1 dnl === configure.ac --------------------------------------------------------===
2 dnl The LLVM Compiler Infrastructure
4 dnl This file is distributed under the University of Illinois Open Source
5 dnl License. See LICENSE.TXT for details.
7 dnl===-----------------------------------------------------------------------===
8 dnl This is the LLVM configuration script. It is processed by the autoconf
9 dnl program to produce a script named configure. This script contains the
10 dnl configuration checks that LLVM needs in order to support multiple platforms.
11 dnl This file is composed of 10 sections per the recommended organization of
12 dnl autoconf input defined in the autoconf documentation. As this file evolves,
13 dnl please keep the various types of checks within their sections. The sections
16 dnl SECTION 1: Initialization & Setup
17 dnl SECTION 2: Architecture, target, and host checks
18 dnl SECTION 3: Command line arguments for the configure script.
19 dnl SECTION 4: Check for programs we need and that they are the right version
20 dnl SECTION 5: Check for libraries
21 dnl SECTION 6: Check for header files
22 dnl SECTION 7: Check for types and structures
23 dnl SECTION 8: Check for specific functions needed
24 dnl SECTION 9: Additional checks, variables, etc.
25 dnl SECTION 10: Specify the output files and generate it
27 dnl===-----------------------------------------------------------------------===
29 dnl=== SECTION 1: Initialization & Setup
31 dnl===-----------------------------------------------------------------------===
32 dnl Initialize autoconf and define the package name, version number and
33 dnl address for reporting bugs.
35 AC_INIT([LLVM],[3.7.0svn],[http://llvm.org/bugs/])
40 LLVM_VERSION_SUFFIX=svn
42 AC_DEFINE_UNQUOTED([LLVM_VERSION_MAJOR], $LLVM_VERSION_MAJOR, [Major version of the LLVM API])
43 AC_DEFINE_UNQUOTED([LLVM_VERSION_MINOR], $LLVM_VERSION_MINOR, [Minor version of the LLVM API])
44 AC_DEFINE_UNQUOTED([LLVM_VERSION_PATCH], $LLVM_VERSION_PATCH, [Patch version of the LLVM API])
45 AC_DEFINE_UNQUOTED([LLVM_VERSION_STRING], "$PACKAGE_VERSION", [LLVM version string])
47 AC_SUBST([LLVM_VERSION_MAJOR])
48 AC_SUBST([LLVM_VERSION_MINOR])
49 AC_SUBST([LLVM_VERSION_PATCH])
50 AC_SUBST([LLVM_VERSION_SUFFIX])
52 dnl Provide a copyright substitution and ensure the copyright notice is included
53 dnl in the output of --version option of the generated configure script.
54 AC_SUBST(LLVM_COPYRIGHT,["Copyright (c) 2003-2014 University of Illinois at Urbana-Champaign."])
55 AC_COPYRIGHT([Copyright (c) 2003-2014 University of Illinois at Urbana-Champaign.])
57 dnl Indicate that we require autoconf 2.60 or later.
60 dnl Verify that the source directory is valid. This makes sure that we are
61 dnl configuring LLVM and not some other package (it validates --srcdir argument)
62 AC_CONFIG_SRCDIR([lib/IR/Module.cpp])
64 dnl Place all of the extra autoconf files into the config subdirectory. Tell
65 dnl various tools where the m4 autoconf macros are.
66 AC_CONFIG_AUX_DIR([autoconf])
68 dnl Quit if the source directory has already been configured.
69 dnl NOTE: This relies upon undocumented autoconf behavior.
70 if test ${srcdir} != "." ; then
71 if test -f ${srcdir}/include/llvm/Config/config.h ; then
72 AC_MSG_ERROR([Already configured in ${srcdir}])
76 dnl Default to empty (i.e. assigning the null string to) CFLAGS and CXXFLAGS,
77 dnl instead of the autoconf default (for example, '-g -O2' for CC=gcc).
81 dnl We need to check for the compiler up here to avoid anything else
82 dnl starting with a different one.
84 AC_PROG_CXX(clang++ g++)
87 dnl If CXX is Clang, check that it can find and parse C++ standard library
89 if test "$CXX" = "clang++" ; then
90 AC_MSG_CHECKING([whether clang works])
92 dnl Note that space between 'include' and '(' is required. There's a broken
93 dnl regex in aclocal that otherwise will think that we call m4's include
95 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <limits>
96 #if __has_include (<cxxabi.h>)
99 #if __has_include (<unwind.h>)
108 AC_MSG_ERROR([Selected compiler could not find or parse C++ standard library headers. Rerun with CC=c-compiler CXX=c++-compiler ./configure ...])
113 dnl Set up variables that track whether the host compiler is GCC or Clang where
114 dnl we can effectively sanity check them. We don't try to sanity check all the
115 dnl other possible compilers.
116 AC_MSG_CHECKING([whether GCC or Clang is our host compiler])
118 llvm_cv_cxx_compiler=unknown
119 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[#if ! __clang__
123 llvm_cv_cxx_compiler=clang,
124 [AC_COMPILE_IFELSE([AC_LANG_SOURCE([[#if ! __GNUC__
128 llvm_cv_cxx_compiler=gcc, [])])
130 AC_MSG_RESULT([${llvm_cv_cxx_compiler}])
132 dnl Configure all of the projects present in our source tree. While we could
133 dnl just AC_CONFIG_SUBDIRS on the set of directories in projects that have a
134 dnl configure script, that usage of the AC_CONFIG_SUBDIRS macro is deprecated.
135 dnl Instead we match on the known projects.
138 dnl One tricky part of doing this is that some projects depend upon other
139 dnl projects. For example, several projects rely upon the LLVM test suite.
140 dnl We want to configure those projects first so that their object trees are
141 dnl created before running the configure scripts of projects that depend upon
145 dnl Several projects use the LLVM test suite, so configure it next.
146 if test -d ${srcdir}/projects/test-suite ; then
147 AC_CONFIG_SUBDIRS([projects/test-suite])
150 dnl llvm-test is the old name of the test-suite, kept here for backwards
152 if test -d ${srcdir}/projects/llvm-test ; then
153 AC_CONFIG_SUBDIRS([projects/llvm-test])
156 dnl Some projects use poolalloc; configure that next
157 if test -d ${srcdir}/projects/poolalloc ; then
158 AC_CONFIG_SUBDIRS([projects/poolalloc])
161 if test -d ${srcdir}/projects/llvm-poolalloc ; then
162 AC_CONFIG_SUBDIRS([projects/llvm-poolalloc])
165 dnl Check for all other projects
166 for i in `ls ${srcdir}/projects`
168 if test -d ${srcdir}/projects/${i} ; then
170 safecode) AC_CONFIG_SUBDIRS([projects/safecode]) ;;
177 AC_MSG_WARN([Unknown project (${i}) won't be configured automatically])
183 dnl Disable the build of polly, even if it is checked out into tools/polly.
185 AS_HELP_STRING([--enable-polly],
186 [Use polly if available (default is YES)]),,
189 yes) AC_SUBST(ENABLE_POLLY,[1]) ;;
190 no) AC_SUBST(ENABLE_POLLY,[0]) ;;
191 default) AC_SUBST(ENABLE_POLLY,[1]) ;;
192 *) AC_MSG_ERROR([Invalid setting for --enable-polly. Use "yes" or "no"]) ;;
196 dnl Check if polly is checked out into tools/polly and configure it if
198 if (test -d ${srcdir}/tools/polly) && (test $ENABLE_POLLY -eq 1) ; then
199 AC_SUBST(LLVM_HAS_POLLY,1)
200 AC_CONFIG_SUBDIRS([tools/polly])
203 dnl===-----------------------------------------------------------------------===
205 dnl=== SECTION 2: Architecture, target, and host checks
207 dnl===-----------------------------------------------------------------------===
209 dnl Check the target for which we're compiling and the host that will do the
210 dnl compilations. This will tell us which LLVM compiler will be used for
211 dnl compiling SSA into object code. This needs to be done early because
212 dnl following tests depend on it.
215 dnl Determine the platform type and cache its value. This helps us configure
216 dnl the System library to the correct build platform.
217 AC_CACHE_CHECK([type of operating system we're going to host on],
221 llvm_cv_link_all_option="-Wl,--whole-archive"
222 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
223 llvm_cv_os_type="AIX"
224 llvm_cv_platform_type="Unix" ;;
226 llvm_cv_link_all_option="-Wl,--whole-archive"
227 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
228 llvm_cv_os_type="IRIX"
229 llvm_cv_platform_type="Unix" ;;
231 llvm_cv_link_all_option="-Wl,--whole-archive"
232 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
233 llvm_cv_os_type="Cygwin"
234 llvm_cv_platform_type="Unix" ;;
236 llvm_cv_link_all_option="-Wl,-all_load"
237 llvm_cv_no_link_all_option="-Wl,-noall_load"
238 llvm_cv_os_type="Darwin"
239 llvm_cv_platform_type="Unix" ;;
241 llvm_cv_link_all_option="-Wl,-all_load"
242 llvm_cv_no_link_all_option="-Wl,-noall_load"
243 llvm_cv_os_type="Minix"
244 llvm_cv_platform_type="Unix" ;;
246 llvm_cv_link_all_option="-Wl,--whole-archive"
247 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
248 llvm_cv_os_type="FreeBSD"
249 llvm_cv_platform_type="Unix" ;;
251 llvm_cv_link_all_option="-Wl,--whole-archive"
252 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
253 llvm_cv_os_type="GNU/kFreeBSD"
254 llvm_cv_platform_type="Unix" ;;
256 llvm_cv_link_all_option="-Wl,--whole-archive"
257 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
258 llvm_cv_os_type="OpenBSD"
259 llvm_cv_platform_type="Unix" ;;
261 llvm_cv_link_all_option="-Wl,--whole-archive"
262 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
263 llvm_cv_os_type="NetBSD"
264 llvm_cv_platform_type="Unix" ;;
266 llvm_cv_link_all_option="-Wl,--whole-archive"
267 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
268 llvm_cv_os_type="DragonFly"
269 llvm_cv_platform_type="Unix" ;;
271 llvm_cv_link_all_option="-Wl,--whole-archive"
272 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
273 llvm_cv_os_type="Bitrig"
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="HP-UX"
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="Interix"
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="Linux"
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="GNU"
294 llvm_cv_platform_type="Unix" ;;
296 llvm_cv_link_all_option="-Wl,-z,allextract"
297 llvm_cv_no_link_all_option="-Wl,-z,defaultextract"
298 llvm_cv_os_type="SunOS"
299 llvm_cv_platform_type="Unix" ;;
301 llvm_cv_link_all_option="-Wl,--whole-archive"
302 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
303 llvm_cv_os_type="Win32"
304 llvm_cv_platform_type="Win32" ;;
306 llvm_cv_link_all_option="-Wl,--whole-archive"
307 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
308 llvm_cv_os_type="MingW"
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="Haiku"
314 llvm_cv_platform_type="Unix" ;;
316 llvm_cv_link_all_option="-Wl,--whole-archive"
317 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
318 llvm_cv_os_type="Freestanding"
319 llvm_cv_platform_type="Unix" ;;
321 llvm_cv_link_all_option="-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=""
327 llvm_cv_no_link_all_option=""
328 llvm_cv_os_type="Unknown"
329 llvm_cv_platform_type="Unknown" ;;
332 AC_CACHE_CHECK([type of operating system we're going to target],
333 [llvm_cv_target_os_type],
336 llvm_cv_target_os_type="AIX" ;;
338 llvm_cv_target_os_type="IRIX" ;;
340 llvm_cv_target_os_type="Cygwin" ;;
342 llvm_cv_target_os_type="Darwin" ;;
344 llvm_cv_target_os_type="Minix" ;;
346 llvm_cv_target_os_type="FreeBSD" ;;
348 llvm_cv_target_os_type="GNU/kFreeBSD" ;;
350 llvm_cv_target_os_type="OpenBSD" ;;
352 llvm_cv_target_os_type="NetBSD" ;;
354 llvm_cv_target_os_type="DragonFly" ;;
356 llvm_cv_target_os_type="Bitrig" ;;
358 llvm_cv_target_os_type="HP-UX" ;;
360 llvm_cv_target_os_type="Interix" ;;
362 llvm_cv_target_os_type="Linux" ;;
364 llvm_cv_target_os_type="GNU" ;;
366 llvm_cv_target_os_type="SunOS" ;;
368 llvm_cv_target_os_type="Win32" ;;
370 llvm_cv_target_os_type="MingW" ;;
372 llvm_cv_target_os_type="Haiku" ;;
374 llvm_cv_target_os_type="RTEMS" ;;
376 llvm_cv_target_os_type="NativeClient" ;;
378 llvm_cv_target_os_type="Freestanding" ;;
380 llvm_cv_target_os_type="PS4" ;;
382 llvm_cv_target_os_type="Unknown" ;;
385 dnl Make sure we aren't attempting to configure for an unknown system
386 if test "$llvm_cv_os_type" = "Unknown" ; then
387 AC_MSG_ERROR([Operating system is unknown, configure can't continue])
390 dnl Set the "OS" Makefile variable based on the platform type so the
391 dnl makefile can configure itself to specific build hosts
392 AC_SUBST(OS,$llvm_cv_os_type)
393 AC_SUBST(HOST_OS,$llvm_cv_os_type)
394 AC_SUBST(TARGET_OS,$llvm_cv_target_os_type)
396 dnl Set the LINKALL and NOLINKALL Makefile variables based on the platform
397 AC_SUBST(LINKALL,$llvm_cv_link_all_option)
398 AC_SUBST(NOLINKALL,$llvm_cv_no_link_all_option)
400 dnl Set the "LLVM_ON_*" variables based on llvm_cv_platform_type
401 dnl This is used by lib/Support to determine the basic kind of implementation
403 case $llvm_cv_platform_type in
405 AC_DEFINE([LLVM_ON_UNIX],[1],[Define if this is Unixish platform])
406 AC_SUBST(LLVM_ON_UNIX,[1])
407 AC_SUBST(LLVM_ON_WIN32,[0])
410 AC_DEFINE([LLVM_ON_WIN32],[1],[Define if this is Win32ish platform])
411 AC_SUBST(LLVM_ON_UNIX,[0])
412 AC_SUBST(LLVM_ON_WIN32,[1])
416 dnl Determine what our target architecture is and configure accordingly.
