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_link_all_option="-Wl,--whole-archive"
106 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
107 llvm_cv_os_type="AIX"
108 llvm_cv_platform_type="Unix" ;;
110 llvm_cv_link_all_option="-Wl,--whole-archive"
111 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
112 llvm_cv_os_type="IRIX"
113 llvm_cv_platform_type="Unix" ;;
115 llvm_cv_link_all_option="-Wl,--whole-archive"
116 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
117 llvm_cv_os_type="Cygwin"
118 llvm_cv_platform_type="Unix" ;;
120 llvm_cv_link_all_option="-Wl,-all_load"
121 llvm_cv_link_all_option="-Wl,-noall_load"
122 llvm_cv_os_type="Darwin"
123 llvm_cv_platform_type="Unix" ;;
125 llvm_cv_link_all_option="-Wl,--whole-archive"
126 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
127 llvm_cv_os_type="FreeBSD"
128 llvm_cv_platform_type="Unix" ;;
130 llvm_cv_link_all_option="-Wl,--whole-archive"
131 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
132 llvm_cv_os_type="OpenBSD"
133 llvm_cv_platform_type="Unix" ;;
135 llvm_cv_link_all_option="-Wl,--whole-archive"
136 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
137 llvm_cv_os_type="HP-UX"
138 llvm_cv_platform_type="Unix" ;;
140 llvm_cv_link_all_option="-Wl,--whole-archive"
141 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
142 llvm_cv_os_type="Interix"
143 llvm_cv_platform_type="Unix" ;;
145 llvm_cv_link_all_option="-Wl,--whole-archive"
146 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
147 llvm_cv_os_type="Linux"
148 llvm_cv_platform_type="Unix" ;;
150 llvm_cv_link_all_option="-Wl,-z,allextract"
151 llvm_cv_no_link_all_option="-Wl,-z,defaultextract"
152 llvm_cv_os_type="SunOS"
153 llvm_cv_platform_type="Unix" ;;
155 llvm_cv_link_all_option="-Wl,--whole-archive"
156 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
157 llvm_cv_os_type="Win32"
158 llvm_cv_platform_type="Win32" ;;
160 llvm_cv_link_all_option="-Wl,--whole-archive"
161 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
162 llvm_cv_os_type="MingW"
163 llvm_cv_platform_type="Win32" ;;
165 llvm_cv_link_all_option=""
166 llvm_cv_no_link_all_option=""
167 llvm_cv_os_type="Unknown"
168 llvm_cv_platform_type="Unknown" ;;
171 dnl Make sure we aren't attempting to configure for an unknown system
172 if test "$llvm_cv_os_type" = "Unknown" ; then
173 AC_MSG_ERROR([Operating system is unknown, configure can't continue])
176 dnl Set the "OS" Makefile variable based on the platform type so the
177 dnl makefile can configure itself to specific build hosts
178 AC_SUBST(OS,$llvm_cv_os_type)
180 dnl Set the LINKALL and NOLINKALL Makefile variables based on the platform
181 AC_SUBST(LINKALL,$llvm_cv_link_all_option)
182 AC_SUBST(NOLINKALL,$llvm_cv_no_link_all_option)
184 dnl Set the "LLVM_ON_*" variables based on llvm_cvs_platform_type
185 dnl This is used by lib/System to determine the basic kind of implementation
187 case $llvm_cv_platform_type in
189 AC_DEFINE([LLVM_ON_UNIX],[1],[Define if this is Unixish platform])
190 AC_SUBST(LLVM_ON_UNIX,[1])
191 AC_SUBST(LLVM_ON_WIN32,[0])
194 AC_DEFINE([LLVM_ON_WIN32],[1],[Define if this is Win32ish platform])
195 AC_SUBST(LLVM_ON_UNIX,[0])
196 AC_SUBST(LLVM_ON_WIN32,[1])
200 dnl Determine what our target architecture is and configure accordingly.
