1 dnl === configure.ac --------------------------------------------------------===
2 dnl The LLVM Compiler Infrastructure
4 dnl This file was developed by the LLVM research group and is distributed under
5 dnl the University of Illinois Open Source 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 email address for reporting bugs.
34 AC_INIT([[llvm]],[[1.8cvs]],[llvmbugs@cs.uiuc.edu])
36 dnl Provide a copyright substitution and ensure the copyright notice is included
37 dnl in the output of --version option of the generated configure script.
38 AC_SUBST(LLVM_COPYRIGHT,["Copyright (c) 2003-2005 University of Illinois at Urbana-Champaign."])
39 AC_COPYRIGHT([Copyright (c) 2003-2005 University of Illinois at Urbana-Champaign.])
41 dnl Indicate that we require autoconf 2.59 or later. Ths is needed because we
42 dnl use some autoconf macros only available in 2.59.
45 dnl Verify that the source directory is valid. This makes sure that we are
46 dnl configuring LLVM and not some other package (it validates --srcdir argument)
47 AC_CONFIG_SRCDIR([lib/VMCore/Module.cpp])
49 dnl Place all of the extra autoconf files into the config subdirectory. Tell
50 dnl various tools where the m4 autoconf macros are.
51 AC_CONFIG_AUX_DIR([autoconf])
53 dnl Quit if the source directory has already been configured.
54 dnl NOTE: This relies upon undocumented autoconf behavior.
55 if test ${srcdir} != "." ; then
56 if test -f ${srcdir}/include/llvm/Config/config.h ; then
57 AC_MSG_ERROR([Already configured in ${srcdir}])
61 dnl Configure all of the projects present in our source tree. While we could
62 dnl just AC_CONFIG_SUBDIRS on the set of directories in projects that have a
63 dnl configure script, that usage of the AC_CONFIG_SUBDIRS macro is deprecated.
64 dnl Instead we match on the known projects.
65 for i in `ls ${srcdir}/projects`
67 if test -d ${srcdir}/projects/${i} ; then
70 "sample") AC_CONFIG_SUBDIRS([projects/sample]) ;;
71 "Stacker") AC_CONFIG_SUBDIRS([projects/Stacker]) ;;
72 "llvm-test") AC_CONFIG_SUBDIRS([projects/llvm-test]) ;;
73 "llvm-reopt") AC_CONFIG_SUBDIRS([projects/llvm-reopt]);;
74 "llvm-gcc") AC_CONFIG_SUBDIRS([projects/llvm-gcc]) ;;
75 "llvm-java") AC_CONFIG_SUBDIRS([projects/llvm-java]) ;;
76 "llvm-tv") AC_CONFIG_SUBDIRS([projects/llvm-tv]) ;;
77 "llvm-poolalloc") AC_CONFIG_SUBDIRS([projects/llvm-poolalloc]) ;;
78 "llvm-kernel") AC_CONFIG_SUBDIRS([projects/llvm-kernel]) ;;
80 AC_MSG_WARN([Unknown project (${i}) won't be configured automatically])
86 dnl===-----------------------------------------------------------------------===
88 dnl=== SECTION 2: Architecture, target, and host checks
90 dnl===-----------------------------------------------------------------------===
92 dnl Check the target for which we're compiling and the host that will do the
93 dnl compilations. This will tell us which LLVM compiler will be used for
94 dnl compiling SSA into object code. This needs to be done early because
95 dnl following tests depend on it.
98 dnl Determine the platform type and cache its value. This helps us configure
99 dnl the System library to the correct build platform.
