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]],[[1.9cvs]],[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 "privbracket") AC_CONFIG_SUBDIRS([projects/privbracket]) ;;
73 "llvm-test") AC_CONFIG_SUBDIRS([projects/llvm-test]) ;;
74 "llvm-reopt") AC_CONFIG_SUBDIRS([projects/llvm-reopt]);;
75 "llvm-gcc") AC_CONFIG_SUBDIRS([projects/llvm-gcc]) ;;
76 "llvm-java") AC_CONFIG_SUBDIRS([projects/llvm-java]) ;;
77 "llvm-tv") AC_CONFIG_SUBDIRS([projects/llvm-tv]) ;;
78 "llvm-poolalloc") AC_CONFIG_SUBDIRS([projects/llvm-poolalloc]) ;;
79 "llvm-kernel") AC_CONFIG_SUBDIRS([projects/llvm-kernel]) ;;
81 AC_MSG_WARN([Unknown project (${i}) won't be configured automatically])
87 dnl===-----------------------------------------------------------------------===
89 dnl=== SECTION 2: Architecture, target, and host checks
91 dnl===-----------------------------------------------------------------------===
93 dnl Check the target for which we're compiling and the host that will do the
94 dnl compilations. This will tell us which LLVM compiler will be used for
95 dnl compiling SSA into object code. This needs to be done early because
96 dnl following tests depend on it.
99 dnl Determine the platform type and cache its value. This helps us configure
100 dnl the System library to the correct build platform.
101 AC_CACHE_CHECK([type of operating system we're going to host on],
105 llvm_cv_os_type="AIX"
106 llvm_cv_platform_type="Unix" ;;
108 llvm_cv_os_type="Cygwin"
109 llvm_cv_platform_type="Unix" ;;
111 llvm_cv_os_type="Darwin"
112 llvm_cv_platform_type="Unix" ;;
114 llvm_cv_os_type="FreeBSD"
115 llvm_cv_platform_type="Unix" ;;
117 llvm_cv_os_type="OpenBSD"
118 llvm_cv_platform_type="Unix" ;;
120 llvm_cv_os_type="HP-UX"
121 llvm_cv_platform_type="Unix" ;;
123 llvm_cv_os_type="Interix"
124 llvm_cv_platform_type="Unix" ;;
126 llvm_cv_os_type="Linux"
127 llvm_cv_platform_type="Unix" ;;
129 llvm_cv_os_type="SunOS"
130 llvm_cv_platform_type="Unix" ;;
132 llvm_cv_os_type="Win32"
133 llvm_cv_platform_type="Win32" ;;
135 llvm_cv_os_type="MingW"
136 llvm_cv_platform_type="Win32" ;;
138 llvm_cv_os_type="Unknown"
139 llvm_cv_platform_type="Unknown" ;;
142 dnl Make sure we aren't attempting to configure for an unknown system
143 if test "$llvm_cv_os_type" = "Unknown" ; then
144 AC_MSG_ERROR([Operating system is unknown, configure can't continue])
147 dnl Set the "OS" Makefile variable based on the platform type so the
148 dnl makefile can configure itself to specific build hosts
149 AC_SUBST(OS,$llvm_cv_os_type)
151 dnl Set the "LLVM_ON_*" variables based on llvm_cvs_platform_type
152 dnl This is used by lib/System to determine the basic kind of implementation
154 case $llvm_cv_platform_type in
156 AC_DEFINE([LLVM_ON_UNIX],[1],[Define if this is Unixish platform])
157 AC_SUBST(LLVM_ON_UNIX,[1])
158 AC_SUBST(LLVM_ON_WIN32,[0])
161 AC_DEFINE([LLVM_ON_WIN32],[1],[Define if this is Win32ish platform])
162 AC_SUBST(LLVM_ON_UNIX,[0])
163 AC_SUBST(LLVM_ON_WIN32,[1])
167 dnl Determine what our target architecture is and configure accordingly.
