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) 2003-2007 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 $llvm_cv_platform_type in
194 AC_DEFINE([LLVM_ON_UNIX],[1],[Define if this is Unixish platform])
195 AC_SUBST(LLVM_ON_UNIX,[1])
196 AC_SUBST(LLVM_ON_WIN32,[0])
199 AC_DEFINE([LLVM_ON_WIN32],[1],[Define if this is Win32ish platform])
200 AC_SUBST(LLVM_ON_UNIX,[0])
201 AC_SUBST(LLVM_ON_WIN32,[1])
205 dnl Determine what our target architecture is and configure accordingly.
206 dnl This will allow Makefiles to make a distinction between the hardware and
208 AC_CACHE_CHECK([target architecture],[llvm_cv_target_arch],
210 i?86-*) llvm_cv_target_arch="x86" ;;
211 amd64-* | x86_64-*) llvm_cv_target_arch="x86_64" ;;
212 sparc*-*) llvm_cv_target_arch="Sparc" ;;
213 powerpc*-*) llvm_cv_target_arch="PowerPC" ;;
214 alpha*-*) llvm_cv_target_arch="Alpha" ;;
215 ia64-*) llvm_cv_target_arch="IA64" ;;
216 *) llvm_cv_target_arch="Unknown" ;;
219 if test "$llvm_cv_target_arch" = "Unknown" ; then
220 AC_MSG_WARN([Configuring LLVM for an unknown target archicture])
223 dnl Define a substitution, ARCH, for the target architecture
224 AC_SUBST(ARCH,$llvm_cv_target_arch)
226 dnl Check for the endianness of the target
227 AC_C_BIGENDIAN(AC_SUBST([ENDIAN],[big]),AC_SUBST([ENDIAN],[little]))
229 dnl Check for build platform executable suffix if we're crosscompiling
230 if test "$cross_compiling" = yes; then
231 AC_SUBST(LLVM_CROSS_COMPILING, [1])
234 AC_SUBST(LLVM_CROSS_COMPILING, [0])
237 dnl Check to see if there's a "CVS" directory indicating that this build is
238 dnl being done from a CVS checkout. This sets up several defaults for the
239 dnl command line switches. When we build with a CVS directory, we get a
240 dnl debug with assertions turned on. Without, we assume a source release and we
241 dnl get an optimized build without assertions. See --enable-optimized and
242 dnl --enable-assertions below
243 if test -d "CVS" -o -d "${srcdir}/CVS"; then
246 AC_SUBST(CVSBUILD,[[CVSBUILD=1]])
252 dnl===-----------------------------------------------------------------------===
254 dnl=== SECTION 3: Command line arguments for the configure script.
256 dnl===-----------------------------------------------------------------------===
258 dnl --enable-optimized : check whether they want to do an optimized build:
259 AC_ARG_ENABLE(optimized, AS_HELP_STRING(
260 [--enable-optimized,Compile with optimizations enabled (default is NO)]),,enableval=$optimize)
261 if test ${enableval} = "no" ; then
262 AC_SUBST(ENABLE_OPTIMIZED,[[]])
264 AC_SUBST(ENABLE_OPTIMIZED,[[ENABLE_OPTIMIZED=1]])
267 dnl --enable-assertions : check whether they want to turn on assertions or not:
268 AC_ARG_ENABLE(assertions,AS_HELP_STRING(
269 [--enable-assertions,Compile with assertion checks enabled (default is YES)]),, enableval="yes")
270 if test ${enableval} = "yes" ; then
271 AC_SUBST(DISABLE_ASSERTIONS,[[]])
273 AC_SUBST(DISABLE_ASSERTIONS,[[DISABLE_ASSERTIONS=1]])
276 dnl --enable-debug-runtime : should runtime libraries have debug symbols?