100 AC_CACHE_CHECK([type of operating system we're on],
104 llvm_cv_os_type="AIX"
105 llvm_cv_platform_type="Unix" ;;
107 llvm_cv_os_type="Cygwin"
108 llvm_cv_platform_type="Unix" ;;
110 llvm_cv_os_type="Darwin"
111 llvm_cv_platform_type="Unix" ;;
113 llvm_cv_os_type="FreeBSD"
114 llvm_cv_platform_type="Unix" ;;
116 llvm_cv_os_type="OpenBSD"
117 llvm_cv_platform_type="Unix" ;;
119 llvm_cv_os_type="HP-UX"
120 llvm_cv_platform_type="Unix" ;;
122 llvm_cv_os_type="Interix"
123 llvm_cv_platform_type="Unix" ;;
125 llvm_cv_os_type="Linux"
126 llvm_cv_platform_type="Unix" ;;
128 llvm_cv_os_type="SunOS"
129 llvm_cv_platform_type="Unix" ;;
131 llvm_cv_os_type="Win32"
132 llvm_cv_platform_type="Win32" ;;
134 llvm_cv_os_type="MingW"
135 llvm_cv_platform_type="Win32" ;;
137 llvm_cv_os_type="Unknown"
138 llvm_cv_platform_type="Unknown" ;;
141 dnl Make sure we aren't attempting to configure for an unknown system
142 if test "$llvm_cv_os_type" = "Unknown" ; then
143 AC_MSG_ERROR([Operating system is unknown, configure can't continue])
146 dnl Set the "OS" Makefile variable based on the platform type so the
147 dnl makefile can configure itself to specific build hosts
148 AC_SUBST(OS,$llvm_cv_os_type)
150 dnl Set the "LLVM_ON_*" variables based on llvm_cvs_platform_type
151 dnl This is used by lib/System to determine the basic kind of implementation
153 case $llvm_cv_platform_type in
155 AC_DEFINE([LLVM_ON_UNIX],[1],[Define if this is Unixish platform])
156 AC_SUBST(LLVM_ON_UNIX,[1])
157 AC_SUBST(LLVM_ON_WIN32,[0])
160 AC_DEFINE([LLVM_ON_WIN32],[1],[Define if this is Win32ish platform])
161 AC_SUBST(LLVM_ON_UNIX,[0])
162 AC_SUBST(LLVM_ON_WIN32,[1])
166 dnl Determine what our target architecture is and configure accordingly.
167 dnl This will allow Makefiles to make a distinction between the hardware and
169 AC_CACHE_CHECK([target architecture],[llvm_cv_target_arch],
171 i?86-*) llvm_cv_target_arch="x86" ;;
172 amd64-* | x86_64-*) llvm_cv_target_arch="x86_64" ;;
173 sparc*-*) llvm_cv_target_arch="Sparc" ;;
174 powerpc*-*) llvm_cv_target_arch="PowerPC" ;;
175 alpha*-*) llvm_cv_target_arch="Alpha" ;;
176 ia64-*) llvm_cv_target_arch="IA64" ;;
177 *) llvm_cv_target_arch="Unknown" ;;
180 if test "$llvm_cv_target_arch" = "Unknown" ; then
181 AC_MSG_WARN([Configuring LLVM for an unknown target archicture])
184 dnl Define a substitution, ARCH, for the target architecture
185 AC_SUBST(ARCH,$llvm_cv_target_arch)
187 dnl Check for the endianness of the target
188 AC_C_BIGENDIAN(AC_SUBST([ENDIAN],[big]),AC_SUBST([ENDIAN],[little]))
190 dnl Check to see if there's a "CVS" directory indicating that this build is
191 dnl being done from a CVS checkout. This sets up several defaults for the
192 dnl command line switches. When we build with a CVS directory, we get a
193 dnl debug with assertions turned on. Without, we assume a source release and we
194 dnl get an optimized build without assertions. See --enable-optimized and
195 dnl --enable-assertions below
196 if test -d "CVS" -o -d "${srcdir}/CVS"; then
199 AC_SUBST(CVSBUILD,[[CVSBUILD=1]])
205 dnl===-----------------------------------------------------------------------===
207 dnl=== SECTION 3: Command line arguments for the configure script.
209 dnl===-----------------------------------------------------------------------===
211 dnl --enable-optimized : check whether they want to do an optimized build:
212 AC_ARG_ENABLE(optimized, AS_HELP_STRING(
213 [--enable-optimized,Compile with optimizations enabled (default is NO)]),,enableval=$optimize)
214 if test ${enableval} = "no" ; then
215 AC_SUBST(ENABLE_OPTIMIZED,[[]])
217 AC_SUBST(ENABLE_OPTIMIZED,[[ENABLE_OPTIMIZED=1]])
220 dnl --enable-assertions : check whether they want to turn on assertions or not:
221 AC_ARG_ENABLE(assertions,AS_HELP_STRING(
222 [--enable-assertions,Compile with assertion checks enabled (default is YES)]),, enableval="yes")
223 if test ${enableval} = "yes" ; then
224 AC_SUBST(DISABLE_ASSERTIONS,[[]])
226 AC_SUBST(DISABLE_ASSERTIONS,[[DISABLE_ASSERTIONS=1]])
229 dnl --enable-debug-runtime : should runtime libraries have debug symbols?
