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],[3.4svn],[http://llvm.org/bugs/])
35 AC_DEFINE([LLVM_VERSION_MAJOR], [3], [Major version of the LLVM API])
36 AC_DEFINE([LLVM_VERSION_MINOR], [4], [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) 2003-2013 University of Illinois at Urbana-Champaign."])
41 AC_COPYRIGHT([Copyright (c) 2003-2013 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 ${srcdir}])
62 dnl Default to empty (i.e. assigning the null string to) CFLAGS and CXXFLAGS,
63 dnl instead of the autoconf default (for example, '-g -O2' for CC=gcc).
67 dnl We need to check for the compiler up here to avoid anything else
68 dnl starting with a different one.
69 AC_PROG_CC(clang llvm-gcc gcc)
70 AC_PROG_CXX(clang++ llvm-g++ g++)
73 dnl If CXX is Clang, check that it can find and parse C++ standard library
75 if test "$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 Configure all of the projects present in our source tree. While we could
100 dnl just AC_CONFIG_SUBDIRS on the set of directories in projects that have a
101 dnl configure script, that usage of the AC_CONFIG_SUBDIRS macro is deprecated.
102 dnl Instead we match on the known projects.
105 dnl One tricky part of doing this is that some projects depend upon other
106 dnl projects. For example, several projects rely upon the LLVM test suite.
107 dnl We want to configure those projects first so that their object trees are
108 dnl created before running the configure scripts of projects that depend upon
112 dnl Several projects use llvm-gcc, so configure that first
113 if test -d ${srcdir}/projects/llvm-gcc ; then
114 AC_CONFIG_SUBDIRS([projects/llvm-gcc])
117 dnl Several projects use the LLVM test suite, so configure it next.
118 if test -d ${srcdir}/projects/test-suite ; then
119 AC_CONFIG_SUBDIRS([projects/test-suite])
122 dnl llvm-test is the old name of the test-suite, kept here for backwards
124 if test -d ${srcdir}/projects/llvm-test ; then
125 AC_CONFIG_SUBDIRS([projects/llvm-test])
128 dnl Some projects use poolalloc; configure that next
129 if test -d ${srcdir}/projects/poolalloc ; then
130 AC_CONFIG_SUBDIRS([projects/poolalloc])
133 if test -d ${srcdir}/projects/llvm-poolalloc ; then
134 AC_CONFIG_SUBDIRS([projects/llvm-poolalloc])
137 dnl Check for all other projects
138 for i in `ls ${srcdir}/projects`
140 if test -d ${srcdir}/projects/${i} ; then
142 sample) AC_CONFIG_SUBDIRS([projects/sample]) ;;
143 privbracket) AC_CONFIG_SUBDIRS([projects/privbracket]) ;;
144 llvm-stacker) AC_CONFIG_SUBDIRS([projects/llvm-stacker]) ;;
145 llvm-reopt) AC_CONFIG_SUBDIRS([projects/llvm-reopt]);;
146 llvm-java) AC_CONFIG_SUBDIRS([projects/llvm-java]) ;;
147 llvm-tv) AC_CONFIG_SUBDIRS([projects/llvm-tv]) ;;
148 safecode) AC_CONFIG_SUBDIRS([projects/safecode]) ;;
149 llvm-kernel) AC_CONFIG_SUBDIRS([projects/llvm-kernel]) ;;
157 AC_MSG_WARN([Unknown project (${i}) won't be configured automatically])
163 dnl Disable the build of polly, even if it is checked out into tools/polly.
165 AS_HELP_STRING([--enable-polly],
166 [Use polly if available (default is YES)]),,
169 yes) AC_SUBST(ENABLE_POLLY,[1]) ;;
170 no) AC_SUBST(ENABLE_POLLY,[0]) ;;
171 default) AC_SUBST(ENABLE_POLLY,[1]) ;;
172 *) AC_MSG_ERROR([Invalid setting for --enable-polly. Use "yes" or "no"]) ;;
176 dnl Check if polly is checked out into tools/polly and configure it if
178 if (test -d ${srcdir}/tools/polly) && (test $ENABLE_POLLY -eq 1) ; then
179 AC_SUBST(LLVM_HAS_POLLY,1)
180 AC_CONFIG_SUBDIRS([tools/polly])
183 dnl===-----------------------------------------------------------------------===
185 dnl=== SECTION 2: Architecture, target, and host checks
187 dnl===-----------------------------------------------------------------------===
189 dnl Check the target for which we're compiling and the host that will do the
190 dnl compilations. This will tell us which LLVM compiler will be used for
191 dnl compiling SSA into object code. This needs to be done early because
192 dnl following tests depend on it.
195 dnl Determine the platform type and cache its value. This helps us configure
196 dnl the System library to the correct build platform.
197 AC_CACHE_CHECK([type of operating system we're going to host on],
201 llvm_cv_link_all_option="-Wl,--whole-archive"
202 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
203 llvm_cv_os_type="AIX"
204 llvm_cv_platform_type="Unix" ;;
206 llvm_cv_link_all_option="-Wl,--whole-archive"
207 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
208 llvm_cv_os_type="IRIX"
209 llvm_cv_platform_type="Unix" ;;
211 llvm_cv_link_all_option="-Wl,--whole-archive"
212 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
213 llvm_cv_os_type="Cygwin"
214 llvm_cv_platform_type="Unix" ;;
216 llvm_cv_link_all_option="-Wl,-all_load"
217 llvm_cv_no_link_all_option="-Wl,-noall_load"
218 llvm_cv_os_type="Darwin"
219 llvm_cv_platform_type="Unix" ;;
221 llvm_cv_link_all_option="-Wl,-all_load"
222 llvm_cv_no_link_all_option="-Wl,-noall_load"
223 llvm_cv_os_type="Minix"
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="FreeBSD"
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="GNU/kFreeBSD"
234 llvm_cv_platform_type="Unix" ;;
236 llvm_cv_link_all_option="-Wl,--whole-archive"
237 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
238 llvm_cv_os_type="OpenBSD"
239 llvm_cv_platform_type="Unix" ;;
241 llvm_cv_link_all_option="-Wl,--whole-archive"
242 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
243 llvm_cv_os_type="NetBSD"
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="DragonFly"
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="HP-UX"
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="Interix"
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="Linux"
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="GNU"
269 llvm_cv_platform_type="Unix" ;;
271 llvm_cv_link_all_option="-Wl,-z,allextract"
272 llvm_cv_no_link_all_option="-Wl,-z,defaultextract"
273 llvm_cv_os_type="SunOS"
274 llvm_cv_platform_type="Unix" ;;
276 llvm_cv_link_all_option="-Wl,-z,allextract"
277 llvm_cv_link_all_option="-Wl,-z,defaultextract"
278 llvm_cv_os_type="AuroraUX"
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="Win32"
284 llvm_cv_platform_type="Win32" ;;
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="MingW"
289 llvm_cv_platform_type="Win32" ;;
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="Haiku"
294 llvm_cv_platform_type="Unix" ;;
296 llvm_cv_link_all_option="-Wl,--whole-archive"
297 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
298 llvm_cv_os_type="Freestanding"
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="Freestanding"
304 llvm_cv_platform_type="Unix" ;;
306 llvm_cv_link_all_option=""
307 llvm_cv_no_link_all_option=""
308 llvm_cv_os_type="Unknown"
309 llvm_cv_platform_type="Unknown" ;;
312 AC_CACHE_CHECK([type of operating system we're going to target],
313 [llvm_cv_target_os_type],
316 llvm_cv_target_os_type="AIX" ;;
318 llvm_cv_target_os_type="IRIX" ;;
320 llvm_cv_target_os_type="Cygwin" ;;
322 llvm_cv_target_os_type="Darwin" ;;
324 llvm_cv_target_os_type="Minix" ;;
326 llvm_cv_target_os_type="FreeBSD" ;;
328 llvm_cv_target_os_type="GNU/kFreeBSD" ;;
330 llvm_cv_target_os_type="OpenBSD" ;;
332 llvm_cv_target_os_type="NetBSD" ;;
334 llvm_cv_target_os_type="DragonFly" ;;
336 llvm_cv_target_os_type="HP-UX" ;;
338 llvm_cv_target_os_type="Interix" ;;
340 llvm_cv_target_os_type="Linux" ;;
342 llvm_cv_target_os_type="GNU" ;;
344 llvm_cv_target_os_type="SunOS" ;;
346 llvm_cv_target_os_type="AuroraUX" ;;
348 llvm_cv_target_os_type="Win32" ;;
350 llvm_cv_target_os_type="MingW" ;;
352 llvm_cv_target_os_type="Haiku" ;;
354 llvm_cv_target_os_type="RTEMS" ;;
356 llvm_cv_target_os_type="NativeClient" ;;
358 llvm_cv_target_os_type="Freestanding" ;;
360 llvm_cv_target_os_type="Unknown" ;;
363 dnl Make sure we aren't attempting to configure for an unknown system
364 if test "$llvm_cv_os_type" = "Unknown" ; then
365 AC_MSG_ERROR([Operating system is unknown, configure can't continue])
368 dnl Set the "OS" Makefile variable based on the platform type so the
369 dnl makefile can configure itself to specific build hosts
370 AC_SUBST(OS,$llvm_cv_os_type)
371 AC_SUBST(HOST_OS,$llvm_cv_os_type)
372 AC_SUBST(TARGET_OS,$llvm_cv_target_os_type)
374 dnl Set the LINKALL and NOLINKALL Makefile variables based on the platform
375 AC_SUBST(LINKALL,$llvm_cv_link_all_option)
376 AC_SUBST(NOLINKALL,$llvm_cv_no_link_all_option)
378 dnl Set the "LLVM_ON_*" variables based on llvm_cv_platform_type
379 dnl This is used by lib/Support to determine the basic kind of implementation
381 case $llvm_cv_platform_type in
383 AC_DEFINE([LLVM_ON_UNIX],[1],[Define if this is Unixish platform])
384 AC_SUBST(LLVM_ON_UNIX,[1])
385 AC_SUBST(LLVM_ON_WIN32,[0])
388 AC_DEFINE([LLVM_ON_WIN32],[1],[Define if this is Win32ish platform])
389 AC_SUBST(LLVM_ON_UNIX,[0])
390 AC_SUBST(LLVM_ON_WIN32,[1])
394 dnl Determine what our target architecture is and configure accordingly.
