1 dnl === configure.ac --------------------------------------------------------===
2 dnl The LLVM Compiler Infrastructure
4 dnl This file is distributed under the University of Illinois Open Source
5 dnl 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]],[[2.5svn]],[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) 2003-2008 University of Illinois at Urbana-Champaign."])
39 AC_COPYRIGHT([Copyright (c) 2003-2008 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 is the old name of the test-suite, kept here for backwards
75 llvm-test) AC_CONFIG_SUBDIRS([projects/llvm-test]) ;;
76 test-suite) AC_CONFIG_SUBDIRS([projects/test-suite]) ;;
77 llvm-reopt) AC_CONFIG_SUBDIRS([projects/llvm-reopt]);;
78 llvm-gcc) AC_CONFIG_SUBDIRS([projects/llvm-gcc]) ;;
79 llvm-java) AC_CONFIG_SUBDIRS([projects/llvm-java]) ;;
80 llvm-tv) AC_CONFIG_SUBDIRS([projects/llvm-tv]) ;;
81 llvm-poolalloc) AC_CONFIG_SUBDIRS([projects/llvm-poolalloc]) ;;
82 poolalloc) AC_CONFIG_SUBDIRS([projects/poolalloc]) ;;
83 llvm-kernel) AC_CONFIG_SUBDIRS([projects/llvm-kernel]) ;;
85 AC_MSG_WARN([Unknown project (${i}) won't be configured automatically])
91 dnl===-----------------------------------------------------------------------===
93 dnl=== SECTION 2: Architecture, target, and host checks
95 dnl===-----------------------------------------------------------------------===
97 dnl Check the target for which we're compiling and the host that will do the
98 dnl compilations. This will tell us which LLVM compiler will be used for
99 dnl compiling SSA into object code. This needs to be done early because
100 dnl following tests depend on it.
103 dnl Determine the platform type and cache its value. This helps us configure
104 dnl the System library to the correct build platform.
105 AC_CACHE_CHECK([type of operating system we're going to host on],
109 llvm_cv_link_all_option="-Wl,--whole-archive"
110 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
111 llvm_cv_os_type="AIX"
112 llvm_cv_platform_type="Unix" ;;
114 llvm_cv_link_all_option="-Wl,--whole-archive"
115 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
116 llvm_cv_os_type="IRIX"
117 llvm_cv_platform_type="Unix" ;;
119 llvm_cv_link_all_option="-Wl,--whole-archive"
120 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
121 llvm_cv_os_type="Cygwin"
122 llvm_cv_platform_type="Unix" ;;
124 llvm_cv_link_all_option="-Wl,-all_load"
125 llvm_cv_no_link_all_option="-Wl,-noall_load"
126 llvm_cv_os_type="Darwin"
127 llvm_cv_platform_type="Unix" ;;
129 llvm_cv_link_all_option="-Wl,--whole-archive"
130 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
131 llvm_cv_os_type="FreeBSD"
132 llvm_cv_platform_type="Unix" ;;
134 llvm_cv_link_all_option="-Wl,--whole-archive"
135 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
136 llvm_cv_os_type="OpenBSD"
137 llvm_cv_platform_type="Unix" ;;
139 llvm_cv_link_all_option="-Wl,--whole-archive"
140 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
141 llvm_cv_os_type="NetBSD"
142 llvm_cv_platform_type="Unix" ;;
144 llvm_cv_link_all_option="-Wl,--whole-archive"
145 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
146 llvm_cv_os_type="DragonFly"
147 llvm_cv_platform_type="Unix" ;;
149 llvm_cv_link_all_option="-Wl,--whole-archive"
150 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
151 llvm_cv_os_type="HP-UX"
152 llvm_cv_platform_type="Unix" ;;
154 llvm_cv_link_all_option="-Wl,--whole-archive"
155 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
156 llvm_cv_os_type="Interix"
157 llvm_cv_platform_type="Unix" ;;
159 llvm_cv_link_all_option="-Wl,--whole-archive"
160 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
161 llvm_cv_os_type="Linux"
162 llvm_cv_platform_type="Unix" ;;
164 llvm_cv_link_all_option="-Wl,-z,allextract"
165 llvm_cv_no_link_all_option="-Wl,-z,defaultextract"
166 llvm_cv_os_type="SunOS"
167 llvm_cv_platform_type="Unix" ;;
169 llvm_cv_link_all_option="-Wl,--whole-archive"
170 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
171 llvm_cv_os_type="Win32"
172 llvm_cv_platform_type="Win32" ;;
174 llvm_cv_link_all_option="-Wl,--whole-archive"
175 llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
176 llvm_cv_os_type="MingW"
177 llvm_cv_platform_type="Win32" ;;
179 llvm_cv_link_all_option=""
180 llvm_cv_no_link_all_option=""
181 llvm_cv_os_type="Unknown"
182 llvm_cv_platform_type="Unknown" ;;
185 dnl Make sure we aren't attempting to configure for an unknown system
186 if test "$llvm_cv_os_type" = "Unknown" ; then
187 AC_MSG_ERROR([Operating system is unknown, configure can't continue])
190 dnl Set the "OS" Makefile variable based on the platform type so the
191 dnl makefile can configure itself to specific build hosts
192 AC_SUBST(OS,$llvm_cv_os_type)
194 dnl Set the LINKALL and NOLINKALL Makefile variables based on the platform
195 AC_SUBST(LINKALL,$llvm_cv_link_all_option)
196 AC_SUBST(NOLINKALL,$llvm_cv_no_link_all_option)
198 dnl Set the "LLVM_ON_*" variables based on llvm_cvs_platform_type
199 dnl This is used by lib/System to determine the basic kind of implementation
201 case $llvm_cv_platform_type in
203 AC_DEFINE([LLVM_ON_UNIX],[1],[Define if this is Unixish platform])
204 AC_SUBST(LLVM_ON_UNIX,[1])
205 AC_SUBST(LLVM_ON_WIN32,[0])
208 AC_DEFINE([LLVM_ON_WIN32],[1],[Define if this is Win32ish platform])
209 AC_SUBST(LLVM_ON_UNIX,[0])
210 AC_SUBST(LLVM_ON_WIN32,[1])
214 dnl Determine what our target architecture is and configure accordingly.
