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]],[[2.6svn]],[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 $llvm_cv_platform_type in
203 AC_DEFINE([LLVM_ON_UNIX],[1],[Define if this is Unixish platform])
204 AC_SUBST(LLVM_ON_UNIX,[1])
205 AC_SUBST(LLVM_ON_WIN32,[0])
208 AC_DEFINE([LLVM_ON_WIN32],[1],[Define if this is Win32ish platform])
209 AC_SUBST(LLVM_ON_UNIX,[0])
210 AC_SUBST(LLVM_ON_WIN32,[1])
214 dnl Determine what our target architecture is and configure accordingly.
215 dnl This will allow Makefiles to make a distinction between the hardware and
217 AC_CACHE_CHECK([target architecture],[llvm_cv_target_arch],
219 i?86-*) llvm_cv_target_arch="x86" ;;
220 amd64-* | x86_64-*) llvm_cv_target_arch="x86_64" ;;
221 sparc*-*) llvm_cv_target_arch="Sparc" ;;
222 powerpc*-*) llvm_cv_target_arch="PowerPC" ;;
223 alpha*-*) llvm_cv_target_arch="Alpha" ;;
224 ia64-*) llvm_cv_target_arch="IA64" ;;
225 arm*-*) llvm_cv_target_arch="ARM" ;;
226 mips-*) llvm_cv_target_arch="Mips" ;;
227 pic16-*) llvm_cv_target_arch="PIC16" ;;
228 xcore-*) llvm_cv_target_arch="XCore" ;;
229 msp430-*) llvm_cv_target_arch="MSP430" ;;
230 *) llvm_cv_target_arch="Unknown" ;;
233 if test "$llvm_cv_target_arch" = "Unknown" ; then
234 AC_MSG_WARN([Configuring LLVM for an unknown target archicture])
237 # Determine the LLVM native architecture for the target
238 case "$llvm_cv_target_arch" in
239 x86) LLVM_NATIVE_ARCH="X86" ;;
240 x86_64) LLVM_NATIVE_ARCH="X86" ;;
241 *) LLVM_NATIVE_ARCH="$llvm_cv_target_arch" ;;
244 dnl Define a substitution, ARCH, for the target architecture
245 AC_SUBST(ARCH,$llvm_cv_target_arch)
247 dnl Check for the endianness of the target
248 AC_C_BIGENDIAN(AC_SUBST([ENDIAN],[big]),AC_SUBST([ENDIAN],[little]))
250 dnl Check for build platform executable suffix if we're crosscompiling
251 if test "$cross_compiling" = yes; then
252 AC_SUBST(LLVM_CROSS_COMPILING, [1])
254 ac_build_prefix=${build_alias}-
255 AC_CHECK_PROG(BUILD_CXX, ${ac_build_prefix}g++, ${ac_build_prefix}g++)
256 if test -z "$BUILD_CXX"; then
257 AC_CHECK_PROG(BUILD_CXX, g++, g++)
258 if test -z "$BUILD_CXX"; then
259 AC_CHECK_PROG(BUILD_CXX, c++, c++, , , /usr/ucb/c++)
263 AC_SUBST(LLVM_CROSS_COMPILING, [0])
266 dnl Check to see if there's a "CVS" (or .svn or .git) directory indicating
267 dnl that this build is being done from a checkout. This sets up several
268 dnl defaults for the command line switches. When we build with a CVS directory,
269 dnl we get a debug with assertions turned on. Without, we assume a source
270 dnl release and we get an optimized build without assertions.
271 dnl See --enable-optimized and --enable-assertions below
272 if test -d "CVS" -o -d "${srcdir}/CVS" -o -d ".svn" -o -d "${srcdir}/.svn" -o -d ".git" -o -d "${srcdir}/.git"; then
275 AC_SUBST(CVSBUILD,[[CVSBUILD=1]])
281 dnl===-----------------------------------------------------------------------===
283 dnl=== SECTION 3: Command line arguments for the configure script.
285 dnl===-----------------------------------------------------------------------===
287 dnl --enable-optimized : check whether they want to do an optimized build:
288 AC_ARG_ENABLE(optimized, AS_HELP_STRING(
289 --enable-optimized,[Compile with optimizations enabled (default is NO)]),,enableval=$optimize)
290 if test ${enableval} = "no" ; then
291 AC_SUBST(ENABLE_OPTIMIZED,[[]])
293 AC_SUBST(ENABLE_OPTIMIZED,[[ENABLE_OPTIMIZED=1]])
296 dnl --enable-profiling : check whether they want to do a profile build:
297 AC_ARG_ENABLE(profiling, AS_HELP_STRING(
298 --enable-profiling,[Compile with profiling enabled (default is NO)]),,enableval="no")
299 if test ${enableval} = "no" ; then
300 AC_SUBST(ENABLE_PROFILING,[[]])
302 AC_SUBST(ENABLE_PROFILING,[[ENABLE_PROFILING=1]])
305 dnl --enable-assertions : check whether they want to turn on assertions or not:
306 AC_ARG_ENABLE(assertions,AS_HELP_STRING(
307 --enable-assertions,[Compile with assertion checks enabled (default is YES)]),, enableval="yes")
308 if test ${enableval} = "yes" ; then
309 AC_SUBST(DISABLE_ASSERTIONS,[[]])
311 AC_SUBST(DISABLE_ASSERTIONS,[[DISABLE_ASSERTIONS=1]])
314 dnl --enable-expensive-checks : check whether they want to turn on expensive debug checks:
315 AC_ARG_ENABLE(expensive-checks,AS_HELP_STRING(
316 --enable-expensive-checks,[Compile with expensive debug checks enabled (default is NO)]),, enableval="no")
317 if test ${enableval} = "yes" ; then
318 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[ENABLE_EXPENSIVE_CHECKS=1]])
319 AC_SUBST(EXPENSIVE_CHECKS,[[yes]])
321 AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[]])
322 AC_SUBST(EXPENSIVE_CHECKS,[[no]])
325 dnl --enable-debug-runtime : should runtime libraries have debug symbols?
