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],$ENABLE_THREADS,[Define if threads enabled])
325 dnl Allow specific targets to be specified for building (or not)
327 AC_ARG_ENABLE([targets],AS_HELP_STRING([--enable-targets],
328 [Build specific host targets: all,host-only,{target-name} (default=all)]),,
331 all) TARGETS_TO_BUILD="X86 Sparc PowerPC Alpha IA64 ARM" ;;
333 case "$llvm_cv_target_arch" in
334 x86) TARGETS_TO_BUILD="X86" ;;
335 x86_64) TARGETS_TO_BUILD="X86" ;;
336 Sparc) TARGETS_TO_BUILD="Sparc" ;;
337 PowerPC) TARGETS_TO_BUILD="PowerPC" ;;
338 Alpha) TARGETS_TO_BUILD="Alpha" ;;
339 IA64) TARGETS_TO_BUILD="IA64" ;;
340 *) AC_MSG_ERROR([Can not set target to build]) ;;
343 *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
345 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
346 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
347 sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
348 powerpc) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
349 alpha) TARGETS_TO_BUILD="Alpha $TARGETS_TO_BUILD" ;;
350 ia64) TARGETS_TO_BUILD="IA64 $TARGETS_TO_BUILD" ;;
351 *) AC_MSG_ERROR([Unrecognized target $a_target]) ;;
356 TARGETS_TO_BUILD="CBackend $TARGETS_TO_BUILD"
357 AC_SUBST(TARGETS_TO_BUILD,$TARGETS_TO_BUILD)
359 dnl Prevent the CBackend from using printf("%a") for floating point so older
360 dnl C compilers that cannot deal with the 0x0p+0 hex floating point format
361 dnl can still compile the CBE's output
362 AC_ARG_ENABLE([cbe-printf-a],AS_HELP_STRING([--enable-cbe-printf-a],
363 [Enable C Backend output with hex floating point via %a (default is YES)]),,
366 yes) AC_SUBST(ENABLE_CBE_PRINTF_A,[1]) ;;
367 no) AC_SUBST(ENABLE_CBE_PRINTF_A,[0]) ;;
368 default) AC_SUBST(ENABLE_CBE_PRINTF_A,[1]) ;;
369 *) AC_MSG_ERROR([Invalid setting for --enable-cbe-printf-a. Use "yes" or "no"]) ;;
371 AC_DEFINE_UNQUOTED([ENABLE_CBE_PRINTF_A],$ENABLE_CBE_PRINTF_A,
372 [Define if CBE is enabled for printf %a output])
374 dnl Allow a specific llvm-gcc/llvm-g++ pair to be used with this LLVM config.
375 AC_ARG_WITH(llvmgccdir,
376 AS_HELP_STRING([--with-llvmgccdir],
377 [Specify location of llvm-gcc install dir (default searches PATH)]),,
380 default) WITH_LLVMGCCDIR=default ;;
381 /* | [[A-Za-z]]:[[\\/]]*) WITH_LLVMGCCDIR=$withval ;;
382 *) AC_MSG_ERROR([Invalid path for --with-llvmgccdir. Provide full path]) ;;
385 dnl Specify extra build options
386 AC_ARG_WITH(extra-options,
387 AS_HELP_STRING([--with-extra-options],
388 [Specify addtional options to compile LLVM with]),,
391 default) EXTRA_OPTIONS= ;;
392 *) EXTRA_OPTIONS=$withval ;;
394 AC_SUBST(EXTRA_OPTIONS,$EXTRA_OPTIONS)
396 dnl===-----------------------------------------------------------------------===
398 dnl=== SECTION 4: Check for programs we need and that they are the right version
400 dnl===-----------------------------------------------------------------------===
402 dnl Check for compilation tools
412 dnl Check for the tools that the makefiles require
415 AC_PATH_PROG(CMP, [cmp], [cmp])
416 AC_PATH_PROG(CP, [cp], [cp])
417 AC_PATH_PROG(DATE, [date], [date])
418 AC_PATH_PROG(FIND, [find], [find])
419 AC_PATH_PROG(GREP, [grep], [grep])
420 AC_PATH_PROG(MKDIR,[mkdir],[mkdir])
421 AC_PATH_PROG(MV, [mv], [mv])