201 dnl This will allow Makefiles to make a distinction between the hardware and
203 AC_CACHE_CHECK([target architecture],[llvm_cv_target_arch],
205 i?86-*) llvm_cv_target_arch="x86" ;;
206 amd64-* | x86_64-*) llvm_cv_target_arch="x86_64" ;;
207 sparc*-*) llvm_cv_target_arch="Sparc" ;;
208 powerpc*-*) llvm_cv_target_arch="PowerPC" ;;
209 alpha*-*) llvm_cv_target_arch="Alpha" ;;
210 ia64-*) llvm_cv_target_arch="IA64" ;;
211 *) llvm_cv_target_arch="Unknown" ;;
214 if test "$llvm_cv_target_arch" = "Unknown" ; then
215 AC_MSG_WARN([Configuring LLVM for an unknown target archicture])
218 dnl Define a substitution, ARCH, for the target architecture
219 AC_SUBST(ARCH,$llvm_cv_target_arch)
221 dnl Check for the endianness of the target
222 AC_C_BIGENDIAN(AC_SUBST([ENDIAN],[big]),AC_SUBST([ENDIAN],[little]))
224 dnl Check for build platform executable suffix if we're crosscompiling
225 if test "$cross_compiling" = yes; then
226 AC_SUBST(LLVM_CROSS_COMPILING, [1])
229 AC_SUBST(LLVM_CROSS_COMPILING, [0])
232 dnl Check to see if there's a "CVS" directory indicating that this build is
233 dnl being done from a CVS checkout. This sets up several defaults for the
234 dnl command line switches. When we build with a CVS directory, we get a
235 dnl debug with assertions turned on. Without, we assume a source release and we
236 dnl get an optimized build without assertions. See --enable-optimized and
237 dnl --enable-assertions below
238 if test -d "CVS" -o -d "${srcdir}/CVS"; then
241 AC_SUBST(CVSBUILD,[[CVSBUILD=1]])
247 dnl===-----------------------------------------------------------------------===
249 dnl=== SECTION 3: Command line arguments for the configure script.
251 dnl===-----------------------------------------------------------------------===
253 dnl --enable-optimized : check whether they want to do an optimized build:
254 AC_ARG_ENABLE(optimized, AS_HELP_STRING(
255 [--enable-optimized,Compile with optimizations enabled (default is NO)]),,enableval=$optimize)
256 if test ${enableval} = "no" ; then
257 AC_SUBST(ENABLE_OPTIMIZED,[[]])
259 AC_SUBST(ENABLE_OPTIMIZED,[[ENABLE_OPTIMIZED=1]])
262 dnl --enable-assertions : check whether they want to turn on assertions or not:
263 AC_ARG_ENABLE(assertions,AS_HELP_STRING(
264 [--enable-assertions,Compile with assertion checks enabled (default is YES)]),, enableval="yes")
265 if test ${enableval} = "yes" ; then
266 AC_SUBST(DISABLE_ASSERTIONS,[[]])
268 AC_SUBST(DISABLE_ASSERTIONS,[[DISABLE_ASSERTIONS=1]])
271 dnl --enable-debug-runtime : should runtime libraries have debug symbols?
