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 (${i}) won't be configured automatically])
86 dnl===-----------------------------------------------------------------------===
88 dnl=== SECTION 2: Architecture, target, and host checks
90 dnl===-----------------------------------------------------------------------===
92 dnl Check the target for which we're compiling and the host that will do the
93 dnl compilations. This will tell us which LLVM compiler will be used for
94 dnl compiling SSA into object code. This needs to be done early because
95 dnl following tests depend on it.
98 dnl Determine the platform type and cache its value. This helps us configure
99 dnl the System library to the correct build platform.
100 AC_CACHE_CHECK([type of operating system we're on],
104 llvm_cv_os_type="AIX"
105 llvm_cv_platform_type="Unix" ;;
107 llvm_cv_os_type="Cygwin"
108 llvm_cv_platform_type="Unix" ;;
110 llvm_cv_os_type="Darwin"
111 llvm_cv_platform_type="Unix" ;;
113 llvm_cv_os_type="FreeBSD"
114 llvm_cv_platform_type="Unix" ;;
116 llvm_cv_os_type="HP-UX"
117 llvm_cv_platform_type="Unix" ;;
119 llvm_cv_os_type="Interix"
120 llvm_cv_platform_type="Unix" ;;
122 llvm_cv_os_type="Linux"
123 llvm_cv_platform_type="Unix" ;;
125 llvm_cv_os_type="SunOS"
126 llvm_cv_platform_type="Unix" ;;
128 llvm_cv_os_type="Win32"
129 llvm_cv_platform_type="Win32" ;;
131 llvm_cv_os_type="MingW"
132 llvm_cv_platform_type="Win32" ;;
134 llvm_cv_os_type="Unknown"
135 llvm_cv_platform_type="Unknown" ;;
138 dnl Make sure we aren't attempting to configure for an unknown system
139 if test "$llvm_cv_os_type" = "Unknown" ; then
140 AC_MSG_ERROR([Operating system is unknown, configure can't continue])
143 dnl Set the "OS" Makefile variable based on the platform type so the
144 dnl makefile can configure itself to specific build hosts
145 AC_SUBST(OS,$llvm_cv_os_type)
147 dnl Set the "LLVM_ON_*" variables based on llvm_cvs_platform_type
148 dnl This is used by lib/System to determine the basic kind of implementation
150 case $llvm_cv_platform_type in
152 AC_DEFINE([LLVM_ON_UNIX],[1],[Define if this is Unixish platform])
153 AC_SUBST(LLVM_ON_UNIX,[1])
154 AC_SUBST(LLVM_ON_WIN32,[0])
157 AC_DEFINE([LLVM_ON_WIN32],[1],[Define if this is Win32ish platform])
158 AC_SUBST(LLVM_ON_UNIX,[0])
159 AC_SUBST(LLVM_ON_WIN32,[1])
163 dnl Determine what our target architecture is and configure accordingly.
164 dnl This will allow Makefiles to make a distinction between the hardware and
166 AC_CACHE_CHECK([target architecture],[llvm_cv_target_arch],
168 i?86-*) llvm_cv_target_arch="x86" ;;
169 amd64-* | x86_64-*) llvm_cv_target_arch="x86_64" ;;
170 sparc*-*) llvm_cv_target_arch="Sparc" ;;
171 powerpc*-*) llvm_cv_target_arch="PowerPC" ;;
172 alpha*-*) llvm_cv_target_arch="Alpha" ;;
173 ia64-*) llvm_cv_target_arch="IA64" ;;
174 *) llvm_cv_target_arch="Unknown" ;;
177 if test "$llvm_cv_target_arch" = "Unknown" ; then
178 AC_MSG_WARN([Configuring LLVM for an unknown target archicture])
181 dnl Define a substitution, ARCH, for the target architecture
182 AC_SUBST(ARCH,$llvm_cv_target_arch)
184 dnl Check for the endianness of the target
185 AC_C_BIGENDIAN(AC_SUBST([ENDIAN],[big]),AC_SUBST([ENDIAN],[little]))
187 dnl Check to see if there's a "CVS" directory indicating that this build is
188 dnl being done from a CVS checkout. This sets up several defaults for the
189 dnl command line switches. When we build with a CVS directory, we get a
190 dnl debug with assertions turned on. Without, we assume a source release and we
191 dnl get an optimized build without assertions. See --enable-optimized and
192 dnl --enable-assertions below
193 if test -d "CVS" -o -d "${srcdir}/CVS"; then
196 AC_SUBST(CVSBUILD,[[CVSBUILD=1]])
202 dnl===-----------------------------------------------------------------------===
204 dnl=== SECTION 3: Command line arguments for the configure script.
