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]],[[2.1cvs]],[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) 2003-2007 University of Illinois at Urbana-Champaign."])
39 AC_COPYRIGHT([Copyright (c) 2003-2007 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 privbracket) AC_CONFIG_SUBDIRS([projects/privbracket]) ;;
72 llvm-stacker) AC_CONFIG_SUBDIRS([projects/llvm-stacker]) ;;
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="NetBSD"
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="HP-UX"
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="Interix"
148 llvm_cv_platform_type="Unix" ;;
150 llvm_cv_link_all_option="-Wl,--whole-archive"
151 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
152 llvm_cv_os_type="Linux"
153 llvm_cv_platform_type="Unix" ;;
155 llvm_cv_link_all_option="-Wl,-z,allextract"
156 llvm_cv_no_link_all_option="-Wl,-z,defaultextract"
157 llvm_cv_os_type="SunOS"
158 llvm_cv_platform_type="Unix" ;;
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="Win32"
163 llvm_cv_platform_type="Win32" ;;
165 llvm_cv_link_all_option="-Wl,--whole-archive"
166 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
167 llvm_cv_os_type="MingW"
168 llvm_cv_platform_type="Win32" ;;
170 llvm_cv_link_all_option=""
171 llvm_cv_no_link_all_option=""
172 llvm_cv_os_type="Unknown"
173 llvm_cv_platform_type="Unknown" ;;
176 dnl Make sure we aren't attempting to configure for an unknown system
177 if test "$llvm_cv_os_type" = "Unknown" ; then
178 AC_MSG_ERROR([Operating system is unknown, configure can't continue])
181 dnl Set the "OS" Makefile variable based on the platform type so the
182 dnl makefile can configure itself to specific build hosts
183 AC_SUBST(OS,$llvm_cv_os_type)
185 dnl Set the LINKALL and NOLINKALL Makefile variables based on the platform
186 AC_SUBST(LINKALL,$llvm_cv_link_all_option)
187 AC_SUBST(NOLINKALL,$llvm_cv_no_link_all_option)
189 dnl Set the "LLVM_ON_*" variables based on llvm_cvs_platform_type
190 dnl This is used by lib/System to determine the basic kind of implementation
192 case $llvm_cv_platform_type in
194 AC_DEFINE([LLVM_ON_UNIX],[1],[Define if this is Unixish platform])
195 AC_SUBST(LLVM_ON_UNIX,[1])
196 AC_SUBST(LLVM_ON_WIN32,[0])
199 AC_DEFINE([LLVM_ON_WIN32],[1],[Define if this is Win32ish platform])
200 AC_SUBST(LLVM_ON_UNIX,[0])
201 AC_SUBST(LLVM_ON_WIN32,[1])
205 dnl Determine what our target architecture is and configure accordingly.
206 dnl This will allow Makefiles to make a distinction between the hardware and
208 AC_CACHE_CHECK([target architecture],[llvm_cv_target_arch],
210 i?86-*) llvm_cv_target_arch="x86" ;;
211 amd64-* | x86_64-*) llvm_cv_target_arch="x86_64" ;;
212 sparc*-*) llvm_cv_target_arch="Sparc" ;;
213 powerpc*-*) llvm_cv_target_arch="PowerPC" ;;
214 alpha*-*) llvm_cv_target_arch="Alpha" ;;
215 ia64-*) llvm_cv_target_arch="IA64" ;;
216 arm-*) llvm_cv_target_arch="ARM" ;;
217 *) llvm_cv_target_arch="Unknown" ;;
220 if test "$llvm_cv_target_arch" = "Unknown" ; then
221 AC_MSG_WARN([Configuring LLVM for an unknown target archicture])
224 dnl Define a substitution, ARCH, for the target architecture
225 AC_SUBST(ARCH,$llvm_cv_target_arch)
227 dnl Check for the endianness of the target
228 AC_C_BIGENDIAN(AC_SUBST([ENDIAN],[big]),AC_SUBST([ENDIAN],[little]))
230 dnl Check for build platform executable suffix if we're crosscompiling
231 if test "$cross_compiling" = yes; then
232 AC_SUBST(LLVM_CROSS_COMPILING, [1])
235 AC_SUBST(LLVM_CROSS_COMPILING, [0])
238 dnl Check to see if there's a "CVS" (or .svn) directory indicating that this
239 dnl build is being done from a checkout. This sets up several defaults for the
240 dnl command line switches. When we build with a CVS directory, we get a
241 dnl debug with assertions turned on. Without, we assume a source release and we
242 dnl get an optimized build without assertions. See --enable-optimized and
243 dnl --enable-assertions below
244 if test -d "CVS" -o -d "${srcdir}/CVS" -o -d ".svn" -o -d "${srcdir}/.svn"; then
247 AC_SUBST(CVSBUILD,[[CVSBUILD=1]])
253 dnl===-----------------------------------------------------------------------===
255 dnl=== SECTION 3: Command line arguments for the configure script.