272 AC_ARG_ENABLE(debug-runtime,
273 AS_HELP_STRING([--enable-debug-runtime,Build runtime libs with debug symbols (default is NO)]),,enableval=no)
274 if test ${enableval} = "no" ; then
275 AC_SUBST(DEBUG_RUNTIME,[[]])
277 AC_SUBST(DEBUG_RUNTIME,[[DEBUG_RUNTIME=1]])
280 dnl --enable-jit: check whether they want to enable the jit
282 AS_HELP_STRING(--enable-jit,
283 [Enable Just In Time Compiling (default is YES)]),,
285 if test ${enableval} = "no"
289 case "$llvm_cv_target_arch" in
290 x86) AC_SUBST(TARGET_HAS_JIT,1) ;;
291 Sparc) AC_SUBST(TARGET_HAS_JIT,1) ;;
292 PowerPC) AC_SUBST(TARGET_HAS_JIT,1) ;;
293 x86_64) AC_SUBST(TARGET_HAS_JIT,0) ;;
294 Alpha) AC_SUBST(TARGET_HAS_JIT,1) ;;
295 IA64) AC_SUBST(TARGET_HAS_JIT,0) ;;
296 *) AC_SUBST(TARGET_HAS_JIT,0) ;;
300 dnl Allow enablement of doxygen generated documentation
301 AC_ARG_ENABLE(doxygen,
302 AS_HELP_STRING([--enable-doxygen],
303 [Build doxygen documentation (default is NO)]),,
306 yes) AC_SUBST(ENABLE_DOXYGEN,[1]) ;;
307 no) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
308 default) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
309 *) AC_MSG_ERROR([Invalid setting for --enable-doxygen. Use "yes" or "no"]) ;;
312 dnl Allow disablement of threads
313 AC_ARG_ENABLE(threads,
314 AS_HELP_STRING([--enable-threads],
315 [Use threads if available (default is YES)]),,
318 yes) AC_SUBST(ENABLE_THREADS,[1]) ;;
319 no) AC_SUBST(ENABLE_THREADS,[0]) ;;
320 *) AC_MSG_ERROR([Invalid setting for --enable-threads. Use "yes" or "no"]) ;;
322 AC_DEFINE_UNQUOTED([ENABLE_THREADS],$ENABLE_THREADS,[Define if threads enabled])
324 dnl Allow specific targets to be specified for building (or not)
326 AC_ARG_ENABLE([targets],AS_HELP_STRING([--enable-targets],
327 [Build specific host targets: all,host-only,{target-name} (default=all)]),,
330 all) TARGETS_TO_BUILD="X86 Sparc PowerPC Alpha IA64 ARM" ;;
332 case "$llvm_cv_target_arch" in
333 x86) TARGETS_TO_BUILD="X86" ;;
334 x86_64) TARGETS_TO_BUILD="X86" ;;
335 Sparc) TARGETS_TO_BUILD="Sparc" ;;
336 PowerPC) TARGETS_TO_BUILD="PowerPC" ;;
337 Alpha) TARGETS_TO_BUILD="Alpha" ;;
338 IA64) TARGETS_TO_BUILD="IA64" ;;
339 *) AC_MSG_ERROR([Can not set target to build]) ;;
342 *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
344 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
345 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
346 sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
347 powerpc) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
348 alpha) TARGETS_TO_BUILD="Alpha $TARGETS_TO_BUILD" ;;
349 ia64) TARGETS_TO_BUILD="IA64 $TARGETS_TO_BUILD" ;;
350 *) AC_MSG_ERROR([Unrecognized target $a_target]) ;;
355 TARGETS_TO_BUILD="CBackend $TARGETS_TO_BUILD"
356 AC_SUBST(TARGETS_TO_BUILD,$TARGETS_TO_BUILD)
358 dnl Allow a specific llvm-gcc/llvm-g++ pair to be used with this LLVM config.
359 AC_ARG_WITH(llvmgccdir,
360 AS_HELP_STRING([--with-llvmgccdir],
361 [Specify location of llvm-gcc install dir (default searches PATH)]),,
364 default) WITH_LLVMGCCDIR=default ;;
365 /* | [[A-Za-z]]:[[\\/]]*) WITH_LLVMGCCDIR=$withval ;;
366 *) AC_MSG_ERROR([Invalid path for --with-llvmgccdir. Provide full path]) ;;
369 dnl Specify extra build options
370 AC_ARG_WITH(extra-options,
371 AS_HELP_STRING([--with-extra-options],
372 [Specify addtional options to compile LLVM with]),,
375 default) EXTRA_OPTIONS= ;;
