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]],[[2.0cvs]],[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 default) AC_SUBST(ENABLE_THREADS,[1]) ;;
321 *) AC_MSG_ERROR([Invalid setting for --enable-threads. Use "yes" or "no"]) ;;
323 AC_DEFINE_UNQUOTED([ENABLE_THREADS],$ENABLE_THREADS,[Define if threads enabled])
325 dnl Allow building with position independent code
327 AS_HELP_STRING([--enable-pic],
328 [Build LLVM with Position Independent Code (default is NO)]),,
331 yes) AC_SUBST(ENABLE_PIC,[1]) ;;
332 no) AC_SUBST(ENABLE_PIC,[0]) ;;
333 default) AC_SUBST(ENABLE_PIC,[0]) ;;
334 *) AC_MSG_ERROR([Invalid setting for --enable-pic. Use "yes" or "no"]) ;;
336 AC_DEFINE_UNQUOTED([ENABLE_PIC],$ENABLE_PIC,
337 [Define if position independent code is enabled])
339 dnl Allow specific targets to be specified for building (or not)
341 AC_ARG_ENABLE([targets],AS_HELP_STRING([--enable-targets],
342 [Build specific host targets: all,host-only,{target-name} (default=all)]),,
345 all) TARGETS_TO_BUILD="X86 Sparc PowerPC Alpha IA64 ARM" ;;
347 case "$llvm_cv_target_arch" in
348 x86) TARGETS_TO_BUILD="X86" ;;
349 x86_64) TARGETS_TO_BUILD="X86" ;;
350 Sparc) TARGETS_TO_BUILD="Sparc" ;;
351 PowerPC) TARGETS_TO_BUILD="PowerPC" ;;
352 Alpha) TARGETS_TO_BUILD="Alpha" ;;
353 IA64) TARGETS_TO_BUILD="IA64" ;;
354 *) AC_MSG_ERROR([Can not set target to build]) ;;
357 *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
359 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
360 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
361 sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
362 powerpc) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
363 alpha) TARGETS_TO_BUILD="Alpha $TARGETS_TO_BUILD" ;;
364 ia64) TARGETS_TO_BUILD="IA64 $TARGETS_TO_BUILD" ;;
365 *) AC_MSG_ERROR([Unrecognized target $a_target]) ;;
370 TARGETS_TO_BUILD="CBackend $TARGETS_TO_BUILD"
371 AC_SUBST(TARGETS_TO_BUILD,$TARGETS_TO_BUILD)
373 dnl Prevent the CBackend from using printf("%a") for floating point so older
374 dnl C compilers that cannot deal with the 0x0p+0 hex floating point format
375 dnl can still compile the CBE's output
376 AC_ARG_ENABLE([cbe-printf-a],AS_HELP_STRING([--enable-cbe-printf-a],
377 [Enable C Backend output with hex floating point via %a (default is YES)]),,
380 yes) AC_SUBST(ENABLE_CBE_PRINTF_A,[1]) ;;
381 no) AC_SUBST(ENABLE_CBE_PRINTF_A,[0]) ;;
382 default) AC_SUBST(ENABLE_CBE_PRINTF_A,[1]) ;;
383 *) AC_MSG_ERROR([Invalid setting for --enable-cbe-printf-a. Use "yes" or "no"]) ;;
385 AC_DEFINE_UNQUOTED([ENABLE_CBE_PRINTF_A],$ENABLE_CBE_PRINTF_A,
386 [Define if CBE is enabled for printf %a output])
388 dnl Allow a specific llvm-gcc/llvm-g++ pair to be used with this LLVM config.
