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],[3.3svn],[http://llvm.org/bugs/])
35 AC_DEFINE([LLVM_VERSION_MAJOR], [3], [Major version of the LLVM API])
36 AC_DEFINE([LLVM_VERSION_MINOR], [3], [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" ;;
225 *-*-freebsd* | *-*-kfreebsd-gnu)
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="OpenBSD"
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="NetBSD"
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="DragonFly"
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="HP-UX"
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="Interix"
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="Linux"
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="GNU"
264 llvm_cv_platform_type="Unix" ;;
266 llvm_cv_link_all_option="-Wl,-z,allextract"
267 llvm_cv_no_link_all_option="-Wl,-z,defaultextract"
268 llvm_cv_os_type="SunOS"
269 llvm_cv_platform_type="Unix" ;;
271 llvm_cv_link_all_option="-Wl,-z,allextract"
272 llvm_cv_link_all_option="-Wl,-z,defaultextract"
273 llvm_cv_os_type="AuroraUX"
274 llvm_cv_platform_type="Unix" ;;
276 llvm_cv_link_all_option="-Wl,--whole-archive"
277 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
278 llvm_cv_os_type="Win32"
279 llvm_cv_platform_type="Win32" ;;
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="MingW"
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="Haiku"
289 llvm_cv_platform_type="Unix" ;;
291 llvm_cv_link_all_option="-Wl,--whole-archive"
292 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
293 llvm_cv_os_type="Freestanding"
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=""
302 llvm_cv_no_link_all_option=""
303 llvm_cv_os_type="Unknown"
304 llvm_cv_platform_type="Unknown" ;;
307 AC_CACHE_CHECK([type of operating system we're going to target],
308 [llvm_cv_target_os_type],
311 llvm_cv_target_os_type="AIX" ;;
313 llvm_cv_target_os_type="IRIX" ;;
315 llvm_cv_target_os_type="Cygwin" ;;
317 llvm_cv_target_os_type="Darwin" ;;
319 llvm_cv_target_os_type="Minix" ;;
320 *-*-freebsd* | *-*-kfreebsd-gnu)
321 llvm_cv_target_os_type="FreeBSD" ;;
323 llvm_cv_target_os_type="OpenBSD" ;;
325 llvm_cv_target_os_type="NetBSD" ;;
327 llvm_cv_target_os_type="DragonFly" ;;
329 llvm_cv_target_os_type="HP-UX" ;;
331 llvm_cv_target_os_type="Interix" ;;
333 llvm_cv_target_os_type="Linux" ;;
335 llvm_cv_target_os_type="GNU" ;;
337 llvm_cv_target_os_type="SunOS" ;;
339 llvm_cv_target_os_type="AuroraUX" ;;
341 llvm_cv_target_os_type="Win32" ;;
343 llvm_cv_target_os_type="MingW" ;;
345 llvm_cv_target_os_type="Haiku" ;;
347 llvm_cv_target_os_type="RTEMS" ;;
349 llvm_cv_target_os_type="NativeClient" ;;
351 llvm_cv_target_os_type="Freestanding" ;;
353 llvm_cv_target_os_type="Unknown" ;;
356 dnl Make sure we aren't attempting to configure for an unknown system
357 if test "$llvm_cv_os_type" = "Unknown" ; then
358 AC_MSG_ERROR([Operating system is unknown, configure can't continue])
361 dnl Set the "OS" Makefile variable based on the platform type so the
362 dnl makefile can configure itself to specific build hosts
363 AC_SUBST(OS,$llvm_cv_os_type)
364 AC_SUBST(HOST_OS,$llvm_cv_os_type)
365 AC_SUBST(TARGET_OS,$llvm_cv_target_os_type)
367 dnl Set the LINKALL and NOLINKALL Makefile variables based on the platform
368 AC_SUBST(LINKALL,$llvm_cv_link_all_option)
369 AC_SUBST(NOLINKALL,$llvm_cv_no_link_all_option)
371 dnl Set the "LLVM_ON_*" variables based on llvm_cv_platform_type
372 dnl This is used by lib/Support to determine the basic kind of implementation
374 case $llvm_cv_platform_type in
376 AC_DEFINE([LLVM_ON_UNIX],[1],[Define if this is Unixish platform])
377 AC_SUBST(LLVM_ON_UNIX,[1])
378 AC_SUBST(LLVM_ON_WIN32,[0])
381 AC_DEFINE([LLVM_ON_WIN32],[1],[Define if this is Win32ish platform])
382 AC_SUBST(LLVM_ON_UNIX,[0])
383 AC_SUBST(LLVM_ON_WIN32,[1])
387 dnl Determine what our target architecture is and configure accordingly.
388 dnl This will allow Makefiles to make a distinction between the hardware and
390 AC_CACHE_CHECK([target architecture],[llvm_cv_target_arch],
392 i?86-*) llvm_cv_target_arch="x86" ;;
393 amd64-* | x86_64-*) llvm_cv_target_arch="x86_64" ;;
394 sparc*-*) llvm_cv_target_arch="Sparc" ;;
395 powerpc*-*) llvm_cv_target_arch="PowerPC" ;;
396 arm*-*) llvm_cv_target_arch="ARM" ;;
397 aarch64*-*) llvm_cv_target_arch="AArch64" ;;
398 mips-* | mips64-*) llvm_cv_target_arch="Mips" ;;
399 mipsel-* | mips64el-*) llvm_cv_target_arch="Mips" ;;
400 xcore-*) llvm_cv_target_arch="XCore" ;;
401 msp430-*) llvm_cv_target_arch="MSP430" ;;
402 hexagon-*) llvm_cv_target_arch="Hexagon" ;;
403 mblaze-*) llvm_cv_target_arch="MBlaze" ;;
404 nvptx-*) llvm_cv_target_arch="NVPTX" ;;
405 *) llvm_cv_target_arch="Unknown" ;;
408 if test "$llvm_cv_target_arch" = "Unknown" ; then
409 AC_MSG_WARN([Configuring LLVM for an unknown target archicture])
412 dnl Determine the LLVM native architecture for the target
413 case "$llvm_cv_target_arch" in
414 x86) LLVM_NATIVE_ARCH="X86" ;;
415 x86_64) LLVM_NATIVE_ARCH="X86" ;;
416 *) LLVM_NATIVE_ARCH="$llvm_cv_target_arch" ;;
419 dnl Define a substitution, ARCH, for the target architecture
420 AC_SUBST(ARCH,$llvm_cv_target_arch)
422 dnl Determine what our host architecture.
423 dnl This will allow MCJIT regress tests runs only for supported
426 i?86-*) host_arch="x86" ;;
427 amd64-* | x86_64-*) host_arch="x86_64" ;;
428 sparc*-*) host_arch="Sparc" ;;
429 powerpc*-*) host_arch="PowerPC" ;;
430 arm*-*) host_arch="ARM" ;;
431 aarch64*-*) host_arch="AArch64" ;;
432 mips-* | mips64-*) host_arch="Mips" ;;
433 mipsel-* | mips64el-*) host_arch="Mips" ;;
434 xcore-*) host_arch="XCore" ;;
435 msp430-*) host_arch="MSP430" ;;
436 hexagon-*) host_arch="Hexagon" ;;
437 mblaze-*) host_arch="MBlaze" ;;
438 *) host_arch="Unknown" ;;
441 if test "$host_arch" = "Unknown" ; then
442 AC_MSG_WARN([Configuring LLVM for an unknown host archicture])
445 AC_SUBST(HOST_ARCH,$host_arch)
447 dnl Check for the endianness of the target
448 AC_C_BIGENDIAN(AC_SUBST([ENDIAN],[big]),AC_SUBST([ENDIAN],[little]))
450 dnl Check for build platform executable suffix if we're cross-compiling
451 if test "$cross_compiling" = yes; then
452 AC_SUBST(LLVM_CROSS_COMPILING, [1])
454 ac_build_prefix=${build_alias}-
455 AC_CHECK_PROG(BUILD_CXX, ${ac_build_prefix}g++, ${ac_build_prefix}g++)
456 if test -z "$BUILD_CXX"; then
457 AC_CHECK_PROG(BUILD_CXX, g++, g++)
458 if test -z "$BUILD_CXX"; then
459 AC_CHECK_PROG(BUILD_CXX, c++, c++, , , /usr/ucb/c++)
463 AC_SUBST(LLVM_CROSS_COMPILING, [0])
466 dnl Check to see if there's a .svn or .git directory indicating that this
467 dnl build is being done from a checkout. This sets up several defaults for
468 dnl the command line switches. When we build with a checkout directory,
469 dnl we get a debug with assertions turned on. Without, we assume a source
470 dnl release and we get an optimized build without assertions.
471 dnl See --enable-optimized and --enable-assertions below
472 if test -d ".svn" -o -d "${srcdir}/.svn" -o -d ".git" -o -d "${srcdir}/.git"; then
475 AC_SUBST(CVSBUILD,[[CVSBUILD=1]])
481 dnl===-----------------------------------------------------------------------===
483 dnl=== SECTION 3: Command line arguments for the configure script.