376 *) EXTRA_OPTIONS=$withval ;;
378 AC_SUBST(EXTRA_OPTIONS,$EXTRA_OPTIONS)
380 dnl===-----------------------------------------------------------------------===
382 dnl=== SECTION 4: Check for programs we need and that they are the right version
384 dnl===-----------------------------------------------------------------------===
386 dnl Check for compilation tools
396 dnl Check for the tools that the makefiles require
399 AC_PATH_PROG(CMP, [cmp], [cmp])
400 AC_PATH_PROG(CP, [cp], [cp])
401 AC_PATH_PROG(DATE, [date], [date])
402 AC_PATH_PROG(FIND, [find], [find])
403 AC_PATH_PROG(GREP, [grep], [grep])
404 AC_PATH_PROG(MKDIR,[mkdir],[mkdir])
405 AC_PATH_PROG(MV, [mv], [mv])
407 AC_PATH_PROG(RM, [rm], [rm])
408 AC_PATH_PROG(SED, [sed], [sed])
409 AC_PATH_PROG(TAR, [tar], [gtar])
410 AC_PATH_PROG(BINPWD,[pwd], [pwd])
412 dnl Looking for misc. graph plotting software
413 AC_PATH_PROG(GRAPHVIZ, [Graphviz], [echo Graphviz])
414 if test "$GRAPHVIZ" != "echo Graphviz" ; then
415 AC_DEFINE([HAVE_GRAPHVIZ],[1],[Define if the Graphviz program is available])
416 dnl If we're targeting for mingw we should emit windows paths, not msys
417 if test "$llvm_cv_os_type" == "MingW" ; then
418 GRAPHVIZ=`echo $GRAPHVIZ | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
420 AC_DEFINE_UNQUOTED([LLVM_PATH_GRAPHVIZ],"$GRAPHVIZ${EXEEXT}",
421 [Define to path to Graphviz program if found or 'echo Graphviz' otherwise])
423 AC_PATH_PROG(DOT, [dot], [echo dot])
424 if test "$DOT" != "echo dot" ; then
425 AC_DEFINE([HAVE_DOT],[1],[Define if the dot program is available])
426 dnl If we're targeting for mingw we should emit windows paths, not msys
427 if test "$llvm_cv_os_type" == "MingW" ; then
428 DOT=`echo $DOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
430 AC_DEFINE_UNQUOTED([LLVM_PATH_DOT],"$DOT${EXEEXT}",
431 [Define to path to dot program if found or 'echo dot' otherwise])
433 AC_PATH_PROGS(GV, [gv gsview32], [echo gv])
434 if test "$GV" != "echo gv" ; then
435 AC_DEFINE([HAVE_GV],[1],[Define if the gv program is available])
436 dnl If we're targeting for mingw we should emit windows paths, not msys
437 if test "$llvm_cv_os_type" == "MingW" ; then
438 GV=`echo $GV | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
440 AC_DEFINE_UNQUOTED([LLVM_PATH_GV],"$GV${EXEEXT}",
441 [Define to path to gv program if found or 'echo gv' otherwise])
443 AC_PATH_PROG(DOTTY, [dotty], [echo dotty])
444 if test "$DOTTY" != "echo dotty" ; then
445 AC_DEFINE([HAVE_DOTTY],[1],[Define if the dotty program is available])
446 dnl If we're targeting for mingw we should emit windows paths, not msys
447 if test "$llvm_cv_os_type" == "MingW" ; then
448 DOTTY=`echo $DOTTY | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
450 AC_DEFINE_UNQUOTED([LLVM_PATH_DOTTY],"$DOTTY${EXEEXT}",
451 [Define to path to dotty program if found or 'echo dotty' otherwise])
454 dnl Look for a sufficiently recent version of Perl.
455 LLVM_PROG_PERL([5.006])
457 if test x"$PERL" = xnone; then
458 AC_SUBST(HAVE_PERL,0)
460 AC_SUBST(HAVE_PERL,1)
463 dnl Find the install program
466 dnl Checks for documentation and testing tools that we can do without. If these
467 dnl are not found then they are set to "true" which always succeeds but does
468 dnl nothing. This just lets the build output show that we could have done
469 dnl something if the tool was available.