417 dnl This will allow Makefiles to make a distinction between the hardware and
419 AC_CACHE_CHECK([target architecture],[llvm_cv_target_arch],
421 i?86-*) llvm_cv_target_arch="x86" ;;
422 amd64-* | x86_64-*) llvm_cv_target_arch="x86_64" ;;
423 sparc*-*) llvm_cv_target_arch="Sparc" ;;
424 powerpc*-*) llvm_cv_target_arch="PowerPC" ;;
425 arm64*-*) llvm_cv_target_arch="AArch64" ;;
426 arm*-*) llvm_cv_target_arch="ARM" ;;
427 aarch64*-*) llvm_cv_target_arch="AArch64" ;;
428 mips-* | mips64-*) llvm_cv_target_arch="Mips" ;;
429 mipsel-* | mips64el-*) llvm_cv_target_arch="Mips" ;;
430 xcore-*) llvm_cv_target_arch="XCore" ;;
431 msp430-*) llvm_cv_target_arch="MSP430" ;;
432 hexagon-*) llvm_cv_target_arch="Hexagon" ;;
433 nvptx-*) llvm_cv_target_arch="NVPTX" ;;
434 s390x-*) llvm_cv_target_arch="SystemZ" ;;
435 *) llvm_cv_target_arch="Unknown" ;;
438 if test "$llvm_cv_target_arch" = "Unknown" ; then
439 AC_MSG_WARN([Configuring LLVM for an unknown target archicture])
442 dnl Determine the LLVM native architecture for the target
443 case "$llvm_cv_target_arch" in
444 x86) LLVM_NATIVE_ARCH="X86" ;;
445 x86_64) LLVM_NATIVE_ARCH="X86" ;;
446 *) LLVM_NATIVE_ARCH="$llvm_cv_target_arch" ;;
449 dnl Define a substitution, ARCH, for the target architecture
450 AC_SUBST(ARCH,$llvm_cv_target_arch)
451 AC_SUBST(LLVM_NATIVE_ARCH,$LLVM_NATIVE_ARCH)
453 dnl Determine what our host architecture.
454 dnl This will allow MCJIT regress tests runs only for supported
457 i?86-*) host_arch="x86" ;;
458 amd64-* | x86_64-*) host_arch="x86_64" ;;
459 sparc*-*) host_arch="Sparc" ;;
460 powerpc*-*) host_arch="PowerPC" ;;
461 arm64*-*) host_arch="AArch64" ;;
462 arm*-*) host_arch="ARM" ;;
463 aarch64*-*) host_arch="AArch64" ;;
464 mips-* | mips64-*) host_arch="Mips" ;;
465 mipsel-* | mips64el-*) host_arch="Mips" ;;
466 xcore-*) host_arch="XCore" ;;
467 msp430-*) host_arch="MSP430" ;;
468 hexagon-*) host_arch="Hexagon" ;;
469 s390x-*) host_arch="SystemZ" ;;
470 *) host_arch="Unknown" ;;
473 if test "$host_arch" = "Unknown" ; then
474 AC_MSG_WARN([Configuring LLVM for an unknown host archicture])
477 AC_SUBST(HOST_ARCH,$host_arch)
479 dnl Check for build platform executable suffix if we're cross-compiling
480 if test "$cross_compiling" = yes; then
481 AC_SUBST(LLVM_CROSS_COMPILING, [1])
483 ac_build_prefix=${build_alias}-
484 AC_CHECK_PROG(BUILD_CXX, ${ac_build_prefix}g++, ${ac_build_prefix}g++)
485 if test -z "$BUILD_CXX"; then
486 AC_CHECK_PROG(BUILD_CXX, g++, g++)
487 if test -z "$BUILD_CXX"; then
488 AC_CHECK_PROG(BUILD_CXX, c++, c++, , , /usr/ucb/c++)
492 AC_SUBST(LLVM_CROSS_COMPILING, [0])
495 dnl Check to see if there's a .svn or .git directory indicating that this
496 dnl build is being done from a checkout. This sets up several defaults for
497 dnl the command line switches. When we build with a checkout directory,
498 dnl we get a debug with assertions turned on. Without, we assume a source
499 dnl release and we get an optimized build without assertions.
500 dnl See --enable-optimized and --enable-assertions below
501 if test -d ".svn" -o -d "${srcdir}/.svn" -o -d ".git" -o -d "${srcdir}/.git"; then
504 AC_SUBST(CVSBUILD,[[CVSBUILD=1]])
510 dnl===-----------------------------------------------------------------------===
512 dnl=== SECTION 3: Command line arguments for the configure script.
514 dnl===-----------------------------------------------------------------------===
516 dnl --enable-libcpp : check whether or not to use libc++ on the command line
517 AC_ARG_ENABLE(libcpp,
518 AS_HELP_STRING([--enable-libcpp],
519 [Use libc++ if available (default is NO)]),,
522 yes) AC_SUBST(ENABLE_LIBCPP,[1]) ;;
523 no) AC_SUBST(ENABLE_LIBCPP,[0]) ;;
524 default) AC_SUBST(ENABLE_LIBCPP,[0]);;
525 *) AC_MSG_ERROR([Invalid setting for --enable-libcpp. Use "yes" or "no"]) ;;
528 dnl Check both GCC and Clang for sufficiently modern versions. These checks can
529 dnl be bypassed by passing a flag if necessary on a platform. We have to do
530 dnl these checks here so that we have the configuration of the standard C++
531 dnl library finished.
532 AC_ARG_ENABLE(compiler-version-checks,
533 AS_HELP_STRING([--enable-compiler-version-checks],
534 [Check the version of the host compiler (default is YES)]),,
541 case "$llvm_cv_cxx_compiler" in
543 AC_MSG_CHECKING([whether Clang is new enough])
544 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
545 #if __clang_major__ < 3 || (__clang_major__ == 3 && __clang_minor__ < 1)
546 #error This version of Clang is too old to build LLVM
549 [AC_MSG_RESULT([yes])],
552 The selected Clang compiler is not new enough to build LLVM. Please upgrade to
553 Clang 3.1. You may pass --disable-compiler-version-checks to configure to
554 bypass these sanity checks.])])
556 dnl Note that libstdc++4.6 is known broken for C++11 builds. The errors
557 dnl are sometimes deeply confusing though. Here we test for an obvious
558 dnl incomplete feature in 4.6's standard library that was completed in
559 dnl 4.7's. We also have to disable this test if 'ENABLE_LIBCPP' is set
560 dnl because the enable flags don't actually fix CXXFLAGS, they rely on
561 dnl that happening in the Makefile.
562 if test "$ENABLE_LIBCPP" -eq 0 ; then
563 AC_MSG_CHECKING([whether Clang will select a modern C++ standard library])
564 llvm_cv_old_cxxflags="$CXXFLAGS"
565 CXXFLAGS="$CXXFLAGS -std=c++0x"
566 AC_LINK_IFELSE([AC_LANG_SOURCE([[
568 std::atomic<float> x(0.0f);
569 int main() { return (float)x; }
571 [AC_MSG_RESULT([yes])],
574 We detected a missing feature in the standard C++ library that was known to be
575 missing in libstdc++4.6 and implemented in libstdc++4.7. There are numerous
576 C++11 problems with 4.6's library, and we don't support GCCs or libstdc++ older
577 than 4.7. You will need to update your system and ensure Clang uses the newer
580 If this error is incorrect or you need to force things to work, you may pass
581 '--disable-compiler-version-checks' to configure to bypass this test.])])
582 CXXFLAGS="$llvm_cv_old_cxxflags"
586 AC_MSG_CHECKING([whether GCC is new enough])
587 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
588 #if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 7)
589 #error This version of GCC is too old to build LLVM
592 [AC_MSG_RESULT([yes])],
595 The selected GCC C++ compiler is not new enough to build LLVM. Please upgrade
596 to GCC 4.7. You may pass --disable-compiler-version-checks to configure to
597 bypass these sanity checks.])])