423 AC_PATH_PROG(RM, [rm], [rm])
424 AC_PATH_PROG(SED, [sed], [sed])
425 AC_PATH_PROG(TAR, [tar], [gtar])
426 AC_PATH_PROG(BINPWD,[pwd], [pwd])
428 dnl Looking for misc. graph plotting software
429 AC_PATH_PROG(GRAPHVIZ, [Graphviz], [echo Graphviz])
430 if test "$GRAPHVIZ" != "echo Graphviz" ; then
431 AC_DEFINE([HAVE_GRAPHVIZ],[1],[Define if the Graphviz program is available])
432 dnl If we're targeting for mingw we should emit windows paths, not msys
433 if test "$llvm_cv_os_type" == "MingW" ; then
434 GRAPHVIZ=`echo $GRAPHVIZ | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
436 AC_DEFINE_UNQUOTED([LLVM_PATH_GRAPHVIZ],"$GRAPHVIZ${EXEEXT}",
437 [Define to path to Graphviz program if found or 'echo Graphviz' otherwise])
439 AC_PATH_PROG(DOT, [dot], [echo dot])
440 if test "$DOT" != "echo dot" ; then
441 AC_DEFINE([HAVE_DOT],[1],[Define if the dot program is available])
442 dnl If we're targeting for mingw we should emit windows paths, not msys
443 if test "$llvm_cv_os_type" == "MingW" ; then
444 DOT=`echo $DOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
446 AC_DEFINE_UNQUOTED([LLVM_PATH_DOT],"$DOT${EXEEXT}",
447 [Define to path to dot program if found or 'echo dot' otherwise])
449 AC_PATH_PROGS(GV, [gv gsview32], [echo gv])
450 if test "$GV" != "echo gv" ; then
451 AC_DEFINE([HAVE_GV],[1],[Define if the gv program is available])
452 dnl If we're targeting for mingw we should emit windows paths, not msys
453 if test "$llvm_cv_os_type" == "MingW" ; then
454 GV=`echo $GV | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
456 AC_DEFINE_UNQUOTED([LLVM_PATH_GV],"$GV${EXEEXT}",
457 [Define to path to gv program if found or 'echo gv' otherwise])
459 AC_PATH_PROG(DOTTY, [dotty], [echo dotty])
460 if test "$DOTTY" != "echo dotty" ; then
461 AC_DEFINE([HAVE_DOTTY],[1],[Define if the dotty program is available])
462 dnl If we're targeting for mingw we should emit windows paths, not msys
463 if test "$llvm_cv_os_type" == "MingW" ; then
464 DOTTY=`echo $DOTTY | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
466 AC_DEFINE_UNQUOTED([LLVM_PATH_DOTTY],"$DOTTY${EXEEXT}",
467 [Define to path to dotty program if found or 'echo dotty' otherwise])
470 dnl Look for a sufficiently recent version of Perl.
471 LLVM_PROG_PERL([5.006])
473 if test x"$PERL" = xnone; then
474 AC_SUBST(HAVE_PERL,0)
476 AC_SUBST(HAVE_PERL,1)
479 dnl Find the install program
482 dnl Checks for documentation and testing tools that we can do without. If these
483 dnl are not found then they are set to "true" which always succeeds but does
484 dnl nothing. This just lets the build output show that we could have done
485 dnl something if the tool was available.
486 AC_PATH_PROG(BZIP2,[bzip2],[echo "Skipped: bzip2 not found"])
487 AC_PATH_PROG(DOXYGEN,[doxygen],[echo "Skipped: doxygen not found"])
488 AC_PATH_PROG(GROFF,[groff],[echo "Skipped: groff not found"])
489 AC_PATH_PROG(GZIP,[gzip],[echo "Skipped: gzip not found"])
490 AC_PATH_PROG(POD2HTML,[pod2html],[echo "Skipped: pod2html not found"])
491 AC_PATH_PROG(POD2MAN,[pod2man],[echo "Skipped: pod2man not found"])
492 AC_PATH_PROG(RUNTEST,[runtest],[echo "Skipped: runtest not found"])
494 AC_PATH_PROG(ZIP,[zip],[echo "Skipped: zip not found"])
496 dnl Determine if the linker supports the -R option.