230 AC_ARG_ENABLE(debug-runtime,
231 AS_HELP_STRING([--enable-debug-runtime,Build runtime libs with debug symbols (default is NO)]),,enableval=no)
232 if test ${enableval} = "no" ; then
233 AC_SUBST(DEBUG_RUNTIME,[[]])
235 AC_SUBST(DEBUG_RUNTIME,[[DEBUG_RUNTIME=1]])
238 dnl --enable-jit: check whether they want to enable the jit
240 AS_HELP_STRING(--enable-jit,
241 [Enable Just In Time Compiling (default is YES)]),,
243 if test ${enableval} = "no"
247 case "$llvm_cv_target_arch" in
248 x86) AC_SUBST(TARGET_HAS_JIT,1) ;;
249 Sparc) AC_SUBST(TARGET_HAS_JIT,1) ;;
250 PowerPC) AC_SUBST(TARGET_HAS_JIT,1) ;;
251 x86_64) AC_SUBST(TARGET_HAS_JIT,0) ;;
252 Alpha) AC_SUBST(TARGET_HAS_JIT,1) ;;
253 IA64) AC_SUBST(TARGET_HAS_JIT,0) ;;
254 *) AC_SUBST(TARGET_HAS_JIT,0) ;;
258 dnl Allow enablement of doxygen generated documentation
259 AC_ARG_ENABLE(doxygen,
260 AS_HELP_STRING([--enable-doxygen],
261 [Build doxygen documentation (default is NO)]),,
264 yes) AC_SUBST(ENABLE_DOXYGEN,[1]) ;;
265 no) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
266 default) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
267 *) AC_MSG_ERROR([Invalid setting for --enable-doxygen. Use "yes" or "no"]) ;;
270 dnl Allow disablement of threads
271 AC_ARG_ENABLE(threads,
272 AS_HELP_STRING([--enable-threads],
273 [Use threads if available (default is YES)]),,
276 yes) AC_SUBST(ENABLE_THREADS,[1]) ;;
277 no) AC_SUBST(ENABLE_THREADS,[0]) ;;
278 *) AC_MSG_ERROR([Invalid setting for --enable-threads. Use "yes" or "no"]) ;;
280 AC_DEFINE_UNQUOTED([ENABLE_THREADS],$ENABLE_THREADS,[Define if threads enabled])
282 dnl Allow specific targets to be specified for building (or not)
284 AC_ARG_ENABLE([targets],AS_HELP_STRING([--enable-target],
285 [Build specific host targets: all,host-only,{target-name} (default=all)]),,
288 all) TARGETS_TO_BUILD="X86 Sparc PowerPC Alpha IA64 ARM" ;;
290 case "$llvm_cv_target_arch" in
291 x86) TARGETS_TO_BUILD="X86" ;;
292 x86_64) TARGETS_TO_BUILD="X86" ;;
293 Sparc) TARGETS_TO_BUILD="Sparc" ;;
294 PowerPC) TARGETS_TO_BUILD="PowerPC" ;;
295 Alpha) TARGETS_TO_BUILD="Alpha" ;;
296 IA64) TARGETS_TO_BUILD="IA64" ;;
297 *) AC_MSG_ERROR([Can not set target to build]) ;;
300 *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
302 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
303 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
304 sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
305 powerpc) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
306 alpha) TARGETS_TO_BUILD="Alpha $TARGETS_TO_BUILD" ;;
307 ia64) TARGETS_TO_BUILD="IA64 $TARGETS_TO_BUILD" ;;
308 *) AC_MSG_ERROR([Unrecognized target $a_target]) ;;
313 TARGETS_TO_BUILD="CBackend $TARGETS_TO_BUILD"
314 AC_SUBST(TARGETS_TO_BUILD,$TARGETS_TO_BUILD)
316 dnl Allow a specific llvm-gcc/llvm-g++ pair to be used with this LLVM config.