395 dnl This will allow Makefiles to make a distinction between the hardware and
397 AC_CACHE_CHECK([target architecture],[llvm_cv_target_arch],
399 i?86-*) llvm_cv_target_arch="x86" ;;
400 amd64-* | x86_64-*) llvm_cv_target_arch="x86_64" ;;
401 sparc*-*) llvm_cv_target_arch="Sparc" ;;
402 powerpc*-*) llvm_cv_target_arch="PowerPC" ;;
403 arm*-*) llvm_cv_target_arch="ARM" ;;
404 aarch64*-*) llvm_cv_target_arch="AArch64" ;;
405 mips-* | mips64-*) llvm_cv_target_arch="Mips" ;;
406 mipsel-* | mips64el-*) llvm_cv_target_arch="Mips" ;;
407 xcore-*) llvm_cv_target_arch="XCore" ;;
408 msp430-*) llvm_cv_target_arch="MSP430" ;;
409 hexagon-*) llvm_cv_target_arch="Hexagon" ;;
410 nvptx-*) llvm_cv_target_arch="NVPTX" ;;
411 s390x-*) llvm_cv_target_arch="SystemZ" ;;
412 *) llvm_cv_target_arch="Unknown" ;;
415 if test "$llvm_cv_target_arch" = "Unknown" ; then
416 AC_MSG_WARN([Configuring LLVM for an unknown target archicture])
419 dnl Determine the LLVM native architecture for the target
420 case "$llvm_cv_target_arch" in
421 x86) LLVM_NATIVE_ARCH="X86" ;;
422 x86_64) LLVM_NATIVE_ARCH="X86" ;;
423 *) LLVM_NATIVE_ARCH="$llvm_cv_target_arch" ;;
426 dnl Define a substitution, ARCH, for the target architecture
427 AC_SUBST(ARCH,$llvm_cv_target_arch)
429 dnl Determine what our host architecture.
430 dnl This will allow MCJIT regress tests runs only for supported
433 i?86-*) host_arch="x86" ;;
434 amd64-* | x86_64-*) host_arch="x86_64" ;;
435 sparc*-*) host_arch="Sparc" ;;
436 powerpc*-*) host_arch="PowerPC" ;;
437 arm*-*) host_arch="ARM" ;;
438 aarch64*-*) host_arch="AArch64" ;;
439 mips-* | mips64-*) host_arch="Mips" ;;
440 mipsel-* | mips64el-*) host_arch="Mips" ;;
441 xcore-*) host_arch="XCore" ;;
442 msp430-*) host_arch="MSP430" ;;
443 hexagon-*) host_arch="Hexagon" ;;
444 s390x-*) host_arch="SystemZ" ;;
445 *) host_arch="Unknown" ;;
448 if test "$host_arch" = "Unknown" ; then
449 AC_MSG_WARN([Configuring LLVM for an unknown host archicture])
452 AC_SUBST(HOST_ARCH,$host_arch)
454 dnl Check for the endianness of the target
455 AC_C_BIGENDIAN(AC_SUBST([ENDIAN],[big]),AC_SUBST([ENDIAN],[little]))
457 dnl Check for build platform executable suffix if we're cross-compiling
458 if test "$cross_compiling" = yes; then
459 AC_SUBST(LLVM_CROSS_COMPILING, [1])
461 ac_build_prefix=${build_alias}-
462 AC_CHECK_PROG(BUILD_CXX, ${ac_build_prefix}g++, ${ac_build_prefix}g++)
463 if test -z "$BUILD_CXX"; then
464 AC_CHECK_PROG(BUILD_CXX, g++, g++)
465 if test -z "$BUILD_CXX"; then
466 AC_CHECK_PROG(BUILD_CXX, c++, c++, , , /usr/ucb/c++)
470 AC_SUBST(LLVM_CROSS_COMPILING, [0])
473 dnl Check to see if there's a .svn or .git directory indicating that this
474 dnl build is being done from a checkout. This sets up several defaults for
475 dnl the command line switches. When we build with a checkout directory,
476 dnl we get a debug with assertions turned on. Without, we assume a source
477 dnl release and we get an optimized build without assertions.
478 dnl See --enable-optimized and --enable-assertions below
479 if test -d ".svn" -o -d "${srcdir}/.svn" -o -d ".git" -o -d "${srcdir}/.git"; then
482 AC_SUBST(CVSBUILD,[[CVSBUILD=1]])
488 dnl===-----------------------------------------------------------------------===
490 dnl=== SECTION 3: Command line arguments for the configure script.
492 dnl===-----------------------------------------------------------------------===
494 dnl --enable-libcpp : check whether or not to use libc++ on the command line
495 AC_ARG_ENABLE(libcpp,
496 AS_HELP_STRING([--enable-libcpp],
497 [Use libc++ if available (default is NO)]),,
500 yes) AC_SUBST(ENABLE_LIBCPP,[1]) ;;
501 no) AC_SUBST(ENABLE_LIBCPP,[0]) ;;
502 default) AC_SUBST(ENABLE_LIBCPP,[0]);;
503 *) AC_MSG_ERROR([Invalid setting for --enable-libcpp. Use "yes" or "no"]) ;;
506 dnl --enable-cxx11 : check whether or not to use -std=c++11 on the command line
508 AS_HELP_STRING([--enable-cxx11],
509 [Use c++11 if available (default is NO)]),,
512 yes) AC_SUBST(ENABLE_CXX11,[1]) ;;
513 no) AC_SUBST(ENABLE_CXX11,[0]) ;;
514 default) AC_SUBST(ENABLE_CXX11,[0]);;
515 *) AC_MSG_ERROR([Invalid setting for --enable-cxx11. Use "yes" or "no"]) ;;
518 dnl --enable-fission : check whether or not to use -gsplit-dwarf on the command
520 AC_ARG_ENABLE(split-dwarf,
521 AS_HELP_STRING([--enable-split-dwarf],
522 [Use split-dwarf if available (default is NO)]),,
525 yes) AC_SUBST(ENABLE_SPLIT_DWARF,[1]) ;;
526 no) AC_SUBST(ENABLE_SPLIT_DWARF,[0]) ;;
527 default) AC_SUBST(ENABLE_SPLIT_DWARF,[0]);;
528 *) AC_MSG_ERROR([Invalid setting for --enable-split-dwarf. Use "yes" or "no"]) ;;
531 dnl --enable-clang-arcmt: check whether to enable clang arcmt
533 AC_ARG_ENABLE(clang-arcmt,
534 AS_HELP_STRING([--enable-clang-arcmt],
535 [Enable building of clang ARCMT (default is YES)]),
536 clang_arcmt="$enableval",
539 yes) AC_SUBST(ENABLE_CLANG_ARCMT,[1]) ;;
540 no) AC_SUBST(ENABLE_CLANG_ARCMT,[0]) ;;
541 default) AC_SUBST(ENABLE_CLANG_ARCMT,[1]);;
542 *) AC_MSG_ERROR([Invalid setting for --enable-clang-arcmt. Use "yes" or "no"]) ;;
545 dnl --enable-clang-static-analyzer: check whether to enable static-analyzer
546 clang_static_analyzer="yes"
547 AC_ARG_ENABLE(clang-static-analyzer,
548 AS_HELP_STRING([--enable-clang-static-analyzer],
549 [Enable building of clang Static Analyzer (default is YES)]),
550 clang_static_analyzer="$enableval",
553 yes) AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[1]) ;;
555 if test ${clang_arcmt} != "no" ; then
556 AC_MSG_ERROR([Cannot enable clang ARC Migration Tool while disabling static analyzer.])
558 AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[0])
560 default) AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[1]);;
561 *) AC_MSG_ERROR([Invalid setting for --enable-clang-static-analyzer. Use "yes" or "no"]) ;;
564 dnl --enable-clang-rewriter: check whether to enable clang rewriter
565 AC_ARG_ENABLE(clang-rewriter,
566 AS_HELP_STRING([--enable-clang-rewriter],
567 [Enable building of clang rewriter (default is YES)]),,
570 yes) AC_SUBST(ENABLE_CLANG_REWRITER,[1]) ;;
572 if test ${clang_arcmt} != "no" ; then
573 AC_MSG_ERROR([Cannot enable clang ARC Migration Tool while disabling rewriter.])
575 if test ${clang_static_analyzer} != "no" ; then
576 AC_MSG_ERROR([Cannot enable clang static analyzer while disabling rewriter.])
578 AC_SUBST(ENABLE_CLANG_REWRITER,[0])
580 default) AC_SUBST(ENABLE_CLANG_REWRITER,[1]);;
581 *) AC_MSG_ERROR([Invalid setting for --enable-clang-rewriter. Use "yes" or "no"]) ;;
584 dnl --enable-optimized : check whether they want to do an optimized build:
585 AC_ARG_ENABLE(optimized, AS_HELP_STRING(
586 --enable-optimized,[Compile with optimizations enabled (default is NO)]),,enableval=$optimize)
587 if test ${enableval} = "no" ; then
588 AC_SUBST(ENABLE_OPTIMIZED,[[]])
590 AC_SUBST(ENABLE_OPTIMIZED,[[ENABLE_OPTIMIZED=1]])
593 dnl --enable-profiling : check whether they want to do a profile build:
594 AC_ARG_ENABLE(profiling, AS_HELP_STRING(
595 --enable-profiling,[Compile with profiling enabled (default is NO)]),,enableval="no")
596 if test ${enableval} = "no" ; then
597 AC_SUBST(ENABLE_PROFILING,[[]])
599 AC_SUBST(ENABLE_PROFILING,[[ENABLE_PROFILING=1]])
602 dnl --enable-assertions : check whether they want to turn on assertions or not:
603 AC_ARG_ENABLE(assertions,AS_HELP_STRING(
604 --enable-assertions,[Compile with assertion checks enabled (default is YES)]),, enableval="yes")
605 if test ${enableval} = "yes" ; then
606 AC_SUBST(DISABLE_ASSERTIONS,[[]])
608 AC_SUBST(DISABLE_ASSERTIONS,[[DISABLE_ASSERTIONS=1]])
611 dnl --enable-werror : check whether we want Werror on by default
612 AC_ARG_ENABLE(werror,AS_HELP_STRING(
613 --enable-werror,[Compile with -Werror enabled (default is NO)]),, enableval="no")
615 yes) AC_SUBST(ENABLE_WERROR,[1]) ;;
616 no) AC_SUBST(ENABLE_WERROR,[0]) ;;
617 default) AC_SUBST(ENABLE_WERROR,[0]);;
618 *) AC_MSG_ERROR([Invalid setting for --enable-werror. Use "yes" or "no"]) ;;
621 dnl --enable-expensive-checks : check whether they want to turn on expensive debug checks:
622 AC_ARG_ENABLE(expensive-checks,AS_HELP_STRING(
623 --enable-expensive-checks,[Compile with expensive debug checks enabled (default is NO)]),, enableval="no")
624 if test ${enableval} = "yes" ; then
625 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[ENABLE_EXPENSIVE_CHECKS=1]])
626 AC_SUBST(EXPENSIVE_CHECKS,[[yes]])
628 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[]])
629 AC_SUBST(EXPENSIVE_CHECKS,[[no]])
632 dnl --enable-debug-runtime : should runtime libraries have debug symbols?
