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]],[[2.2svn]],[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 poolalloc) AC_CONFIG_SUBDIRS([projects/poolalloc]) ;;
80 llvm-kernel) AC_CONFIG_SUBDIRS([projects/llvm-kernel]) ;;
82 AC_MSG_WARN([Unknown project (${i}) won't be configured automatically])
88 dnl===-----------------------------------------------------------------------===
90 dnl=== SECTION 2: Architecture, target, and host checks
92 dnl===-----------------------------------------------------------------------===
94 dnl Check the target for which we're compiling and the host that will do the
95 dnl compilations. This will tell us which LLVM compiler will be used for
96 dnl compiling SSA into object code. This needs to be done early because
97 dnl following tests depend on it.
100 dnl Determine the platform type and cache its value. This helps us configure
101 dnl the System library to the correct build platform.
102 AC_CACHE_CHECK([type of operating system we're going to host on],
106 llvm_cv_link_all_option="-Wl,--whole-archive"
107 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
108 llvm_cv_os_type="AIX"
109 llvm_cv_platform_type="Unix" ;;
111 llvm_cv_link_all_option="-Wl,--whole-archive"
112 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
113 llvm_cv_os_type="IRIX"
114 llvm_cv_platform_type="Unix" ;;
116 llvm_cv_link_all_option="-Wl,--whole-archive"
117 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
118 llvm_cv_os_type="Cygwin"
119 llvm_cv_platform_type="Unix" ;;
121 llvm_cv_link_all_option="-Wl,-all_load"
122 llvm_cv_link_all_option="-Wl,-noall_load"
123 llvm_cv_os_type="Darwin"
124 llvm_cv_platform_type="Unix" ;;
126 llvm_cv_link_all_option="-Wl,--whole-archive"
127 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
128 llvm_cv_os_type="FreeBSD"
129 llvm_cv_platform_type="Unix" ;;
131 llvm_cv_link_all_option="-Wl,--whole-archive"
132 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
133 llvm_cv_os_type="OpenBSD"
134 llvm_cv_platform_type="Unix" ;;
136 llvm_cv_link_all_option="-Wl,--whole-archive"
137 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
138 llvm_cv_os_type="NetBSD"
139 llvm_cv_platform_type="Unix" ;;
141 llvm_cv_link_all_option="-Wl,--whole-archive"
142 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
143 llvm_cv_os_type="HP-UX"
144 llvm_cv_platform_type="Unix" ;;
146 llvm_cv_link_all_option="-Wl,--whole-archive"
147 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
148 llvm_cv_os_type="Interix"
149 llvm_cv_platform_type="Unix" ;;
151 llvm_cv_link_all_option="-Wl,--whole-archive"
152 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
153 llvm_cv_os_type="Linux"
154 llvm_cv_platform_type="Unix" ;;
156 llvm_cv_link_all_option="-Wl,-z,allextract"
157 llvm_cv_no_link_all_option="-Wl,-z,defaultextract"
158 llvm_cv_os_type="SunOS"
159 llvm_cv_platform_type="Unix" ;;
161 llvm_cv_link_all_option="-Wl,--whole-archive"
162 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
163 llvm_cv_os_type="Win32"
164 llvm_cv_platform_type="Win32" ;;
166 llvm_cv_link_all_option="-Wl,--whole-archive"
167 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
168 llvm_cv_os_type="MingW"
169 llvm_cv_platform_type="Win32" ;;
171 llvm_cv_link_all_option=""
172 llvm_cv_no_link_all_option=""
173 llvm_cv_os_type="Unknown"
174 llvm_cv_platform_type="Unknown" ;;
177 dnl Make sure we aren't attempting to configure for an unknown system
178 if test "$llvm_cv_os_type" = "Unknown" ; then
179 AC_MSG_ERROR([Operating system is unknown, configure can't continue])
182 dnl Set the "OS" Makefile variable based on the platform type so the
183 dnl makefile can configure itself to specific build hosts
184 AC_SUBST(OS,$llvm_cv_os_type)
186 dnl Set the LINKALL and NOLINKALL Makefile variables based on the platform
187 AC_SUBST(LINKALL,$llvm_cv_link_all_option)
188 AC_SUBST(NOLINKALL,$llvm_cv_no_link_all_option)
190 dnl Set the "LLVM_ON_*" variables based on llvm_cvs_platform_type
191 dnl This is used by lib/System to determine the basic kind of implementation
193 case $llvm_cv_platform_type in
195 AC_DEFINE([LLVM_ON_UNIX],[1],[Define if this is Unixish platform])
196 AC_SUBST(LLVM_ON_UNIX,[1])
197 AC_SUBST(LLVM_ON_WIN32,[0])
200 AC_DEFINE([LLVM_ON_WIN32],[1],[Define if this is Win32ish platform])
201 AC_SUBST(LLVM_ON_UNIX,[0])
202 AC_SUBST(LLVM_ON_WIN32,[1])
206 dnl Determine what our target architecture is and configure accordingly.