168 dnl This will allow Makefiles to make a distinction between the hardware and
170 AC_CACHE_CHECK([target architecture],[llvm_cv_target_arch],
172 i?86-*) llvm_cv_target_arch="x86" ;;
173 amd64-* | x86_64-*) llvm_cv_target_arch="x86_64" ;;
174 sparc*-*) llvm_cv_target_arch="Sparc" ;;
175 powerpc*-*) llvm_cv_target_arch="PowerPC" ;;
176 alpha*-*) llvm_cv_target_arch="Alpha" ;;
177 ia64-*) llvm_cv_target_arch="IA64" ;;
178 *) llvm_cv_target_arch="Unknown" ;;
181 if test "$llvm_cv_target_arch" = "Unknown" ; then
182 AC_MSG_WARN([Configuring LLVM for an unknown target archicture])
185 dnl Define a substitution, ARCH, for the target architecture
186 AC_SUBST(ARCH,$llvm_cv_target_arch)
188 dnl Check for the endianness of the target
189 AC_C_BIGENDIAN(AC_SUBST([ENDIAN],[big]),AC_SUBST([ENDIAN],[little]))
191 dnl Check for build platform executable suffix if we're crosscompiling
192 if test "$cross_compiling" = yes; then
193 AC_SUBST(LLVM_CROSS_COMPILING, [1])
196 AC_SUBST(LLVM_CROSS_COMPILING, [0])
199 dnl Check to see if there's a "CVS" directory indicating that this build is
200 dnl being done from a CVS checkout. This sets up several defaults for the
201 dnl command line switches. When we build with a CVS directory, we get a
202 dnl debug with assertions turned on. Without, we assume a source release and we
203 dnl get an optimized build without assertions. See --enable-optimized and
204 dnl --enable-assertions below
205 if test -d "CVS" -o -d "${srcdir}/CVS"; then
208 AC_SUBST(CVSBUILD,[[CVSBUILD=1]])
214 dnl===-----------------------------------------------------------------------===
216 dnl=== SECTION 3: Command line arguments for the configure script.
218 dnl===-----------------------------------------------------------------------===
220 dnl --enable-optimized : check whether they want to do an optimized build:
221 AC_ARG_ENABLE(optimized, AS_HELP_STRING(
222 [--enable-optimized,Compile with optimizations enabled (default is NO)]),,enableval=$optimize)
223 if test ${enableval} = "no" ; then
224 AC_SUBST(ENABLE_OPTIMIZED,[[]])
226 AC_SUBST(ENABLE_OPTIMIZED,[[ENABLE_OPTIMIZED=1]])
229 dnl --enable-assertions : check whether they want to turn on assertions or not:
230 AC_ARG_ENABLE(assertions,AS_HELP_STRING(
231 [--enable-assertions,Compile with assertion checks enabled (default is YES)]),, enableval="yes")
232 if test ${enableval} = "yes" ; then
233 AC_SUBST(DISABLE_ASSERTIONS,[[]])
235 AC_SUBST(DISABLE_ASSERTIONS,[[DISABLE_ASSERTIONS=1]])
238 dnl --enable-debug-runtime : should runtime libraries have debug symbols?