257 dnl===-----------------------------------------------------------------------===
259 dnl --enable-optimized : check whether they want to do an optimized build:
260 AC_ARG_ENABLE(optimized, AS_HELP_STRING(
261 [--enable-optimized,Compile with optimizations enabled (default is NO)]),,enableval=$optimize)
262 if test ${enableval} = "no" ; then
263 AC_SUBST(ENABLE_OPTIMIZED,[[]])
265 AC_SUBST(ENABLE_OPTIMIZED,[[ENABLE_OPTIMIZED=1]])
268 dnl --enable-assertions : check whether they want to turn on assertions or not:
269 AC_ARG_ENABLE(assertions,AS_HELP_STRING(
270 [--enable-assertions,Compile with assertion checks enabled (default is YES)]),, enableval="yes")
271 if test ${enableval} = "yes" ; then
272 AC_SUBST(DISABLE_ASSERTIONS,[[]])
274 AC_SUBST(DISABLE_ASSERTIONS,[[DISABLE_ASSERTIONS=1]])
277 dnl --enable-debug-runtime : should runtime libraries have debug symbols?
278 AC_ARG_ENABLE(debug-runtime,
279 AS_HELP_STRING([--enable-debug-runtime,Build runtime libs with debug symbols (default is NO)]),,enableval=no)
280 if test ${enableval} = "no" ; then
281 AC_SUBST(DEBUG_RUNTIME,[[]])
283 AC_SUBST(DEBUG_RUNTIME,[[DEBUG_RUNTIME=1]])
286 dnl --enable-jit: check whether they want to enable the jit
288 AS_HELP_STRING(--enable-jit,
289 [Enable Just In Time Compiling (default is YES)]),,
291 if test ${enableval} = "no"
295 case "$llvm_cv_target_arch" in
296 x86) AC_SUBST(TARGET_HAS_JIT,1) ;;
297 Sparc) AC_SUBST(TARGET_HAS_JIT,0) ;;
298 PowerPC) AC_SUBST(TARGET_HAS_JIT,1) ;;
299 x86_64) AC_SUBST(TARGET_HAS_JIT,1) ;;
300 Alpha) AC_SUBST(TARGET_HAS_JIT,1) ;;
301 IA64) AC_SUBST(TARGET_HAS_JIT,0) ;;
302 ARM) AC_SUBST(TARGET_HAS_JIT,0) ;;
303 *) AC_SUBST(TARGET_HAS_JIT,0) ;;
307 dnl Allow enablement of doxygen generated documentation
308 AC_ARG_ENABLE(doxygen,
309 AS_HELP_STRING([--enable-doxygen],
310 [Build doxygen documentation (default is NO)]),,
313 yes) AC_SUBST(ENABLE_DOXYGEN,[1]) ;;
314 no) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
315 default) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
316 *) AC_MSG_ERROR([Invalid setting for --enable-doxygen. Use "yes" or "no"]) ;;
319 dnl Allow disablement of threads
320 AC_ARG_ENABLE(threads,
321 AS_HELP_STRING([--enable-threads],
322 [Use threads if available (default is YES)]),,
325 yes) AC_SUBST(ENABLE_THREADS,[1]) ;;
326 no) AC_SUBST(ENABLE_THREADS,[0]) ;;
327 default) AC_SUBST(ENABLE_THREADS,[1]) ;;
328 *) AC_MSG_ERROR([Invalid setting for --enable-threads. Use "yes" or "no"]) ;;
330 AC_DEFINE_UNQUOTED([ENABLE_THREADS],$ENABLE_THREADS,[Define if threads enabled])