206 dnl===-----------------------------------------------------------------------===
208 dnl --enable-optimized : check whether they want to do an optimized build:
209 AC_ARG_ENABLE(optimized, AS_HELP_STRING(
210 [--enable-optimized,Compile with optimizations enabled (default is NO)]),,enableval=$optimize)
211 if test ${enableval} = "no" ; then
212 AC_SUBST(ENABLE_OPTIMIZED,[[]])
214 AC_SUBST(ENABLE_OPTIMIZED,[[ENABLE_OPTIMIZED=1]])
217 dnl --enable-assertions : check whether they want to turn on assertions or not:
218 AC_ARG_ENABLE(assertions,AS_HELP_STRING(
219 [--enable-assertions,Compile with assertion checks enabled (default is YES)]),, enableval="yes")
220 if test ${enableval} = "yes" ; then
221 AC_SUBST(DISABLE_ASSERTIONS,[[]])
223 AC_SUBST(DISABLE_ASSERTIONS,[[DISABLE_ASSERTIONS=1]])
226 dnl --enable-debug-runtime : should runtime libraries have debug symbols?
227 AC_ARG_ENABLE(debug-runtime,
228 AS_HELP_STRING([--enable-debug-runtime,Build runtime libs with debug symbols (default is NO)]),,enableval=no)
229 if test ${enableval} = "no" ; then
230 AC_SUBST(DEBUG_RUNTIME,[[]])
232 AC_SUBST(DEBUG_RUNTIME,[[DEBUG_RUNTIME=1]])
235 dnl --enable-jit: check whether they want to enable the jit
237 AS_HELP_STRING(--enable-jit,
238 [Enable Just In Time Compiling (default is YES)]),,
240 if test ${enableval} = "no"
244 case "$llvm_cv_target_arch" in
245 x86) AC_SUBST(TARGET_HAS_JIT,1) ;;
246 Sparc) AC_SUBST(TARGET_HAS_JIT,1) ;;
247 PowerPC) AC_SUBST(TARGET_HAS_JIT,1) ;;
248 x86_64) AC_SUBST(TARGET_HAS_JIT,0) ;;
249 Alpha) AC_SUBST(TARGET_HAS_JIT,1) ;;
250 IA64) AC_SUBST(TARGET_HAS_JIT,0) ;;
251 *) AC_SUBST(TARGET_HAS_JIT,0) ;;
255 dnl Allow enablement of doxygen generated documentation
256 AC_ARG_ENABLE(doxygen,
257 AS_HELP_STRING([--enable-doxygen],
258 [Build doxygen documentation (default is NO)]),,
261 yes) AC_SUBST(ENABLE_DOXYGEN,[1]) ;;
262 no) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
263 default) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
264 *) AC_MSG_ERROR([Invalid setting for --enable-doxygen. Use "yes" or "no"]) ;;
267 dnl Allow disablement of threads
268 AC_ARG_ENABLE(threads,
269 AS_HELP_STRING([--enable-threads],
270 [Use threads if available (default is YES)]),,
273 yes) AC_SUBST(ENABLE_THREADS,[1]) ;;
274 no) AC_SUBST(ENABLE_THREADS,[0]) ;;
275 *) AC_MSG_ERROR([Invalid setting for --enable-threads. Use "yes" or "no"]) ;;
277 AC_DEFINE_UNQUOTED([ENABLE_THREADS],$ENABLE_THREADS,[Define if threads enabled])
279 dnl Allow specific targets to be specified for building (or not)
281 AC_ARG_ENABLE([targets],AS_HELP_STRING([--enable-target],
282 [Build specific host targets: all,host-only,{target-name} (default=all)]),,
