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 support for showing backtraces.
804 AC_ARG_ENABLE(backtraces, AS_HELP_STRING(
805 [--enable-backtraces],
806 [Enable embedding backtraces on crash (default is YES)]),
807 [case "$enableval" in
808 yes) llvm_cv_enable_backtraces="yes" ;;
809 no) llvm_cv_enable_backtraces="no" ;;
810 *) AC_MSG_ERROR([Invalid setting for --enable-backtraces. Use "yes" or "no"]) ;;
812 llvm_cv_enable_backtraces="yes")
813 if test "$llvm_cv_enable_backtraces" = "yes" ; then
814 AC_DEFINE([ENABLE_BACKTRACES],[1],
815 [Define if you want backtraces on crash])
818 dnl Enable installing platform specific signal handling overrides, for improved
819 dnl CrashRecovery support or interaction with crash reporting software. This
820 dnl support may be inappropriate for some clients embedding LLVM as a library.
821 AC_ARG_ENABLE(crash-overrides, AS_HELP_STRING(
822 [--enable-crash-overrides],
823 [Enable crash handling overrides (default is YES)]),
824 [case "$enableval" in
825 yes) llvm_cv_enable_crash_overrides="yes" ;;
826 no) llvm_cv_enable_crash_overrides="no" ;;
827 *) AC_MSG_ERROR([Invalid setting for --enable-crash-overrides. Use "yes" or "no"]) ;;
829 llvm_cv_enable_crash_overrides="yes")
830 if test "$llvm_cv_enable_crash_overrides" = "yes" ; then
831 AC_DEFINE([ENABLE_CRASH_OVERRIDES],[1],
832 [Define to enable crash handling overrides])
835 dnl Allow specific targets to be specified for building (or not)
837 AC_ARG_ENABLE([targets],AS_HELP_STRING([--enable-targets],
838 [Build specific host targets: all or target1,target2,... Valid targets are:
839 host, x86, x86_64, sparc, powerpc, arm, aarch64, mips, hexagon,
840 xcore, msp430, nvptx, systemz, r600, and cpp (default=all)]),,
842 if test "$enableval" = host-only ; then
846 all) TARGETS_TO_BUILD="X86 Sparc PowerPC AArch64 ARM Mips XCore MSP430 CppBackend NVPTX Hexagon SystemZ R600" ;;
847 *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
849 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
850 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
851 sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
852 powerpc) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
853 aarch64) TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
854 arm) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
855 mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
856 mipsel) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
857 mips64) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
858 mips64el) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
859 xcore) TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
860 msp430) TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;;
861 cpp) TARGETS_TO_BUILD="CppBackend $TARGETS_TO_BUILD" ;;
862 hexagon) TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;;
863 nvptx) TARGETS_TO_BUILD="NVPTX $TARGETS_TO_BUILD" ;;
864 systemz) TARGETS_TO_BUILD="SystemZ $TARGETS_TO_BUILD" ;;
865 r600) TARGETS_TO_BUILD="R600 $TARGETS_TO_BUILD" ;;
866 host) case "$llvm_cv_target_arch" in
867 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
868 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
869 Sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
870 PowerPC) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
871 AArch64) TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
872 ARM) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
873 Mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
874 XCore) TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
875 MSP430) TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;;
876 Hexagon) TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;;
877 NVPTX) TARGETS_TO_BUILD="NVPTX $TARGETS_TO_BUILD" ;;
878 SystemZ) TARGETS_TO_BUILD="SystemZ $TARGETS_TO_BUILD" ;;
879 *) AC_MSG_ERROR([Can not set target to build]) ;;
881 *) AC_MSG_ERROR([Unrecognized target $a_target]) ;;
887 AC_ARG_ENABLE([experimental-targets],AS_HELP_STRING([--enable-experimental-targets],
888 [Build experimental host targets: disable or target1,target2,...
889 (default=disable)]),,
892 if test ${enableval} != "disable"
894 TARGETS_TO_BUILD="$enableval $TARGETS_TO_BUILD"
897 AC_SUBST(TARGETS_TO_BUILD,$TARGETS_TO_BUILD)
899 dnl Determine whether we are building LLVM support for the native architecture.
900 dnl If so, define LLVM_NATIVE_ARCH to that LLVM target.
901 for a_target in $TARGETS_TO_BUILD; do
902 if test "$a_target" = "$LLVM_NATIVE_ARCH"; then
903 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ARCH, $LLVM_NATIVE_ARCH,
904 [LLVM architecture name for the native architecture, if available])
905 LLVM_NATIVE_TARGET="LLVMInitialize${LLVM_NATIVE_ARCH}Target"
906 LLVM_NATIVE_TARGETINFO="LLVMInitialize${LLVM_NATIVE_ARCH}TargetInfo"
907 LLVM_NATIVE_TARGETMC="LLVMInitialize${LLVM_NATIVE_ARCH}TargetMC"
908 LLVM_NATIVE_ASMPRINTER="LLVMInitialize${LLVM_NATIVE_ARCH}AsmPrinter"
909 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/Makefile ; then
910 LLVM_NATIVE_ASMPARSER="LLVMInitialize${LLVM_NATIVE_ARCH}AsmParser"
912 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/Makefile ; then
913 LLVM_NATIVE_DISASSEMBLER="LLVMInitialize${LLVM_NATIVE_ARCH}Disassembler"
915 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGET, $LLVM_NATIVE_TARGET,
916 [LLVM name for the native Target init function, if available])
917 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGETINFO, $LLVM_NATIVE_TARGETINFO,
918 [LLVM name for the native TargetInfo init function, if available])
919 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGETMC, $LLVM_NATIVE_TARGETMC,
920 [LLVM name for the native target MC init function, if available])
921 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ASMPRINTER, $LLVM_NATIVE_ASMPRINTER,
922 [LLVM name for the native AsmPrinter init function, if available])
923 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/Makefile ; then
924 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ASMPARSER, $LLVM_NATIVE_ASMPARSER,
925 [LLVM name for the native AsmParser init function, if available])
927 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/Makefile ; then
928 AC_DEFINE_UNQUOTED(LLVM_NATIVE_DISASSEMBLER, $LLVM_NATIVE_DISASSEMBLER,
929 [LLVM name for the native Disassembler init function, if available])
934 dnl Build the LLVM_TARGET and LLVM_... macros for Targets.def and the individual
935 dnl target feature def files.