633 AC_ARG_ENABLE(debug-runtime,
634 AS_HELP_STRING(--enable-debug-runtime,[Build runtime libs with debug symbols (default is NO)]),,enableval=no)
635 if test ${enableval} = "no" ; then
636 AC_SUBST(DEBUG_RUNTIME,[[]])
638 AC_SUBST(DEBUG_RUNTIME,[[DEBUG_RUNTIME=1]])
641 dnl --enable-debug-symbols : should even optimized compiler libraries
642 dnl have debug symbols?
643 AC_ARG_ENABLE(debug-symbols,
644 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)
645 if test ${enableval} = "no" ; then
646 AC_SUBST(DEBUG_SYMBOLS,[[]])
648 AC_SUBST(DEBUG_SYMBOLS,[[DEBUG_SYMBOLS=1]])
651 dnl --enable-keep-symbols : do not strip installed executables
652 AC_ARG_ENABLE(keep-symbols,
653 AS_HELP_STRING(--enable-keep-symbols,[Do not strip installed executables)]),,enableval=no)
654 if test ${enableval} = "no" ; then
655 AC_SUBST(KEEP_SYMBOLS,[[]])
657 AC_SUBST(KEEP_SYMBOLS,[[KEEP_SYMBOLS=1]])
660 dnl --enable-jit: check whether they want to enable the jit
662 AS_HELP_STRING(--enable-jit,
663 [Enable Just In Time Compiling (default is YES)]),,
665 if test ${enableval} = "no"
669 case "$llvm_cv_target_arch" in
670 x86) AC_SUBST(TARGET_HAS_JIT,1) ;;
671 Sparc) AC_SUBST(TARGET_HAS_JIT,0) ;;
672 PowerPC) AC_SUBST(TARGET_HAS_JIT,1) ;;
673 x86_64) AC_SUBST(TARGET_HAS_JIT,1) ;;
674 ARM) AC_SUBST(TARGET_HAS_JIT,1) ;;
675 AArch64) AC_SUBST(TARGET_HAS_JIT,0) ;;
676 Mips) AC_SUBST(TARGET_HAS_JIT,1) ;;
677 XCore) AC_SUBST(TARGET_HAS_JIT,0) ;;
678 MSP430) AC_SUBST(TARGET_HAS_JIT,0) ;;
679 Hexagon) AC_SUBST(TARGET_HAS_JIT,0) ;;
680 NVPTX) AC_SUBST(TARGET_HAS_JIT,0) ;;
681 SystemZ) AC_SUBST(TARGET_HAS_JIT,1) ;;
682 *) AC_SUBST(TARGET_HAS_JIT,0) ;;
686 dnl Allow enablement of building and installing docs
688 AS_HELP_STRING([--enable-docs],
689 [Build documents (default is YES)]),,
692 yes) AC_SUBST(ENABLE_DOCS,[1]) ;;
693 no) AC_SUBST(ENABLE_DOCS,[0]) ;;
694 default) AC_SUBST(ENABLE_DOCS,[1]) ;;
695 *) AC_MSG_ERROR([Invalid setting for --enable-docs. Use "yes" or "no"]) ;;
698 dnl Allow enablement of doxygen generated documentation
699 AC_ARG_ENABLE(doxygen,
700 AS_HELP_STRING([--enable-doxygen],
701 [Build doxygen documentation (default is NO)]),,
704 yes) AC_SUBST(ENABLE_DOXYGEN,[1]) ;;
705 no) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
706 default) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
707 *) AC_MSG_ERROR([Invalid setting for --enable-doxygen. Use "yes" or "no"]) ;;
710 dnl Allow disablement of threads
711 AC_ARG_ENABLE(threads,
712 AS_HELP_STRING([--enable-threads],
713 [Use threads if available (default is YES)]),,
716 yes) AC_SUBST(LLVM_ENABLE_THREADS,[1]) ;;
717 no) AC_SUBST(LLVM_ENABLE_THREADS,[0]) ;;
718 default) AC_SUBST(LLVM_ENABLE_THREADS,[1]) ;;
719 *) AC_MSG_ERROR([Invalid setting for --enable-threads. Use "yes" or "no"]) ;;
721 AC_DEFINE_UNQUOTED([LLVM_ENABLE_THREADS],$LLVM_ENABLE_THREADS,
722 [Define if threads enabled])
724 dnl Allow disablement of pthread.h
725 AC_ARG_ENABLE(pthreads,
726 AS_HELP_STRING([--enable-pthreads],
727 [Use pthreads if available (default is YES)]),,
730 yes) AC_SUBST(ENABLE_PTHREADS,[1]) ;;
731 no) AC_SUBST(ENABLE_PTHREADS,[0]) ;;
732 default) AC_SUBST(ENABLE_PTHREADS,[1]) ;;
733 *) AC_MSG_ERROR([Invalid setting for --enable-pthreads. Use "yes" or "no"]) ;;
736 dnl Allow disablement of zlib
738 AS_HELP_STRING([--enable-zlib],
739 [Use zlib for compression/decompression if
740 available (default is YES)]),,
743 yes) AC_SUBST(LLVM_ENABLE_ZLIB,[1]) ;;
744 no) AC_SUBST(LLVM_ENABLE_ZLIB,[0]) ;;
745 default) AC_SUBST(LLVM_ENABLE_ZLIB,[1]) ;;
746 *) AC_MSG_ERROR([Invalid setting for --enable-zlib. Use "yes" or "no"]) ;;
748 AC_DEFINE_UNQUOTED([LLVM_ENABLE_ZLIB],$LLVM_ENABLE_ZLIB,
749 [Define if zlib is enabled])
751 dnl Allow building without position independent code
753 AS_HELP_STRING([--enable-pic],
754 [Build LLVM with Position Independent Code (default is YES)]),,
757 yes) AC_SUBST(ENABLE_PIC,[1]) ;;
758 no) AC_SUBST(ENABLE_PIC,[0]) ;;
759 default) AC_SUBST(ENABLE_PIC,[1]) ;;
760 *) AC_MSG_ERROR([Invalid setting for --enable-pic. Use "yes" or "no"]) ;;
762 AC_DEFINE_UNQUOTED([ENABLE_PIC],$ENABLE_PIC,
763 [Define if position independent code is enabled])
765 dnl Allow building a shared library and linking tools against it.
766 AC_ARG_ENABLE(shared,
767 AS_HELP_STRING([--enable-shared],
768 [Build a shared library and link tools against it (default is NO)]),,
771 yes) AC_SUBST(ENABLE_SHARED,[1]) ;;
772 no) AC_SUBST(ENABLE_SHARED,[0]) ;;
773 default) AC_SUBST(ENABLE_SHARED,[0]) ;;
774 *) AC_MSG_ERROR([Invalid setting for --enable-shared. Use "yes" or "no"]) ;;
777 dnl Allow libstdc++ is embedded in LLVM.dll.
778 AC_ARG_ENABLE(embed-stdcxx,
779 AS_HELP_STRING([--enable-embed-stdcxx],
780 [Build a shared library with embedded libstdc++ for Win32 DLL (default is NO)]),,
783 yes) AC_SUBST(ENABLE_EMBED_STDCXX,[1]) ;;
784 no) AC_SUBST(ENABLE_EMBED_STDCXX,[0]) ;;
785 default) AC_SUBST(ENABLE_EMBED_STDCXX,[0]) ;;
786 *) AC_MSG_ERROR([Invalid setting for --enable-embed-stdcxx. Use "yes" or "no"]) ;;
789 dnl Enable embedding timestamp information into build.
790 AC_ARG_ENABLE(timestamps,
791 AS_HELP_STRING([--enable-timestamps],
792 [Enable embedding timestamp information in build (default is YES)]),,
795 yes) AC_SUBST(ENABLE_TIMESTAMPS,[1]) ;;
796 no) AC_SUBST(ENABLE_TIMESTAMPS,[0]) ;;
797 default) AC_SUBST(ENABLE_TIMESTAMPS,[1]) ;;
798 *) AC_MSG_ERROR([Invalid setting for --enable-timestamps. Use "yes" or "no"]) ;;
800 AC_DEFINE_UNQUOTED([ENABLE_TIMESTAMPS],$ENABLE_TIMESTAMPS,
801 [Define if timestamp information (e.g., __DATE__) is allowed])
803 dnl Enable embedding timestamp information into build.
805 AC_ARG_ENABLE(backtraces,
806 AS_HELP_STRING([--enable-backtraces],
807 [Enable embedding backtraces on crash (default is YES)]),,
810 yes) AC_SUBST(ENABLE_BACKTRACES,[1]) ;;
811 no) AC_SUBST(ENABLE_BACKTRACES,[0]) ;;
812 default) AC_SUBST(ENABLE_BACKTRACES,[1]) ;;
813 *) AC_MSG_ERROR([Invalid setting for --enable-backtraces. Use "yes" or "no"]) ;;
815 AC_DEFINE_UNQUOTED([ENABLE_BACKTRACES],$ENABLE_BACKTRACES,
816 [Define if you want backtraces on crash])
818 dnl Allow specific targets to be specified for building (or not)
820 AC_ARG_ENABLE([targets],AS_HELP_STRING([--enable-targets],
821 [Build specific host targets: all or target1,target2,... Valid targets are:
822 host, x86, x86_64, sparc, powerpc, arm, aarch64, mips, hexagon,
823 xcore, msp430, nvptx, systemz, r600, and cpp (default=all)]),,
825 if test "$enableval" = host-only ; then
829 all) TARGETS_TO_BUILD="X86 Sparc PowerPC AArch64 ARM Mips XCore MSP430 CppBackend NVPTX Hexagon SystemZ R600" ;;
830 *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
832 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
833 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
834 sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
835 powerpc) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
836 aarch64) TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
837 arm) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
838 mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
839 mipsel) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
840 mips64) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
841 mips64el) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
842 xcore) TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
843 msp430) TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;;
844 cpp) TARGETS_TO_BUILD="CppBackend $TARGETS_TO_BUILD" ;;
845 hexagon) TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;;
846 nvptx) TARGETS_TO_BUILD="NVPTX $TARGETS_TO_BUILD" ;;
847 systemz) TARGETS_TO_BUILD="SystemZ $TARGETS_TO_BUILD" ;;
848 r600) TARGETS_TO_BUILD="R600 $TARGETS_TO_BUILD" ;;
849 host) case "$llvm_cv_target_arch" in
850 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
851 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
852 Sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
853 PowerPC) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
854 AArch64) TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
855 ARM) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
856 Mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
857 XCore) TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
858 MSP430) TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;;
859 Hexagon) TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;;
860 NVPTX) TARGETS_TO_BUILD="NVPTX $TARGETS_TO_BUILD" ;;
861 SystemZ) TARGETS_TO_BUILD="SystemZ $TARGETS_TO_BUILD" ;;
862 *) AC_MSG_ERROR([Can not set target to build]) ;;
864 *) AC_MSG_ERROR([Unrecognized target $a_target]) ;;
870 AC_ARG_ENABLE([experimental-targets],AS_HELP_STRING([--enable-experimental-targets],
871 [Build experimental host targets: disable or target1,target2,...