215 dnl This will allow Makefiles to make a distinction between the hardware and
217 AC_CACHE_CHECK([target architecture],[llvm_cv_target_arch],
219 i?86-*) llvm_cv_target_arch="x86" ;;
220 amd64-* | x86_64-*) llvm_cv_target_arch="x86_64" ;;
221 sparc*-*) llvm_cv_target_arch="Sparc" ;;
222 powerpc*-*) llvm_cv_target_arch="PowerPC" ;;
223 alpha*-*) llvm_cv_target_arch="Alpha" ;;
224 ia64-*) llvm_cv_target_arch="IA64" ;;
225 arm-*) llvm_cv_target_arch="ARM" ;;
226 mips-*) llvm_cv_target_arch="Mips" ;;
227 pic16-*) llvm_cv_target_arch="PIC16" ;;
228 *) llvm_cv_target_arch="Unknown" ;;
231 if test "$llvm_cv_target_arch" = "Unknown" ; then
232 AC_MSG_WARN([Configuring LLVM for an unknown target archicture])
235 dnl Define a substitution, ARCH, for the target architecture
236 AC_SUBST(ARCH,$llvm_cv_target_arch)
238 dnl Check for the endianness of the target
239 AC_C_BIGENDIAN(AC_SUBST([ENDIAN],[big]),AC_SUBST([ENDIAN],[little]))
241 dnl Check for build platform executable suffix if we're crosscompiling
242 if test "$cross_compiling" = yes; then
243 AC_SUBST(LLVM_CROSS_COMPILING, [1])
245 ac_build_prefix=${build_alias}-
246 AC_CHECK_PROG(BUILD_CXX, ${ac_build_prefix}g++, ${ac_build_prefix}g++)
247 if test -z "$BUILD_CXX"; then
248 AC_CHECK_PROG(BUILD_CXX, g++, g++)
249 if test -z "$BUILD_CXX"; then
250 AC_CHECK_PROG(BUILD_CXX, c++, c++, , , /usr/ucb/c++)
254 AC_SUBST(LLVM_CROSS_COMPILING, [0])
257 dnl Check to see if there's a "CVS" (or .svn) directory indicating that this
258 dnl build is being done from a checkout. This sets up several defaults for the
259 dnl command line switches. When we build with a CVS directory, we get a
260 dnl debug with assertions turned on. Without, we assume a source release and we
261 dnl get an optimized build without assertions. See --enable-optimized and
262 dnl --enable-assertions below
263 if test -d "CVS" -o -d "${srcdir}/CVS" -o -d ".svn" -o -d "${srcdir}/.svn"; then
266 AC_SUBST(CVSBUILD,[[CVSBUILD=1]])
272 dnl===-----------------------------------------------------------------------===
274 dnl=== SECTION 3: Command line arguments for the configure script.
276 dnl===-----------------------------------------------------------------------===
278 dnl --enable-optimized : check whether they want to do an optimized build:
279 AC_ARG_ENABLE(optimized, AS_HELP_STRING(
280 [--enable-optimized,Compile with optimizations enabled (default is NO)]),,enableval=$optimize)
281 if test ${enableval} = "no" ; then
282 AC_SUBST(ENABLE_OPTIMIZED,[[]])
284 AC_SUBST(ENABLE_OPTIMIZED,[[ENABLE_OPTIMIZED=1]])
287 dnl --enable-assertions : check whether they want to turn on assertions or not:
288 AC_ARG_ENABLE(assertions,AS_HELP_STRING(
289 [--enable-assertions,Compile with assertion checks enabled (default is YES)]),, enableval="yes")
290 if test ${enableval} = "yes" ; then
291 AC_SUBST(DISABLE_ASSERTIONS,[[]])
293 AC_SUBST(DISABLE_ASSERTIONS,[[DISABLE_ASSERTIONS=1]])
296 dnl --enable-expensive-checks : check whether they want to turn on expensive debug checks:
297 AC_ARG_ENABLE(expensive-checks,AS_HELP_STRING(
298 [--enable-expensive-checks,Compile with expensive debug checks enabled (default is NO)]),, enableval="no")
299 if test ${enableval} = "yes" ; then
300 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[ENABLE_EXPENSIVE_CHECKS=1]])
301 AC_SUBST(EXPENSIVE_CHECKS,[[yes]])
303 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[]])
304 AC_SUBST(EXPENSIVE_CHECKS,[[no]])
307 dnl --enable-debug-runtime : should runtime libraries have debug symbols?