326 AC_ARG_ENABLE(debug-runtime,
327 AS_HELP_STRING(--enable-debug-runtime,[Build runtime libs with debug symbols (default is NO)]),,enableval=no)
328 if test ${enableval} = "no" ; then
329 AC_SUBST(DEBUG_RUNTIME,[[]])
331 AC_SUBST(DEBUG_RUNTIME,[[DEBUG_RUNTIME=1]])
334 dnl --enable-jit: check whether they want to enable the jit
336 AS_HELP_STRING(--enable-jit,
337 [Enable Just In Time Compiling (default is YES)]),,
339 if test ${enableval} = "no"
343 case "$llvm_cv_target_arch" in
344 x86) AC_SUBST(TARGET_HAS_JIT,1) ;;
345 Sparc) AC_SUBST(TARGET_HAS_JIT,0) ;;
346 PowerPC) AC_SUBST(TARGET_HAS_JIT,1) ;;
347 x86_64) AC_SUBST(TARGET_HAS_JIT,1) ;;
348 Alpha) AC_SUBST(TARGET_HAS_JIT,1) ;;
349 IA64) AC_SUBST(TARGET_HAS_JIT,0) ;;
350 ARM) AC_SUBST(TARGET_HAS_JIT,0) ;;
351 Mips) AC_SUBST(TARGET_HAS_JIT,0) ;;
352 PIC16) AC_SUBST(TARGET_HAS_JIT,0) ;;
353 XCore) AC_SUBST(TARGET_HAS_JIT,0) ;;
354 MSP430) AC_SUBST(TARGET_HAS_JIT,0) ;;
355 *) AC_SUBST(TARGET_HAS_JIT,0) ;;
359 dnl Allow enablement of doxygen generated documentation
360 AC_ARG_ENABLE(doxygen,
361 AS_HELP_STRING([--enable-doxygen],
362 [Build doxygen documentation (default is NO)]),,
365 yes) AC_SUBST(ENABLE_DOXYGEN,[1]) ;;
366 no) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
367 default) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
368 *) AC_MSG_ERROR([Invalid setting for --enable-doxygen. Use "yes" or "no"]) ;;
371 dnl Allow disablement of threads
372 AC_ARG_ENABLE(threads,
373 AS_HELP_STRING([--enable-threads],
374 [Use threads if available (default is YES)]),,
377 yes) AC_SUBST(ENABLE_THREADS,[1]) ;;
378 no) AC_SUBST(ENABLE_THREADS,[0]) ;;
379 default) AC_SUBST(ENABLE_THREADS,[1]) ;;
380 *) AC_MSG_ERROR([Invalid setting for --enable-threads. Use "yes" or "no"]) ;;
382 AC_DEFINE_UNQUOTED([ENABLE_THREADS],$ENABLE_THREADS,[Define if threads enabled])
384 dnl Allow building without position independent code
386 AS_HELP_STRING([--enable-pic],
387 [Build LLVM with Position Independent Code (default is YES)]),,
390 yes) AC_SUBST(ENABLE_PIC,[1]) ;;
391 no) AC_SUBST(ENABLE_PIC,[0]) ;;
392 default) AC_SUBST(ENABLE_PIC,[1]) ;;
393 *) AC_MSG_ERROR([Invalid setting for --enable-pic. Use "yes" or "no"]) ;;
395 AC_DEFINE_UNQUOTED([ENABLE_PIC],$ENABLE_PIC,
396 [Define if position independent code is enabled])
398 dnl Allow specific targets to be specified for building (or not)
400 AC_ARG_ENABLE([targets],AS_HELP_STRING([--enable-targets],
401 [Build specific host targets: all,host-only,{target-name} (default=all)]),,
404 all) TARGETS_TO_BUILD="X86 Sparc PowerPC Alpha IA64 ARM Mips CellSPU PIC16 XCore MSP430 CBackend MSIL CppBackend" ;;
406 case "$llvm_cv_target_arch" in
407 x86) TARGETS_TO_BUILD="X86" ;;
408 x86_64) TARGETS_TO_BUILD="X86" ;;
409 Sparc) TARGETS_TO_BUILD="Sparc" ;;
410 PowerPC) TARGETS_TO_BUILD="PowerPC" ;;
411 Alpha) TARGETS_TO_BUILD="Alpha" ;;
412 IA64) TARGETS_TO_BUILD="IA64" ;;
413 ARM) TARGETS_TO_BUILD="ARM" ;;
414 Mips) TARGETS_TO_BUILD="Mips" ;;
415 CellSPU|SPU) TARGETS_TO_BUILD="CellSPU" ;;
416 PIC16) TARGETS_TO_BUILD="PIC16" ;;
417 XCore) TARGETS_TO_BUILD="XCore" ;;
418 MSP430) TARGETS_TO_BUILD="MSP430" ;;
419 *) AC_MSG_ERROR([Can not set target to build]) ;;
422 *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
424 x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