207 dnl This will allow Makefiles to make a distinction between the hardware and
209 AC_CACHE_CHECK([target architecture],[llvm_cv_target_arch],
211 i?86-*) llvm_cv_target_arch="x86" ;;
212 amd64-* | x86_64-*) llvm_cv_target_arch="x86_64" ;;
213 sparc*-*) llvm_cv_target_arch="Sparc" ;;
214 powerpc*-*) llvm_cv_target_arch="PowerPC" ;;
215 alpha*-*) llvm_cv_target_arch="Alpha" ;;
216 ia64-*) llvm_cv_target_arch="IA64" ;;
217 arm-*) llvm_cv_target_arch="ARM" ;;
218 mips-*) llvm_cv_target_arch="Mips" ;;
219 *) llvm_cv_target_arch="Unknown" ;;
222 if test "$llvm_cv_target_arch" = "Unknown" ; then
223 AC_MSG_WARN([Configuring LLVM for an unknown target archicture])
226 dnl Define a substitution, ARCH, for the target architecture
227 AC_SUBST(ARCH,$llvm_cv_target_arch)
229 dnl Check for the endianness of the target
230 AC_C_BIGENDIAN(AC_SUBST([ENDIAN],[big]),AC_SUBST([ENDIAN],[little]))
232 dnl Check for build platform executable suffix if we're crosscompiling
233 if test "$cross_compiling" = yes; then
234 AC_SUBST(LLVM_CROSS_COMPILING, [1])
237 AC_SUBST(LLVM_CROSS_COMPILING, [0])
240 dnl Check to see if there's a "CVS" (or .svn) directory indicating that this
241 dnl build is being done from a checkout. This sets up several defaults for the
242 dnl command line switches. When we build with a CVS directory, we get a
243 dnl debug with assertions turned on. Without, we assume a source release and we
244 dnl get an optimized build without assertions. See --enable-optimized and
245 dnl --enable-assertions below
246 if test -d "CVS" -o -d "${srcdir}/CVS" -o -d ".svn" -o -d "${srcdir}/.svn"; then
249 AC_SUBST(CVSBUILD,[[CVSBUILD=1]])
255 dnl===-----------------------------------------------------------------------===
257 dnl=== SECTION 3: Command line arguments for the configure script.
259 dnl===-----------------------------------------------------------------------===
261 dnl --enable-optimized : check whether they want to do an optimized build:
262 AC_ARG_ENABLE(optimized, AS_HELP_STRING(
263 [--enable-optimized,Compile with optimizations enabled (default is NO)]),,enableval=$optimize)
264 if test ${enableval} = "no" ; then
265 AC_SUBST(ENABLE_OPTIMIZED,[[]])
267 AC_SUBST(ENABLE_OPTIMIZED,[[ENABLE_OPTIMIZED=1]])
270 dnl --enable-assertions : check whether they want to turn on assertions or not:
271 AC_ARG_ENABLE(assertions,AS_HELP_STRING(
272 [--enable-assertions,Compile with assertion checks enabled (default is YES)]),, enableval="yes")
273 if test ${enableval} = "yes" ; then
274 AC_SUBST(DISABLE_ASSERTIONS,[[]])
276 AC_SUBST(DISABLE_ASSERTIONS,[[DISABLE_ASSERTIONS=1]])
279 dnl --enable-expensive-checks : check whether they want to turn on expensive debug checks:
280 AC_ARG_ENABLE(expensive-checks,AS_HELP_STRING(
281 [--enable-expensive-checks,Compile with expensive debug checks enabled (default is NO)]),, enableval="no")
282 if test ${enableval} = "yes" ; then
283 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[ENABLE_EXPENSIVE_CHECKS=1]])
284 AC_SUBST(EXPENSIVE_CHECKS,[[yes]])
286 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[]])
287 AC_SUBST(EXPENSIVE_CHECKS,[[no]])
290 dnl --enable-debug-runtime : should runtime libraries have debug symbols?