308 AC_ARG_ENABLE(debug-runtime,
309 AS_HELP_STRING([--enable-debug-runtime,Build runtime libs with debug symbols (default is NO)]),,enableval=no)
310 if test ${enableval} = "no" ; then
311 AC_SUBST(DEBUG_RUNTIME,[[]])
313 AC_SUBST(DEBUG_RUNTIME,[[DEBUG_RUNTIME=1]])
316 dnl --enable-jit: check whether they want to enable the jit
318 AS_HELP_STRING(--enable-jit,
319 [Enable Just In Time Compiling (default is YES)]),,
321 if test ${enableval} = "no"
325 case "$llvm_cv_target_arch" in
326 x86) AC_SUBST(TARGET_HAS_JIT,1) ;;
327 Sparc) AC_SUBST(TARGET_HAS_JIT,0) ;;
328 PowerPC) AC_SUBST(TARGET_HAS_JIT,1) ;;
329 x86_64) AC_SUBST(TARGET_HAS_JIT,1) ;;
330 Alpha) AC_SUBST(TARGET_HAS_JIT,1) ;;
331 IA64) AC_SUBST(TARGET_HAS_JIT,0) ;;
332 ARM) AC_SUBST(TARGET_HAS_JIT,0) ;;
333 Mips) AC_SUBST(TARGET_HAS_JIT,0) ;;
334 PIC16) AC_SUBST(TARGET_HAS_JIT,0) ;;
335 *) AC_SUBST(TARGET_HAS_JIT,0) ;;
339 dnl Allow enablement of doxygen generated documentation
340 AC_ARG_ENABLE(doxygen,
341 AS_HELP_STRING([--enable-doxygen],
342 [Build doxygen documentation (default is NO)]),,
345 yes) AC_SUBST(ENABLE_DOXYGEN,[1]) ;;
346 no) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
347 default) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
348 *) AC_MSG_ERROR([Invalid setting for --enable-doxygen. Use "yes" or "no"]) ;;
351 dnl Allow disablement of threads
352 AC_ARG_ENABLE(threads,
353 AS_HELP_STRING([--enable-threads],
354 [Use threads if available (default is YES)]),,
357 yes) AC_SUBST(ENABLE_THREADS,[1]) ;;
358 no) AC_SUBST(ENABLE_THREADS,[0]) ;;
359 default) AC_SUBST(ENABLE_THREADS,[1]) ;;
360 *) AC_MSG_ERROR([Invalid setting for --enable-threads. Use "yes" or "no"]) ;;
362 AC_DEFINE_UNQUOTED([ENABLE_THREADS],$ENABLE_THREADS,[Define if threads enabled])
364 dnl Allow building with position independent code
366 AS_HELP_STRING([--enable-pic],
367 [Build LLVM with Position Independent Code (default is NO)]),,
370 yes) AC_SUBST(ENABLE_PIC,[1]) ;;
371 no) AC_SUBST(ENABLE_PIC,[0]) ;;
372 default) AC_SUBST(ENABLE_PIC,[0]) ;;
373 *) AC_MSG_ERROR([Invalid setting for --enable-pic. Use "yes" or "no"]) ;;
375 AC_DEFINE_UNQUOTED([ENABLE_PIC],$ENABLE_PIC,
376 [Define if position independent code is enabled])
378 dnl Allow specific targets to be specified for building (or not)
380 AC_ARG_ENABLE([targets],AS_HELP_STRING([--enable-targets],
381 [Build specific host targets: all,host-only,{target-name} (default=all)]),,
384 all) TARGETS_TO_BUILD="X86 Sparc PowerPC Alpha IA64 ARM Mips CellSPU PIC16 CBackend MSIL CppBackend" ;;
386 case "$llvm_cv_target_arch" in
387 x86) TARGETS_TO_BUILD="X86" ;;
388 x86_64) TARGETS_TO_BUILD="X86" ;;
389 Sparc) TARGETS_TO_BUILD="Sparc" ;;
390 PowerPC) TARGETS_TO_BUILD="PowerPC" ;;
391 Alpha) TARGETS_TO_BUILD="Alpha" ;;
392 IA64) TARGETS_TO_BUILD="IA64" ;;
393 ARM) TARGETS_TO_BUILD="ARM" ;;
394 Mips) TARGETS_TO_BUILD="Mips" ;;
395 CellSPU|SPU) TARGETS_TO_BUILD="CellSPU" ;;
396 PIC16) TARGETS_TO_BUILD="PIC16" ;;
397 *) AC_MSG_ERROR([Can not set target to build]) ;;
400 *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
402 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
403 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
404 sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
405 powerpc) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
406 alpha) TARGETS_TO_BUILD="Alpha $TARGETS_TO_BUILD" ;;
407 ia64) TARGETS_TO_BUILD="IA64 $TARGETS_TO_BUILD" ;;
408 arm) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
409 mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
410 spu) TARGETS_TO_BUILD="CellSPU $TARGETS_TO_BUILD" ;;
411 pic16) TARGETS_TO_BUILD="PIC16 $TARGETS_TO_BUILD" ;;
412 cbe) TARGETS_TO_BUILD="CBackend $TARGETS_TO_BUILD" ;;
413 msil) TARGETS_TO_BUILD="MSIL $TARGETS_TO_BUILD" ;;
414 cpp) TARGETS_TO_BUILD="CppBackend $TARGETS_TO_BUILD" ;;
415 *) AC_MSG_ERROR([Unrecognized target $a_target]) ;;
420 AC_SUBST(TARGETS_TO_BUILD,$TARGETS_TO_BUILD)
422 dnl Prevent the CBackend from using printf("%a") for floating point so older
423 dnl C compilers that cannot deal with the 0x0p+0 hex floating point format
424 dnl can still compile the CBE's output
425 AC_ARG_ENABLE([cbe-printf-a],AS_HELP_STRING([--enable-cbe-printf-a],
426 [Enable C Backend output with hex floating point via %a (default is YES)]),,
429 yes) AC_SUBST(ENABLE_CBE_PRINTF_A,[1]) ;;
430 no) AC_SUBST(ENABLE_CBE_PRINTF_A,[0]) ;;
431 default) AC_SUBST(ENABLE_CBE_PRINTF_A,[1]) ;;
432 *) AC_MSG_ERROR([Invalid setting for --enable-cbe-printf-a. Use "yes" or "no"]) ;;
434 AC_DEFINE_UNQUOTED([ENABLE_CBE_PRINTF_A],$ENABLE_CBE_PRINTF_A,
435 [Define if CBE is enabled for printf %a output])
437 dnl Allow a specific llvm-gcc/llvm-g++ pair to be used with this LLVM config.