389 AC_ARG_WITH(llvmgccdir,
390 AS_HELP_STRING([--with-llvmgccdir],
391 [Specify location of llvm-gcc install dir (default searches PATH)]),,
394 default) WITH_LLVMGCCDIR=default ;;
395 /* | [[A-Za-z]]:[[\\/]]*) WITH_LLVMGCCDIR=$withval ;;
396 *) AC_MSG_ERROR([Invalid path for --with-llvmgccdir. Provide full path]) ;;
399 dnl Specify extra build options
400 AC_ARG_WITH(extra-options,
401 AS_HELP_STRING([--with-extra-options],
402 [Specify addtional options to compile LLVM with]),,
405 default) EXTRA_OPTIONS= ;;
406 *) EXTRA_OPTIONS=$withval ;;
408 AC_SUBST(EXTRA_OPTIONS,$EXTRA_OPTIONS)
410 dnl===-----------------------------------------------------------------------===
412 dnl=== SECTION 4: Check for programs we need and that they are the right version
414 dnl===-----------------------------------------------------------------------===
416 dnl Check for compilation tools
426 dnl Check for the tools that the makefiles require
429 AC_PATH_PROG(CMP, [cmp], [cmp])
430 AC_PATH_PROG(CP, [cp], [cp])
431 AC_PATH_PROG(DATE, [date], [date])
432 AC_PATH_PROG(FIND, [find], [find])
433 AC_PATH_PROG(GREP, [grep], [grep])
434 AC_PATH_PROG(MKDIR,[mkdir],[mkdir])
435 AC_PATH_PROG(MV, [mv], [mv])
437 AC_PATH_PROG(RM, [rm], [rm])
438 AC_PATH_PROG(SED, [sed], [sed])
439 AC_PATH_PROG(TAR, [tar], [gtar])
440 AC_PATH_PROG(BINPWD,[pwd], [pwd])
442 dnl Looking for misc. graph plotting software
443 AC_PATH_PROG(GRAPHVIZ, [Graphviz], [echo Graphviz])
444 if test "$GRAPHVIZ" != "echo Graphviz" ; then
445 AC_DEFINE([HAVE_GRAPHVIZ],[1],[Define if the Graphviz program is available])
446 dnl If we're targeting for mingw we should emit windows paths, not msys
447 if test "$llvm_cv_os_type" = "MingW" ; then
448 GRAPHVIZ=`echo $GRAPHVIZ | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
450 AC_DEFINE_UNQUOTED([LLVM_PATH_GRAPHVIZ],"$GRAPHVIZ${EXEEXT}",
451 [Define to path to Graphviz program if found or 'echo Graphviz' otherwise])
453 AC_PATH_PROG(DOT, [dot], [echo dot])
454 if test "$DOT" != "echo dot" ; then
455 AC_DEFINE([HAVE_DOT],[1],[Define if the dot program is available])
456 dnl If we're targeting for mingw we should emit windows paths, not msys
457 if test "$llvm_cv_os_type" = "MingW" ; then
458 DOT=`echo $DOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
460 AC_DEFINE_UNQUOTED([LLVM_PATH_DOT],"$DOT${EXEEXT}",
461 [Define to path to dot program if found or 'echo dot' otherwise])
463 AC_PATH_PROGS(GV, [gv gsview32], [echo gv])
464 if test "$GV" != "echo gv" ; then
465 AC_DEFINE([HAVE_GV],[1],[Define if the gv program is available])
466 dnl If we're targeting for mingw we should emit windows paths, not msys
467 if test "$llvm_cv_os_type" = "MingW" ; then
468 GV=`echo $GV | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
470 AC_DEFINE_UNQUOTED([LLVM_PATH_GV],"$GV${EXEEXT}",
471 [Define to path to gv program if found or 'echo gv' otherwise])
473 AC_PATH_PROG(DOTTY, [dotty], [echo dotty])
474 if test "$DOTTY" != "echo dotty" ; then
475 AC_DEFINE([HAVE_DOTTY],[1],[Define if the dotty program is available])
476 dnl If we're targeting for mingw we should emit windows paths, not msys
477 if test "$llvm_cv_os_type" = "MingW" ; then
478 DOTTY=`echo $DOTTY | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
480 AC_DEFINE_UNQUOTED([LLVM_PATH_DOTTY],"$DOTTY${EXEEXT}",
481 [Define to path to dotty program if found or 'echo dotty' otherwise])
484 dnl Look for a sufficiently recent version of Perl.
485 LLVM_PROG_PERL([5.006])
487 if test x"$PERL" = xnone; then
488 AC_SUBST(HAVE_PERL,0)
490 AC_SUBST(HAVE_PERL,1)
493 dnl Find the install program
496 dnl Checks for documentation and testing tools that we can do without. If these
497 dnl are not found then they are set to "true" which always succeeds but does
498 dnl nothing. This just lets the build output show that we could have done
499 dnl something if the tool was available.