485 dnl===-----------------------------------------------------------------------===
487 dnl --enable-libcpp : check whether or not to use libc++ on the command line
488 AC_ARG_ENABLE(libcpp,
489 AS_HELP_STRING([--enable-libcpp],
490 [Use libc++ if available (default is NO)]),,
493 yes) AC_SUBST(ENABLE_LIBCPP,[1]) ;;
494 no) AC_SUBST(ENABLE_LIBCPP,[0]) ;;
495 default) AC_SUBST(ENABLE_LIBCPP,[0]);;
496 *) AC_MSG_ERROR([Invalid setting for --enable-libcpp. Use "yes" or "no"]) ;;
499 dnl --enable-cxx11 : check whether or not to use -std=c++11 on the command line
501 AS_HELP_STRING([--enable-cxx11],
502 [Use c++11 if available (default is NO)]),,
505 yes) AC_SUBST(ENABLE_CXX11,[1]) ;;
506 no) AC_SUBST(ENABLE_CXX11,[0]) ;;
507 default) AC_SUBST(ENABLE_CXX11,[0]);;
508 *) AC_MSG_ERROR([Invalid setting for --enable-cxx11. Use "yes" or "no"]) ;;
511 dnl --enable-clang-arcmt: check whether to enable clang arcmt
513 AC_ARG_ENABLE(clang-arcmt,
514 AS_HELP_STRING([--enable-clang-arcmt],
515 [Enable building of clang ARCMT (default is YES)]),
516 clang_arcmt="$enableval",
519 yes) AC_SUBST(ENABLE_CLANG_ARCMT,[1]) ;;
520 no) AC_SUBST(ENABLE_CLANG_ARCMT,[0]) ;;
521 default) AC_SUBST(ENABLE_CLANG_ARCMT,[1]);;
522 *) AC_MSG_ERROR([Invalid setting for --enable-clang-arcmt. Use "yes" or "no"]) ;;
525 dnl --enable-clang-static-analyzer: check whether to enable static-analyzer
526 clang_static_analyzer="yes"
527 AC_ARG_ENABLE(clang-static-analyzer,
528 AS_HELP_STRING([--enable-clang-static-analyzer],
529 [Enable building of clang Static Analyzer (default is YES)]),
530 clang_static_analyzer="$enableval",
533 yes) AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[1]) ;;
534 no) AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[0]) ;;
535 default) AC_SUBST(ENABLE_CLANG_STATIC_ANALYZER,[1]);;
536 *) AC_MSG_ERROR([Invalid setting for --enable-clang-static-analyzer. Use "yes" or "no"]) ;;
539 dnl --enable-clang-rewriter: check whether to enable clang rewriter
540 AC_ARG_ENABLE(clang-rewriter,
541 AS_HELP_STRING([--enable-clang-rewriter],
542 [Enable building of clang rewriter (default is YES)]),,
545 yes) AC_SUBST(ENABLE_CLANG_REWRITER,[1]) ;;
547 if test ${clang_arcmt} != "no" ; then
548 AC_MSG_ERROR([Cannot enable clang ARC Migration Tool while disabling rewriter.])
550 if test ${clang_static_analyzer} != "no" ; then
551 AC_MSG_ERROR([Cannot enable clang static analyzer while disabling rewriter.])
553 AC_SUBST(ENABLE_CLANG_REWRITER,[0])
555 default) AC_SUBST(ENABLE_CLANG_REWRITER,[1]);;
556 *) AC_MSG_ERROR([Invalid setting for --enable-clang-rewriter. Use "yes" or "no"]) ;;
559 dnl --enable-optimized : check whether they want to do an optimized build:
560 AC_ARG_ENABLE(optimized, AS_HELP_STRING(
561 --enable-optimized,[Compile with optimizations enabled (default is NO)]),,enableval=$optimize)
562 if test ${enableval} = "no" ; then
563 AC_SUBST(ENABLE_OPTIMIZED,[[]])
565 AC_SUBST(ENABLE_OPTIMIZED,[[ENABLE_OPTIMIZED=1]])
568 dnl --enable-profiling : check whether they want to do a profile build:
569 AC_ARG_ENABLE(profiling, AS_HELP_STRING(
570 --enable-profiling,[Compile with profiling enabled (default is NO)]),,enableval="no")
571 if test ${enableval} = "no" ; then
572 AC_SUBST(ENABLE_PROFILING,[[]])
574 AC_SUBST(ENABLE_PROFILING,[[ENABLE_PROFILING=1]])
577 dnl --enable-assertions : check whether they want to turn on assertions or not:
578 AC_ARG_ENABLE(assertions,AS_HELP_STRING(
579 --enable-assertions,[Compile with assertion checks enabled (default is YES)]),, enableval="yes")
580 if test ${enableval} = "yes" ; then
581 AC_SUBST(DISABLE_ASSERTIONS,[[]])
583 AC_SUBST(DISABLE_ASSERTIONS,[[DISABLE_ASSERTIONS=1]])
586 dnl --enable-werror : check whether we want Werror on by default
587 AC_ARG_ENABLE(werror,AS_HELP_STRING(
588 --enable-werror,[Compile with -Werror enabled (default is NO)]),, enableval="no")
590 yes) AC_SUBST(ENABLE_WERROR,[1]) ;;
591 no) AC_SUBST(ENABLE_WERROR,[0]) ;;
592 default) AC_SUBST(ENABLE_WERROR,[0]);;
593 *) AC_MSG_ERROR([Invalid setting for --enable-werror. Use "yes" or "no"]) ;;
596 dnl --enable-expensive-checks : check whether they want to turn on expensive debug checks:
597 AC_ARG_ENABLE(expensive-checks,AS_HELP_STRING(
598 --enable-expensive-checks,[Compile with expensive debug checks enabled (default is NO)]),, enableval="no")
599 if test ${enableval} = "yes" ; then
600 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[ENABLE_EXPENSIVE_CHECKS=1]])
601 AC_SUBST(EXPENSIVE_CHECKS,[[yes]])
603 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[]])
604 AC_SUBST(EXPENSIVE_CHECKS,[[no]])
607 dnl --enable-debug-runtime : should runtime libraries have debug symbols?
608 AC_ARG_ENABLE(debug-runtime,
609 AS_HELP_STRING(--enable-debug-runtime,[Build runtime libs with debug symbols (default is NO)]),,enableval=no)
610 if test ${enableval} = "no" ; then
611 AC_SUBST(DEBUG_RUNTIME,[[]])
613 AC_SUBST(DEBUG_RUNTIME,[[DEBUG_RUNTIME=1]])
616 dnl --enable-debug-symbols : should even optimized compiler libraries
617 dnl have debug symbols?
618 AC_ARG_ENABLE(debug-symbols,
619 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)
620 if test ${enableval} = "no" ; then
621 AC_SUBST(DEBUG_SYMBOLS,[[]])
623 AC_SUBST(DEBUG_SYMBOLS,[[DEBUG_SYMBOLS=1]])
626 dnl --enable-keep-symbols : do not strip installed executables
627 AC_ARG_ENABLE(keep-symbols,
628 AS_HELP_STRING(--enable-keep-symbols,[Do not strip installed executables)]),,enableval=no)
629 if test ${enableval} = "no" ; then
630 AC_SUBST(KEEP_SYMBOLS,[[]])
632 AC_SUBST(KEEP_SYMBOLS,[[KEEP_SYMBOLS=1]])
635 dnl --enable-jit: check whether they want to enable the jit
637 AS_HELP_STRING(--enable-jit,
638 [Enable Just In Time Compiling (default is YES)]),,
640 if test ${enableval} = "no"
644 case "$llvm_cv_target_arch" in
645 x86) AC_SUBST(TARGET_HAS_JIT,1) ;;
646 Sparc) AC_SUBST(TARGET_HAS_JIT,0) ;;
647 PowerPC) AC_SUBST(TARGET_HAS_JIT,1) ;;
648 x86_64) AC_SUBST(TARGET_HAS_JIT,1) ;;
649 ARM) AC_SUBST(TARGET_HAS_JIT,1) ;;
650 AArch64) AC_SUBST(TARGET_HAS_JIT,0) ;;
651 Mips) AC_SUBST(TARGET_HAS_JIT,1) ;;
652 XCore) AC_SUBST(TARGET_HAS_JIT,0) ;;
653 MSP430) AC_SUBST(TARGET_HAS_JIT,0) ;;
654 Hexagon) AC_SUBST(TARGET_HAS_JIT,0) ;;
655 MBlaze) AC_SUBST(TARGET_HAS_JIT,0) ;;
656 NVPTX) AC_SUBST(TARGET_HAS_JIT,0) ;;
657 *) AC_SUBST(TARGET_HAS_JIT,0) ;;
661 dnl Allow enablement of building and installing docs
663 AS_HELP_STRING([--enable-docs],
664 [Build documents (default is YES)]),,
667 yes) AC_SUBST(ENABLE_DOCS,[1]) ;;
668 no) AC_SUBST(ENABLE_DOCS,[0]) ;;
669 default) AC_SUBST(ENABLE_DOCS,[1]) ;;
670 *) AC_MSG_ERROR([Invalid setting for --enable-docs. Use "yes" or "no"]) ;;
673 dnl Allow enablement of doxygen generated documentation
674 AC_ARG_ENABLE(doxygen,
675 AS_HELP_STRING([--enable-doxygen],
676 [Build doxygen documentation (default is NO)]),,
679 yes) AC_SUBST(ENABLE_DOXYGEN,[1]) ;;
680 no) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
681 default) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
682 *) AC_MSG_ERROR([Invalid setting for --enable-doxygen. Use "yes" or "no"]) ;;
685 dnl Allow disablement of threads
686 AC_ARG_ENABLE(threads,
687 AS_HELP_STRING([--enable-threads],
688 [Use threads if available (default is YES)]),,
691 yes) AC_SUBST(LLVM_ENABLE_THREADS,[1]) ;;
692 no) AC_SUBST(LLVM_ENABLE_THREADS,[0]) ;;
693 default) AC_SUBST(LLVM_ENABLE_THREADS,[1]) ;;
694 *) AC_MSG_ERROR([Invalid setting for --enable-threads. Use "yes" or "no"]) ;;
696 AC_DEFINE_UNQUOTED([LLVM_ENABLE_THREADS],$LLVM_ENABLE_THREADS,
697 [Define if threads enabled])
699 dnl Allow disablement of pthread.h
700 AC_ARG_ENABLE(pthreads,
701 AS_HELP_STRING([--enable-pthreads],
702 [Use pthreads if available (default is YES)]),,
705 yes) AC_SUBST(ENABLE_PTHREADS,[1]) ;;
706 no) AC_SUBST(ENABLE_PTHREADS,[0]) ;;
707 default) AC_SUBST(ENABLE_PTHREADS,[1]) ;;
708 *) AC_MSG_ERROR([Invalid setting for --enable-pthreads. Use "yes" or "no"]) ;;
711 dnl Allow building without position independent code
713 AS_HELP_STRING([--enable-pic],
714 [Build LLVM with Position Independent Code (default is YES)]),,
717 yes) AC_SUBST(ENABLE_PIC,[1]) ;;
718 no) AC_SUBST(ENABLE_PIC,[0]) ;;
719 default) AC_SUBST(ENABLE_PIC,[1]) ;;
720 *) AC_MSG_ERROR([Invalid setting for --enable-pic. Use "yes" or "no"]) ;;
722 AC_DEFINE_UNQUOTED([ENABLE_PIC],$ENABLE_PIC,
723 [Define if position independent code is enabled])
725 dnl Allow building a shared library and linking tools against it.