438 AC_ARG_WITH(llvmgccdir,
439 AS_HELP_STRING([--with-llvmgccdir],
440 [Specify location of llvm-gcc install dir (default searches PATH)]),,
443 default) WITH_LLVMGCCDIR=default ;;
444 /* | [[A-Za-z]]:[[\\/]]*) WITH_LLVMGCCDIR=$withval ;;
445 *) AC_MSG_ERROR([Invalid path for --with-llvmgccdir. Provide full path]) ;;
448 dnl Allow a specific llvm-gcc compiler to be used with this LLVM config.
450 AS_HELP_STRING([--with-llvmgcc],
451 [Specify location of llvm-gcc driver (default searches PATH)]),
452 LLVMGCC=$with_llvmgcc
455 dnl Allow a specific llvm-g++ compiler to be used with this LLVM config.
457 AS_HELP_STRING([--with-llvmgxx],
458 [Specify location of llvm-g++ driver (default searches PATH)]),
459 LLVMGXX=$with_llvmgxx
462 if test -n "$LLVMGCC" && test -z "$LLVMGXX"; then
463 AC_MSG_ERROR([Invalid llvm-g++. Use --with-llvmgxx when --with-llvmgcc is used]);
466 if test -n "$LLVMGXX" && test -z "$LLVMGCC"; then
467 AC_MSG_ERROR([Invalid llvm-gcc. Use --with-llvmgcc when --with-llvmgxx is used]);
470 dnl Specify extra build options
471 AC_ARG_WITH(extra-options,
472 AS_HELP_STRING([--with-extra-options],
473 [Specify addtional options to compile LLVM with]),,
476 default) EXTRA_OPTIONS= ;;
477 *) EXTRA_OPTIONS=$withval ;;
479 AC_SUBST(EXTRA_OPTIONS,$EXTRA_OPTIONS)
481 dnl Allow specific bindings to be specified for building (or not)
482 AC_ARG_ENABLE([bindings],AS_HELP_STRING([--enable-bindings],
483 [Build specific language bindings: all,auto,none,{binding-name} (default=auto)]),,
487 yes | default | auto) BINDINGS_TO_BUILD="auto" ;;
488 all ) BINDINGS_TO_BUILD="ocaml" ;;
489 none | no) BINDINGS_TO_BUILD="" ;;
490 *)for a_binding in `echo $enableval|sed -e 's/,/ /g' ` ; do
492 ocaml) BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD" ;;
493 *) AC_MSG_ERROR([Unrecognized binding $a_binding]) ;;
499 dnl Allow the ocaml libdir to be overridden. This could go in a configure
500 dnl script for bindings/ocaml/configure, except that its auto value depends on
501 dnl OCAMLC, which is found here to support tests.
502 AC_ARG_WITH([ocaml-libdir],
503 [AS_HELP_STRING([--with-ocaml-libdir],
504 [Specify install location for ocaml bindings (default is stdlib)])],
508 auto) with_ocaml_libdir="$withval" ;;
509 /* | [[A-Za-z]]:[[\\/]]*) with_ocaml_libdir="$withval" ;;
510 *) AC_MSG_ERROR([Invalid path for --with-ocaml-libdir. Provide full path]) ;;
513 dnl===-----------------------------------------------------------------------===
515 dnl=== SECTION 4: Check for programs we need and that they are the right version
517 dnl===-----------------------------------------------------------------------===
519 dnl Check for compilation tools
529 dnl Check for the tools that the makefiles require
532 AC_PATH_PROG(CMP, [cmp], [cmp])
533 AC_PATH_PROG(CP, [cp], [cp])
534 AC_PATH_PROG(DATE, [date], [date])
535 AC_PATH_PROG(FIND, [find], [find])
536 AC_PATH_PROG(GREP, [grep], [grep])
537 AC_PATH_PROG(MKDIR,[mkdir],[mkdir])
538 AC_PATH_PROG(MV, [mv], [mv])
540 AC_PATH_PROG(RM, [rm], [rm])
541 AC_PATH_PROG(SED, [sed], [sed])
542 AC_PATH_PROG(TAR, [tar], [gtar])
543 AC_PATH_PROG(BINPWD,[pwd], [pwd])
545 dnl Looking for misc. graph plotting software
546 AC_PATH_PROG(GRAPHVIZ, [Graphviz], [echo Graphviz])
547 if test "$GRAPHVIZ" != "echo Graphviz" ; then
548 AC_DEFINE([HAVE_GRAPHVIZ],[1],[Define if the Graphviz program is available])
549 dnl If we're targeting for mingw we should emit windows paths, not msys
550 if test "$llvm_cv_os_type" = "MingW" ; then
551 GRAPHVIZ=`echo $GRAPHVIZ | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
553 AC_DEFINE_UNQUOTED([LLVM_PATH_GRAPHVIZ],"$GRAPHVIZ${EXEEXT}",
554 [Define to path to Graphviz program if found or 'echo Graphviz' otherwise])
556 AC_PATH_PROG(DOT, [dot], [echo dot])
557 if test "$DOT" != "echo dot" ; then
558 AC_DEFINE([HAVE_DOT],[1],[Define if the dot program is available])
559 dnl If we're targeting for mingw we should emit windows paths, not msys
560 if test "$llvm_cv_os_type" = "MingW" ; then
561 DOT=`echo $DOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