500 AC_PATH_PROG(BZIP2,[bzip2],[echo "Skipped: bzip2 not found"])
501 AC_PATH_PROG(DOXYGEN,[doxygen],[echo "Skipped: doxygen not found"])
502 AC_PATH_PROG(GROFF,[groff],[echo "Skipped: groff not found"])
503 AC_PATH_PROG(GZIP,[gzip],[echo "Skipped: gzip not found"])
504 AC_PATH_PROG(POD2HTML,[pod2html],[echo "Skipped: pod2html not found"])
505 AC_PATH_PROG(POD2MAN,[pod2man],[echo "Skipped: pod2man not found"])
506 AC_PATH_PROG(RUNTEST,[runtest],[echo "Skipped: runtest not found"])
508 AC_PATH_PROG(ZIP,[zip],[echo "Skipped: zip not found"])
510 dnl Determine if the linker supports the -R option.
513 dnl Check for libtool and the library that has dlopen function (which must come
514 dnl before the AC_PROG_LIBTOOL check in order to enable dlopening libraries with
520 if test "$lt_cv_dlopen_self" = "yes" ; then
521 AC_DEFINE([CAN_DLOPEN_SELF],[1],
522 [Define if dlopen(0) will open the symbols of the program])
525 dnl Check if we know how to tell etags we are using C++:
526 etags_version=`$ETAGS --version 2>&1`
527 case "$etags_version" in
528 *[Ee]xuberant*) ETAGSFLAGS="--language-force=c++" ;;
529 *GNU\ Emacs*) ETAGSFLAGS="-l c++" ;;
532 AC_SUBST(ETAGSFLAGS,$ETAGSFLAGS)
534 if test "$WITH_LLVMGCCDIR" = "default" ; then
535 LLVMGCC="llvm-gcc${EXEEXT}"
536 LLVMGXX="llvm-g++${EXEEXT}"
537 AC_PATH_PROG(LLVMGCC, $LLVMGCC, [])
538 AC_PATH_PROG(LLVMGXX, $LLVMGXX, [])
540 LLVMGCC="$WITH_LLVMGCCDIR/bin/llvm-gcc${EXEEXT}"
541 LLVMGXX="$WITH_LLVMGCCDIR/bin/llvm-g++${EXEEXT}"
542 AC_SUBST(LLVMGCC,$LLVMGCC)
543 AC_SUBST(LLVMGXX,$LLVMGXX)
546 AC_MSG_CHECKING([tool compatibility])
548 dnl Ensure that compilation tools are GCC or a GNU compatible compiler such as
549 dnl ICC; we use GCC specific options in the makefiles so the compiler needs
550 dnl to support those options.
551 dnl "icc" emits gcc signatures
552 dnl "icc -no-gcc" emits no gcc signature BUT is still compatible
564 if test "$GCC" != "yes" && test "$ICC" != "yes"
566 AC_MSG_ERROR([gcc|icc required but not found])
569 dnl Ensure that compilation tools are GCC; we use GCC specific extensions
570 if test "$GXX" != "yes" && test "$IXX" != "yes"
572 AC_MSG_ERROR([g++|icc required but not found])
575 dnl Verify that GCC is version 3.0 or higher
576 if test "$GCC" = "yes"
578 gccmajor=`$CC --version | head -n 1 | sed 's/[[^0-9]]*\([[0-9.]]\).*/\1/'`
579 if test "$gccmajor" -lt "3"
581 AC_MSG_ERROR([gcc 3.x required, but you have a lower version])
585 dnl Check for GNU Make. We use its extensions, so don't build without it
586 if test -z "$llvm_cv_gnu_make_command"
588 AC_MSG_ERROR([GNU Make required but not found])
591 dnl Tool compatibility is okay if we make it here.