937 LLVM_ENUM_ASM_PRINTERS=""
938 LLVM_ENUM_ASM_PARSERS=""
939 LLVM_ENUM_DISASSEMBLERS=""
940 for target_to_build in $TARGETS_TO_BUILD; do
941 LLVM_ENUM_TARGETS="LLVM_TARGET($target_to_build) $LLVM_ENUM_TARGETS"
942 if test -f ${srcdir}/lib/Target/${target_to_build}/*AsmPrinter.cpp ; then
943 LLVM_ENUM_ASM_PRINTERS="LLVM_ASM_PRINTER($target_to_build) $LLVM_ENUM_ASM_PRINTERS";
945 if test -f ${srcdir}/lib/Target/${target_to_build}/AsmParser/Makefile ; then
946 LLVM_ENUM_ASM_PARSERS="LLVM_ASM_PARSER($target_to_build) $LLVM_ENUM_ASM_PARSERS";
948 if test -f ${srcdir}/lib/Target/${target_to_build}/Disassembler/Makefile ; then
949 LLVM_ENUM_DISASSEMBLERS="LLVM_DISASSEMBLER($target_to_build) $LLVM_ENUM_DISASSEMBLERS";
952 AC_SUBST(LLVM_ENUM_TARGETS)
953 AC_SUBST(LLVM_ENUM_ASM_PRINTERS)
954 AC_SUBST(LLVM_ENUM_ASM_PARSERS)
955 AC_SUBST(LLVM_ENUM_DISASSEMBLERS)
957 dnl Override the option to use for optimized builds.
958 AC_ARG_WITH(optimize-option,
959 AS_HELP_STRING([--with-optimize-option],
960 [Select the compiler options to use for optimized builds]),,
962 AC_MSG_CHECKING([optimization flags])
965 case "$llvm_cv_os_type" in
966 FreeBSD) optimize_option=-O2 ;;
967 MingW) optimize_option=-O2 ;;
968 *) optimize_option=-O3 ;;
970 *) optimize_option="$withval" ;;
972 AC_SUBST(OPTIMIZE_OPTION,$optimize_option)
973 AC_MSG_RESULT([$optimize_option])
975 dnl Specify extra build options
976 AC_ARG_WITH(extra-options,
977 AS_HELP_STRING([--with-extra-options],
978 [Specify additional options to compile LLVM with]),,
981 default) EXTRA_OPTIONS= ;;
982 *) EXTRA_OPTIONS=$withval ;;
984 AC_SUBST(EXTRA_OPTIONS,$EXTRA_OPTIONS)
986 dnl Specify extra linker build options
987 AC_ARG_WITH(extra-ld-options,
988 AS_HELP_STRING([--with-extra-ld-options],
989 [Specify additional options to link LLVM with]),,
992 default) EXTRA_LD_OPTIONS= ;;
993 *) EXTRA_LD_OPTIONS=$withval ;;
995 AC_SUBST(EXTRA_LD_OPTIONS,$EXTRA_LD_OPTIONS)
997 dnl Allow specific bindings to be specified for building (or not)
998 AC_ARG_ENABLE([bindings],AS_HELP_STRING([--enable-bindings],
999 [Build specific language bindings: all,auto,none,{binding-name} (default=auto)]),,
1001 BINDINGS_TO_BUILD=""
1002 case "$enableval" in
1003 yes | default | auto) BINDINGS_TO_BUILD="auto" ;;
1004 all ) BINDINGS_TO_BUILD="ocaml" ;;
1005 none | no) BINDINGS_TO_BUILD="" ;;
1006 *)for a_binding in `echo $enableval|sed -e 's/,/ /g' ` ; do
1007 case "$a_binding" in
1008 ocaml) BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD" ;;
1009 *) AC_MSG_ERROR([Unrecognized binding $a_binding]) ;;
1015 dnl Allow the ocaml libdir to be overridden. This could go in a configure
1016 dnl script for bindings/ocaml/configure, except that its auto value depends on
1017 dnl OCAMLC, which is found here to support tests.
1018 AC_ARG_WITH([ocaml-libdir],
1019 [AS_HELP_STRING([--with-ocaml-libdir],
1020 [Specify install location for ocaml bindings (default is stdlib)])],
1024 auto) with_ocaml_libdir="$withval" ;;
1025 /* | [[A-Za-z]]:[[\\/]]*) with_ocaml_libdir="$withval" ;;
1026 *) AC_MSG_ERROR([Invalid path for --with-ocaml-libdir. Provide full path]) ;;
1029 AC_ARG_WITH(clang-srcdir,
1030 AS_HELP_STRING([--with-clang-srcdir],
1031 [Directory to the out-of-tree Clang source]),,
1034 -) clang_src_root="" ;;
1035 /* | [[A-Za-z]]:[[\\/]]*) clang_src_root="$withval" ;;
1036 *) clang_src_root="$ac_pwd/$withval" ;;
1038 AC_SUBST(CLANG_SRC_ROOT,[$clang_src_root])
1040 AC_ARG_WITH(clang-resource-dir,
1041 AS_HELP_STRING([--with-clang-resource-dir],
1042 [Relative directory from the Clang binary for resource files]),,
1044 AC_DEFINE_UNQUOTED(CLANG_RESOURCE_DIR,"$withval",
1045 [Relative directory for resource files])
1047 AC_ARG_WITH(c-include-dirs,
1048 AS_HELP_STRING([--with-c-include-dirs],
1049 [Colon separated list of directories clang will search for headers]),,
1051 AC_DEFINE_UNQUOTED(C_INCLUDE_DIRS,"$withval",
1052 [Directories clang will search for headers])
1054 # Clang normally uses the system c++ headers and libraries. With this option,
1055 # clang will use the ones provided by a gcc installation instead. This option should
1056 # be passed the same value that was used with --prefix when configuring gcc.
1057 AC_ARG_WITH(gcc-toolchain,
1058 AS_HELP_STRING([--with-gcc-toolchain],
1059 [Directory where gcc is installed.]),,
1061 AC_DEFINE_UNQUOTED(GCC_INSTALL_PREFIX,"$withval",
1062 [Directory where gcc is installed.])
1064 AC_ARG_WITH(default-sysroot,
1065 AS_HELP_STRING([--with-default-sysroot],
1066 [Add --sysroot=<path> to all compiler invocations.]),,
1068 AC_DEFINE_UNQUOTED(DEFAULT_SYSROOT,"$withval",
1069 [Default <path> to all compiler invocations for --sysroot=<path>.])
1071 dnl Allow linking of LLVM with GPLv3 binutils code.
1072 AC_ARG_WITH(binutils-include,
1073 AS_HELP_STRING([--with-binutils-include],
1074 [Specify path to binutils/include/ containing plugin-api.h file for gold plugin.]),,
1077 default) WITH_BINUTILS_INCDIR=default ;;
1078 /* | [[A-Za-z]]:[[\\/]]*) WITH_BINUTILS_INCDIR=$withval ;;
1079 *) AC_MSG_ERROR([Invalid path for --with-binutils-include. Provide full path]) ;;
1081 if test "x$WITH_BINUTILS_INCDIR" != xdefault ; then
1082 AC_SUBST(BINUTILS_INCDIR,$WITH_BINUTILS_INCDIR)
1083 if test ! -f "$WITH_BINUTILS_INCDIR/plugin-api.h"; then
1084 echo "$WITH_BINUTILS_INCDIR/plugin-api.h"
1085 AC_MSG_ERROR([Invalid path to directory containing plugin-api.h.]);
1089 dnl Specify the URL where bug reports should be submitted.