726 AC_ARG_ENABLE(shared,
727 AS_HELP_STRING([--enable-shared],
728 [Build a shared library and link tools against it (default is NO)]),,
731 yes) AC_SUBST(ENABLE_SHARED,[1]) ;;
732 no) AC_SUBST(ENABLE_SHARED,[0]) ;;
733 default) AC_SUBST(ENABLE_SHARED,[0]) ;;
734 *) AC_MSG_ERROR([Invalid setting for --enable-shared. Use "yes" or "no"]) ;;
737 dnl Allow libstdc++ is embedded in LLVM.dll.
738 AC_ARG_ENABLE(embed-stdcxx,
739 AS_HELP_STRING([--enable-embed-stdcxx],
740 [Build a shared library with embedded libstdc++ for Win32 DLL (default is NO)]),,
743 yes) AC_SUBST(ENABLE_EMBED_STDCXX,[1]) ;;
744 no) AC_SUBST(ENABLE_EMBED_STDCXX,[0]) ;;
745 default) AC_SUBST(ENABLE_EMBED_STDCXX,[0]) ;;
746 *) AC_MSG_ERROR([Invalid setting for --enable-embed-stdcxx. Use "yes" or "no"]) ;;
749 dnl Enable embedding timestamp information into build.
750 AC_ARG_ENABLE(timestamps,
751 AS_HELP_STRING([--enable-timestamps],
752 [Enable embedding timestamp information in build (default is YES)]),,
755 yes) AC_SUBST(ENABLE_TIMESTAMPS,[1]) ;;
756 no) AC_SUBST(ENABLE_TIMESTAMPS,[0]) ;;
757 default) AC_SUBST(ENABLE_TIMESTAMPS,[1]) ;;
758 *) AC_MSG_ERROR([Invalid setting for --enable-timestamps. Use "yes" or "no"]) ;;
760 AC_DEFINE_UNQUOTED([ENABLE_TIMESTAMPS],$ENABLE_TIMESTAMPS,
761 [Define if timestamp information (e.g., __DATE__) is allowed])
763 dnl Enable embedding timestamp information into build.
765 AC_ARG_ENABLE(backtraces,
766 AS_HELP_STRING([--enable-backtraces],
767 [Enable embedding backtraces on crash (default is YES)]),,
770 yes) AC_SUBST(ENABLE_BACKTRACES,[1]) ;;
771 no) AC_SUBST(ENABLE_BACKTRACES,[0]) ;;
772 default) AC_SUBST(ENABLE_BACKTRACES,[1]) ;;
773 *) AC_MSG_ERROR([Invalid setting for --enable-backtraces. Use "yes" or "no"]) ;;
775 AC_DEFINE_UNQUOTED([ENABLE_BACKTRACES],$ENABLE_BACKTRACES,
776 [Define if you want backtraces on crash])
778 dnl Allow specific targets to be specified for building (or not)
780 AC_ARG_ENABLE([targets],AS_HELP_STRING([--enable-targets],
781 [Build specific host targets: all or target1,target2,... Valid targets are:
782 host, x86, x86_64, sparc, powerpc, arm, aarch64, mips, hexagon,
783 xcore, msp430, nvptx, and cpp (default=all)]),,
785 if test "$enableval" = host-only ; then
789 all) TARGETS_TO_BUILD="X86 Sparc PowerPC AArch64 ARM Mips XCore MSP430 CppBackend MBlaze NVPTX Hexagon" ;;
790 *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
792 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
793 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
794 sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
795 powerpc) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
796 aarch64) TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
797 arm) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
798 mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
799 mipsel) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
800 mips64) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
801 mips64el) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
802 xcore) TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
803 msp430) TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;;
804 cpp) TARGETS_TO_BUILD="CppBackend $TARGETS_TO_BUILD" ;;
805 hexagon) TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;;
806 mblaze) TARGETS_TO_BUILD="MBlaze $TARGETS_TO_BUILD" ;;
807 nvptx) TARGETS_TO_BUILD="NVPTX $TARGETS_TO_BUILD" ;;
808 host) case "$llvm_cv_target_arch" in
809 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
810 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
811 Sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
812 PowerPC) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
813 ARM) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
814 Mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
815 MBlaze) TARGETS_TO_BUILD="MBlaze $TARGETS_TO_BUILD" ;;
816 XCore) TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
817 MSP430) TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;;
818 Hexagon) TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;;
819 NVPTX) TARGETS_TO_BUILD="NVPTX $TARGETS_TO_BUILD" ;;
820 *) AC_MSG_ERROR([Can not set target to build]) ;;
822 *) AC_MSG_ERROR([Unrecognized target $a_target]) ;;
828 AC_ARG_ENABLE([experimental-targets],AS_HELP_STRING([--enable-experimental-targets],
829 [Build experimental host targets: disable or target1,target2,...
830 (default=disable)]),,
833 if test ${enableval} != "disable"
835 TARGETS_TO_BUILD="$enableval $TARGETS_TO_BUILD"
838 AC_SUBST(TARGETS_TO_BUILD,$TARGETS_TO_BUILD)
840 dnl Determine whether we are building LLVM support for the native architecture.
841 dnl If so, define LLVM_NATIVE_ARCH to that LLVM target.
842 for a_target in $TARGETS_TO_BUILD; do
843 if test "$a_target" = "$LLVM_NATIVE_ARCH"; then
844 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ARCH, $LLVM_NATIVE_ARCH,
845 [LLVM architecture name for the native architecture, if available])
846 LLVM_NATIVE_TARGET="LLVMInitialize${LLVM_NATIVE_ARCH}Target"
847 LLVM_NATIVE_TARGETINFO="LLVMInitialize${LLVM_NATIVE_ARCH}TargetInfo"
848 LLVM_NATIVE_TARGETMC="LLVMInitialize${LLVM_NATIVE_ARCH}TargetMC"
849 LLVM_NATIVE_ASMPRINTER="LLVMInitialize${LLVM_NATIVE_ARCH}AsmPrinter"
850 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/Makefile ; then
851 LLVM_NATIVE_ASMPARSER="LLVMInitialize${LLVM_NATIVE_ARCH}AsmParser"
853 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/Makefile ; then
854 LLVM_NATIVE_DISASSEMBLER="LLVMInitialize${LLVM_NATIVE_ARCH}Disassembler"
856 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGET, $LLVM_NATIVE_TARGET,
857 [LLVM name for the native Target init function, if available])
858 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGETINFO, $LLVM_NATIVE_TARGETINFO,
859 [LLVM name for the native TargetInfo init function, if available])
860 AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGETMC, $LLVM_NATIVE_TARGETMC,
861 [LLVM name for the native target MC init function, if available])
862 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ASMPRINTER, $LLVM_NATIVE_ASMPRINTER,
863 [LLVM name for the native AsmPrinter init function, if available])
864 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/Makefile ; then
865 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ASMPARSER, $LLVM_NATIVE_ASMPARSER,
866 [LLVM name for the native AsmParser init function, if available])
868 if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/Makefile ; then
869 AC_DEFINE_UNQUOTED(LLVM_NATIVE_DISASSEMBLER, $LLVM_NATIVE_DISASSEMBLER,
870 [LLVM name for the native Disassembler init function, if available])
875 dnl Build the LLVM_TARGET and LLVM_... macros for Targets.def and the individual
876 dnl target feature def files.