239 AC_ARG_ENABLE(debug-runtime,
240 AS_HELP_STRING([--enable-debug-runtime,Build runtime libs with debug symbols (default is NO)]),,enableval=no)
241 if test ${enableval} = "no" ; then
242 AC_SUBST(DEBUG_RUNTIME,[[]])
244 AC_SUBST(DEBUG_RUNTIME,[[DEBUG_RUNTIME=1]])
247 dnl --enable-jit: check whether they want to enable the jit
249 AS_HELP_STRING(--enable-jit,
250 [Enable Just In Time Compiling (default is YES)]),,
252 if test ${enableval} = "no"
256 case "$llvm_cv_target_arch" in
257 x86) AC_SUBST(TARGET_HAS_JIT,1) ;;
258 Sparc) AC_SUBST(TARGET_HAS_JIT,1) ;;
259 PowerPC) AC_SUBST(TARGET_HAS_JIT,1) ;;
260 x86_64) AC_SUBST(TARGET_HAS_JIT,0) ;;
261 Alpha) AC_SUBST(TARGET_HAS_JIT,1) ;;
262 IA64) AC_SUBST(TARGET_HAS_JIT,0) ;;
263 *) AC_SUBST(TARGET_HAS_JIT,0) ;;
267 dnl Allow enablement of doxygen generated documentation
268 AC_ARG_ENABLE(doxygen,
269 AS_HELP_STRING([--enable-doxygen],
270 [Build doxygen documentation (default is NO)]),,
273 yes) AC_SUBST(ENABLE_DOXYGEN,[1]) ;;
274 no) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
275 default) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
276 *) AC_MSG_ERROR([Invalid setting for --enable-doxygen. Use "yes" or "no"]) ;;
279 dnl Allow disablement of threads
280 AC_ARG_ENABLE(threads,
281 AS_HELP_STRING([--enable-threads],
282 [Use threads if available (default is YES)]),,
285 yes) AC_SUBST(ENABLE_THREADS,[1]) ;;
286 no) AC_SUBST(ENABLE_THREADS,[0]) ;;
287 *) AC_MSG_ERROR([Invalid setting for --enable-threads. Use "yes" or "no"]) ;;
289 AC_DEFINE_UNQUOTED([ENABLE_THREADS],$ENABLE_THREADS,[Define if threads enabled])
291 dnl Allow specific targets to be specified for building (or not)
293 AC_ARG_ENABLE([targets],AS_HELP_STRING([--enable-targets],
294 [Build specific host targets: all,host-only,{target-name} (default=all)]),,
297 all) TARGETS_TO_BUILD="X86 Sparc PowerPC Alpha IA64 ARM" ;;
299 case "$llvm_cv_target_arch" in
300 x86) TARGETS_TO_BUILD="X86" ;;
301 x86_64) TARGETS_TO_BUILD="X86" ;;
302 Sparc) TARGETS_TO_BUILD="Sparc" ;;
303 PowerPC) TARGETS_TO_BUILD="PowerPC" ;;
304 Alpha) TARGETS_TO_BUILD="Alpha" ;;
305 IA64) TARGETS_TO_BUILD="IA64" ;;
306 *) AC_MSG_ERROR([Can not set target to build]) ;;
309 *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
311 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
312 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
313 sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
314 powerpc) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
315 alpha) TARGETS_TO_BUILD="Alpha $TARGETS_TO_BUILD" ;;
316 ia64) TARGETS_TO_BUILD="IA64 $TARGETS_TO_BUILD" ;;
317 *) AC_MSG_ERROR([Unrecognized target $a_target]) ;;
322 TARGETS_TO_BUILD="CBackend $TARGETS_TO_BUILD"
323 AC_SUBST(TARGETS_TO_BUILD,$TARGETS_TO_BUILD)
325 dnl Allow a specific llvm-gcc/llvm-g++ pair to be used with this LLVM config.