594 dnl===-----------------------------------------------------------------------===
596 dnl=== SECTION 5: Check for libraries
598 dnl===-----------------------------------------------------------------------===
600 dnl libelf is for sparc only; we can ignore it if we don't have it
601 AC_CHECK_LIB(elf, elf_begin)
603 if test "$llvm_cv_os_type" = "MingW" ; then
604 AC_CHECK_LIB(imagehlp, main)
605 AC_CHECK_LIB(psapi, main)
608 dnl lt_dlopen may be required for plugin support.
609 AC_SEARCH_LIBS(lt_dlopen,ltdl,AC_DEFINE([HAVE_LT_DLOPEN],[1],
610 [Define if lt_dlopen() is available on this platform]),
611 AC_MSG_WARN([lt_dlopen() not found - plugin support might
614 dnl dlopen() is required for plugin support.
615 AC_SEARCH_LIBS(dlopen,dl,AC_DEFINE([HAVE_DLOPEN],[1],
616 [Define if dlopen() is available on this platform.]),
617 AC_MSG_WARN([dlopen() not found - disabling plugin support]))
619 dnl mallinfo is optional; the code can compile (minus features) without it
620 AC_SEARCH_LIBS(mallinfo,malloc,AC_DEFINE([HAVE_MALLINFO],[1],
621 [Define if mallinfo() is available on this platform.]))
623 dnl pthread locking functions are optional - but llvm will not be thread-safe
625 if test "$ENABLE_THREADS" -eq 1 ; then
626 AC_CHECK_LIB(pthread,pthread_mutex_init)
627 AC_SEARCH_LIBS(pthread_mutex_lock,pthread,
628 AC_DEFINE([HAVE_PTHREAD_MUTEX_LOCK],[1],
629 [Have pthread_mutex_lock]))
632 dnl===-----------------------------------------------------------------------===
634 dnl=== SECTION 6: Check for header files
636 dnl===-----------------------------------------------------------------------===
638 dnl First, use autoconf provided macros for specific headers that we need
639 dnl We don't check for ancient stuff or things that are guaranteed to be there
640 dnl by the C++ standard. We always use the <cfoo> versions of <foo.h> C headers.
641 dnl Generally we're looking for POSIX headers.
643 AC_HEADER_MMAP_ANONYMOUS
649 AC_CHECK_HEADERS([dlfcn.h execinfo.h fcntl.h inttypes.h limits.h link.h])
650 AC_CHECK_HEADERS([malloc.h setjmp.h signal.h stdint.h unistd.h utime.h])
651 AC_CHECK_HEADERS([windows.h sys/mman.h sys/param.h sys/resource.h sys/time.h])
652 AC_CHECK_HEADERS([sys/types.h malloc/malloc.h mach/mach.h])
653 if test "$ENABLE_THREADS" -eq 1 ; then
654 AC_CHECK_HEADER(pthread.h,
655 AC_SUBST(HAVE_PTHREAD, 1),
656 AC_SUBST(HAVE_PTHREAD, 0))
658 AC_SUBST(HAVE_PTHREAD, 0)
661 dnl===-----------------------------------------------------------------------===
663 dnl=== SECTION 7: Check for types and structures
665 dnl===-----------------------------------------------------------------------===
672 AC_CHECK_TYPES([int64_t],,AC_MSG_ERROR([Type int64_t required but not found]))
673 AC_CHECK_TYPES([uint64_t],,
674 AC_CHECK_TYPES([u_int64_t],,
675 AC_MSG_ERROR([Type uint64_t or u_int64_t required but not found])))
677 dnl===-----------------------------------------------------------------------===
679 dnl=== SECTION 8: Check for specific functions needed
681 dnl===-----------------------------------------------------------------------===
683 AC_CHECK_FUNCS([backtrace ceilf floorf roundf rintf nearbyintf getcwd ])
684 AC_CHECK_FUNCS([getpagesize getrusage gettimeofday isatty mkdtemp mkstemp ])
685 AC_CHECK_FUNCS([mktemp realpath sbrk setrlimit strdup strerror strerror_r ])
686 AC_CHECK_FUNCS([strtoll strtoq sysconf malloc_zone_statistics ])
687 AC_CHECK_FUNCS([setjmp longjmp sigsetjmp siglongjmp])
692 dnl Check for variations in the Standard C++ library and STL. These macros are
693 dnl provided by LLVM in the autoconf/m4 directory.