425 x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
426 sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
427 powerpc) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
428 alpha) TARGETS_TO_BUILD="Alpha $TARGETS_TO_BUILD" ;;
429 ia64) TARGETS_TO_BUILD="IA64 $TARGETS_TO_BUILD" ;;
430 arm) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
431 mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
432 spu) TARGETS_TO_BUILD="CellSPU $TARGETS_TO_BUILD" ;;
433 pic16) TARGETS_TO_BUILD="PIC16 $TARGETS_TO_BUILD" ;;
434 xcore) TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
435 msp430) TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;;
436 cbe) TARGETS_TO_BUILD="CBackend $TARGETS_TO_BUILD" ;;
437 msil) TARGETS_TO_BUILD="MSIL $TARGETS_TO_BUILD" ;;
438 cpp) TARGETS_TO_BUILD="CppBackend $TARGETS_TO_BUILD" ;;
439 *) AC_MSG_ERROR([Unrecognized target $a_target]) ;;
444 AC_SUBST(TARGETS_TO_BUILD,$TARGETS_TO_BUILD)
446 # Determine whether we are building LLVM support for the native architecture.
447 # If so, define LLVM_NATIVE_ARCH to that LLVM target.
448 for a_target in $TARGETS_TO_BUILD; do
449 if test "$a_target" = "$LLVM_NATIVE_ARCH"; then
450 LLVM_NATIVE_ARCHTARGET="${LLVM_NATIVE_ARCH}Target"
451 AC_DEFINE_UNQUOTED(LLVM_NATIVE_ARCH,$LLVM_NATIVE_ARCHTARGET,
452 [LLVM architecture name for the native architecture, if available])
456 # Build the LLVM_TARGET and LLVM_ASM_PRINTER macro uses for
457 # Targets.def and AsmPrinters.def.
459 LLVM_ENUM_ASM_PRINTERS=""
460 for target_to_build in $TARGETS_TO_BUILD; do
461 LLVM_ENUM_TARGETS="LLVM_TARGET($target_to_build) $LLVM_ENUM_TARGETS"
462 if test -f ${srcdir}/lib/Target/${target_to_build}/AsmPrinter/Makefile ; then
463 LLVM_ENUM_ASM_PRINTERS="LLVM_ASM_PRINTER($target_to_build) $LLVM_ENUM_ASM_PRINTERS";
466 AC_SUBST(LLVM_ENUM_TARGETS)
467 AC_SUBST(LLVM_ENUM_ASM_PRINTERS)
469 dnl Prevent the CBackend from using printf("%a") for floating point so older
470 dnl C compilers that cannot deal with the 0x0p+0 hex floating point format
471 dnl can still compile the CBE's output
472 AC_ARG_ENABLE([cbe-printf-a],AS_HELP_STRING([--enable-cbe-printf-a],
473 [Enable C Backend output with hex floating point via %a (default is YES)]),,
476 yes) AC_SUBST(ENABLE_CBE_PRINTF_A,[1]) ;;
477 no) AC_SUBST(ENABLE_CBE_PRINTF_A,[0]) ;;
478 default) AC_SUBST(ENABLE_CBE_PRINTF_A,[1]) ;;
479 *) AC_MSG_ERROR([Invalid setting for --enable-cbe-printf-a. Use "yes" or "no"]) ;;
481 AC_DEFINE_UNQUOTED([ENABLE_CBE_PRINTF_A],$ENABLE_CBE_PRINTF_A,
482 [Define if CBE is enabled for printf %a output])
484 dnl Allow a specific llvm-gcc/llvm-g++ pair to be used with this LLVM config.
485 AC_ARG_WITH(llvmgccdir,
486 AS_HELP_STRING([--with-llvmgccdir],
487 [Specify location of llvm-gcc install dir (default searches PATH)]),,
490 default) WITH_LLVMGCCDIR=default ;;
491 /* | [[A-Za-z]]:[[\\/]]*) WITH_LLVMGCCDIR=$withval ;;
492 *) AC_MSG_ERROR([Invalid path for --with-llvmgccdir. Provide full path]) ;;
495 dnl Allow a specific llvm-gcc compiler to be used with this LLVM config.
497 AS_HELP_STRING([--with-llvmgcc],
498 [Specify location of llvm-gcc driver (default searches PATH)]),
499 LLVMGCC=$with_llvmgcc
502 dnl Allow a specific llvm-g++ compiler to be used with this LLVM config.