1090 AC_ARG_WITH(bug-report-url,
1091 AS_HELP_STRING([--with-bug-report-url],
1092 [Specify the URL where bug reports should be submitted (default=http://llvm.org/bugs/)]),,
1093 withval="http://llvm.org/bugs/")
1094 AC_DEFINE_UNQUOTED(BUG_REPORT_URL,"$withval",
1097 dnl --enable-terminfo: check whether the user wants to control use of terminfo:
1098 AC_ARG_ENABLE(terminfo,AS_HELP_STRING(
1099 [--enable-terminfo],
1100 [Query the terminfo database if available (default is YES)]),
1101 [case "$enableval" in
1102 yes) llvm_cv_enable_terminfo="yes" ;;
1103 no) llvm_cv_enable_terminfo="no" ;;
1104 *) AC_MSG_ERROR([Invalid setting for --enable-terminfo. Use "yes" or "no"]) ;;
1106 llvm_cv_enable_terminfo="yes")
1108 dnl --enable-libffi : check whether the user wants to turn off libffi:
1109 AC_ARG_ENABLE(libffi,AS_HELP_STRING(
1110 --enable-libffi,[Check for the presence of libffi (default is NO)]),
1111 [case "$enableval" in
1112 yes) llvm_cv_enable_libffi="yes" ;;
1113 no) llvm_cv_enable_libffi="no" ;;
1114 *) AC_MSG_ERROR([Invalid setting for --enable-libffi. Use "yes" or "no"]) ;;
1116 llvm_cv_enable_libffi=no)
1118 AC_ARG_WITH(internal-prefix,
1119 AS_HELP_STRING([--with-internal-prefix],
1120 [Installation directory for internal files]),,
1122 AC_SUBST(INTERNAL_PREFIX,[$withval])
1124 dnl===-----------------------------------------------------------------------===
1126 dnl=== SECTION 4: Check for programs we need and that they are the right version
1128 dnl===-----------------------------------------------------------------------===
1133 dnl Check for the tools that the makefiles require
1136 AC_PATH_PROG(CMP, [cmp], [cmp])
1137 AC_PATH_PROG(CP, [cp], [cp])
1138 AC_PATH_PROG(DATE, [date], [date])
1139 AC_PATH_PROG(FIND, [find], [find])
1140 AC_PATH_PROG(GREP, [grep], [grep])
1141 AC_PATH_PROG(MKDIR,[mkdir],[mkdir])
1142 AC_PATH_PROG(MV, [mv], [mv])
1144 AC_CHECK_TOOL(AR, ar, false)
1145 AC_PATH_PROG(RM, [rm], [rm])
1146 AC_PATH_PROG(SED, [sed], [sed])
1147 AC_PATH_PROG(TAR, [tar], [gtar])
1148 AC_PATH_PROG(BINPWD,[pwd], [pwd])
1150 dnl Looking for misc. graph plotting software
1151 AC_PATH_PROG(GRAPHVIZ, [Graphviz], [echo Graphviz])
1152 if test "$GRAPHVIZ" != "echo Graphviz" ; then
1153 AC_DEFINE([HAVE_GRAPHVIZ],[1],[Define if the Graphviz program is available])
1154 dnl If we're targeting for mingw we should emit windows paths, not msys
1155 if test "$llvm_cv_os_type" = "MingW" ; then
1156 GRAPHVIZ=`echo $GRAPHVIZ | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1158 AC_DEFINE_UNQUOTED([LLVM_PATH_GRAPHVIZ],"$GRAPHVIZ${EXEEXT}",
1159 [Define to path to Graphviz program if found or 'echo Graphviz' otherwise])
1161 AC_PATH_PROG(DOT, [dot], [echo dot])
1162 if test "$DOT" != "echo dot" ; then
1163 AC_DEFINE([HAVE_DOT],[1],[Define if the dot program is available])
1164 dnl If we're targeting for mingw we should emit windows paths, not msys
1165 if test "$llvm_cv_os_type" = "MingW" ; then
1166 DOT=`echo $DOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1168 AC_DEFINE_UNQUOTED([LLVM_PATH_DOT],"$DOT${EXEEXT}",
1169 [Define to path to dot program if found or 'echo dot' otherwise])
1171 AC_PATH_PROG(FDP, [fdp], [echo fdp])
1172 if test "$FDP" != "echo fdp" ; then
1173 AC_DEFINE([HAVE_FDP],[1],[Define if the neat program is available])
1174 dnl If we're targeting for mingw we should emit windows paths, not msys
1175 if test "$llvm_cv_os_type" = "MingW" ; then
1176 FDP=`echo $FDP | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1178 AC_DEFINE_UNQUOTED([LLVM_PATH_FDP],"$FDP${EXEEXT}",
1179 [Define to path to fdp program if found or 'echo fdp' otherwise])
1181 AC_PATH_PROG(NEATO, [neato], [echo neato])
1182 if test "$NEATO" != "echo neato" ; then
1183 AC_DEFINE([HAVE_NEATO],[1],[Define if the neat program is available])
1184 dnl If we're targeting for mingw we should emit windows paths, not msys
1185 if test "$llvm_cv_os_type" = "MingW" ; then
1186 NEATO=`echo $NEATO | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1188 AC_DEFINE_UNQUOTED([LLVM_PATH_NEATO],"$NEATO${EXEEXT}",
1189 [Define to path to neato program if found or 'echo neato' otherwise])
1191 AC_PATH_PROG(TWOPI, [twopi], [echo twopi])
1192 if test "$TWOPI" != "echo twopi" ; then
1193 AC_DEFINE([HAVE_TWOPI],[1],[Define if the neat program is available])
1194 dnl If we're targeting for mingw we should emit windows paths, not msys
1195 if test "$llvm_cv_os_type" = "MingW" ; then
1196 TWOPI=`echo $TWOPI | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1198 AC_DEFINE_UNQUOTED([LLVM_PATH_TWOPI],"$TWOPI${EXEEXT}",
1199 [Define to path to twopi program if found or 'echo twopi' otherwise])
1201 AC_PATH_PROG(CIRCO, [circo], [echo circo])
1202 if test "$CIRCO" != "echo circo" ; then
1203 AC_DEFINE([HAVE_CIRCO],[1],[Define if the neat program is available])
1204 dnl If we're targeting for mingw we should emit windows paths, not msys
1205 if test "$llvm_cv_os_type" = "MingW" ; then
1206 CIRCO=`echo $CIRCO | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1208 AC_DEFINE_UNQUOTED([LLVM_PATH_CIRCO],"$CIRCO${EXEEXT}",
1209 [Define to path to circo program if found or 'echo circo' otherwise])
1211 AC_PATH_PROGS(GV, [gv gsview32], [echo gv])
1212 if test "$GV" != "echo gv" ; then
1213 AC_DEFINE([HAVE_GV],[1],[Define if the gv program is available])
1214 dnl If we're targeting for mingw we should emit windows paths, not msys
1215 if test "$llvm_cv_os_type" = "MingW" ; then
1216 GV=`echo $GV | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1218 AC_DEFINE_UNQUOTED([LLVM_PATH_GV],"$GV${EXEEXT}",
1219 [Define to path to gv program if found or 'echo gv' otherwise])
1221 AC_PATH_PROG(DOTTY, [dotty], [echo dotty])
1222 if test "$DOTTY" != "echo dotty" ; then
1223 AC_DEFINE([HAVE_DOTTY],[1],[Define if the dotty program is available])
1224 dnl If we're targeting for mingw we should emit windows paths, not msys
1225 if test "$llvm_cv_os_type" = "MingW" ; then
1226 DOTTY=`echo $DOTTY | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1228 AC_DEFINE_UNQUOTED([LLVM_PATH_DOTTY],"$DOTTY${EXEEXT}",
1229 [Define to path to dotty program if found or 'echo dotty' otherwise])
1231 AC_PATH_PROGS(XDOT, [xdot xdot.py], [echo xdot])
1232 if test "$XDOT" != "echo xdot" ; then
1233 AC_DEFINE([HAVE_XDOT],[1],[Define if the xdot program is available])
1234 dnl If we're targeting for mingw we should emit windows paths, not msys
1235 if test "$llvm_cv_os_type" = "MingW" ; then
1236 XDOT=`echo $XDOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1238 AC_DEFINE_UNQUOTED([LLVM_PATH_XDOT],"$XDOT${EXEEXT}",
1239 [Define to path to xdot program if found or 'echo xdot' otherwise])
1242 dnl Find the install program
1244 dnl Prepend src dir to install path dir if it's a relative path
1245 dnl This is a hack for installs that take place in something other
1246 dnl than the top level.