872 (default=disable)]),,
875 if test ${enableval} != "disable"
877 TARGETS_TO_BUILD="$enableval $TARGETS_TO_BUILD"
880 AC_SUBST(TARGETS_TO_BUILD,$TARGETS_TO_BUILD)
882 dnl Determine whether we are building LLVM support for the native architecture.
883 dnl If so, define LLVM_NATIVE_ARCH to that LLVM target.
884 for a_target in $TARGETS_TO_BUILD; do
885 if test "$a_target" = "$LLVM_NATIVE_ARCH"; then
886 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ARCH, $LLVM_NATIVE_ARCH,
887 [LLVM architecture name for the native architecture, if available])
888 LLVM_NATIVE_TARGET="LLVMInitialize${LLVM_NATIVE_ARCH}Target"
889 LLVM_NATIVE_TARGETINFO="LLVMInitialize${LLVM_NATIVE_ARCH}TargetInfo"
890 LLVM_NATIVE_TARGETMC="LLVMInitialize${LLVM_NATIVE_ARCH}TargetMC"
891 LLVM_NATIVE_ASMPRINTER="LLVMInitialize${LLVM_NATIVE_ARCH}AsmPrinter"
892 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/Makefile ; then
893 LLVM_NATIVE_ASMPARSER="LLVMInitialize${LLVM_NATIVE_ARCH}AsmParser"
895 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/Makefile ; then
896 LLVM_NATIVE_DISASSEMBLER="LLVMInitialize${LLVM_NATIVE_ARCH}Disassembler"
898 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGET, $LLVM_NATIVE_TARGET,
899 [LLVM name for the native Target init function, if available])
900 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGETINFO, $LLVM_NATIVE_TARGETINFO,
901 [LLVM name for the native TargetInfo init function, if available])
902 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGETMC, $LLVM_NATIVE_TARGETMC,
903 [LLVM name for the native target MC init function, if available])
904 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ASMPRINTER, $LLVM_NATIVE_ASMPRINTER,
905 [LLVM name for the native AsmPrinter init function, if available])
906 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/Makefile ; then
907 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ASMPARSER, $LLVM_NATIVE_ASMPARSER,
908 [LLVM name for the native AsmParser init function, if available])
910 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/Makefile ; then
911 AC_DEFINE_UNQUOTED(LLVM_NATIVE_DISASSEMBLER, $LLVM_NATIVE_DISASSEMBLER,
912 [LLVM name for the native Disassembler init function, if available])
917 dnl Build the LLVM_TARGET and LLVM_... macros for Targets.def and the individual
918 dnl target feature def files.
920 LLVM_ENUM_ASM_PRINTERS=""
921 LLVM_ENUM_ASM_PARSERS=""
922 LLVM_ENUM_DISASSEMBLERS=""
923 for target_to_build in $TARGETS_TO_BUILD; do
924 LLVM_ENUM_TARGETS="LLVM_TARGET($target_to_build) $LLVM_ENUM_TARGETS"
925 if test -f ${srcdir}/lib/Target/${target_to_build}/*AsmPrinter.cpp ; then
926 LLVM_ENUM_ASM_PRINTERS="LLVM_ASM_PRINTER($target_to_build) $LLVM_ENUM_ASM_PRINTERS";
928 if test -f ${srcdir}/lib/Target/${target_to_build}/AsmParser/Makefile ; then
929 LLVM_ENUM_ASM_PARSERS="LLVM_ASM_PARSER($target_to_build) $LLVM_ENUM_ASM_PARSERS";
931 if test -f ${srcdir}/lib/Target/${target_to_build}/Disassembler/Makefile ; then
932 LLVM_ENUM_DISASSEMBLERS="LLVM_DISASSEMBLER($target_to_build) $LLVM_ENUM_DISASSEMBLERS";
935 AC_SUBST(LLVM_ENUM_TARGETS)
936 AC_SUBST(LLVM_ENUM_ASM_PRINTERS)
937 AC_SUBST(LLVM_ENUM_ASM_PARSERS)
938 AC_SUBST(LLVM_ENUM_DISASSEMBLERS)
940 dnl Override the option to use for optimized builds.
941 AC_ARG_WITH(optimize-option,
942 AS_HELP_STRING([--with-optimize-option],
943 [Select the compiler options to use for optimized builds]),,
945 AC_MSG_CHECKING([optimization flags])
948 case "$llvm_cv_os_type" in
949 FreeBSD) optimize_option=-O2 ;;
950 MingW) optimize_option=-O2 ;;
951 *) optimize_option=-O3 ;;
953 *) optimize_option="$withval" ;;
955 AC_SUBST(OPTIMIZE_OPTION,$optimize_option)
956 AC_MSG_RESULT([$optimize_option])
958 dnl Specify extra build options
959 AC_ARG_WITH(extra-options,
960 AS_HELP_STRING([--with-extra-options],
961 [Specify additional options to compile LLVM with]),,
964 default) EXTRA_OPTIONS= ;;
965 *) EXTRA_OPTIONS=$withval ;;
967 AC_SUBST(EXTRA_OPTIONS,$EXTRA_OPTIONS)
969 dnl Specify extra linker build options
970 AC_ARG_WITH(extra-ld-options,
971 AS_HELP_STRING([--with-extra-ld-options],
972 [Specify additional options to link LLVM with]),,
975 default) EXTRA_LD_OPTIONS= ;;
976 *) EXTRA_LD_OPTIONS=$withval ;;
978 AC_SUBST(EXTRA_LD_OPTIONS,$EXTRA_LD_OPTIONS)
980 dnl Allow specific bindings to be specified for building (or not)
981 AC_ARG_ENABLE([bindings],AS_HELP_STRING([--enable-bindings],
982 [Build specific language bindings: all,auto,none,{binding-name} (default=auto)]),,
986 yes | default | auto) BINDINGS_TO_BUILD="auto" ;;
987 all ) BINDINGS_TO_BUILD="ocaml" ;;
988 none | no) BINDINGS_TO_BUILD="" ;;
989 *)for a_binding in `echo $enableval|sed -e 's/,/ /g' ` ; do
991 ocaml) BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD" ;;
992 *) AC_MSG_ERROR([Unrecognized binding $a_binding]) ;;
998 dnl Allow the ocaml libdir to be overridden. This could go in a configure
999 dnl script for bindings/ocaml/configure, except that its auto value depends on
1000 dnl OCAMLC, which is found here to support tests.
1001 AC_ARG_WITH([ocaml-libdir],
1002 [AS_HELP_STRING([--with-ocaml-libdir],
1003 [Specify install location for ocaml bindings (default is stdlib)])],
1007 auto) with_ocaml_libdir="$withval" ;;
1008 /* | [[A-Za-z]]:[[\\/]]*) with_ocaml_libdir="$withval" ;;
1009 *) AC_MSG_ERROR([Invalid path for --with-ocaml-libdir. Provide full path]) ;;
1012 AC_ARG_WITH(clang-srcdir,
1013 AS_HELP_STRING([--with-clang-srcdir],
1014 [Directory to the out-of-tree Clang source]),,
1017 -) clang_src_root="" ;;
1018 /* | [[A-Za-z]]:[[\\/]]*) clang_src_root="$withval" ;;
1019 *) clang_src_root="$ac_pwd/$withval" ;;
1021 AC_SUBST(CLANG_SRC_ROOT,[$clang_src_root])
1023 AC_ARG_WITH(clang-resource-dir,
1024 AS_HELP_STRING([--with-clang-resource-dir],
1025 [Relative directory from the Clang binary for resource files]),,
1027 AC_DEFINE_UNQUOTED(CLANG_RESOURCE_DIR,"$withval",
1028 [Relative directory for resource files])
1030 AC_ARG_WITH(c-include-dirs,
1031 AS_HELP_STRING([--with-c-include-dirs],
1032 [Colon separated list of directories clang will search for headers]),,
1034 AC_DEFINE_UNQUOTED(C_INCLUDE_DIRS,"$withval",
1035 [Directories clang will search for headers])
1037 # Clang normally uses the system c++ headers and libraries. With this option,
1038 # clang will use the ones provided by a gcc installation instead. This option should
1039 # be passed the same value that was used with --prefix when configuring gcc.
1040 AC_ARG_WITH(gcc-toolchain,
1041 AS_HELP_STRING([--with-gcc-toolchain],
1042 [Directory where gcc is installed.]),,
1044 AC_DEFINE_UNQUOTED(GCC_INSTALL_PREFIX,"$withval",
1045 [Directory where gcc is installed.])
1047 AC_ARG_WITH(default-sysroot,
1048 AS_HELP_STRING([--with-default-sysroot],
1049 [Add --sysroot=<path> to all compiler invocations.]),,
1051 AC_DEFINE_UNQUOTED(DEFAULT_SYSROOT,"$withval",
1052 [Default <path> to all compiler invocations for --sysroot=<path>.])
1054 dnl Allow linking of LLVM with GPLv3 binutils code.
1055 AC_ARG_WITH(binutils-include,
1056 AS_HELP_STRING([--with-binutils-include],
1057 [Specify path to binutils/include/ containing plugin-api.h file for gold plugin.]),,
1060 default) WITH_BINUTILS_INCDIR=default ;;
1061 /* | [[A-Za-z]]:[[\\/]]*) WITH_BINUTILS_INCDIR=$withval ;;
1062 *) AC_MSG_ERROR([Invalid path for --with-binutils-include. Provide full path]) ;;
1064 if test "x$WITH_BINUTILS_INCDIR" != xdefault ; then
1065 AC_SUBST(BINUTILS_INCDIR,$WITH_BINUTILS_INCDIR)
1066 if test ! -f "$WITH_BINUTILS_INCDIR/plugin-api.h"; then
1067 echo "$WITH_BINUTILS_INCDIR/plugin-api.h"
1068 AC_MSG_ERROR([Invalid path to directory containing plugin-api.h.]);
1072 dnl Specify the URL where bug reports should be submitted.
