid setting for --enable-pic. Use "yes" or "no"]) ;;
847 AC_DEFINE_UNQUOTED([ENABLE_PIC],$ENABLE_PIC,
848 [Define if position independent code is enabled])
850 dnl Allow building a shared library and linking tools against it.
851 AC_ARG_ENABLE(shared,
852 AS_HELP_STRING([--enable-shared],
853 [Build a shared library and link tools against it (default is NO)]),,
856 yes) AC_SUBST(ENABLE_SHARED,[1]) ;;
857 no) AC_SUBST(ENABLE_SHARED,[0]) ;;
858 default) AC_SUBST(ENABLE_SHARED,[0]) ;;
859 *) AC_MSG_ERROR([Invalid setting for --enable-shared. Use "yes" or "no"]) ;;
862 dnl Allow libstdc++ is embedded in LLVM.dll.
863 AC_ARG_ENABLE(embed-stdcxx,
864 AS_HELP_STRING([--enable-embed-stdcxx],
865 [Build a shared library with embedded libstdc++ for Win32 DLL (default is NO)]),,
868 yes) AC_SUBST(ENABLE_EMBED_STDCXX,[1]) ;;
869 no) AC_SUBST(ENABLE_EMBED_STDCXX,[0]) ;;
870 default) AC_SUBST(ENABLE_EMBED_STDCXX,[0]) ;;
871 *) AC_MSG_ERROR([Invalid setting for --enable-embed-stdcxx. Use "yes" or "no"]) ;;
874 dnl Enable embedding timestamp information into build.
875 AC_ARG_ENABLE(timestamps,
876 AS_HELP_STRING([--enable-timestamps],
877 [Enable embedding timestamp information in build (default is YES)]),,
880 yes) AC_SUBST(ENABLE_TIMESTAMPS,[1]) ;;
881 no) AC_SUBST(ENABLE_TIMESTAMPS,[0]) ;;
882 default) AC_SUBST(ENABLE_TIMESTAMPS,[1]) ;;
883 *) AC_MSG_ERROR([Invalid setting for --enable-timestamps. Use "yes" or "no"]) ;;
885 AC_DEFINE_UNQUOTED([ENABLE_TIMESTAMPS],$ENABLE_TIMESTAMPS,
886 [Define if timestamp information (e.g., __DATE__) is allowed])
888 dnl Enable support for showing backtraces.
889 AC_ARG_ENABLE(backtraces, AS_HELP_STRING(
890 [--enable-backtraces],
891 [Enable embedding backtraces on crash (default is YES)]),
892 [case "$enableval" in
893 yes) llvm_cv_enable_backtraces="yes" ;;
894 no) llvm_cv_enable_backtraces="no" ;;
895 *) AC_MSG_ERROR([Invalid setting for --enable-backtraces. Use "yes" or "no"]) ;;
897 llvm_cv_enable_backtraces="yes")
898 if test "$llvm_cv_enable_backtraces" = "yes" ; then
899 AC_DEFINE([ENABLE_BACKTRACES],[1],
900 [Define if you want backtraces on crash])
903 dnl Enable installing platform specific signal handling overrides, for improved
904 dnl CrashRecovery support or interaction with crash reporting software. This
905 dnl support may be inappropriate for some clients embedding LLVM as a library.
906 AC_ARG_ENABLE(crash-overrides, AS_HELP_STRING(
907 [--enable-crash-overrides],
908 [Enable crash handling overrides (default is YES)]),
909 [case "$enableval" in
910 yes) llvm_cv_enable_crash_overrides="yes" ;;
911 no) llvm_cv_enable_crash_overrides="no" ;;
912 *) AC_MSG_ERROR([Invalid setting for --enable-crash-overrides. Use "yes" or "no"]) ;;
914 llvm_cv_enable_crash_overrides="yes")
915 if test "$llvm_cv_enable_crash_overrides" = "yes" ; then
916 AC_DEFINE([ENABLE_CRASH_OVERRIDES],[1],
917 [Define to enable crash handling overrides])
920 dnl Allow specific targets to be specified for building (or not)
922 AC_ARG_ENABLE([targets],AS_HELP_STRING([--enable-targets],
923 [Build specific host targets: all or target1,target2,... Valid targets are:
924 host, x86, x86_64, sparc, powerpc, arm, aarch64, mips, hexagon,
925 xcore, msp430, nvptx, systemz, r600, and cpp (default=all)]),,
927 if test "$enableval" = host-only ; then
931 all) TARGETS_TO_BUILD="X86 Sparc PowerPC AArch64 ARM Mips XCore MSP430 CppBackend NVPTX Hexagon SystemZ R600" ;;
932 *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
934 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
935 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
936 sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
937 powerpc) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
938 aarch64) TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
939 arm) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
940 mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
941 mipsel) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
942 mips64) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
943 mips64el) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
944 xcore) TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
945 msp430) TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;;
946 cpp) TARGETS_TO_BUILD="CppBackend $TARGETS_TO_BUILD" ;;
947 hexagon) TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;;
948 nvptx) TARGETS_TO_BUILD="NVPTX $TARGETS_TO_BUILD" ;;
949 systemz) TARGETS_TO_BUILD="SystemZ $TARGETS_TO_BUILD" ;;
950 r600) TARGETS_TO_BUILD="R600 $TARGETS_TO_BUILD" ;;
951 host) case "$llvm_cv_target_arch" in
952 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
953 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
954 Sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
955 PowerPC) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
956 AArch64) TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
957 ARM) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
958 Mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
959 XCore) TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
960 MSP430) TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;;
961 Hexagon) TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;;
962 NVPTX) TARGETS_TO_BUILD="NVPTX $TARGETS_TO_BUILD" ;;
963 SystemZ) TARGETS_TO_BUILD="SystemZ $TARGETS_TO_BUILD" ;;
964 *) AC_MSG_ERROR([Can not set target to build]) ;;
966 *) AC_MSG_ERROR([Unrecognized target $a_target]) ;;
972 AC_ARG_ENABLE([experimental-targets],AS_HELP_STRING([--enable-experimental-targets],
973 [Build experimental host targets: disable or target1,target2,...
974 (default=disable)]),,
977 if test ${enableval} != "disable"
979 TARGETS_TO_BUILD="$enableval $TARGETS_TO_BUILD"
982 AC_SUBST(TARGETS_TO_BUILD,$TARGETS_TO_BUILD)
984 dnl Determine whether we are building LLVM support for the native architecture.
985 dnl If so, define LLVM_NATIVE_ARCH to that LLVM target.