504 AS_HELP_STRING([--with-llvmgxx],
505 [Specify location of llvm-g++ driver (default searches PATH)]),
506 LLVMGXX=$with_llvmgxx
509 if test -n "$LLVMGCC"; then
510 LLVMGCCCOMMAND="$LLVMGCC"
513 if test -n "$LLVMGXX"; then
514 LLVMGXXCOMMAND="$LLVMGXX"
517 if test -n "$LLVMGCC" && test -z "$LLVMGXX"; then
518 AC_MSG_ERROR([Invalid llvm-g++. Use --with-llvmgxx when --with-llvmgcc is used]);
521 if test -n "$LLVMGXX" && test -z "$LLVMGCC"; then
522 AC_MSG_ERROR([Invalid llvm-gcc. Use --with-llvmgcc when --with-llvmgxx is used]);
525 dnl Specify extra build options
526 AC_ARG_WITH(extra-options,
527 AS_HELP_STRING([--with-extra-options],
528 [Specify additional options to compile LLVM with]),,
531 default) EXTRA_OPTIONS= ;;
532 *) EXTRA_OPTIONS=$withval ;;
534 AC_SUBST(EXTRA_OPTIONS,$EXTRA_OPTIONS)
536 dnl Allow specific bindings to be specified for building (or not)
537 AC_ARG_ENABLE([bindings],AS_HELP_STRING([--enable-bindings],
538 [Build specific language bindings: all,auto,none,{binding-name} (default=auto)]),,
542 yes | default | auto) BINDINGS_TO_BUILD="auto" ;;
543 all ) BINDINGS_TO_BUILD="ocaml" ;;
544 none | no) BINDINGS_TO_BUILD="" ;;
545 *)for a_binding in `echo $enableval|sed -e 's/,/ /g' ` ; do
547 ocaml) BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD" ;;
548 *) AC_MSG_ERROR([Unrecognized binding $a_binding]) ;;
554 dnl Allow the ocaml libdir to be overridden. This could go in a configure
555 dnl script for bindings/ocaml/configure, except that its auto value depends on
556 dnl OCAMLC, which is found here to support tests.
557 AC_ARG_WITH([ocaml-libdir],
558 [AS_HELP_STRING([--with-ocaml-libdir],
559 [Specify install location for ocaml bindings (default is stdlib)])],
563 auto) with_ocaml_libdir="$withval" ;;
564 /* | [[A-Za-z]]:[[\\/]]*) with_ocaml_libdir="$withval" ;;
565 *) AC_MSG_ERROR([Invalid path for --with-ocaml-libdir. Provide full path]) ;;
568 dnl Allow linking of LLVM with GPLv3 binutils code.
569 AC_ARG_WITH(binutils-include,
570 AS_HELP_STRING([--with-binutils-include],
571 [Specify path to binutils/include/ containing plugin-api.h file for gold plugin.]),,
574 default) WITH_BINUTILS_INCDIR=default ;;
575 /* | [[A-Za-z]]:[[\\/]]*) WITH_BINUTILS_INCDIR=$withval ;;
576 *) AC_MSG_ERROR([Invalid path for --with-binutils-include. Provide full path]) ;;
578 if test "x$WITH_BINUTILS_INCDIR" != xdefault ; then
579 AC_SUBST(BINUTILS_INCDIR,$WITH_BINUTILS_INCDIR)
580 if test ! -f "$WITH_BINUTILS_INCDIR/plugin-api.h"; then
581 echo "$WITH_BINUTILS_INCDIR/plugin-api.h"
582 AC_MSG_ERROR([Invalid path to directory containing plugin-api.h.]);
586 dnl --enable-libffi : check whether the user wants to turn off libffi:
587 AC_ARG_ENABLE(libffi,AS_HELP_STRING(
588 --enable-libffi,[Check for the presence of libffi (default is YES)]),,
591 yes) llvm_cv_enable_libffi="yes" ;;
592 no) llvm_cv_enable_libffi="no" ;;
593 *) AC_MSG_ERROR([Invalid setting for --enable-libffi. Use "yes" or "no"]) ;;
596 dnl Only Windows needs dynamic libCompilerDriver to support plugins.
597 if test "$llvm_cv_os_type" = "Win32" ; then
603 dnl --enable-llvmc-dynamic : should LLVMC link libCompilerDriver dynamically?
604 AC_ARG_ENABLE(llvmc-dynamic,AS_HELP_STRING(
605 --enable-llvmc-dynamic,
606 [Link LLVMC dynamically (default is NO, unless on Win32)]),,
607 enableval=$llvmc_dynamic)
608 if test ${enableval} = "yes" && test "$ENABLE_PIC" -eq 1 ; then
609 AC_SUBST(ENABLE_LLVMC_DYNAMIC,[[ENABLE_LLVMC_DYNAMIC=1]])
611 AC_SUBST(ENABLE_LLVMC_DYNAMIC,[[]])
614 dnl --enable-llvmc-dynamic-plugins : should LLVMC support dynamic plugins?