1073 AC_ARG_WITH(bug-report-url,
1074 AS_HELP_STRING([--with-bug-report-url],
1075 [Specify the URL where bug reports should be submitted (default=http://llvm.org/bugs/)]),,
1076 withval="http://llvm.org/bugs/")
1077 AC_DEFINE_UNQUOTED(BUG_REPORT_URL,"$withval",
1080 dnl --enable-terminfo: check whether the user wants to control use of terminfo:
1081 AC_ARG_ENABLE(terminfo,AS_HELP_STRING(
1082 [--enable-terminfo],
1083 [Query the terminfo database if available (default is YES)]),
1084 [case "$enableval" in
1085 yes) llvm_cv_enable_terminfo="yes" ;;
1086 no) llvm_cv_enable_terminfo="no" ;;
1087 *) AC_MSG_ERROR([Invalid setting for --enable-terminfo. Use "yes" or "no"]) ;;
1089 llvm_cv_enable_terminfo="yes")
1091 dnl --enable-libffi : check whether the user wants to turn off libffi:
1092 AC_ARG_ENABLE(libffi,AS_HELP_STRING(
1093 --enable-libffi,[Check for the presence of libffi (default is NO)]),
1094 [case "$enableval" in
1095 yes) llvm_cv_enable_libffi="yes" ;;
1096 no) llvm_cv_enable_libffi="no" ;;
1097 *) AC_MSG_ERROR([Invalid setting for --enable-libffi. Use "yes" or "no"]) ;;
1099 llvm_cv_enable_libffi=no)
1101 AC_ARG_WITH(internal-prefix,
1102 AS_HELP_STRING([--with-internal-prefix],
1103 [Installation directory for internal files]),,
1105 AC_SUBST(INTERNAL_PREFIX,[$withval])
1107 dnl===-----------------------------------------------------------------------===
1109 dnl=== SECTION 4: Check for programs we need and that they are the right version
1111 dnl===-----------------------------------------------------------------------===
1116 dnl Check for the tools that the makefiles require
1119 AC_PATH_PROG(CMP, [cmp], [cmp])
1120 AC_PATH_PROG(CP, [cp], [cp])
1121 AC_PATH_PROG(DATE, [date], [date])
1122 AC_PATH_PROG(FIND, [find], [find])
1123 AC_PATH_PROG(GREP, [grep], [grep])
1124 AC_PATH_PROG(MKDIR,[mkdir],[mkdir])
1125 AC_PATH_PROG(MV, [mv], [mv])
1127 AC_CHECK_TOOL(AR, ar, false)
1128 AC_PATH_PROG(RM, [rm], [rm])
1129 AC_PATH_PROG(SED, [sed], [sed])
1130 AC_PATH_PROG(TAR, [tar], [gtar])
1131 AC_PATH_PROG(BINPWD,[pwd], [pwd])
1133 dnl Looking for misc. graph plotting software
1134 AC_PATH_PROG(GRAPHVIZ, [Graphviz], [echo Graphviz])
1135 if test "$GRAPHVIZ" != "echo Graphviz" ; then
1136 AC_DEFINE([HAVE_GRAPHVIZ],[1],[Define if the Graphviz program is available])
1137 dnl If we're targeting for mingw we should emit windows paths, not msys
1138 if test "$llvm_cv_os_type" = "MingW" ; then
1139 GRAPHVIZ=`echo $GRAPHVIZ | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1141 AC_DEFINE_UNQUOTED([LLVM_PATH_GRAPHVIZ],"$GRAPHVIZ${EXEEXT}",
1142 [Define to path to Graphviz program if found or 'echo Graphviz' otherwise])
1144 AC_PATH_PROG(DOT, [dot], [echo dot])
1145 if test "$DOT" != "echo dot" ; then
1146 AC_DEFINE([HAVE_DOT],[1],[Define if the dot program is available])
1147 dnl If we're targeting for mingw we should emit windows paths, not msys
1148 if test "$llvm_cv_os_type" = "MingW" ; then
1149 DOT=`echo $DOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1151 AC_DEFINE_UNQUOTED([LLVM_PATH_DOT],"$DOT${EXEEXT}",
1152 [Define to path to dot program if found or 'echo dot' otherwise])
1154 AC_PATH_PROG(FDP, [fdp], [echo fdp])
1155 if test "$FDP" != "echo fdp" ; then
1156 AC_DEFINE([HAVE_FDP],[1],[Define if the neat program is available])
1157 dnl If we're targeting for mingw we should emit windows paths, not msys
1158 if test "$llvm_cv_os_type" = "MingW" ; then
1159 FDP=`echo $FDP | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1161 AC_DEFINE_UNQUOTED([LLVM_PATH_FDP],"$FDP${EXEEXT}",
1162 [Define to path to fdp program if found or 'echo fdp' otherwise])
1164 AC_PATH_PROG(NEATO, [neato], [echo neato])
1165 if test "$NEATO" != "echo neato" ; then
1166 AC_DEFINE([HAVE_NEATO],[1],[Define if the neat program is available])
1167 dnl If we're targeting for mingw we should emit windows paths, not msys
1168 if test "$llvm_cv_os_type" = "MingW" ; then
1169 NEATO=`echo $NEATO | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1171 AC_DEFINE_UNQUOTED([LLVM_PATH_NEATO],"$NEATO${EXEEXT}",
1172 [Define to path to neato program if found or 'echo neato' otherwise])
1174 AC_PATH_PROG(TWOPI, [twopi], [echo twopi])
1175 if test "$TWOPI" != "echo twopi" ; then
1176 AC_DEFINE([HAVE_TWOPI],[1],[Define if the neat program is available])
1177 dnl If we're targeting for mingw we should emit windows paths, not msys
1178 if test "$llvm_cv_os_type" = "MingW" ; then
1179 TWOPI=`echo $TWOPI | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1181 AC_DEFINE_UNQUOTED([LLVM_PATH_TWOPI],"$TWOPI${EXEEXT}",
1182 [Define to path to twopi program if found or 'echo twopi' otherwise])
1184 AC_PATH_PROG(CIRCO, [circo], [echo circo])
1185 if test "$CIRCO" != "echo circo" ; then
1186 AC_DEFINE([HAVE_CIRCO],[1],[Define if the neat program is available])
1187 dnl If we're targeting for mingw we should emit windows paths, not msys
1188 if test "$llvm_cv_os_type" = "MingW" ; then
1189 CIRCO=`echo $CIRCO | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1191 AC_DEFINE_UNQUOTED([LLVM_PATH_CIRCO],"$CIRCO${EXEEXT}",
1192 [Define to path to circo program if found or 'echo circo' otherwise])
1194 AC_PATH_PROGS(GV, [gv gsview32], [echo gv])
1195 if test "$GV" != "echo gv" ; then
1196 AC_DEFINE([HAVE_GV],[1],[Define if the gv program is available])
1197 dnl If we're targeting for mingw we should emit windows paths, not msys
1198 if test "$llvm_cv_os_type" = "MingW" ; then
1199 GV=`echo $GV | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1201 AC_DEFINE_UNQUOTED([LLVM_PATH_GV],"$GV${EXEEXT}",
1202 [Define to path to gv program if found or 'echo gv' otherwise])
1204 AC_PATH_PROG(DOTTY, [dotty], [echo dotty])
1205 if test "$DOTTY" != "echo dotty" ; then
1206 AC_DEFINE([HAVE_DOTTY],[1],[Define if the dotty program is available])
1207 dnl If we're targeting for mingw we should emit windows paths, not msys
1208 if test "$llvm_cv_os_type" = "MingW" ; then
1209 DOTTY=`echo $DOTTY | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1211 AC_DEFINE_UNQUOTED([LLVM_PATH_DOTTY],"$DOTTY${EXEEXT}",
1212 [Define to path to dotty program if found or 'echo dotty' otherwise])
1214 AC_PATH_PROGS(XDOT, [xdot xdot.py], [echo xdot])
1215 if test "$XDOT" != "echo xdot" ; then
1216 AC_DEFINE([HAVE_XDOT],[1],[Define if the xdot program is available])
1217 dnl If we're targeting for mingw we should emit windows paths, not msys
1218 if test "$llvm_cv_os_type" = "MingW" ; then
1219 XDOT=`echo $XDOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1221 AC_DEFINE_UNQUOTED([LLVM_PATH_XDOT],"$XDOT${EXEEXT}",
1222 [Define to path to xdot program if found or 'echo xdot' otherwise])
1225 dnl Find the install program
1227 dnl Prepend src dir to install path dir if it's a relative path
1228 dnl This is a hack for installs that take place in something other
1229 dnl than the top level.
1231 [[\\/$]]* | ?:[[\\/]]* ) ;;
1232 *) INSTALL="\\\$(TOPSRCDIR)/$INSTALL" ;;
1235 dnl Checks for documentation and testing tools that we can do without. If these
1236 dnl are not found then they are set to "true" which always succeeds but does
1237 dnl nothing. This just lets the build output show that we could have done
1238 dnl something if the tool was available.
1239 AC_PATH_PROG(BZIP2, [bzip2])
1240 AC_PATH_PROG(CAT, [cat])
1241 AC_PATH_PROG(DOXYGEN, [doxygen])
1242 AC_PATH_PROG(GROFF, [groff])
1243 AC_PATH_PROG(GZIPBIN, [gzip])
1244 AC_PATH_PROG(PDFROFF, [pdfroff])
1245 AC_PATH_PROG(ZIP, [zip])
1246 AC_PATH_PROGS(OCAMLC, [ocamlc])
1247 AC_PATH_PROGS(OCAMLOPT, [ocamlopt])
1248 AC_PATH_PROGS(OCAMLDEP, [ocamldep])
1249 AC_PATH_PROGS(OCAMLDOC, [ocamldoc])
1250 AC_PATH_PROGS(GAS, [gas as])
1252 dnl Get the version of the linker in use.
1255 dnl Determine whether the linker supports the -R option.
1258 dnl Determine whether the compiler supports the -rdynamic option.
1259 AC_LINK_EXPORT_DYNAMIC
1261 dnl Determine whether the linker supports the --version-script option.
1262 AC_LINK_VERSION_SCRIPT
1264 dnl Check for libtool and the library that has dlopen function (which must come
1265 dnl before the AC_PROG_LIBTOOL check in order to enable dlopening libraries with
1270 AC_MSG_CHECKING([tool compatibility])
1272 dnl Ensure that compilation tools are GCC or a GNU compatible compiler such as
1273 dnl ICC; we use GCC specific options in the makefiles so the compiler needs
1274 dnl to support those options.