470 AC_PATH_PROG(BZIP2,[bzip2],[echo "Skipped: bzip2 not found"])
471 AC_PATH_PROG(DOXYGEN,[doxygen],[echo "Skipped: doxygen not found"])
472 AC_PATH_PROG(GROFF,[groff],[echo "Skipped: groff not found"])
473 AC_PATH_PROG(GZIP,[gzip],[echo "Skipped: gzip not found"])
474 AC_PATH_PROG(POD2HTML,[pod2html],[echo "Skipped: pod2html not found"])
475 AC_PATH_PROG(POD2MAN,[pod2man],[echo "Skipped: pod2man not found"])
476 AC_PATH_PROG(RUNTEST,[runtest],[echo "Skipped: runtest not found"])
478 AC_PATH_PROG(ZIP,[zip],[echo "Skipped: zip not found"])
480 dnl Determine if the linker supports the -R option.
483 dnl Check for libtool and the library that has dlopen function (which must come
484 dnl before the AC_PROG_LIBTOOL check in order to enable dlopening libraries with
490 if test "$lt_cv_dlopen_self" = "yes" ; then
491 AC_DEFINE([CAN_DLOPEN_SELF],[1],
492 [Define if dlopen(0) will open the symbols of the program])
495 dnl Check if we know how to tell etags we are using C++:
496 etags_version=`$ETAGS --version 2>&1`
497 case "$etags_version" in
498 *[Ee]xuberant*) ETAGSFLAGS="--language-force=c++" ;;
499 *GNU\ Emacs*) ETAGSFLAGS="-l c++" ;;
502 AC_SUBST(ETAGSFLAGS,$ETAGSFLAGS)
504 if test "$WITH_LLVMGCCDIR" = "default" ; then
505 LLVMGCC="llvm-gcc${EXEEXT}"
506 LLVMGXX="llvm-g++${EXEEXT}"
507 AC_PATH_PROG(LLVMGCC, $LLVMGCC, [])
508 AC_PATH_PROG(LLVMGXX, $LLVMGXX, [])
510 LLVMGCC="$WITH_LLVMGCCDIR/bin/llvm-gcc${EXEEXT}"
511 LLVMGXX="$WITH_LLVMGCCDIR/bin/llvm-g++${EXEEXT}"
512 AC_SUBST(LLVMGCC,$LLVMGCC)
513 AC_SUBST(LLVMGXX,$LLVMGXX)
516 AC_MSG_CHECKING([tool compatibility])
518 dnl Ensure that compilation tools are GCC or a GNU compatible compiler such as
519 dnl ICC; we use GCC specific options in the makefiles so the compiler needs
520 dnl to support those options.
521 dnl "icc" emits gcc signatures
522 dnl "icc -no-gcc" emits no gcc signature BUT is still compatible
534 if test "$GCC" != "yes" && test "$ICC" != "yes"
536 AC_MSG_ERROR([gcc|icc required but not found])
539 dnl Ensure that compilation tools are GCC; we use GCC specific extensions
540 if test "$GXX" != "yes" && test "$IXX" != "yes"
542 AC_MSG_ERROR([g++|icc required but not found])
545 dnl Verify that GCC is version 3.0 or higher
546 if test "$GCC" = "yes"
548 gccmajor=`$CC --version | head -n 1 | sed 's/[[^0-9]]*\([[0-9.]]\).*/\1/'`
549 if test "$gccmajor" -lt "3"
551 AC_MSG_ERROR([gcc 3.x required, but you have a lower version])
555 dnl Check for GNU Make. We use its extensions, so don't build without it
556 if test -z "$llvm_cv_gnu_make_command"
558 AC_MSG_ERROR([GNU Make required but not found])
561 dnl Tool compatibility is okay if we make it here.
564 dnl===-----------------------------------------------------------------------===
566 dnl=== SECTION 5: Check for libraries
568 dnl===-----------------------------------------------------------------------===
570 dnl libelf is for sparc only; we can ignore it if we don't have it
571 AC_CHECK_LIB(elf, elf_begin)
573 if test "$llvm_cv_os_type" == "MingW" ; then
574 AC_CHECK_LIB(imagehlp, main)
575 AC_CHECK_LIB(psapi, main)
578 dnl lt_dlopen may be required for plugin support.
579 AC_SEARCH_LIBS(lt_dlopen,ltdl,AC_DEFINE([HAVE_LT_DLOPEN],[1],
580 [Define if lt_dlopen() is available on this platform]),
581 AC_MSG_WARN([lt_dlopen() not found - plugin support might
584 dnl dlopen() is required for plugin support.