277 AC_ARG_ENABLE(debug-runtime,
278 AS_HELP_STRING([--enable-debug-runtime,Build runtime libs with debug symbols (default is NO)]),,enableval=no)
279 if test ${enableval} = "no" ; then
280 AC_SUBST(DEBUG_RUNTIME,[[]])
282 AC_SUBST(DEBUG_RUNTIME,[[DEBUG_RUNTIME=1]])
285 dnl --enable-jit: check whether they want to enable the jit
287 AS_HELP_STRING(--enable-jit,
288 [Enable Just In Time Compiling (default is YES)]),,
290 if test ${enableval} = "no"
294 case "$llvm_cv_target_arch" in
295 x86) AC_SUBST(TARGET_HAS_JIT,1) ;;
296 Sparc) AC_SUBST(TARGET_HAS_JIT,1) ;;
297 PowerPC) AC_SUBST(TARGET_HAS_JIT,1) ;;
298 x86_64) AC_SUBST(TARGET_HAS_JIT,0) ;;
299 Alpha) AC_SUBST(TARGET_HAS_JIT,1) ;;
300 IA64) AC_SUBST(TARGET_HAS_JIT,0) ;;
301 *) AC_SUBST(TARGET_HAS_JIT,0) ;;
305 dnl Allow enablement of doxygen generated documentation
306 AC_ARG_ENABLE(doxygen,
307 AS_HELP_STRING([--enable-doxygen],
308 [Build doxygen documentation (default is NO)]),,
311 yes) AC_SUBST(ENABLE_DOXYGEN,[1]) ;;
312 no) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
313 default) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
314 *) AC_MSG_ERROR([Invalid setting for --enable-doxygen. Use "yes" or "no"]) ;;
317 dnl Allow disablement of threads
318 AC_ARG_ENABLE(threads,
319 AS_HELP_STRING([--enable-threads],
320 [Use threads if available (default is YES)]),,
323 yes) AC_SUBST(ENABLE_THREADS,[1]) ;;
324 no) AC_SUBST(ENABLE_THREADS,[0]) ;;
325 default) AC_SUBST(ENABLE_THREADS,[1]) ;;
326 *) AC_MSG_ERROR([Invalid setting for --enable-threads. Use "yes" or "no"]) ;;
328 AC_DEFINE_UNQUOTED([ENABLE_THREADS],$ENABLE_THREADS,[Define if threads enabled])
330 dnl Allow building with position independent code
332 AS_HELP_STRING([--enable-pic],
333 [Build LLVM with Position Independent Code (default is NO)]),,
336 yes) AC_SUBST(ENABLE_PIC,[1]) ;;
337 no) AC_SUBST(ENABLE_PIC,[0]) ;;
338 default) AC_SUBST(ENABLE_PIC,[0]) ;;
339 *) AC_MSG_ERROR([Invalid setting for --enable-pic. Use "yes" or "no"]) ;;
341 AC_DEFINE_UNQUOTED([ENABLE_PIC],$ENABLE_PIC,
342 [Define if position independent code is enabled])
344 dnl Allow specific targets to be specified for building (or not)
346 AC_ARG_ENABLE([targets],AS_HELP_STRING([--enable-targets],
347 [Build specific host targets: all,host-only,{target-name} (default=all)]),,
350 all) TARGETS_TO_BUILD="X86 Sparc PowerPC Alpha IA64 ARM" ;;
352 case "$llvm_cv_target_arch" in
353 x86) TARGETS_TO_BUILD="X86" ;;
354 x86_64) TARGETS_TO_BUILD="X86" ;;
355 Sparc) TARGETS_TO_BUILD="Sparc" ;;
356 PowerPC) TARGETS_TO_BUILD="PowerPC" ;;
357 Alpha) TARGETS_TO_BUILD="Alpha" ;;
358 IA64) TARGETS_TO_BUILD="IA64" ;;
359 *) AC_MSG_ERROR([Can not set target to build]) ;;
362 *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
364 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
365 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