499 dnl Check for libtool and the library that has dlopen function (which must come
500 dnl before the AC_PROG_LIBTOOL check in order to enable dlopening libraries with
506 if test "$lt_cv_dlopen_self" = "yes" ; then
507 AC_DEFINE([CAN_DLOPEN_SELF],[1],
508 [Define if dlopen(0) will open the symbols of the program])
511 dnl Check if we know how to tell etags we are using C++:
512 etags_version=`$ETAGS --version 2>&1`
513 case "$etags_version" in
514 *[Ee]xuberant*) ETAGSFLAGS="--language-force=c++" ;;
515 *GNU\ Emacs*) ETAGSFLAGS="-l c++" ;;
518 AC_SUBST(ETAGSFLAGS,$ETAGSFLAGS)
520 if test "$WITH_LLVMGCCDIR" = "default" ; then
521 LLVMGCC="llvm-gcc${EXEEXT}"
522 LLVMGXX="llvm-g++${EXEEXT}"
523 AC_PATH_PROG(LLVMGCC, $LLVMGCC, [])
524 AC_PATH_PROG(LLVMGXX, $LLVMGXX, [])
526 LLVMGCC="$WITH_LLVMGCCDIR/bin/llvm-gcc${EXEEXT}"
527 LLVMGXX="$WITH_LLVMGCCDIR/bin/llvm-g++${EXEEXT}"
528 AC_SUBST(LLVMGCC,$LLVMGCC)
529 AC_SUBST(LLVMGXX,$LLVMGXX)
532 AC_MSG_CHECKING([tool compatibility])
534 dnl Ensure that compilation tools are GCC or a GNU compatible compiler such as
535 dnl ICC; we use GCC specific options in the makefiles so the compiler needs
536 dnl to support those options.
537 dnl "icc" emits gcc signatures
538 dnl "icc -no-gcc" emits no gcc signature BUT is still compatible
550 if test "$GCC" != "yes" && test "$ICC" != "yes"
552 AC_MSG_ERROR([gcc|icc required but not found])
555 dnl Ensure that compilation tools are GCC; we use GCC specific extensions
556 if test "$GXX" != "yes" && test "$IXX" != "yes"
558 AC_MSG_ERROR([g++|icc required but not found])
561 dnl Verify that GCC is version 3.0 or higher
562 if test "$GCC" = "yes"
564 gccmajor=`$CC --version | head -n 1 | sed 's/[[^0-9]]*\([[0-9.]]\).*/\1/'`
565 if test "$gccmajor" -lt "3"
567 AC_MSG_ERROR([gcc 3.x required, but you have a lower version])
571 dnl Check for GNU Make. We use its extensions, so don't build without it
572 if test -z "$llvm_cv_gnu_make_command"
574 AC_MSG_ERROR([GNU Make required but not found])
577 dnl Tool compatibility is okay if we make it here.
580 dnl===-----------------------------------------------------------------------===
582 dnl=== SECTION 5: Check for libraries
584 dnl===-----------------------------------------------------------------------===
586 dnl libelf is for sparc only; we can ignore it if we don't have it
587 AC_CHECK_LIB(elf, elf_begin)
589 if test "$llvm_cv_os_type" == "MingW" ; then
590 AC_CHECK_LIB(imagehlp, main)
591 AC_CHECK_LIB(psapi, main)
594 dnl lt_dlopen may be required for plugin support.
595 AC_SEARCH_LIBS(lt_dlopen,ltdl,AC_DEFINE([HAVE_LT_DLOPEN],[1],
596 [Define if lt_dlopen() is available on this platform]),
597 AC_MSG_WARN([lt_dlopen() not found - plugin support might
600 dnl dlopen() is required for plugin support.