605 AC_MSG_ERROR([Invalid setting for --enable-compiler-version-checks. Use "yes" or "no"])
609 dnl --enable-cxx1y : check whether or not to use -std=c++1y on the command line
611 AS_HELP_STRING([--enable-cxx1y],
612 [Use c++1y if available (default is NO)]),,
615 yes) AC_SUBST(ENABLE_CXX1Y,[1]) ;;
616 no) AC_SUBST(ENABLE_CXX1Y,[0]) ;;
617 default) AC_SUBST(ENABLE_CXX1Y,[0]);;
618 *) AC_MSG_ERROR([Invalid setting for --enable-cxx1y. Use "yes" or "no"]) ;;
621 dnl --enable-split-dwarf : check whether or not to use -gsplit-dwarf on the command
623 AC_ARG_ENABLE(split-dwarf,
624 AS_HELP_STRING([--enable-split-dwarf],
625 [Use split-dwarf if available (default is NO)]),,
628 yes) AC_SUBST(ENABLE_SPLIT_DWARF,[1]) ;;
629 no) AC_SUBST(ENABLE_SPLIT_DWARF,[0]) ;;
630 default) AC_SUBST(ENABLE_SPLIT_DWARF,[0]);;
631 *) AC_MSG_ERROR([Invalid setting for --enable-split-dwarf. Use "yes" or "no"]) ;;
634 dnl --enable-clang-arcmt: check whether to enable clang arcmt
636 AC_ARG_ENABLE(clang-arcmt,
637 AS_HELP_STRING([--enable-clang-arcmt],
638 [Enable building of clang ARCMT (default is YES)]),
639 clang_arcmt="$enableval",
642 yes) AC_SUBST(ENABLE_CLANG_ARCMT,[1]) ;;
643 no) AC_SUBST(ENABLE_CLANG_ARCMT,[0]) ;;
644 default) AC_SUBST(ENABLE_CLANG_ARCMT,[1]);;
645 *) AC_MSG_ERROR([Invalid setting for --enable-clang-arcmt. Use "yes" or "no"]) ;;
648 dnl --enable-clang-plugin-support: check whether to enable plugins in clang
649 clang_plugin_support="yes"
650 AC_ARG_ENABLE(clang-plugin-support,
651 AS_HELP_STRING([--enable-clang-plugin-support],
652 [Enable plugin support in clang (default is YES)]),
653 clang_plugin_support="$enableval",
656 yes) AC_SUBST(CLANG_PLUGIN_SUPPORT,[1]) ;;
657 no) AC_SUBST(CLANG_PLUGIN_SUPPORT,[0]) ;;
658 default) AC_SUBST(CLANG_PLUGIN_SUPPORT,[1]);;
659 *) AC_MSG_ERROR([Invalid setting for --enable-clang-plugin-support. Use "yes" or "no"]) ;;
662 dnl --enable-clang-static-analyzer: check whether to enable static-analyzer
663 clang_static_analyzer="yes"
664 AC_ARG_ENABLE(clang-static-analyzer,
665 AS_HELP_STRING([--enable-clang-static-analyzer],
666 [Enable building of clang Static Analyzer (default is YES)]),
667 clang_static_analyzer="$enableval",
670 yes) AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[1]) ;;
672 if test ${clang_arcmt} != "no" ; then
673 AC_MSG_ERROR([Cannot enable clang ARC Migration Tool while disabling static analyzer.])
675 AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[0])
677 default) AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[1]);;
678 *) AC_MSG_ERROR([Invalid setting for --enable-clang-static-analyzer. Use "yes" or "no"]) ;;
681 dnl --enable-optimized : check whether they want to do an optimized build:
682 AC_ARG_ENABLE(optimized, AS_HELP_STRING(
683 --enable-optimized,[Compile with optimizations enabled (default is NO)]),,enableval=$optimize)
684 if test ${enableval} = "no" ; then
685 AC_SUBST(ENABLE_OPTIMIZED,[[]])
687 AC_SUBST(ENABLE_OPTIMIZED,[[ENABLE_OPTIMIZED=1]])
690 dnl --enable-profiling : check whether they want to do a profile build:
691 AC_ARG_ENABLE(profiling, AS_HELP_STRING(
692 --enable-profiling,[Compile with profiling enabled (default is NO)]),,enableval="no")
693 if test ${enableval} = "no" ; then
694 AC_SUBST(ENABLE_PROFILING,[[]])
696 AC_SUBST(ENABLE_PROFILING,[[ENABLE_PROFILING=1]])
699 dnl --enable-assertions : check whether they want to turn on assertions or not:
700 AC_ARG_ENABLE(assertions,AS_HELP_STRING(
701 --enable-assertions,[Compile with assertion checks enabled (default is YES)]),, enableval="yes")
702 if test ${enableval} = "yes" ; then
703 AC_SUBST(DISABLE_ASSERTIONS,[[]])
705 AC_SUBST(DISABLE_ASSERTIONS,[[DISABLE_ASSERTIONS=1]])
708 dnl --enable-werror : check whether we want Werror on by default
709 AC_ARG_ENABLE(werror,AS_HELP_STRING(
710 --enable-werror,[Compile with -Werror enabled (default is NO)]),, enableval="no")
712 yes) AC_SUBST(ENABLE_WERROR,[1]) ;;
713 no) AC_SUBST(ENABLE_WERROR,[0]) ;;
714 default) AC_SUBST(ENABLE_WERROR,[0]);;
715 *) AC_MSG_ERROR([Invalid setting for --enable-werror. Use "yes" or "no"]) ;;
718 dnl --enable-expensive-checks : check whether they want to turn on expensive debug checks:
719 AC_ARG_ENABLE(expensive-checks,AS_HELP_STRING(
720 --enable-expensive-checks,[Compile with expensive debug checks enabled (default is NO)]),, enableval="no")
721 if test ${enableval} = "yes" ; then
722 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[ENABLE_EXPENSIVE_CHECKS=1]])
723 AC_SUBST(EXPENSIVE_CHECKS,[[yes]])
725 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[]])
726 AC_SUBST(EXPENSIVE_CHECKS,[[no]])
729 dnl --enable-debug-runtime : should runtime libraries have debug symbols?
730 AC_ARG_ENABLE(debug-runtime,
731 AS_HELP_STRING(--enable-debug-runtime,[Build runtime libs with debug symbols (default is NO)]),,enableval=no)
732 if test ${enableval} = "no" ; then
733 AC_SUBST(DEBUG_RUNTIME,[[]])
735 AC_SUBST(DEBUG_RUNTIME,[[DEBUG_RUNTIME=1]])
738 dnl --enable-debug-symbols : should even optimized compiler libraries
739 dnl have debug symbols?
740 AC_ARG_ENABLE(debug-symbols,
741 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)
742 if test ${enableval} = "no" ; then
743 AC_SUBST(DEBUG_SYMBOLS,[[]])
745 AC_SUBST(DEBUG_SYMBOLS,[[DEBUG_SYMBOLS=1]])
748 dnl --enable-keep-symbols : do not strip installed executables
749 AC_ARG_ENABLE(keep-symbols,
750 AS_HELP_STRING(--enable-keep-symbols,[Do not strip installed executables)]),,enableval=no)
751 if test ${enableval} = "no" ; then
752 AC_SUBST(KEEP_SYMBOLS,[[]])
754 AC_SUBST(KEEP_SYMBOLS,[[KEEP_SYMBOLS=1]])
757 dnl --enable-jit: check whether they want to enable the jit
759 AS_HELP_STRING(--enable-jit,
760 [Enable Just In Time Compiling (default is YES)]),,
762 if test ${enableval} = "no"
766 case "$llvm_cv_target_arch" in
767 x86) AC_SUBST(TARGET_HAS_JIT,1) ;;
768 Sparc) AC_SUBST(TARGET_HAS_JIT,0) ;;
769 PowerPC) AC_SUBST(TARGET_HAS_JIT,1) ;;
770 x86_64) AC_SUBST(TARGET_HAS_JIT,1) ;;
771 ARM) AC_SUBST(TARGET_HAS_JIT,1) ;;
772 Mips) AC_SUBST(TARGET_HAS_JIT,1) ;;
773 XCore) AC_SUBST(TARGET_HAS_JIT,0) ;;
774 MSP430) AC_SUBST(TARGET_HAS_JIT,0) ;;
775 Hexagon) AC_SUBST(TARGET_HAS_JIT,0) ;;
776 NVPTX) AC_SUBST(TARGET_HAS_JIT,0) ;;
777 SystemZ) AC_SUBST(TARGET_HAS_JIT,1) ;;
778 *) AC_SUBST(TARGET_HAS_JIT,0) ;;
782 TARGETS_WITH_JIT="ARM AArch64 Mips PowerPC SystemZ X86"
783 AC_SUBST(TARGETS_WITH_JIT,$TARGETS_WITH_JIT)
785 dnl Allow enablement of building and installing docs
787 AS_HELP_STRING([--enable-docs],
788 [Build documents (default is YES)]),,
791 yes) AC_SUBST(ENABLE_DOCS,[1]) ;;
792 no) AC_SUBST(ENABLE_DOCS,[0]) ;;
793 default) AC_SUBST(ENABLE_DOCS,[1]) ;;
794 *) AC_MSG_ERROR([Invalid setting for --enable-docs. Use "yes" or "no"]) ;;
797 dnl Allow enablement of doxygen generated documentation
798 AC_ARG_ENABLE(doxygen,
799 AS_HELP_STRING([--enable-doxygen],
800 [Build doxygen documentation (default is NO)]),,
803 yes) AC_SUBST(ENABLE_DOXYGEN,[1]) ;;
804 no) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
805 default) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
806 *) AC_MSG_ERROR([Invalid setting for --enable-doxygen. Use "yes" or "no"]) ;;
809 dnl Allow disablement of threads
810 AC_ARG_ENABLE(threads,
811 AS_HELP_STRING([--enable-threads],
812 [Use threads if available (default is YES)]),,
815 yes) AC_SUBST(LLVM_ENABLE_THREADS,[1]) ;;
816 no) AC_SUBST(LLVM_ENABLE_THREADS,[0]) ;;
817 default) AC_SUBST(LLVM_ENABLE_THREADS,[1]) ;;
818 *) AC_MSG_ERROR([Invalid setting for --enable-threads. Use "yes" or "no"]) ;;
820 AC_DEFINE_UNQUOTED([LLVM_ENABLE_THREADS],$LLVM_ENABLE_THREADS,
821 [Define if threads enabled])
823 dnl Allow disablement of pthread.h
824 AC_ARG_ENABLE(pthreads,
825 AS_HELP_STRING([--enable-pthreads],
826 [Use pthreads if available (default is YES)]),,
829 yes) AC_SUBST(ENABLE_PTHREADS,[1]) ;;
830 no) AC_SUBST(ENABLE_PTHREADS,[0]) ;;
831 default) AC_SUBST(ENABLE_PTHREADS,[1]) ;;
832 *) AC_MSG_ERROR([Invalid setting for --enable-pthreads. Use "yes" or "no"]) ;;
835 dnl Allow disablement of zlib
837 AS_HELP_STRING([--enable-zlib],
838 [Use zlib for compression/decompression if
839 available (default is YES)]),,
842 yes) AC_SUBST(LLVM_ENABLE_ZLIB,[1]) ;;
843 no) AC_SUBST(LLVM_ENABLE_ZLIB,[0]) ;;
844 default) AC_SUBST(LLVM_ENABLE_ZLIB,[1]) ;;
845 *) AC_MSG_ERROR([Invalid setting for --enable-zlib. Use "yes" or "no"]) ;;
847 AC_DEFINE_UNQUOTED([LLVM_ENABLE_ZLIB],$LLVM_ENABLE_ZLIB,
848 [Define if zlib is enabled])
850 dnl Allow building without position independent code
852 AS_HELP_STRING([--enable-pic],
853 [Build LLVM with Position Independent Code (default is YES)]),,
856 yes) AC_SUBST(ENABLE_PIC,[1]) ;;
857 no) AC_SUBST(ENABLE_PIC,[0]) ;;
858 default) AC_SUBST(ENABLE_PIC,[1]) ;;
859 *) AC_MSG_ERROR([Invalid setting for --enable-pic. Use "yes" or "no"]) ;;
861 AC_DEFINE_UNQUOTED([ENABLE_PIC],$ENABLE_PIC,
862 [Define if position independent code is enabled])
864 dnl Allow building a shared library and linking tools against it.