285 all) TARGETS_TO_BUILD="X86 Sparc SparcV9 PowerPC Alpha IA64" ;;
287 case "$llvm_cv_target_arch" in
288 x86) TARGETS_TO_BUILD="X86" ;;
289 x86_64) TARGETS_TO_BUILD="X86" ;;
290 Sparc) TARGETS_TO_BUILD="Sparc SparcV9" ;;
291 PowerPC) TARGETS_TO_BUILD="PowerPC" ;;
292 Alpha) TARGETS_TO_BUILD="Alpha" ;;
293 IA64) TARGETS_TO_BUILD="IA64" ;;
294 *) AC_MSG_ERROR([Can not set target to build]) ;;
297 *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
299 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
300 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
301 sparc) TARGETS_TO_BUILD="Sparc SparcV9 $TARGETS_TO_BUILD" ;;
302 powerpc) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
303 alpha) TARGETS_TO_BUILD="Alpha $TARGETS_TO_BUILD" ;;
304 ia64) TARGETS_TO_BUILD="IA64 $TARGETS_TO_BUILD" ;;
305 *) AC_MSG_ERROR([Unrecognized target $a_target]) ;;
310 TARGETS_TO_BUILD="CBackend $TARGETS_TO_BUILD"
311 AC_SUBST(TARGETS_TO_BUILD,$TARGETS_TO_BUILD)
313 dnl Allow a specific llvm-gcc/llvm-g++ pair to be used with this LLVM config.
314 AC_ARG_WITH(llvmgccdir,
315 AS_HELP_STRING([--with-llvmgccdir],
316 [Specify location of llvm-gcc install dir (default searches PATH)]),,
319 default) WITH_LLVMGCCDIR=default ;;
320 /*) WITH_LLVMGCCDIR=$withval ;;
321 *) AC_MSG_ERROR([Invalid path for --with-llvmgccdir. Provide full path]) ;;
325 dnl===-----------------------------------------------------------------------===
327 dnl=== SECTION 4: Check for programs we need and that they are the right version
329 dnl===-----------------------------------------------------------------------===
331 dnl Check for compilation tools
338 dnl Check for the tools that the makefiles require
341 AC_PATH_PROG(CMP, [cmp], [cmp])
342 AC_PATH_PROG(CP, [cp], [cp])
343 AC_PATH_PROG(DATE, [date], [date])
344 AC_PATH_PROG(FIND, [find], [find])
345 AC_PATH_PROG(GREP, [grep], [grep])
346 AC_PATH_PROG(MKDIR,[mkdir],[mkdir])
347 AC_PATH_PROG(MV, [mv], [mv])
349 AC_PATH_PROG(RM, [rm], [rm])
350 AC_PATH_PROG(SED, [sed], [sed])
351 AC_PATH_PROG(TAR, [tar], [gtar])
352 AC_PATH_PROG(GRAPHVIZ, [Graphviz], [echo Graphviz])
353 if test "$GRAPHVIZ" != "echo Graphviz" ; then
354 AC_DEFINE([HAVE_GRAPHVIZ],[1],[Define if the Graphviz program is available])
355 AC_DEFINE_UNQUOTED([LLVM_PATH_GRAPHVIZ],"$GRAPHVIZ",
356 [Define to path to Graphviz program if found or 'echo Graphviz' otherwise])
358 AC_PATH_PROG(GV, [gv], [echo gv])
359 if test "$GV" != "echo gv" ; then
360 AC_DEFINE([HAVE_GV],[1],[Define if the gv program is available])
361 AC_DEFINE_UNQUOTED([LLVM_PATH_GV],"$GV",
362 [Define to path to gv program if found or 'echo gv' otherwise])
365 dnl Look for a sufficiently recent version of Perl.