601 AC_SEARCH_LIBS(dlopen,dl,AC_DEFINE([HAVE_DLOPEN],[1],
602 [Define if dlopen() is available on this platform.]),
603 AC_MSG_WARN([dlopen() not found - disabling plugin support]))
605 dnl mallinfo is optional; the code can compile (minus features) without it
606 AC_SEARCH_LIBS(mallinfo,malloc,AC_DEFINE([HAVE_MALLINFO],[1],
607 [Define if mallinfo() is available on this platform.]))
609 dnl pthread locking functions are optional - but llvm will not be thread-safe
611 if test "$ENABLE_THREADS" -eq 1 ; then
612 AC_CHECK_LIB(pthread,pthread_mutex_init)
613 AC_SEARCH_LIBS(pthread_mutex_lock,pthread,
614 AC_DEFINE([HAVE_PTHREAD_MUTEX_LOCK],[1],
615 [Have pthread_mutex_lock]))
618 dnl===-----------------------------------------------------------------------===
620 dnl=== SECTION 6: Check for header files
622 dnl===-----------------------------------------------------------------------===
624 dnl First, use autoconf provided macros for specific headers that we need
625 dnl We don't check for ancient stuff or things that are guaranteed to be there
626 dnl by the C++ standard. We always use the <cfoo> versions of <foo.h> C headers.
627 dnl Generally we're looking for POSIX headers.
629 AC_HEADER_MMAP_ANONYMOUS
635 AC_CHECK_HEADERS([dlfcn.h execinfo.h fcntl.h inttypes.h limits.h link.h])
636 AC_CHECK_HEADERS([malloc.h setjmp.h signal.h stdint.h unistd.h utime.h])
637 AC_CHECK_HEADERS([windows.h sys/mman.h sys/param.h sys/resource.h sys/time.h])
638 AC_CHECK_HEADERS([sys/types.h malloc/malloc.h mach/mach.h])
639 if test "$ENABLE_THREADS" -eq 1 ; then
640 AC_CHECK_HEADER(pthread.h,
641 AC_SUBST(HAVE_PTHREAD, 1),
642 AC_SUBST(HAVE_PTHREAD, 0))
644 AC_SUBST(HAVE_PTHREAD, 0)
647 dnl===-----------------------------------------------------------------------===
649 dnl=== SECTION 7: Check for types and structures
651 dnl===-----------------------------------------------------------------------===
658 AC_CHECK_TYPES([int64_t],,AC_MSG_ERROR([Type int64_t required but not found]))
659 AC_CHECK_TYPES([uint64_t],,
660 AC_CHECK_TYPES([u_int64_t],,
661 AC_MSG_ERROR([Type uint64_t or u_int64_t required but not found])))
663 dnl===-----------------------------------------------------------------------===
665 dnl=== SECTION 8: Check for specific functions needed
667 dnl===-----------------------------------------------------------------------===
669 AC_CHECK_FUNCS([backtrace ceilf floorf roundf rintf nearbyintf getcwd ])
670 AC_CHECK_FUNCS([getpagesize getrusage gettimeofday isatty mkdtemp mkstemp ])
671 AC_CHECK_FUNCS([mktemp realpath sbrk setrlimit strdup strerror strerror_r ])
672 AC_CHECK_FUNCS([strtoll strtoq sysconf malloc_zone_statistics ])
673 AC_CHECK_FUNCS([_setjmp _longjmp setjmp longjmp sigsetjmp siglongjmp])
678 dnl Check for variations in the Standard C++ library and STL. These macros are
679 dnl provided by LLVM in the autoconf/m4 directory.
682 AC_CXX_HAVE_STD_ITERATOR
683 AC_CXX_HAVE_BI_ITERATOR
684 AC_CXX_HAVE_FWD_ITERATOR
688 dnl Check for mmap and mprotect support. We need both to do the JIT and for
689 dnl bytecode loading, etc. We also need to know if /dev/zero is required to
690 dnl be opened for allocating RWX memory.