326 AC_ARG_WITH(llvmgccdir,
327 AS_HELP_STRING([--with-llvmgccdir],
328 [Specify location of llvm-gcc install dir (default searches PATH)]),,
331 default) WITH_LLVMGCCDIR=default ;;
332 /* | [[A-Za-z]]:[[\\/]]*) WITH_LLVMGCCDIR=$withval ;;
333 *) AC_MSG_ERROR([Invalid path for --with-llvmgccdir. Provide full path]) ;;
336 dnl Specify extra build options
337 AC_ARG_WITH(extra-options,
338 AS_HELP_STRING([--with-extra-options],
339 [Specify addtional options to compile LLVM with]),,
342 default) EXTRA_OPTIONS= ;;
343 *) EXTRA_OPTIONS=$extraopts ;;
345 AC_SUBST(EXTRA_OPTIONS,$EXTRA_OPTIONS)
347 dnl===-----------------------------------------------------------------------===
349 dnl=== SECTION 4: Check for programs we need and that they are the right version
351 dnl===-----------------------------------------------------------------------===
353 dnl Check for compilation tools
363 dnl Check for the tools that the makefiles require
366 AC_PATH_PROG(CMP, [cmp], [cmp])
367 AC_PATH_PROG(CP, [cp], [cp])
368 AC_PATH_PROG(DATE, [date], [date])
369 AC_PATH_PROG(FIND, [find], [find])
370 AC_PATH_PROG(GREP, [grep], [grep])
371 AC_PATH_PROG(MKDIR,[mkdir],[mkdir])
372 AC_PATH_PROG(MV, [mv], [mv])
374 AC_PATH_PROG(RM, [rm], [rm])
375 AC_PATH_PROG(SED, [sed], [sed])
376 AC_PATH_PROG(TAR, [tar], [gtar])
378 dnl Looking for misc. graph plotting software
379 AC_PATH_PROG(GRAPHVIZ, [Graphviz], [echo Graphviz])
380 if test "$GRAPHVIZ" != "echo Graphviz" ; then
381 AC_DEFINE([HAVE_GRAPHVIZ],[1],[Define if the Graphviz program is available])
382 dnl If we're targeting for mingw we should emit windows paths, not msys
383 if test "$llvm_cv_os_type" == "MingW" ; then
384 GRAPHVIZ=`echo $GRAPHVIZ | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
386 AC_DEFINE_UNQUOTED([LLVM_PATH_GRAPHVIZ],"$GRAPHVIZ${EXEEXT}",
387 [Define to path to Graphviz program if found or 'echo Graphviz' otherwise])
389 AC_PATH_PROG(DOT, [dot], [echo dot])
390 if test "$DOT" != "echo dot" ; then
391 AC_DEFINE([HAVE_DOT],[1],[Define if the dot program is available])
392 dnl If we're targeting for mingw we should emit windows paths, not msys
393 if test "$llvm_cv_os_type" == "MingW" ; then
394 DOT=`echo $DOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
396 AC_DEFINE_UNQUOTED([LLVM_PATH_DOT],"$DOT${EXEEXT}",
397 [Define to path to dot program if found or 'echo dot' otherwise])
399 AC_PATH_PROGS(GV, [gv gsview32], [echo gv])
400 if test "$GV" != "echo gv" ; then
401 AC_DEFINE([HAVE_GV],[1],[Define if the gv program is available])
402 dnl If we're targeting for mingw we should emit windows paths, not msys
403 if test "$llvm_cv_os_type" == "MingW" ; then
404 GV=`echo $GV | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
406 AC_DEFINE_UNQUOTED([LLVM_PATH_GV],"$GV${EXEEXT}",
407 [Define to path to gv program if found or 'echo gv' otherwise])
409 AC_PATH_PROG(DOTTY, [dotty], [echo dotty])
410 if test "$DOTTY" != "echo dotty" ; then
411 AC_DEFINE([HAVE_DOTTY],[1],[Define if the dotty program is available])
412 dnl If we're targeting for mingw we should emit windows paths, not msys
413 if test "$llvm_cv_os_type" == "MingW" ; then
414 DOTTY=`echo $DOTTY | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
416 AC_DEFINE_UNQUOTED([LLVM_PATH_DOTTY],"$DOTTY${EXEEXT}",
417 [Define to path to dotty program if found or 'echo dotty' otherwise])
420 dnl Look for a sufficiently recent version of Perl.
421 LLVM_PROG_PERL([5.006])
423 if test x"$PERL" = xnone; then
424 AC_SUBST(HAVE_PERL,0)
426 AC_SUBST(HAVE_PERL,1)
429 dnl Find the install program
432 dnl Checks for documentation and testing tools that we can do without. If these
433 dnl are not found then they are set to "true" which always succeeds but does
434 dnl nothing. This just lets the build output show that we could have done
435 dnl something if the tool was available.