878 LLVM_ENUM_ASM_PRINTERS=""
879 LLVM_ENUM_ASM_PARSERS=""
880 LLVM_ENUM_DISASSEMBLERS=""
881 for target_to_build in $TARGETS_TO_BUILD; do
882 LLVM_ENUM_TARGETS="LLVM_TARGET($target_to_build) $LLVM_ENUM_TARGETS"
883 if test -f ${srcdir}/lib/Target/${target_to_build}/*AsmPrinter.cpp ; then
884 LLVM_ENUM_ASM_PRINTERS="LLVM_ASM_PRINTER($target_to_build) $LLVM_ENUM_ASM_PRINTERS";
886 if test -f ${srcdir}/lib/Target/${target_to_build}/AsmParser/Makefile ; then
887 LLVM_ENUM_ASM_PARSERS="LLVM_ASM_PARSER($target_to_build) $LLVM_ENUM_ASM_PARSERS";
889 if test -f ${srcdir}/lib/Target/${target_to_build}/Disassembler/Makefile ; then
890 LLVM_ENUM_DISASSEMBLERS="LLVM_DISASSEMBLER($target_to_build) $LLVM_ENUM_DISASSEMBLERS";
893 AC_SUBST(LLVM_ENUM_TARGETS)
894 AC_SUBST(LLVM_ENUM_ASM_PRINTERS)
895 AC_SUBST(LLVM_ENUM_ASM_PARSERS)
896 AC_SUBST(LLVM_ENUM_DISASSEMBLERS)
898 dnl Override the option to use for optimized builds.
899 AC_ARG_WITH(optimize-option,
900 AS_HELP_STRING([--with-optimize-option],
901 [Select the compiler options to use for optimized builds]),,
903 AC_MSG_CHECKING([optimization flags])
906 case "$llvm_cv_os_type" in
907 FreeBSD) optimize_option=-O2 ;;
908 MingW) optimize_option=-O2 ;;
909 *) optimize_option=-O3 ;;
911 *) optimize_option="$withval" ;;
913 AC_SUBST(OPTIMIZE_OPTION,$optimize_option)
914 AC_MSG_RESULT([$optimize_option])
916 dnl Specify extra build options
917 AC_ARG_WITH(extra-options,
918 AS_HELP_STRING([--with-extra-options],
919 [Specify additional options to compile LLVM with]),,
922 default) EXTRA_OPTIONS= ;;
923 *) EXTRA_OPTIONS=$withval ;;
925 AC_SUBST(EXTRA_OPTIONS,$EXTRA_OPTIONS)
927 dnl Specify extra linker build options
928 AC_ARG_WITH(extra-ld-options,
929 AS_HELP_STRING([--with-extra-ld-options],
930 [Specify additional options to link LLVM with]),,
933 default) EXTRA_LD_OPTIONS= ;;
934 *) EXTRA_LD_OPTIONS=$withval ;;
936 AC_SUBST(EXTRA_LD_OPTIONS,$EXTRA_LD_OPTIONS)
938 dnl Allow specific bindings to be specified for building (or not)
939 AC_ARG_ENABLE([bindings],AS_HELP_STRING([--enable-bindings],
940 [Build specific language bindings: all,auto,none,{binding-name} (default=auto)]),,
944 yes | default | auto) BINDINGS_TO_BUILD="auto" ;;
945 all ) BINDINGS_TO_BUILD="ocaml" ;;
946 none | no) BINDINGS_TO_BUILD="" ;;
947 *)for a_binding in `echo $enableval|sed -e 's/,/ /g' ` ; do
949 ocaml) BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD" ;;
950 *) AC_MSG_ERROR([Unrecognized binding $a_binding]) ;;
956 dnl Allow the ocaml libdir to be overridden. This could go in a configure
957 dnl script for bindings/ocaml/configure, except that its auto value depends on
958 dnl OCAMLC, which is found here to support tests.
959 AC_ARG_WITH([ocaml-libdir],
960 [AS_HELP_STRING([--with-ocaml-libdir],
961 [Specify install location for ocaml bindings (default is stdlib)])],
965 auto) with_ocaml_libdir="$withval" ;;
966 /* | [[A-Za-z]]:[[\\/]]*) with_ocaml_libdir="$withval" ;;
967 *) AC_MSG_ERROR([Invalid path for --with-ocaml-libdir. Provide full path]) ;;
970 AC_ARG_WITH(clang-srcdir,
971 AS_HELP_STRING([--with-clang-srcdir],
972 [Directory to the out-of-tree Clang source]),,
975 -) clang_src_root="" ;;
976 /* | [[A-Za-z]]:[[\\/]]*) clang_src_root="$withval" ;;
977 *) clang_src_root="$ac_pwd/$withval" ;;
979 AC_SUBST(CLANG_SRC_ROOT,[$clang_src_root])
981 AC_ARG_WITH(clang-resource-dir,
982 AS_HELP_STRING([--with-clang-resource-dir],
983 [Relative directory from the Clang binary for resource files]),,
985 AC_DEFINE_UNQUOTED(CLANG_RESOURCE_DIR,"$withval",
986 [Relative directory for resource files])
988 AC_ARG_WITH(c-include-dirs,
989 AS_HELP_STRING([--with-c-include-dirs],
990 [Colon separated list of directories clang will search for headers]),,
992 AC_DEFINE_UNQUOTED(C_INCLUDE_DIRS,"$withval",
993 [Directories clang will search for headers])
995 # Clang normally uses the system c++ headers and libraries. With this option,
996 # clang will use the ones provided by a gcc installation instead. This option should
997 # be passed the same value that was used with --prefix when configuring gcc.
998 AC_ARG_WITH(gcc-toolchain,
999 AS_HELP_STRING([--with-gcc-toolchain],
1000 [Directory where gcc is installed.]),,
1002 AC_DEFINE_UNQUOTED(GCC_INSTALL_PREFIX,"$withval",
1003 [Directory where gcc is installed.])
1005 AC_ARG_WITH(default-sysroot,
1006 AS_HELP_STRING([--with-default-sysroot],
1007 [Add --sysroot=<path> to all compiler invocations.]),,
1009 AC_DEFINE_UNQUOTED(DEFAULT_SYSROOT,"$withval",
1010 [Default <path> to all compiler invocations for --sysroot=<path>.])
1012 dnl Allow linking of LLVM with GPLv3 binutils code.
1013 AC_ARG_WITH(binutils-include,
1014 AS_HELP_STRING([--with-binutils-include],
1015 [Specify path to binutils/include/ containing plugin-api.h file for gold plugin.]),,
1018 default) WITH_BINUTILS_INCDIR=default ;;
1019 /* | [[A-Za-z]]:[[\\/]]*) WITH_BINUTILS_INCDIR=$withval ;;
1020 *) AC_MSG_ERROR([Invalid path for --with-binutils-include. Provide full path]) ;;
1022 if test "x$WITH_BINUTILS_INCDIR" != xdefault ; then
1023 AC_SUBST(BINUTILS_INCDIR,$WITH_BINUTILS_INCDIR)
1024 if test ! -f "$WITH_BINUTILS_INCDIR/plugin-api.h"; then
1025 echo "$WITH_BINUTILS_INCDIR/plugin-api.h"
1026 AC_MSG_ERROR([Invalid path to directory containing plugin-api.h.]);
1030 dnl Specify the URL where bug reports should be submitted.
1031 AC_ARG_WITH(bug-report-url,
1032 AS_HELP_STRING([--with-bug-report-url],
1033 [Specify the URL where bug reports should be submitted (default=http://llvm.org/bugs/)]),,
1034 withval="http://llvm.org/bugs/")
1035 AC_DEFINE_UNQUOTED(BUG_REPORT_URL,"$withval",
1038 dnl --enable-libffi : check whether the user wants to turn off libffi:
1039 AC_ARG_ENABLE(libffi,AS_HELP_STRING(
1040 --enable-libffi,[Check for the presence of libffi (default is NO)]),
1041 [case "$enableval" in
1042 yes) llvm_cv_enable_libffi="yes" ;;
1043 no) llvm_cv_enable_libffi="no" ;;
1044 *) AC_MSG_ERROR([Invalid setting for --enable-libffi. Use "yes" or "no"]) ;;
1046 llvm_cv_enable_libffi=no)
1048 AC_ARG_WITH(internal-prefix,
1049 AS_HELP_STRING([--with-internal-prefix],
1050 [Installation directory for internal files]),,
1052 AC_SUBST(INTERNAL_PREFIX,[$withval])
1054 dnl===-----------------------------------------------------------------------===
1056 dnl=== SECTION 4: Check for programs we need and that they are the right version
1058 dnl===-----------------------------------------------------------------------===
1063 dnl Check for the tools that the makefiles require
1066 AC_PATH_PROG(CMP, [cmp], [cmp])
1067 AC_PATH_PROG(CP, [cp], [cp])
1068 AC_PATH_PROG(DATE, [date], [date])
1069 AC_PATH_PROG(FIND, [find], [find])
1070 AC_PATH_PROG(GREP, [grep], [grep])
1071 AC_PATH_PROG(MKDIR,[mkdir],[mkdir])
1072 AC_PATH_PROG(MV, [mv], [mv])
1074 AC_CHECK_TOOL(AR, ar, false)
1075 AC_PATH_PROG(RM, [rm], [rm])
1076 AC_PATH_PROG(SED, [sed], [sed])
1077 AC_PATH_PROG(TAR, [tar], [gtar])
1078 AC_PATH_PROG(BINPWD,[pwd], [pwd])
1080 dnl Looking for misc. graph plotting software
1081 AC_PATH_PROG(GRAPHVIZ, [Graphviz], [echo Graphviz])
1082 if test "$GRAPHVIZ" != "echo Graphviz" ; then
1083 AC_DEFINE([HAVE_GRAPHVIZ],[1],[Define if the Graphviz program is available])
1084 dnl If we're targeting for mingw we should emit windows paths, not msys
1085 if test "$llvm_cv_os_type" = "MingW" ; then
1086 GRAPHVIZ=`echo $GRAPHVIZ | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1088 AC_DEFINE_UNQUOTED([LLVM_PATH_GRAPHVIZ],"$GRAPHVIZ${EXEEXT}",