563 AC_DEFINE_UNQUOTED([LLVM_PATH_DOT],"$DOT${EXEEXT}",
564 [Define to path to dot program if found or 'echo dot' otherwise])
566 AC_PATH_PROGS(GV, [gv gsview32], [echo gv])
567 if test "$GV" != "echo gv" ; then
568 AC_DEFINE([HAVE_GV],[1],[Define if the gv program is available])
569 dnl If we're targeting for mingw we should emit windows paths, not msys
570 if test "$llvm_cv_os_type" = "MingW" ; then
571 GV=`echo $GV | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
573 AC_DEFINE_UNQUOTED([LLVM_PATH_GV],"$GV${EXEEXT}",
574 [Define to path to gv program if found or 'echo gv' otherwise])
576 AC_PATH_PROG(DOTTY, [dotty], [echo dotty])
577 if test "$DOTTY" != "echo dotty" ; then
578 AC_DEFINE([HAVE_DOTTY],[1],[Define if the dotty program is available])
579 dnl If we're targeting for mingw we should emit windows paths, not msys
580 if test "$llvm_cv_os_type" = "MingW" ; then
581 DOTTY=`echo $DOTTY | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
583 AC_DEFINE_UNQUOTED([LLVM_PATH_DOTTY],"$DOTTY${EXEEXT}",
584 [Define to path to dotty program if found or 'echo dotty' otherwise])
587 dnl Look for a sufficiently recent version of Perl.
588 LLVM_PROG_PERL([5.006])
590 if test x"$PERL" = xnone; then
591 AC_SUBST(HAVE_PERL,0)
592 AC_MSG_ERROR([perl is required but was not found, please install it])
594 AC_SUBST(HAVE_PERL,1)
597 dnl Find the install program
600 dnl Checks for documentation and testing tools that we can do without. If these
601 dnl are not found then they are set to "true" which always succeeds but does
602 dnl nothing. This just lets the build output show that we could have done
603 dnl something if the tool was available.
604 AC_PATH_PROG(BZIP2, [bzip2])
605 AC_PATH_PROG(DOXYGEN, [doxygen])
606 AC_PATH_PROG(GROFF, [groff])
607 AC_PATH_PROG(GZIP, [gzip])
608 AC_PATH_PROG(POD2HTML, [pod2html])
609 AC_PATH_PROG(POD2MAN, [pod2man])
610 AC_PATH_PROG(RUNTEST, [runtest])
612 AC_PATH_PROG(ZIP, [zip])
613 AC_PATH_PROGS(OCAMLC, [ocamlc.opt ocamlc])
614 AC_PATH_PROGS(OCAMLOPT, [ocamlopt.opt ocamlopt])
615 AC_PATH_PROGS(OCAMLDEP, [ocamldep.opt ocamldep])
616 AC_PATH_PROGS(OCAMLDOC, [ocamldoc.opt ocamldoc])
618 dnl Determine if the linker supports the -R option.
621 dnl Check for libtool and the library that has dlopen function (which must come
622 dnl before the AC_PROG_LIBTOOL check in order to enable dlopening libraries with
628 if test "$lt_cv_dlopen_self" = "yes" ; then
629 AC_DEFINE([CAN_DLOPEN_SELF],[1],
630 [Define if dlopen(0) will open the symbols of the program])
633 if test "$WITH_LLVMGCCDIR" = "default" ; then
634 LLVMGCC="llvm-gcc${EXEEXT}"
635 LLVMGXX="llvm-g++${EXEEXT}"
636 AC_PATH_PROG(LLVMGCC, $LLVMGCC, [])
637 AC_PATH_PROG(LLVMGXX, $LLVMGXX, [])
639 if test -z "$LLVMGCC"; then
640 LLVMGCC="$WITH_LLVMGCCDIR/bin/llvm-gcc${EXEEXT}"
642 if test -z "$LLVMGXX"; then
643 LLVMGXX="$WITH_LLVMGCCDIR/bin/llvm-g++${EXEEXT}"
645 AC_SUBST(LLVMGCC,$LLVMGCC)
646 AC_SUBST(LLVMGXX,$LLVMGXX)
649 AC_MSG_CHECKING([tool compatibility])
651 dnl Ensure that compilation tools are GCC or a GNU compatible compiler such as
652 dnl ICC; we use GCC specific options in the makefiles so the compiler needs
653 dnl to support those options.
654 dnl "icc" emits gcc signatures
655 dnl "icc -no-gcc" emits no gcc signature BUT is still compatible
667 if test "$GCC" != "yes" && test "$ICC" != "yes"
669 AC_MSG_ERROR([gcc|icc required but not found])
672 dnl Ensure that compilation tools are GCC; we use GCC specific extensions
673 if test "$GXX" != "yes" && test "$IXX" != "yes"
675 AC_MSG_ERROR([g++|icc required but not found])
678 dnl Verify that GCC is version 3.0 or higher
679 if test "$GCC" = "yes"
681 AC_COMPILE_IFELSE([[#if !defined(__GNUC__) || __GNUC__ < 3
682 #error Unsupported GCC version
684 ]], [], [AC_MSG_ERROR([gcc 3.x required, but you have a lower version])])
687 dnl Check for GNU Make. We use its extensions, so don't build without it
688 if test -z "$llvm_cv_gnu_make_command"
690 AC_MSG_ERROR([GNU Make required but not found])
693 dnl Tool compatibility is okay if we make it here.