615 AC_ARG_ENABLE(llvmc-dynamic-plugins,AS_HELP_STRING(
616 --enable-llvmc-dynamic-plugins,
617 [Enable dynamic LLVMC plugins (default is YES)]),,
619 if test ${enableval} = "yes" ; then
620 AC_SUBST(ENABLE_LLVMC_DYNAMIC_PLUGINS,[[ENABLE_LLVMC_DYNAMIC_PLUGINS=1]])
622 AC_SUBST(ENABLE_LLVMC_DYNAMIC_PLUGINS,[[]])
625 dnl===-----------------------------------------------------------------------===
627 dnl=== SECTION 4: Check for programs we need and that they are the right version
629 dnl===-----------------------------------------------------------------------===
631 dnl Check for compilation tools
639 dnl Check for the tools that the makefiles require
642 AC_PATH_PROG(CMP, [cmp], [cmp])
643 AC_PATH_PROG(CP, [cp], [cp])
644 AC_PATH_PROG(DATE, [date], [date])
645 AC_PATH_PROG(FIND, [find], [find])
646 AC_PATH_PROG(GREP, [grep], [grep])
647 AC_PATH_PROG(MKDIR,[mkdir],[mkdir])
648 AC_PATH_PROG(MV, [mv], [mv])
650 AC_PATH_PROG(RM, [rm], [rm])
651 AC_PATH_PROG(SED, [sed], [sed])
652 AC_PATH_PROG(TAR, [tar], [gtar])
653 AC_PATH_PROG(BINPWD,[pwd], [pwd])
655 dnl Looking for misc. graph plotting software
656 AC_PATH_PROG(GRAPHVIZ, [Graphviz], [echo Graphviz])
657 if test "$GRAPHVIZ" != "echo Graphviz" ; then
658 AC_DEFINE([HAVE_GRAPHVIZ],[1],[Define if the Graphviz program is available])
659 dnl If we're targeting for mingw we should emit windows paths, not msys
660 if test "$llvm_cv_os_type" = "MingW" ; then
661 GRAPHVIZ=`echo $GRAPHVIZ | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
663 AC_DEFINE_UNQUOTED([LLVM_PATH_GRAPHVIZ],"$GRAPHVIZ${EXEEXT}",
664 [Define to path to Graphviz program if found or 'echo Graphviz' otherwise])
666 AC_PATH_PROG(DOT, [dot], [echo dot])
667 if test "$DOT" != "echo dot" ; then
668 AC_DEFINE([HAVE_DOT],[1],[Define if the dot program is available])
669 dnl If we're targeting for mingw we should emit windows paths, not msys
670 if test "$llvm_cv_os_type" = "MingW" ; then
671 DOT=`echo $DOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
673 AC_DEFINE_UNQUOTED([LLVM_PATH_DOT],"$DOT${EXEEXT}",
674 [Define to path to dot program if found or 'echo dot' otherwise])
676 AC_PATH_PROG(FDP, [fdp], [echo fdp])
677 if test "$FDP" != "echo fdp" ; then
678 AC_DEFINE([HAVE_FDP],[1],[Define if the neat program is available])
679 dnl If we're targeting for mingw we should emit windows paths, not msys
680 if test "$llvm_cv_os_type" = "MingW" ; then
681 FDP=`echo $FDP | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
683 AC_DEFINE_UNQUOTED([LLVM_PATH_FDP],"$FDP${EXEEXT}",
684 [Define to path to fdp program if found or 'echo fdp' otherwise])
686 AC_PATH_PROG(NEATO, [neato], [echo neato])
687 if test "$NEATO" != "echo neato" ; then
688 AC_DEFINE([HAVE_NEATO],[1],[Define if the neat program is available])
689 dnl If we're targeting for mingw we should emit windows paths, not msys
690 if test "$llvm_cv_os_type" = "MingW" ; then
691 NEATO=`echo $NEATO | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
693 AC_DEFINE_UNQUOTED([LLVM_PATH_NEATO],"$NEATO${EXEEXT}",
694 [Define to path to neato program if found or 'echo neato' otherwise])
696 AC_PATH_PROG(TWOPI, [twopi], [echo twopi])
697 if test "$TWOPI" != "echo twopi" ; then
698 AC_DEFINE([HAVE_TWOPI],[1],[Define if the neat program is available])
699 dnl If we're targeting for mingw we should emit windows paths, not msys
700 if test "$llvm_cv_os_type" = "MingW" ; then
701 TWOPI=`echo $TWOPI | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
703 AC_DEFINE_UNQUOTED([LLVM_PATH_TWOPI],"$TWOPI${EXEEXT}",
704 [Define to path to twopi program if found or 'echo twopi' otherwise])
706 AC_PATH_PROG(CIRCO, [circo], [echo circo])
707 if test "$CIRCO" != "echo circo" ; then
708 AC_DEFINE([HAVE_CIRCO],[1],[Define if the neat program is available])
709 dnl If we're targeting for mingw we should emit windows paths, not msys
710 if test "$llvm_cv_os_type" = "MingW" ; then
711 CIRCO=`echo $CIRCO | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
713 AC_DEFINE_UNQUOTED([LLVM_PATH_CIRCO],"$CIRCO${EXEEXT}",
714 [Define to path to circo program if found or 'echo circo' otherwise])
716 AC_PATH_PROGS(GV, [gv gsview32], [echo gv])
717 if test "$GV" != "echo gv" ; then
718 AC_DEFINE([HAVE_GV],[1],[Define if the gv program is available])
719 dnl If we're targeting for mingw we should emit windows paths, not msys
720 if test "$llvm_cv_os_type" = "MingW" ; then
721 GV=`echo $GV | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
723 AC_DEFINE_UNQUOTED([LLVM_PATH_GV],"$GV${EXEEXT}",
724 [Define to path to gv program if found or 'echo gv' otherwise])
726 AC_PATH_PROG(DOTTY, [dotty], [echo dotty])
727 if test "$DOTTY" != "echo dotty" ; then
728 AC_DEFINE([HAVE_DOTTY],[1],[Define if the dotty program is available])
729 dnl If we're targeting for mingw we should emit windows paths, not msys
730 if test "$llvm_cv_os_type" = "MingW" ; then
731 DOTTY=`echo $DOTTY | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
733 AC_DEFINE_UNQUOTED([LLVM_PATH_DOTTY],"$DOTTY${EXEEXT}",
734 [Define to path to dotty program if found or 'echo dotty' otherwise])
737 dnl Look for a sufficiently recent version of Perl.