366 sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
367 powerpc) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
368 alpha) TARGETS_TO_BUILD="Alpha $TARGETS_TO_BUILD" ;;
369 ia64) TARGETS_TO_BUILD="IA64 $TARGETS_TO_BUILD" ;;
370 *) AC_MSG_ERROR([Unrecognized target $a_target]) ;;
375 TARGETS_TO_BUILD="CBackend $TARGETS_TO_BUILD"
376 AC_SUBST(TARGETS_TO_BUILD,$TARGETS_TO_BUILD)
378 dnl Prevent the CBackend from using printf("%a") for floating point so older
379 dnl C compilers that cannot deal with the 0x0p+0 hex floating point format
380 dnl can still compile the CBE's output
381 AC_ARG_ENABLE([cbe-printf-a],AS_HELP_STRING([--enable-cbe-printf-a],
382 [Enable C Backend output with hex floating point via %a (default is YES)]),,
385 yes) AC_SUBST(ENABLE_CBE_PRINTF_A,[1]) ;;
386 no) AC_SUBST(ENABLE_CBE_PRINTF_A,[0]) ;;
387 default) AC_SUBST(ENABLE_CBE_PRINTF_A,[1]) ;;
388 *) AC_MSG_ERROR([Invalid setting for --enable-cbe-printf-a. Use "yes" or "no"]) ;;
390 AC_DEFINE_UNQUOTED([ENABLE_CBE_PRINTF_A],$ENABLE_CBE_PRINTF_A,
391 [Define if CBE is enabled for printf %a output])
393 dnl Allow a specific llvm-gcc/llvm-g++ pair to be used with this LLVM config.
394 AC_ARG_WITH(llvmgccdir,
395 AS_HELP_STRING([--with-llvmgccdir],
396 [Specify location of llvm-gcc install dir (default searches PATH)]),,
399 default) WITH_LLVMGCCDIR=default ;;
400 /* | [[A-Za-z]]:[[\\/]]*) WITH_LLVMGCCDIR=$withval ;;
401 *) AC_MSG_ERROR([Invalid path for --with-llvmgccdir. Provide full path]) ;;
404 dnl Specify extra build options
405 AC_ARG_WITH(extra-options,
406 AS_HELP_STRING([--with-extra-options],
407 [Specify addtional options to compile LLVM with]),,
410 default) EXTRA_OPTIONS= ;;
411 *) EXTRA_OPTIONS=$withval ;;
413 AC_SUBST(EXTRA_OPTIONS,$EXTRA_OPTIONS)
415 dnl===-----------------------------------------------------------------------===
417 dnl=== SECTION 4: Check for programs we need and that they are the right version
419 dnl===-----------------------------------------------------------------------===
421 dnl Check for compilation tools
431 dnl Check for the tools that the makefiles require
434 AC_PATH_PROG(CMP, [cmp], [cmp])
435 AC_PATH_PROG(CP, [cp], [cp])
436 AC_PATH_PROG(DATE, [date], [date])
437 AC_PATH_PROG(FIND, [find], [find])
438 AC_PATH_PROG(GREP, [grep], [grep])
439 AC_PATH_PROG(MKDIR,[mkdir],[mkdir])
440 AC_PATH_PROG(MV, [mv], [mv])
442 AC_PATH_PROG(RM, [rm], [rm])
443 AC_PATH_PROG(SED, [sed], [sed])
444 AC_PATH_PROG(TAR, [tar], [gtar])
445 AC_PATH_PROG(BINPWD,[pwd], [pwd])
447 dnl Looking for misc. graph plotting software
448 AC_PATH_PROG(GRAPHVIZ, [Graphviz], [echo Graphviz])
449 if test "$GRAPHVIZ" != "echo Graphviz" ; then
450 AC_DEFINE([HAVE_GRAPHVIZ],[1],[Define if the Graphviz program is available])
451 dnl If we're targeting for mingw we should emit windows paths, not msys