1248 [[\\/$]]* | ?:[[\\/]]* ) ;;
1249 *) INSTALL="\\\$(TOPSRCDIR)/$INSTALL" ;;
1252 dnl Checks for documentation and testing tools that we can do without. If these
1253 dnl are not found then they are set to "true" which always succeeds but does
1254 dnl nothing. This just lets the build output show that we could have done
1255 dnl something if the tool was available.
1256 AC_PATH_PROG(BZIP2, [bzip2])
1257 AC_PATH_PROG(CAT, [cat])
1258 AC_PATH_PROG(DOXYGEN, [doxygen])
1259 AC_PATH_PROG(GROFF, [groff])
1260 AC_PATH_PROG(GZIPBIN, [gzip])
1261 AC_PATH_PROG(PDFROFF, [pdfroff])
1262 AC_PATH_PROG(ZIP, [zip])
1263 AC_PATH_PROGS(OCAMLC, [ocamlc])
1264 AC_PATH_PROGS(OCAMLOPT, [ocamlopt])
1265 AC_PATH_PROGS(OCAMLDEP, [ocamldep])
1266 AC_PATH_PROGS(OCAMLDOC, [ocamldoc])
1267 AC_PATH_PROGS(GAS, [gas as])
1269 dnl Get the version of the linker in use.
1272 dnl Determine whether the linker supports the -R option.
1275 dnl Determine whether the compiler supports the -rdynamic option.
1276 AC_LINK_EXPORT_DYNAMIC
1278 dnl Determine whether the linker supports the --version-script option.
1279 AC_LINK_VERSION_SCRIPT
1281 dnl Check for libtool and the library that has dlopen function (which must come
1282 dnl before the AC_PROG_LIBTOOL check in order to enable dlopening libraries with
1287 AC_MSG_CHECKING([tool compatibility])
1289 dnl Ensure that compilation tools are GCC or a GNU compatible compiler such as
1290 dnl ICC; we use GCC specific options in the makefiles so the compiler needs
1291 dnl to support those options.
1292 dnl "icc" emits gcc signatures
1293 dnl "icc -no-gcc" emits no gcc signature BUT is still compatible
1305 if test "$GCC" != "yes" && test "$ICC" != "yes"
1307 AC_MSG_ERROR([gcc|icc required but not found])
1310 dnl Ensure that compilation tools are compatible with GCC extensions
1311 if test "$GXX" != "yes" && test "$IXX" != "yes"
1313 AC_MSG_ERROR([g++|clang++|icc required but not found])
1316 dnl Verify that GCC is version 3.0 or higher
1317 if test "$GCC" = "yes"
1322 #if !defined(__GNUC__) || __GNUC__ < 3
1323 #error Unsupported GCC version
1327 [], [AC_MSG_ERROR([gcc 3.x required, but you have a lower version])])
1330 dnl Check for GNU Make. We use its extensions, so don't build without it
1331 if test -z "$llvm_cv_gnu_make_command"
1333 AC_MSG_ERROR([GNU Make required but not found])
1336 dnl Tool compatibility is okay if we make it here.
1339 dnl Check optional compiler flags.
1340 AC_MSG_CHECKING([optional compiler flags])
1341 CXX_FLAG_CHECK(NO_VARIADIC_MACROS, [-Wno-variadic-macros])
1342 CXX_FLAG_CHECK(NO_MISSING_FIELD_INITIALIZERS, [-Wno-missing-field-initializers])
1343 CXX_FLAG_CHECK(COVERED_SWITCH_DEFAULT, [-Wcovered-switch-default])
1345 dnl GCC's potential uninitialized use analysis is weak and presents lots of
1346 dnl false positives, so disable it.
1348 NO_MAYBE_UNINITIALIZED=
1349 if test "$GXX" = "yes"
1351 CXX_FLAG_CHECK(NO_MAYBE_UNINITIALIZED, [-Wno-maybe-uninitialized])
1352 dnl gcc 4.7 introduced -Wmaybe-uninitialized to distinguish cases which are
1353 dnl known to be uninitialized from cases which might be uninitialized. We
1354 dnl still want to catch the first kind of errors.
1355 if test -z "$NO_MAYBE_UNINITIALIZED"
1357 CXX_FLAG_CHECK(NO_UNINITIALIZED, [-Wno-uninitialized])
1360 AC_MSG_RESULT([$NO_VARIADIC_MACROS $NO_MISSING_FIELD_INITIALIZERS $COVERED_SWITCH_DEFAULT $NO_UNINITIALIZED $NO_MAYBE_UNINITIALIZED])
1362 AC_ARG_WITH([python],
1363 [AS_HELP_STRING([--with-python], [path to python])],
1364 [PYTHON="$withval"])
1366 if test -n "$PYTHON" && test -x "$PYTHON" ; then
1367 AC_MSG_CHECKING([for python])
1368 AC_MSG_RESULT([user defined: $with_python])
1370 if test -n "$PYTHON" ; then
1371 AC_MSG_WARN([specified python ($PYTHON) is not usable, searching path])
1374 AC_PATH_PROG([PYTHON], [python python2 python26],
1375 [AC_MSG_RESULT([not found])
1376 AC_MSG_ERROR([could not find python 2.5 or higher])])
1379 AC_MSG_CHECKING([for python >= 2.5])
1380 ac_python_version=`$PYTHON -c 'import sys; print sys.version.split()[[0]]'`
1381 ac_python_version_major=`echo $ac_python_version | cut -d'.' -f1`
1382 ac_python_version_minor=`echo $ac_python_version | cut -d'.' -f2`
1383 ac_python_version_patch=`echo $ac_python_version | cut -d'.' -f3`
1384 if test "$ac_python_version_major" -eq "2" \
1385 && test "$ac_python_version_minor" -ge "5" ; then
1386 AC_MSG_RESULT([$PYTHON ($ac_python_version)])
1388 AC_MSG_RESULT([not found])
1389 AC_MSG_FAILURE([found python $ac_python_version ($PYTHON); required >= 2.5])
1392 dnl===-----------------------------------------------------------------------===
1394 dnl=== SECTION 5: Check for libraries
1396 dnl===-----------------------------------------------------------------------===
1399 if test "$llvm_cv_os_type" = "MingW" ; then
1400 AC_CHECK_LIB(imagehlp, main)
1401 AC_CHECK_LIB(psapi, main)
1402 AC_CHECK_LIB(shell32, main)
1405 dnl dlopen() is required for plugin support.