585 AC_SEARCH_LIBS(dlopen,dl,AC_DEFINE([HAVE_DLOPEN],[1],
586 [Define if dlopen() is available on this platform.]),
587 AC_MSG_WARN([dlopen() not found - disabling plugin support]))
589 dnl mallinfo is optional; the code can compile (minus features) without it
590 AC_SEARCH_LIBS(mallinfo,malloc,AC_DEFINE([HAVE_MALLINFO],[1],
591 [Define if mallinfo() is available on this platform.]))
593 dnl pthread locking functions are optional - but llvm will not be thread-safe
595 if test "$ENABLE_THREADS" -eq 1 ; then
596 AC_CHECK_LIB(pthread,pthread_mutex_init)
597 AC_SEARCH_LIBS(pthread_mutex_lock,pthread,
598 AC_DEFINE([HAVE_PTHREAD_MUTEX_LOCK],[1],
599 [Have pthread_mutex_lock]))
602 dnl===-----------------------------------------------------------------------===
604 dnl=== SECTION 6: Check for header files
606 dnl===-----------------------------------------------------------------------===
608 dnl First, use autoconf provided macros for specific headers that we need
609 dnl We don't check for ancient stuff or things that are guaranteed to be there
610 dnl by the C++ standard. We always use the <cfoo> versions of <foo.h> C headers.
611 dnl Generally we're looking for POSIX headers.
613 AC_HEADER_MMAP_ANONYMOUS
619 AC_CHECK_HEADERS([dlfcn.h execinfo.h fcntl.h inttypes.h limits.h link.h])
620 AC_CHECK_HEADERS([malloc.h setjmp.h signal.h stdint.h unistd.h utime.h])
621 AC_CHECK_HEADERS([windows.h sys/mman.h sys/param.h sys/resource.h sys/time.h])
622 AC_CHECK_HEADERS([sys/types.h malloc/malloc.h])
623 if test "$ENABLE_THREADS" -eq 1 ; then
624 AC_CHECK_HEADERS(pthread.h)
627 dnl===-----------------------------------------------------------------------===
629 dnl=== SECTION 7: Check for types and structures
631 dnl===-----------------------------------------------------------------------===
637 AC_CHECK_TYPES([int64_t],,AC_MSG_ERROR([Type int64_t required but not found]))
638 AC_CHECK_TYPES([uint64_t],,
639 AC_CHECK_TYPES([u_int64_t],,
640 AC_MSG_ERROR([Type uint64_t or u_int64_t required but not found])))
642 dnl===-----------------------------------------------------------------------===
644 dnl=== SECTION 8: Check for specific functions needed
646 dnl===-----------------------------------------------------------------------===
648 AC_CHECK_FUNCS([backtrace ceilf floorf roundf rintf nearbyintf getcwd ])
649 AC_CHECK_FUNCS([getpagesize getrusage gettimeofday isatty mkdtemp mkstemp ])
650 AC_CHECK_FUNCS([mktemp realpath sbrk setrlimit strdup strerror strerror_r ])
651 AC_CHECK_FUNCS([strtoll strtoq sysconf malloc_zone_statistics ])
652 AC_CHECK_FUNCS([_setjmp _longjmp setjmp longjmp sigsetjmp siglongjmp])
657 dnl Check for variations in the Standard C++ library and STL. These macros are
658 dnl provided by LLVM in the autoconf/m4 directory.
661 AC_CXX_HAVE_STD_ITERATOR
662 AC_CXX_HAVE_BI_ITERATOR
663 AC_CXX_HAVE_FWD_ITERATOR
667 dnl Check for mmap and mprotect support. We need both to do the JIT and for
668 dnl bytecode loading, etc. We also need to know if /dev/zero is required to
669 dnl be opened for allocating RWX memory.