291 AC_ARG_ENABLE(debug-runtime,
292 AS_HELP_STRING([--enable-debug-runtime,Build runtime libs with debug symbols (default is NO)]),,enableval=no)
293 if test ${enableval} = "no" ; then
294 AC_SUBST(DEBUG_RUNTIME,[[]])
296 AC_SUBST(DEBUG_RUNTIME,[[DEBUG_RUNTIME=1]])
299 dnl --enable-jit: check whether they want to enable the jit
301 AS_HELP_STRING(--enable-jit,
302 [Enable Just In Time Compiling (default is YES)]),,
304 if test ${enableval} = "no"
308 case "$llvm_cv_target_arch" in
309 x86) AC_SUBST(TARGET_HAS_JIT,1) ;;
310 Sparc) AC_SUBST(TARGET_HAS_JIT,0) ;;
311 PowerPC) AC_SUBST(TARGET_HAS_JIT,1) ;;
312 x86_64) AC_SUBST(TARGET_HAS_JIT,1) ;;
313 Alpha) AC_SUBST(TARGET_HAS_JIT,1) ;;
314 IA64) AC_SUBST(TARGET_HAS_JIT,0) ;;
315 ARM) AC_SUBST(TARGET_HAS_JIT,0) ;;
316 Mips) AC_SUBST(TARGET_HAS_JIT,0) ;;
317 *) AC_SUBST(TARGET_HAS_JIT,0) ;;
321 dnl Allow enablement of doxygen generated documentation
322 AC_ARG_ENABLE(doxygen,
323 AS_HELP_STRING([--enable-doxygen],
324 [Build doxygen documentation (default is NO)]),,
327 yes) AC_SUBST(ENABLE_DOXYGEN,[1]) ;;
328 no) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
329 default) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
330 *) AC_MSG_ERROR([Invalid setting for --enable-doxygen. Use "yes" or "no"]) ;;
333 dnl Allow disablement of threads
334 AC_ARG_ENABLE(threads,
335 AS_HELP_STRING([--enable-threads],
336 [Use threads if available (default is YES)]),,
339 yes) AC_SUBST(ENABLE_THREADS,[1]) ;;
340 no) AC_SUBST(ENABLE_THREADS,[0]) ;;
341 default) AC_SUBST(ENABLE_THREADS,[1]) ;;
342 *) AC_MSG_ERROR([Invalid setting for --enable-threads. Use "yes" or "no"]) ;;
344 AC_DEFINE_UNQUOTED([ENABLE_THREADS],$ENABLE_THREADS,[Define if threads enabled])
346 dnl Allow building with position independent code
348 AS_HELP_STRING([--enable-pic],
349 [Build LLVM with Position Independent Code (default is NO)]),,
352 yes) AC_SUBST(ENABLE_PIC,[1]) ;;
353 no) AC_SUBST(ENABLE_PIC,[0]) ;;
354 default) AC_SUBST(ENABLE_PIC,[0]) ;;
355 *) AC_MSG_ERROR([Invalid setting for --enable-pic. Use "yes" or "no"]) ;;
357 AC_DEFINE_UNQUOTED([ENABLE_PIC],$ENABLE_PIC,
358 [Define if position independent code is enabled])
360 dnl Allow specific targets to be specified for building (or not)
362 AC_ARG_ENABLE([targets],AS_HELP_STRING([--enable-targets],
363 [Build specific host targets: all,host-only,{target-name} (default=all)]),,
366 all) TARGETS_TO_BUILD="X86 Sparc PowerPC Alpha IA64 ARM Mips" ;;
368 case "$llvm_cv_target_arch" in
369 x86) TARGETS_TO_BUILD="X86" ;;
370 x86_64) TARGETS_TO_BUILD="X86" ;;
371 Sparc) TARGETS_TO_BUILD="Sparc" ;;
372 PowerPC) TARGETS_TO_BUILD="PowerPC" ;;
373 Alpha) TARGETS_TO_BUILD="Alpha" ;;
374 IA64) TARGETS_TO_BUILD="IA64" ;;
375 ARM) TARGETS_TO_BUILD="ARM" ;;
376 Mips) TARGETS_TO_BUILD="Mips" ;;
377 *) AC_MSG_ERROR([Can not set target to build]) ;;
380 *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
382 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
383 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
384 sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
385 powerpc) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
386 alpha) TARGETS_TO_BUILD="Alpha $TARGETS_TO_BUILD" ;;
387 ia64) TARGETS_TO_BUILD="IA64 $TARGETS_TO_BUILD" ;;
388 arm) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
389 mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
390 *) AC_MSG_ERROR([Unrecognized target $a_target]) ;;
395 TARGETS_TO_BUILD="CBackend MSIL $TARGETS_TO_BUILD"
396 AC_SUBST(TARGETS_TO_BUILD,$TARGETS_TO_BUILD)
398 dnl Prevent the CBackend from using printf("%a") for floating point so older
399 dnl C compilers that cannot deal with the 0x0p+0 hex floating point format
400 dnl can still compile the CBE's output
401 AC_ARG_ENABLE([cbe-printf-a],AS_HELP_STRING([--enable-cbe-printf-a],
402 [Enable C Backend output with hex floating point via %a (default is YES)]),,
405 yes) AC_SUBST(ENABLE_CBE_PRINTF_A,[1]) ;;
406 no) AC_SUBST(ENABLE_CBE_PRINTF_A,[0]) ;;
407 default) AC_SUBST(ENABLE_CBE_PRINTF_A,[1]) ;;
408 *) AC_MSG_ERROR([Invalid setting for --enable-cbe-printf-a. Use "yes" or "no"]) ;;
410 AC_DEFINE_UNQUOTED([ENABLE_CBE_PRINTF_A],$ENABLE_CBE_PRINTF_A,
411 [Define if CBE is enabled for printf %a output])
413 dnl Allow a specific llvm-gcc/llvm-g++ pair to be used with this LLVM config.