986 for a_target in $TARGETS_TO_BUILD; do
987 if test "$a_target" = "$LLVM_NATIVE_ARCH"; then
988 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ARCH, $LLVM_NATIVE_ARCH,
989 [LLVM architecture name for the native architecture, if available])
990 LLVM_NATIVE_TARGET="LLVMInitialize${LLVM_NATIVE_ARCH}Target"
991 LLVM_NATIVE_TARGETINFO="LLVMInitialize${LLVM_NATIVE_ARCH}TargetInfo"
992 LLVM_NATIVE_TARGETMC="LLVMInitialize${LLVM_NATIVE_ARCH}TargetMC"
993 LLVM_NATIVE_ASMPRINTER="LLVMInitialize${LLVM_NATIVE_ARCH}AsmPrinter"
994 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/Makefile ; then
995 LLVM_NATIVE_ASMPARSER="LLVMInitialize${LLVM_NATIVE_ARCH}AsmParser"
997 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/Makefile ; then
998 LLVM_NATIVE_DISASSEMBLER="LLVMInitialize${LLVM_NATIVE_ARCH}Disassembler"
1000 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGET, $LLVM_NATIVE_TARGET,
1001 [LLVM name for the native Target init function, if available])
1002 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGETINFO, $LLVM_NATIVE_TARGETINFO,
1003 [LLVM name for the native TargetInfo init function, if available])
1004 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGETMC, $LLVM_NATIVE_TARGETMC,
1005 [LLVM name for the native target MC init function, if available])
1006 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ASMPRINTER, $LLVM_NATIVE_ASMPRINTER,
1007 [LLVM name for the native AsmPrinter init function, if available])
1008 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/Makefile ; then
1009 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ASMPARSER, $LLVM_NATIVE_ASMPARSER,
1010 [LLVM name for the native AsmParser init function, if available])
1012 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/Makefile ; then
1013 AC_DEFINE_UNQUOTED(LLVM_NATIVE_DISASSEMBLER, $LLVM_NATIVE_DISASSEMBLER,
1014 [LLVM name for the native Disassembler init function, if available])
1019 dnl Build the LLVM_TARGET and LLVM_... macros for Targets.def and the individual
1020 dnl target feature def files.
1021 LLVM_ENUM_TARGETS=""
1022 LLVM_ENUM_ASM_PRINTERS=""
1023 LLVM_ENUM_ASM_PARSERS=""
1024 LLVM_ENUM_DISASSEMBLERS=""
1025 for target_to_build in $TARGETS_TO_BUILD; do
1026 LLVM_ENUM_TARGETS="LLVM_TARGET($target_to_build) $LLVM_ENUM_TARGETS"
1027 if test -f ${srcdir}/lib/Target/${target_to_build}/*AsmPrinter.cpp ; then
1028 LLVM_ENUM_ASM_PRINTERS="LLVM_ASM_PRINTER($target_to_build) $LLVM_ENUM_ASM_PRINTERS";
1030 if test -f ${srcdir}/lib/Target/${target_to_build}/AsmParser/Makefile ; then
1031 LLVM_ENUM_ASM_PARSERS="LLVM_ASM_PARSER($target_to_build) $LLVM_ENUM_ASM_PARSERS";
1033 if test -f ${srcdir}/lib/Target/${target_to_build}/Disassembler/Makefile ; then
1034 LLVM_ENUM_DISASSEMBLERS="LLVM_DISASSEMBLER($target_to_build) $LLVM_ENUM_DISASSEMBLERS";
1037 AC_SUBST(LLVM_ENUM_TARGETS)
1038 AC_SUBST(LLVM_ENUM_ASM_PRINTERS)
1039 AC_SUBST(LLVM_ENUM_ASM_PARSERS)
1040 AC_SUBST(LLVM_ENUM_DISASSEMBLERS)
1042 dnl Override the option to use for optimized builds.
1043 AC_ARG_WITH(optimize-option,
1044 AS_HELP_STRING([--with-optimize-option],
1045 [Select the compiler options to use for optimized builds]),,
1047 AC_MSG_CHECKING([optimization flags])
1050 case "$llvm_cv_os_type" in
1051 FreeBSD) optimize_option=-O2 ;;
1052 MingW) optimize_option=-O2 ;;
1053 *) optimize_option=-O3 ;;
1055 *) optimize_option="$withval" ;;
1057 AC_SUBST(OPTIMIZE_OPTION,$optimize_option)
1058 AC_MSG_RESULT([$optimize_option])
1060 dnl Specify extra build options
1061 AC_ARG_WITH(extra-options,
1062 AS_HELP_STRING([--with-extra-options],
1063 [Specify additional options to compile LLVM with]),,
1066 default) EXTRA_OPTIONS= ;;
1067 *) EXTRA_OPTIONS=$withval ;;
1069 AC_SUBST(EXTRA_OPTIONS,$EXTRA_OPTIONS)
1071 dnl Specify extra linker build options
1072 AC_ARG_WITH(extra-ld-options,
1073 AS_HELP_STRING([--with-extra-ld-options],
1074 [Specify additional options to link LLVM with]),,
1077 default) EXTRA_LD_OPTIONS= ;;
1078 *) EXTRA_LD_OPTIONS=$withval ;;
1080 AC_SUBST(EXTRA_LD_OPTIONS,$EXTRA_LD_OPTIONS)
1082 dnl Allow specific bindings to be specified for building (or not)
1083 AC_ARG_ENABLE([bindings],AS_HELP_STRING([--enable-bindings],
1084 [Build specific language bindings: all,auto,none,{binding-name} (default=auto)]),,
1086 BINDINGS_TO_BUILD=""
1087 case "$enableval" in
1088 yes | default | auto) BINDINGS_TO_BUILD="auto" ;;
1089 all ) BINDINGS_TO_BUILD="ocaml" ;;
1090 none | no) BINDINGS_TO_BUILD="" ;;
1091 *)for a_binding in `echo $enableval|sed -e 's/,/ /g' ` ; do
1092 case "$a_binding" in
1093 ocaml) BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD" ;;
1094 *) AC_MSG_ERROR([Unrecognized binding $a_binding]) ;;
1100 dnl Allow the ocaml libdir to be overridden. This could go in a configure
1101 dnl script for bindings/ocaml/configure, except that its auto value depends on
1102 dnl OCAMLC, which is found here to support tests.
1103 AC_ARG_WITH([ocaml-libdir],
1104 [AS_HELP_STRING([--with-ocaml-libdir],
1105 [Specify install location for ocaml bindings (default is stdlib)])],
1109 auto) with_ocaml_libdir="$withval" ;;
1110 /* | [[A-Za-z]]:[[\\/]]*) with_ocaml_libdir="$withval" ;;
1111 *) AC_MSG_ERROR([Invalid path for --with-ocaml-libdir. Provide full path]) ;;
1114 AC_ARG_WITH(clang-srcdir,
1115 AS_HELP_STRING([--with-clang-srcdir],
1116 [Directory to the out-of-tree Clang source]),,
1119 -) clang_src_root="" ;;
1120 /* | [[A-Za-z]]:[[\\/]]*) clang_src_root="$withval" ;;
1121 *) clang_src_root="$ac_pwd/$withval" ;;
1123 AC_SUBST(CLANG_SRC_ROOT,[$clang_src_root])
1125 AC_ARG_WITH(clang-resource-dir,
1126 AS_HELP_STRING([--with-clang-resource-dir],
1127 [Relative directory from the Clang binary for resource files]),,
1129 AC_DEFINE_UNQUOTED(CLANG_RESOURCE_DIR,"$withval",
1130 [Relative directory for resource files])
1132 AC_ARG_WITH(c-include-dirs,
1133 AS_HELP_STRING([--with-c-include-dirs],
1134 [Colon separated list of directories clang will search for headers]),,
1136 AC_DEFINE_UNQUOTED(C_INCLUDE_DIRS,"$withval",
1137 [Directories clang will search for headers])
1139 # Clang normally uses the system c++ headers and libraries. With this option,
1140 # clang will use the ones provided by a gcc installation instead. This option should
1141 # be passed the same value that was used with --prefix when configuring gcc.
1142 AC_ARG_WITH(gcc-toolchain,
1143 AS_HELP_STRING([--with-gcc-toolchain],
1144 [Directory where gcc is installed.]),,
1146 AC_DEFINE_UNQUOTED(GCC_INSTALL_PREFIX,"$withval",
1147 [Directory where gcc is installed.])