865 AC_ARG_ENABLE(shared,
866 AS_HELP_STRING([--enable-shared],
867 [Build a shared library and link tools against it (default is NO)]),,
870 yes) AC_SUBST(ENABLE_SHARED,[1]) ;;
871 no) AC_SUBST(ENABLE_SHARED,[0]) ;;
872 default) AC_SUBST(ENABLE_SHARED,[0]) ;;
873 *) AC_MSG_ERROR([Invalid setting for --enable-shared. Use "yes" or "no"]) ;;
876 dnl Allow libstdc++ is embedded in LLVM.dll.
877 AC_ARG_ENABLE(embed-stdcxx,
878 AS_HELP_STRING([--enable-embed-stdcxx],
879 [Build a shared library with embedded libstdc++ for Win32 DLL (default is NO)]),,
882 yes) AC_SUBST(ENABLE_EMBED_STDCXX,[1]) ;;
883 no) AC_SUBST(ENABLE_EMBED_STDCXX,[0]) ;;
884 default) AC_SUBST(ENABLE_EMBED_STDCXX,[0]) ;;
885 *) AC_MSG_ERROR([Invalid setting for --enable-embed-stdcxx. Use "yes" or "no"]) ;;
888 dnl Enable embedding timestamp information into build.
889 AC_ARG_ENABLE(timestamps,
890 AS_HELP_STRING([--enable-timestamps],
891 [Enable embedding timestamp information in build (default is YES)]),,
894 yes) AC_SUBST(ENABLE_TIMESTAMPS,[1]) ;;
895 no) AC_SUBST(ENABLE_TIMESTAMPS,[0]) ;;
896 default) AC_SUBST(ENABLE_TIMESTAMPS,[1]) ;;
897 *) AC_MSG_ERROR([Invalid setting for --enable-timestamps. Use "yes" or "no"]) ;;
899 AC_DEFINE_UNQUOTED([ENABLE_TIMESTAMPS],$ENABLE_TIMESTAMPS,
900 [Define if timestamp information (e.g., __DATE__) is allowed])
902 dnl Enable support for showing backtraces.
903 AC_ARG_ENABLE(backtraces, AS_HELP_STRING(
904 [--enable-backtraces],
905 [Enable embedding backtraces on crash (default is YES)]),
906 [case "$enableval" in
907 yes) llvm_cv_enable_backtraces="yes" ;;
908 no) llvm_cv_enable_backtraces="no" ;;
909 *) AC_MSG_ERROR([Invalid setting for --enable-backtraces. Use "yes" or "no"]) ;;
911 llvm_cv_enable_backtraces="yes")
912 if test "$llvm_cv_enable_backtraces" = "yes" ; then
913 AC_DEFINE([ENABLE_BACKTRACES],[1],
914 [Define if you want backtraces on crash])
917 dnl Enable installing platform specific signal handling overrides, for improved
918 dnl CrashRecovery support or interaction with crash reporting software. This
919 dnl support may be inappropriate for some clients embedding LLVM as a library.
920 AC_ARG_ENABLE(crash-overrides, AS_HELP_STRING(
921 [--enable-crash-overrides],
922 [Enable crash handling overrides (default is YES)]),
923 [case "$enableval" in
924 yes) llvm_cv_enable_crash_overrides="yes" ;;
925 no) llvm_cv_enable_crash_overrides="no" ;;
926 *) AC_MSG_ERROR([Invalid setting for --enable-crash-overrides. Use "yes" or "no"]) ;;
928 llvm_cv_enable_crash_overrides="yes")
929 if test "$llvm_cv_enable_crash_overrides" = "yes" ; then
930 AC_DEFINE([ENABLE_CRASH_OVERRIDES],[1],
931 [Define to enable crash handling overrides])
934 dnl List all possible targets
935 ALL_TARGETS="X86 Sparc PowerPC ARM AArch64 Mips XCore MSP430 CppBackend NVPTX Hexagon SystemZ R600"
936 AC_SUBST(ALL_TARGETS,$ALL_TARGETS)
938 dnl Allow specific targets to be specified for building (or not)
940 AC_ARG_ENABLE([targets],AS_HELP_STRING([--enable-targets],
941 [Build specific host targets: all or target1,target2,... Valid targets are:
942 host, x86, x86_64, sparc, powerpc, arm64, arm, aarch64, mips, hexagon,
943 xcore, msp430, nvptx, systemz, r600, and cpp (default=all)]),,
945 if test "$enableval" = host-only ; then
949 all) TARGETS_TO_BUILD="$ALL_TARGETS" ;;
950 *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
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 arm64) TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
958 arm) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
959 mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
960 mipsel) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
961 mips64) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
962 mips64el) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
963 xcore) TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
964 msp430) TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;;
965 cpp) TARGETS_TO_BUILD="CppBackend $TARGETS_TO_BUILD" ;;
966 hexagon) TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;;
967 nvptx) TARGETS_TO_BUILD="NVPTX $TARGETS_TO_BUILD" ;;
968 systemz) TARGETS_TO_BUILD="SystemZ $TARGETS_TO_BUILD" ;;
969 r600) TARGETS_TO_BUILD="R600 $TARGETS_TO_BUILD" ;;
970 host) case "$llvm_cv_target_arch" in
971 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
972 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
973 Sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
974 PowerPC) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
975 AArch64) TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
976 ARM) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
977 Mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
978 XCore) TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
979 MSP430) TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;;
980 Hexagon) TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;;
981 NVPTX) TARGETS_TO_BUILD="NVPTX $TARGETS_TO_BUILD" ;;
982 SystemZ) TARGETS_TO_BUILD="SystemZ $TARGETS_TO_BUILD" ;;
983 *) AC_MSG_ERROR([Can not set target to build]) ;;
985 *) AC_MSG_ERROR([Unrecognized target $a_target]) ;;
991 AC_ARG_ENABLE([experimental-targets],AS_HELP_STRING([--enable-experimental-targets],
992 [Build experimental host targets: disable or target1,target2,...
993 (default=disable)]),,
996 if test ${enableval} != "disable"
998 TARGETS_TO_BUILD="$enableval $TARGETS_TO_BUILD"
1001 AC_SUBST(TARGETS_TO_BUILD,$TARGETS_TO_BUILD)
1003 dnl Determine whether we are building LLVM support for the native architecture.
1004 dnl If so, define LLVM_NATIVE_ARCH to that LLVM target.
1005 for a_target in $TARGETS_TO_BUILD; do
1006 if test "$a_target" = "$LLVM_NATIVE_ARCH"; then
1007 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ARCH, $LLVM_NATIVE_ARCH,
1008 [LLVM architecture name for the native architecture, if available])
1009 LLVM_NATIVE_TARGET="LLVMInitialize${LLVM_NATIVE_ARCH}Target"
1010 LLVM_NATIVE_TARGETINFO="LLVMInitialize${LLVM_NATIVE_ARCH}TargetInfo"
1011 LLVM_NATIVE_TARGETMC="LLVMInitialize${LLVM_NATIVE_ARCH}TargetMC"
1012 LLVM_NATIVE_ASMPRINTER="LLVMInitialize${LLVM_NATIVE_ARCH}AsmPrinter"
1013 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/Makefile ; then
1014 LLVM_NATIVE_ASMPARSER="LLVMInitialize${LLVM_NATIVE_ARCH}AsmParser"
1016 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/Makefile ; then
1017 LLVM_NATIVE_DISASSEMBLER="LLVMInitialize${LLVM_NATIVE_ARCH}Disassembler"
1019 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGET, $LLVM_NATIVE_TARGET,
1020 [LLVM name for the native Target init function, if available])
1021 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGETINFO, $LLVM_NATIVE_TARGETINFO,
1022 [LLVM name for the native TargetInfo init function, if available])
1023 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGETMC, $LLVM_NATIVE_TARGETMC,
1024 [LLVM name for the native target MC init function, if available])
1025 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ASMPRINTER, $LLVM_NATIVE_ASMPRINTER,
1026 [LLVM name for the native AsmPrinter init function, if available])
1027 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/Makefile ; then
1028 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ASMPARSER, $LLVM_NATIVE_ASMPARSER,
1029 [LLVM name for the native AsmParser init function, if available])
1031 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/Makefile ; then
1032 AC_DEFINE_UNQUOTED(LLVM_NATIVE_DISASSEMBLER, $LLVM_NATIVE_DISASSEMBLER,
1033 [LLVM name for the native Disassembler init function, if available])
1038 dnl Build the LLVM_TARGET and LLVM_... macros for Targets.def and the individual
1039 dnl target feature def files.
1040 LLVM_ENUM_TARGETS=""
1041 LLVM_ENUM_ASM_PRINTERS=""
1042 LLVM_ENUM_ASM_PARSERS=""
1043 LLVM_ENUM_DISASSEMBLERS=""
1044 for target_to_build in $TARGETS_TO_BUILD; do
1045 LLVM_ENUM_TARGETS="LLVM_TARGET($target_to_build) $LLVM_ENUM_TARGETS"
1046 if test -f ${srcdir}/lib/Target/${target_to_build}/*AsmPrinter.cpp ; then
1047 LLVM_ENUM_ASM_PRINTERS="LLVM_ASM_PRINTER($target_to_build) $LLVM_ENUM_ASM_PRINTERS";
1049 if test -f ${srcdir}/lib/Target/${target_to_build}/AsmParser/Makefile ; then
1050 LLVM_ENUM_ASM_PARSERS="LLVM_ASM_PARSER($target_to_build) $LLVM_ENUM_ASM_PARSERS";
1052 if test -f ${srcdir}/lib/Target/${target_to_build}/Disassembler/Makefile ; then
1053 LLVM_ENUM_DISASSEMBLERS="LLVM_DISASSEMBLER($target_to_build) $LLVM_ENUM_DISASSEMBLERS";
1056 AC_SUBST(LLVM_ENUM_TARGETS)
1057 AC_SUBST(LLVM_ENUM_ASM_PRINTERS)
1058 AC_SUBST(LLVM_ENUM_ASM_PARSERS)
1059 AC_SUBST(LLVM_ENUM_DISASSEMBLERS)
1061 dnl Override the option to use for optimized builds.