332 dnl Allow building with position independent code
334 AS_HELP_STRING([--enable-pic],
335 [Build LLVM with Position Independent Code (default is NO)]),,
338 yes) AC_SUBST(ENABLE_PIC,[1]) ;;
339 no) AC_SUBST(ENABLE_PIC,[0]) ;;
340 default) AC_SUBST(ENABLE_PIC,[0]) ;;
341 *) AC_MSG_ERROR([Invalid setting for --enable-pic. Use "yes" or "no"]) ;;
343 AC_DEFINE_UNQUOTED([ENABLE_PIC],$ENABLE_PIC,
344 [Define if position independent code is enabled])
346 dnl Allow specific targets to be specified for building (or not)
348 AC_ARG_ENABLE([targets],AS_HELP_STRING([--enable-targets],
349 [Build specific host targets: all,host-only,{target-name} (default=all)]),,
352 all) TARGETS_TO_BUILD="X86 Sparc PowerPC Alpha IA64 ARM" ;;
354 case "$llvm_cv_target_arch" in
355 x86) TARGETS_TO_BUILD="X86" ;;
356 x86_64) TARGETS_TO_BUILD="X86" ;;
357 Sparc) TARGETS_TO_BUILD="Sparc" ;;
358 PowerPC) TARGETS_TO_BUILD="PowerPC" ;;
359 Alpha) TARGETS_TO_BUILD="Alpha" ;;
360 IA64) TARGETS_TO_BUILD="IA64" ;;
361 ARM) TARGETS_TO_BUILD="ARM" ;;
362 *) AC_MSG_ERROR([Can not set target to build]) ;;
365 *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
367 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
368 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
369 sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
370 powerpc) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
371 alpha) TARGETS_TO_BUILD="Alpha $TARGETS_TO_BUILD" ;;
372 ia64) TARGETS_TO_BUILD="IA64 $TARGETS_TO_BUILD" ;;
373 arm) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
374 *) AC_MSG_ERROR([Unrecognized target $a_target]) ;;
379 TARGETS_TO_BUILD="CBackend MSIL $TARGETS_TO_BUILD"
380 AC_SUBST(TARGETS_TO_BUILD,$TARGETS_TO_BUILD)
382 dnl Prevent the CBackend from using printf("%a") for floating point so older
383 dnl C compilers that cannot deal with the 0x0p+0 hex floating point format
384 dnl can still compile the CBE's output
385 AC_ARG_ENABLE([cbe-printf-a],AS_HELP_STRING([--enable-cbe-printf-a],
386 [Enable C Backend output with hex floating point via %a (default is YES)]),,
389 yes) AC_SUBST(ENABLE_CBE_PRINTF_A,[1]) ;;
390 no) AC_SUBST(ENABLE_CBE_PRINTF_A,[0]) ;;
391 default) AC_SUBST(ENABLE_CBE_PRINTF_A,[1]) ;;
392 *) AC_MSG_ERROR([Invalid setting for --enable-cbe-printf-a. Use "yes" or "no"]) ;;
394 AC_DEFINE_UNQUOTED([ENABLE_CBE_PRINTF_A],$ENABLE_CBE_PRINTF_A,
395 [Define if CBE is enabled for printf %a output])
397 dnl Allow a specific llvm-gcc/llvm-g++ pair to be used with this LLVM config.