414 AC_ARG_WITH(llvmgccdir,
415 AS_HELP_STRING([--with-llvmgccdir],
416 [Specify location of llvm-gcc install dir (default searches PATH)]),,
419 default) WITH_LLVMGCCDIR=default ;;
420 /* | [[A-Za-z]]:[[\\/]]*) WITH_LLVMGCCDIR=$withval ;;
421 *) AC_MSG_ERROR([Invalid path for --with-llvmgccdir. Provide full path]) ;;
424 dnl Specify extra build options
425 AC_ARG_WITH(extra-options,
426 AS_HELP_STRING([--with-extra-options],
427 [Specify addtional options to compile LLVM with]),,
430 default) EXTRA_OPTIONS= ;;
431 *) EXTRA_OPTIONS=$withval ;;
433 AC_SUBST(EXTRA_OPTIONS,$EXTRA_OPTIONS)
435 dnl===-----------------------------------------------------------------------===
437 dnl=== SECTION 4: Check for programs we need and that they are the right version
439 dnl===-----------------------------------------------------------------------===
441 dnl Check for compilation tools
451 dnl Check for the tools that the makefiles require
454 AC_PATH_PROG(CMP, [cmp], [cmp])
455 AC_PATH_PROG(CP, [cp], [cp])
456 AC_PATH_PROG(DATE, [date], [date])
457 AC_PATH_PROG(FIND, [find], [find])
458 AC_PATH_PROG(GREP, [grep], [grep])
459 AC_PATH_PROG(MKDIR,[mkdir],[mkdir])
460 AC_PATH_PROG(MV, [mv], [mv])
462 AC_PATH_PROG(RM, [rm], [rm])
463 AC_PATH_PROG(SED, [sed], [sed])
464 AC_PATH_PROG(TAR, [tar], [gtar])
465 AC_PATH_PROG(BINPWD,[pwd], [pwd])
467 dnl Looking for misc. graph plotting software
468 AC_PATH_PROG(GRAPHVIZ, [Graphviz], [echo Graphviz])
469 if test "$GRAPHVIZ" != "echo Graphviz" ; then
470 AC_DEFINE([HAVE_GRAPHVIZ],[1],[Define if the Graphviz program is available])
471 dnl If we're targeting for mingw we should emit windows paths, not msys
472 if test "$llvm_cv_os_type" = "MingW" ; then
473 GRAPHVIZ=`echo $GRAPHVIZ | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
475 AC_DEFINE_UNQUOTED([LLVM_PATH_GRAPHVIZ],"$GRAPHVIZ${EXEEXT}",
476 [Define to path to Graphviz program if found or 'echo Graphviz' otherwise])
478 AC_PATH_PROG(DOT, [dot], [echo dot])
479 if test "$DOT" != "echo dot" ; then
480 AC_DEFINE([HAVE_DOT],[1],[Define if the dot program is available])
481 dnl If we're targeting for mingw we should emit windows paths, not msys
482 if test "$llvm_cv_os_type" = "MingW" ; then
483 DOT=`echo $DOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
485 AC_DEFINE_UNQUOTED([LLVM_PATH_DOT],"$DOT${EXEEXT}",
486 [Define to path to dot program if found or 'echo dot' otherwise])
488 AC_PATH_PROGS(GV, [gv gsview32], [echo gv])
489 if test "$GV" != "echo gv" ; then
490 AC_DEFINE([HAVE_GV],[1],[Define if the gv program is available])
491 dnl If we're targeting for mingw we should emit windows paths, not msys
492 if test "$llvm_cv_os_type" = "MingW" ; then
493 GV=`echo $GV | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
495 AC_DEFINE_UNQUOTED([LLVM_PATH_GV],"$GV${EXEEXT}",
496 [Define to path to gv program if found or 'echo gv' otherwise])
498 AC_PATH_PROG(DOTTY, [dotty], [echo dotty])
499 if test "$DOTTY" != "echo dotty" ; then
500 AC_DEFINE([HAVE_DOTTY],[1],[Define if the dotty program is available])
501 dnl If we're targeting for mingw we should emit windows paths, not msys
502 if test "$llvm_cv_os_type" = "MingW" ; then
503 DOTTY=`echo $DOTTY | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
505 AC_DEFINE_UNQUOTED([LLVM_PATH_DOTTY],"$DOTTY${EXEEXT}",
506 [Define to path to dotty program if found or 'echo dotty' otherwise])
509 dnl Look for a sufficiently recent version of Perl.