1062 AC_ARG_WITH(optimize-option,
1063 AS_HELP_STRING([--with-optimize-option],
1064 [Select the compiler options to use for optimized builds]),,
1066 AC_MSG_CHECKING([optimization flags])
1069 case "$llvm_cv_os_type" in
1070 FreeBSD) optimize_option=-O2 ;;
1071 MingW) optimize_option=-O2 ;;
1072 *) optimize_option=-O3 ;;
1074 *) optimize_option="$withval" ;;
1076 AC_SUBST(OPTIMIZE_OPTION,$optimize_option)
1077 AC_MSG_RESULT([$optimize_option])
1079 dnl Specify extra build options
1080 AC_ARG_WITH(extra-options,
1081 AS_HELP_STRING([--with-extra-options],
1082 [Specify additional options to compile LLVM with]),,
1085 default) EXTRA_OPTIONS= ;;
1086 *) EXTRA_OPTIONS=$withval ;;
1088 AC_SUBST(EXTRA_OPTIONS,$EXTRA_OPTIONS)
1090 dnl Specify extra linker build options
1091 AC_ARG_WITH(extra-ld-options,
1092 AS_HELP_STRING([--with-extra-ld-options],
1093 [Specify additional options to link LLVM with]),,
1096 default) EXTRA_LD_OPTIONS= ;;
1097 *) EXTRA_LD_OPTIONS=$withval ;;
1099 AC_SUBST(EXTRA_LD_OPTIONS,$EXTRA_LD_OPTIONS)
1101 dnl Allow specific bindings to be specified for building (or not)
1102 AC_ARG_ENABLE([bindings],AS_HELP_STRING([--enable-bindings],
1103 [Build specific language bindings: all,auto,none,{binding-name} (default=auto)]),,
1105 BINDINGS_TO_BUILD=""
1106 case "$enableval" in
1107 yes | default | auto) BINDINGS_TO_BUILD="auto" ;;
1108 all ) BINDINGS_TO_BUILD="ocaml" ;;
1109 none | no) BINDINGS_TO_BUILD="" ;;
1110 *)for a_binding in `echo $enableval|sed -e 's/,/ /g' ` ; do
1111 case "$a_binding" in
1112 ocaml) BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD" ;;
1113 *) AC_MSG_ERROR([Unrecognized binding $a_binding]) ;;
1119 dnl Allow the ocaml libdir to be overridden. This could go in a configure
1120 dnl script for bindings/ocaml/configure, except that its auto value depends on
1121 dnl OCAMLC, which is found here to support tests.
1122 AC_ARG_WITH([ocaml-libdir],
1123 [AS_HELP_STRING([--with-ocaml-libdir],
1124 [Specify install location for ocaml bindings (default is stdlib)])],
1128 auto) with_ocaml_libdir="$withval" ;;
1129 /* | [[A-Za-z]]:[[\\/]]*) with_ocaml_libdir="$withval" ;;
1130 *) AC_MSG_ERROR([Invalid path for --with-ocaml-libdir. Provide full path]) ;;
1133 AC_ARG_WITH(clang-srcdir,
1134 AS_HELP_STRING([--with-clang-srcdir],
1135 [Directory to the out-of-tree Clang source]),,
1138 -) clang_src_root="" ;;
1139 /* | [[A-Za-z]]:[[\\/]]*) clang_src_root="$withval" ;;
1140 *) clang_src_root="$ac_pwd/$withval" ;;
1142 AC_SUBST(CLANG_SRC_ROOT,[$clang_src_root])
1144 AC_ARG_WITH(clang-resource-dir,
1145 AS_HELP_STRING([--with-clang-resource-dir],
1146 [Relative directory from the Clang binary for resource files]),,
1148 AC_DEFINE_UNQUOTED(CLANG_RESOURCE_DIR,"$withval",
1149 [Relative directory for resource files])
1151 AC_ARG_WITH(c-include-dirs,
1152 AS_HELP_STRING([--with-c-include-dirs],
1153 [Colon separated list of directories clang will search for headers]),,
1155 AC_DEFINE_UNQUOTED(C_INCLUDE_DIRS,"$withval",
1156 [Directories clang will search for headers])
1158 # Clang normally uses the system c++ headers and libraries. With this option,
1159 # clang will use the ones provided by a gcc installation instead. This option should
1160 # be passed the same value that was used with --prefix when configuring gcc.
1161 AC_ARG_WITH(gcc-toolchain,
1162 AS_HELP_STRING([--with-gcc-toolchain],
1163 [Directory where gcc is installed.]),,
1165 AC_DEFINE_UNQUOTED(GCC_INSTALL_PREFIX,"$withval",
1166 [Directory where gcc is installed.])
1168 AC_ARG_WITH(default-sysroot,
1169 AS_HELP_STRING([--with-default-sysroot],
1170 [Add --sysroot=<path> to all compiler invocations.]),,
1172 AC_DEFINE_UNQUOTED(DEFAULT_SYSROOT,"$withval",
1173 [Default <path> to all compiler invocations for --sysroot=<path>.])
1175 dnl Allow linking of LLVM with GPLv3 binutils code.
1176 AC_ARG_WITH(binutils-include,
1177 AS_HELP_STRING([--with-binutils-include],
1178 [Specify path to binutils/include/ containing plugin-api.h file for gold plugin.]),,
1181 default) WITH_BINUTILS_INCDIR=default ;;
1182 /* | [[A-Za-z]]:[[\\/]]*) WITH_BINUTILS_INCDIR=$withval ;;
1183 *) AC_MSG_ERROR([Invalid path for --with-binutils-include. Provide full path]) ;;
1185 if test "x$WITH_BINUTILS_INCDIR" != xdefault ; then
1186 AC_SUBST(BINUTILS_INCDIR,$WITH_BINUTILS_INCDIR)
1187 if test ! -f "$WITH_BINUTILS_INCDIR/plugin-api.h"; then
1188 echo "$WITH_BINUTILS_INCDIR/plugin-api.h"
1189 AC_MSG_ERROR([Invalid path to directory containing plugin-api.h.]);
1193 dnl Specify the URL where bug reports should be submitted.
1194 AC_ARG_WITH(bug-report-url,
1195 AS_HELP_STRING([--with-bug-report-url],
1196 [Specify the URL where bug reports should be submitted (default=http://llvm.org/bugs/)]),,
1197 withval="http://llvm.org/bugs/")
1198 AC_DEFINE_UNQUOTED(BUG_REPORT_URL,"$withval",
1201 dnl --enable-terminfo: check whether the user wants to control use of terminfo:
1202 AC_ARG_ENABLE(terminfo,AS_HELP_STRING(
1203 [--enable-terminfo],
1204 [Query the terminfo database if available (default is YES)]),
1205 [case "$enableval" in
1206 yes) llvm_cv_enable_terminfo="yes" ;;
1207 no) llvm_cv_enable_terminfo="no" ;;
1208 *) AC_MSG_ERROR([Invalid setting for --enable-terminfo. Use "yes" or "no"]) ;;
1210 llvm_cv_enable_terminfo="yes")
1211 case "$llvm_cv_enable_terminfo" in
1212 yes) AC_SUBST(ENABLE_TERMINFO,[1]) ;;
1213 no) AC_SUBST(ENABLE_TERMINFO,[0]) ;;
1216 dnl --enable-libedit: check whether the user wants to turn off libedit.
1217 AC_ARG_ENABLE(libedit,AS_HELP_STRING(
1219 [Use libedit if available (default is YES)]),
1220 [case "$enableval" in
1221 yes) llvm_cv_enable_libedit="yes" ;;
1222 no) llvm_cv_enable_libedit="no" ;;
1223 *) AC_MSG_ERROR([Invalid setting for --enable-libedit. Use "yes" or "no"]) ;;
1225 llvm_cv_enable_libedit="yes")
1227 dnl --enable-libffi : check whether the user wants to turn off libffi:
1228 AC_ARG_ENABLE(libffi,AS_HELP_STRING(
1229 --enable-libffi,[Check for the presence of libffi (default is NO)]),
1230 [case "$enableval" in
1231 yes) llvm_cv_enable_libffi="yes" ;;
1232 no) llvm_cv_enable_libffi="no" ;;
1233 *) AC_MSG_ERROR([Invalid setting for --enable-libffi. Use "yes" or "no"]) ;;
1235 llvm_cv_enable_libffi=no)
1237 AC_ARG_WITH(internal-prefix,
1238 AS_HELP_STRING([--with-internal-prefix],
1239 [Installation directory for internal files]),,
1241 AC_SUBST(INTERNAL_PREFIX,[$withval])
1243 dnl===-----------------------------------------------------------------------===
1245 dnl=== SECTION 4: Check for programs we need and that they are the right version
1247 dnl===-----------------------------------------------------------------------===
1249 dnl Check for the tools that the makefiles require
1252 AC_PATH_PROG(NM, [nm], [nm])
1253 AC_PATH_PROG(CMP, [cmp], [cmp])
1254 AC_PATH_PROG(CP, [cp], [cp])
1255 AC_PATH_PROG(DATE, [date], [date])
1256 AC_PATH_PROG(FIND, [find], [find])
1257 AC_PATH_PROG(GREP, [grep], [grep])
1258 AC_PATH_PROG(MKDIR,[mkdir],[mkdir])
1259 AC_PATH_PROG(MV, [mv], [mv])
1261 AC_CHECK_TOOL(AR, ar, false)
1262 AC_PATH_PROG(RM, [rm], [rm])
1263 AC_PATH_PROG(SED, [sed], [sed])
1264 AC_PATH_PROG(TAR, [tar], [gtar])
1265 AC_PATH_PROG(BINPWD,[pwd], [pwd])
1267 dnl Looking for misc. graph plotting software
1268 AC_PATH_PROG(DOT, [dot], [echo dot])
1269 if test "$DOT" != "echo dot" ; then
1270 AC_DEFINE([HAVE_DOT],[1],[Define if the dot program is available])
1271 dnl If we're targeting for mingw we should emit windows paths, not msys
1272 if test "$llvm_cv_os_type" = "MingW" ; then
1273 DOT=`echo $DOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1275 AC_DEFINE_UNQUOTED([LLVM_PATH_DOT],"$DOT${EXEEXT}",
1276 [Define to path to dot program if found or 'echo dot' otherwise])
1279 dnl Find the install program
1281 dnl Prepend src dir to install path dir if it's a relative path
1282 dnl This is a hack for installs that take place in something other
1283 dnl than the top level.
1285 [[\\/$]]* | ?:[[\\/]]* ) ;;
1286 *) INSTALL="\\\$(TOPSRCDIR)/$INSTALL" ;;
1289 dnl Checks for documentation and testing tools that we can do without. If these
1290 dnl are not found then they are set to "true" which always succeeds but does
1291 dnl nothing. This just lets the build output show that we could have done
1292 dnl something if the tool was available.
1293 AC_PATH_PROG(BZIP2, [bzip2])
1294 AC_PATH_PROG(CAT, [cat])
1295 AC_PATH_PROG(DOXYGEN, [doxygen])
1296 AC_PATH_PROG(GROFF, [groff])
1297 AC_PATH_PROG(GZIPBIN, [gzip])
1298 AC_PATH_PROG(PDFROFF, [pdfroff])
1299 AC_PATH_PROG(ZIP, [zip])
1300 AC_PATH_PROG(GO, [go])
1301 AC_PATH_PROGS(OCAMLFIND, [ocamlfind])
1302 AC_PATH_PROGS(GAS, [gas as])
1304 dnl Get the version of the linker in use.
1307 dnl Determine whether the linker supports the -R option.
1310 dnl Determine whether the compiler supports the -rdynamic option.
1311 AC_LINK_EXPORT_DYNAMIC
1313 dnl Determine whether the linker supports the --version-script option.