672 AC_NEED_DEV_ZERO_FOR_MMAP
673 AC_CHECK_FUNC(mprotect,,
674 AC_MSG_ERROR([Function mprotect() required but not found]))
676 if test "$ac_cv_func_mmap_fixed_mapped" = "no"
678 AC_MSG_WARN([mmap() of a fixed address required but not supported])
680 if test "$ac_cv_func_mmap_file" = "no"
682 AC_MSG_WARN([mmap() of files required but not found])
685 dnl===-----------------------------------------------------------------------===
687 dnl=== SECTION 9: Additional checks, variables, etc.
689 dnl===-----------------------------------------------------------------------===
691 dnl See if the llvm-gcc executable can compile to LLVM assembly
692 AC_CACHE_CHECK([whether llvm-gcc is sane],[llvm_cv_llvmgcc_sanity],
693 [llvm_cv_llvmgcc_sanity="no"
694 if test -x "$LLVMGCC" ; then
695 cp /dev/null conftest.c
696 "$LLVMGCC" -emit-llvm -S -o - conftest.c | grep implementation > /dev/null 2>&1
697 if test $? -eq 0 ; then
698 llvm_cv_llvmgcc_sanity="yes"
703 dnl Since we have a sane llvm-gcc, identify it and its sub-tools
704 if test "$llvm_cv_llvmgcc_sanity" = "yes" ; then
705 llvmcc1path=`"$LLVMGCC" --print-prog-name=cc1`
706 AC_SUBST(LLVMCC1,$llvmcc1path)
707 llvmcc1pluspath=`"$LLVMGCC" --print-prog-name=cc1plus`
708 AC_SUBST(LLVMCC1PLUS,$llvmcc1pluspath)
709 llvmgccdir=`echo "$llvmcc1path" | sed 's,/libexec/.*,,'`
710 AC_SUBST(LLVMGCCDIR,$llvmgccdir)
711 llvmgccversion=[`"$LLVMGCC" -dumpversion 2>&1 | sed 's/^\([0-9.]*\).*/\1/'`]
712 llvmgccmajvers=[`echo $llvmgccversion | sed 's/^\([0-9]\).*/\1/'`]
713 AC_SUBST(LLVMGCC_VERSION,$llvmgccversion)
714 AC_SUBST(LLVMGCC_MAJVERS,$llvmgccmajvers)
717 dnl Propagate the shared library extension that the libltdl checks did to
718 dnl the Makefiles so we can use it there too
719 AC_SUBST(SHLIBEXT,$libltdl_cv_shlibext)
721 # Translate the various configuration directories and other basic
722 # information into substitutions that will end up in Makefile.config.in
723 # that these configured values can be used by the makefiles
724 if test "${prefix}" == "NONE" ; then
727 eval LLVM_PREFIX="${prefix}";
728 eval LLVM_BINDIR="${prefix}/bin";
729 eval LLVM_LIBDIR="${prefix}/lib";
730 eval LLVM_DATADIR="${prefix}/share/llvm";
731 eval LLVM_DOCSDIR="${prefix}/docs/llvm";
732 eval LLVM_ETCDIR="${prefix}/etc/llvm";
733 eval LLVM_INCLUDEDIR="${prefix}/include";
734 eval LLVM_INFODIR="${prefix}/info";
735 eval LLVM_MANDIR="${prefix}/man";
736 LLVM_CONFIGTIME=`date`
737 AC_SUBST(LLVM_PREFIX)
738 AC_SUBST(LLVM_BINDIR)
739 AC_SUBST(LLVM_LIBDIR)
740 AC_SUBST(LLVM_DATADIR)
741 AC_SUBST(LLVM_DOCSDIR)
742 AC_SUBST(LLVM_ETCDIR)
743 AC_SUBST(LLVM_INCLUDEDIR)
744 AC_SUBST(LLVM_INFODIR)
745 AC_SUBST(LLVM_MANDIR)
746 AC_SUBST(LLVM_CONFIGTIME)
748 # Place the various directores into the config.h file as #defines so that we
749 # can know about the installation paths within LLVM.