366 LLVM_PROG_PERL([5.006])
368 if test x"$PERL" = xnone; then
369 AC_SUBST(HAVE_PERL,0)
371 AC_SUBST(HAVE_PERL,1)
374 dnl Find the install program
377 dnl Checks for documentation and testing tools that we can do without. If these
378 dnl are not found then they are set to "true" which always succeeds but does
379 dnl nothing. This just lets the build output show that we could have done
380 dnl something if the tool was available.
381 AC_PATH_PROG(BZIP2,[bzip2],[true bzip2])
382 AC_PATH_PROG(DOT,[dot],[true dot])
383 AC_PATH_PROG(DOXYGEN,[doxygen],[true doxygen])
384 AC_PATH_PROG(ETAGS,[etags],[true etags])
385 AC_PATH_PROG(GROFF,[groff],[true groff])
386 AC_PATH_PROG(GZIP,[gzip],[true gzip])
387 AC_PATH_PROG(POD2HTML,[pod2html],[true pod2html])
388 AC_PATH_PROG(POD2MAN,[pod2man],[true pod2man])
389 AC_PATH_PROG(RUNTEST,[runtest],[true runtest])
391 AC_PATH_PROG(ZIP,[zip],[true zip])
393 dnl Determine if the linker supports the -R option.
396 dnl Check for libtool and the library that has dlopen function (which must come
397 dnl before the AC_PROG_LIBTOOL check in order to enable dlopening libraries with
403 if test "$lt_cv_dlopen_self" = "yes" ; then
404 AC_DEFINE([CAN_DLOPEN_SELF],[1],
405 [Define if dlopen(0) will open the symbols of the program])
408 dnl Check if we know how to tell etags we are using C++:
409 etags_version=`$ETAGS --version 2>&1`
410 case "$etags_version" in
411 *[Ee]xuberant*) ETAGSFLAGS="--language-force=c++" ;;
412 *GNU\ Emacs*) ETAGSFLAGS="-l c++" ;;
415 AC_SUBST(ETAGSFLAGS,$ETAGSFLAGS)
417 if test "$WITH_LLVMGCCDIR" = "default" ; then
418 LLVMGCC="llvm-gcc${EXEEXT}"
419 LLVMGXX="llvm-g++${EXEEXT}"
420 AC_PATH_PROG(LLVMGCC, $LLVMGCC, [])
421 AC_PATH_PROG(LLVMGXX, $LLVMGXX, [])
423 LLVMGCC="$WITH_LLVMGCCDIR/bin/llvm-gcc${EXEEXT}"
424 LLVMGXX="$WITH_LLVMGCCDIR/bin/llvm-g++${EXEEXT}"
425 AC_SUBST(LLVMGCC,$LLVMGCC)
426 AC_SUBST(LLVMGXX,$LLVMGXX)
429 AC_MSG_CHECKING([tool compatibility])
431 dnl Ensure that compilation tools are GCC or a GNU compatible compiler such as
432 dnl ICC; we use GCC specific options in the makefiles so the compiler needs
433 dnl to support those options.
434 dnl "icc" emits gcc signatures
435 dnl "icc -no-gcc" emits no gcc signature BUT is still compatible
447 if test "$GCC" != "yes" && test "$ICC" != "yes"
449 AC_MSG_ERROR([gcc|icc required but not found])
452 dnl Ensure that compilation tools are GCC; we use GCC specific extensions
453 if test "$GXX" != "yes" && test "$IXX" != "yes"
455 AC_MSG_ERROR([g++|icc required but not found])
458 dnl Verify that GCC is version 3.0 or higher
459 if test "$GCC" = "yes"
461 gccmajor=`$CC --version | head -n 1 | sed 's/[[^0-9]]*\([[0-9.]]\).*/\1/'`
462 if test "$gccmajor" -lt "3"
464 AC_MSG_ERROR([gcc 3.x required, but you have a lower version])
468 dnl Check for GNU Make. We use its extensions, so don't build without it
469 if test -z "$llvm_cv_gnu_make_command"
471 AC_MSG_ERROR([GNU Make required but not found])
474 dnl Tool compatibility is okay if we make it here.