1089 [Define to path to Graphviz program if found or 'echo Graphviz' otherwise])
1091 AC_PATH_PROG(DOT, [dot], [echo dot])
1092 if test "$DOT" != "echo dot" ; then
1093 AC_DEFINE([HAVE_DOT],[1],[Define if the dot program is available])
1094 dnl If we're targeting for mingw we should emit windows paths, not msys
1095 if test "$llvm_cv_os_type" = "MingW" ; then
1096 DOT=`echo $DOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1098 AC_DEFINE_UNQUOTED([LLVM_PATH_DOT],"$DOT${EXEEXT}",
1099 [Define to path to dot program if found or 'echo dot' otherwise])
1101 AC_PATH_PROG(FDP, [fdp], [echo fdp])
1102 if test "$FDP" != "echo fdp" ; then
1103 AC_DEFINE([HAVE_FDP],[1],[Define if the neat program is available])
1104 dnl If we're targeting for mingw we should emit windows paths, not msys
1105 if test "$llvm_cv_os_type" = "MingW" ; then
1106 FDP=`echo $FDP | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1108 AC_DEFINE_UNQUOTED([LLVM_PATH_FDP],"$FDP${EXEEXT}",
1109 [Define to path to fdp program if found or 'echo fdp' otherwise])
1111 AC_PATH_PROG(NEATO, [neato], [echo neato])
1112 if test "$NEATO" != "echo neato" ; then
1113 AC_DEFINE([HAVE_NEATO],[1],[Define if the neat program is available])
1114 dnl If we're targeting for mingw we should emit windows paths, not msys
1115 if test "$llvm_cv_os_type" = "MingW" ; then
1116 NEATO=`echo $NEATO | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1118 AC_DEFINE_UNQUOTED([LLVM_PATH_NEATO],"$NEATO${EXEEXT}",
1119 [Define to path to neato program if found or 'echo neato' otherwise])
1121 AC_PATH_PROG(TWOPI, [twopi], [echo twopi])
1122 if test "$TWOPI" != "echo twopi" ; then
1123 AC_DEFINE([HAVE_TWOPI],[1],[Define if the neat program is available])
1124 dnl If we're targeting for mingw we should emit windows paths, not msys
1125 if test "$llvm_cv_os_type" = "MingW" ; then
1126 TWOPI=`echo $TWOPI | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1128 AC_DEFINE_UNQUOTED([LLVM_PATH_TWOPI],"$TWOPI${EXEEXT}",
1129 [Define to path to twopi program if found or 'echo twopi' otherwise])
1131 AC_PATH_PROG(CIRCO, [circo], [echo circo])
1132 if test "$CIRCO" != "echo circo" ; then
1133 AC_DEFINE([HAVE_CIRCO],[1],[Define if the neat program is available])
1134 dnl If we're targeting for mingw we should emit windows paths, not msys
1135 if test "$llvm_cv_os_type" = "MingW" ; then
1136 CIRCO=`echo $CIRCO | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1138 AC_DEFINE_UNQUOTED([LLVM_PATH_CIRCO],"$CIRCO${EXEEXT}",
1139 [Define to path to circo program if found or 'echo circo' otherwise])
1141 AC_PATH_PROGS(GV, [gv gsview32], [echo gv])
1142 if test "$GV" != "echo gv" ; then
1143 AC_DEFINE([HAVE_GV],[1],[Define if the gv program is available])
1144 dnl If we're targeting for mingw we should emit windows paths, not msys
1145 if test "$llvm_cv_os_type" = "MingW" ; then
1146 GV=`echo $GV | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1148 AC_DEFINE_UNQUOTED([LLVM_PATH_GV],"$GV${EXEEXT}",
1149 [Define to path to gv program if found or 'echo gv' otherwise])
1151 AC_PATH_PROG(DOTTY, [dotty], [echo dotty])
1152 if test "$DOTTY" != "echo dotty" ; then
1153 AC_DEFINE([HAVE_DOTTY],[1],[Define if the dotty program is available])
1154 dnl If we're targeting for mingw we should emit windows paths, not msys
1155 if test "$llvm_cv_os_type" = "MingW" ; then
1156 DOTTY=`echo $DOTTY | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1158 AC_DEFINE_UNQUOTED([LLVM_PATH_DOTTY],"$DOTTY${EXEEXT}",
1159 [Define to path to dotty program if found or 'echo dotty' otherwise])
1161 AC_PATH_PROG(XDOT_PY, [xdot.py], [echo xdot.py])
1162 if test "$XDOT_PY" != "echo xdot.py" ; then
1163 AC_DEFINE([HAVE_XDOT_PY],[1],[Define if the xdot.py program is available])
1164 dnl If we're targeting for mingw we should emit windows paths, not msys
1165 if test "$llvm_cv_os_type" = "MingW" ; then
1166 XDOT_PY=`echo $XDOT_PY | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
1168 AC_DEFINE_UNQUOTED([LLVM_PATH_XDOT_PY],"$XDOT_PY${EXEEXT}",
1169 [Define to path to xdot.py program if found or 'echo xdot.py' otherwise])
1172 dnl Find the install program
1174 dnl Prepend src dir to install path dir if it's a relative path
1175 dnl This is a hack for installs that take place in something other
1176 dnl than the top level.
1178 [[\\/$]]* | ?:[[\\/]]* ) ;;
1179 *) INSTALL="\\\$(TOPSRCDIR)/$INSTALL" ;;
1182 dnl Checks for documentation and testing tools that we can do without. If these
1183 dnl are not found then they are set to "true" which always succeeds but does
1184 dnl nothing. This just lets the build output show that we could have done
1185 dnl something if the tool was available.
1186 AC_PATH_PROG(BZIP2, [bzip2])
1187 AC_PATH_PROG(CAT, [cat])
1188 AC_PATH_PROG(DOXYGEN, [doxygen])
1189 AC_PATH_PROG(GROFF, [groff])
1190 AC_PATH_PROG(GZIPBIN, [gzip])
1191 AC_PATH_PROG(PDFROFF, [pdfroff])
1192 AC_PATH_PROG(ZIP, [zip])
1193 AC_PATH_PROGS(OCAMLC, [ocamlc])
1194 AC_PATH_PROGS(OCAMLOPT, [ocamlopt])
1195 AC_PATH_PROGS(OCAMLDEP, [ocamldep])
1196 AC_PATH_PROGS(OCAMLDOC, [ocamldoc])
1197 AC_PATH_PROGS(GAS, [gas as])
1199 dnl Get the version of the linker in use.
1202 dnl Determine whether the linker supports the -R option.
1205 dnl Determine whether the linker supports the -export-dynamic option.
1206 AC_LINK_EXPORT_DYNAMIC
1208 dnl Determine whether the linker supports the --version-script option.
1209 AC_LINK_VERSION_SCRIPT
1211 dnl Check for libtool and the library that has dlopen function (which must come
1212 dnl before the AC_PROG_LIBTOOL check in order to enable dlopening libraries with
1217 AC_MSG_CHECKING([tool compatibility])
1219 dnl Ensure that compilation tools are GCC or a GNU compatible compiler such as
1220 dnl ICC; we use GCC specific options in the makefiles so the compiler needs
1221 dnl to support those options.
1222 dnl "icc" emits gcc signatures
1223 dnl "icc -no-gcc" emits no gcc signature BUT is still compatible
1235 if test "$GCC" != "yes" && test "$ICC" != "yes"
1237 AC_MSG_ERROR([gcc|icc required but not found])
1240 dnl Ensure that compilation tools are compatible with GCC extensions
1241 if test "$GXX" != "yes" && test "$IXX" != "yes"
1243 AC_MSG_ERROR([g++|clang++|icc required but not found])
1246 dnl Verify that GCC is version 3.0 or higher
1247 if test "$GCC" = "yes"
1252 #if !defined(__GNUC__) || __GNUC__ < 3
1253 #error Unsupported GCC version
1257 [], [AC_MSG_ERROR([gcc 3.x required, but you have a lower version])])
1260 dnl Check for GNU Make. We use its extensions, so don't build without it
1261 if test -z "$llvm_cv_gnu_make_command"
1263 AC_MSG_ERROR([GNU Make required but not found])
1266 dnl Tool compatibility is okay if we make it here.
1269 dnl Check optional compiler flags.
1270 AC_MSG_CHECKING([optional compiler flags])
1271 CXX_FLAG_CHECK(NO_VARIADIC_MACROS, [-Wno-variadic-macros])
1272 CXX_FLAG_CHECK(NO_MISSING_FIELD_INITIALIZERS, [-Wno-missing-field-initializers])
1273 CXX_FLAG_CHECK(COVERED_SWITCH_DEFAULT, [-Wcovered-switch-default])
1275 dnl GCC's potential uninitialized use analysis is weak and presents lots of
1276 dnl false positives, so disable it.
1278 NO_MAYBE_UNINITIALIZED=
1279 if test "$GXX" = "yes"
1281 CXX_FLAG_CHECK(NO_MAYBE_UNINITIALIZED, [-Wno-maybe-uninitialized])
1282 dnl gcc 4.7 introduced -Wmaybe-uninitialized to distinguish cases which are
1283 dnl known to be uninitialized from cases which might be uninitialized. We
1284 dnl still want to catch the first kind of errors.