696 dnl===-----------------------------------------------------------------------===
698 dnl=== SECTION 5: Check for libraries
700 dnl===-----------------------------------------------------------------------===
702 dnl libelf is for sparc only; we can ignore it if we don't have it
703 AC_CHECK_LIB(elf, elf_begin)
705 if test "$llvm_cv_os_type" = "MingW" ; then
706 AC_CHECK_LIB(imagehlp, main)
707 AC_CHECK_LIB(psapi, main)
710 dnl dlopen() is required for plugin support.
711 AC_SEARCH_LIBS(dlopen,dl,AC_DEFINE([HAVE_DLOPEN],[1],
712 [Define if dlopen() is available on this platform.]),
713 AC_MSG_WARN([dlopen() not found - disabling plugin support]))
715 dnl mallinfo is optional; the code can compile (minus features) without it
716 AC_SEARCH_LIBS(mallinfo,malloc,AC_DEFINE([HAVE_MALLINFO],[1],
717 [Define if mallinfo() is available on this platform.]))
719 dnl pthread locking functions are optional - but llvm will not be thread-safe
721 if test "$ENABLE_THREADS" -eq 1 ; then
722 AC_CHECK_LIB(pthread,pthread_mutex_init)
723 AC_SEARCH_LIBS(pthread_mutex_lock,pthread,
724 AC_DEFINE([HAVE_PTHREAD_MUTEX_LOCK],[1],
725 [Have pthread_mutex_lock]))
728 dnl Allow extra x86-disassembler library
730 AS_HELP_STRING([--with-udis86=<path>],
731 [Use udis86 external x86 disassembler library]),
733 AC_SUBST(USE_UDIS86, [1])
736 *) LDFLAGS="$LDFLAGS -L${withval}" ;;
738 AC_CHECK_LIB(udis86, ud_init, [], [
739 echo "Error! You need to have libudis86 around."
743 AC_SUBST(USE_UDIS86, [0]))
744 AC_DEFINE_UNQUOTED([USE_UDIS86],$USE_UDIS86,
745 [Define if use udis86 library])
747 dnl===-----------------------------------------------------------------------===
749 dnl=== SECTION 6: Check for header files
751 dnl===-----------------------------------------------------------------------===
753 dnl First, use autoconf provided macros for specific headers that we need
754 dnl We don't check for ancient stuff or things that are guaranteed to be there
755 dnl by the C++ standard. We always use the <cfoo> versions of <foo.h> C headers.
756 dnl Generally we're looking for POSIX headers.
758 AC_HEADER_MMAP_ANONYMOUS
764 AC_CHECK_HEADERS([dlfcn.h execinfo.h fcntl.h inttypes.h limits.h link.h])
765 AC_CHECK_HEADERS([malloc.h setjmp.h signal.h stdint.h unistd.h utime.h])
766 AC_CHECK_HEADERS([windows.h])
767 AC_CHECK_HEADERS([sys/mman.h sys/param.h sys/resource.h sys/time.h])
768 AC_CHECK_HEADERS([sys/types.h malloc/malloc.h mach/mach.h])
769 if test "$ENABLE_THREADS" -eq 1 ; then
770 AC_CHECK_HEADERS(pthread.h,
771 AC_SUBST(HAVE_PTHREAD, 1),
772 AC_SUBST(HAVE_PTHREAD, 0))
774 AC_SUBST(HAVE_PTHREAD, 0)
777 dnl===-----------------------------------------------------------------------===
779 dnl=== SECTION 7: Check for types and structures
781 dnl===-----------------------------------------------------------------------===
788 AC_CHECK_TYPES([int64_t],,AC_MSG_ERROR([Type int64_t required but not found]))
789 AC_CHECK_TYPES([uint64_t],,
790 AC_CHECK_TYPES([u_int64_t],,
791 AC_MSG_ERROR([Type uint64_t or u_int64_t required but not found])))
793 dnl===-----------------------------------------------------------------------===
795 dnl=== SECTION 8: Check for specific functions needed
797 dnl===-----------------------------------------------------------------------===
799 AC_CHECK_FUNCS([backtrace ceilf floorf roundf rintf nearbyintf getcwd ])
800 AC_CHECK_FUNCS([powf fmodf strtof round ])
801 AC_CHECK_FUNCS([getpagesize getrusage getrlimit setrlimit gettimeofday ])
802 AC_CHECK_FUNCS([isatty mkdtemp mkstemp ])
803 AC_CHECK_FUNCS([mktemp realpath sbrk setrlimit strdup strerror strerror_r ])
804 AC_CHECK_FUNCS([strtoll strtoq sysconf malloc_zone_statistics ])
805 AC_CHECK_FUNCS([setjmp longjmp sigsetjmp siglongjmp])
810 dnl Check for variations in the Standard C++ library and STL. These macros are
811 dnl provided by LLVM in the autoconf/m4 directory.
814 AC_CXX_HAVE_STD_ITERATOR
815 AC_CXX_HAVE_BI_ITERATOR
816 AC_CXX_HAVE_FWD_ITERATOR
820 dnl Check for mmap support.We also need to know if /dev/zero is required to
821 dnl be opened for allocating RWX memory.