750 AC_DEFINE_UNQUOTED(LLVM_PREFIX,"$LLVM_PREFIX",
751 [Installation prefix directory])
752 AC_DEFINE_UNQUOTED(LLVM_BINDIR, "$LLVM_BINDIR",
753 [Installation directory for binary executables])
754 AC_DEFINE_UNQUOTED(LLVM_LIBDIR, "$LLVM_LIBDIR",
755 [Installation directory for libraries])
756 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DATADIR",
757 [Installation directory for data files])
758 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DOCSDIR",
759 [Installation directory for documentation])
760 AC_DEFINE_UNQUOTED(LLVM_ETCDIR, "$LLVM_ETCDIR",
761 [Installation directory for config files])
762 AC_DEFINE_UNQUOTED(LLVM_INCLUDEDIR, "$LLVM_INCLUDEDIR",
763 [Installation directory for include files])
764 AC_DEFINE_UNQUOTED(LLVM_INFODIR, "$LLVM_INFODIR",
765 [Installation directory for .info files])
766 AC_DEFINE_UNQUOTED(LLVM_MANDIR, "$LLVM_MANDIR",
767 [Installation directory for man pages])
768 AC_DEFINE_UNQUOTED(LLVM_CONFIGTIME, "$LLVM_CONFIGTIME",
769 [Time at which LLVM was configured])
771 dnl===-----------------------------------------------------------------------===
773 dnl=== SECTION 10: Specify the output files and generate it
775 dnl===-----------------------------------------------------------------------===
777 dnl Configure header files
778 dnl WARNING: dnl If you add or remove any of the following config headers, then
779 dnl you MUST also update Makefile.rules so that the variable FilesToConfig
780 dnl contains the same list of files as AC_CONFIG_HEADERS below. This ensures the
781 dnl files can be updated automatically when their *.in sources change.
782 AC_CONFIG_HEADERS([include/llvm/Config/config.h])
783 AC_CONFIG_HEADERS([include/llvm/Support/DataTypes.h])
784 AC_CONFIG_HEADERS([include/llvm/ADT/hash_map])
785 AC_CONFIG_HEADERS([include/llvm/ADT/hash_set])
786 AC_CONFIG_HEADERS([include/llvm/ADT/iterator])
788 dnl Configure the makefile's configuration data
789 AC_CONFIG_FILES([Makefile.config])
791 dnl Configure the RPM spec file for LLVM
792 AC_CONFIG_FILES([llvm.spec])
794 dnl Configure doxygen's configuration file
795 AC_CONFIG_FILES([docs/doxygen.cfg])
797 dnl Do the first stage of configuration for llvm-config.in.
798 AC_CONFIG_FILES([tools/llvm-config/llvm-config.in])
800 dnl Do special configuration of Makefiles
801 AC_CONFIG_COMMANDS([setup],,[llvm_src="${srcdir}"])
802 AC_CONFIG_MAKEFILE(Makefile)
803 AC_CONFIG_MAKEFILE(Makefile.common)
804 AC_CONFIG_MAKEFILE(examples/Makefile)
805 AC_CONFIG_MAKEFILE(lib/Makefile)
806 AC_CONFIG_MAKEFILE(runtime/Makefile)
807 AC_CONFIG_MAKEFILE(test/Makefile)
808 AC_CONFIG_MAKEFILE(test/Makefile.tests)
809 AC_CONFIG_MAKEFILE(tools/Makefile)
810 AC_CONFIG_MAKEFILE(utils/Makefile)
811 AC_CONFIG_MAKEFILE(projects/Makefile)
813 dnl Finally, crank out the output
816 dnl Warn loudly if llvm-gcc was not obviously working
817 if test "$llvm_cv_llvmgcc_sanity" = "no" ; then
818 AC_MSG_WARN([***** llvm-gcc/llvm-g++ was not found, or does not appear to be ])
819 AC_MSG_WARN([***** working. Please make sure you have llvmgcc and llvmg++ in])
820 AC_MSG_WARN([***** your path before configuring LLVM. The runtime libraries])
821 AC_MSG_WARN([***** (llvm/runtime) will not be built but you should be able to])
822 AC_MSG_WARN([***** build the llvm tools.])