1406 AC_SEARCH_LIBS(dlopen,dl,AC_DEFINE([HAVE_DLOPEN],[1],
1407 [Define if dlopen() is available on this platform.]),
1408 AC_MSG_WARN([dlopen() not found - disabling plugin support]))
1410 dnl Search for the clock_gettime() function. Note that we rely on the POSIX
1411 dnl macros to detect whether clock_gettime is available, this just finds the
1412 dnl right libraries to link with.
1413 AC_SEARCH_LIBS(clock_gettime,rt)
1415 dnl The curses library is optional; used for querying terminal info
1416 if test "$llvm_cv_enable_terminfo" = "yes" ; then
1417 dnl We need the has_color functionality in curses for it to be useful.
1418 AC_SEARCH_LIBS(setupterm,tinfo terminfo curses ncurses ncursesw,
1419 AC_DEFINE([HAVE_TERMINFO],[1],
1420 [Define if the setupterm() function is supported this platform.]))
1423 dnl libffi is optional; used to call external functions from the interpreter
1424 if test "$llvm_cv_enable_libffi" = "yes" ; then
1425 AC_SEARCH_LIBS(ffi_call,ffi,AC_DEFINE([HAVE_FFI_CALL],[1],
1426 [Define if libffi is available on this platform.]),
1427 AC_MSG_ERROR([libffi not found - configure without --enable-libffi to compile without it]))
1430 dnl mallinfo is optional; the code can compile (minus features) without it
1431 AC_SEARCH_LIBS(mallinfo,malloc,AC_DEFINE([HAVE_MALLINFO],[1],
1432 [Define if mallinfo() is available on this platform.]))
1434 dnl pthread locking functions are optional - but llvm will not be thread-safe
1436 if test "$LLVM_ENABLE_THREADS" -eq 1 && test "$ENABLE_PTHREADS" -eq 1 ; then
1437 AC_CHECK_LIB(pthread, pthread_mutex_init)
1438 AC_SEARCH_LIBS(pthread_mutex_lock,pthread,
1439 AC_DEFINE([HAVE_PTHREAD_MUTEX_LOCK],[1],
1440 [Have pthread_mutex_lock]))
1441 AC_SEARCH_LIBS(pthread_rwlock_init,pthread,
1442 AC_DEFINE([HAVE_PTHREAD_RWLOCK_INIT],[1],
1443 [Have pthread_rwlock_init]))
1444 AC_SEARCH_LIBS(pthread_getspecific,pthread,
1445 AC_DEFINE([HAVE_PTHREAD_GETSPECIFIC],[1],
1446 [Have pthread_getspecific]))
1449 dnl zlib is optional; used for compression/uncompression
1450 if test "$LLVM_ENABLE_ZLIB" -eq 1 ; then
1451 AC_CHECK_LIB(z, compress2)
1454 dnl Allow extra x86-disassembler library
1456 AS_HELP_STRING([--with-udis86=<path>],
1457 [Use udis86 external x86 disassembler library]),
1459 AC_SUBST(USE_UDIS86, [1])
1462 *) LDFLAGS="$LDFLAGS -L${withval}" ;;
1464 AC_CHECK_LIB(udis86, ud_init, [], [
1465 echo "Error! You need to have libudis86 around."
1469 AC_SUBST(USE_UDIS86, [0]))
1470 AC_DEFINE_UNQUOTED([USE_UDIS86],$USE_UDIS86,
1471 [Define if use udis86 library])
1473 dnl Allow OProfile support for JIT output.
1474 AC_ARG_WITH(oprofile,
1475 AS_HELP_STRING([--with-oprofile=<prefix>],
1476 [Tell OProfile >= 0.9.4 how to symbolize JIT output]),
1478 AC_SUBST(USE_OPROFILE, [1])
1480 /usr|yes) llvm_cv_oppath=/usr/lib/oprofile ;;
1482 AC_SUBST(USE_OPROFILE, [0]) ;;
1483 *) llvm_cv_oppath="${withval}/lib/oprofile"
1484 CPPFLAGS="-I${withval}/include";;
1486 case $llvm_cv_os_type in
1488 if test -n "$llvm_cv_oppath" ; then
1489 LIBS="$LIBS -lopagent -L${llvm_cv_oppath} -Wl,-rpath,${llvm_cv_oppath}"
1490 dnl Work around http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=537744:
1491 dnl libbfd is not included properly in libopagent in some Debian
1492 dnl versions. If libbfd isn't found at all, we assume opagent works
1494 AC_SEARCH_LIBS(bfd_init, bfd, [], [])
1495 AC_SEARCH_LIBS(op_open_agent, opagent, [], [
1496 echo "Error! You need to have libopagent around."
1499 AC_CHECK_HEADER([opagent.h], [], [
1500 echo "Error! You need to have opagent.h around."
1505 AC_MSG_ERROR([OProfile support is available on Linux only.]) ;;
1509 AC_SUBST(USE_OPROFILE, [0])
1511 AC_DEFINE_UNQUOTED([LLVM_USE_OPROFILE],$USE_OPROFILE,
1512 [Define if we have the oprofile JIT-support library])
1514 dnl Enable support for Intel JIT Events API.
1515 AC_ARG_WITH(intel-jitevents,
1516 AS_HELP_STRING([--with-intel-jitevents Notify Intel JIT profiling API of generated code]),
1519 yes) AC_SUBST(USE_INTEL_JITEVENTS,[1]);;
1520 no) AC_SUBST(USE_INTEL_JITEVENTS,[0]);;
1521 *) AC_MSG_ERROR([Invalid setting for --with-intel-jitevents. Use "yes" or "no"]);;
1524 case $llvm_cv_os_type in
1525 Linux|Win32|Cygwin|MingW) ;;
1526 *) AC_MSG_ERROR([Intel JIT API support is available on Linux and Windows only.]);;
1529 case "$llvm_cv_target_arch" in
1531 *) AC_MSG_ERROR([Target architecture $llvm_cv_target_arch does not support Intel JIT Events API.]);;
1535 AC_SUBST(USE_INTEL_JITEVENTS, [0])
1537 AC_DEFINE_UNQUOTED([LLVM_USE_INTEL_JITEVENTS],$USE_INTEL_JITEVENTS,
1538 [Define if we have the Intel JIT API runtime support library])
1540 dnl Check for libxml2
1541 dnl Right now we're just checking for the existence, we could also check for a
1542 dnl particular version via --version on xml2-config
1543 AC_CHECK_PROGS(XML2CONFIG, xml2-config)
1545 AC_MSG_CHECKING(for libxml2 includes)
1546 if test "x$XML2CONFIG" = "x"; then
1547 AC_MSG_RESULT(xml2-config not found)
1549 LIBXML2_INC=`$XML2CONFIG --cflags`
1550 AC_MSG_RESULT($LIBXML2_INC)
1551 AC_CHECK_LIB(xml2, xmlReadFile,[AC_DEFINE([CLANG_HAVE_LIBXML],1,[Define if we have libxml2])
1552 LIBXML2_LIBS="-lxml2"])
1554 AC_SUBST(LIBXML2_LIBS)
1555 AC_SUBST(LIBXML2_INC)
1557 dnl===-----------------------------------------------------------------------===
1559 dnl=== SECTION 6: Check for header files
1561 dnl===-----------------------------------------------------------------------===
1563 dnl First, use autoconf provided macros for specific headers that we need
1564 dnl We don't check for ancient stuff or things that are guaranteed to be there
1565 dnl by the C++ standard. We always use the <cfoo> versions of <foo.h> C headers.