317 AC_ARG_WITH(llvmgccdir,
318 AS_HELP_STRING([--with-llvmgccdir],
319 [Specify location of llvm-gcc install dir (default searches PATH)]),,
322 default) WITH_LLVMGCCDIR=default ;;
323 /* | [[A-Za-z]]:[[\\/]]*) WITH_LLVMGCCDIR=$withval ;;
324 *) AC_MSG_ERROR([Invalid path for --with-llvmgccdir. Provide full path]) ;;
328 dnl===-----------------------------------------------------------------------===
330 dnl=== SECTION 4: Check for programs we need and that they are the right version
332 dnl===-----------------------------------------------------------------------===
334 dnl Check for compilation tools
341 dnl Check for the tools that the makefiles require
344 AC_PATH_PROG(CMP, [cmp], [cmp])
345 AC_PATH_PROG(CP, [cp], [cp])
346 AC_PATH_PROG(DATE, [date], [date])
347 AC_PATH_PROG(FIND, [find], [find])
348 AC_PATH_PROG(GREP, [grep], [grep])
349 AC_PATH_PROG(MKDIR,[mkdir],[mkdir])
350 AC_PATH_PROG(MV, [mv], [mv])
352 AC_PATH_PROG(RM, [rm], [rm])
353 AC_PATH_PROG(SED, [sed], [sed])
354 AC_PATH_PROG(TAR, [tar], [gtar])
356 dnl Looking for misc. graph plotting software
357 AC_PATH_PROG(GRAPHVIZ, [Graphviz], [echo Graphviz])
358 if test "$GRAPHVIZ" != "echo Graphviz" ; then
359 AC_DEFINE([HAVE_GRAPHVIZ],[1],[Define if the Graphviz program is available])
360 dnl If we're targeting for mingw we should emit windows paths, not msys
361 if test "$llvm_cv_os_type" == "MingW" ; then
362 GRAPHVIZ=`echo $GRAPHVIZ | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
364 AC_DEFINE_UNQUOTED([LLVM_PATH_GRAPHVIZ],"$GRAPHVIZ${EXEEXT}",
365 [Define to path to Graphviz program if found or 'echo Graphviz' otherwise])
367 AC_PATH_PROG(DOT, [dot], [echo dot])
368 if test "$DOT" != "echo dot" ; then
369 AC_DEFINE([HAVE_DOT],[1],[Define if the dot program is available])
370 dnl If we're targeting for mingw we should emit windows paths, not msys
371 if test "$llvm_cv_os_type" == "MingW" ; then
372 DOT=`echo $DOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
374 AC_DEFINE_UNQUOTED([LLVM_PATH_DOT],"$DOT${EXEEXT}",
375 [Define to path to dot program if found or 'echo dot' otherwise])
377 AC_PATH_PROGS(GV, [gv gsview32], [echo gv])
378 if test "$GV" != "echo gv" ; then
379 AC_DEFINE([HAVE_GV],[1],[Define if the gv program is available])
380 dnl If we're targeting for mingw we should emit windows paths, not msys
381 if test "$llvm_cv_os_type" == "MingW" ; then
382 GV=`echo $GV | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
384 AC_DEFINE_UNQUOTED([LLVM_PATH_GV],"$GV${EXEEXT}",
385 [Define to path to gv program if found or 'echo gv' otherwise])
387 AC_PATH_PROG(DOTTY, [dotty], [echo dotty])
388 if test "$DOTTY" != "echo dotty" ; then
389 AC_DEFINE([HAVE_DOTTY],[1],[Define if the dotty program is available])
390 dnl If we're targeting for mingw we should emit windows paths, not msys
391 if test "$llvm_cv_os_type" == "MingW" ; then
392 DOTTY=`echo $DOTTY | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
394 AC_DEFINE_UNQUOTED([LLVM_PATH_DOTTY],"$DOTTY${EXEEXT}",
395 [Define to path to dotty program if found or 'echo dotty' otherwise])
398 dnl Look for a sufficiently recent version of Perl.