398 AC_ARG_WITH(llvmgccdir,
399 AS_HELP_STRING([--with-llvmgccdir],
400 [Specify location of llvm-gcc install dir (default searches PATH)]),,
403 default) WITH_LLVMGCCDIR=default ;;
404 /* | [[A-Za-z]]:[[\\/]]*) WITH_LLVMGCCDIR=$withval ;;
405 *) AC_MSG_ERROR([Invalid path for --with-llvmgccdir. Provide full path]) ;;
408 dnl Specify extra build options
409 AC_ARG_WITH(extra-options,
410 AS_HELP_STRING([--with-extra-options],
411 [Specify addtional options to compile LLVM with]),,
414 default) EXTRA_OPTIONS= ;;
415 *) EXTRA_OPTIONS=$withval ;;
417 AC_SUBST(EXTRA_OPTIONS,$EXTRA_OPTIONS)
419 dnl===-----------------------------------------------------------------------===
421 dnl=== SECTION 4: Check for programs we need and that they are the right version
423 dnl===-----------------------------------------------------------------------===
425 dnl Check for compilation tools
435 dnl Check for the tools that the makefiles require
438 AC_PATH_PROG(CMP, [cmp], [cmp])
439 AC_PATH_PROG(CP, [cp], [cp])
440 AC_PATH_PROG(DATE, [date], [date])
441 AC_PATH_PROG(FIND, [find], [find])
442 AC_PATH_PROG(GREP, [grep], [grep])
443 AC_PATH_PROG(MKDIR,[mkdir],[mkdir])
444 AC_PATH_PROG(MV, [mv], [mv])
446 AC_PATH_PROG(RM, [rm], [rm])
447 AC_PATH_PROG(SED, [sed], [sed])
448 AC_PATH_PROG(TAR, [tar], [gtar])
449 AC_PATH_PROG(BINPWD,[pwd], [pwd])
451 dnl Looking for misc. graph plotting software
452 AC_PATH_PROG(GRAPHVIZ, [Graphviz], [echo Graphviz])
453 if test "$GRAPHVIZ" != "echo Graphviz" ; then
454 AC_DEFINE([HAVE_GRAPHVIZ],[1],[Define if the Graphviz program is available])
455 dnl If we're targeting for mingw we should emit windows paths, not msys
456 if test "$llvm_cv_os_type" = "MingW" ; then
457 GRAPHVIZ=`echo $GRAPHVIZ | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
459 AC_DEFINE_UNQUOTED([LLVM_PATH_GRAPHVIZ],"$GRAPHVIZ${EXEEXT}",
460 [Define to path to Graphviz program if found or 'echo Graphviz' otherwise])
462 AC_PATH_PROG(DOT, [dot], [echo dot])
463 if test "$DOT" != "echo dot" ; then
464 AC_DEFINE([HAVE_DOT],[1],[Define if the dot program is available])
465 dnl If we're targeting for mingw we should emit windows paths, not msys
466 if test "$llvm_cv_os_type" = "MingW" ; then
467 DOT=`echo $DOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
469 AC_DEFINE_UNQUOTED([LLVM_PATH_DOT],"$DOT${EXEEXT}",
470 [Define to path to dot program if found or 'echo dot' otherwise])
472 AC_PATH_PROGS(GV, [gv gsview32], [echo gv])
473 if test "$GV" != "echo gv" ; then
474 AC_DEFINE([HAVE_GV],[1],[Define if the gv program is available])
475 dnl If we're targeting for mingw we should emit windows paths, not msys
476 if test "$llvm_cv_os_type" = "MingW" ; then
477 GV=`echo $GV | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
479 AC_DEFINE_UNQUOTED([LLVM_PATH_GV],"$GV${EXEEXT}",
480 [Define to path to gv program if found or 'echo gv' otherwise])
482 AC_PATH_PROG(DOTTY, [dotty], [echo dotty])
483 if test "$DOTTY" != "echo dotty" ; then
484 AC_DEFINE([HAVE_DOTTY],[1],[Define if the dotty program is available])
485 dnl If we're targeting for mingw we should emit windows paths, not msys
486 if test "$llvm_cv_os_type" = "MingW" ; then
487 DOTTY=`echo $DOTTY | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
489 AC_DEFINE_UNQUOTED([LLVM_PATH_DOTTY],"$DOTTY${EXEEXT}",
490 [Define to path to dotty program if found or 'echo dotty' otherwise])
493 dnl Look for a sufficiently recent version of Perl.
494 LLVM_PROG_PERL([5.006])
496 if test x"$PERL" = xnone; then
497 AC_SUBST(HAVE_PERL,0)
498 AC_MSG_ERROR([perl is required but was not found, please install it])
500 AC_SUBST(HAVE_PERL,1)
503 dnl Find the install program
506 dnl Checks for documentation and testing tools that we can do without. If these
507 dnl are not found then they are set to "true" which always succeeds but does
508 dnl nothing. This just lets the build output show that we could have done
509 dnl something if the tool was available.