477 dnl===-----------------------------------------------------------------------===
479 dnl=== SECTION 5: Check for libraries
481 dnl===-----------------------------------------------------------------------===
483 dnl libelf is for sparc only; we can ignore it if we don't have it
484 AC_CHECK_LIB(elf, elf_begin)
487 dnl lt_dlopen may be required for plugin support.
488 AC_SEARCH_LIBS(lt_dlopen,ltdl,AC_DEFINE([HAVE_LT_DLOPEN],[1],
489 [Define if lt_dlopen() is available on this platform]),
490 AC_MSG_WARN([lt_dlopen() not found - plugin support might
493 dnl dlopen() is required for plugin support.
494 AC_SEARCH_LIBS(dlopen,dl,AC_DEFINE([HAVE_DLOPEN],[1],
495 [Define if dlopen() is available on this platform.]),
496 AC_MSG_WARN([dlopen() not found - disabling plugin support]))
498 dnl mallinfo is optional; the code can compile (minus features) without it
499 AC_SEARCH_LIBS(mallinfo,malloc,AC_DEFINE([HAVE_MALLINFO],[1],
500 [Define if mallinfo() is available on this platform.]))
502 dnl pthread locking functions are optional - but llvm will not be thread-safe
504 if test "$ENABLE_THREADS" -eq 1 ; then
505 AC_CHECK_LIB(pthread,pthread_mutex_init)
506 AC_SEARCH_LIBS(pthread_mutex_lock,pthread,
507 AC_DEFINE([HAVE_PTHREAD_MUTEX_LOCK],[1],
508 [Have pthread_mutex_lock]))
511 dnl===-----------------------------------------------------------------------===
513 dnl=== SECTION 6: Check for header files
515 dnl===-----------------------------------------------------------------------===
517 dnl First, use autoconf provided macros for specific headers that we need
518 dnl We don't check for ancient stuff or things that are guaranteed to be there
519 dnl by the C++ standard. We always use the <cfoo> versions of <foo.h> C headers.
520 dnl Generally we're looking for POSIX headers.
522 AC_HEADER_MMAP_ANONYMOUS
528 AC_CHECK_HEADERS([dlfcn.h execinfo.h fcntl.h inttypes.h limits.h link.h])
529 AC_CHECK_HEADERS([malloc.h signal.h stdint.h unistd.h utime.h windows.h])
530 AC_CHECK_HEADERS([sys/mman.h sys/param.h sys/resource.h sys/time.h sys/types.h])
531 AC_CHECK_HEADERS([malloc/malloc.h])
532 if test "$ENABLE_THREADS" -eq 1 ; then
533 AC_CHECK_HEADERS(pthread.h)
536 dnl===-----------------------------------------------------------------------===
538 dnl=== SECTION 7: Check for types and structures
540 dnl===-----------------------------------------------------------------------===
546 AC_CHECK_TYPES([int64_t],,AC_MSG_ERROR([Type int64_t required but not found]))
547 AC_CHECK_TYPES([uint64_t],,
548 AC_CHECK_TYPES([u_int64_t],,
549 AC_MSG_ERROR([Type uint64_t or u_int64_t required but not found])))
551 dnl===-----------------------------------------------------------------------===
553 dnl=== SECTION 8: Check for specific functions needed
555 dnl===-----------------------------------------------------------------------===
557 AC_CHECK_FUNCS([backtrace ceilf floorf roundf rintf nearbyintf getcwd ])
558 AC_CHECK_FUNCS([getpagesize getrusage gettimeofday isatty mkdtemp mkstemp ])
559 AC_CHECK_FUNCS([mktemp realpath sbrk setrlimit strdup strerror strerror_r ])
560 AC_CHECK_FUNCS([strtoll strtoq sysconf malloc_zone_statistics ])
565 dnl Check for variations in the Standard C++ library and STL. These macros are
566 dnl provided by LLVM in the autoconf/m4 directory.
569 AC_CXX_HAVE_STD_ITERATOR
570 AC_CXX_HAVE_BI_ITERATOR
571 AC_CXX_HAVE_FWD_ITERATOR
575 dnl Check for mmap and mprotect support. We need both to do the JIT and for
576 dnl bytecode loading, etc. We also need to know if /dev/zero is required to
577 dnl be opened for allocating RWX memory.