399 LLVM_PROG_PERL([5.006])
401 if test x"$PERL" = xnone; then
402 AC_SUBST(HAVE_PERL,0)
404 AC_SUBST(HAVE_PERL,1)
407 dnl Find the install program
410 dnl Checks for documentation and testing tools that we can do without. If these
411 dnl are not found then they are set to "true" which always succeeds but does
412 dnl nothing. This just lets the build output show that we could have done
413 dnl something if the tool was available.
414 AC_PATH_PROG(BZIP2,[bzip2],[echo "Skipped: bzip2 not found"])
415 AC_PATH_PROG(DOXYGEN,[doxygen],[echo "Skipped: doxygen not found"])
416 AC_PATH_PROG(ETAGS,[etags],[echo "Skipped: etags not found"])
417 AC_PATH_PROG(GROFF,[groff],[echo "Skipped: groff not found"])
418 AC_PATH_PROG(GZIP,[gzip],[echo "Skipped: gzip not found"])
419 AC_PATH_PROG(POD2HTML,[pod2html],[echo "Skipped: pod2html not found"])
420 AC_PATH_PROG(POD2MAN,[pod2man],[echo "Skipped: pod2man not found"])
421 AC_PATH_PROG(RUNTEST,[runtest],[echo "Skipped: runtest not found"])
423 AC_PATH_PROG(ZIP,[zip],[echo "Skipped: zip not found"])
425 dnl Determine if the linker supports the -R option.
428 dnl Check for libtool and the library that has dlopen function (which must come
429 dnl before the AC_PROG_LIBTOOL check in order to enable dlopening libraries with
435 if test "$lt_cv_dlopen_self" = "yes" ; then
436 AC_DEFINE([CAN_DLOPEN_SELF],[1],
437 [Define if dlopen(0) will open the symbols of the program])
440 dnl Check if we know how to tell etags we are using C++:
441 etags_version=`$ETAGS --version 2>&1`
442 case "$etags_version" in
443 *[Ee]xuberant*) ETAGSFLAGS="--language-force=c++" ;;
444 *GNU\ Emacs*) ETAGSFLAGS="-l c++" ;;
447 AC_SUBST(ETAGSFLAGS,$ETAGSFLAGS)
449 if test "$WITH_LLVMGCCDIR" = "default" ; then
450 LLVMGCC="llvm-gcc${EXEEXT}"
451 LLVMGXX="llvm-g++${EXEEXT}"
452 AC_PATH_PROG(LLVMGCC, $LLVMGCC, [])
453 AC_PATH_PROG(LLVMGXX, $LLVMGXX, [])
455 LLVMGCC="$WITH_LLVMGCCDIR/bin/llvm-gcc${EXEEXT}"
456 LLVMGXX="$WITH_LLVMGCCDIR/bin/llvm-g++${EXEEXT}"
457 AC_SUBST(LLVMGCC,$LLVMGCC)
458 AC_SUBST(LLVMGXX,$LLVMGXX)
461 AC_MSG_CHECKING([tool compatibility])
463 dnl Ensure that compilation tools are GCC or a GNU compatible compiler such as
464 dnl ICC; we use GCC specific options in the makefiles so the compiler needs
465 dnl to support those options.
466 dnl "icc" emits gcc signatures
467 dnl "icc -no-gcc" emits no gcc signature BUT is still compatible
479 if test "$GCC" != "yes" && test "$ICC" != "yes"
481 AC_MSG_ERROR([gcc|icc required but not found])
484 dnl Ensure that compilation tools are GCC; we use GCC specific extensions
485 if test "$GXX" != "yes" && test "$IXX" != "yes"
487 AC_MSG_ERROR([g++|icc required but not found])
490 dnl Verify that GCC is version 3.0 or higher
491 if test "$GCC" = "yes"
493 gccmajor=`$CC --version | head -n 1 | sed 's/[[^0-9]]*\([[0-9.]]\).*/\1/'`
494 if test "$gccmajor" -lt "3"
496 AC_MSG_ERROR([gcc 3.x required, but you have a lower version])
500 dnl Check for GNU Make. We use its extensions, so don't build without it
501 if test -z "$llvm_cv_gnu_make_command"
503 AC_MSG_ERROR([GNU Make required but not found])
506 dnl Tool compatibility is okay if we make it here.