1314 AC_LINK_VERSION_SCRIPT
1316 AC_CHECK_HEADERS([errno.h])
1318 case "$llvm_cv_os_type" in
1319 Cygwin|MingW|Win32) llvm_shlib_ext=.dll ;;
1320 Darwin) llvm_shlib_ext=.dylib ;;
1321 *) llvm_shlib_ext=.so ;;
1324 AC_DEFINE_UNQUOTED([LTDL_SHLIB_EXT], ["$llvm_shlib_ext"], [The shared library extension])
1326 AC_MSG_CHECKING([tool compatibility])
1328 dnl Ensure that compilation tools are GCC or a GNU compatible compiler such as
1329 dnl ICC; we use GCC specific options in the makefiles so the compiler needs
1330 dnl to support those options.
1331 dnl "icc" emits gcc signatures
1332 dnl "icc -no-gcc" emits no gcc signature BUT is still compatible
1344 if test "$GCC" != "yes" && test "$ICC" != "yes"
1346 AC_MSG_ERROR([gcc|icc required but not found])
1349 dnl Ensure that compilation tools are compatible with GCC extensions
1350 if test "$GXX" != "yes" && test "$IXX" != "yes"
1352 AC_MSG_ERROR([g++|clang++|icc required but not found])
1355 dnl Verify that GCC is version 3.0 or higher
1356 if test "$GCC" = "yes"
1361 #if !defined(__GNUC__) || __GNUC__ < 3
1362 #error Unsupported GCC version
1366 [], [AC_MSG_ERROR([gcc 3.x required, but you have a lower version])])
1369 dnl Check for GNU Make. We use its extensions, so don't build without it
1370 if test -z "$llvm_cv_gnu_make_command"
1372 AC_MSG_ERROR([GNU Make required but not found])
1375 dnl Tool compatibility is okay if we make it here.
1378 dnl Check optional compiler flags.
1379 AC_MSG_CHECKING([optional compiler flags])
1380 CXX_FLAG_CHECK(NO_VARIADIC_MACROS, [-Wno-variadic-macros])
1381 CXX_FLAG_CHECK(NO_MISSING_FIELD_INITIALIZERS, [-Wno-missing-field-initializers])
1382 CXX_FLAG_CHECK(COVERED_SWITCH_DEFAULT, [-Wcovered-switch-default])
1384 dnl GCC's potential uninitialized use analysis is weak and presents lots of
1385 dnl false positives, so disable it.
1387 NO_MAYBE_UNINITIALIZED=
1388 if test "$GXX" = "yes"
1390 CXX_FLAG_CHECK(NO_MAYBE_UNINITIALIZED, [-Wno-maybe-uninitialized])
1391 dnl gcc 4.7 introduced -Wmaybe-uninitialized to distinguish cases which are
1392 dnl known to be uninitialized from cases which might be uninitialized. We
1393 dnl still want to catch the first kind of errors.
1394 if test -z "$NO_MAYBE_UNINITIALIZED"
1396 CXX_FLAG_CHECK(NO_UNINITIALIZED, [-Wno-uninitialized])
1400 dnl Check for misbehaving -Wcomment (gcc-4.7 has this) and maybe add
1401 dnl -Wno-comment to the flags.
1403 llvm_cv_old_cxxflags="$CXXFLAGS"
1404 CXXFLAGS="$CXXFLAGS -Wcomment -Werror"
1407 AC_LANG_SOURCE([[// Comment \o\
1409 int main() { return 0; }
1413 no_comment=-Wno-comment
1416 AC_SUBST(NO_COMMENT, [$no_comment])
1417 CXXFLAGS="$llvm_cv_old_cxxflags"
1419 AC_MSG_RESULT([$NO_VARIADIC_MACROS $NO_MISSING_FIELD_INITIALIZERS $COVERED_SWITCH_DEFAULT $NO_UNINITIALIZED $NO_MAYBE_UNINITIALIZED $NO_COMMENT])
1421 AC_ARG_WITH([python],
1422 [AS_HELP_STRING([--with-python], [path to python])],
1423 [PYTHON="$withval"])
1425 if test -n "$PYTHON" && test -x "$PYTHON" ; then
1426 AC_MSG_CHECKING([for python])
1427 AC_MSG_RESULT([user defined: $with_python])
1429 if test -n "$PYTHON" ; then
1430 AC_MSG_WARN([specified python ($PYTHON) is not usable, searching path])
1433 AC_PATH_PROG([PYTHON], [python python2 python27],
1434 [AC_MSG_RESULT([not found])
1435 AC_MSG_ERROR([could not find python 2.7 or higher])])
1438 AC_MSG_CHECKING([for python >= 2.7])
1439 ac_python_version=`$PYTHON -V 2>&1 | cut -d' ' -f2`
1440 ac_python_version_major=`echo $ac_python_version | cut -d'.' -f1`
1441 ac_python_version_minor=`echo $ac_python_version | cut -d'.' -f2`
1442 ac_python_version_patch=`echo $ac_python_version | cut -d'.' -f3`
1443 if test "$ac_python_version_major" -gt "2" || \
1444 (test "$ac_python_version_major" -eq "2" && \
1445 test "$ac_python_version_minor" -ge "7") ; then
1446 AC_MSG_RESULT([$PYTHON ($ac_python_version)])
1448 AC_MSG_RESULT([not found])
1449 AC_MSG_FAILURE([found python $ac_python_version ($PYTHON); required >= 2.7])
1452 dnl===-----------------------------------------------------------------------===
1454 dnl=== SECTION 5: Check for libraries
1456 dnl===-----------------------------------------------------------------------===
1459 if test "$llvm_cv_os_type" = "MingW" ; then
1460 AC_CHECK_LIB(imagehlp, main)
1461 AC_CHECK_LIB(psapi, main)
1462 AC_CHECK_LIB(shell32, main)
1465 dnl dlopen() is required for plugin support.
1466 AC_SEARCH_LIBS(dlopen,dl,LLVM_DEFINE_SUBST([HAVE_DLOPEN],[1],
1467 [Define if dlopen() is available on this platform.]),
1468 AC_MSG_WARN([dlopen() not found - disabling plugin support]))
1470 dnl Search for the clock_gettime() function. Note that we rely on the POSIX
1471 dnl macros to detect whether clock_gettime is available, this just finds the
1472 dnl right libraries to link with.
1473 AC_SEARCH_LIBS(clock_gettime,rt)
1475 dnl The curses library is optional; used for querying terminal info
1476 if test "$llvm_cv_enable_terminfo" = "yes" ; then
1477 dnl We need the has_color functionality in curses for it to be useful.
1478 AC_SEARCH_LIBS(setupterm,tinfo terminfo curses ncurses ncursesw,
1479 LLVM_DEFINE_SUBST([HAVE_TERMINFO],[1],
1480 [Define if the setupterm() function is supported this platform.]))
1483 dnl The libedit library is optional; used by lib/LineEditor
1484 if test "$llvm_cv_enable_libedit" = "yes" ; then
1485 AC_SEARCH_LIBS(el_init,edit,
1486 AC_DEFINE([HAVE_LIBEDIT],[1],
1487 [Define if libedit is available on this platform.]))
1490 dnl libffi is optional; used to call external functions from the interpreter
1491 if test "$llvm_cv_enable_libffi" = "yes" ; then
1492 AC_SEARCH_LIBS(ffi_call,ffi,AC_DEFINE([HAVE_FFI_CALL],[1],
1493 [Define if libffi is available on this platform.]),
1494 AC_MSG_ERROR([libffi not found - configure without --enable-libffi to compile without it]))
1497 dnl mallinfo is optional; the code can compile (minus features) without it
1498 AC_SEARCH_LIBS(mallinfo,malloc,AC_DEFINE([HAVE_MALLINFO],[1],
1499 [Define if mallinfo() is available on this platform.]))
1501 dnl pthread locking functions are optional - but llvm will not be thread-safe
1503 if test "$LLVM_ENABLE_THREADS" -eq 1 && test "$ENABLE_PTHREADS" -eq 1 ; then
1504 AC_CHECK_LIB(pthread, pthread_mutex_init)
1505 AC_SEARCH_LIBS(pthread_mutex_lock,pthread,
1506 AC_DEFINE([HAVE_PTHREAD_MUTEX_LOCK],[1],
1507 [Have pthread_mutex_lock]))
1508 AC_SEARCH_LIBS(pthread_rwlock_init,pthread,
1509 AC_DEFINE([HAVE_PTHREAD_RWLOCK_INIT],[1],
1510 [Have pthread_rwlock_init]))
1511 AC_SEARCH_LIBS(pthread_getspecific,pthread,
1512 AC_DEFINE([HAVE_PTHREAD_GETSPECIFIC],[1],
1513 [Have pthread_getspecific]))
1516 dnl zlib is optional; used for compression/uncompression
1517 if test "$LLVM_ENABLE_ZLIB" -eq 1 ; then
1518 AC_CHECK_LIB(z, compress2)
1521 dnl Allow OProfile support for JIT output.
1522 AC_ARG_WITH(oprofile,
1523 AS_HELP_STRING([--with-oprofile=<prefix>],
1524 [Tell OProfile >= 0.9.4 how to symbolize JIT output]),
1526 AC_SUBST(USE_OPROFILE, [1])
1528 /usr|yes) llvm_cv_oppath=/usr/lib/oprofile ;;
1530 AC_SUBST(USE_OPROFILE, [0]) ;;
1531 *) llvm_cv_oppath="${withval}/lib/oprofile"
1532 CPPFLAGS="-I${withval}/include";;
1534 case $llvm_cv_os_type in
1536 if test -n "$llvm_cv_oppath" ; then
1537 LIBS="$LIBS -lopagent -L${llvm_cv_oppath} -Wl,-rpath,${llvm_cv_oppath}"
1538 dnl Work around http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=537744:
1539 dnl libbfd is not included properly in libopagent in some Debian
1540 dnl versions. If libbfd isn't found at all, we assume opagent works
1542 AC_SEARCH_LIBS(bfd_init, bfd, [], [])
1543 AC_SEARCH_LIBS(op_open_agent, opagent, [], [
1544 echo "Error! You need to have libopagent around."
1547 AC_CHECK_HEADER([opagent.h], [], [
1548 echo "Error! You need to have opagent.h around."
1553 AC_MSG_ERROR([OProfile support is available on Linux only.]) ;;
1557 AC_SUBST(USE_OPROFILE, [0])
1559 AC_DEFINE_UNQUOTED([LLVM_USE_OPROFILE],$USE_OPROFILE,
1560 [Define if we have the oprofile JIT-support library])
1562 dnl Enable support for Intel JIT Events API.