452 if test "$llvm_cv_os_type" = "MingW" ; then
453 GRAPHVIZ=`echo $GRAPHVIZ | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
455 AC_DEFINE_UNQUOTED([LLVM_PATH_GRAPHVIZ],"$GRAPHVIZ${EXEEXT}",
456 [Define to path to Graphviz program if found or 'echo Graphviz' otherwise])
458 AC_PATH_PROG(DOT, [dot], [echo dot])
459 if test "$DOT" != "echo dot" ; then
460 AC_DEFINE([HAVE_DOT],[1],[Define if the dot program is available])
461 dnl If we're targeting for mingw we should emit windows paths, not msys
462 if test "$llvm_cv_os_type" = "MingW" ; then
463 DOT=`echo $DOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
465 AC_DEFINE_UNQUOTED([LLVM_PATH_DOT],"$DOT${EXEEXT}",
466 [Define to path to dot program if found or 'echo dot' otherwise])
468 AC_PATH_PROGS(GV, [gv gsview32], [echo gv])
469 if test "$GV" != "echo gv" ; then
470 AC_DEFINE([HAVE_GV],[1],[Define if the gv program is available])
471 dnl If we're targeting for mingw we should emit windows paths, not msys
472 if test "$llvm_cv_os_type" = "MingW" ; then
473 GV=`echo $GV | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
475 AC_DEFINE_UNQUOTED([LLVM_PATH_GV],"$GV${EXEEXT}",
476 [Define to path to gv program if found or 'echo gv' otherwise])
478 AC_PATH_PROG(DOTTY, [dotty], [echo dotty])
479 if test "$DOTTY" != "echo dotty" ; then
480 AC_DEFINE([HAVE_DOTTY],[1],[Define if the dotty program is available])
481 dnl If we're targeting for mingw we should emit windows paths, not msys
482 if test "$llvm_cv_os_type" = "MingW" ; then
483 DOTTY=`echo $DOTTY | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
485 AC_DEFINE_UNQUOTED([LLVM_PATH_DOTTY],"$DOTTY${EXEEXT}",
486 [Define to path to dotty program if found or 'echo dotty' otherwise])
489 dnl Look for a sufficiently recent version of Perl.
490 LLVM_PROG_PERL([5.006])
492 if test x"$PERL" = xnone; then
493 AC_SUBST(HAVE_PERL,0)
495 AC_SUBST(HAVE_PERL,1)
498 dnl Find the install program
501 dnl Checks for documentation and testing tools that we can do without. If these
502 dnl are not found then they are set to "true" which always succeeds but does
503 dnl nothing. This just lets the build output show that we could have done
504 dnl something if the tool was available.
505 AC_PATH_PROG(BZIP2,[bzip2],[echo "Skipped: bzip2 not found"])
506 AC_PATH_PROG(DOXYGEN,[doxygen],[echo "Skipped: doxygen not found"])
507 AC_PATH_PROG(GROFF,[groff],[echo "Skipped: groff not found"])
508 AC_PATH_PROG(GZIP,[gzip],[echo "Skipped: gzip not found"])
509 AC_PATH_PROG(POD2HTML,[pod2html],[echo "Skipped: pod2html not found"])
510 AC_PATH_PROG(POD2MAN,[pod2man],[echo "Skipped: pod2man not found"])
511 AC_PATH_PROG(RUNTEST,[runtest],[echo "Skipped: runtest not found"])
513 AC_PATH_PROG(ZIP,[zip],[echo "Skipped: zip not found"])
515 dnl Determine if the linker supports the -R option.