510 AC_PATH_PROG(BZIP2,[bzip2],[echo "Skipped: bzip2 not found"])
511 AC_PATH_PROG(DOXYGEN,[doxygen],[echo "Skipped: doxygen not found"])
512 AC_PATH_PROG(GROFF,[groff],[echo "Skipped: groff not found"])
513 AC_PATH_PROG(GZIP,[gzip],[echo "Skipped: gzip not found"])
514 AC_PATH_PROG(POD2HTML,[pod2html],[echo "Skipped: pod2html not found"])
515 AC_PATH_PROG(POD2MAN,[pod2man],[echo "Skipped: pod2man not found"])
516 AC_PATH_PROG(RUNTEST,[runtest],[echo "Skipped: runtest not found"])
518 AC_PATH_PROG(ZIP,[zip],[echo "Skipped: zip not found"])
520 dnl Determine if the linker supports the -R option.
523 dnl Check for libtool and the library that has dlopen function (which must come
524 dnl before the AC_PROG_LIBTOOL check in order to enable dlopening libraries with
530 if test "$lt_cv_dlopen_self" = "yes" ; then
531 AC_DEFINE([CAN_DLOPEN_SELF],[1],
532 [Define if dlopen(0) will open the symbols of the program])
535 dnl Check if we know how to tell etags we are using C++:
536 etags_version=`$ETAGS --version 2>&1`
537 case "$etags_version" in
538 *[Ee]xuberant*) ETAGSFLAGS="--language-force=c++" ;;
539 *GNU\ Emacs*) ETAGSFLAGS="-l c++" ;;
542 AC_SUBST(ETAGSFLAGS,$ETAGSFLAGS)
544 if test "$WITH_LLVMGCCDIR" = "default" ; then
545 LLVMGCC="llvm-gcc${EXEEXT}"
546 LLVMGXX="llvm-g++${EXEEXT}"
547 AC_PATH_PROG(LLVMGCC, $LLVMGCC, [])
548 AC_PATH_PROG(LLVMGXX, $LLVMGXX, [])
550 LLVMGCC="$WITH_LLVMGCCDIR/bin/llvm-gcc${EXEEXT}"
551 LLVMGXX="$WITH_LLVMGCCDIR/bin/llvm-g++${EXEEXT}"
552 AC_SUBST(LLVMGCC,$LLVMGCC)
553 AC_SUBST(LLVMGXX,$LLVMGXX)
556 AC_MSG_CHECKING([tool compatibility])
558 dnl Ensure that compilation tools are GCC or a GNU compatible compiler such as
559 dnl ICC; we use GCC specific options in the makefiles so the compiler needs
560 dnl to support those options.
561 dnl "icc" emits gcc signatures
562 dnl "icc -no-gcc" emits no gcc signature BUT is still compatible
574 if test "$GCC" != "yes" && test "$ICC" != "yes"
576 AC_MSG_ERROR([gcc|icc required but not found])
579 dnl Ensure that compilation tools are GCC; we use GCC specific extensions
580 if test "$GXX" != "yes" && test "$IXX" != "yes"
582 AC_MSG_ERROR([g++|icc required but not found])
585 dnl Verify that GCC is version 3.0 or higher
586 if test "$GCC" = "yes"
588 gccmajor=`$CC --version | head -n 1 | sed 's/[[^0-9]]*\([[0-9.]]\).*/\1/'`
589 if test "$gccmajor" -lt "3"
591 AC_MSG_ERROR([gcc 3.x required, but you have a lower version])
595 dnl Check for GNU Make. We use its extensions, so don't build without it
596 if test -z "$llvm_cv_gnu_make_command"
598 AC_MSG_ERROR([GNU Make required but not found])
601 dnl Tool compatibility is okay if we make it here.
604 dnl===-----------------------------------------------------------------------===
606 dnl=== SECTION 5: Check for libraries
608 dnl===-----------------------------------------------------------------------===
610 dnl libelf is for sparc only; we can ignore it if we don't have it
611 AC_CHECK_LIB(elf, elf_begin)
613 if test "$llvm_cv_os_type" = "MingW" ; then
614 AC_CHECK_LIB(imagehlp, main)
615 AC_CHECK_LIB(psapi, main)
618 dnl lt_dlopen may be required for plugin support.
619 AC_SEARCH_LIBS(lt_dlopen,ltdl,AC_DEFINE([HAVE_LT_DLOPEN],[1],
620 [Define if lt_dlopen() is available on this platform]),
621 AC_MSG_WARN([lt_dlopen() not found - plugin support might
624 dnl dlopen() is required for plugin support.