436 AC_PATH_PROG(BZIP2,[bzip2],[echo "Skipped: bzip2 not found"])
437 AC_PATH_PROG(DOXYGEN,[doxygen],[echo "Skipped: doxygen not found"])
438 AC_PATH_PROG(ETAGS,[etags],[echo "Skipped: etags not found"])
439 AC_PATH_PROG(GROFF,[groff],[echo "Skipped: groff not found"])
440 AC_PATH_PROG(GZIP,[gzip],[echo "Skipped: gzip not found"])
441 AC_PATH_PROG(POD2HTML,[pod2html],[echo "Skipped: pod2html not found"])
442 AC_PATH_PROG(POD2MAN,[pod2man],[echo "Skipped: pod2man not found"])
443 AC_PATH_PROG(RUNTEST,[runtest],[echo "Skipped: runtest not found"])
445 AC_PATH_PROG(ZIP,[zip],[echo "Skipped: zip not found"])
447 dnl Determine if the linker supports the -R option.
450 dnl Check for libtool and the library that has dlopen function (which must come
451 dnl before the AC_PROG_LIBTOOL check in order to enable dlopening libraries with
457 if test "$lt_cv_dlopen_self" = "yes" ; then
458 AC_DEFINE([CAN_DLOPEN_SELF],[1],
459 [Define if dlopen(0) will open the symbols of the program])
462 dnl Check if we know how to tell etags we are using C++:
463 etags_version=`$ETAGS --version 2>&1`
464 case "$etags_version" in
465 *[Ee]xuberant*) ETAGSFLAGS="--language-force=c++" ;;
466 *GNU\ Emacs*) ETAGSFLAGS="-l c++" ;;
469 AC_SUBST(ETAGSFLAGS,$ETAGSFLAGS)
471 if test "$WITH_LLVMGCCDIR" = "default" ; then
472 LLVMGCC="llvm-gcc${EXEEXT}"
473 LLVMGXX="llvm-g++${EXEEXT}"
474 AC_PATH_PROG(LLVMGCC, $LLVMGCC, [])
475 AC_PATH_PROG(LLVMGXX, $LLVMGXX, [])
477 LLVMGCC="$WITH_LLVMGCCDIR/bin/llvm-gcc${EXEEXT}"
478 LLVMGXX="$WITH_LLVMGCCDIR/bin/llvm-g++${EXEEXT}"
479 AC_SUBST(LLVMGCC,$LLVMGCC)
480 AC_SUBST(LLVMGXX,$LLVMGXX)
483 AC_MSG_CHECKING([tool compatibility])
485 dnl Ensure that compilation tools are GCC or a GNU compatible compiler such as
486 dnl ICC; we use GCC specific options in the makefiles so the compiler needs
487 dnl to support those options.
488 dnl "icc" emits gcc signatures
489 dnl "icc -no-gcc" emits no gcc signature BUT is still compatible
501 if test "$GCC" != "yes" && test "$ICC" != "yes"
503 AC_MSG_ERROR([gcc|icc required but not found])
506 dnl Ensure that compilation tools are GCC; we use GCC specific extensions
507 if test "$GXX" != "yes" && test "$IXX" != "yes"
509 AC_MSG_ERROR([g++|icc required but not found])
512 dnl Verify that GCC is version 3.0 or higher
513 if test "$GCC" = "yes"
515 gccmajor=`$CC --version | head -n 1 | sed 's/[[^0-9]]*\([[0-9.]]\).*/\1/'`
516 if test "$gccmajor" -lt "3"
518 AC_MSG_ERROR([gcc 3.x required, but you have a lower version])
522 dnl Check for GNU Make. We use its extensions, so don't build without it
523 if test -z "$llvm_cv_gnu_make_command"
525 AC_MSG_ERROR([GNU Make required but not found])
528 dnl Tool compatibility is okay if we make it here.
531 dnl===-----------------------------------------------------------------------===
533 dnl=== SECTION 5: Check for libraries
535 dnl===-----------------------------------------------------------------------===
537 dnl libelf is for sparc only; we can ignore it if we don't have it
538 AC_CHECK_LIB(elf, elf_begin)
540 if test "$llvm_cv_os_type" == "MingW" ; then
541 AC_CHECK_LIB(imagehlp, main)
542 AC_CHECK_LIB(psapi, main)
545 dnl lt_dlopen may be required for plugin support.