518 dnl Check for libtool and the library that has dlopen function (which must come
519 dnl before the AC_PROG_LIBTOOL check in order to enable dlopening libraries with
525 if test "$lt_cv_dlopen_self" = "yes" ; then
526 AC_DEFINE([CAN_DLOPEN_SELF],[1],
527 [Define if dlopen(0) will open the symbols of the program])
530 dnl Check if we know how to tell etags we are using C++:
531 etags_version=`$ETAGS --version 2>&1`
532 case "$etags_version" in
533 *[Ee]xuberant*) ETAGSFLAGS="--language-force=c++" ;;
534 *GNU\ Emacs*) ETAGSFLAGS="-l c++" ;;
537 AC_SUBST(ETAGSFLAGS,$ETAGSFLAGS)
539 if test "$WITH_LLVMGCCDIR" = "default" ; then
540 LLVMGCC="llvm-gcc${EXEEXT}"
541 LLVMGXX="llvm-g++${EXEEXT}"
542 AC_PATH_PROG(LLVMGCC, $LLVMGCC, [])
543 AC_PATH_PROG(LLVMGXX, $LLVMGXX, [])
545 LLVMGCC="$WITH_LLVMGCCDIR/bin/llvm-gcc${EXEEXT}"
546 LLVMGXX="$WITH_LLVMGCCDIR/bin/llvm-g++${EXEEXT}"
547 AC_SUBST(LLVMGCC,$LLVMGCC)
548 AC_SUBST(LLVMGXX,$LLVMGXX)
551 AC_MSG_CHECKING([tool compatibility])
553 dnl Ensure that compilation tools are GCC or a GNU compatible compiler such as
554 dnl ICC; we use GCC specific options in the makefiles so the compiler needs
555 dnl to support those options.
556 dnl "icc" emits gcc signatures
557 dnl "icc -no-gcc" emits no gcc signature BUT is still compatible
569 if test "$GCC" != "yes" && test "$ICC" != "yes"
571 AC_MSG_ERROR([gcc|icc required but not found])
574 dnl Ensure that compilation tools are GCC; we use GCC specific extensions
575 if test "$GXX" != "yes" && test "$IXX" != "yes"
577 AC_MSG_ERROR([g++|icc required but not found])
580 dnl Verify that GCC is version 3.0 or higher
581 if test "$GCC" = "yes"
583 gccmajor=`$CC --version | head -n 1 | sed 's/[[^0-9]]*\([[0-9.]]\).*/\1/'`
584 if test "$gccmajor" -lt "3"
586 AC_MSG_ERROR([gcc 3.x required, but you have a lower version])
590 dnl Check for GNU Make. We use its extensions, so don't build without it
591 if test -z "$llvm_cv_gnu_make_command"
593 AC_MSG_ERROR([GNU Make required but not found])
596 dnl Tool compatibility is okay if we make it here.
599 dnl===-----------------------------------------------------------------------===
601 dnl=== SECTION 5: Check for libraries
603 dnl===-----------------------------------------------------------------------===
605 dnl libelf is for sparc only; we can ignore it if we don't have it
606 AC_CHECK_LIB(elf, elf_begin)
608 if test "$llvm_cv_os_type" = "MingW" ; then
609 AC_CHECK_LIB(imagehlp, main)
610 AC_CHECK_LIB(psapi, main)
613 dnl lt_dlopen may be required for plugin support.
614 AC_SEARCH_LIBS(lt_dlopen,ltdl,AC_DEFINE([HAVE_LT_DLOPEN],[1],
615 [Define if lt_dlopen() is available on this platform]),
616 AC_MSG_WARN([lt_dlopen() not found - plugin support might
619 dnl dlopen() is required for plugin support.
620 AC_SEARCH_LIBS(dlopen,dl,AC_DEFINE([HAVE_DLOPEN],[1],
621 [Define if dlopen() is available on this platform.]),
622 AC_MSG_WARN([dlopen() not found - disabling plugin support]))
624 dnl mallinfo is optional; the code can compile (minus features) without it
625 AC_SEARCH_LIBS(mallinfo,malloc,AC_DEFINE([HAVE_MALLINFO],[1],
626 [Define if mallinfo() is available on this platform.]))