509 dnl===-----------------------------------------------------------------------===
511 dnl=== SECTION 5: Check for libraries
513 dnl===-----------------------------------------------------------------------===
515 dnl libelf is for sparc only; we can ignore it if we don't have it
516 AC_CHECK_LIB(elf, elf_begin)
518 if test "$llvm_cv_os_type" == "MingW" ; then
519 AC_CHECK_LIB(imagehlp, main)
520 AC_CHECK_LIB(psapi, main)
523 dnl lt_dlopen may be required for plugin support.
524 AC_SEARCH_LIBS(lt_dlopen,ltdl,AC_DEFINE([HAVE_LT_DLOPEN],[1],
525 [Define if lt_dlopen() is available on this platform]),
526 AC_MSG_WARN([lt_dlopen() not found - plugin support might
529 dnl dlopen() is required for plugin support.
530 AC_SEARCH_LIBS(dlopen,dl,AC_DEFINE([HAVE_DLOPEN],[1],
531 [Define if dlopen() is available on this platform.]),
532 AC_MSG_WARN([dlopen() not found - disabling plugin support]))
534 dnl mallinfo is optional; the code can compile (minus features) without it
535 AC_SEARCH_LIBS(mallinfo,malloc,AC_DEFINE([HAVE_MALLINFO],[1],
536 [Define if mallinfo() is available on this platform.]))
538 dnl pthread locking functions are optional - but llvm will not be thread-safe
540 if test "$ENABLE_THREADS" -eq 1 ; then
541 AC_CHECK_LIB(pthread,pthread_mutex_init)
542 AC_SEARCH_LIBS(pthread_mutex_lock,pthread,
543 AC_DEFINE([HAVE_PTHREAD_MUTEX_LOCK],[1],
544 [Have pthread_mutex_lock]))
547 dnl===-----------------------------------------------------------------------===
549 dnl=== SECTION 6: Check for header files
551 dnl===-----------------------------------------------------------------------===
553 dnl First, use autoconf provided macros for specific headers that we need
554 dnl We don't check for ancient stuff or things that are guaranteed to be there
555 dnl by the C++ standard. We always use the <cfoo> versions of <foo.h> C headers.
556 dnl Generally we're looking for POSIX headers.
558 AC_HEADER_MMAP_ANONYMOUS
564 AC_CHECK_HEADERS([dlfcn.h execinfo.h fcntl.h inttypes.h limits.h link.h])
565 AC_CHECK_HEADERS([malloc.h setjmp.h signal.h stdint.h unistd.h utime.h])
566 AC_CHECK_HEADERS([windows.h sys/mman.h sys/param.h sys/resource.h sys/time.h])
567 AC_CHECK_HEADERS([sys/types.h malloc/malloc.h])
568 if test "$ENABLE_THREADS" -eq 1 ; then
569 AC_CHECK_HEADERS(pthread.h)
572 dnl===-----------------------------------------------------------------------===
574 dnl=== SECTION 7: Check for types and structures
576 dnl===-----------------------------------------------------------------------===
582 AC_CHECK_TYPES([int64_t],,AC_MSG_ERROR([Type int64_t required but not found]))
583 AC_CHECK_TYPES([uint64_t],,
584 AC_CHECK_TYPES([u_int64_t],,
585 AC_MSG_ERROR([Type uint64_t or u_int64_t required but not found])))
587 dnl===-----------------------------------------------------------------------===
589 dnl=== SECTION 8: Check for specific functions needed
591 dnl===-----------------------------------------------------------------------===
593 AC_CHECK_FUNCS([backtrace ceilf floorf roundf rintf nearbyintf getcwd ])
594 AC_CHECK_FUNCS([getpagesize getrusage gettimeofday isatty mkdtemp mkstemp ])
595 AC_CHECK_FUNCS([mktemp realpath sbrk setrlimit strdup strerror strerror_r ])
596 AC_CHECK_FUNCS([strtoll strtoq sysconf malloc_zone_statistics ])
597 AC_CHECK_FUNCS([_setjmp _longjmp setjmp longjmp sigsetjmp siglongjmp])
602 dnl Check for variations in the Standard C++ library and STL. These macros are
603 dnl provided by LLVM in the autoconf/m4 directory.