546 AC_SEARCH_LIBS(lt_dlopen,ltdl,AC_DEFINE([HAVE_LT_DLOPEN],[1],
547 [Define if lt_dlopen() is available on this platform]),
548 AC_MSG_WARN([lt_dlopen() not found - plugin support might
551 dnl dlopen() is required for plugin support.
552 AC_SEARCH_LIBS(dlopen,dl,AC_DEFINE([HAVE_DLOPEN],[1],
553 [Define if dlopen() is available on this platform.]),
554 AC_MSG_WARN([dlopen() not found - disabling plugin support]))
556 dnl mallinfo is optional; the code can compile (minus features) without it
557 AC_SEARCH_LIBS(mallinfo,malloc,AC_DEFINE([HAVE_MALLINFO],[1],
558 [Define if mallinfo() is available on this platform.]))
560 dnl pthread locking functions are optional - but llvm will not be thread-safe
562 if test "$ENABLE_THREADS" -eq 1 ; then
563 AC_CHECK_LIB(pthread,pthread_mutex_init)
564 AC_SEARCH_LIBS(pthread_mutex_lock,pthread,
565 AC_DEFINE([HAVE_PTHREAD_MUTEX_LOCK],[1],
566 [Have pthread_mutex_lock]))
569 dnl===-----------------------------------------------------------------------===
571 dnl=== SECTION 6: Check for header files
573 dnl===-----------------------------------------------------------------------===
575 dnl First, use autoconf provided macros for specific headers that we need
576 dnl We don't check for ancient stuff or things that are guaranteed to be there
577 dnl by the C++ standard. We always use the <cfoo> versions of <foo.h> C headers.
578 dnl Generally we're looking for POSIX headers.
580 AC_HEADER_MMAP_ANONYMOUS
586 AC_CHECK_HEADERS([dlfcn.h execinfo.h fcntl.h inttypes.h limits.h link.h])
587 AC_CHECK_HEADERS([malloc.h setjmp.h signal.h stdint.h unistd.h utime.h])
588 AC_CHECK_HEADERS([windows.h sys/mman.h sys/param.h sys/resource.h sys/time.h])
589 AC_CHECK_HEADERS([sys/types.h malloc/malloc.h])
590 if test "$ENABLE_THREADS" -eq 1 ; then
591 AC_CHECK_HEADERS(pthread.h)
594 dnl===-----------------------------------------------------------------------===
596 dnl=== SECTION 7: Check for types and structures
598 dnl===-----------------------------------------------------------------------===
604 AC_CHECK_TYPES([int64_t],,AC_MSG_ERROR([Type int64_t required but not found]))
605 AC_CHECK_TYPES([uint64_t],,
606 AC_CHECK_TYPES([u_int64_t],,
607 AC_MSG_ERROR([Type uint64_t or u_int64_t required but not found])))
609 dnl===-----------------------------------------------------------------------===
611 dnl=== SECTION 8: Check for specific functions needed
613 dnl===-----------------------------------------------------------------------===
615 AC_CHECK_FUNCS([backtrace ceilf floorf roundf rintf nearbyintf getcwd ])
616 AC_CHECK_FUNCS([getpagesize getrusage gettimeofday isatty mkdtemp mkstemp ])
617 AC_CHECK_FUNCS([mktemp realpath sbrk setrlimit strdup strerror strerror_r ])
618 AC_CHECK_FUNCS([strtoll strtoq sysconf malloc_zone_statistics ])
619 AC_CHECK_FUNCS([_setjmp _longjmp setjmp longjmp sigsetjmp siglongjmp])
624 dnl Check for variations in the Standard C++ library and STL. These macros are
625 dnl provided by LLVM in the autoconf/m4 directory.
628 AC_CXX_HAVE_STD_ITERATOR
629 AC_CXX_HAVE_BI_ITERATOR
630 AC_CXX_HAVE_FWD_ITERATOR
634 dnl Check for mmap and mprotect support. We need both to do the JIT and for
635 dnl bytecode loading, etc. We also need to know if /dev/zero is required to
636 dnl be opened for allocating RWX memory.