628 dnl pthread locking functions are optional - but llvm will not be thread-safe
630 if test "$ENABLE_THREADS" -eq 1 ; then
631 AC_CHECK_LIB(pthread,pthread_mutex_init)
632 AC_SEARCH_LIBS(pthread_mutex_lock,pthread,
633 AC_DEFINE([HAVE_PTHREAD_MUTEX_LOCK],[1],
634 [Have pthread_mutex_lock]))
637 dnl Allow extra x86-disassembler library
639 AS_HELP_STRING([--with-udis86=<path>],
640 [Use udis86 external x86 disassembler library]),
642 AC_SUBST(USE_UDIS86, [1])
645 *) LDFLAGS="$LDFLAGS -L${withval}" ;;
647 AC_CHECK_LIB(udis86, ud_init, [], [
648 echo "Error! You need to have libudis86 around."
652 AC_SUBST(USE_UDIS86, [0]))
653 AC_DEFINE_UNQUOTED([USE_UDIS86],$USE_UDIS86,
654 [Define if use udis86 library])
656 dnl===-----------------------------------------------------------------------===
658 dnl=== SECTION 6: Check for header files
660 dnl===-----------------------------------------------------------------------===
662 dnl First, use autoconf provided macros for specific headers that we need
663 dnl We don't check for ancient stuff or things that are guaranteed to be there
664 dnl by the C++ standard. We always use the <cfoo> versions of <foo.h> C headers.
665 dnl Generally we're looking for POSIX headers.
667 AC_HEADER_MMAP_ANONYMOUS
673 AC_CHECK_HEADERS([dlfcn.h execinfo.h fcntl.h inttypes.h limits.h link.h])
674 AC_CHECK_HEADERS([malloc.h setjmp.h signal.h stdint.h unistd.h utime.h])
675 AC_CHECK_HEADERS([windows.h sys/mman.h sys/param.h sys/resource.h sys/time.h])
676 AC_CHECK_HEADERS([sys/types.h malloc/malloc.h mach/mach.h])
677 if test "$ENABLE_THREADS" -eq 1 ; then
678 AC_CHECK_HEADER(pthread.h,
679 AC_SUBST(HAVE_PTHREAD, 1),
680 AC_SUBST(HAVE_PTHREAD, 0))
682 AC_SUBST(HAVE_PTHREAD, 0)
685 dnl===-----------------------------------------------------------------------===
687 dnl=== SECTION 7: Check for types and structures
689 dnl===-----------------------------------------------------------------------===
696 AC_CHECK_TYPES([int64_t],,AC_MSG_ERROR([Type int64_t required but not found]))
697 AC_CHECK_TYPES([uint64_t],,
698 AC_CHECK_TYPES([u_int64_t],,
699 AC_MSG_ERROR([Type uint64_t or u_int64_t required but not found])))
701 dnl===-----------------------------------------------------------------------===
703 dnl=== SECTION 8: Check for specific functions needed
705 dnl===-----------------------------------------------------------------------===
707 AC_CHECK_FUNCS([backtrace ceilf floorf roundf rintf nearbyintf getcwd ])
708 AC_CHECK_FUNCS([getpagesize getrusage gettimeofday isatty mkdtemp mkstemp ])
709 AC_CHECK_FUNCS([mktemp realpath sbrk setrlimit strdup strerror strerror_r ])
710 AC_CHECK_FUNCS([strtoll strtoq sysconf malloc_zone_statistics ])
711 AC_CHECK_FUNCS([setjmp longjmp sigsetjmp siglongjmp])
716 dnl Check for variations in the Standard C++ library and STL. These macros are
717 dnl provided by LLVM in the autoconf/m4 directory.
720 AC_CXX_HAVE_STD_ITERATOR
721 AC_CXX_HAVE_BI_ITERATOR
722 AC_CXX_HAVE_FWD_ITERATOR
726 dnl Check for mmap support.We also need to know if /dev/zero is required to
727 dnl be opened for allocating RWX memory.