822 dnl Make sure we aren't attempting to configure for an unknown system
823 if test "$llvm_cv_platform_type" = "Unix" ; then
826 AC_NEED_DEV_ZERO_FOR_MMAP
828 if test "$ac_cv_func_mmap_fixed_mapped" = "no"
830 AC_MSG_WARN([mmap() of a fixed address required but not supported])
832 if test "$ac_cv_func_mmap_file" = "no"
834 AC_MSG_WARN([mmap() of files required but not found])
838 dnl===-----------------------------------------------------------------------===
840 dnl=== SECTION 9: Additional checks, variables, etc.
842 dnl===-----------------------------------------------------------------------===
844 dnl Check, whether __dso_handle is present
845 AC_CHECK_FUNCS([__dso_handle])
847 dnl See if the llvm-gcc executable can compile to LLVM assembly
848 AC_CACHE_CHECK([whether llvm-gcc is sane],[llvm_cv_llvmgcc_sanity],
849 [llvm_cv_llvmgcc_sanity="no"
850 if test -x "$LLVMGCC" ; then
851 cp /dev/null conftest.c
852 "$LLVMGCC" -emit-llvm -S -o - conftest.c | \
853 grep 'target datalayout =' > /dev/null 2>&1
854 if test $? -eq 0 ; then
855 llvm_cv_llvmgcc_sanity="yes"
860 dnl Since we have a sane llvm-gcc, identify it and its sub-tools
861 if test "$llvm_cv_llvmgcc_sanity" = "yes" ; then
862 AC_MSG_CHECKING([llvm-gcc component support])
863 llvmcc1path=`"$LLVMGCC" --print-prog-name=cc1`
864 AC_SUBST(LLVMCC1,$llvmcc1path)
865 llvmcc1pluspath=`"$LLVMGCC" --print-prog-name=cc1plus`
866 AC_SUBST(LLVMCC1PLUS,$llvmcc1pluspath)
867 llvmgccdir=`echo "$llvmcc1path" | sed 's,/libexec/.*,,'`
868 AC_SUBST(LLVMGCCDIR,$llvmgccdir)
869 llvmgcclibexec=`echo "$llvmcc1path" | sed 's,/cc1,,'`
870 AC_SUBST(LLVMGCCLIBEXEC,$llvmgcclibexec)
871 llvmgccversion=[`"$LLVMGCC" -dumpversion 2>&1 | sed 's/^\([0-9.]*\).*/\1/'`]
872 llvmgccmajvers=[`echo $llvmgccversion | sed 's/^\([0-9]\).*/\1/'`]
873 AC_SUBST(LLVMGCC_VERSION,$llvmgccversion)
874 AC_SUBST(LLVMGCC_MAJVERS,$llvmgccmajvers)
875 llvmgcclangs=[`"$LLVMGCC" -v --help 2>&1 | grep '^Configured with:' | sed 's/^.*--enable-languages=\([^ ]*\).*/\1/'`]
876 AC_SUBST(LLVMGCC_LANGS,$llvmgcclangs)
880 dnl Propagate the shared library extension that the libltdl checks did to
881 dnl the Makefiles so we can use it there too
882 AC_SUBST(SHLIBEXT,$libltdl_cv_shlibext)
884 # Translate the various configuration directories and other basic
885 # information into substitutions that will end up in Makefile.config.in
886 # that these configured values can be used by the makefiles
887 if test "${prefix}" = "NONE" ; then
890 eval LLVM_PREFIX="${prefix}";
891 eval LLVM_BINDIR="${prefix}/bin";
892 eval LLVM_LIBDIR="${prefix}/lib";
893 eval LLVM_DATADIR="${prefix}/share/llvm";
894 eval LLVM_DOCSDIR="${prefix}/docs/llvm";
895 eval LLVM_ETCDIR="${prefix}/etc/llvm";
896 eval LLVM_INCLUDEDIR="${prefix}/include";
897 eval LLVM_INFODIR="${prefix}/info";
898 eval LLVM_MANDIR="${prefix}/man";
899 LLVM_CONFIGTIME=`date`
900 AC_SUBST(LLVM_PREFIX)
901 AC_SUBST(LLVM_BINDIR)
902 AC_SUBST(LLVM_LIBDIR)
903 AC_SUBST(LLVM_DATADIR)
904 AC_SUBST(LLVM_DOCSDIR)
905 AC_SUBST(LLVM_ETCDIR)
906 AC_SUBST(LLVM_INCLUDEDIR)
907 AC_SUBST(LLVM_INFODIR)
908 AC_SUBST(LLVM_MANDIR)
909 AC_SUBST(LLVM_CONFIGTIME)
911 # Place the various directores into the config.h file as #defines so that we
912 # can know about the installation paths within LLVM.