1566 dnl Generally we're looking for POSIX headers.
1568 AC_HEADER_MMAP_ANONYMOUS
1574 AC_CHECK_HEADERS([cxxabi.h])
1576 AC_CHECK_HEADERS([dlfcn.h execinfo.h fcntl.h inttypes.h link.h])
1577 AC_CHECK_HEADERS([malloc.h setjmp.h signal.h stdint.h termios.h unistd.h])
1578 AC_CHECK_HEADERS([utime.h])
1579 AC_CHECK_HEADERS([sys/mman.h sys/param.h sys/resource.h sys/time.h sys/uio.h])
1580 AC_CHECK_HEADERS([sys/ioctl.h malloc/malloc.h mach/mach.h])
1581 AC_CHECK_HEADERS([valgrind/valgrind.h])
1582 AC_CHECK_HEADERS([fenv.h])
1583 AC_CHECK_DECLS([FE_ALL_EXCEPT, FE_INEXACT], [], [], [[#include <fenv.h>]])
1584 if test "$LLVM_ENABLE_THREADS" -eq 1 && test "$ENABLE_PTHREADS" -eq 1 ; then
1585 AC_CHECK_HEADERS(pthread.h,
1586 AC_SUBST(HAVE_PTHREAD, 1),
1587 AC_SUBST(HAVE_PTHREAD, 0))
1589 AC_SUBST(HAVE_PTHREAD, 0)
1591 if test "$LLVM_ENABLE_ZLIB" -eq 1 ; then
1592 AC_CHECK_HEADERS(zlib.h,
1593 AC_SUBST(HAVE_LIBZ, 1),
1594 AC_SUBST(HAVE_LIBZ, 0))
1596 AC_SUBST(HAVE_LIBZ, 0)
1599 dnl Try to find ffi.h.
1600 if test "$llvm_cv_enable_libffi" = "yes" ; then
1601 AC_CHECK_HEADERS([ffi.h ffi/ffi.h])
1604 dnl Try to find Darwin specific crash reporting libraries.
1605 AC_CHECK_HEADERS([CrashReporterClient.h])
1607 dnl Try to find Darwin specific crash reporting global.
1608 AC_MSG_CHECKING([__crashreporter_info__])
1612 extern const char *__crashreporter_info__;
1614 __crashreporter_info__ = "test";
1620 AC_MSG_RESULT([yes])
1621 AC_DEFINE([HAVE_CRASHREPORTER_INFO], [1], [can use __crashreporter_info__])
1625 AC_DEFINE([HAVE_CRASHREPORTER_INFO], [0], [can use __crashreporter_info__])
1628 dnl===-----------------------------------------------------------------------===
1630 dnl=== SECTION 7: Check for types and structures
1632 dnl===-----------------------------------------------------------------------===
1637 AC_DEFINE_UNQUOTED([RETSIGTYPE],[void],[Define as the return type of signal handlers (`int' or `void').])
1639 AC_CHECK_TYPES([int64_t],,AC_MSG_ERROR([Type int64_t required but not found]))
1640 AC_CHECK_TYPES([uint64_t],,
1641 AC_CHECK_TYPES([u_int64_t],,
1642 AC_MSG_ERROR([Type uint64_t or u_int64_t required but not found])))
1644 dnl===-----------------------------------------------------------------------===
1646 dnl=== SECTION 8: Check for specific functions needed
1648 dnl===-----------------------------------------------------------------------===
1650 AC_CHECK_FUNCS([backtrace ceilf floorf roundf rintf nearbyintf getcwd ])
1651 AC_CHECK_FUNCS([powf fmodf strtof round ])
1652 AC_CHECK_FUNCS([log log2 log10 exp exp2])
1653 AC_CHECK_FUNCS([getpagesize getrusage getrlimit setrlimit gettimeofday ])
1654 AC_CHECK_FUNCS([isatty mkdtemp mkstemp ])
1655 AC_CHECK_FUNCS([mktemp posix_spawn pread realpath sbrk setrlimit ])
1656 AC_CHECK_FUNCS([strerror strerror_r setenv arc4random ])
1657 AC_CHECK_FUNCS([strtoll strtoq sysconf malloc_zone_statistics ])
1658 AC_CHECK_FUNCS([setjmp longjmp sigsetjmp siglongjmp writev])
1659 AC_CHECK_FUNCS([futimes futimens])
1663 dnl Check the declaration "Secure API" on Windows environments.
1664 AC_CHECK_DECLS([strerror_s])
1666 dnl Check symbols in libgcc.a for JIT on Mingw.
1667 if test "$llvm_cv_os_type" = "MingW" ; then
1668 AC_CHECK_LIB(gcc,_alloca,AC_DEFINE([HAVE__ALLOCA],[1],[Have host's _alloca]))
1669 AC_CHECK_LIB(gcc,__alloca,AC_DEFINE([HAVE___ALLOCA],[1],[Have host's __alloca]))
1670 AC_CHECK_LIB(gcc,__chkstk,AC_DEFINE([HAVE___CHKSTK],[1],[Have host's __chkstk]))
1671 AC_CHECK_LIB(gcc,___chkstk,AC_DEFINE([HAVE____CHKSTK],[1],[Have host's ___chkstk]))
1673 AC_CHECK_LIB(gcc,__ashldi3,AC_DEFINE([HAVE___ASHLDI3],[1],[Have host's __ashldi3]))
1674 AC_CHECK_LIB(gcc,__ashrdi3,AC_DEFINE([HAVE___ASHRDI3],[1],[Have host's __ashrdi3]))
1675 AC_CHECK_LIB(gcc,__divdi3,AC_DEFINE([HAVE___DIVDI3],[1],[Have host's __divdi3]))
1676 AC_CHECK_LIB(gcc,__fixdfdi,AC_DEFINE([HAVE___FIXDFDI],[1],[Have host's __fixdfdi]))
1677 AC_CHECK_LIB(gcc,__fixsfdi,AC_DEFINE([HAVE___FIXSFDI],[1],[Have host's __fixsfdi]))
1678 AC_CHECK_LIB(gcc,__floatdidf,AC_DEFINE([HAVE___FLOATDIDF],[1],[Have host's __floatdidf]))
1679 AC_CHECK_LIB(gcc,__lshrdi3,AC_DEFINE([HAVE___LSHRDI3],[1],[Have host's __lshrdi3]))
1680 AC_CHECK_LIB(gcc,__moddi3,AC_DEFINE([HAVE___MODDI3],[1],[Have host's __moddi3]))
1681 AC_CHECK_LIB(gcc,__udivdi3,AC_DEFINE([HAVE___UDIVDI3],[1],[Have host's __udivdi3]))
1682 AC_CHECK_LIB(gcc,__umoddi3,AC_DEFINE([HAVE___UMODDI3],[1],[Have host's __umoddi3]))
1684 AC_CHECK_LIB(gcc,__main,AC_DEFINE([HAVE___MAIN],[1],[Have host's __main]))
1685 AC_CHECK_LIB(gcc,__cmpdi2,AC_DEFINE([HAVE___CMPDI2],[1],[Have host's __cmpdi2]))
1688 dnl Check Win32 API EnumerateLoadedModules.