1149 AC_ARG_WITH(default-sysroot,
1150 AS_HELP_STRING([--with-default-sysroot],
1151 [Add --sysroot=<path> to all compiler invocations.]),,
1153 AC_DEFINE_UNQUOTED(DEFAULT_SYSROOT,"$withval",
1154 [Default <path> to all compiler invocations for --sysroot=<path>.])
1156 dnl Allow linking of LLVM with GPLv3 binutils code.
1157 AC_ARG_WITH(binutils-include,
1158 AS_HELP_STRING([--with-binutils-include],
1159 [Specify path to binutils/include/ containing plugin-api.h file for gold plugin.]),,
1162 default) WITH_BINUTILS_INCDIR=default ;;
1163 /* | [[A-Za-z]]:[[\\/]]*) WITH_BINUTILS_INCDIR=$withval ;;
1164 *) AC_MSG_ERROR([Invalid path for --with-binutils-include. Provide full path]) ;;
1166 if test "x$WITH_BINUTILS_INCDIR" != xdefault ; then
1167 AC_SUBST(BINUTILS_INCDIR,$WITH_BINUTILS_INCDIR)
1168 if test ! -f "$WITH_BINUTILS_INCDIR/plugin-api.h"; then
1169 echo "$WITH_BINUTILS_INCDIR/plugin-api.h"
1170 AC_MSG_ERROR([Invalid path to directory containing plugin-api.h.]);
1174 dnl Specify the URL where bug reports should be submitted.
1175 AC_ARG_WITH(bug-report-url,
1176 AS_HELP_STRING([--with-bug-report-url],
1177 [Specify the URL where bug reports should be submitted (default=http://llvm.org/bugs/)]),,
1178 withval="http://llvm.org/bugs/")
1179 AC_DEFINE_UNQUOTED(BUG_REPORT_URL,"$withval",
1182 dnl --enable-terminfo: check whether the user wants to control use of terminfo:
1183 AC_ARG_ENABLE(terminfo,AS_HELP_STRING(
1184 [--enable-terminfo],
1185 [Query the terminfo database if available (default is YES)]),
1186 [case "$enableval" in
1187 yes) llvm_cv_enable_terminfo="yes" ;;
1188 no) llvm_cv_enable_terminfo="no" ;;
1189 *) AC_MSG_ERROR([Invalid setting for --enable-terminfo. Use "yes" or "no"]) ;;
1191 llvm_cv_enable_terminfo="yes")
1193 dnl --enable-libedit: check whether the user wants to turn off libedit.
1194 AC_ARG_ENABLE(libedit,AS_HELP_STRING(
1196 [Use libedit if available (default is YES)]),
1197 [case "$enableval" in
1198 yes) llvm_cv_enable_libedit="yes" ;;
1199 no) llvm_cv_enable_libedit="no" ;;
1200 *) AC_MSG_ERROR([Invalid setting for --enable-libedit. Use "yes" or "no"]) ;;
1202 llvm_cv_enable_libedit="yes")
1204 dnl --enable-libffi : check whether the user wants to turn off libffi:
1205 AC_ARG_ENABLE(libffi,AS_HELP_STRING(
1206 --enable-libffi,[Check for the presence of libffi (default is NO)]),
1207 [case "$enableval" in
1208 yes) llvm_cv_enable_libffi="yes" ;;
1209 no) llvm_cv_enable_libffi="no" ;;
1210 *) AC_MSG_ERROR([Invalid setting for --enable-libffi. Use "yes" or "no"]) ;;
1212 llvm_cv_enable_libffi=no)
1214 AC_ARG_WITH(internal-prefix,
1215 AS_HELP_STRING([--with-internal-prefix],
1216 [Installation directory for internal files]),,
1218 AC_SUBST(INTERNAL_PREFIX,[$withval])
1220 dnl===-----------------------------------------------------------------------===
1222 dnl=== SECTION 4: Check for programs we need and that they are the right version
1224 dnl===-----------------------------------------------------------------------===
1229 dnl Check for the tools that the makefiles require
1232 AC_PATH_PROG(CMP, [cmp], [cmp])
1233 AC_PATH_PROG(CP, [cp], [cp])
1234 AC_PATH_PROG(DATE, [date], [date])
1235 AC_PATH_PROG(FIND, [find], [find])
1236 AC_PATH_PROG(GREP, [grep], [grep])
1237 AC_PATH_PROG(MKDIR,[mkdir],[mkdir])
1238 AC_PATH_PROG(MV, [mv], [mv])
1240 AC_CHECK_TOOL(AR, ar, false)
1241 AC_PATH_PROG(RM, [rm], [rm])
1242 AC_PATH_PROG(SED, [sed], [sed])
1243 AC_PATH_PROG(TAR, [tar], [gtar])
1244 AC_PATH_PROG(BINPWD,[pwd], [pwd])
1246 dnl Looking for misc. graph plotting software
1247 AC_PATH_PROG(GRAPHVIZ, [Graphviz], [echo Graphviz])
1248 if test "$GRAPHVIZ" != "echo Graphviz" ; then
1249 AC_DEFINE([HAVE_GRAPHVIZ],[1],[Define if the Graphviz program is available])
1250 dnl If we're targeting for mingw we should emit windows paths, not msys
1251 if test "$llvm_cv_os_type" = "MingW" ; then
1252 GRAPHVIZ=`echo $GRAPHVIZ | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1254 AC_DEFINE_UNQUOTED([LLVM_PATH_GRAPHVIZ],"$GRAPHVIZ${EXEEXT}",
1255 [Define to path to Graphviz program if found or 'echo Graphviz' otherwise])
1257 AC_PATH_PROG(DOT, [dot], [echo dot])
1258 if test "$DOT" != "echo dot" ; then
1259 AC_DEFINE([HAVE_DOT],[1],[Define if the dot program is available])
1260 dnl If we're targeting for mingw we should emit windows paths, not msys
1261 if test "$llvm_cv_os_type" = "MingW" ; then
1262 DOT=`echo $DOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1264 AC_DEFINE_UNQUOTED([LLVM_PATH_DOT],"$DOT${EXEEXT}",
1265 [Define to path to dot program if found or 'echo dot' otherwise])
1267 AC_PATH_PROG(FDP, [fdp], [echo fdp])
1268 if test "$FDP" != "echo fdp" ; then
1269 AC_DEFINE([HAVE_FDP],[1],[Define if the neat program is available])
1270 dnl If we're targeting for mingw we should emit windows paths, not msys
1271 if test "$llvm_cv_os_type" = "MingW" ; then
1272 FDP=`echo $FDP | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1274 AC_DEFINE_UNQUOTED([LLVM_PATH_FDP],"$FDP${EXEEXT}",
1275 [Define to path to fdp program if found or 'echo fdp' otherwise])
1277 AC_PATH_PROG(NEATO, [neato], [echo neato])
1278 if test "$NEATO" != "echo neato" ; then
1279 AC_DEFINE([HAVE_NEATO],[1],[Define if the neat program is available])
1280 dnl If we're targeting for mingw we should emit windows paths, not msys
1281 if test "$llvm_cv_os_type" = "MingW" ; then
1282 NEATO=`echo $NEATO | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1284 AC_DEFINE_UNQUOTED([LLVM_PATH_NEATO],"$NEATO${EXEEXT}",
1285 [Define to path to neato program if found or 'echo neato' otherwise])
1287 AC_PATH_PROG(TWOPI, [twopi], [echo twopi])
1288 if test "$TWOPI" != "echo twopi" ; then
1289 AC_DEFINE([HAVE_TWOPI],[1],[Define if the neat program is available])