510 LLVM_PROG_PERL([5.006])
512 if test x"$PERL" = xnone; then
513 AC_SUBST(HAVE_PERL,0)
514 AC_MSG_ERROR([perl is required but was not found, please install it])
516 AC_SUBST(HAVE_PERL,1)
519 dnl Find the install program
522 dnl Checks for documentation and testing tools that we can do without. If these
523 dnl are not found then they are set to "true" which always succeeds but does
524 dnl nothing. This just lets the build output show that we could have done
525 dnl something if the tool was available.
526 AC_PATH_PROG(BZIP2,[bzip2],[echo "Skipped: bzip2 not found"])
527 AC_PATH_PROG(DOXYGEN,[doxygen],[echo "Skipped: doxygen not found"])
528 AC_PATH_PROG(GROFF,[groff],[echo "Skipped: groff not found"])
529 AC_PATH_PROG(GZIP,[gzip],[echo "Skipped: gzip not found"])
530 AC_PATH_PROG(POD2HTML,[pod2html],[echo "Skipped: pod2html not found"])
531 AC_PATH_PROG(POD2MAN,[pod2man],[echo "Skipped: pod2man not found"])
532 AC_PATH_PROG(RUNTEST,[runtest],[echo "Skipped: runtest not found"])
534 AC_PATH_PROG(ZIP,[zip],[echo "Skipped: zip not found"])
535 AC_PATH_PROG(OCAMLC,[ocamlc],[echo "Skipped: ocamlc not found"])
536 AC_PATH_PROG(OCAMLOPT,[ocamlopt],[echo "Skipped: ocamlopt not found"])
537 AC_PATH_PROG(OCAMLDEP,[ocamldep],[echo "Skipped: ocamldep not found"])
539 dnl Determine if the linker supports the -R option.
542 dnl Check for libtool and the library that has dlopen function (which must come
543 dnl before the AC_PROG_LIBTOOL check in order to enable dlopening libraries with
549 if test "$lt_cv_dlopen_self" = "yes" ; then
550 AC_DEFINE([CAN_DLOPEN_SELF],[1],
551 [Define if dlopen(0) will open the symbols of the program])
554 if test "$WITH_LLVMGCCDIR" = "default" ; then
555 LLVMGCC="llvm-gcc${EXEEXT}"
556 LLVMGXX="llvm-g++${EXEEXT}"
557 AC_PATH_PROG(LLVMGCC, $LLVMGCC, [])
558 AC_PATH_PROG(LLVMGXX, $LLVMGXX, [])
560 LLVMGCC="$WITH_LLVMGCCDIR/bin/llvm-gcc${EXEEXT}"
561 LLVMGXX="$WITH_LLVMGCCDIR/bin/llvm-g++${EXEEXT}"
562 AC_SUBST(LLVMGCC,$LLVMGCC)
563 AC_SUBST(LLVMGXX,$LLVMGXX)
566 AC_MSG_CHECKING([tool compatibility])
568 dnl Ensure that compilation tools are GCC or a GNU compatible compiler such as
569 dnl ICC; we use GCC specific options in the makefiles so the compiler needs
570 dnl to support those options.
571 dnl "icc" emits gcc signatures
572 dnl "icc -no-gcc" emits no gcc signature BUT is still compatible
584 if test "$GCC" != "yes" && test "$ICC" != "yes"
586 AC_MSG_ERROR([gcc|icc required but not found])
589 dnl Ensure that compilation tools are GCC; we use GCC specific extensions
590 if test "$GXX" != "yes" && test "$IXX" != "yes"
592 AC_MSG_ERROR([g++|icc required but not found])
595 dnl Verify that GCC is version 3.0 or higher
596 if test "$GCC" = "yes"
598 gccmajor=`$CC --version | head -n 1 | sed 's/[[^0-9]]*\([[0-9.]]\).*/\1/'`
599 if test "$gccmajor" -lt "3"
601 AC_MSG_ERROR([gcc 3.x required, but you have a lower version])
605 dnl Check for GNU Make. We use its extensions, so don't build without it
606 if test -z "$llvm_cv_gnu_make_command"
608 AC_MSG_ERROR([GNU Make required but not found])
611 dnl Tool compatibility is okay if we make it here.