1689 if test "$llvm_cv_os_type" = "MingW" ; then
1690 AC_MSG_CHECKING([whether EnumerateLoadedModules() accepts new decl])
1694 #include <windows.h>
1695 #include <imagehlp.h>
1696 extern void foo(PENUMLOADED_MODULES_CALLBACK);
1697 extern void foo(BOOL(CALLBACK*)(PCSTR,ULONG_PTR,ULONG,PVOID));
1701 AC_MSG_RESULT([yes])
1702 llvm_cv_win32_elmcb_pcstr="PCSTR"
1706 llvm_cv_win32_elmcb_pcstr="PSTR"
1708 AC_DEFINE_UNQUOTED([WIN32_ELMCB_PCSTR],$llvm_cv_win32_elmcb_pcstr,[Type of 1st arg on ELM Callback])
1711 dnl Check for variations in the Standard C++ library and STL. These macros are
1712 dnl provided by LLVM in the autoconf/m4 directory.
1716 dnl Check for mmap support.We also need to know if /dev/zero is required to
1717 dnl be opened for allocating RWX memory.
1718 dnl Make sure we aren't attempting to configure for an unknown system
1719 if test "$llvm_cv_platform_type" = "Unix" ; then
1722 AC_NEED_DEV_ZERO_FOR_MMAP
1724 if test "$ac_cv_func_mmap_fixed_mapped" = "no"
1726 AC_MSG_WARN([mmap() of a fixed address required but not supported])
1728 if test "$ac_cv_func_mmap_file" = "no"
1730 AC_MSG_WARN([mmap() of files required but not found])
1734 dnl atomic builtins are required for threading support.
1735 AC_MSG_CHECKING(for GCC atomic builtins)
1736 dnl Since we'll be using these atomic builtins in C++ files we should test
1737 dnl the C++ compiler.
1743 volatile unsigned long val = 1;
1744 __sync_synchronize();
1745 __sync_val_compare_and_swap(&val, 1, 0);
1746 __sync_add_and_fetch(&val, 1);
1747 __sync_sub_and_fetch(&val, 1);
1753 AC_MSG_RESULT([yes])
1754 AC_DEFINE([LLVM_HAS_ATOMICS], [1], [Has gcc/MSVC atomic intrinsics])
1758 AC_DEFINE([LLVM_HAS_ATOMICS], [0], [Has gcc/MSVC atomic intrinsics])
1759 AC_MSG_WARN([LLVM will be built thread-unsafe because atomic builtins are missing])
1763 dnl===-----------------------------------------------------------------------===
1765 dnl=== SECTION 9: Additional checks, variables, etc.
1767 dnl===-----------------------------------------------------------------------===
1769 dnl Handle 32-bit linux systems running a 64-bit kernel.
1770 dnl This has to come after section 4 because it invokes the compiler.
1771 if test "$llvm_cv_os_type" = "Linux" -a "$llvm_cv_target_arch" = "x86_64" ; then
1773 if test "$llvm_cv_linux_mixed" = "yes"; then
1774 llvm_cv_target_arch="x86"
1779 dnl Check whether __dso_handle is present
1780 AC_CHECK_FUNCS([__dso_handle])
1782 dnl Propagate the shared library extension that the libltdl checks did to
1783 dnl the Makefiles so we can use it there too
1784 AC_SUBST(SHLIBEXT,$libltdl_cv_shlibext)
1786 dnl Propagate the run-time library path variable that the libltdl
1787 dnl checks found to the Makefiles so we can use it there too
1788 AC_SUBST(SHLIBPATH_VAR,$libltdl_cv_shlibpath_var)
1790 dnl Translate the various configuration directories and other basic
1791 dnl information into substitutions that will end up in Makefile.config.in
1792 dnl that these configured values can be used by the makefiles
1793 if test "${prefix}" = "NONE" ; then
1796 eval LLVM_PREFIX="${prefix}";
1797 eval LLVM_BINDIR="${prefix}/bin";
1798 eval LLVM_DATADIR="${prefix}/share/llvm";
1799 eval LLVM_DOCSDIR="${prefix}/share/doc/llvm";
1800 eval LLVM_ETCDIR="${prefix}/etc/llvm";
1801 eval LLVM_INCLUDEDIR="${prefix}/include";
1802 eval LLVM_INFODIR="${prefix}/info";
1803 eval LLVM_MANDIR="${prefix}/man";
1804 LLVM_CONFIGTIME=`date`
1805 AC_SUBST(LLVM_PREFIX)
1806 AC_SUBST(LLVM_BINDIR)
1807 AC_SUBST(LLVM_DATADIR)
1808 AC_SUBST(LLVM_DOCSDIR)
1809 AC_SUBST(LLVM_ETCDIR)
1810 AC_SUBST(LLVM_INCLUDEDIR)
1811 AC_SUBST(LLVM_INFODIR)
1812 AC_SUBST(LLVM_MANDIR)
1813 AC_SUBST(LLVM_CONFIGTIME)
1815 dnl Disable embedding timestamps in the build directory, with ENABLE_TIMESTAMPS.
1816 if test "${ENABLE_TIMESTAMPS}" = "0"; then
1817 LLVM_CONFIGTIME="(timestamp not enabled)"
1820 dnl Place the various directories into the config.h file as #defines so that we
1821 dnl can know about the installation paths within LLVM.