738 LLVM_PROG_PERL([5.006])
740 if test x"$PERL" = xnone; then
741 AC_SUBST(HAVE_PERL,0)
742 AC_MSG_ERROR([perl is required but was not found, please install it])
744 AC_SUBST(HAVE_PERL,1)
747 dnl Find the install program
750 dnl Checks for documentation and testing tools that we can do without. If these
751 dnl are not found then they are set to "true" which always succeeds but does
752 dnl nothing. This just lets the build output show that we could have done
753 dnl something if the tool was available.
754 AC_PATH_PROG(BZIP2, [bzip2])
755 AC_PATH_PROG(DOXYGEN, [doxygen])
756 AC_PATH_PROG(GROFF, [groff])
757 AC_PATH_PROG(GZIP, [gzip])
758 AC_PATH_PROG(POD2HTML, [pod2html])
759 AC_PATH_PROG(POD2MAN, [pod2man])
760 AC_PATH_PROG(RUNTEST, [runtest])
762 AC_PATH_PROG(ZIP, [zip])
763 AC_PATH_PROGS(OCAMLC, [ocamlc])
764 AC_PATH_PROGS(OCAMLOPT, [ocamlopt])
765 AC_PATH_PROGS(OCAMLDEP, [ocamldep])
766 AC_PATH_PROGS(OCAMLDOC, [ocamldoc])
767 AC_PATH_PROGS(GAS, [gas as])
769 dnl Determine whether the linker supports the -R option.
772 dnl Determine whether the linker supports the -export-dynamic option.
773 AC_LINK_EXPORT_DYNAMIC
775 dnl Check for libtool and the library that has dlopen function (which must come
776 dnl before the AC_PROG_LIBTOOL check in order to enable dlopening libraries with
782 if test "$lt_cv_dlopen_self" = "yes" ; then
783 AC_DEFINE([CAN_DLOPEN_SELF],[1],
784 [Define if dlopen(0) will open the symbols of the program])
788 if test "$WITH_LLVMGCCDIR" = "default" ; then
789 LLVMGCC="llvm-gcc${EXEEXT}"
790 LLVMGXX="llvm-g++${EXEEXT}"
791 LLVMGCCCOMMAND="$LLVMGCC"
792 LLVMGXXCOMMAND="$LLVMGXX"
793 AC_SUBST(LLVMGCCCOMMAND,$LLVMGCCCOMMAND)
794 AC_SUBST(LLVMGXXCOMMAND,$LLVMGXXCOMMAND)
795 AC_PATH_PROG(LLVMGCC, $LLVMGCC, [])
796 AC_PATH_PROG(LLVMGXX, $LLVMGXX, [])
798 if test -z "$LLVMGCC"; then
799 LLVMGCC="$WITH_LLVMGCCDIR/bin/llvm-gcc${EXEEXT}"
800 LLVMGCCCOMMAND="$LLVMGCC"
802 if test -z "$LLVMGXX"; then
803 LLVMGXX="$WITH_LLVMGCCDIR/bin/llvm-g++${EXEEXT}"
804 LLVMGXXCOMMAND="$LLVMGXX"
807 AC_SUBST(LLVMGCC,$LLVMGCC)
808 AC_SUBST(LLVMGXX,$LLVMGXX)
809 AC_SUBST(LLVMGCCCOMMAND,$LLVMGCCCOMMAND)
810 AC_SUBST(LLVMGXXCOMMAND,$LLVMGXXCOMMAND)
814 AC_MSG_CHECKING([tool compatibility])
816 dnl Ensure that compilation tools are GCC or a GNU compatible compiler such as
817 dnl ICC; we use GCC specific options in the makefiles so the compiler needs
818 dnl to support those options.
819 dnl "icc" emits gcc signatures
820 dnl "icc -no-gcc" emits no gcc signature BUT is still compatible
832 if test "$GCC" != "yes" && test "$ICC" != "yes"
834 AC_MSG_ERROR([gcc|icc required but not found])
837 dnl Ensure that compilation tools are GCC; we use GCC specific extensions
838 if test "$GXX" != "yes" && test "$IXX" != "yes"
840 AC_MSG_ERROR([g++|icc required but not found])
843 dnl Verify that GCC is version 3.0 or higher
844 if test "$GCC" = "yes"
846 AC_COMPILE_IFELSE([[#if !defined(__GNUC__) || __GNUC__ < 3
847 #error Unsupported GCC version
849 ]], [], [AC_MSG_ERROR([gcc 3.x required, but you have a lower version])])
852 dnl Check for GNU Make. We use its extensions, so don't build without it
853 if test -z "$llvm_cv_gnu_make_command"
855 AC_MSG_ERROR([GNU Make required but not found])
858 dnl Tool compatibility is okay if we make it here.