696 AC_CXX_HAVE_STD_ITERATOR
697 AC_CXX_HAVE_BI_ITERATOR
698 AC_CXX_HAVE_FWD_ITERATOR
702 dnl Check for mmap and mprotect support. We need both to do the JIT and for
703 dnl bytecode loading, etc. We also need to know if /dev/zero is required to
704 dnl be opened for allocating RWX memory.
707 AC_NEED_DEV_ZERO_FOR_MMAP
708 AC_CHECK_FUNC(mprotect,,
709 AC_MSG_ERROR([Function mprotect() required but not found]))
711 if test "$ac_cv_func_mmap_fixed_mapped" = "no"
713 AC_MSG_WARN([mmap() of a fixed address required but not supported])
715 if test "$ac_cv_func_mmap_file" = "no"
717 AC_MSG_WARN([mmap() of files required but not found])
720 dnl===-----------------------------------------------------------------------===
722 dnl=== SECTION 9: Additional checks, variables, etc.
724 dnl===-----------------------------------------------------------------------===
726 dnl See if the llvm-gcc executable can compile to LLVM assembly
727 AC_CACHE_CHECK([whether llvm-gcc is sane],[llvm_cv_llvmgcc_sanity],
728 [llvm_cv_llvmgcc_sanity="no"
729 if test -x "$LLVMGCC" ; then
730 cp /dev/null conftest.c
731 "$LLVMGCC" -emit-llvm -S -o - conftest.c | grep implementation > /dev/null 2>&1
732 if test $? -eq 0 ; then
733 llvm_cv_llvmgcc_sanity="yes"
738 dnl Since we have a sane llvm-gcc, identify it and its sub-tools
739 if test "$llvm_cv_llvmgcc_sanity" = "yes" ; then
740 llvmcc1path=`"$LLVMGCC" --print-prog-name=cc1`
741 AC_SUBST(LLVMCC1,$llvmcc1path)
742 llvmcc1pluspath=`"$LLVMGCC" --print-prog-name=cc1plus`
743 AC_SUBST(LLVMCC1PLUS,$llvmcc1pluspath)
744 llvmgccdir=`echo "$llvmcc1path" | sed 's,/libexec/.*,,'`
745 AC_SUBST(LLVMGCCDIR,$llvmgccdir)
746 llvmgcclibexec=`echo "$llvmcc1path" | sed 's,/cc1,,'`
747 AC_SUBST(LLVMGCCLIBEXEC,$llvmgcclibexec)
748 llvmgccversion=[`"$LLVMGCC" -dumpversion 2>&1 | sed 's/^\([0-9.]*\).*/\1/'`]
749 llvmgccmajvers=[`echo $llvmgccversion | sed 's/^\([0-9]\).*/\1/'`]
750 AC_SUBST(LLVMGCC_VERSION,$llvmgccversion)
751 AC_SUBST(LLVMGCC_MAJVERS,$llvmgccmajvers)
754 dnl Propagate the shared library extension that the libltdl checks did to
755 dnl the Makefiles so we can use it there too
756 AC_SUBST(SHLIBEXT,$libltdl_cv_shlibext)
758 # Translate the various configuration directories and other basic
759 # information into substitutions that will end up in Makefile.config.in
760 # that these configured values can be used by the makefiles
761 if test "${prefix}" = "NONE" ; then
764 eval LLVM_PREFIX="${prefix}";
765 eval LLVM_BINDIR="${prefix}/bin";
766 eval LLVM_LIBDIR="${prefix}/lib";
767 eval LLVM_DATADIR="${prefix}/share/llvm";
768 eval LLVM_DOCSDIR="${prefix}/docs/llvm";
769 eval LLVM_ETCDIR="${prefix}/etc/llvm";
770 eval LLVM_INCLUDEDIR="${prefix}/include";
771 eval LLVM_INFODIR="${prefix}/info";
772 eval LLVM_MANDIR="${prefix}/man";
773 LLVM_CONFIGTIME=`date`
774 AC_SUBST(LLVM_PREFIX)
775 AC_SUBST(LLVM_BINDIR)
776 AC_SUBST(LLVM_LIBDIR)
777 AC_SUBST(LLVM_DATADIR)
778 AC_SUBST(LLVM_DOCSDIR)
779 AC_SUBST(LLVM_ETCDIR)
780 AC_SUBST(LLVM_INCLUDEDIR)
781 AC_SUBST(LLVM_INFODIR)
782 AC_SUBST(LLVM_MANDIR)
783 AC_SUBST(LLVM_CONFIGTIME)
785 # Place the various directores into the config.h file as #defines so that we
786 # can know about the installation paths within LLVM.