606 AC_CXX_HAVE_STD_ITERATOR
607 AC_CXX_HAVE_BI_ITERATOR
608 AC_CXX_HAVE_FWD_ITERATOR
612 dnl Check for mmap and mprotect support. We need both to do the JIT and for
613 dnl bytecode loading, etc. We also need to know if /dev/zero is required to
614 dnl be opened for allocating RWX memory.
617 AC_NEED_DEV_ZERO_FOR_MMAP
618 AC_CHECK_FUNC(mprotect,,
619 AC_MSG_ERROR([Function mprotect() required but not found]))
621 if test "$ac_cv_func_mmap_fixed_mapped" = "no"
623 AC_MSG_WARN([mmap() of a fixed address required but not supported])
625 if test "$ac_cv_func_mmap_file" = "no"
627 AC_MSG_WARN([mmap() of files required but not found])
630 dnl===-----------------------------------------------------------------------===
632 dnl=== SECTION 9: Additional checks, variables, etc.
634 dnl===-----------------------------------------------------------------------===
636 dnl See if the llvm-gcc executable can compile to LLVM assembly
637 AC_CACHE_CHECK([whether llvm-gcc is sane],[llvm_cv_llvmgcc_sanity],
638 [llvm_cv_llvmgcc_sanity="no"
639 if test -x "$LLVMGCC" ; then
640 cp /dev/null conftest.c
641 "$LLVMGCC" -emit-llvm -S -o - conftest.c | grep implementation > /dev/null 2>&1
642 if test $? -eq 0 ; then
643 llvm_cv_llvmgcc_sanity="yes"
648 dnl Since we have a sane llvm-gcc, identify it and its sub-tools
649 if test "$llvm_cv_llvmgcc_sanity" = "yes" ; then
650 llvmcc1path=`"$LLVMGCC" --print-prog-name=cc1`
651 AC_SUBST(LLVMCC1,$llvmcc1path)
652 llvmcc1pluspath=`"$LLVMGCC" --print-prog-name=cc1plus`
653 AC_SUBST(LLVMCC1PLUS,$llvmcc1pluspath)
654 llvmgccdir=`echo "$llvmcc1path" | sed 's,/libexec/.*,,'`
655 AC_SUBST(LLVMGCCDIR,$llvmgccdir)
656 llvmgccversion=[`"$LLVMGCC" -dumpversion 2>&1 | sed 's/^\([0-9.]*\).*/\1/'`]
657 llvmgccmajvers=[`echo $llvmgccversion | sed 's/^\([0-9]\).*/\1/'`]
658 AC_SUBST(LLVMGCC_VERSION,$llvmgccversion)
659 AC_SUBST(LLVMGCC_MAJVERS,$llvmgccmajvers)
662 dnl Propagate the shared library extension that the libltdl checks did to
663 dnl the Makefiles so we can use it there too
664 AC_SUBST(SHLIBEXT,$libltdl_cv_shlibext)
666 # Translate the various configuration directories and other basic
667 # information into substitutions that will end up in Makefile.config.in
668 # that these configured values can be used by the makefiles
669 if test "${prefix}" == "NONE" ; then
672 eval LLVM_PREFIX="${prefix}";
673 eval LLVM_BINDIR="${prefix}/bin";
674 eval LLVM_LIBDIR="${prefix}/lib";
675 eval LLVM_DATADIR="${prefix}/share/llvm";
676 eval LLVM_DOCSDIR="${prefix}/docs/llvm";
677 eval LLVM_ETCDIR="${prefix}/etc/llvm";
678 eval LLVM_INCLUDEDIR="${prefix}/include";
679 eval LLVM_INFODIR="${prefix}/info";
680 eval LLVM_MANDIR="${prefix}/man";
681 LLVM_CONFIGTIME=`date`
682 AC_SUBST(LLVM_PREFIX)
683 AC_SUBST(LLVM_BINDIR)
684 AC_SUBST(LLVM_LIBDIR)
685 AC_SUBST(LLVM_DATADIR)
686 AC_SUBST(LLVM_DOCSDIR)
687 AC_SUBST(LLVM_ETCDIR)
688 AC_SUBST(LLVM_INCLUDEDIR)
689 AC_SUBST(LLVM_INFODIR)
690 AC_SUBST(LLVM_MANDIR)
691 AC_SUBST(LLVM_CONFIGTIME)
693 # Place the various directores into the config.h file as #defines so that we
694 # can know about the installation paths within LLVM.