728 dnl Make sure we aren't attempting to configure for an unknown system
729 if test "$llvm_cv_platform_type" = "Unix" ; then
732 AC_NEED_DEV_ZERO_FOR_MMAP
734 if test "$ac_cv_func_mmap_fixed_mapped" = "no"
736 AC_MSG_WARN([mmap() of a fixed address required but not supported])
738 if test "$ac_cv_func_mmap_file" = "no"
740 AC_MSG_WARN([mmap() of files required but not found])
744 dnl===-----------------------------------------------------------------------===
746 dnl=== SECTION 9: Additional checks, variables, etc.
748 dnl===-----------------------------------------------------------------------===
750 dnl See if the llvm-gcc executable can compile to LLVM assembly
751 AC_CACHE_CHECK([whether llvm-gcc is sane],[llvm_cv_llvmgcc_sanity],
752 [llvm_cv_llvmgcc_sanity="no"
753 if test -x "$LLVMGCC" ; then
754 cp /dev/null conftest.c
755 "$LLVMGCC" -emit-llvm -S -o - conftest.c | grep implementation > /dev/null 2>&1
756 if test $? -eq 0 ; then
757 llvm_cv_llvmgcc_sanity="yes"
762 dnl Since we have a sane llvm-gcc, identify it and its sub-tools
763 if test "$llvm_cv_llvmgcc_sanity" = "yes" ; then
764 llvmcc1path=`"$LLVMGCC" --print-prog-name=cc1`
765 AC_SUBST(LLVMCC1,$llvmcc1path)
766 llvmcc1pluspath=`"$LLVMGCC" --print-prog-name=cc1plus`
767 AC_SUBST(LLVMCC1PLUS,$llvmcc1pluspath)
768 llvmgccdir=`echo "$llvmcc1path" | sed 's,/libexec/.*,,'`
769 AC_SUBST(LLVMGCCDIR,$llvmgccdir)
770 llvmgcclibexec=`echo "$llvmcc1path" | sed 's,/cc1,,'`
771 AC_SUBST(LLVMGCCLIBEXEC,$llvmgcclibexec)
772 llvmgccversion=[`"$LLVMGCC" -dumpversion 2>&1 | sed 's/^\([0-9.]*\).*/\1/'`]
773 llvmgccmajvers=[`echo $llvmgccversion | sed 's/^\([0-9]\).*/\1/'`]
774 AC_SUBST(LLVMGCC_VERSION,$llvmgccversion)
775 AC_SUBST(LLVMGCC_MAJVERS,$llvmgccmajvers)
778 dnl Propagate the shared library extension that the libltdl checks did to
779 dnl the Makefiles so we can use it there too
780 AC_SUBST(SHLIBEXT,$libltdl_cv_shlibext)
782 # Translate the various configuration directories and other basic
783 # information into substitutions that will end up in Makefile.config.in
784 # that these configured values can be used by the makefiles
785 if test "${prefix}" = "NONE" ; then
788 eval LLVM_PREFIX="${prefix}";
789 eval LLVM_BINDIR="${prefix}/bin";
790 eval LLVM_LIBDIR="${prefix}/lib";
791 eval LLVM_DATADIR="${prefix}/share/llvm";
792 eval LLVM_DOCSDIR="${prefix}/docs/llvm";
793 eval LLVM_ETCDIR="${prefix}/etc/llvm";
794 eval LLVM_INCLUDEDIR="${prefix}/include";
795 eval LLVM_INFODIR="${prefix}/info";
796 eval LLVM_MANDIR="${prefix}/man";
797 LLVM_CONFIGTIME=`date`
798 AC_SUBST(LLVM_PREFIX)
799 AC_SUBST(LLVM_BINDIR)
800 AC_SUBST(LLVM_LIBDIR)
801 AC_SUBST(LLVM_DATADIR)
802 AC_SUBST(LLVM_DOCSDIR)
803 AC_SUBST(LLVM_ETCDIR)
804 AC_SUBST(LLVM_INCLUDEDIR)
805 AC_SUBST(LLVM_INFODIR)
806 AC_SUBST(LLVM_MANDIR)
807 AC_SUBST(LLVM_CONFIGTIME)
809 # Place the various directores into the config.h file as #defines so that we
810 # can know about the installation paths within LLVM.