1285 if test -z "$NO_MAYBE_UNINITIALIZED"
1287 CXX_FLAG_CHECK(NO_UNINITIALIZED, [-Wno-uninitialized])
1290 AC_MSG_RESULT([$NO_VARIADIC_MACROS $NO_MISSING_FIELD_INITIALIZERS $COVERED_SWITCH_DEFAULT $NO_UNINITIALIZED $NO_MAYBE_UNINITIALIZED])
1292 AC_ARG_WITH([python],
1293 [AS_HELP_STRING([--with-python], [path to python])],
1294 [PYTHON="$withval"])
1296 if test -n "$PYTHON" && test -x "$PYTHON" ; then
1297 AC_MSG_CHECKING([for python])
1298 AC_MSG_RESULT([user defined: $with_python])
1300 if test -n "$PYTHON" ; then
1301 AC_MSG_WARN([specified python ($PYTHON) is not usable, searching path])
1304 AC_PATH_PROG([PYTHON], [python python2 python26],
1305 [AC_MSG_RESULT([not found])
1306 AC_MSG_ERROR([could not find python 2.5 or higher])])
1309 AC_MSG_CHECKING([for python >= 2.5])
1310 ac_python_version=`$PYTHON -c 'import sys; print sys.version.split()[[0]]'`
1311 ac_python_version_major=`echo $ac_python_version | cut -d'.' -f1`
1312 ac_python_version_minor=`echo $ac_python_version | cut -d'.' -f2`
1313 ac_python_version_patch=`echo $ac_python_version | cut -d'.' -f3`
1314 if test "$ac_python_version_major" -eq "2" \
1315 && test "$ac_python_version_minor" -ge "5" ; then
1316 AC_MSG_RESULT([$PYTHON ($ac_python_version)])
1318 AC_MSG_RESULT([not found])
1319 AC_MSG_FAILURE([found python $ac_python_version ($PYTHON); required >= 2.5])
1322 dnl===-----------------------------------------------------------------------===
1324 dnl=== SECTION 5: Check for libraries
1326 dnl===-----------------------------------------------------------------------===
1329 if test "$llvm_cv_os_type" = "MingW" ; then
1330 AC_CHECK_LIB(imagehlp, main)
1331 AC_CHECK_LIB(psapi, main)
1334 dnl dlopen() is required for plugin support.
1335 AC_SEARCH_LIBS(dlopen,dl,AC_DEFINE([HAVE_DLOPEN],[1],
1336 [Define if dlopen() is available on this platform.]),
1337 AC_MSG_WARN([dlopen() not found - disabling plugin support]))
1339 dnl Search for the clock_gettime() function. Note that we rely on the POSIX
1340 dnl macros to detect whether clock_gettime is available, this just finds the
1341 dnl right libraries to link with.
1342 AC_SEARCH_LIBS(clock_gettime,rt)
1344 dnl libffi is optional; used to call external functions from the interpreter
1345 if test "$llvm_cv_enable_libffi" = "yes" ; then
1346 AC_SEARCH_LIBS(ffi_call,ffi,AC_DEFINE([HAVE_FFI_CALL],[1],
1347 [Define if libffi is available on this platform.]),
1348 AC_MSG_ERROR([libffi not found - configure without --enable-libffi to compile without it]))
1351 dnl mallinfo is optional; the code can compile (minus features) without it
1352 AC_SEARCH_LIBS(mallinfo,malloc,AC_DEFINE([HAVE_MALLINFO],[1],
1353 [Define if mallinfo() is available on this platform.]))
1355 dnl pthread locking functions are optional - but llvm will not be thread-safe
1357 if test "$LLVM_ENABLE_THREADS" -eq 1 && test "$ENABLE_PTHREADS" -eq 1 ; then
1358 AC_CHECK_LIB(pthread, pthread_mutex_init)
1359 AC_SEARCH_LIBS(pthread_mutex_lock,pthread,
1360 AC_DEFINE([HAVE_PTHREAD_MUTEX_LOCK],[1],
1361 [Have pthread_mutex_lock]))
1362 AC_SEARCH_LIBS(pthread_rwlock_init,pthread,
1363 AC_DEFINE([HAVE_PTHREAD_RWLOCK_INIT],[1],
1364 [Have pthread_rwlock_init]))
1365 AC_SEARCH_LIBS(pthread_getspecific,pthread,
1366 AC_DEFINE([HAVE_PTHREAD_GETSPECIFIC],[1],
1367 [Have pthread_getspecific]))
1370 dnl Allow extra x86-disassembler library
1372 AS_HELP_STRING([--with-udis86=<path>],
1373 [Use udis86 external x86 disassembler library]),
1375 AC_SUBST(USE_UDIS86, [1])
1378 *) LDFLAGS="$LDFLAGS -L${withval}" ;;
1380 AC_CHECK_LIB(udis86, ud_init, [], [
1381 echo "Error! You need to have libudis86 around."
1385 AC_SUBST(USE_UDIS86, [0]))
1386 AC_DEFINE_UNQUOTED([USE_UDIS86],$USE_UDIS86,
1387 [Define if use udis86 library])
1389 dnl Allow OProfile support for JIT output.
1390 AC_ARG_WITH(oprofile,
1391 AS_HELP_STRING([--with-oprofile=<prefix>],
1392 [Tell OProfile >= 0.9.4 how to symbolize JIT output]),
1394 AC_SUBST(USE_OPROFILE, [1])
1396 /usr|yes) llvm_cv_oppath=/usr/lib/oprofile ;;
1398 AC_SUBST(USE_OPROFILE, [0]) ;;
1399 *) llvm_cv_oppath="${withval}/lib/oprofile"
1400 CPPFLAGS="-I${withval}/include";;
1402 case $llvm_cv_os_type in
1404 if test -n "$llvm_cv_oppath" ; then
1405 LIBS="$LIBS -lopagent -L${llvm_cv_oppath} -Wl,-rpath,${llvm_cv_oppath}"
1406 dnl Work around http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=537744:
1407 dnl libbfd is not included properly in libopagent in some Debian
1408 dnl versions. If libbfd isn't found at all, we assume opagent works
1410 AC_SEARCH_LIBS(bfd_init, bfd, [], [])
1411 AC_SEARCH_LIBS(op_open_agent, opagent, [], [
1412 echo "Error! You need to have libopagent around."
1415 AC_CHECK_HEADER([opagent.h], [], [
1416 echo "Error! You need to have opagent.h around."
1421 AC_MSG_ERROR([OProfile support is available on Linux only.]) ;;
1425 AC_SUBST(USE_OPROFILE, [0])
1427 AC_DEFINE_UNQUOTED([LLVM_USE_OPROFILE],$USE_OPROFILE,
1428 [Define if we have the oprofile JIT-support library])
1430 dnl Enable support for Intel JIT Events API.
1431 AC_ARG_WITH(intel-jitevents,
1432 AS_HELP_STRING([--with-intel-jitevents Notify Intel JIT profiling API of generated code]),
1435 yes) AC_SUBST(USE_INTEL_JITEVENTS,[1]);;
1436 no) AC_SUBST(USE_INTEL_JITEVENTS,[0]);;
1437 *) AC_MSG_ERROR([Invalid setting for --with-intel-jitevents. Use "yes" or "no"]);;
1440 case $llvm_cv_os_type in
1441 Linux|Win32|Cygwin|MingW) ;;
1442 *) AC_MSG_ERROR([Intel JIT API support is available on Linux and Windows only.]);;
1445 case "$llvm_cv_target_arch" in
1447 *) AC_MSG_ERROR([Target architecture $llvm_cv_target_arch does not support Intel JIT Events API.]);;
1451 AC_SUBST(USE_INTEL_JITEVENTS, [0])
1453 AC_DEFINE_UNQUOTED([LLVM_USE_INTEL_JITEVENTS],$USE_INTEL_JITEVENTS,
1454 [Define if we have the Intel JIT API runtime support library])
1456 dnl Check for libxml2
1457 dnl Right now we're just checking for the existence, we could also check for a
1458 dnl particular version via --version on xml2-config
1459 AC_CHECK_PROGS(XML2CONFIG, xml2-config)
1461 AC_MSG_CHECKING(for libxml2 includes)
1462 if test "x$XML2CONFIG" = "x"; then
1463 AC_MSG_RESULT(xml2-config not found)
1465 LIBXML2_INC=`$XML2CONFIG --cflags`
1466 AC_MSG_RESULT($LIBXML2_INC)
1467 AC_CHECK_LIB(xml2, xmlReadFile,[AC_DEFINE([CLANG_HAVE_LIBXML],1,[Define if we have libxml2])
1468 LIBXML2_LIBS="-lxml2"])
1470 AC_SUBST(LIBXML2_LIBS)
1471 AC_SUBST(LIBXML2_INC)
1473 dnl===-----------------------------------------------------------------------===
1475 dnl=== SECTION 6: Check for header files
1477 dnl===-----------------------------------------------------------------------===
1479 dnl First, use autoconf provided macros for specific headers that we need
1480 dnl We don't check for ancient stuff or things that are guaranteed to be there
1481 dnl by the C++ standard. We always use the <cfoo> versions of <foo.h> C headers.
1482 dnl Generally we're looking for POSIX headers.
1484 AC_HEADER_MMAP_ANONYMOUS
1489 AC_CHECK_HEADERS([dlfcn.h execinfo.h fcntl.h inttypes.h limits.h link.h])
1490 AC_CHECK_HEADERS([malloc.h setjmp.h signal.h stdint.h termios.h unistd.h])
1491 AC_CHECK_HEADERS([utime.h windows.h])
1492 AC_CHECK_HEADERS([sys/mman.h sys/param.h sys/resource.h sys/time.h sys/uio.h])
1493 AC_CHECK_HEADERS([sys/types.h sys/ioctl.h malloc/malloc.h mach/mach.h])
1494 AC_CHECK_HEADERS([valgrind/valgrind.h])
1495 AC_CHECK_HEADERS([fenv.h])
1496 if test "$LLVM_ENABLE_THREADS" -eq 1 && test "$ENABLE_PTHREADS" -eq 1 ; then
1497 AC_CHECK_HEADERS(pthread.h,
1498 AC_SUBST(HAVE_PTHREAD, 1),
1499 AC_SUBST(HAVE_PTHREAD, 0))
1501 AC_SUBST(HAVE_PTHREAD, 0)
1504 dnl Try to find ffi.h.