580 AC_NEED_DEV_ZERO_FOR_MMAP
581 AC_CHECK_FUNC(mprotect,,
582 AC_MSG_ERROR([Function mprotect() required but not found]))
584 if test "$ac_cv_func_mmap_fixed_mapped" = "no"
586 AC_MSG_WARN([mmap() of a fixed address required but not supported])
588 if test "$ac_cv_func_mmap_file" = "no"
590 AC_MSG_WARN([mmap() of files required but not found])
593 dnl===-----------------------------------------------------------------------===
595 dnl=== SECTION 9: Additional checks, variables, etc.
597 dnl===-----------------------------------------------------------------------===
599 dnl See if the llvm-gcc executable can compile to LLVM assembly
600 AC_CACHE_CHECK([whether llvm-gcc is sane],[llvm_cv_llvmgcc_sanity],
601 [llvm_cv_llvmgcc_sanity="no"
602 if test -x "$LLVMGCC" ; then
603 cp /dev/null conftest.c
604 "$LLVMGCC" -emit-llvm -S -o - conftest.c | grep implementation > /dev/null 2>&1
605 if test $? -eq 0 ; then
606 llvm_cv_llvmgcc_sanity="yes"
611 dnl Since we have a sane llvm-gcc, identify it and its sub-tools
612 if test "$llvm_cv_llvmgcc_sanity" = "yes" ; then
613 llvmcc1path=`"$LLVMGCC" --print-prog-name=cc1`
614 AC_SUBST(LLVMCC1,$llvmcc1path)
615 llvmcc1pluspath=`"$LLVMGCC" --print-prog-name=cc1plus`
616 AC_SUBST(LLVMCC1PLUS,$llvmcc1pluspath)
617 llvmgccdir=`echo "$llvmcc1path" | sed 's,/libexec/.*,,'`
618 AC_SUBST(LLVMGCCDIR,$llvmgccdir)
619 llvmgccversion=[`"$LLVMGCC" -v 2>&1 | grep '^gcc version' | sed 's/^gcc version \([0-9.]*\).*/\1/'`]
620 llvmgccmajvers=[`echo $llvmgccversion | sed 's/^\([0-9]\).*/\1/'`]
621 AC_SUBST(LLVMGCC_VERSION,$llvmgccversion)
622 AC_SUBST(LLVMGCC_MAJVERS,$llvmgccmajvers)
625 dnl Propagate the shared library extension that the libltdl checks did to
626 dnl the Makefiles so we can use it there too
627 AC_SUBST(SHLIBEXT,$libltdl_cv_shlibext)
629 # Translate the various configuration directories and other basic
630 # information into substitutions that will end up in Makefile.config.in
631 # that these configured values can be used by the makefiles
632 eval LLVM_PREFIX="${prefix}";
633 eval LLVM_BINDIR="${prefix}/bin";
634 eval LLVM_LIBDIR="${prefix}/lib";
635 eval LLVM_DATADIR="${prefix}/share/llvm";
636 eval LLVM_DOCSDIR="${prefix}/docs/llvm";
637 eval LLVM_ETCDIR="${prefix}/etc/llvm";
638 eval LLVM_INCLUDEDIR="${prefix}/include";
639 eval LLVM_INFODIR="${prefix}/info";
640 eval LLVM_MANDIR="${prefix}/man";
641 LLVM_CONFIGTIME=`date`
642 AC_SUBST(LLVM_PREFIX)
643 AC_SUBST(LLVM_BINDIR)
644 AC_SUBST(LLVM_LIBDIR)
645 AC_SUBST(LLVM_DATADIR)
646 AC_SUBST(LLVM_DOCSDIR)
647 AC_SUBST(LLVM_ETCDIR)
648 AC_SUBST(LLVM_INCLUDEDIR)
649 AC_SUBST(LLVM_INFODIR)
650 AC_SUBST(LLVM_MANDIR)
651 AC_SUBST(LLVM_CONFIGTIME)
653 # Place the various directores into the config.h file as #defines so that we
654 # can know about the installation paths within LLVM.