1563 AC_ARG_WITH(intel-jitevents,
1564 AS_HELP_STRING([--with-intel-jitevents Notify Intel JIT profiling API of generated code]),
1567 yes) AC_SUBST(USE_INTEL_JITEVENTS,[1]);;
1568 no) AC_SUBST(USE_INTEL_JITEVENTS,[0]);;
1569 *) AC_MSG_ERROR([Invalid setting for --with-intel-jitevents. Use "yes" or "no"]);;
1572 case $llvm_cv_os_type in
1573 Linux|Win32|Cygwin|MingW) ;;
1574 *) AC_MSG_ERROR([Intel JIT API support is available on Linux and Windows only.]);;
1577 case "$llvm_cv_target_arch" in
1579 *) AC_MSG_ERROR([Target architecture $llvm_cv_target_arch does not support Intel JIT Events API.]);;
1583 AC_SUBST(USE_INTEL_JITEVENTS, [0])
1585 AC_DEFINE_UNQUOTED([LLVM_USE_INTEL_JITEVENTS],$USE_INTEL_JITEVENTS,
1586 [Define if we have the Intel JIT API runtime support library])
1588 dnl Check for libxml2
1589 dnl Right now we're just checking for the existence, we could also check for a
1590 dnl particular version via --version on xml2-config
1591 AC_CHECK_PROGS(XML2CONFIG, xml2-config)
1593 AC_MSG_CHECKING(for libxml2 includes)
1594 if test "x$XML2CONFIG" = "x"; then
1595 AC_MSG_RESULT(xml2-config not found)
1597 LIBXML2_INC=`$XML2CONFIG --cflags`
1598 AC_MSG_RESULT($LIBXML2_INC)
1599 AC_CHECK_LIB(xml2, xmlReadFile,[AC_DEFINE([CLANG_HAVE_LIBXML],1,[Define if we have libxml2])
1600 LIBXML2_LIBS="-lxml2"])
1602 AC_SUBST(LIBXML2_LIBS)
1603 AC_SUBST(LIBXML2_INC)
1605 dnl===-----------------------------------------------------------------------===
1607 dnl=== SECTION 6: Check for header files
1609 dnl===-----------------------------------------------------------------------===
1611 dnl First, use autoconf provided macros for specific headers that we need
1612 dnl We don't check for ancient stuff or things that are guaranteed to be there
1613 dnl by the C++ standard. We always use the <cfoo> versions of <foo.h> C headers.
1614 dnl Generally we're looking for POSIX headers.
1616 AC_HEADER_MMAP_ANONYMOUS
1622 dnl size_t must be defined before including cxxabi.h on FreeBSD 10.0.
1623 AC_CHECK_HEADERS([cxxabi.h], [], [],
1624 [#include <stddef.h>
1628 AC_CHECK_HEADERS([dlfcn.h execinfo.h fcntl.h inttypes.h link.h])
1629 AC_CHECK_HEADERS([malloc.h setjmp.h signal.h stdint.h termios.h unistd.h])
1630 AC_CHECK_HEADERS([utime.h])
1631 AC_CHECK_HEADERS([sys/mman.h sys/param.h sys/resource.h sys/time.h sys/uio.h])
1632 AC_CHECK_HEADERS([sys/ioctl.h malloc/malloc.h mach/mach.h])
1633 AC_CHECK_HEADERS([valgrind/valgrind.h])
1634 AC_CHECK_HEADERS([fenv.h])
1635 AC_CHECK_DECLS([FE_ALL_EXCEPT, FE_INEXACT], [], [], [[#include <fenv.h>]])
1636 if test "$LLVM_ENABLE_THREADS" -eq 1 && test "$ENABLE_PTHREADS" -eq 1 ; then
1637 AC_CHECK_HEADERS(pthread.h,
1638 AC_SUBST(HAVE_PTHREAD, 1),
1639 AC_SUBST(HAVE_PTHREAD, 0))
1641 AC_SUBST(HAVE_PTHREAD, 0)
1643 if test "$LLVM_ENABLE_ZLIB" -eq 1 ; then
1644 AC_CHECK_HEADERS(zlib.h,
1645 AC_SUBST(HAVE_LIBZ, 1),
1646 AC_SUBST(HAVE_LIBZ, 0))
1648 AC_SUBST(HAVE_LIBZ, 0)
1651 dnl Try to find ffi.h.
1652 if test "$llvm_cv_enable_libffi" = "yes" ; then
1653 AC_CHECK_HEADERS([ffi.h ffi/ffi.h])
1656 dnl Try to find Darwin specific crash reporting libraries.
1657 AC_CHECK_HEADERS([CrashReporterClient.h])
1659 dnl Try to find Darwin specific crash reporting global.
1660 AC_MSG_CHECKING([__crashreporter_info__])
1664 extern const char *__crashreporter_info__;
1666 __crashreporter_info__ = "test";
1672 AC_MSG_RESULT([yes])
1673 AC_DEFINE([HAVE_CRASHREPORTER_INFO], [1], [can use __crashreporter_info__])
1677 AC_DEFINE([HAVE_CRASHREPORTER_INFO], [0], [can use __crashreporter_info__])
1680 dnl===-----------------------------------------------------------------------===
1682 dnl=== SECTION 7: Check for types and structures
1684 dnl===-----------------------------------------------------------------------===
1689 AC_DEFINE_UNQUOTED([RETSIGTYPE],[void],[Define as the return type of signal handlers (`int' or `void').])
1691 AC_CHECK_TYPES([int64_t],,AC_MSG_ERROR([Type int64_t required but not found]))
1692 AC_CHECK_TYPES([uint64_t],,
1693 AC_CHECK_TYPES([u_int64_t],,
1694 AC_MSG_ERROR([Type uint64_t or u_int64_t required but not found])))
1696 dnl===-----------------------------------------------------------------------===
1698 dnl=== SECTION 8: Check for specific functions needed
1700 dnl===-----------------------------------------------------------------------===
1702 AC_CHECK_FUNCS([backtrace ceilf floorf roundf rintf nearbyintf getcwd ])
1703 AC_CHECK_FUNCS([powf fmodf strtof round ])
1704 AC_CHECK_FUNCS([log log2 log10 exp exp2])
1705 AC_CHECK_FUNCS([getpagesize getrusage getrlimit setrlimit gettimeofday ])
1706 AC_CHECK_FUNCS([isatty mkdtemp mkstemp ])
1707 AC_CHECK_FUNCS([mktemp posix_spawn pread realpath sbrk setrlimit ])
1708 AC_CHECK_FUNCS([strerror strerror_r setenv ])
1709 AC_CHECK_FUNCS([strtoll strtoq sysconf malloc_zone_statistics ])
1710 AC_CHECK_FUNCS([setjmp longjmp sigsetjmp siglongjmp writev])
1711 AC_CHECK_FUNCS([futimes futimens])
1715 dnl Check for arc4random accessible via AC_INCLUDES_DEFAULT.
1716 AC_CHECK_DECLS([arc4random])
1718 dnl Check the declaration "Secure API" on Windows environments.
1719 AC_CHECK_DECLS([strerror_s])
1721 dnl Check symbols in libgcc.a for JIT on Mingw.
1722 if test "$llvm_cv_os_type" = "MingW" ; then
1723 AC_CHECK_LIB(gcc,_alloca,AC_DEFINE([HAVE__ALLOCA],[1],[Have host's _alloca]))
1724 AC_CHECK_LIB(gcc,__alloca,AC_DEFINE([HAVE___ALLOCA],[1],[Have host's __alloca]))
1725 AC_CHECK_LIB(gcc,__chkstk,AC_DEFINE([HAVE___CHKSTK],[1],[Have host's __chkstk]))
1726 AC_CHECK_LIB(gcc,__chkstk_ms,AC_DEFINE([HAVE___CHKSTK_MS],[1],[Have host's __chkstk_ms]))
1727 AC_CHECK_LIB(gcc,___chkstk,AC_DEFINE([HAVE____CHKSTK],[1],[Have host's ___chkstk]))
1728 AC_CHECK_LIB(gcc,___chkstk_ms,AC_DEFINE([HAVE____CHKSTK_MS],[1],[Have host's ___chkstk_ms]))
1730 AC_CHECK_LIB(gcc,__ashldi3,AC_DEFINE([HAVE___ASHLDI3],[1],[Have host's __ashldi3]))
1731 AC_CHECK_LIB(gcc,__ashrdi3,AC_DEFINE([HAVE___ASHRDI3],[1],[Have host's __ashrdi3]))
1732 AC_CHECK_LIB(gcc,__divdi3,AC_DEFINE([HAVE___DIVDI3],[1],[Have host's __divdi3]))
1733 AC_CHECK_LIB(gcc,__fixdfdi,AC_DEFINE([HAVE___FIXDFDI],[1],[Have host's __fixdfdi]))
1734 AC_CHECK_LIB(gcc,__fixsfdi,AC_DEFINE([HAVE___FIXSFDI],[1],[Have host's __fixsfdi]))
1735 AC_CHECK_LIB(gcc,__floatdidf,AC_DEFINE([HAVE___FLOATDIDF],[1],[Have host's __floatdidf]))
1736 AC_CHECK_LIB(gcc,__lshrdi3,AC_DEFINE([HAVE___LSHRDI3],[1],[Have host's __lshrdi3]))
1737 AC_CHECK_LIB(gcc,__moddi3,AC_DEFINE([HAVE___MODDI3],[1],[Have host's __moddi3]))
1738 AC_CHECK_LIB(gcc,__udivdi3,AC_DEFINE([HAVE___UDIVDI3],[1],[Have host's __udivdi3]))
1739 AC_CHECK_LIB(gcc,__umoddi3,AC_DEFINE([HAVE___UMODDI3],[1],[Have host's __umoddi3]))
1741 AC_CHECK_LIB(gcc,__main,AC_DEFINE([HAVE___MAIN],[1],[Have host's __main]))
1742 AC_CHECK_LIB(gcc,__cmpdi2,AC_DEFINE([HAVE___CMPDI2],[1],[Have host's __cmpdi2]))
1745 dnl Check Win32 API EnumerateLoadedModules.
1746 if test "$llvm_cv_os_type" = "MingW" ; then
1747 AC_MSG_CHECKING([whether EnumerateLoadedModules() accepts new decl])
1751 #include <windows.h>
1752 #include <imagehlp.h>
1753 extern void foo(PENUMLOADED_MODULES_CALLBACK);
1754 extern void foo(BOOL(CALLBACK*)(PCSTR,ULONG_PTR,ULONG,PVOID));
1758 AC_MSG_RESULT([yes])
1759 llvm_cv_win32_elmcb_pcstr="PCSTR"
1763 llvm_cv_win32_elmcb_pcstr="PSTR"
1765 AC_DEFINE_UNQUOTED([WIN32_ELMCB_PCSTR],$llvm_cv_win32_elmcb_pcstr,[Type of 1st arg on ELM Callback])
1768 dnl Check for variations in the Standard C++ library and STL. These macros are
1769 dnl provided by LLVM in the autoconf/m4 directory.
1773 dnl Check for mmap support.We also need to know if /dev/zero is required to
1774 dnl be opened for allocating RWX memory.
1775 dnl Make sure we aren't attempting to configure for an unknown system
1776 if test "$llvm_cv_platform_type" = "Unix" ; then
1779 AC_NEED_DEV_ZERO_FOR_MMAP
1781 if test "$ac_cv_func_mmap_fixed_mapped" = "no"
1783 AC_MSG_WARN([mmap() of a fixed address required but not supported])
1785 if test "$ac_cv_func_mmap_file" = "no"
1787 AC_MSG_WARN([mmap() of files required but not found])
1791 dnl atomic builtins are required for threading support.
1792 AC_MSG_CHECKING(for GCC atomic builtins)
1793 dnl Since we'll be using these atomic builtins in C++ files we should test
1794 dnl the C++ compiler.
1800 volatile unsigned long val = 1;
1801 __sync_synchronize();
1802 __sync_val_compare_and_swap(&val, 1, 0);
1803 __sync_add_and_fetch(&val, 1);
1804 __sync_sub_and_fetch(&val, 1);
1810 AC_MSG_RESULT([yes])
1811 AC_DEFINE([LLVM_HAS_ATOMICS], [1], [Has gcc/MSVC atomic intrinsics])
1815 AC_DEFINE([LLVM_HAS_ATOMICS], [0], [Has gcc/MSVC atomic intrinsics])
1816 AC_MSG_WARN([LLVM will be built thread-unsafe because atomic builtins are missing])
1820 dnl===-----------------------------------------------------------------------===
1822 dnl=== SECTION 9: Additional checks, variables, etc.