787 AC_DEFINE_UNQUOTED(LLVM_PREFIX,"$LLVM_PREFIX",
788 [Installation prefix directory])
789 AC_DEFINE_UNQUOTED(LLVM_BINDIR, "$LLVM_BINDIR",
790 [Installation directory for binary executables])
791 AC_DEFINE_UNQUOTED(LLVM_LIBDIR, "$LLVM_LIBDIR",
792 [Installation directory for libraries])
793 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DATADIR",
794 [Installation directory for data files])
795 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DOCSDIR",
796 [Installation directory for documentation])
797 AC_DEFINE_UNQUOTED(LLVM_ETCDIR, "$LLVM_ETCDIR",
798 [Installation directory for config files])
799 AC_DEFINE_UNQUOTED(LLVM_INCLUDEDIR, "$LLVM_INCLUDEDIR",
800 [Installation directory for include files])
801 AC_DEFINE_UNQUOTED(LLVM_INFODIR, "$LLVM_INFODIR",
802 [Installation directory for .info files])
803 AC_DEFINE_UNQUOTED(LLVM_MANDIR, "$LLVM_MANDIR",
804 [Installation directory for man pages])
805 AC_DEFINE_UNQUOTED(LLVM_CONFIGTIME, "$LLVM_CONFIGTIME",
806 [Time at which LLVM was configured])
808 dnl===-----------------------------------------------------------------------===
810 dnl=== SECTION 10: Specify the output files and generate it
812 dnl===-----------------------------------------------------------------------===
814 dnl Configure header files
815 dnl WARNING: dnl If you add or remove any of the following config headers, then
816 dnl you MUST also update Makefile.rules so that the variable FilesToConfig
817 dnl contains the same list of files as AC_CONFIG_HEADERS below. This ensures the
818 dnl files can be updated automatically when their *.in sources change.
819 AC_CONFIG_HEADERS([include/llvm/Config/config.h])
820 AC_CONFIG_HEADERS([include/llvm/Support/DataTypes.h])
821 AC_CONFIG_HEADERS([include/llvm/ADT/hash_map])
822 AC_CONFIG_HEADERS([include/llvm/ADT/hash_set])
823 AC_CONFIG_HEADERS([include/llvm/ADT/iterator])
825 dnl Configure the makefile's configuration data
826 AC_CONFIG_FILES([Makefile.config])
828 dnl Configure the RPM spec file for LLVM
829 AC_CONFIG_FILES([llvm.spec])
831 dnl Configure doxygen's configuration file
832 AC_CONFIG_FILES([docs/doxygen.cfg])
834 dnl Do the first stage of configuration for llvm-config.in.
835 AC_CONFIG_FILES([tools/llvm-config/llvm-config.in])
837 dnl Do special configuration of Makefiles
838 AC_CONFIG_COMMANDS([setup],,[llvm_src="${srcdir}"])
839 AC_CONFIG_MAKEFILE(Makefile)
840 AC_CONFIG_MAKEFILE(Makefile.common)
841 AC_CONFIG_MAKEFILE(examples/Makefile)
842 AC_CONFIG_MAKEFILE(lib/Makefile)
843 AC_CONFIG_MAKEFILE(runtime/Makefile)
844 AC_CONFIG_MAKEFILE(test/Makefile)
845 AC_CONFIG_MAKEFILE(test/Makefile.tests)
846 AC_CONFIG_MAKEFILE(tools/Makefile)
847 AC_CONFIG_MAKEFILE(utils/Makefile)
848 AC_CONFIG_MAKEFILE(projects/Makefile)
850 dnl Finally, crank out the output