639 AC_NEED_DEV_ZERO_FOR_MMAP
640 AC_CHECK_FUNC(mprotect,,
641 AC_MSG_ERROR([Function mprotect() required but not found]))
643 if test "$ac_cv_func_mmap_fixed_mapped" = "no"
645 AC_MSG_WARN([mmap() of a fixed address required but not supported])
647 if test "$ac_cv_func_mmap_file" = "no"
649 AC_MSG_WARN([mmap() of files required but not found])
652 dnl===-----------------------------------------------------------------------===
654 dnl=== SECTION 9: Additional checks, variables, etc.
656 dnl===-----------------------------------------------------------------------===
658 dnl See if the llvm-gcc executable can compile to LLVM assembly
659 AC_CACHE_CHECK([whether llvm-gcc is sane],[llvm_cv_llvmgcc_sanity],
660 [llvm_cv_llvmgcc_sanity="no"
661 if test -x "$LLVMGCC" ; then
662 cp /dev/null conftest.c
663 "$LLVMGCC" -emit-llvm -S -o - conftest.c | grep implementation > /dev/null 2>&1
664 if test $? -eq 0 ; then
665 llvm_cv_llvmgcc_sanity="yes"
670 dnl Since we have a sane llvm-gcc, identify it and its sub-tools
671 if test "$llvm_cv_llvmgcc_sanity" = "yes" ; then
672 llvmcc1path=`"$LLVMGCC" --print-prog-name=cc1`
673 AC_SUBST(LLVMCC1,$llvmcc1path)
674 llvmcc1pluspath=`"$LLVMGCC" --print-prog-name=cc1plus`
675 AC_SUBST(LLVMCC1PLUS,$llvmcc1pluspath)
676 llvmgccdir=`echo "$llvmcc1path" | sed 's,/libexec/.*,,'`
677 AC_SUBST(LLVMGCCDIR,$llvmgccdir)
678 llvmgccversion=[`"$LLVMGCC" -dumpversion 2>&1 | sed 's/^\([0-9.]*\).*/\1/'`]
679 llvmgccmajvers=[`echo $llvmgccversion | sed 's/^\([0-9]\).*/\1/'`]
680 AC_SUBST(LLVMGCC_VERSION,$llvmgccversion)
681 AC_SUBST(LLVMGCC_MAJVERS,$llvmgccmajvers)
684 dnl Propagate the shared library extension that the libltdl checks did to
685 dnl the Makefiles so we can use it there too
686 AC_SUBST(SHLIBEXT,$libltdl_cv_shlibext)
688 # Translate the various configuration directories and other basic
689 # information into substitutions that will end up in Makefile.config.in
690 # that these configured values can be used by the makefiles
691 if test "${prefix}" == "NONE" ; then
694 eval LLVM_PREFIX="${prefix}";
695 eval LLVM_BINDIR="${prefix}/bin";
696 eval LLVM_LIBDIR="${prefix}/lib";
697 eval LLVM_DATADIR="${prefix}/share/llvm";
698 eval LLVM_DOCSDIR="${prefix}/docs/llvm";
699 eval LLVM_ETCDIR="${prefix}/etc/llvm";
700 eval LLVM_INCLUDEDIR="${prefix}/include";
701 eval LLVM_INFODIR="${prefix}/info";
702 eval LLVM_MANDIR="${prefix}/man";
703 LLVM_CONFIGTIME=`date`
704 AC_SUBST(LLVM_PREFIX)
705 AC_SUBST(LLVM_BINDIR)
706 AC_SUBST(LLVM_LIBDIR)
707 AC_SUBST(LLVM_DATADIR)
708 AC_SUBST(LLVM_DOCSDIR)
709 AC_SUBST(LLVM_ETCDIR)
710 AC_SUBST(LLVM_INCLUDEDIR)
711 AC_SUBST(LLVM_INFODIR)
712 AC_SUBST(LLVM_MANDIR)
713 AC_SUBST(LLVM_CONFIGTIME)
715 # Place the various directores into the config.h file as #defines so that we
716 # can know about the installation paths within LLVM.