614 dnl===-----------------------------------------------------------------------===
616 dnl=== SECTION 5: Check for libraries
618 dnl===-----------------------------------------------------------------------===
620 dnl libelf is for sparc only; we can ignore it if we don't have it
621 AC_CHECK_LIB(elf, elf_begin)
623 if test "$llvm_cv_os_type" = "MingW" ; then
624 AC_CHECK_LIB(imagehlp, main)
625 AC_CHECK_LIB(psapi, main)
628 dnl lt_dlopen may be required for plugin support.
629 AC_SEARCH_LIBS(lt_dlopen,ltdl,AC_DEFINE([HAVE_LT_DLOPEN],[1],
630 [Define if lt_dlopen() is available on this platform]),
631 AC_MSG_WARN([lt_dlopen() not found - plugin support might
634 dnl dlopen() is required for plugin support.
635 AC_SEARCH_LIBS(dlopen,dl,AC_DEFINE([HAVE_DLOPEN],[1],
636 [Define if dlopen() is available on this platform.]),
637 AC_MSG_WARN([dlopen() not found - disabling plugin support]))
639 dnl mallinfo is optional; the code can compile (minus features) without it
640 AC_SEARCH_LIBS(mallinfo,malloc,AC_DEFINE([HAVE_MALLINFO],[1],
641 [Define if mallinfo() is available on this platform.]))
643 dnl pthread locking functions are optional - but llvm will not be thread-safe
645 if test "$ENABLE_THREADS" -eq 1 ; then
646 AC_CHECK_LIB(pthread,pthread_mutex_init)
647 AC_SEARCH_LIBS(pthread_mutex_lock,pthread,
648 AC_DEFINE([HAVE_PTHREAD_MUTEX_LOCK],[1],
649 [Have pthread_mutex_lock]))
652 dnl Allow extra x86-disassembler library
654 AS_HELP_STRING([--with-udis86=<path>],
655 [Use udis86 external x86 disassembler library]),
657 AC_SUBST(USE_UDIS86, [1])
660 *) LDFLAGS="$LDFLAGS -L${withval}" ;;
662 AC_CHECK_LIB(udis86, ud_init, [], [
663 echo "Error! You need to have libudis86 around."
667 AC_SUBST(USE_UDIS86, [0]))
668 AC_DEFINE_UNQUOTED([USE_UDIS86],$USE_UDIS86,
669 [Define if use udis86 library])
671 dnl===-----------------------------------------------------------------------===
673 dnl=== SECTION 6: Check for header files
675 dnl===-----------------------------------------------------------------------===
677 dnl First, use autoconf provided macros for specific headers that we need
678 dnl We don't check for ancient stuff or things that are guaranteed to be there
679 dnl by the C++ standard. We always use the <cfoo> versions of <foo.h> C headers.
680 dnl Generally we're looking for POSIX headers.
682 AC_HEADER_MMAP_ANONYMOUS
688 AC_CHECK_HEADERS([dlfcn.h execinfo.h fcntl.h inttypes.h limits.h link.h])
689 AC_CHECK_HEADERS([malloc.h setjmp.h signal.h stdint.h unistd.h utime.h])
690 AC_CHECK_HEADERS([windows.h])
691 AC_CHECK_HEADERS([sys/mman.h sys/param.h sys/resource.h sys/time.h])
692 AC_CHECK_HEADERS([sys/types.h malloc/malloc.h mach/mach.h])
693 if test "$ENABLE_THREADS" -eq 1 ; then
694 AC_CHECK_HEADERS(pthread.h,
695 AC_SUBST(HAVE_PTHREAD, 1),
696 AC_SUBST(HAVE_PTHREAD, 0))
698 AC_SUBST(HAVE_PTHREAD, 0)
701 dnl===-----------------------------------------------------------------------===
703 dnl=== SECTION 7: Check for types and structures
705 dnl===-----------------------------------------------------------------------===
712 AC_CHECK_TYPES([int64_t],,AC_MSG_ERROR([Type int64_t required but not found]))
713 AC_CHECK_TYPES([uint64_t],,
714 AC_CHECK_TYPES([u_int64_t],,
715 AC_MSG_ERROR([Type uint64_t or u_int64_t required but not found])))
717 dnl===-----------------------------------------------------------------------===
719 dnl=== SECTION 8: Check for specific functions needed
721 dnl===-----------------------------------------------------------------------===
723 AC_CHECK_FUNCS([backtrace ceilf floorf roundf rintf nearbyintf getcwd ])
724 AC_CHECK_FUNCS([powf fmodf strtof round ])
725 AC_CHECK_FUNCS([getpagesize getrusage getrlimit setrlimit gettimeofday ])
726 AC_CHECK_FUNCS([isatty mkdtemp mkstemp ])
727 AC_CHECK_FUNCS([mktemp realpath sbrk setrlimit strdup strerror strerror_r ])
728 AC_CHECK_FUNCS([strtoll strtoq sysconf malloc_zone_statistics ])
729 AC_CHECK_FUNCS([setjmp longjmp sigsetjmp siglongjmp])
734 dnl Check for variations in the Standard C++ library and STL. These macros are
735 dnl provided by LLVM in the autoconf/m4 directory.