913 AC_DEFINE_UNQUOTED(LLVM_PREFIX,"$LLVM_PREFIX",
914 [Installation prefix directory])
915 AC_DEFINE_UNQUOTED(LLVM_BINDIR, "$LLVM_BINDIR",
916 [Installation directory for binary executables])
917 AC_DEFINE_UNQUOTED(LLVM_LIBDIR, "$LLVM_LIBDIR",
918 [Installation directory for libraries])
919 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DATADIR",
920 [Installation directory for data files])
921 AC_DEFINE_UNQUOTED(LLVM_DOCSDIR, "$LLVM_DOCSDIR",
922 [Installation directory for documentation])
923 AC_DEFINE_UNQUOTED(LLVM_ETCDIR, "$LLVM_ETCDIR",
924 [Installation directory for config files])
925 AC_DEFINE_UNQUOTED(LLVM_INCLUDEDIR, "$LLVM_INCLUDEDIR",
926 [Installation directory for include files])
927 AC_DEFINE_UNQUOTED(LLVM_INFODIR, "$LLVM_INFODIR",
928 [Installation directory for .info files])
929 AC_DEFINE_UNQUOTED(LLVM_MANDIR, "$LLVM_MANDIR",
930 [Installation directory for man pages])
931 AC_DEFINE_UNQUOTED(LLVM_CONFIGTIME, "$LLVM_CONFIGTIME",
932 [Time at which LLVM was configured])
933 AC_DEFINE_UNQUOTED(LLVM_HOSTTRIPLE, "$host",
934 [Host triple we were built on])
936 # Determine which bindings to build.
937 if test "$BINDINGS_TO_BUILD" = auto ; then
939 if test "x$OCAMLC" != x -a "x$OCAMLDEP" != x ; then
940 BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD"
943 AC_SUBST(BINDINGS_TO_BUILD,$BINDINGS_TO_BUILD)
945 # This isn't really configurey, but it avoids having to repeat the list in
947 AC_SUBST(ALL_BINDINGS,ocaml)
949 # Do any work necessary to ensure that bindings have what they need.
950 binding_prereqs_failed=0
951 for a_binding in $BINDINGS_TO_BUILD ; do
954 if test "x$OCAMLC" = x ; then
955 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlc not found. Try configure OCAMLC=/path/to/ocamlc])
956 binding_prereqs_failed=1
958 if test "x$OCAMLDEP" = x ; then
959 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamldep not found. Try configure OCAMLDEP=/path/to/ocamldep])
960 binding_prereqs_failed=1
962 if test "x$OCAMLOPT" = x ; then
963 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlopt not found. Try configure OCAMLOPT=/path/to/ocamlopt])
964 dnl ocamlopt is optional!
966 if test "x$with_ocaml_libdir" != xauto ; then
967 AC_SUBST(OCAML_LIBDIR,$with_ocaml_libdir)
969 ocaml_stdlib="`"$OCAMLC" -where`"
970 if test "$LLVM_PREFIX" '<' "$ocaml_stdlib" -a "$ocaml_stdlib" '<' "$LLVM_PREFIX~"
972 # ocaml stdlib is beneath our prefix; use stdlib
973 AC_SUBST(OCAML_LIBDIR,$ocaml_stdlib)
975 # ocaml stdlib is outside our prefix; use libdir/ocaml
976 AC_SUBST(OCAML_LIBDIR,$LLVM_LIBDIR/ocaml)
982 if test "$binding_prereqs_failed" = 1 ; then
983 AC_MSG_ERROR([Prequisites for bindings not satisfied. Fix them or use configure --disable-bindings.])
986 dnl Determine if the compiler supports -fvisibility-inlines-hidden.
987 AC_CXX_USE_VISIBILITY_INLINES_HIDDEN
989 dnl===-----------------------------------------------------------------------===
991 dnl=== SECTION 10: Specify the output files and generate it
993 dnl===-----------------------------------------------------------------------===
995 dnl Configure header files
996 dnl WARNING: dnl If you add or remove any of the following config headers, then
997 dnl you MUST also update Makefile.rules so that the variable FilesToConfig
998 dnl contains the same list of files as AC_CONFIG_HEADERS below. This ensures the
999 dnl files can be updated automatically when their *.in sources change.
1000 AC_CONFIG_HEADERS([include/llvm/Config/config.h])
1001 AC_CONFIG_HEADERS([include/llvm/Support/DataTypes.h])
1002 AC_CONFIG_HEADERS([include/llvm/ADT/hash_map.h])
1003 AC_CONFIG_HEADERS([include/llvm/ADT/hash_set.h])
1004 AC_CONFIG_HEADERS([include/llvm/ADT/iterator.h])
1006 dnl Configure the makefile's configuration data
1007 AC_CONFIG_FILES([Makefile.config])
1009 dnl Configure the RPM spec file for LLVM
1010 AC_CONFIG_FILES([llvm.spec])
1012 dnl Configure doxygen's configuration file
1013 AC_CONFIG_FILES([docs/doxygen.cfg])
1015 dnl Do the first stage of configuration for llvm-config.in.
1016 AC_CONFIG_FILES([tools/llvm-config/llvm-config.in])
1018 dnl Do special configuration of Makefiles
1019 AC_CONFIG_COMMANDS([setup],,[llvm_src="${srcdir}"])
1020 AC_CONFIG_MAKEFILE(Makefile)
1021 AC_CONFIG_MAKEFILE(Makefile.common)
1022 AC_CONFIG_MAKEFILE(examples/Makefile)
1023 AC_CONFIG_MAKEFILE(lib/Makefile)
1024 AC_CONFIG_MAKEFILE(runtime/Makefile)
1025 AC_CONFIG_MAKEFILE(test/Makefile)
1026 AC_CONFIG_MAKEFILE(test/Makefile.tests)
1027 AC_CONFIG_MAKEFILE(tools/Makefile)
1028 AC_CONFIG_MAKEFILE(utils/Makefile)
1029 AC_CONFIG_MAKEFILE(projects/Makefile)
1030 AC_CONFIG_MAKEFILE(bindings/Makefile)
1031 AC_CONFIG_MAKEFILE(bindings/ocaml/Makefile.ocaml)
1033 dnl Finally, crank out the output