1275 dnl "icc" emits gcc signatures
1276 dnl "icc -no-gcc" emits no gcc signature BUT is still compatible
1288 if test "$GCC" != "yes" && test "$ICC" != "yes"
1290 AC_MSG_ERROR([gcc|icc required but not found])
1293 dnl Ensure that compilation tools are compatible with GCC extensions
1294 if test "$GXX" != "yes" && test "$IXX" != "yes"
1296 AC_MSG_ERROR([g++|clang++|icc required but not found])
1299 dnl Verify that GCC is version 3.0 or higher
1300 if test "$GCC" = "yes"
1305 #if !defined(__GNUC__) || __GNUC__ < 3
1306 #error Unsupported GCC version
1310 [], [AC_MSG_ERROR([gcc 3.x required, but you have a lower version])])
1313 dnl Check for GNU Make. We use its extensions, so don't build without it
1314 if test -z "$llvm_cv_gnu_make_command"
1316 AC_MSG_ERROR([GNU Make required but not found])
1319 dnl Tool compatibility is okay if we make it here.
1322 dnl Check optional compiler flags.
1323 AC_MSG_CHECKING([optional compiler flags])
1324 CXX_FLAG_CHECK(NO_VARIADIC_MACROS, [-Wno-variadic-macros])
1325 CXX_FLAG_CHECK(NO_MISSING_FIELD_INITIALIZERS, [-Wno-missing-field-initializers])
1326 CXX_FLAG_CHECK(COVERED_SWITCH_DEFAULT, [-Wcovered-switch-default])
1328 dnl GCC's potential uninitialized use analysis is weak and presents lots of
1329 dnl false positives, so disable it.
1331 NO_MAYBE_UNINITIALIZED=
1332 if test "$GXX" = "yes"
1334 CXX_FLAG_CHECK(NO_MAYBE_UNINITIALIZED, [-Wno-maybe-uninitialized])
1335 dnl gcc 4.7 introduced -Wmaybe-uninitialized to distinguish cases which are
1336 dnl known to be uninitialized from cases which might be uninitialized. We
1337 dnl still want to catch the first kind of errors.
1338 if test -z "$NO_MAYBE_UNINITIALIZED"
1340 CXX_FLAG_CHECK(NO_UNINITIALIZED, [-Wno-uninitialized])
1343 AC_MSG_RESULT([$NO_VARIADIC_MACROS $NO_MISSING_FIELD_INITIALIZERS $COVERED_SWITCH_DEFAULT $NO_UNINITIALIZED $NO_MAYBE_UNINITIALIZED])
1345 AC_ARG_WITH([python],
1346 [AS_HELP_STRING([--with-python], [path to python])],
1347 [PYTHON="$withval"])
1349 if test -n "$PYTHON" && test -x "$PYTHON" ; then
1350 AC_MSG_CHECKING([for python])
1351 AC_MSG_RESULT([user defined: $with_python])
1353 if test -n "$PYTHON" ; then
1354 AC_MSG_WARN([specified python ($PYTHON) is not usable, searching path])
1357 AC_PATH_PROG([PYTHON], [python python2 python26],
1358 [AC_MSG_RESULT([not found])
1359 AC_MSG_ERROR([could not find python 2.5 or higher])])
1362 AC_MSG_CHECKING([for python >= 2.5])
1363 ac_python_version=`$PYTHON -c 'import sys; print sys.version.split()[[0]]'`
1364 ac_python_version_major=`echo $ac_python_version | cut -d'.' -f1`
1365 ac_python_version_minor=`echo $ac_python_version | cut -d'.' -f2`
1366 ac_python_version_patch=`echo $ac_python_version | cut -d'.' -f3`
1367 if test "$ac_python_version_major" -eq "2" \
1368 && test "$ac_python_version_minor" -ge "5" ; then
1369 AC_MSG_RESULT([$PYTHON ($ac_python_version)])
1371 AC_MSG_RESULT([not found])
1372 AC_MSG_FAILURE([found python $ac_python_version ($PYTHON); required >= 2.5])
1375 dnl===-----------------------------------------------------------------------===
1377 dnl=== SECTION 5: Check for libraries
1379 dnl===-----------------------------------------------------------------------===
1382 if test "$llvm_cv_os_type" = "MingW" ; then
1383 AC_CHECK_LIB(imagehlp, main)
1384 AC_CHECK_LIB(psapi, main)
1387 dnl dlopen() is required for plugin support.
1388 AC_SEARCH_LIBS(dlopen,dl,AC_DEFINE([HAVE_DLOPEN],[1],
1389 [Define if dlopen() is available on this platform.]),
1390 AC_MSG_WARN([dlopen() not found - disabling plugin support]))
1392 dnl Search for the clock_gettime() function. Note that we rely on the POSIX
1393 dnl macros to detect whether clock_gettime is available, this just finds the
1394 dnl right libraries to link with.
1395 AC_SEARCH_LIBS(clock_gettime,rt)
1397 dnl The curses library is optional; used for querying terminal info
1398 if test "$llvm_cv_enable_terminfo" = "yes" ; then
1399 dnl We need the has_color functionality in curses for it to be useful.
1400 AC_SEARCH_LIBS(setupterm,tinfo terminfo curses ncurses ncursesw,
1401 AC_DEFINE([HAVE_TERMINFO],[1],
1402 [Define if the setupterm() function is supported this platform.]))
1405 dnl libffi is optional; used to call external functions from the interpreter
1406 if test "$llvm_cv_enable_libffi" = "yes" ; then
1407 AC_SEARCH_LIBS(ffi_call,ffi,AC_DEFINE([HAVE_FFI_CALL],[1],
1408 [Define if libffi is available on this platform.]),
1409 AC_MSG_ERROR([libffi not found - configure without --enable-libffi to compile without it]))
1412 dnl mallinfo is optional; the code can compile (minus features) without it
1413 AC_SEARCH_LIBS(mallinfo,malloc,AC_DEFINE([HAVE_MALLINFO],[1],
1414 [Define if mallinfo() is available on this platform.]))
1416 dnl pthread locking functions are optional - but llvm will not be thread-safe
1418 if test "$LLVM_ENABLE_THREADS" -eq 1 && test "$ENABLE_PTHREADS" -eq 1 ; then
1419 AC_CHECK_LIB(pthread, pthread_mutex_init)
1420 AC_SEARCH_LIBS(pthread_mutex_lock,pthread,
1421 AC_DEFINE([HAVE_PTHREAD_MUTEX_LOCK],[1],
1422 [Have pthread_mutex_lock]))
1423 AC_SEARCH_LIBS(pthread_rwlock_init,pthread,
1424 AC_DEFINE([HAVE_PTHREAD_RWLOCK_INIT],[1],
1425 [Have pthread_rwlock_init]))
1426 AC_SEARCH_LIBS(pthread_getspecific,pthread,
1427 AC_DEFINE([HAVE_PTHREAD_GETSPECIFIC],[1],
1428 [Have pthread_getspecific]))
1431 dnl zlib is optional; used for compression/uncompression
1432 if test "$LLVM_ENABLE_ZLIB" -eq 1 ; then
1433 AC_CHECK_LIB(z, compress2)
1436 dnl Allow extra x86-disassembler library
1438 AS_HELP_STRING([--with-udis86=<path>],
1439 [Use udis86 external x86 disassembler library]),
1441 AC_SUBST(USE_UDIS86, [1])
1444 *) LDFLAGS="$LDFLAGS -L${withval}" ;;
1446 AC_CHECK_LIB(udis86, ud_init, [], [
1447 echo "Error! You need to have libudis86 around."
1451 AC_SUBST(USE_UDIS86, [0]))
1452 AC_DEFINE_UNQUOTED([USE_UDIS86],$USE_UDIS86,
1453 [Define if use udis86 library])
1455 dnl Allow OProfile support for JIT output.
1456 AC_ARG_WITH(oprofile,
1457 AS_HELP_STRING([--with-oprofile=<prefix>],
1458 [Tell OProfile >= 0.9.4 how to symbolize JIT output]),
1460 AC_SUBST(USE_OPROFILE, [1])
1462 /usr|yes) llvm_cv_oppath=/usr/lib/oprofile ;;
1464 AC_SUBST(USE_OPROFILE, [0]) ;;
1465 *) llvm_cv_oppath="${withval}/lib/oprofile"
1466 CPPFLAGS="-I${withval}/include";;
1468 case $llvm_cv_os_type in
1470 if test -n "$llvm_cv_oppath" ; then
1471 LIBS="$LIBS -lopagent -L${llvm_cv_oppath} -Wl,-rpath,${llvm_cv_oppath}"
1472 dnl Work around http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=537744:
1473 dnl libbfd is not included properly in libopagent in some Debian
1474 dnl versions. If libbfd isn't found at all, we assume opagent works
1476 AC_SEARCH_LIBS(bfd_init, bfd, [], [])
1477 AC_SEARCH_LIBS(op_open_agent, opagent, [], [
1478 echo "Error! You need to have libopagent around."
1481 AC_CHECK_HEADER([opagent.h], [], [
1482 echo "Error! You need to have opagent.h around."
1487 AC_MSG_ERROR([OProfile support is available on Linux only.]) ;;
1491 AC_SUBST(USE_OPROFILE, [0])
1493 AC_DEFINE_UNQUOTED([LLVM_USE_OPROFILE],$USE_OPROFILE,
1494 [Define if we have the oprofile JIT-support library])
1496 dnl Enable support for Intel JIT Events API.