738 AC_CXX_HAVE_STD_ITERATOR
739 AC_CXX_HAVE_BI_ITERATOR
740 AC_CXX_HAVE_FWD_ITERATOR
744 dnl Check for mmap support.We also need to know if /dev/zero is required to
745 dnl be opened for allocating RWX memory.
746 dnl Make sure we aren't attempting to configure for an unknown system
747 if test "$llvm_cv_platform_type" = "Unix" ; then
750 AC_NEED_DEV_ZERO_FOR_MMAP
752 if test "$ac_cv_func_mmap_fixed_mapped" = "no"
754 AC_MSG_WARN([mmap() of a fixed address required but not supported])
756 if test "$ac_cv_func_mmap_file" = "no"
758 AC_MSG_WARN([mmap() of files required but not found])
762 dnl===-----------------------------------------------------------------------===
764 dnl=== SECTION 9: Additional checks, variables, etc.
766 dnl===-----------------------------------------------------------------------===
768 dnl Check, whether __dso_handle is present
769 AC_CHECK_FUNCS([__dso_handle])
771 dnl See if the llvm-gcc executable can compile to LLVM assembly
772 AC_CACHE_CHECK([whether llvm-gcc is sane],[llvm_cv_llvmgcc_sanity],
773 [llvm_cv_llvmgcc_sanity="no"
774 if test -x "$LLVMGCC" ; then
775 cp /dev/null conftest.c
776 "$LLVMGCC" -emit-llvm -S -o - conftest.c | \
777 grep 'target datalayout =' > /dev/null 2>&1
778 if test $? -eq 0 ; then
779 llvm_cv_llvmgcc_sanity="yes"
784 dnl Since we have a sane llvm-gcc, identify it and its sub-tools
785 if test "$llvm_cv_llvmgcc_sanity" = "yes" ; then
786 AC_MSG_CHECKING([llvm-gcc component support])
787 llvmcc1path=`"$LLVMGCC" --print-prog-name=cc1`
788 AC_SUBST(LLVMCC1,$llvmcc1path)
789 llvmcc1pluspath=`"$LLVMGCC" --print-prog-name=cc1plus`
790 AC_SUBST(LLVMCC1PLUS,$llvmcc1pluspath)
791 llvmgccdir=`echo "$llvmcc1path" | sed 's,/libexec/.*,,'`
792 AC_SUBST(LLVMGCCDIR,$llvmgccdir)
793 llvmgcclibexec=`echo "$llvmcc1path" | sed 's,/cc1,,'`
794 AC_SUBST(LLVMGCCLIBEXEC,$llvmgcclibexec)
795 llvmgccversion=[`"$LLVMGCC" -dumpversion 2>&1 | sed 's/^\([0-9.]*\).*/\1/'`]
796 llvmgccmajvers=[`echo $llvmgccversion | sed 's/^\([0-9]\).*/\1/'`]
797 AC_SUBST(LLVMGCC_VERSION,$llvmgccversion)
798 AC_SUBST(LLVMGCC_MAJVERS,$llvmgccmajvers)
799 llvmgcclangs=[`"$LLVMGCC" -v --help 2>&1 | grep '^Configured with:' | sed 's/^.*--enable-languages=\([^ -]*\).*/\1/'`]
800 AC_SUBST(LLVMGCC_LANGS,$llvmgcclangs)
804 dnl Propagate the shared library extension that the libltdl checks did to
805 dnl the Makefiles so we can use it there too
806 AC_SUBST(SHLIBEXT,$libltdl_cv_shlibext)
808 # Translate the various configuration directories and other basic
809 # information into substitutions that will end up in Makefile.config.in
810 # that these configured values can be used by the makefiles
811 if test "${prefix}" = "NONE" ; then
814 eval LLVM_PREFIX="${prefix}";
815 eval LLVM_BINDIR="${prefix}/bin";
816 eval LLVM_LIBDIR="${prefix}/lib";
817 eval LLVM_DATADIR="${prefix}/share/llvm";
818 eval LLVM_DOCSDIR="${prefix}/docs/llvm";
819 eval LLVM_ETCDIR="${prefix}/etc/llvm";
820 eval LLVM_INCLUDEDIR="${prefix}/include";
821 eval LLVM_INFODIR="${prefix}/info";
822 eval LLVM_MANDIR="${prefix}/man";
823 LLVM_CONFIGTIME=`date`
824 AC_SUBST(LLVM_PREFIX)
825 AC_SUBST(LLVM_BINDIR)
826 AC_SUBST(LLVM_LIBDIR)
827 AC_SUBST(LLVM_DATADIR)
828 AC_SUBST(LLVM_DOCSDIR)
829 AC_SUBST(LLVM_ETCDIR)
830 AC_SUBST(LLVM_INCLUDEDIR)
831 AC_SUBST(LLVM_INFODIR)
832 AC_SUBST(LLVM_MANDIR)
833 AC_SUBST(LLVM_CONFIGTIME)
835 # Place the various directores into the config.h file as #defines so that we
836 # can know about the installation paths within LLVM.