1505 if test "$llvm_cv_enable_libffi" = "yes" ; then
1506 AC_CHECK_HEADERS([ffi.h ffi/ffi.h])
1509 dnl Try to find Darwin specific crash reporting libraries.
1510 AC_CHECK_HEADERS([CrashReporterClient.h])
1512 dnl Try to find Darwin specific crash reporting global.
1513 AC_MSG_CHECKING([__crashreporter_info__])
1517 extern const char *__crashreporter_info__;
1519 __crashreporter_info__ = "test";
1525 AC_MSG_RESULT([yes])
1526 AC_DEFINE([HAVE_CRASHREPORTER_INFO], [1], [can use __crashreporter_info__])
1530 AC_DEFINE([HAVE_CRASHREPORTER_INFO], [0], [can use __crashreporter_info__])
1533 dnl===-----------------------------------------------------------------------===
1535 dnl=== SECTION 7: Check for types and structures
1537 dnl===-----------------------------------------------------------------------===
1542 AC_DEFINE_UNQUOTED([RETSIGTYPE],[void],[Define as the return type of signal handlers (`int' or `void').])
1544 AC_CHECK_TYPES([int64_t],,AC_MSG_ERROR([Type int64_t required but not found]))
1545 AC_CHECK_TYPES([uint64_t],,
1546 AC_CHECK_TYPES([u_int64_t],,
1547 AC_MSG_ERROR([Type uint64_t or u_int64_t required but not found])))
1549 dnl===-----------------------------------------------------------------------===
1551 dnl=== SECTION 8: Check for specific functions needed
1553 dnl===-----------------------------------------------------------------------===
1555 AC_CHECK_FUNCS([backtrace ceilf floorf roundf rintf nearbyintf getcwd ])
1556 AC_CHECK_FUNCS([powf fmodf strtof round ])
1557 AC_CHECK_FUNCS([log log2 log10 exp exp2])
1558 AC_CHECK_FUNCS([getpagesize getrusage getrlimit setrlimit gettimeofday ])
1559 AC_CHECK_FUNCS([isatty mkdtemp mkstemp ])
1560 AC_CHECK_FUNCS([mktemp posix_spawn pread realpath sbrk setrlimit strdup ])
1561 AC_CHECK_FUNCS([strerror strerror_r setenv arc4random ])
1562 AC_CHECK_FUNCS([strtoll strtoq sysconf malloc_zone_statistics ])
1563 AC_CHECK_FUNCS([setjmp longjmp sigsetjmp siglongjmp writev])
1567 dnl Check the declaration "Secure API" on Windows environments.
1568 AC_CHECK_DECLS([strerror_s])
1570 dnl Check symbols in libgcc.a for JIT on Mingw.
1571 if test "$llvm_cv_os_type" = "MingW" ; then
1572 AC_CHECK_LIB(gcc,_alloca,AC_DEFINE([HAVE__ALLOCA],[1],[Have host's _alloca]))
1573 AC_CHECK_LIB(gcc,__alloca,AC_DEFINE([HAVE___ALLOCA],[1],[Have host's __alloca]))
1574 AC_CHECK_LIB(gcc,__chkstk,AC_DEFINE([HAVE___CHKSTK],[1],[Have host's __chkstk]))
1575 AC_CHECK_LIB(gcc,___chkstk,AC_DEFINE([HAVE____CHKSTK],[1],[Have host's ___chkstk]))
1577 AC_CHECK_LIB(gcc,__ashldi3,AC_DEFINE([HAVE___ASHLDI3],[1],[Have host's __ashldi3]))
1578 AC_CHECK_LIB(gcc,__ashrdi3,AC_DEFINE([HAVE___ASHRDI3],[1],[Have host's __ashrdi3]))
1579 AC_CHECK_LIB(gcc,__divdi3,AC_DEFINE([HAVE___DIVDI3],[1],[Have host's __divdi3]))
1580 AC_CHECK_LIB(gcc,__fixdfdi,AC_DEFINE([HAVE___FIXDFDI],[1],[Have host's __fixdfdi]))
1581 AC_CHECK_LIB(gcc,__fixsfdi,AC_DEFINE([HAVE___FIXSFDI],[1],[Have host's __fixsfdi]))
1582 AC_CHECK_LIB(gcc,__floatdidf,AC_DEFINE([HAVE___FLOATDIDF],[1],[Have host's __floatdidf]))
1583 AC_CHECK_LIB(gcc,__lshrdi3,AC_DEFINE([HAVE___LSHRDI3],[1],[Have host's __lshrdi3]))
1584 AC_CHECK_LIB(gcc,__moddi3,AC_DEFINE([HAVE___MODDI3],[1],[Have host's __moddi3]))
1585 AC_CHECK_LIB(gcc,__udivdi3,AC_DEFINE([HAVE___UDIVDI3],[1],[Have host's __udivdi3]))
1586 AC_CHECK_LIB(gcc,__umoddi3,AC_DEFINE([HAVE___UMODDI3],[1],[Have host's __umoddi3]))
1588 AC_CHECK_LIB(gcc,__main,AC_DEFINE([HAVE___MAIN],[1],[Have host's __main]))
1589 AC_CHECK_LIB(gcc,__cmpdi2,AC_DEFINE([HAVE___CMPDI2],[1],[Have host's __cmpdi2]))
1592 dnl Check Win32 API EnumerateLoadedModules.
1593 if test "$llvm_cv_os_type" = "MingW" ; then
1594 AC_MSG_CHECKING([whether EnumerateLoadedModules() accepts new decl])
1598 #include <windows.h>
1599 #include <imagehlp.h>
1600 extern void foo(PENUMLOADED_MODULES_CALLBACK);
1601 extern void foo(BOOL(CALLBACK*)(PCSTR,ULONG_PTR,ULONG,PVOID));
1605 AC_MSG_RESULT([yes])
1606 llvm_cv_win32_elmcb_pcstr="PCSTR"
1610 llvm_cv_win32_elmcb_pcstr="PSTR"
1612 AC_DEFINE_UNQUOTED([WIN32_ELMCB_PCSTR],$llvm_cv_win32_elmcb_pcstr,[Type of 1st arg on ELM Callback])
1615 dnl Check for variations in the Standard C++ library and STL. These macros are
1616 dnl provided by LLVM in the autoconf/m4 directory.
1620 dnl Check for mmap support.We also need to know if /dev/zero is required to
1621 dnl be opened for allocating RWX memory.
1622 dnl Make sure we aren't attempting to configure for an unknown system
1623 if test "$llvm_cv_platform_type" = "Unix" ; then
1626 AC_NEED_DEV_ZERO_FOR_MMAP
1628 if test "$ac_cv_func_mmap_fixed_mapped" = "no"
1630 AC_MSG_WARN([mmap() of a fixed address required but not supported])
1632 if test "$ac_cv_func_mmap_file" = "no"
1634 AC_MSG_WARN([mmap() of files required but not found])
1638 dnl atomic builtins are required for threading support.
1639 AC_MSG_CHECKING(for GCC atomic builtins)
1640 dnl Since we'll be using these atomic builtins in C++ files we should test
1641 dnl the C++ compiler.
1647 volatile unsigned long val = 1;
1648 __sync_synchronize();
1649 __sync_val_compare_and_swap(&val, 1, 0);
1650 __sync_add_and_fetch(&val, 1);
1651 __sync_sub_and_fetch(&val, 1);
1657 AC_MSG_RESULT([yes])
1658 AC_DEFINE([LLVM_HAS_ATOMICS], [1], [Has gcc/MSVC atomic intrinsics])
1662 AC_DEFINE([LLVM_HAS_ATOMICS], [0], [Has gcc/MSVC atomic intrinsics])
1663 AC_MSG_WARN([LLVM will be built thread-unsafe because atomic builtins are missing])
1667 dnl===-----------------------------------------------------------------------===
1669 dnl=== SECTION 9: Additional checks, variables, etc.
1671 dnl===-----------------------------------------------------------------------===
1673 dnl Handle 32-bit linux systems running a 64-bit kernel.
1674 dnl This has to come after section 4 because it invokes the compiler.