625 AC_SEARCH_LIBS(dlopen,dl,AC_DEFINE([HAVE_DLOPEN],[1],
626 [Define if dlopen() is available on this platform.]),
627 AC_MSG_WARN([dlopen() not found - disabling plugin support]))
629 dnl mallinfo is optional; the code can compile (minus features) without it
630 AC_SEARCH_LIBS(mallinfo,malloc,AC_DEFINE([HAVE_MALLINFO],[1],
631 [Define if mallinfo() is available on this platform.]))
633 dnl pthread locking functions are optional - but llvm will not be thread-safe
635 if test "$ENABLE_THREADS" -eq 1 ; then
636 AC_CHECK_LIB(pthread,pthread_mutex_init)
637 AC_SEARCH_LIBS(pthread_mutex_lock,pthread,
638 AC_DEFINE([HAVE_PTHREAD_MUTEX_LOCK],[1],
639 [Have pthread_mutex_lock]))
642 dnl Allow extra x86-disassembler library
644 AS_HELP_STRING([--with-udis86=<path>],
645 [Use udis86 external x86 disassembler library]),
647 AC_SUBST(USE_UDIS86, [1])
650 *) LDFLAGS="$LDFLAGS -L${withval}" ;;
652 AC_CHECK_LIB(udis86, ud_init, [], [
653 echo "Error! You need to have libudis86 around."
657 AC_SUBST(USE_UDIS86, [0]))
658 AC_DEFINE_UNQUOTED([USE_UDIS86],$USE_UDIS86,
659 [Define if use udis86 library])
661 dnl===-----------------------------------------------------------------------===
663 dnl=== SECTION 6: Check for header files
665 dnl===-----------------------------------------------------------------------===
667 dnl First, use autoconf provided macros for specific headers that we need
668 dnl We don't check for ancient stuff or things that are guaranteed to be there
669 dnl by the C++ standard. We always use the <cfoo> versions of <foo.h> C headers.
670 dnl Generally we're looking for POSIX headers.
672 AC_HEADER_MMAP_ANONYMOUS
678 AC_CHECK_HEADERS([dlfcn.h execinfo.h fcntl.h inttypes.h limits.h link.h])
679 AC_CHECK_HEADERS([malloc.h setjmp.h signal.h stdint.h unistd.h utime.h])
680 AC_CHECK_HEADERS([windows.h sys/mman.h sys/param.h sys/resource.h sys/time.h])
681 AC_CHECK_HEADERS([sys/types.h malloc/malloc.h mach/mach.h])
682 if test "$ENABLE_THREADS" -eq 1 ; then
683 AC_CHECK_HEADER(pthread.h,
684 AC_SUBST(HAVE_PTHREAD, 1),
685 AC_SUBST(HAVE_PTHREAD, 0))
687 AC_SUBST(HAVE_PTHREAD, 0)
690 dnl===-----------------------------------------------------------------------===
692 dnl=== SECTION 7: Check for types and structures
694 dnl===-----------------------------------------------------------------------===
701 AC_CHECK_TYPES([int64_t],,AC_MSG_ERROR([Type int64_t required but not found]))
702 AC_CHECK_TYPES([uint64_t],,
703 AC_CHECK_TYPES([u_int64_t],,
704 AC_MSG_ERROR([Type uint64_t or u_int64_t required but not found])))
706 dnl===-----------------------------------------------------------------------===
708 dnl=== SECTION 8: Check for specific functions needed
710 dnl===-----------------------------------------------------------------------===
712 AC_CHECK_FUNCS([backtrace ceilf floorf roundf rintf nearbyintf getcwd ])
713 AC_CHECK_FUNCS([getpagesize getrusage getrlimit setrlimit gettimeofday])
714 AC_CHECK_FUNCS([isatty mkdtemp mkstemp ])
715 AC_CHECK_FUNCS([mktemp realpath sbrk setrlimit strdup strerror strerror_r ])
716 AC_CHECK_FUNCS([strtoll strtoq sysconf malloc_zone_statistics ])
717 AC_CHECK_FUNCS([setjmp longjmp sigsetjmp siglongjmp])
722 dnl Check for variations in the Standard C++ library and STL. These macros are
723 dnl provided by LLVM in the autoconf/m4 directory.