837 AC_DEFINE_UNQUOTED(LLVM_PREFIX,"$LLVM_PREFIX",
838 [Installation prefix directory])
839 AC_DEFINE_UNQUOTED(LLVM_BINDIR, "$LLVM_BINDIR",
840 [Installation directory for binary executables])
841 AC_DEFINE_UNQUOTED(LLVM_LIBDIR, "$LLVM_LIBDIR",
842 [Installation directory for libraries])
843 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DATADIR",
844 [Installation directory for data files])
845 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DOCSDIR",
846 [Installation directory for documentation])
847 AC_DEFINE_UNQUOTED(LLVM_ETCDIR, "$LLVM_ETCDIR",
848 [Installation directory for config files])
849 AC_DEFINE_UNQUOTED(LLVM_INCLUDEDIR, "$LLVM_INCLUDEDIR",
850 [Installation directory for include files])
851 AC_DEFINE_UNQUOTED(LLVM_INFODIR, "$LLVM_INFODIR",
852 [Installation directory for .info files])
853 AC_DEFINE_UNQUOTED(LLVM_MANDIR, "$LLVM_MANDIR",
854 [Installation directory for man pages])
855 AC_DEFINE_UNQUOTED(LLVM_CONFIGTIME, "$LLVM_CONFIGTIME",
856 [Time at which LLVM was configured])
858 dnl===-----------------------------------------------------------------------===
860 dnl=== SECTION 10: Specify the output files and generate it
862 dnl===-----------------------------------------------------------------------===
864 dnl Configure header files
865 dnl WARNING: dnl If you add or remove any of the following config headers, then
866 dnl you MUST also update Makefile.rules so that the variable FilesToConfig
867 dnl contains the same list of files as AC_CONFIG_HEADERS below. This ensures the
868 dnl files can be updated automatically when their *.in sources change.
869 AC_CONFIG_HEADERS([include/llvm/Config/config.h])
870 AC_CONFIG_HEADERS([include/llvm/Support/DataTypes.h])
871 AC_CONFIG_HEADERS([include/llvm/ADT/hash_map])
872 AC_CONFIG_HEADERS([include/llvm/ADT/hash_set])
873 AC_CONFIG_HEADERS([include/llvm/ADT/iterator])
875 dnl Configure the makefile's configuration data
876 AC_CONFIG_FILES([Makefile.config])
878 dnl Configure the RPM spec file for LLVM
879 AC_CONFIG_FILES([llvm.spec])
881 dnl Configure doxygen's configuration file
882 AC_CONFIG_FILES([docs/doxygen.cfg])
884 dnl Do the first stage of configuration for llvm-config.in.
885 AC_CONFIG_FILES([tools/llvm-config/llvm-config.in])
887 dnl Do special configuration of Makefiles
888 AC_CONFIG_COMMANDS([setup],,[llvm_src="${srcdir}"])
889 AC_CONFIG_MAKEFILE(Makefile)
890 AC_CONFIG_MAKEFILE(Makefile.common)
891 AC_CONFIG_MAKEFILE(examples/Makefile)
892 AC_CONFIG_MAKEFILE(lib/Makefile)
893 AC_CONFIG_MAKEFILE(runtime/Makefile)
894 AC_CONFIG_MAKEFILE(test/Makefile)
895 AC_CONFIG_MAKEFILE(test/Makefile.tests)
896 AC_CONFIG_MAKEFILE(tools/Makefile)
897 AC_CONFIG_MAKEFILE(utils/Makefile)
898 AC_CONFIG_MAKEFILE(projects/Makefile)
899 AC_CONFIG_MAKEFILE(bindings/Makefile)
900 AC_CONFIG_MAKEFILE(bindings/ocaml/Makefile.ocaml)
902 dnl Finally, crank out the output