1290 dnl If we're targeting for mingw we should emit windows paths, not msys
1291 if test "$llvm_cv_os_type" = "MingW" ; then
1292 TWOPI=`echo $TWOPI | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1294 AC_DEFINE_UNQUOTED([LLVM_PATH_TWOPI],"$TWOPI${EXEEXT}",
1295 [Define to path to twopi program if found or 'echo twopi' otherwise])
1297 AC_PATH_PROG(CIRCO, [circo], [echo circo])
1298 if test "$CIRCO" != "echo circo" ; then
1299 AC_DEFINE([HAVE_CIRCO],[1],[Define if the neat program is available])
1300 dnl If we're targeting for mingw we should emit windows paths, not msys
1301 if test "$llvm_cv_os_type" = "MingW" ; then
1302 CIRCO=`echo $CIRCO | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1304 AC_DEFINE_UNQUOTED([LLVM_PATH_CIRCO],"$CIRCO${EXEEXT}",
1305 [Define to path to circo program if found or 'echo circo' otherwise])
1307 AC_PATH_PROGS(GV, [gv gsview32], [echo gv])
1308 if test "$GV" != "echo gv" ; then
1309 AC_DEFINE([HAVE_GV],[1],[Define if the gv program is available])
1310 dnl If we're targeting for mingw we should emit windows paths, not msys
1311 if test "$llvm_cv_os_type" = "MingW" ; then
1312 GV=`echo $GV | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1314 AC_DEFINE_UNQUOTED([LLVM_PATH_GV],"$GV${EXEEXT}",
1315 [Define to path to gv program if found or 'echo gv' otherwise])
1317 AC_PATH_PROG(DOTTY, [dotty], [echo dotty])
1318 if test "$DOTTY" != "echo dotty" ; then
1319 AC_DEFINE([HAVE_DOTTY],[1],[Define if the dotty program is available])
1320 dnl If we're targeting for mingw we should emit windows paths, not msys
1321 if test "$llvm_cv_os_type" = "MingW" ; then
1322 DOTTY=`echo $DOTTY | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1324 AC_DEFINE_UNQUOTED([LLVM_PATH_DOTTY],"$DOTTY${EXEEXT}",
1325 [Define to path to dotty program if found or 'echo dotty' otherwise])
1327 AC_PATH_PROGS(XDOT, [xdot xdot.py], [echo xdot])
1328 if test "$XDOT" != "echo xdot" ; then
1329 AC_DEFINE([HAVE_XDOT],[1],[Define if the xdot program is available])
1330 dnl If we're targeting for mingw we should emit windows paths, not msys
1331 if test "$llvm_cv_os_type" = "MingW" ; then
1332 XDOT=`echo $XDOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1334 AC_DEFINE_UNQUOTED([LLVM_PATH_XDOT],"$XDOT${EXEEXT}",
1335 [Define to path to xdot program if found or 'echo xdot' otherwise])
1338 dnl Find the install program
1340 dnl Prepend src dir to install path dir if it's a relative path
1341 dnl This is a hack for installs that take place in something other
1342 dnl than the top level.
1344 [[\\/$]]* | ?:[[\\/]]* ) ;;
1345 *) INSTALL="\\\$(TOPSRCDIR)/$INSTALL" ;;
1348 dnl Checks for documentation and testing tools that we can do without. If these
1349 dnl are not found then they are set to "true" which always succeeds but does
1350 dnl nothing. This just lets the build output show that we could have done
1351 dnl something if the tool was available.
1352 AC_PATH_PROG(BZIP2, [bzip2])
1353 AC_PATH_PROG(CAT, [cat])
1354 AC_PATH_PROG(DOXYGEN, [doxygen])
1355 AC_PATH_PROG(GROFF, [groff])
1356 AC_PATH_PROG(GZIPBIN, [gzip])
1357 AC_PATH_PROG(PDFROFF, [pdfroff])
1358 AC_PATH_PROG(ZIP, [zip])
1359 AC_PATH_PROGS(OCAMLC, [ocamlc])
1360 AC_PATH_PROGS(OCAMLOPT, [ocamlopt])
1361 AC_PATH_PROGS(OCAMLDEP, [ocamldep])
1362 AC_PATH_PROGS(OCAMLDOC, [ocamldoc])
1363 AC_PATH_PROGS(GAS, [gas as])
1365 dnl Get the version of the linker in use.
1368 dnl Determine whether the linker supports the -R option.
1371 dnl Determine whether the compiler supports the -rdynamic option.
1372 AC_LINK_EXPORT_DYNAMIC
1374 dnl Determine whether the linker supports the --version-script option.
1375 AC_LINK_VERSION_SCRIPT
1377 dnl Check for libtool and the library that has dlopen function (which must come
1378 dnl before the AC_PROG_LIBTOOL check in order to enable dlopening libraries with
1383 AC_MSG_CHECKING([tool compatibility])
1385 dnl Ensure that compilation tools are GCC or a GNU compatible compiler such as
1386 dnl ICC; we use GCC specific options in the makefiles so the compiler needs
1387 dnl to support those options.
1388 dnl "icc" emits gcc signatures
1389 dnl "icc -no-gcc" emits no gcc signature BUT is still compatible
1401 if test "$GCC" != "yes" && test "$ICC" != "yes"
1403 AC_MSG_ERROR([gcc|icc required but not found])
1406 dnl Ensure that compilation tools are compatible with GCC extensions
1407 if test "$GXX" != "yes" && test "$IXX" != "yes"
1409 AC_MSG_ERROR([g++|clang++|icc required but not found])
1412 dnl Verify that GCC is version 3.0 or higher
1413 if test "$GCC" = "yes"
1418 #if !defined(__GNUC__) || __GNUC__ < 3
1419 #error Unsupported GCC version
1423 [], [AC_MSG_ERROR([gcc 3.x required, but you have a lower version])])
1426 dnl Check for GNU Make. We use its extensions, so don't build without it
1427 if test -z "$llvm_cv_gnu_make_command"
1429 AC_MSG_ERROR([GNU Make required but not found])
1432 dnl Tool compatibility is okay if we make it here.
1435 dnl Check optional compiler flags.
1436 AC_MSG_CHECKING([optional compiler flags])
1437 CXX_FLAG_CHECK(NO_VARIADIC_MACROS, [-Wno-variadic-macros])
1438 CXX_FLAG_CHECK(NO_MISSING_FIELD_INITIALIZERS, [-Wno-missing-field-initializers])
1439 CXX_FLAG_CHECK(COVERED_SWITCH_DEFAULT, [-Wcovered-switch-default])
1441 dnl GCC's potential uninitialized use analysis is weak and presents lots of
1442 dnl false positives, so disable it.
1444 NO_MAYBE_UNINITIALIZED=
1445 if test "$GXX" = "yes"
1447 CXX_FLAG_CHECK(NO_MAYBE_UNINITIALIZED, [-Wno-maybe-uninitialized])
1448 dnl gcc 4.7 introduced -Wmaybe-uninitialized to distinguish cases which are
1449 dnl known to be uninitialized from cases which might be uninitialized. We
1450 dnl still want to catch the first kind of errors.