811 AC_DEFINE_UNQUOTED(LLVM_PREFIX,"$LLVM_PREFIX",
812 [Installation prefix directory])
813 AC_DEFINE_UNQUOTED(LLVM_BINDIR, "$LLVM_BINDIR",
814 [Installation directory for binary executables])
815 AC_DEFINE_UNQUOTED(LLVM_LIBDIR, "$LLVM_LIBDIR",
816 [Installation directory for libraries])
817 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DATADIR",
818 [Installation directory for data files])
819 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DOCSDIR",
820 [Installation directory for documentation])
821 AC_DEFINE_UNQUOTED(LLVM_ETCDIR, "$LLVM_ETCDIR",
822 [Installation directory for config files])
823 AC_DEFINE_UNQUOTED(LLVM_INCLUDEDIR, "$LLVM_INCLUDEDIR",
824 [Installation directory for include files])
825 AC_DEFINE_UNQUOTED(LLVM_INFODIR, "$LLVM_INFODIR",
826 [Installation directory for .info files])
827 AC_DEFINE_UNQUOTED(LLVM_MANDIR, "$LLVM_MANDIR",
828 [Installation directory for man pages])
829 AC_DEFINE_UNQUOTED(LLVM_CONFIGTIME, "$LLVM_CONFIGTIME",
830 [Time at which LLVM was configured])
832 dnl===-----------------------------------------------------------------------===
834 dnl=== SECTION 10: Specify the output files and generate it
836 dnl===-----------------------------------------------------------------------===
838 dnl Configure header files
839 dnl WARNING: dnl If you add or remove any of the following config headers, then
840 dnl you MUST also update Makefile.rules so that the variable FilesToConfig
841 dnl contains the same list of files as AC_CONFIG_HEADERS below. This ensures the
842 dnl files can be updated automatically when their *.in sources change.
843 AC_CONFIG_HEADERS([include/llvm/Config/config.h])
844 AC_CONFIG_HEADERS([include/llvm/Support/DataTypes.h])
845 AC_CONFIG_HEADERS([include/llvm/ADT/hash_map])
846 AC_CONFIG_HEADERS([include/llvm/ADT/hash_set])
847 AC_CONFIG_HEADERS([include/llvm/ADT/iterator])
849 dnl Configure the makefile's configuration data
850 AC_CONFIG_FILES([Makefile.config])
852 dnl Configure the RPM spec file for LLVM
853 AC_CONFIG_FILES([llvm.spec])
855 dnl Configure doxygen's configuration file
856 AC_CONFIG_FILES([docs/doxygen.cfg])
858 dnl Do the first stage of configuration for llvm-config.in.
859 AC_CONFIG_FILES([tools/llvm-config/llvm-config.in])
861 dnl Do special configuration of Makefiles
862 AC_CONFIG_COMMANDS([setup],,[llvm_src="${srcdir}"])
863 AC_CONFIG_MAKEFILE(Makefile)
864 AC_CONFIG_MAKEFILE(Makefile.common)
865 AC_CONFIG_MAKEFILE(examples/Makefile)
866 AC_CONFIG_MAKEFILE(lib/Makefile)
867 AC_CONFIG_MAKEFILE(runtime/Makefile)
868 AC_CONFIG_MAKEFILE(test/Makefile)
869 AC_CONFIG_MAKEFILE(test/Makefile.tests)
870 AC_CONFIG_MAKEFILE(tools/Makefile)
871 AC_CONFIG_MAKEFILE(utils/Makefile)
872 AC_CONFIG_MAKEFILE(projects/Makefile)
874 dnl Finally, crank out the output