861 dnl===-----------------------------------------------------------------------===
863 dnl=== SECTION 5: Check for libraries
865 dnl===-----------------------------------------------------------------------===
867 dnl libelf is for sparc only; we can ignore it if we don't have it
868 AC_CHECK_LIB(elf, elf_begin)
870 if test "$llvm_cv_os_type" = "MingW" ; then
871 AC_CHECK_LIB(imagehlp, main)
872 AC_CHECK_LIB(psapi, main)
875 dnl dlopen() is required for plugin support.
876 AC_SEARCH_LIBS(dlopen,dl,AC_DEFINE([HAVE_DLOPEN],[1],
877 [Define if dlopen() is available on this platform.]),
878 AC_MSG_WARN([dlopen() not found - disabling plugin support]))
880 dnl libffi is optional; used to call external functions from the interpreter
881 if test "$llvm_cv_enable_libffi" = "yes" ; then
882 AC_SEARCH_LIBS(ffi_call,ffi,AC_DEFINE([HAVE_FFI_CALL],[1],
883 [Define if libffi is available on this platform.]),
884 AC_MSG_WARN([libffi not found - disabling external calls from interpreter]))
887 dnl mallinfo is optional; the code can compile (minus features) without it
888 AC_SEARCH_LIBS(mallinfo,malloc,AC_DEFINE([HAVE_MALLINFO],[1],
889 [Define if mallinfo() is available on this platform.]))
891 dnl pthread locking functions are optional - but llvm will not be thread-safe
893 if test "$ENABLE_THREADS" -eq 1 ; then
894 AC_CHECK_LIB(pthread,pthread_mutex_init)
895 AC_SEARCH_LIBS(pthread_mutex_lock,pthread,
896 AC_DEFINE([HAVE_PTHREAD_MUTEX_LOCK],[1],
897 [Have pthread_mutex_lock]))
898 AC_SEARCH_LIBS(pthread_rwlock_init,pthread,
899 AC_DEFINE([HAVE_PTHREAD_RWLOCK_INIT],[1],
900 [Have pthread_rwlock_init]))
901 AC_SEARCH_LIBS(pthread_getspecific,pthread,
902 AC_DEFINE([HAVE_PTHREAD_GETSPECIFIC],[1],
903 [Have pthread_getspecific]))
906 dnl Allow extra x86-disassembler library
908 AS_HELP_STRING([--with-udis86=<path>],
909 [Use udis86 external x86 disassembler library]),
911 AC_SUBST(USE_UDIS86, [1])
914 *) LDFLAGS="$LDFLAGS -L${withval}" ;;
916 AC_CHECK_LIB(udis86, ud_init, [], [
917 echo "Error! You need to have libudis86 around."
921 AC_SUBST(USE_UDIS86, [0]))
922 AC_DEFINE_UNQUOTED([USE_UDIS86],$USE_UDIS86,
923 [Define if use udis86 library])
925 dnl Allow OProfile support for JIT output.
926 AC_ARG_WITH(oprofile,
927 AS_HELP_STRING([--with-oprofile=<prefix>],
928 [Tell OProfile >= 0.9.4 how to symbolize JIT output]),
930 AC_SUBST(USE_OPROFILE, [1])
932 /usr|yes) llvm_cv_oppath=/usr/lib/oprofile ;;
933 *) llvm_cv_oppath="${withval}/lib/oprofile"
934 CPPFLAGS="-I${withval}/include";;
936 LIBS="$LIBS -L${llvm_cv_oppath} -Wl,-rpath,${llvm_cv_oppath}"
937 AC_SEARCH_LIBS(op_open_agent, opagent, [], [
938 echo "Error! You need to have libopagent around."
941 AC_CHECK_HEADER([opagent.h], [], [
942 echo "Error! You need to have opagent.h around."
947 llvm_cv_old_LIBS="$LIBS"
948 LIBS="$LIBS -L/usr/lib/oprofile -Wl,-rpath,/usr/lib/oprofile"
949 dnl If either the library or header aren't present, omit oprofile support.
950 AC_SEARCH_LIBS(op_open_agent, opagent,
951 [AC_SUBST(USE_OPROFILE, [1])],
952 [LIBS="$llvm_cv_old_LIBS"
953 AC_SUBST(USE_OPROFILE, [0])])
954 AC_CHECK_HEADER([opagent.h], [], [
955 LIBS="$llvm_cv_old_LIBS"
956 AC_SUBST(USE_OPROFILE, [0])
959 AC_DEFINE_UNQUOTED([USE_OPROFILE],$USE_OPROFILE,
960 [Define if we have the oprofile JIT-support library])
962 dnl===-----------------------------------------------------------------------===
964 dnl=== SECTION 6: Check for header files
966 dnl===-----------------------------------------------------------------------===
968 dnl First, use autoconf provided macros for specific headers that we need
969 dnl We don't check for ancient stuff or things that are guaranteed to be there
970 dnl by the C++ standard. We always use the <cfoo> versions of <foo.h> C headers.