1451 if test -z "$NO_MAYBE_UNINITIALIZED"
1453 CXX_FLAG_CHECK(NO_UNINITIALIZED, [-Wno-uninitialized])
1456 AC_MSG_RESULT([$NO_VARIADIC_MACROS $NO_MISSING_FIELD_INITIALIZERS $COVERED_SWITCH_DEFAULT $NO_UNINITIALIZED $NO_MAYBE_UNINITIALIZED])
1458 AC_ARG_WITH([python],
1459 [AS_HELP_STRING([--with-python], [path to python])],
1460 [PYTHON="$withval"])
1462 if test -n "$PYTHON" && test -x "$PYTHON" ; then
1463 AC_MSG_CHECKING([for python])
1464 AC_MSG_RESULT([user defined: $with_python])
1466 if test -n "$PYTHON" ; then
1467 AC_MSG_WARN([specified python ($PYTHON) is not usable, searching path])
1470 AC_PATH_PROG([PYTHON], [python python2 python26],
1471 [AC_MSG_RESULT([not found])
1472 AC_MSG_ERROR([could not find python 2.5 or higher])])
1475 AC_MSG_CHECKING([for python >= 2.5])
1476 ac_python_version=`$PYTHON -V 2>&1 | cut -d' ' -f2`
1477 ac_python_version_major=`echo $ac_python_version | cut -d'.' -f1`
1478 ac_python_version_minor=`echo $ac_python_version | cut -d'.' -f2`
1479 ac_python_version_patch=`echo $ac_python_version | cut -d'.' -f3`
1480 if test "$ac_python_version_major" -gt "2" || \
1481 (test "$ac_python_version_major" -eq "2" && \
1482 test "$ac_python_version_minor" -ge "5") ; then
1483 AC_MSG_RESULT([$PYTHON ($ac_python_version)])
1485 AC_MSG_RESULT([not found])
1486 AC_MSG_FAILURE([found python $ac_python_version ($PYTHON); required >= 2.5])
1489 dnl===-----------------------------------------------------------------------===
1491 dnl=== SECTION 5: Check for libraries
1493 dnl===-----------------------------------------------------------------------===
1496 if test "$llvm_cv_os_type" = "MingW" ; then
1497 AC_CHECK_LIB(imagehlp, main)
1498 AC_CHECK_LIB(psapi, main)
1499 AC_CHECK_LIB(shell32, main)
1502 dnl dlopen() is required for plugin support.
1503 AC_SEARCH_LIBS(dlopen,dl,AC_DEFINE([HAVE_DLOPEN],[1],
1504 [Define if dlopen() is available on this platform.]),
1505 AC_MSG_WARN([dlopen() not found - disabling plugin support]))
1507 dnl Search for the clock_gettime() function. Note that we rely on the POSIX
1508 dnl macros to detect whether clock_gettime is available, this just finds the
1509 dnl right libraries to link with.
1510 AC_SEARCH_LIBS(clock_gettime,rt)
1512 dnl The curses library is optional; used for querying terminal info
1513 if test "$llvm_cv_enable_terminfo" = "yes" ; then
1514 dnl We need the has_color functionality in curses for it to be useful.
1515 AC_SEARCH_LIBS(setupterm,tinfo terminfo curses ncurses ncursesw,
1516 AC_DEFINE([HAVE_TERMINFO],[1],
1517 [Define if the setupterm() function is supported this platform.]))
1520 dnl The libedit library is optional; used by lib/LineEditor
1521 if test "$llvm_cv_enable_libedit" = "yes" ; then
1522 AC_SEARCH_LIBS(el_init,edit,
1523 AC_DEFINE([HAVE_LIBEDIT],[1],
1524 [Define if libedit is available on this platform.]))
1527 dnl libffi is optional; used to call external functions from the interpreter
1528 if test "$llvm_cv_enable_libffi" = "yes" ; then
1529 AC_SEARCH_LIBS(ffi_call,ffi,AC_DEFINE([HAVE_FFI_CALL],[1],
1530 [Define if libffi is available on this platform.]),
1531 AC_MSG_ERROR([libffi not found - configure without --enable-libffi to compile without it]))
1534 dnl mallinfo is optional; the code can compile (minus features) without it
1535 AC_SEARCH_LIBS(mallinfo,malloc,AC_DEFINE([HAVE_MALLINFO],[1],
1536 [Define if mallinfo() is available on this platform.]))
1538 dnl pthread locking functions are optional - but llvm will not be thread-safe
1540 if test "$LLVM_ENABLE_THREADS" -eq 1 && test "$ENABLE_PTHREADS" -eq 1 ; then
1541 AC_CHECK_LIB(pthread, pthread_mutex_init)
1542 AC_SEARCH_LIBS(pthread_mutex_lock,pthread,
1543 AC_DEFINE([HAVE_PTHREAD_MUTEX_LOCK],[1],
1544 [Have pthread_mutex_lock]))
1545 AC_SEARCH_LIBS(pthread_rwlock_init,pthread,
1546 AC_DEFINE([HAVE_PTHREAD_RWLOCK_INIT],[1],
1547 [Have pthread_rwlock_init]))
1548 AC_SEARCH_LIBS(pthread_getspecific,pthread,
1549 AC_DEFINE([HAVE_PTHREAD_GETSPECIFIC],[1],
1550 [Have pthread_getspecific]))
1553 dnl zlib is optional; used for compression/uncompression
1554 if test "$LLVM_ENABLE_ZLIB" -eq 1 ; then
1555 AC_CHECK_LIB(z, compress2)
1558 dnl Allow extra x86-disassembler library
1560 AS_HELP_STRING([--with-udis86=<path>],
1561 [Use udis86 external x86 disassembler library]),
1563 AC_SUBST(USE_UDIS86, [1])
1566 *) LDFLAGS="$LDFLAGS -L${withval}" ;;
1568 AC_CHECK_LIB(udis86, ud_init, [], [
1569 echo "Error! You need to have libudis86 around."
1573 AC_SUBST(USE_UDIS86, [0]))
1574 AC_DEFINE_UNQUOTED([USE_UDIS86],$USE_UDIS86,
1575 [Define if use udis86 library])
1577 dnl Allow OProfile support for JIT output.
1578 AC_ARG_WITH(oprofile,
1579 AS_HELP_STRING([--with-oprofile=<prefix>],
1580 [Tell OProfile >= 0.9.4 how to symbolize JIT output]),
1582 AC_SUBST(USE_OPROFILE, [1])
1584 /usr|yes) llvm_cv_oppath=/usr/lib/oprofile ;;
1586 AC_SUBST(USE_OPROFILE, [0]) ;;
1587 *) llvm_cv_oppath="${withval}/lib/oprofile"
1588 CPPFLAGS="-I${withval}/include";;
1590 case $llvm_cv_os_type in
1592 if test -n "$llvm_cv_oppath" ; then
1593 LIBS="$LIBS -lopagent -L${llvm_cv_oppath} -Wl,-rpath,${llvm_cv_oppath}"
1594 dnl Work around http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=537744:
1595 dnl libbfd is not included properly in libopagent in some Debian
1596 dnl versions. If libbfd isn't found at all, we assume opagent works
1598 AC_SEARCH_LIBS(bfd_init, bfd, [], [])
1599 AC_SEARCH_LIBS(op_open_agent, opagent, [], [
1600 echo "Error! You need to have libopagent around."
1603 AC_CHECK_HEADER([opagent.h], [], [
1604 echo "Error! You need to have opagent.h around."
1609 AC_MSG_ERROR([OProfile support is available on Linux only.]) ;;
1613 AC_SUBST(USE_OPROFILE, [0])
1615 AC_DEFINE_UNQUOTED([LLVM_USE_OPROFILE],$USE_OPROFILE,
1616 [Define if we have the oprofile JIT-support library])
1618 dnl Enable support for Intel JIT Events API.