695 AC_DEFINE_UNQUOTED(LLVM_PREFIX,"$LLVM_PREFIX",
696 [Installation prefix directory])
697 AC_DEFINE_UNQUOTED(LLVM_BINDIR, "$LLVM_BINDIR",
698 [Installation directory for binary executables])
699 AC_DEFINE_UNQUOTED(LLVM_LIBDIR, "$LLVM_LIBDIR",
700 [Installation directory for libraries])
701 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DATADIR",
702 [Installation directory for data files])
703 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DOCSDIR",
704 [Installation directory for documentation])
705 AC_DEFINE_UNQUOTED(LLVM_ETCDIR, "$LLVM_ETCDIR",
706 [Installation directory for config files])
707 AC_DEFINE_UNQUOTED(LLVM_INCLUDEDIR, "$LLVM_INCLUDEDIR",
708 [Installation directory for include files])
709 AC_DEFINE_UNQUOTED(LLVM_INFODIR, "$LLVM_INFODIR",
710 [Installation directory for .info files])
711 AC_DEFINE_UNQUOTED(LLVM_MANDIR, "$LLVM_MANDIR",
712 [Installation directory for man pages])
713 AC_DEFINE_UNQUOTED(LLVM_CONFIGTIME, "$LLVM_CONFIGTIME",
714 [Time at which LLVM was configured])
716 dnl===-----------------------------------------------------------------------===
718 dnl=== SECTION 10: Specify the output files and generate it
720 dnl===-----------------------------------------------------------------------===
722 dnl Configure header files
723 dnl WARNING: dnl If you add or remove any of the following config headers, then
724 dnl you MUST also update Makefile.rules so that the variable FilesToConfig
725 dnl contains the same list of files as AC_CONFIG_HEADERS below. This ensures the
726 dnl files can be updated automatically when their *.in sources change.
727 AC_CONFIG_HEADERS([include/llvm/Config/config.h])
728 AC_CONFIG_HEADERS([include/llvm/Support/DataTypes.h])
729 AC_CONFIG_HEADERS([include/llvm/ADT/hash_map])
730 AC_CONFIG_HEADERS([include/llvm/ADT/hash_set])
731 AC_CONFIG_HEADERS([include/llvm/ADT/iterator])
733 dnl Configure the makefile's configuration data
734 AC_CONFIG_FILES([Makefile.config])
736 dnl Configure doxygen's configuration file
737 AC_CONFIG_FILES([docs/doxygen.cfg])
739 dnl Do the first stage of configuration for llvm-config.in.
740 AC_CONFIG_FILES([tools/llvm-config/llvm-config.in])
742 dnl Do special configuration of Makefiles
743 AC_CONFIG_COMMANDS([setup],,[llvm_src="${srcdir}"])
744 AC_CONFIG_MAKEFILE(Makefile)
745 AC_CONFIG_MAKEFILE(Makefile.common)
746 AC_CONFIG_MAKEFILE(examples/Makefile)
747 AC_CONFIG_MAKEFILE(lib/Makefile)
748 AC_CONFIG_MAKEFILE(runtime/Makefile)
749 AC_CONFIG_MAKEFILE(test/Makefile)
750 AC_CONFIG_MAKEFILE(test/Makefile.tests)
751 AC_CONFIG_MAKEFILE(tools/Makefile)
752 AC_CONFIG_MAKEFILE(utils/Makefile)
753 AC_CONFIG_MAKEFILE(projects/Makefile)
755 dnl Finally, crank out the output
758 dnl Warn loudly if llvm-gcc was not obviously working
759 if test "$llvm_cv_llvmgcc_sanity" = "no" ; then
760 AC_MSG_WARN([***** llvm-gcc/llvm-g++ was not found, or does not appear to be ])
761 AC_MSG_WARN([***** working. Please make sure you have llvmgcc and llvmg++ in])
762 AC_MSG_WARN([***** your path before configuring LLVM. The runtime libraries])
763 AC_MSG_WARN([***** (llvm/runtime) will not be built but you should be able to])
764 AC_MSG_WARN([***** build the llvm tools.])