1824 dnl===-----------------------------------------------------------------------===
1826 dnl Handle 32-bit linux systems running a 64-bit kernel.
1827 dnl This has to come after section 4 because it invokes the compiler.
1828 if test "$llvm_cv_os_type" = "Linux" -a "$llvm_cv_target_arch" = "x86_64" ; then
1830 if test "$llvm_cv_linux_mixed" = "yes"; then
1831 llvm_cv_target_arch="x86"
1836 dnl Check whether __dso_handle is present
1837 AC_CHECK_FUNCS([__dso_handle])
1839 dnl Propagate the shared library extension that the libltdl checks did to
1840 dnl the Makefiles so we can use it there too
1841 AC_SUBST(SHLIBEXT,$llvm_shlib_ext)
1843 dnl Translate the various configuration directories and other basic
1844 dnl information into substitutions that will end up in Makefile.config.in
1845 dnl that these configured values can be used by the makefiles
1846 if test "${prefix}" = "NONE" ; then
1849 eval LLVM_PREFIX="${prefix}";
1850 eval LLVM_BINDIR="${prefix}/bin";
1851 eval LLVM_DATADIR="${prefix}/share/llvm";
1852 eval LLVM_DOCSDIR="${prefix}/share/doc/llvm";
1853 eval LLVM_ETCDIR="${prefix}/etc/llvm";
1854 eval LLVM_INCLUDEDIR="${prefix}/include";
1855 eval LLVM_INFODIR="${prefix}/info";
1856 eval LLVM_MANDIR="${prefix}/man";
1857 LLVM_CONFIGTIME=`date`
1858 AC_SUBST(LLVM_PREFIX)
1859 AC_SUBST(LLVM_BINDIR)
1860 AC_SUBST(LLVM_DATADIR)
1861 AC_SUBST(LLVM_DOCSDIR)
1862 AC_SUBST(LLVM_ETCDIR)
1863 AC_SUBST(LLVM_INCLUDEDIR)
1864 AC_SUBST(LLVM_INFODIR)
1865 AC_SUBST(LLVM_MANDIR)
1866 AC_SUBST(LLVM_CONFIGTIME)
1868 dnl Disable embedding timestamps in the build directory, with ENABLE_TIMESTAMPS.
1869 if test "${ENABLE_TIMESTAMPS}" = "0"; then
1870 LLVM_CONFIGTIME="(timestamp not enabled)"
1873 dnl Place the various directories into the config.h file as #defines so that we
1874 dnl can know about the installation paths within LLVM.
1875 AC_DEFINE_UNQUOTED(LLVM_PREFIX,"$LLVM_PREFIX",
1876 [Installation prefix directory])
1877 AC_DEFINE_UNQUOTED(LLVM_BINDIR, "$LLVM_BINDIR",
1878 [Installation directory for binary executables])
1879 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DATADIR",
1880 [Installation directory for data files])
1881 AC_DEFINE_UNQUOTED(LLVM_DOCSDIR, "$LLVM_DOCSDIR",
1882 [Installation directory for documentation])
1883 AC_DEFINE_UNQUOTED(LLVM_ETCDIR, "$LLVM_ETCDIR",
1884 [Installation directory for config files])
1885 AC_DEFINE_UNQUOTED(LLVM_INCLUDEDIR, "$LLVM_INCLUDEDIR",
1886 [Installation directory for include files])
1887 AC_DEFINE_UNQUOTED(LLVM_INFODIR, "$LLVM_INFODIR",
1888 [Installation directory for .info files])
1889 AC_DEFINE_UNQUOTED(LLVM_MANDIR, "$LLVM_MANDIR",
1890 [Installation directory for man pages])
1891 AC_DEFINE_UNQUOTED(LLVM_CONFIGTIME, "$LLVM_CONFIGTIME",
1892 [Time at which LLVM was configured])
1893 AC_DEFINE_UNQUOTED(LLVM_HOST_TRIPLE, "$host",
1894 [Host triple LLVM will be executed on])
1895 AC_DEFINE_UNQUOTED(LLVM_DEFAULT_TARGET_TRIPLE, "$target",
1896 [Target triple LLVM will generate code for by default])
1898 dnl Determine which bindings to build.
1899 if test "$BINDINGS_TO_BUILD" = auto ; then
1900 BINDINGS_TO_BUILD=""
1901 if test "x$OCAMLFIND" != x ; then
1902 BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD"
1904 if test "x$GO" != x ; then
1905 if $GO run ${srcdir}/bindings/go/conftest.go ; then
1906 BINDINGS_TO_BUILD="go $BINDINGS_TO_BUILD"
1910 AC_SUBST(BINDINGS_TO_BUILD,$BINDINGS_TO_BUILD)
1912 dnl Do any work necessary to ensure that bindings have what they need.
1913 binding_prereqs_failed=0
1914 for a_binding in $BINDINGS_TO_BUILD ; do
1915 case "$a_binding" in
1917 if test "x$OCAMLFIND" = x ; then
1918 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlfind not found. Try configure OCAMLFIND=/path/to/ocamlfind])
1919 binding_prereqs_failed=1
1922 if $OCAMLFIND opt -version >/dev/null 2>/dev/null ; then
1927 AC_SUBST(HAVE_OCAMLOPT)
1929 if ! $OCAMLFIND query ctypes >/dev/null 2>/dev/null; then
1930 AC_MSG_WARN([--enable-bindings=ocaml specified, but ctypes is not installed])
1931 binding_prereqs_failed=1
1934 if $OCAMLFIND query oUnit >/dev/null 2>/dev/null; then
1938 AC_MSG_WARN([--enable-bindings=ocaml specified, but OUnit 2 is not installed. Tests will not run])
1939 dnl oUnit is optional!
1941 AC_SUBST(HAVE_OCAML_OUNIT)
1943 if test "x$with_ocaml_libdir" != xauto ; then
1944 AC_SUBST(OCAML_LIBDIR,$with_ocaml_libdir)
1946 ocaml_stdlib="`"$OCAMLFIND" ocamlc -where`"
1947 if test "$LLVM_PREFIX" '<' "$ocaml_stdlib" -a "$ocaml_stdlib" '<' "$LLVM_PREFIX~"
1949 # ocaml stdlib is beneath our prefix; use stdlib
1950 AC_SUBST(OCAML_LIBDIR,$ocaml_stdlib)
1952 # ocaml stdlib is outside our prefix; use libdir/ocaml
1953 AC_SUBST(OCAML_LIBDIR,${prefix}/lib/ocaml)
1958 if test "x$GO" = x ; then
1959 AC_MSG_WARN([--enable-bindings=go specified, but go not found. Try configure GO=/path/to/go])
1960 binding_prereqs_failed=1
1962 if $GO run ${srcdir}/bindings/go/conftest.go ; then
1965 AC_MSG_WARN([--enable-bindings=go specified, but need at least Go 1.2. Try configure GO=/path/to/go])
1966 binding_prereqs_failed=1
1972 if test "$binding_prereqs_failed" = 1 ; then
1973 AC_MSG_ERROR([Prequisites for bindings not satisfied. Fix them or use configure --disable-bindings.])
1976 dnl Determine whether the compiler supports -fvisibility-inlines-hidden.
1977 AC_CXX_USE_VISIBILITY_INLINES_HIDDEN
1979 dnl Determine linker rpath flag
1980 if test "$llvm_cv_link_use_r" = "yes" ; then
1987 dnl Determine linker rdynamic flag
1988 if test "$llvm_cv_link_use_export_dynamic" = "yes" ; then
1989 RDYNAMIC="-rdynamic"
1995 dnl===-----------------------------------------------------------------------===
1997 dnl=== SECTION 10: Specify the output files and generate it
1999 dnl===-----------------------------------------------------------------------===
2001 dnl Configure header files
2002 dnl WARNING: dnl If you add or remove any of the following config headers, then
2003 dnl you MUST also update Makefile so that the variable FilesToConfig
2004 dnl contains the same list of files as AC_CONFIG_HEADERS below. This ensures the
2005 dnl files can be updated automatically when their *.in sources change.
2006 AC_CONFIG_HEADERS([include/llvm/Config/config.h include/llvm/Config/llvm-config.h])
2007 AH_TOP([#ifndef CONFIG_H
2011 AC_CONFIG_FILES([include/llvm/Config/Targets.def])
2012 AC_CONFIG_FILES([include/llvm/Config/AsmPrinters.def])
2013 AC_CONFIG_FILES([include/llvm/Config/AsmParsers.def])
2014 AC_CONFIG_FILES([include/llvm/Config/Disassemblers.def])
2015 AC_CONFIG_HEADERS([include/llvm/Support/DataTypes.h])
2017 dnl Configure the makefile's configuration data
2018 AC_CONFIG_FILES([Makefile.config])
2020 dnl Configure the RPM spec file for LLVM
2021 AC_CONFIG_FILES([llvm.spec])
2023 dnl Configure doxygen's configuration file
2024 AC_CONFIG_FILES([docs/doxygen.cfg])
2026 dnl Configure clang, if present
2027 if test "${clang_src_root}" = ""; then
2028 clang_src_root="$srcdir/tools/clang"
2030 if test -f ${clang_src_root}/README.txt; then
2031 dnl Clang supports build systems which use the multilib libdir suffix.
2032 dnl The autoconf system doesn't support this so stub out that variable.
2033 AC_DEFINE_UNQUOTED(CLANG_LIBDIR_SUFFIX,"",
2034 [Multilib suffix for libdir.])
2036 dnl Use variables to stay under 80 columns.
2037 configh="include/clang/Config/config.h"
2038 doxy="docs/doxygen.cfg"
2039 AC_CONFIG_HEADERS([tools/clang/${configh}:${clang_src_root}/${configh}.in])
2040 AC_CONFIG_FILES([tools/clang/${doxy}:${clang_src_root}/${doxy}.in])
2043 dnl OCaml findlib META file
2044 AC_CONFIG_FILES([bindings/ocaml/llvm/META.llvm])
2046 dnl Add --program-prefix value to Makefile.rules. Already an ARG variable.
2047 test "x$program_prefix" = "xNONE" && program_prefix=""
2048 AC_SUBST([program_prefix])
2051 dnl Do special configuration of Makefiles
2052 AC_CONFIG_COMMANDS([setup],,[llvm_src="${srcdir}"])
2053 AC_CONFIG_MAKEFILE(Makefile)
2054 AC_CONFIG_MAKEFILE(Makefile.common)
2055 AC_CONFIG_MAKEFILE(examples/Makefile)
2056 AC_CONFIG_MAKEFILE(lib/Makefile)
2057 AC_CONFIG_MAKEFILE(test/Makefile)
2058 AC_CONFIG_MAKEFILE(test/Makefile.tests)
2059 AC_CONFIG_MAKEFILE(unittests/Makefile)
2060 AC_CONFIG_MAKEFILE(tools/Makefile)
2061 AC_CONFIG_MAKEFILE(utils/Makefile)
2062 AC_CONFIG_MAKEFILE(projects/Makefile)
2063 AC_CONFIG_MAKEFILE(bindings/Makefile)
2064 AC_CONFIG_MAKEFILE(bindings/ocaml/Makefile.ocaml)
2066 dnl Finally, crank out the output