726 AC_CXX_HAVE_STD_ITERATOR
727 AC_CXX_HAVE_BI_ITERATOR
728 AC_CXX_HAVE_FWD_ITERATOR
732 dnl Check for mmap support.We also need to know if /dev/zero is required to
733 dnl be opened for allocating RWX memory.
734 dnl Make sure we aren't attempting to configure for an unknown system
735 if test "$llvm_cv_platform_type" = "Unix" ; then
738 AC_NEED_DEV_ZERO_FOR_MMAP
740 if test "$ac_cv_func_mmap_fixed_mapped" = "no"
742 AC_MSG_WARN([mmap() of a fixed address required but not supported])
744 if test "$ac_cv_func_mmap_file" = "no"
746 AC_MSG_WARN([mmap() of files required but not found])
750 dnl===-----------------------------------------------------------------------===
752 dnl=== SECTION 9: Additional checks, variables, etc.
754 dnl===-----------------------------------------------------------------------===
756 dnl See if the llvm-gcc executable can compile to LLVM assembly
757 AC_CACHE_CHECK([whether llvm-gcc is sane],[llvm_cv_llvmgcc_sanity],
758 [llvm_cv_llvmgcc_sanity="no"
759 if test -x "$LLVMGCC" ; then
760 cp /dev/null conftest.c
761 "$LLVMGCC" -emit-llvm -S -o - conftest.c | \
762 grep 'target datalayout =' > /dev/null 2>&1
763 if test $? -eq 0 ; then
764 llvm_cv_llvmgcc_sanity="yes"
769 dnl Since we have a sane llvm-gcc, identify it and its sub-tools
770 if test "$llvm_cv_llvmgcc_sanity" = "yes" ; then
771 AC_MSG_CHECKING([llvm-gcc component support])
772 llvmcc1path=`"$LLVMGCC" --print-prog-name=cc1`
773 AC_SUBST(LLVMCC1,$llvmcc1path)
774 llvmcc1pluspath=`"$LLVMGCC" --print-prog-name=cc1plus`
775 AC_SUBST(LLVMCC1PLUS,$llvmcc1pluspath)
776 llvmgccdir=`echo "$llvmcc1path" | sed 's,/libexec/.*,,'`
777 AC_SUBST(LLVMGCCDIR,$llvmgccdir)
778 llvmgcclibexec=`echo "$llvmcc1path" | sed 's,/cc1,,'`
779 AC_SUBST(LLVMGCCLIBEXEC,$llvmgcclibexec)
780 llvmgccversion=[`"$LLVMGCC" -dumpversion 2>&1 | sed 's/^\([0-9.]*\).*/\1/'`]
781 llvmgccmajvers=[`echo $llvmgccversion | sed 's/^\([0-9]\).*/\1/'`]
782 AC_SUBST(LLVMGCC_VERSION,$llvmgccversion)
783 AC_SUBST(LLVMGCC_MAJVERS,$llvmgccmajvers)
784 llvmgcclangs=[`"$LLVMGCC" -v --help 2>&1 | grep '^Configured with:' | sed 's/^.*--enable-languages=\([^ -]*\).*/\1/'`]
785 AC_SUBST(LLVMGCC_LANGS,$llvmgcclangs)
789 dnl Propagate the shared library extension that the libltdl checks did to
790 dnl the Makefiles so we can use it there too
791 AC_SUBST(SHLIBEXT,$libltdl_cv_shlibext)
793 # Translate the various configuration directories and other basic
794 # information into substitutions that will end up in Makefile.config.in
795 # that these configured values can be used by the makefiles
796 if test "${prefix}" = "NONE" ; then
799 eval LLVM_PREFIX="${prefix}";
800 eval LLVM_BINDIR="${prefix}/bin";
801 eval LLVM_LIBDIR="${prefix}/lib";
802 eval LLVM_DATADIR="${prefix}/share/llvm";
803 eval LLVM_DOCSDIR="${prefix}/docs/llvm";
804 eval LLVM_ETCDIR="${prefix}/etc/llvm";
805 eval LLVM_INCLUDEDIR="${prefix}/include";
806 eval LLVM_INFODIR="${prefix}/info";
807 eval LLVM_MANDIR="${prefix}/man";
808 LLVM_CONFIGTIME=`date`
809 AC_SUBST(LLVM_PREFIX)
810 AC_SUBST(LLVM_BINDIR)
811 AC_SUBST(LLVM_LIBDIR)
812 AC_SUBST(LLVM_DATADIR)
813 AC_SUBST(LLVM_DOCSDIR)
814 AC_SUBST(LLVM_ETCDIR)
815 AC_SUBST(LLVM_INCLUDEDIR)
816 AC_SUBST(LLVM_INFODIR)
817 AC_SUBST(LLVM_MANDIR)
818 AC_SUBST(LLVM_CONFIGTIME)
820 # Place the various directores into the config.h file as #defines so that we
821 # can know about the installation paths within LLVM.