717 AC_DEFINE_UNQUOTED(LLVM_PREFIX,"$LLVM_PREFIX",
718 [Installation prefix directory])
719 AC_DEFINE_UNQUOTED(LLVM_BINDIR, "$LLVM_BINDIR",
720 [Installation directory for binary executables])
721 AC_DEFINE_UNQUOTED(LLVM_LIBDIR, "$LLVM_LIBDIR",
722 [Installation directory for libraries])
723 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DATADIR",
724 [Installation directory for data files])
725 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DOCSDIR",
726 [Installation directory for documentation])
727 AC_DEFINE_UNQUOTED(LLVM_ETCDIR, "$LLVM_ETCDIR",
728 [Installation directory for config files])
729 AC_DEFINE_UNQUOTED(LLVM_INCLUDEDIR, "$LLVM_INCLUDEDIR",
730 [Installation directory for include files])
731 AC_DEFINE_UNQUOTED(LLVM_INFODIR, "$LLVM_INFODIR",
732 [Installation directory for .info files])
733 AC_DEFINE_UNQUOTED(LLVM_MANDIR, "$LLVM_MANDIR",
734 [Installation directory for man pages])
735 AC_DEFINE_UNQUOTED(LLVM_CONFIGTIME, "$LLVM_CONFIGTIME",
736 [Time at which LLVM was configured])
738 dnl===-----------------------------------------------------------------------===
740 dnl=== SECTION 10: Specify the output files and generate it
742 dnl===-----------------------------------------------------------------------===
744 dnl Configure header files
745 dnl WARNING: dnl If you add or remove any of the following config headers, then
746 dnl you MUST also update Makefile.rules so that the variable FilesToConfig
747 dnl contains the same list of files as AC_CONFIG_HEADERS below. This ensures the
748 dnl files can be updated automatically when their *.in sources change.
749 AC_CONFIG_HEADERS([include/llvm/Config/config.h])
750 AC_CONFIG_HEADERS([include/llvm/Support/DataTypes.h])
751 AC_CONFIG_HEADERS([include/llvm/ADT/hash_map])
752 AC_CONFIG_HEADERS([include/llvm/ADT/hash_set])
753 AC_CONFIG_HEADERS([include/llvm/ADT/iterator])
755 dnl Configure the makefile's configuration data
756 AC_CONFIG_FILES([Makefile.config])
758 dnl Configure doxygen's configuration file
759 AC_CONFIG_FILES([docs/doxygen.cfg])
761 dnl Do the first stage of configuration for llvm-config.in.
762 AC_CONFIG_FILES([tools/llvm-config/llvm-config.in])
764 dnl Do special configuration of Makefiles
765 AC_CONFIG_COMMANDS([setup],,[llvm_src="${srcdir}"])
766 AC_CONFIG_MAKEFILE(Makefile)
767 AC_CONFIG_MAKEFILE(Makefile.common)
768 AC_CONFIG_MAKEFILE(examples/Makefile)
769 AC_CONFIG_MAKEFILE(lib/Makefile)
770 AC_CONFIG_MAKEFILE(runtime/Makefile)
771 AC_CONFIG_MAKEFILE(test/Makefile)
772 AC_CONFIG_MAKEFILE(test/Makefile.tests)
773 AC_CONFIG_MAKEFILE(tools/Makefile)
774 AC_CONFIG_MAKEFILE(utils/Makefile)
775 AC_CONFIG_MAKEFILE(projects/Makefile)
777 dnl Finally, crank out the output
780 dnl Warn loudly if llvm-gcc was not obviously working
781 if test "$llvm_cv_llvmgcc_sanity" = "no" ; then
782 AC_MSG_WARN([***** llvm-gcc/llvm-g++ was not found, or does not appear to be ])
783 AC_MSG_WARN([***** working. Please make sure you have llvmgcc and llvmg++ in])
784 AC_MSG_WARN([***** your path before configuring LLVM. The runtime libraries])
785 AC_MSG_WARN([***** (llvm/runtime) will not be built but you should be able to])
786 AC_MSG_WARN([***** build the llvm tools.])