1619 AC_ARG_WITH(intel-jitevents,
1620 AS_HELP_STRING([--with-intel-jitevents Notify Intel JIT profiling API of generated code]),
1623 yes) AC_SUBST(USE_INTEL_JITEVENTS,[1]);;
1624 no) AC_SUBST(USE_INTEL_JITEVENTS,[0]);;
1625 *) AC_MSG_ERROR([Invalid setting for --with-intel-jitevents. Use "yes" or "no"]);;
1628 case $llvm_cv_os_type in
1629 Linux|Win32|Cygwin|MingW) ;;
1630 *) AC_MSG_ERROR([Intel JIT API support is available on Linux and Windows only.]);;
1633 case "$llvm_cv_target_arch" in
1635 *) AC_MSG_ERROR([Target architecture $llvm_cv_target_arch does not support Intel JIT Events API.]);;
1639 AC_SUBST(USE_INTEL_JITEVENTS, [0])
1641 AC_DEFINE_UNQUOTED([LLVM_USE_INTEL_JITEVENTS],$USE_INTEL_JITEVENTS,
1642 [Define if we have the Intel JIT API runtime support library])
1644 dnl Check for libxml2
1645 dnl Right now we're just checking for the existence, we could also check for a
1646 dnl particular version via --version on xml2-config
1647 AC_CHECK_PROGS(XML2CONFIG, xml2-config)
1649 AC_MSG_CHECKING(for libxml2 includes)
1650 if test "x$XML2CONFIG" = "x"; then
1651 AC_MSG_RESULT(xml2-config not found)
1653 LIBXML2_INC=`$XML2CONFIG --cflags`
1654 AC_MSG_RESULT($LIBXML2_INC)
1655 AC_CHECK_LIB(xml2, xmlReadFile,[AC_DEFINE([CLANG_HAVE_LIBXML],1,[Define if we have libxml2])
1656 LIBXML2_LIBS="-lxml2"])
1658 AC_SUBST(LIBXML2_LIBS)
1659 AC_SUBST(LIBXML2_INC)
1661 dnl===-----------------------------------------------------------------------===
1663 dnl=== SECTION 6: Check for header files
1665 dnl===-----------------------------------------------------------------------===
1667 dnl First, use autoconf provided macros for specific headers that we need
1668 dnl We don't check for ancient stuff or things that are guaranteed to be there
1669 dnl by the C++ standard. We always use the <cfoo> versions of <foo.h> C headers.
1670 dnl Generally we're looking for POSIX headers.
1672 AC_HEADER_MMAP_ANONYMOUS
1678 AC_CHECK_HEADERS([cxxabi.h])
1680 AC_CHECK_HEADERS([dlfcn.h execinfo.h fcntl.h inttypes.h link.h])
1681 AC_CHECK_HEADERS([malloc.h setjmp.h signal.h stdint.h termios.h unistd.h])
1682 AC_CHECK_HEADERS([utime.h])
1683 AC_CHECK_HEADERS([sys/mman.h sys/param.h sys/resource.h sys/time.h sys/uio.h])
1684 AC_CHECK_HEADERS([sys/ioctl.h malloc/malloc.h mach/mach.h])
1685 AC_CHECK_HEADERS([valgrind/valgrind.h])
1686 AC_CHECK_HEADERS([fenv.h])
1687 AC_CHECK_DECLS([FE_ALL_EXCEPT, FE_INEXACT], [], [], [[#include <fenv.h>]])
1688 if test "$LLVM_ENABLE_THREADS" -eq 1 && test "$ENABLE_PTHREADS" -eq 1 ; then
1689 AC_CHECK_HEADERS(pthread.h,
1690 AC_SUBST(HAVE_PTHREAD, 1),
1691 AC_SUBST(HAVE_PTHREAD, 0))
1693 AC_SUBST(HAVE_PTHREAD, 0)
1695 if test "$LLVM_ENABLE_ZLIB" -eq 1 ; then
1696 AC_CHECK_HEADERS(zlib.h,
1697 AC_SUBST(HAVE_LIBZ, 1),
1698 AC_SUBST(HAVE_LIBZ, 0))
1700 AC_SUBST(HAVE_LIBZ, 0)
1703 dnl Try to find ffi.h.
1704 if test "$llvm_cv_enable_libffi" = "yes" ; then
1705 AC_CHECK_HEADERS([ffi.h ffi/ffi.h])
1708 dnl Try to find Darwin specific crash reporting libraries.
1709 AC_CHECK_HEADERS([CrashReporterClient.h])
1711 dnl Try to find Darwin specific crash reporting global.
1712 AC_MSG_CHECKING([__crashreporter_info__])
1716 extern const char *__crashreporter_info__;
1718 __crashreporter_info__ = "test";
1724 AC_MSG_RESULT([yes])
1725 AC_DEFINE([HAVE_CRASHREPORTER_INFO], [1], [can use __crashreporter_info__])
1729 AC_DEFINE([HAVE_CRASHREPORTER_INFO], [0], [can use __crashreporter_info__])
1732 dnl===-----------------------------------------------------------------------===
1734 dnl=== SECTION 7: Check for types and structures
1736 dnl===-----------------------------------------------------------------------===
1741 AC_DEFINE_UNQUOTED([RETSIGTYPE],[void],[Define as the return type of signal handlers (`int' or `void').])
1743 AC_CHECK_TYPES([int64_t],,AC_MSG_ERROR([Type int64_t required but not found]))
1744 AC_CHECK_TYPES([uint64_t],,
1745 AC_CHECK_TYPES([u_int64_t],,
1746 AC_MSG_ERROR([Type uint64_t or u_int64_t required but not found])))
1748 dnl===-----------------------------------------------------------------------===
1750 dnl=== SECTION 8: Check for specific functions needed
1752 dnl===-----------------------------------------------------------------------===
1754 AC_CHECK_FUNCS([backtrace ceilf floorf roundf rintf nearbyintf getcwd ])
1755 AC_CHECK_FUNCS([powf fmodf strtof round ])
1756 AC_CHECK_FUNCS([log log2 log10 exp exp2])
1757 AC_CHECK_FUNCS([getpagesize getrusage getrlimit setrlimit gettimeofday ])
1758 AC_CHECK_FUNCS([isatty mkdtemp mkstemp ])
1759 AC_CHECK_FUNCS([mktemp posix_spawn pread realpath sbrk setrlimit ])
1760 AC_CHECK_FUNCS([strerror strerror_r setenv ])
1761 AC_CHECK_FUNCS([strtoll strtoq sysconf malloc_zone_statistics ])
1762 AC_CHECK_FUNCS([setjmp longjmp sigsetjmp siglongjmp writev])
1763 AC_CHECK_FUNCS([futimes futimens])
1767 dnl Check for arc4random accessible via AC_INCLUDES_DEFAULT.
1768 AC_CHECK_DECLS([arc4random])
1770 dnl Check the declaration "Secure API" on Windows environments.
1771 AC_CHECK_DECLS([strerror_s])
1773 dnl Check symbols in libgcc.a for JIT on Mingw.