693 AC_NEED_DEV_ZERO_FOR_MMAP
694 AC_CHECK_FUNC(mprotect,,
695 AC_MSG_ERROR([Function mprotect() required but not found]))
697 if test "$ac_cv_func_mmap_fixed_mapped" = "no"
699 AC_MSG_WARN([mmap() of a fixed address required but not supported])
701 if test "$ac_cv_func_mmap_file" = "no"
703 AC_MSG_WARN([mmap() of files required but not found])
706 dnl===-----------------------------------------------------------------------===
708 dnl=== SECTION 9: Additional checks, variables, etc.
710 dnl===-----------------------------------------------------------------------===
712 dnl See if the llvm-gcc executable can compile to LLVM assembly
713 AC_CACHE_CHECK([whether llvm-gcc is sane],[llvm_cv_llvmgcc_sanity],
714 [llvm_cv_llvmgcc_sanity="no"
715 if test -x "$LLVMGCC" ; then
716 cp /dev/null conftest.c
717 "$LLVMGCC" -emit-llvm -S -o - conftest.c | grep implementation > /dev/null 2>&1
718 if test $? -eq 0 ; then
719 llvm_cv_llvmgcc_sanity="yes"
724 dnl Since we have a sane llvm-gcc, identify it and its sub-tools
725 if test "$llvm_cv_llvmgcc_sanity" = "yes" ; then
726 llvmcc1path=`"$LLVMGCC" --print-prog-name=cc1`
727 AC_SUBST(LLVMCC1,$llvmcc1path)
728 llvmcc1pluspath=`"$LLVMGCC" --print-prog-name=cc1plus`
729 AC_SUBST(LLVMCC1PLUS,$llvmcc1pluspath)
730 llvmgccdir=`echo "$llvmcc1path" | sed 's,/libexec/.*,,'`
731 AC_SUBST(LLVMGCCDIR,$llvmgccdir)
732 llvmgccversion=[`"$LLVMGCC" -dumpversion 2>&1 | sed 's/^\([0-9.]*\).*/\1/'`]
733 llvmgccmajvers=[`echo $llvmgccversion | sed 's/^\([0-9]\).*/\1/'`]
734 AC_SUBST(LLVMGCC_VERSION,$llvmgccversion)
735 AC_SUBST(LLVMGCC_MAJVERS,$llvmgccmajvers)
738 dnl Propagate the shared library extension that the libltdl checks did to
739 dnl the Makefiles so we can use it there too
740 AC_SUBST(SHLIBEXT,$libltdl_cv_shlibext)
742 # Translate the various configuration directories and other basic
743 # information into substitutions that will end up in Makefile.config.in
744 # that these configured values can be used by the makefiles
745 if test "${prefix}" == "NONE" ; then
748 eval LLVM_PREFIX="${prefix}";
749 eval LLVM_BINDIR="${prefix}/bin";
750 eval LLVM_LIBDIR="${prefix}/lib";
751 eval LLVM_DATADIR="${prefix}/share/llvm";
752 eval LLVM_DOCSDIR="${prefix}/docs/llvm";
753 eval LLVM_ETCDIR="${prefix}/etc/llvm";
754 eval LLVM_INCLUDEDIR="${prefix}/include";
755 eval LLVM_INFODIR="${prefix}/info";
756 eval LLVM_MANDIR="${prefix}/man";
757 LLVM_CONFIGTIME=`date`
758 AC_SUBST(LLVM_PREFIX)
759 AC_SUBST(LLVM_BINDIR)
760 AC_SUBST(LLVM_LIBDIR)
761 AC_SUBST(LLVM_DATADIR)
762 AC_SUBST(LLVM_DOCSDIR)
763 AC_SUBST(LLVM_ETCDIR)
764 AC_SUBST(LLVM_INCLUDEDIR)
765 AC_SUBST(LLVM_INFODIR)
766 AC_SUBST(LLVM_MANDIR)
767 AC_SUBST(LLVM_CONFIGTIME)
769 # Place the various directores into the config.h file as #defines so that we
770 # can know about the installation paths within LLVM.