1675 if test "$llvm_cv_os_type" = "Linux" -a "$llvm_cv_target_arch" = "x86_64" ; then
1677 if test "$llvm_cv_linux_mixed" = "yes"; then
1678 llvm_cv_target_arch="x86"
1683 dnl Check whether __dso_handle is present
1684 AC_CHECK_FUNCS([__dso_handle])
1686 dnl Propagate the shared library extension that the libltdl checks did to
1687 dnl the Makefiles so we can use it there too
1688 AC_SUBST(SHLIBEXT,$libltdl_cv_shlibext)
1690 dnl Propagate the run-time library path variable that the libltdl
1691 dnl checks found to the Makefiles so we can use it there too
1692 AC_SUBST(SHLIBPATH_VAR,$libltdl_cv_shlibpath_var)
1694 dnl Translate the various configuration directories and other basic
1695 dnl information into substitutions that will end up in Makefile.config.in
1696 dnl that these configured values can be used by the makefiles
1697 if test "${prefix}" = "NONE" ; then
1700 eval LLVM_PREFIX="${prefix}";
1701 eval LLVM_BINDIR="${prefix}/bin";
1702 eval LLVM_LIBDIR="${prefix}/lib";
1703 eval LLVM_DATADIR="${prefix}/share/llvm";
1704 eval LLVM_DOCSDIR="${prefix}/share/doc/llvm";
1705 eval LLVM_ETCDIR="${prefix}/etc/llvm";
1706 eval LLVM_INCLUDEDIR="${prefix}/include";
1707 eval LLVM_INFODIR="${prefix}/info";
1708 eval LLVM_MANDIR="${prefix}/man";
1709 LLVM_CONFIGTIME=`date`
1710 AC_SUBST(LLVM_PREFIX)
1711 AC_SUBST(LLVM_BINDIR)
1712 AC_SUBST(LLVM_LIBDIR)
1713 AC_SUBST(LLVM_DATADIR)
1714 AC_SUBST(LLVM_DOCSDIR)
1715 AC_SUBST(LLVM_ETCDIR)
1716 AC_SUBST(LLVM_INCLUDEDIR)
1717 AC_SUBST(LLVM_INFODIR)
1718 AC_SUBST(LLVM_MANDIR)
1719 AC_SUBST(LLVM_CONFIGTIME)
1721 dnl Disable embedding timestamps in the build directory, with ENABLE_TIMESTAMPS.
1722 if test "${ENABLE_TIMESTAMPS}" = "0"; then
1723 LLVM_CONFIGTIME="(timestamp not enabled)"
1726 dnl Place the various directories into the config.h file as #defines so that we
1727 dnl can know about the installation paths within LLVM.
1728 AC_DEFINE_UNQUOTED(LLVM_PREFIX,"$LLVM_PREFIX",
1729 [Installation prefix directory])
1730 AC_DEFINE_UNQUOTED(LLVM_BINDIR, "$LLVM_BINDIR",
1731 [Installation directory for binary executables])
1732 AC_DEFINE_UNQUOTED(LLVM_LIBDIR, "$LLVM_LIBDIR",
1733 [Installation directory for libraries])
1734 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DATADIR",
1735 [Installation directory for data files])
1736 AC_DEFINE_UNQUOTED(LLVM_DOCSDIR, "$LLVM_DOCSDIR",
1737 [Installation directory for documentation])
1738 AC_DEFINE_UNQUOTED(LLVM_ETCDIR, "$LLVM_ETCDIR",
1739 [Installation directory for config files])
1740 AC_DEFINE_UNQUOTED(LLVM_INCLUDEDIR, "$LLVM_INCLUDEDIR",
1741 [Installation directory for include files])
1742 AC_DEFINE_UNQUOTED(LLVM_INFODIR, "$LLVM_INFODIR",
1743 [Installation directory for .info files])
1744 AC_DEFINE_UNQUOTED(LLVM_MANDIR, "$LLVM_MANDIR",
1745 [Installation directory for man pages])
1746 AC_DEFINE_UNQUOTED(LLVM_CONFIGTIME, "$LLVM_CONFIGTIME",
1747 [Time at which LLVM was configured])
1748 AC_DEFINE_UNQUOTED(LLVM_HOSTTRIPLE, "$host",
1749 [Host triple LLVM will be executed on])
1750 AC_DEFINE_UNQUOTED(LLVM_DEFAULT_TARGET_TRIPLE, "$target",
1751 [Target triple LLVM will generate code for by default])
1753 dnl Determine which bindings to build.
1754 if test "$BINDINGS_TO_BUILD" = auto ; then
1755 BINDINGS_TO_BUILD=""
1756 if test "x$OCAMLC" != x -a "x$OCAMLDEP" != x ; then
1757 BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD"
1760 AC_SUBST(BINDINGS_TO_BUILD,$BINDINGS_TO_BUILD)
1762 dnl This isn't really configurey, but it avoids having to repeat the list in
1764 AC_SUBST(ALL_BINDINGS,ocaml)
1766 dnl Do any work necessary to ensure that bindings have what they need.
1767 binding_prereqs_failed=0
1768 for a_binding in $BINDINGS_TO_BUILD ; do
1769 case "$a_binding" in
1771 if test "x$OCAMLC" = x ; then
1772 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlc not found. Try configure OCAMLC=/path/to/ocamlc])
1773 binding_prereqs_failed=1
1775 if test "x$OCAMLDEP" = x ; then
1776 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamldep not found. Try configure OCAMLDEP=/path/to/ocamldep])
1777 binding_prereqs_failed=1
1779 if test "x$OCAMLOPT" = x ; then
1780 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlopt not found. Try configure OCAMLOPT=/path/to/ocamlopt])
1781 dnl ocamlopt is optional!
1783 if test "x$with_ocaml_libdir" != xauto ; then
1784 AC_SUBST(OCAML_LIBDIR,$with_ocaml_libdir)
1786 ocaml_stdlib="`"$OCAMLC" -where`"
1787 if test "$LLVM_PREFIX" '<' "$ocaml_stdlib" -a "$ocaml_stdlib" '<' "$LLVM_PREFIX~"
1789 # ocaml stdlib is beneath our prefix; use stdlib
1790 AC_SUBST(OCAML_LIBDIR,$ocaml_stdlib)
1792 # ocaml stdlib is outside our prefix; use libdir/ocaml
1793 AC_SUBST(OCAML_LIBDIR,$LLVM_LIBDIR/ocaml)
1799 if test "$binding_prereqs_failed" = 1 ; then
1800 AC_MSG_ERROR([Prequisites for bindings not satisfied. Fix them or use configure --disable-bindings.])
1803 dnl Determine whether the compiler supports -fvisibility-inlines-hidden.
1804 AC_CXX_USE_VISIBILITY_INLINES_HIDDEN
1806 dnl Determine linker rpath flag
1807 if test "$llvm_cv_link_use_r" = "yes" ; then
1814 dnl Determine linker rdynamic flag
1815 if test "$llvm_cv_link_use_export_dynamic" = "yes" ; then
1816 RDYNAMIC="-Wl,-export-dynamic"
1822 dnl===-----------------------------------------------------------------------===
1824 dnl=== SECTION 10: Specify the output files and generate it
1826 dnl===-----------------------------------------------------------------------===
1828 dnl Configure header files
1829 dnl WARNING: dnl If you add or remove any of the following config headers, then
1830 dnl you MUST also update Makefile so that the variable FilesToConfig
1831 dnl contains the same list of files as AC_CONFIG_HEADERS below. This ensures the
1832 dnl files can be updated automatically when their *.in sources change.
1833 AC_CONFIG_HEADERS([include/llvm/Config/config.h include/llvm/Config/llvm-config.h])
1834 AH_TOP([#ifndef CONFIG_H
1838 AC_CONFIG_FILES([include/llvm/Config/Targets.def])
1839 AC_CONFIG_FILES([include/llvm/Config/AsmPrinters.def])
1840 AC_CONFIG_FILES([include/llvm/Config/AsmParsers.def])
1841 AC_CONFIG_FILES([include/llvm/Config/Disassemblers.def])
1842 AC_CONFIG_HEADERS([include/llvm/Support/DataTypes.h])
1844 dnl Configure the makefile's configuration data
1845 AC_CONFIG_FILES([Makefile.config])
1847 dnl Configure the RPM spec file for LLVM
1848 AC_CONFIG_FILES([llvm.spec])
1850 dnl Configure doxygen's configuration file
1851 AC_CONFIG_FILES([docs/doxygen.cfg])
1853 dnl Configure clang, if present
1854 if test "${clang_src_root}" = ""; then
1855 clang_src_root="$srcdir/tools/clang"
1857 if test -f ${clang_src_root}/README.txt; then
1858 dnl Use variables to stay under 80 columns.
1859 configh="include/clang/Config/config.h"
1860 doxy="docs/doxygen.cfg"
1861 AC_CONFIG_HEADERS([tools/clang/${configh}:${clang_src_root}/${configh}.in])
1862 AC_CONFIG_FILES([tools/clang/${doxy}:${clang_src_root}/${doxy}.in])
1865 dnl OCaml findlib META file
1866 AC_CONFIG_FILES([bindings/ocaml/llvm/META.llvm])
1868 dnl Add --program-prefix value to Makefile.rules. Already an ARG variable.
1869 test "x$program_prefix" = "xNONE" && program_prefix=""
1870 AC_SUBST([program_prefix])
1873 dnl Do special configuration of Makefiles
1874 AC_CONFIG_COMMANDS([setup],,[llvm_src="${srcdir}"])
1875 AC_CONFIG_MAKEFILE(Makefile)
1876 AC_CONFIG_MAKEFILE(Makefile.common)
1877 AC_CONFIG_MAKEFILE(examples/Makefile)
1878 AC_CONFIG_MAKEFILE(lib/Makefile)
1879 AC_CONFIG_MAKEFILE(runtime/Makefile)
1880 AC_CONFIG_MAKEFILE(test/Makefile)
1881 AC_CONFIG_MAKEFILE(test/Makefile.tests)
1882 AC_CONFIG_MAKEFILE(unittests/Makefile)
1883 AC_CONFIG_MAKEFILE(tools/Makefile)
1884 AC_CONFIG_MAKEFILE(utils/Makefile)
1885 AC_CONFIG_MAKEFILE(projects/Makefile)
1886 AC_CONFIG_MAKEFILE(bindings/Makefile)
1887 AC_CONFIG_MAKEFILE(bindings/ocaml/Makefile.ocaml)
1889 dnl Finally, crank out the output