655 AC_DEFINE_UNQUOTED(LLVM_PREFIX,"$LLVM_PREFIX",
656 [Installation prefix directory])
657 AC_DEFINE_UNQUOTED(LLVM_BINDIR, "$LLVM_BINDIR",
658 [Installation directory for binary executables])
659 AC_DEFINE_UNQUOTED(LLVM_LIBDIR, "$LLVM_LIBDIR",
660 [Installation directory for libraries])
661 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DATADIR",
662 [Installation directory for data files])
663 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DOCSDIR",
664 [Installation directory for documentation])
665 AC_DEFINE_UNQUOTED(LLVM_ETCDIR, "$LLVM_ETCDIR",
666 [Installation directory for config files])
667 AC_DEFINE_UNQUOTED(LLVM_INCLUDEDIR, "$LLVM_INCLUDEDIR",
668 [Installation directory for include files])
669 AC_DEFINE_UNQUOTED(LLVM_INFODIR, "$LLVM_INFODIR",
670 [Installation directory for .info files])
671 AC_DEFINE_UNQUOTED(LLVM_MANDIR, "$LLVM_MANDIR",
672 [Installation directory for man pages])
673 AC_DEFINE_UNQUOTED(LLVM_CONFIGTIME, "$LLVM_CONFIGTIME",
674 [Time at which LLVM was configured])
676 dnl===-----------------------------------------------------------------------===
678 dnl=== SECTION 10: Specify the output files and generate it
680 dnl===-----------------------------------------------------------------------===
682 dnl Configure header files
683 dnl WARNING: dnl If you add or remove any of the following config headers, then
684 dnl you MUST also update Makefile.rules so that the variable FilesToConfig
685 dnl contains the same list of files as AC_CONFIG_HEADERS below. This ensures the
686 dnl files can be updated automatically when their *.in sources change.
687 AC_CONFIG_HEADERS([include/llvm/Config/config.h])
688 AC_CONFIG_HEADERS([include/llvm/Support/DataTypes.h])
689 AC_CONFIG_HEADERS([include/llvm/ADT/hash_map])
690 AC_CONFIG_HEADERS([include/llvm/ADT/hash_set])
691 AC_CONFIG_HEADERS([include/llvm/ADT/iterator])
693 dnl Configure the makefile's configuration data
694 AC_CONFIG_FILES([Makefile.config])
696 dnl Configure doxygen's configuration file
697 AC_CONFIG_FILES([docs/doxygen.cfg])
699 dnl Do the first stage of configuration for llvm-config.in.
700 AC_CONFIG_FILES([utils/llvm-config/llvm-config.in])
702 dnl Do special configuration of Makefiles
703 AC_CONFIG_COMMANDS([setup],,[llvm_src="${srcdir}"])
704 AC_CONFIG_MAKEFILE(Makefile)
705 AC_CONFIG_MAKEFILE(Makefile.common)
706 AC_CONFIG_MAKEFILE(examples/Makefile)
707 AC_CONFIG_MAKEFILE(lib/Makefile)
708 AC_CONFIG_MAKEFILE(runtime/Makefile)
709 AC_CONFIG_MAKEFILE(test/Makefile)
710 AC_CONFIG_MAKEFILE(test/Makefile.tests)
711 AC_CONFIG_MAKEFILE(tools/Makefile)
712 AC_CONFIG_MAKEFILE(utils/Makefile)
713 AC_CONFIG_MAKEFILE(projects/Makefile)
715 dnl Finally, crank out the output
718 dnl Warn loudly if llvm-gcc was not obviously working
719 if test "$llvm_cv_llvmgcc_sanity" = "no" ; then
720 AC_MSG_WARN([***** llvm-gcc/llvm-g++ was not found, or does not appear to be ])
721 AC_MSG_WARN([***** working. Please make sure you have llvmgcc and llvmg++ in])
722 AC_MSG_WARN([***** your path before configuring LLVM. The runtime libraries])
723 AC_MSG_WARN([***** (llvm/runtime) will not be built but you should be able to])
724 AC_MSG_WARN([***** build the llvm tools.])