1774 if test "$llvm_cv_os_type" = "MingW" ; then
1775 AC_CHECK_LIB(gcc,_alloca,AC_DEFINE([HAVE__ALLOCA],[1],[Have host's _alloca]))
1776 AC_CHECK_LIB(gcc,__alloca,AC_DEFINE([HAVE___ALLOCA],[1],[Have host's __alloca]))
1777 AC_CHECK_LIB(gcc,__chkstk,AC_DEFINE([HAVE___CHKSTK],[1],[Have host's __chkstk]))
1778 AC_CHECK_LIB(gcc,___chkstk,AC_DEFINE([HAVE____CHKSTK],[1],[Have host's ___chkstk]))
1780 AC_CHECK_LIB(gcc,__ashldi3,AC_DEFINE([HAVE___ASHLDI3],[1],[Have host's __ashldi3]))
1781 AC_CHECK_LIB(gcc,__ashrdi3,AC_DEFINE([HAVE___ASHRDI3],[1],[Have host's __ashrdi3]))
1782 AC_CHECK_LIB(gcc,__divdi3,AC_DEFINE([HAVE___DIVDI3],[1],[Have host's __divdi3]))
1783 AC_CHECK_LIB(gcc,__fixdfdi,AC_DEFINE([HAVE___FIXDFDI],[1],[Have host's __fixdfdi]))
1784 AC_CHECK_LIB(gcc,__fixsfdi,AC_DEFINE([HAVE___FIXSFDI],[1],[Have host's __fixsfdi]))
1785 AC_CHECK_LIB(gcc,__floatdidf,AC_DEFINE([HAVE___FLOATDIDF],[1],[Have host's __floatdidf]))
1786 AC_CHECK_LIB(gcc,__lshrdi3,AC_DEFINE([HAVE___LSHRDI3],[1],[Have host's __lshrdi3]))
1787 AC_CHECK_LIB(gcc,__moddi3,AC_DEFINE([HAVE___MODDI3],[1],[Have host's __moddi3]))
1788 AC_CHECK_LIB(gcc,__udivdi3,AC_DEFINE([HAVE___UDIVDI3],[1],[Have host's __udivdi3]))
1789 AC_CHECK_LIB(gcc,__umoddi3,AC_DEFINE([HAVE___UMODDI3],[1],[Have host's __umoddi3]))
1791 AC_CHECK_LIB(gcc,__main,AC_DEFINE([HAVE___MAIN],[1],[Have host's __main]))
1792 AC_CHECK_LIB(gcc,__cmpdi2,AC_DEFINE([HAVE___CMPDI2],[1],[Have host's __cmpdi2]))
1795 dnl Check Win32 API EnumerateLoadedModules.
1796 if test "$llvm_cv_os_type" = "MingW" ; then
1797 AC_MSG_CHECKING([whether EnumerateLoadedModules() accepts new decl])
1801 #include <windows.h>
1802 #include <imagehlp.h>
1803 extern void foo(PENUMLOADED_MODULES_CALLBACK);
1804 extern void foo(BOOL(CALLBACK*)(PCSTR,ULONG_PTR,ULONG,PVOID));
1808 AC_MSG_RESULT([yes])
1809 llvm_cv_win32_elmcb_pcstr="PCSTR"
1813 llvm_cv_win32_elmcb_pcstr="PSTR"
1815 AC_DEFINE_UNQUOTED([WIN32_ELMCB_PCSTR],$llvm_cv_win32_elmcb_pcstr,[Type of 1st arg on ELM Callback])
1818 dnl Check for variations in the Standard C++ library and STL. These macros are
1819 dnl provided by LLVM in the autoconf/m4 directory.
1823 dnl Check for mmap support.We also need to know if /dev/zero is required to
1824 dnl be opened for allocating RWX memory.
1825 dnl Make sure we aren't attempting to configure for an unknown system
1826 if test "$llvm_cv_platform_type" = "Unix" ; then
1829 AC_NEED_DEV_ZERO_FOR_MMAP
1831 if test "$ac_cv_func_mmap_fixed_mapped" = "no"
1833 AC_MSG_WARN([mmap() of a fixed address required but not supported])
1835 if test "$ac_cv_func_mmap_file" = "no"
1837 AC_MSG_WARN([mmap() of files required but not found])
1841 dnl atomic builtins are required for threading support.
1842 AC_MSG_CHECKING(for GCC atomic builtins)
1843 dnl Since we'll be using these atomic builtins in C++ files we should test
1844 dnl the C++ compiler.
1850 volatile unsigned long val = 1;
1851 __sync_synchronize();
1852 __sync_val_compare_and_swap(&val, 1, 0);
1853 __sync_add_and_fetch(&val, 1);
1854 __sync_sub_and_fetch(&val, 1);
1860 AC_MSG_RESULT([yes])
1861 AC_DEFINE([LLVM_HAS_ATOMICS], [1], [Has gcc/MSVC atomic intrinsics])
1865 AC_DEFINE([LLVM_HAS_ATOMICS], [0], [Has gcc/MSVC atomic intrinsics])
1866 AC_MSG_WARN([LLVM will be built thread-unsafe because atomic builtins are missing])
1870 dnl===-----------------------------------------------------------------------===
1872 dnl=== SECTION 9: Additional checks, variables, etc.
1874 dnl===-----------------------------------------------------------------------===
1876 dnl Handle 32-bit linux systems running a 64-bit kernel.
1877 dnl This has to come after section 4 because it invokes the compiler.
1878 if test "$llvm_cv_os_type" = "Linux" -a "$llvm_cv_target_arch" = "x86_64" ; then
1880 if test "$llvm_cv_linux_mixed" = "yes"; then
1881 llvm_cv_target_arch="x86"
1886 dnl Check whether __dso_handle is present
1887 AC_CHECK_FUNCS([__dso_handle])
1889 dnl Propagate the shared library extension that the libltdl checks did to
1890 dnl the Makefiles so we can use it there too
1891 AC_SUBST(SHLIBEXT,$libltdl_cv_shlibext)
1893 dnl Propagate the run-time library path variable that the libltdl
1894 dnl checks found to the Makefiles so we can use it there too
1895 AC_SUBST(SHLIBPATH_VAR,$libltdl_cv_shlibpath_var)
1897 dnl Translate the various configuration directories and other basic
1898 dnl information into substitutions that will end up in Makefile.config.in
1899 dnl that these configured values can be used by the makefiles
1900 if test "${prefix}" = "NONE" ; then
1903 eval LLVM_PREFIX="${prefix}";
1904 eval LLVM_BINDIR="${prefix}/bin";
1905 eval LLVM_DATADIR="${prefix}/share/llvm";
1906 eval LLVM_DOCSDIR="${prefix}/share/doc/llvm";
1907 eval LLVM_ETCDIR="${prefix}/etc/llvm";
1908 eval LLVM_INCLUDEDIR="${prefix}/include";
1909 eval LLVM_INFODIR="${prefix}/info";
1910 eval LLVM_MANDIR="${prefix}/man";
1911 LLVM_CONFIGTIME=`date`
1912 AC_SUBST(LLVM_PREFIX)
1913 AC_SUBST(LLVM_BINDIR)
1914 AC_SUBST(LLVM_DATADIR)
1915 AC_SUBST(LLVM_DOCSDIR)
1916 AC_SUBST(LLVM_ETCDIR)
1917 AC_SUBST(LLVM_INCLUDEDIR)
1918 AC_SUBST(LLVM_INFODIR)
1919 AC_SUBST(LLVM_MANDIR)
1920 AC_SUBST(LLVM_CONFIGTIME)
1922 dnl Disable embedding timestamps in the build directory, with ENABLE_TIMESTAMPS.
1923 if test "${ENABLE_TIMESTAMPS}" = "0"; then
1924 LLVM_CONFIGTIME="(timestamp not enabled)"
1927 dnl Place the various directories into the config.h file as #defines so that we
1928 dnl can know about the installation paths within LLVM.