771 AC_DEFINE_UNQUOTED(LLVM_PREFIX,"$LLVM_PREFIX",
772 [Installation prefix directory])
773 AC_DEFINE_UNQUOTED(LLVM_BINDIR, "$LLVM_BINDIR",
774 [Installation directory for binary executables])
775 AC_DEFINE_UNQUOTED(LLVM_LIBDIR, "$LLVM_LIBDIR",
776 [Installation directory for libraries])
777 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DATADIR",
778 [Installation directory for data files])
779 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DOCSDIR",
780 [Installation directory for documentation])
781 AC_DEFINE_UNQUOTED(LLVM_ETCDIR, "$LLVM_ETCDIR",
782 [Installation directory for config files])
783 AC_DEFINE_UNQUOTED(LLVM_INCLUDEDIR, "$LLVM_INCLUDEDIR",
784 [Installation directory for include files])
785 AC_DEFINE_UNQUOTED(LLVM_INFODIR, "$LLVM_INFODIR",
786 [Installation directory for .info files])
787 AC_DEFINE_UNQUOTED(LLVM_MANDIR, "$LLVM_MANDIR",
788 [Installation directory for man pages])
789 AC_DEFINE_UNQUOTED(LLVM_CONFIGTIME, "$LLVM_CONFIGTIME",
790 [Time at which LLVM was configured])
792 dnl===-----------------------------------------------------------------------===
794 dnl=== SECTION 10: Specify the output files and generate it
796 dnl===-----------------------------------------------------------------------===
798 dnl Configure header files
799 dnl WARNING: dnl If you add or remove any of the following config headers, then
800 dnl you MUST also update Makefile.rules so that the variable FilesToConfig
801 dnl contains the same list of files as AC_CONFIG_HEADERS below. This ensures the
802 dnl files can be updated automatically when their *.in sources change.
803 AC_CONFIG_HEADERS([include/llvm/Config/config.h])
804 AC_CONFIG_HEADERS([include/llvm/Support/DataTypes.h])
805 AC_CONFIG_HEADERS([include/llvm/ADT/hash_map])
806 AC_CONFIG_HEADERS([include/llvm/ADT/hash_set])
807 AC_CONFIG_HEADERS([include/llvm/ADT/iterator])
809 dnl Configure the makefile's configuration data
810 AC_CONFIG_FILES([Makefile.config])
812 dnl Configure the RPM spec file for LLVM
813 AC_CONFIG_FILES([llvm.spec])
815 dnl Configure doxygen's configuration file
816 AC_CONFIG_FILES([docs/doxygen.cfg])
818 dnl Do the first stage of configuration for llvm-config.in.
819 AC_CONFIG_FILES([tools/llvm-config/llvm-config.in])
821 dnl Do special configuration of Makefiles
822 AC_CONFIG_COMMANDS([setup],,[llvm_src="${srcdir}"])
823 AC_CONFIG_MAKEFILE(Makefile)
824 AC_CONFIG_MAKEFILE(Makefile.common)
825 AC_CONFIG_MAKEFILE(examples/Makefile)
826 AC_CONFIG_MAKEFILE(lib/Makefile)
827 AC_CONFIG_MAKEFILE(runtime/Makefile)
828 AC_CONFIG_MAKEFILE(test/Makefile)
829 AC_CONFIG_MAKEFILE(test/Makefile.tests)
830 AC_CONFIG_MAKEFILE(tools/Makefile)
831 AC_CONFIG_MAKEFILE(utils/Makefile)
832 AC_CONFIG_MAKEFILE(projects/Makefile)
834 dnl Finally, crank out the output
837 dnl Warn loudly if llvm-gcc was not obviously working
838 if test "$llvm_cv_llvmgcc_sanity" = "no" ; then
839 AC_MSG_WARN([***** llvm-gcc/llvm-g++ was not found, or does not appear to be ])
840 AC_MSG_WARN([***** working. Please make sure you have llvm-gcc and llvm-g++ in])
841 AC_MSG_WARN([***** your path before configuring LLVM. The runtime libraries])
842 AC_MSG_WARN([***** (llvm/runtime) will not be built but you should be able to])
843 AC_MSG_WARN([***** build the llvm tools.])