1822 AC_DEFINE_UNQUOTED(LLVM_PREFIX,"$LLVM_PREFIX",
1823 [Installation prefix directory])
1824 AC_DEFINE_UNQUOTED(LLVM_BINDIR, "$LLVM_BINDIR",
1825 [Installation directory for binary executables])
1826 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DATADIR",
1827 [Installation directory for data files])
1828 AC_DEFINE_UNQUOTED(LLVM_DOCSDIR, "$LLVM_DOCSDIR",
1829 [Installation directory for documentation])
1830 AC_DEFINE_UNQUOTED(LLVM_ETCDIR, "$LLVM_ETCDIR",
1831 [Installation directory for config files])
1832 AC_DEFINE_UNQUOTED(LLVM_INCLUDEDIR, "$LLVM_INCLUDEDIR",
1833 [Installation directory for include files])
1834 AC_DEFINE_UNQUOTED(LLVM_INFODIR, "$LLVM_INFODIR",
1835 [Installation directory for .info files])
1836 AC_DEFINE_UNQUOTED(LLVM_MANDIR, "$LLVM_MANDIR",
1837 [Installation directory for man pages])
1838 AC_DEFINE_UNQUOTED(LLVM_CONFIGTIME, "$LLVM_CONFIGTIME",
1839 [Time at which LLVM was configured])
1840 AC_DEFINE_UNQUOTED(LLVM_HOST_TRIPLE, "$host",
1841 [Host triple LLVM will be executed on])
1842 AC_DEFINE_UNQUOTED(LLVM_DEFAULT_TARGET_TRIPLE, "$target",
1843 [Target triple LLVM will generate code for by default])
1845 dnl Determine which bindings to build.
1846 if test "$BINDINGS_TO_BUILD" = auto ; then
1847 BINDINGS_TO_BUILD=""
1848 if test "x$OCAMLC" != x -a "x$OCAMLDEP" != x ; then
1849 BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD"
1852 AC_SUBST(BINDINGS_TO_BUILD,$BINDINGS_TO_BUILD)
1854 dnl This isn't really configurey, but it avoids having to repeat the list in
1856 AC_SUBST(ALL_BINDINGS,ocaml)
1858 dnl Do any work necessary to ensure that bindings have what they need.
1859 binding_prereqs_failed=0
1860 for a_binding in $BINDINGS_TO_BUILD ; do
1861 case "$a_binding" in
1863 if test "x$OCAMLC" = x ; then
1864 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlc not found. Try configure OCAMLC=/path/to/ocamlc])
1865 binding_prereqs_failed=1
1867 if test "x$OCAMLDEP" = x ; then
1868 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamldep not found. Try configure OCAMLDEP=/path/to/ocamldep])
1869 binding_prereqs_failed=1
1871 if test "x$OCAMLOPT" = x ; then
1872 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlopt not found. Try configure OCAMLOPT=/path/to/ocamlopt])
1873 dnl ocamlopt is optional!
1875 if test "x$with_ocaml_libdir" != xauto ; then
1876 AC_SUBST(OCAML_LIBDIR,$with_ocaml_libdir)
1878 ocaml_stdlib="`"$OCAMLC" -where`"
1879 if test "$LLVM_PREFIX" '<' "$ocaml_stdlib" -a "$ocaml_stdlib" '<' "$LLVM_PREFIX~"
1881 # ocaml stdlib is beneath our prefix; use stdlib
1882 AC_SUBST(OCAML_LIBDIR,$ocaml_stdlib)
1884 # ocaml stdlib is outside our prefix; use libdir/ocaml
1885 AC_SUBST(OCAML_LIBDIR,${prefix}/lib/ocaml)
1891 if test "$binding_prereqs_failed" = 1 ; then
1892 AC_MSG_ERROR([Prequisites for bindings not satisfied. Fix them or use configure --disable-bindings.])
1895 dnl Determine whether the compiler supports -fvisibility-inlines-hidden.
1896 AC_CXX_USE_VISIBILITY_INLINES_HIDDEN
1898 dnl Determine linker rpath flag
1899 if test "$llvm_cv_link_use_r" = "yes" ; then
1906 dnl Determine linker rdynamic flag
1907 if test "$llvm_cv_link_use_export_dynamic" = "yes" ; then
1908 RDYNAMIC="-rdynamic"
1914 dnl===-----------------------------------------------------------------------===
1916 dnl=== SECTION 10: Specify the output files and generate it
1918 dnl===-----------------------------------------------------------------------===
1920 dnl Configure header files
1921 dnl WARNING: dnl If you add or remove any of the following config headers, then
1922 dnl you MUST also update Makefile so that the variable FilesToConfig
1923 dnl contains the same list of files as AC_CONFIG_HEADERS below. This ensures the
1924 dnl files can be updated automatically when their *.in sources change.
1925 AC_CONFIG_HEADERS([include/llvm/Config/config.h include/llvm/Config/llvm-config.h])
1926 AH_TOP([#ifndef CONFIG_H
1930 AC_CONFIG_FILES([include/llvm/Config/Targets.def])
1931 AC_CONFIG_FILES([include/llvm/Config/AsmPrinters.def])
1932 AC_CONFIG_FILES([include/llvm/Config/AsmParsers.def])
1933 AC_CONFIG_FILES([include/llvm/Config/Disassemblers.def])
1934 AC_CONFIG_HEADERS([include/llvm/Support/DataTypes.h])
1936 dnl Configure the makefile's configuration data
1937 AC_CONFIG_FILES([Makefile.config])
1939 dnl Configure the RPM spec file for LLVM
1940 AC_CONFIG_FILES([llvm.spec])
1942 dnl Configure doxygen's configuration file
1943 AC_CONFIG_FILES([docs/doxygen.cfg])
1945 dnl Configure clang, if present
1946 if test "${clang_src_root}" = ""; then
1947 clang_src_root="$srcdir/tools/clang"
1949 if test -f ${clang_src_root}/README.txt; then
1950 dnl Use variables to stay under 80 columns.
1951 configh="include/clang/Config/config.h"
1952 doxy="docs/doxygen.cfg"
1953 AC_CONFIG_HEADERS([tools/clang/${configh}:${clang_src_root}/${configh}.in])
1954 AC_CONFIG_FILES([tools/clang/${doxy}:${clang_src_root}/${doxy}.in])
1957 dnl OCaml findlib META file
1958 AC_CONFIG_FILES([bindings/ocaml/llvm/META.llvm])
1960 dnl Add --program-prefix value to Makefile.rules. Already an ARG variable.
1961 test "x$program_prefix" = "xNONE" && program_prefix=""
1962 AC_SUBST([program_prefix])
1965 dnl Do special configuration of Makefiles
1966 AC_CONFIG_COMMANDS([setup],,[llvm_src="${srcdir}"])
1967 AC_CONFIG_MAKEFILE(Makefile)
1968 AC_CONFIG_MAKEFILE(Makefile.common)
1969 AC_CONFIG_MAKEFILE(examples/Makefile)
1970 AC_CONFIG_MAKEFILE(lib/Makefile)
1971 AC_CONFIG_MAKEFILE(runtime/Makefile)
1972 AC_CONFIG_MAKEFILE(test/Makefile)
1973 AC_CONFIG_MAKEFILE(test/Makefile.tests)
1974 AC_CONFIG_MAKEFILE(unittests/Makefile)
1975 AC_CONFIG_MAKEFILE(tools/Makefile)
1976 AC_CONFIG_MAKEFILE(utils/Makefile)
1977 AC_CONFIG_MAKEFILE(projects/Makefile)
1978 AC_CONFIG_MAKEFILE(bindings/Makefile)
1979 AC_CONFIG_MAKEFILE(bindings/ocaml/Makefile.ocaml)
1981 dnl Finally, crank out the output