1929 AC_DEFINE_UNQUOTED(LLVM_PREFIX,"$LLVM_PREFIX",
1930 [Installation prefix directory])
1931 AC_DEFINE_UNQUOTED(LLVM_BINDIR, "$LLVM_BINDIR",
1932 [Installation directory for binary executables])
1933 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DATADIR",
1934 [Installation directory for data files])
1935 AC_DEFINE_UNQUOTED(LLVM_DOCSDIR, "$LLVM_DOCSDIR",
1936 [Installation directory for documentation])
1937 AC_DEFINE_UNQUOTED(LLVM_ETCDIR, "$LLVM_ETCDIR",
1938 [Installation directory for config files])
1939 AC_DEFINE_UNQUOTED(LLVM_INCLUDEDIR, "$LLVM_INCLUDEDIR",
1940 [Installation directory for include files])
1941 AC_DEFINE_UNQUOTED(LLVM_INFODIR, "$LLVM_INFODIR",
1942 [Installation directory for .info files])
1943 AC_DEFINE_UNQUOTED(LLVM_MANDIR, "$LLVM_MANDIR",
1944 [Installation directory for man pages])
1945 AC_DEFINE_UNQUOTED(LLVM_CONFIGTIME, "$LLVM_CONFIGTIME",
1946 [Time at which LLVM was configured])
1947 AC_DEFINE_UNQUOTED(LLVM_HOST_TRIPLE, "$host",
1948 [Host triple LLVM will be executed on])
1949 AC_DEFINE_UNQUOTED(LLVM_DEFAULT_TARGET_TRIPLE, "$target",
1950 [Target triple LLVM will generate code for by default])
1952 dnl Determine which bindings to build.
1953 if test "$BINDINGS_TO_BUILD" = auto ; then
1954 BINDINGS_TO_BUILD=""
1955 if test "x$OCAMLC" != x -a "x$OCAMLDEP" != x ; then
1956 BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD"
1959 AC_SUBST(BINDINGS_TO_BUILD,$BINDINGS_TO_BUILD)
1961 dnl This isn't really configurey, but it avoids having to repeat the list in
1963 AC_SUBST(ALL_BINDINGS,ocaml)
1965 dnl Do any work necessary to ensure that bindings have what they need.
1966 binding_prereqs_failed=0
1967 for a_binding in $BINDINGS_TO_BUILD ; do
1968 case "$a_binding" in
1970 if test "x$OCAMLC" = x ; then
1971 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlc not found. Try configure OCAMLC=/path/to/ocamlc])
1972 binding_prereqs_failed=1
1974 if test "x$OCAMLDEP" = x ; then
1975 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamldep not found. Try configure OCAMLDEP=/path/to/ocamldep])
1976 binding_prereqs_failed=1
1978 if test "x$OCAMLOPT" = x ; then
1979 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlopt not found. Try configure OCAMLOPT=/path/to/ocamlopt])
1980 dnl ocamlopt is optional!
1982 if test "x$with_ocaml_libdir" != xauto ; then
1983 AC_SUBST(OCAML_LIBDIR,$with_ocaml_libdir)
1985 ocaml_stdlib="`"$OCAMLC" -where`"
1986 if test "$LLVM_PREFIX" '<' "$ocaml_stdlib" -a "$ocaml_stdlib" '<' "$LLVM_PREFIX~"
1988 # ocaml stdlib is beneath our prefix; use stdlib
1989 AC_SUBST(OCAML_LIBDIR,$ocaml_stdlib)
1991 # ocaml stdlib is outside our prefix; use libdir/ocaml
1992 AC_SUBST(OCAML_LIBDIR,${prefix}/lib/ocaml)
1998 if test "$binding_prereqs_failed" = 1 ; then
1999 AC_MSG_ERROR([Prequisites for bindings not satisfied. Fix them or use configure --disable-bindings.])
2002 dnl Determine whether the compiler supports -fvisibility-inlines-hidden.
2003 AC_CXX_USE_VISIBILITY_INLINES_HIDDEN
2005 dnl Determine linker rpath flag
2006 if test "$llvm_cv_link_use_r" = "yes" ; then
2013 dnl Determine linker rdynamic flag
2014 if test "$llvm_cv_link_use_export_dynamic" = "yes" ; then
2015 RDYNAMIC="-rdynamic"
2021 dnl===-----------------------------------------------------------------------===
2023 dnl=== SECTION 10: Specify the output files and generate it
2025 dnl===-----------------------------------------------------------------------===
2027 dnl Configure header files
2028 dnl WARNING: dnl If you add or remove any of the following config headers, then
2029 dnl you MUST also update Makefile so that the variable FilesToConfig
2030 dnl contains the same list of files as AC_CONFIG_HEADERS below. This ensures the
2031 dnl files can be updated automatically when their *.in sources change.
2032 AC_CONFIG_HEADERS([include/llvm/Config/config.h include/llvm/Config/llvm-config.h])
2033 AH_TOP([#ifndef CONFIG_H
2037 AC_CONFIG_FILES([include/llvm/Config/Targets.def])
2038 AC_CONFIG_FILES([include/llvm/Config/AsmPrinters.def])
2039 AC_CONFIG_FILES([include/llvm/Config/AsmParsers.def])
2040 AC_CONFIG_FILES([include/llvm/Config/Disassemblers.def])
2041 AC_CONFIG_HEADERS([include/llvm/Support/DataTypes.h])
2043 dnl Configure the makefile's configuration data
2044 AC_CONFIG_FILES([Makefile.config])
2046 dnl Configure the RPM spec file for LLVM
2047 AC_CONFIG_FILES([llvm.spec])
2049 dnl Configure doxygen's configuration file
2050 AC_CONFIG_FILES([docs/doxygen.cfg])
2052 dnl Configure clang, if present
2053 if test "${clang_src_root}" = ""; then
2054 clang_src_root="$srcdir/tools/clang"
2056 if test -f ${clang_src_root}/README.txt; then
2057 dnl Use variables to stay under 80 columns.
2058 configh="include/clang/Config/config.h"
2059 doxy="docs/doxygen.cfg"
2060 AC_CONFIG_HEADERS([tools/clang/${configh}:${clang_src_root}/${configh}.in])
2061 AC_CONFIG_FILES([tools/clang/${doxy}:${clang_src_root}/${doxy}.in])
2064 dnl OCaml findlib META file
2065 AC_CONFIG_FILES([bindings/ocaml/llvm/META.llvm])
2067 dnl Add --program-prefix value to Makefile.rules. Already an ARG variable.
2068 test "x$program_prefix" = "xNONE" && program_prefix=""
2069 AC_SUBST([program_prefix])
2072 dnl Do special configuration of Makefiles
2073 AC_CONFIG_COMMANDS([setup],,[llvm_src="${srcdir}"])
2074 AC_CONFIG_MAKEFILE(Makefile)
2075 AC_CONFIG_MAKEFILE(Makefile.common)
2076 AC_CONFIG_MAKEFILE(examples/Makefile)
2077 AC_CONFIG_MAKEFILE(lib/Makefile)
2078 AC_CONFIG_MAKEFILE(test/Makefile)
2079 AC_CONFIG_MAKEFILE(test/Makefile.tests)
2080 AC_CONFIG_MAKEFILE(unittests/Makefile)
2081 AC_CONFIG_MAKEFILE(tools/Makefile)
2082 AC_CONFIG_MAKEFILE(utils/Makefile)
2083 AC_CONFIG_MAKEFILE(projects/Makefile)
2084 AC_CONFIG_MAKEFILE(bindings/Makefile)
2085 AC_CONFIG_MAKEFILE(bindings/ocaml/Makefile.ocaml)
2087 dnl Finally, crank out the output