1497 AC_ARG_WITH(intel-jitevents,
1498 AS_HELP_STRING([--with-intel-jitevents Notify Intel JIT profiling API of generated code]),
1501 yes) AC_SUBST(USE_INTEL_JITEVENTS,[1]);;
1502 no) AC_SUBST(USE_INTEL_JITEVENTS,[0]);;
1503 *) AC_MSG_ERROR([Invalid setting for --with-intel-jitevents. Use "yes" or "no"]);;
1506 case $llvm_cv_os_type in
1507 Linux|Win32|Cygwin|MingW) ;;
1508 *) AC_MSG_ERROR([Intel JIT API support is available on Linux and Windows only.]);;
1511 case "$llvm_cv_target_arch" in
1513 *) AC_MSG_ERROR([Target architecture $llvm_cv_target_arch does not support Intel JIT Events API.]);;
1517 AC_SUBST(USE_INTEL_JITEVENTS, [0])
1519 AC_DEFINE_UNQUOTED([LLVM_USE_INTEL_JITEVENTS],$USE_INTEL_JITEVENTS,
1520 [Define if we have the Intel JIT API runtime support library])
1522 dnl Check for libxml2
1523 dnl Right now we're just checking for the existence, we could also check for a
1524 dnl particular version via --version on xml2-config
1525 AC_CHECK_PROGS(XML2CONFIG, xml2-config)
1527 AC_MSG_CHECKING(for libxml2 includes)
1528 if test "x$XML2CONFIG" = "x"; then
1529 AC_MSG_RESULT(xml2-config not found)
1531 LIBXML2_INC=`$XML2CONFIG --cflags`
1532 AC_MSG_RESULT($LIBXML2_INC)
1533 AC_CHECK_LIB(xml2, xmlReadFile,[AC_DEFINE([CLANG_HAVE_LIBXML],1,[Define if we have libxml2])
1534 LIBXML2_LIBS="-lxml2"])
1536 AC_SUBST(LIBXML2_LIBS)
1537 AC_SUBST(LIBXML2_INC)
1539 dnl===-----------------------------------------------------------------------===
1541 dnl=== SECTION 6: Check for header files
1543 dnl===-----------------------------------------------------------------------===
1545 dnl First, use autoconf provided macros for specific headers that we need
1546 dnl We don't check for ancient stuff or things that are guaranteed to be there
1547 dnl by the C++ standard. We always use the <cfoo> versions of <foo.h> C headers.
1548 dnl Generally we're looking for POSIX headers.
1550 AC_HEADER_MMAP_ANONYMOUS
1556 AC_CHECK_HEADERS([cxxabi.h])
1558 AC_CHECK_HEADERS([dlfcn.h execinfo.h fcntl.h inttypes.h link.h])
1559 AC_CHECK_HEADERS([malloc.h setjmp.h signal.h stdint.h termios.h unistd.h])
1560 AC_CHECK_HEADERS([utime.h])
1561 AC_CHECK_HEADERS([sys/mman.h sys/param.h sys/resource.h sys/time.h sys/uio.h])
1562 AC_CHECK_HEADERS([sys/ioctl.h malloc/malloc.h mach/mach.h])
1563 AC_CHECK_HEADERS([valgrind/valgrind.h])
1564 AC_CHECK_HEADERS([fenv.h])
1565 AC_CHECK_DECLS([FE_ALL_EXCEPT, FE_INEXACT], [], [], [[#include <fenv.h>]])
1566 if test "$LLVM_ENABLE_THREADS" -eq 1 && test "$ENABLE_PTHREADS" -eq 1 ; then
1567 AC_CHECK_HEADERS(pthread.h,
1568 AC_SUBST(HAVE_PTHREAD, 1),
1569 AC_SUBST(HAVE_PTHREAD, 0))
1571 AC_SUBST(HAVE_PTHREAD, 0)
1573 if test "$LLVM_ENABLE_ZLIB" -eq 1 ; then
1574 AC_CHECK_HEADERS(zlib.h,
1575 AC_SUBST(HAVE_LIBZ, 1),
1576 AC_SUBST(HAVE_LIBZ, 0))
1578 AC_SUBST(HAVE_LIBZ, 0)
1581 dnl Try to find ffi.h.
1582 if test "$llvm_cv_enable_libffi" = "yes" ; then
1583 AC_CHECK_HEADERS([ffi.h ffi/ffi.h])
1586 dnl Try to find Darwin specific crash reporting libraries.
1587 AC_CHECK_HEADERS([CrashReporterClient.h])
1589 dnl Try to find Darwin specific crash reporting global.
1590 AC_MSG_CHECKING([__crashreporter_info__])
1594 extern const char *__crashreporter_info__;
1596 __crashreporter_info__ = "test";
1602 AC_MSG_RESULT([yes])
1603 AC_DEFINE([HAVE_CRASHREPORTER_INFO], [1], [can use __crashreporter_info__])
1607 AC_DEFINE([HAVE_CRASHREPORTER_INFO], [0], [can use __crashreporter_info__])
1610 dnl===-----------------------------------------------------------------------===
1612 dnl=== SECTION 7: Check for types and structures
1614 dnl===-----------------------------------------------------------------------===
1619 AC_DEFINE_UNQUOTED([RETSIGTYPE],[void],[Define as the return type of signal handlers (`int' or `void').])
1621 AC_CHECK_TYPES([int64_t],,AC_MSG_ERROR([Type int64_t required but not found]))
1622 AC_CHECK_TYPES([uint64_t],,
1623 AC_CHECK_TYPES([u_int64_t],,
1624 AC_MSG_ERROR([Type uint64_t or u_int64_t required but not found])))
1626 dnl===-----------------------------------------------------------------------===
1628 dnl=== SECTION 8: Check for specific functions needed
1630 dnl===-----------------------------------------------------------------------===
1632 AC_CHECK_FUNCS([backtrace ceilf floorf roundf rintf nearbyintf getcwd ])
1633 AC_CHECK_FUNCS([powf fmodf strtof round ])
1634 AC_CHECK_FUNCS([log log2 log10 exp exp2])
1635 AC_CHECK_FUNCS([getpagesize getrusage getrlimit setrlimit gettimeofday ])
1636 AC_CHECK_FUNCS([isatty mkdtemp mkstemp ])
1637 AC_CHECK_FUNCS([mktemp posix_spawn pread realpath sbrk setrlimit ])
1638 AC_CHECK_FUNCS([strerror strerror_r setenv arc4random ])
1639 AC_CHECK_FUNCS([strtoll strtoq sysconf malloc_zone_statistics ])
1640 AC_CHECK_FUNCS([setjmp longjmp sigsetjmp siglongjmp writev])
1641 AC_CHECK_FUNCS([futimes futimens])
1645 dnl Check the declaration "Secure API" on Windows environments.
1646 AC_CHECK_DECLS([strerror_s])
1648 dnl Check symbols in libgcc.a for JIT on Mingw.
1649 if test "$llvm_cv_os_type" = "MingW" ; then
1650 AC_CHECK_LIB(gcc,_alloca,AC_DEFINE([HAVE__ALLOCA],[1],[Have host's _alloca]))
1651 AC_CHECK_LIB(gcc,__alloca,AC_DEFINE([HAVE___ALLOCA],[1],[Have host's __alloca]))
1652 AC_CHECK_LIB(gcc,__chkstk,AC_DEFINE([HAVE___CHKSTK],[1],[Have host's __chkstk]))
1653 AC_CHECK_LIB(gcc,___chkstk,AC_DEFINE([HAVE____CHKSTK],[1],[Have host's ___chkstk]))
1655 AC_CHECK_LIB(gcc,__ashldi3,AC_DEFINE([HAVE___ASHLDI3],[1],[Have host's __ashldi3]))
1656 AC_CHECK_LIB(gcc,__ashrdi3,AC_DEFINE([HAVE___ASHRDI3],[1],[Have host's __ashrdi3]))
1657 AC_CHECK_LIB(gcc,__divdi3,AC_DEFINE([HAVE___DIVDI3],[1],[Have host's __divdi3]))
1658 AC_CHECK_LIB(gcc,__fixdfdi,AC_DEFINE([HAVE___FIXDFDI],[1],[Have host's __fixdfdi]))
1659 AC_CHECK_LIB(gcc,__fixsfdi,AC_DEFINE([HAVE___FIXSFDI],[1],[Have host's __fixsfdi]))
1660 AC_CHECK_LIB(gcc,__floatdidf,AC_DEFINE([HAVE___FLOATDIDF],[1],[Have host's __floatdidf]))
1661 AC_CHECK_LIB(gcc,__lshrdi3,AC_DEFINE([HAVE___LSHRDI3],[1],[Have host's __lshrdi3]))
1662 AC_CHECK_LIB(gcc,__moddi3,AC_DEFINE([HAVE___MODDI3],[1],[Have host's __moddi3]))
1663 AC_CHECK_LIB(gcc,__udivdi3,AC_DEFINE([HAVE___UDIVDI3],[1],[Have host's __udivdi3]))
1664 AC_CHECK_LIB(gcc,__umoddi3,AC_DEFINE([HAVE___UMODDI3],[1],[Have host's __umoddi3]))
1666 AC_CHECK_LIB(gcc,__main,AC_DEFINE([HAVE___MAIN],[1],[Have host's __main]))
1667 AC_CHECK_LIB(gcc,__cmpdi2,AC_DEFINE([HAVE___CMPDI2],[1],[Have host's __cmpdi2]))
1670 dnl Check Win32 API EnumerateLoadedModules.
1671 if test "$llvm_cv_os_type" = "MingW" ; then
1672 AC_MSG_CHECKING([whether EnumerateLoadedModules() accepts new decl])
1676 #include <windows.h>
1677 #include <imagehlp.h>
1678 extern void foo(PENUMLOADED_MODULES_CALLBACK);
1679 extern void foo(BOOL(CALLBACK*)(PCSTR,ULONG_PTR,ULONG,PVOID));
1683 AC_MSG_RESULT([yes])
1684 llvm_cv_win32_elmcb_pcstr="PCSTR"
1688 llvm_cv_win32_elmcb_pcstr="PSTR"
1690 AC_DEFINE_UNQUOTED([WIN32_ELMCB_PCSTR],$llvm_cv_win32_elmcb_pcstr,[Type of 1st arg on ELM Callback])
1693 dnl Check for variations in the Standard C++ library and STL. These macros are
1694 dnl provided by LLVM in the autoconf/m4 directory.
1698 dnl Check for mmap support.We also need to know if /dev/zero is required to
1699 dnl be opened for allocating RWX memory.
1700 dnl Make sure we aren't attempting to configure for an unknown system
1701 if test "$llvm_cv_platform_type" = "Unix" ; then
1704 AC_NEED_DEV_ZERO_FOR_MMAP
1706 if test "$ac_cv_func_mmap_fixed_mapped" = "no"
1708 AC_MSG_WARN([mmap() of a fixed address required but not supported])
1710 if test "$ac_cv_func_mmap_file" = "no"
1712 AC_MSG_WARN([mmap() of files required but not found])
1716 dnl atomic builtins are required for threading support.
1717 AC_MSG_CHECKING(for GCC atomic builtins)
1718 dnl Since we'll be using these atomic builtins in C++ files we should test
1719 dnl the C++ compiler.
1725 volatile unsigned long val = 1;
1726 __sync_synchronize();
1727 __sync_val_compare_and_swap(&val, 1, 0);
1728 __sync_add_and_fetch(&val, 1);
1729 __sync_sub_and_fetch(&val, 1);
1735 AC_MSG_RESULT([yes])
1736 AC_DEFINE([LLVM_HAS_ATOMICS], [1], [Has gcc/MSVC atomic intrinsics])
1740 AC_DEFINE([LLVM_HAS_ATOMICS], [0], [Has gcc/MSVC atomic intrinsics])
1741 AC_MSG_WARN([LLVM will be built thread-unsafe because atomic builtins are missing])
1745 dnl===-----------------------------------------------------------------------===
1747 dnl=== SECTION 9: Additional checks, variables, etc.