822 AC_DEFINE_UNQUOTED(LLVM_PREFIX,"$LLVM_PREFIX",
823 [Installation prefix directory])
824 AC_DEFINE_UNQUOTED(LLVM_BINDIR, "$LLVM_BINDIR",
825 [Installation directory for binary executables])
826 AC_DEFINE_UNQUOTED(LLVM_LIBDIR, "$LLVM_LIBDIR",
827 [Installation directory for libraries])
828 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DATADIR",
829 [Installation directory for data files])
830 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DOCSDIR",
831 [Installation directory for documentation])
832 AC_DEFINE_UNQUOTED(LLVM_ETCDIR, "$LLVM_ETCDIR",
833 [Installation directory for config files])
834 AC_DEFINE_UNQUOTED(LLVM_INCLUDEDIR, "$LLVM_INCLUDEDIR",
835 [Installation directory for include files])
836 AC_DEFINE_UNQUOTED(LLVM_INFODIR, "$LLVM_INFODIR",
837 [Installation directory for .info files])
838 AC_DEFINE_UNQUOTED(LLVM_MANDIR, "$LLVM_MANDIR",
839 [Installation directory for man pages])
840 AC_DEFINE_UNQUOTED(LLVM_CONFIGTIME, "$LLVM_CONFIGTIME",
841 [Time at which LLVM was configured])
843 dnl===-----------------------------------------------------------------------===
845 dnl=== SECTION 10: Specify the output files and generate it
847 dnl===-----------------------------------------------------------------------===
849 dnl Configure header files
850 dnl WARNING: dnl If you add or remove any of the following config headers, then
851 dnl you MUST also update Makefile.rules so that the variable FilesToConfig
852 dnl contains the same list of files as AC_CONFIG_HEADERS below. This ensures the
853 dnl files can be updated automatically when their *.in sources change.
854 AC_CONFIG_HEADERS([include/llvm/Config/config.h])
855 AC_CONFIG_HEADERS([include/llvm/Support/DataTypes.h])
856 AC_CONFIG_HEADERS([include/llvm/ADT/hash_map])
857 AC_CONFIG_HEADERS([include/llvm/ADT/hash_set])
858 AC_CONFIG_HEADERS([include/llvm/ADT/iterator])
860 dnl Configure the makefile's configuration data
861 AC_CONFIG_FILES([Makefile.config])
863 dnl Configure the RPM spec file for LLVM
864 AC_CONFIG_FILES([llvm.spec])
866 dnl Configure doxygen's configuration file
867 AC_CONFIG_FILES([docs/doxygen.cfg])
869 dnl Do the first stage of configuration for llvm-config.in.
870 AC_CONFIG_FILES([tools/llvm-config/llvm-config.in])
872 dnl Do special configuration of Makefiles
873 AC_CONFIG_COMMANDS([setup],,[llvm_src="${srcdir}"])
874 AC_CONFIG_MAKEFILE(Makefile)
875 AC_CONFIG_MAKEFILE(Makefile.common)
876 AC_CONFIG_MAKEFILE(examples/Makefile)
877 AC_CONFIG_MAKEFILE(lib/Makefile)
878 AC_CONFIG_MAKEFILE(runtime/Makefile)
879 AC_CONFIG_MAKEFILE(test/Makefile)
880 AC_CONFIG_MAKEFILE(test/Makefile.tests)
881 AC_CONFIG_MAKEFILE(tools/Makefile)
882 AC_CONFIG_MAKEFILE(utils/Makefile)
883 AC_CONFIG_MAKEFILE(projects/Makefile)
885 dnl Finally, crank out the output