1749 dnl===-----------------------------------------------------------------------===
1751 dnl Handle 32-bit linux systems running a 64-bit kernel.
1752 dnl This has to come after section 4 because it invokes the compiler.
1753 if test "$llvm_cv_os_type" = "Linux" -a "$llvm_cv_target_arch" = "x86_64" ; then
1755 if test "$llvm_cv_linux_mixed" = "yes"; then
1756 llvm_cv_target_arch="x86"
1761 dnl Check whether __dso_handle is present
1762 AC_CHECK_FUNCS([__dso_handle])
1764 dnl Propagate the shared library extension that the libltdl checks did to
1765 dnl the Makefiles so we can use it there too
1766 AC_SUBST(SHLIBEXT,$libltdl_cv_shlibext)
1768 dnl Propagate the run-time library path variable that the libltdl
1769 dnl checks found to the Makefiles so we can use it there too
1770 AC_SUBST(SHLIBPATH_VAR,$libltdl_cv_shlibpath_var)
1772 dnl Translate the various configuration directories and other basic
1773 dnl information into substitutions that will end up in Makefile.config.in
1774 dnl that these configured values can be used by the makefiles
1775 if test "${prefix}" = "NONE" ; then
1778 eval LLVM_PREFIX="${prefix}";
1779 eval LLVM_BINDIR="${prefix}/bin";
1780 eval LLVM_DATADIR="${prefix}/share/llvm";
1781 eval LLVM_DOCSDIR="${prefix}/share/doc/llvm";
1782 eval LLVM_ETCDIR="${prefix}/etc/llvm";
1783 eval LLVM_INCLUDEDIR="${prefix}/include";
1784 eval LLVM_INFODIR="${prefix}/info";
1785 eval LLVM_MANDIR="${prefix}/man";
1786 LLVM_CONFIGTIME=`date`
1787 AC_SUBST(LLVM_PREFIX)
1788 AC_SUBST(LLVM_BINDIR)
1789 AC_SUBST(LLVM_DATADIR)
1790 AC_SUBST(LLVM_DOCSDIR)
1791 AC_SUBST(LLVM_ETCDIR)
1792 AC_SUBST(LLVM_INCLUDEDIR)
1793 AC_SUBST(LLVM_INFODIR)
1794 AC_SUBST(LLVM_MANDIR)
1795 AC_SUBST(LLVM_CONFIGTIME)
1797 dnl Disable embedding timestamps in the build directory, with ENABLE_TIMESTAMPS.
1798 if test "${ENABLE_TIMESTAMPS}" = "0"; then
1799 LLVM_CONFIGTIME="(timestamp not enabled)"
1802 dnl Place the various directories into the config.h file as #defines so that we
1803 dnl can know about the installation paths within LLVM.
1804 AC_DEFINE_UNQUOTED(LLVM_PREFIX,"$LLVM_PREFIX",
1805 [Installation prefix directory])
1806 AC_DEFINE_UNQUOTED(LLVM_BINDIR, "$LLVM_BINDIR",
1807 [Installation directory for binary executables])
1808 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DATADIR",
1809 [Installation directory for data files])
1810 AC_DEFINE_UNQUOTED(LLVM_DOCSDIR, "$LLVM_DOCSDIR",
1811 [Installation directory for documentation])
1812 AC_DEFINE_UNQUOTED(LLVM_ETCDIR, "$LLVM_ETCDIR",
1813 [Installation directory for config files])
1814 AC_DEFINE_UNQUOTED(LLVM_INCLUDEDIR, "$LLVM_INCLUDEDIR",
1815 [Installation directory for include files])
1816 AC_DEFINE_UNQUOTED(LLVM_INFODIR, "$LLVM_INFODIR",
1817 [Installation directory for .info files])
1818 AC_DEFINE_UNQUOTED(LLVM_MANDIR, "$LLVM_MANDIR",
1819 [Installation directory for man pages])
1820 AC_DEFINE_UNQUOTED(LLVM_CONFIGTIME, "$LLVM_CONFIGTIME",
1821 [Time at which LLVM was configured])
1822 AC_DEFINE_UNQUOTED(LLVM_HOST_TRIPLE, "$host",
1823 [Host triple LLVM will be executed on])
1824 AC_DEFINE_UNQUOTED(LLVM_DEFAULT_TARGET_TRIPLE, "$target",
1825 [Target triple LLVM will generate code for by default])
1827 dnl Determine which bindings to build.
1828 if test "$BINDINGS_TO_BUILD" = auto ; then
1829 BINDINGS_TO_BUILD=""
1830 if test "x$OCAMLC" != x -a "x$OCAMLDEP" != x ; then
1831 BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD"
1834 AC_SUBST(BINDINGS_TO_BUILD,$BINDINGS_TO_BUILD)
1836 dnl This isn't really configurey, but it avoids having to repeat the list in
1838 AC_SUBST(ALL_BINDINGS,ocaml)
1840 dnl Do any work necessary to ensure that bindings have what they need.
1841 binding_prereqs_failed=0
1842 for a_binding in $BINDINGS_TO_BUILD ; do
1843 case "$a_binding" in
1845 if test "x$OCAMLC" = x ; then
1846 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlc not found. Try configure OCAMLC=/path/to/ocamlc])
1847 binding_prereqs_failed=1
1849 if test "x$OCAMLDEP" = x ; then
1850 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamldep not found. Try configure OCAMLDEP=/path/to/ocamldep])
1851 binding_prereqs_failed=1
1853 if test "x$OCAMLOPT" = x ; then
1854 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlopt not found. Try configure OCAMLOPT=/path/to/ocamlopt])
1855 dnl ocamlopt is optional!
1857 if test "x$with_ocaml_libdir" != xauto ; then
1858 AC_SUBST(OCAML_LIBDIR,$with_ocaml_libdir)
1860 ocaml_stdlib="`"$OCAMLC" -where`"
1861 if test "$LLVM_PREFIX" '<' "$ocaml_stdlib" -a "$ocaml_stdlib" '<' "$LLVM_PREFIX~"
1863 # ocaml stdlib is beneath our prefix; use stdlib
1864 AC_SUBST(OCAML_LIBDIR,$ocaml_stdlib)
1866 # ocaml stdlib is outside our prefix; use libdir/ocaml
1867 AC_SUBST(OCAML_LIBDIR,${prefix}/lib/ocaml)
1873 if test "$binding_prereqs_failed" = 1 ; then
1874 AC_MSG_ERROR([Prequisites for bindings not satisfied. Fix them or use configure --disable-bindings.])
1877 dnl Determine whether the compiler supports -fvisibility-inlines-hidden.
1878 AC_CXX_USE_VISIBILITY_INLINES_HIDDEN
1880 dnl Determine linker rpath flag
1881 if test "$llvm_cv_link_use_r" = "yes" ; then
1888 dnl Determine linker rdynamic flag
1889 if test "$llvm_cv_link_use_export_dynamic" = "yes" ; then
1890 RDYNAMIC="-rdynamic"
1896 dnl===-----------------------------------------------------------------------===
1898 dnl=== SECTION 10: Specify the output files and generate it
1900 dnl===-----------------------------------------------------------------------===
1902 dnl Configure header files
1903 dnl WARNING: dnl If you add or remove any of the following config headers, then
1904 dnl you MUST also update Makefile so that the variable FilesToConfig
1905 dnl contains the same list of files as AC_CONFIG_HEADERS below. This ensures the
1906 dnl files can be updated automatically when their *.in sources change.
1907 AC_CONFIG_HEADERS([include/llvm/Config/config.h include/llvm/Config/llvm-config.h])
1908 AH_TOP([#ifndef CONFIG_H
1912 AC_CONFIG_FILES([include/llvm/Config/Targets.def])
1913 AC_CONFIG_FILES([include/llvm/Config/AsmPrinters.def])
1914 AC_CONFIG_FILES([include/llvm/Config/AsmParsers.def])
1915 AC_CONFIG_FILES([include/llvm/Config/Disassemblers.def])
1916 AC_CONFIG_HEADERS([include/llvm/Support/DataTypes.h])
1918 dnl Configure the makefile's configuration data
1919 AC_CONFIG_FILES([Makefile.config])
1921 dnl Configure the RPM spec file for LLVM
1922 AC_CONFIG_FILES([llvm.spec])
1924 dnl Configure doxygen's configuration file
1925 AC_CONFIG_FILES([docs/doxygen.cfg])
1927 dnl Configure clang, if present
1928 if test "${clang_src_root}" = ""; then
1929 clang_src_root="$srcdir/tools/clang"
1931 if test -f ${clang_src_root}/README.txt; then
1932 dnl Use variables to stay under 80 columns.
1933 configh="include/clang/Config/config.h"
1934 doxy="docs/doxygen.cfg"
1935 AC_CONFIG_HEADERS([tools/clang/${configh}:${clang_src_root}/${configh}.in])
1936 AC_CONFIG_FILES([tools/clang/${doxy}:${clang_src_root}/${doxy}.in])
1939 dnl OCaml findlib META file
1940 AC_CONFIG_FILES([bindings/ocaml/llvm/META.llvm])
1942 dnl Add --program-prefix value to Makefile.rules. Already an ARG variable.
1943 test "x$program_prefix" = "xNONE" && program_prefix=""
1944 AC_SUBST([program_prefix])
1947 dnl Do special configuration of Makefiles
1948 AC_CONFIG_COMMANDS([setup],,[llvm_src="${srcdir}"])
1949 AC_CONFIG_MAKEFILE(Makefile)
1950 AC_CONFIG_MAKEFILE(Makefile.common)
1951 AC_CONFIG_MAKEFILE(examples/Makefile)
1952 AC_CONFIG_MAKEFILE(lib/Makefile)
1953 AC_CONFIG_MAKEFILE(runtime/Makefile)
1954 AC_CONFIG_MAKEFILE(test/Makefile)
1955 AC_CONFIG_MAKEFILE(test/Makefile.tests)
1956 AC_CONFIG_MAKEFILE(unittests/Makefile)
1957 AC_CONFIG_MAKEFILE(tools/Makefile)
1958 AC_CONFIG_MAKEFILE(utils/Makefile)
1959 AC_CONFIG_MAKEFILE(projects/Makefile)
1960 AC_CONFIG_MAKEFILE(bindings/Makefile)
1961 AC_CONFIG_MAKEFILE(bindings/ocaml/Makefile.ocaml)
1963 dnl Finally, crank out the output