971 dnl Generally we're looking for POSIX headers.
973 AC_HEADER_MMAP_ANONYMOUS
979 AC_CHECK_HEADERS([dlfcn.h execinfo.h fcntl.h inttypes.h limits.h link.h])
980 AC_CHECK_HEADERS([malloc.h setjmp.h signal.h stdint.h termios.h unistd.h])
981 AC_CHECK_HEADERS([utime.h windows.h])
982 AC_CHECK_HEADERS([sys/mman.h sys/param.h sys/resource.h sys/time.h])
983 AC_CHECK_HEADERS([sys/types.h sys/ioctl.h malloc/malloc.h mach/mach.h])
984 if test "$ENABLE_THREADS" -eq 1 ; then
985 AC_CHECK_HEADERS(pthread.h,
986 AC_SUBST(HAVE_PTHREAD, 1),
987 AC_SUBST(HAVE_PTHREAD, 0))
989 AC_SUBST(HAVE_PTHREAD, 0)
992 dnl Try to find ffi.h.
993 if test "$llvm_cv_enable_libffi" = "yes" ; then
994 AC_CHECK_HEADERS([ffi.h ffi/ffi.h])
997 dnl===-----------------------------------------------------------------------===
999 dnl=== SECTION 7: Check for types and structures
1001 dnl===-----------------------------------------------------------------------===
1008 AC_CHECK_TYPES([int64_t],,AC_MSG_ERROR([Type int64_t required but not found]))
1009 AC_CHECK_TYPES([uint64_t],,
1010 AC_CHECK_TYPES([u_int64_t],,
1011 AC_MSG_ERROR([Type uint64_t or u_int64_t required but not found])))
1013 dnl===-----------------------------------------------------------------------===
1015 dnl=== SECTION 8: Check for specific functions needed
1017 dnl===-----------------------------------------------------------------------===
1019 AC_CHECK_FUNCS([backtrace ceilf floorf roundf rintf nearbyintf getcwd ])
1020 AC_CHECK_FUNCS([powf fmodf strtof round ])
1021 AC_CHECK_FUNCS([getpagesize getrusage getrlimit setrlimit gettimeofday ])
1022 AC_CHECK_FUNCS([isatty mkdtemp mkstemp ])
1023 AC_CHECK_FUNCS([mktemp realpath sbrk setrlimit strdup ])
1024 AC_CHECK_FUNCS([strerror strerror_r strerror_s ])
1025 AC_CHECK_FUNCS([strtoll strtoq sysconf malloc_zone_statistics ])
1026 AC_CHECK_FUNCS([setjmp longjmp sigsetjmp siglongjmp])
1031 dnl Check for variations in the Standard C++ library and STL. These macros are
1032 dnl provided by LLVM in the autoconf/m4 directory.
1033 AC_CXX_HAVE_STD_ITERATOR
1034 AC_CXX_HAVE_BI_ITERATOR
1035 AC_CXX_HAVE_FWD_ITERATOR
1039 dnl Check for mmap support.We also need to know if /dev/zero is required to
1040 dnl be opened for allocating RWX memory.
1041 dnl Make sure we aren't attempting to configure for an unknown system
1042 if test "$llvm_cv_platform_type" = "Unix" ; then
1045 AC_NEED_DEV_ZERO_FOR_MMAP
1047 if test "$ac_cv_func_mmap_fixed_mapped" = "no"
1049 AC_MSG_WARN([mmap() of a fixed address required but not supported])
1051 if test "$ac_cv_func_mmap_file" = "no"
1053 AC_MSG_WARN([mmap() of files required but not found])
1057 dnl atomic builtins are required for threading support.
1058 AC_MSG_CHECKING(for GCC atomic builtins)
1062 volatile unsigned long val = 1;
1063 __sync_synchronize();
1064 __sync_val_compare_and_swap(&val, 1, 0);
1065 __sync_add_and_fetch(&val, 1);
1066 __sync_sub_and_fetch(&val, 1);
1071 AC_DEFINE(LLVM_MULTITHREADED, 1, Build multithreading support into LLVM),
1073 AC_DEFINE(LLVM_MULTITHREADED, 0, Build multithreading support into LLVM)
1074 AC_MSG_WARN([LLVM will be built thread-unsafe because atomic builtins are missing]))
1077 dnl===-----------------------------------------------------------------------===
1079 dnl=== SECTION 9: Additional checks, variables, etc.
1081 dnl===-----------------------------------------------------------------------===
1083 dnl Check, whether __dso_handle is present
1084 AC_CHECK_FUNCS([__dso_handle])
1086 dnl See if the llvm-gcc executable can compile to LLVM assembly
1087 AC_CACHE_CHECK([whether llvm-gcc is sane],[llvm_cv_llvmgcc_sanity],
1088 [llvm_cv_llvmgcc_sanity="no"
1089 if test -x "$LLVMGCC" ; then
1090 cp /dev/null conftest.c
1091 "$LLVMGCC" -emit-llvm -S -o - conftest.c | \
1092 grep 'target datalayout =' > /dev/null 2>&1
1093 if test $? -eq 0 ; then
1094 llvm_cv_llvmgcc_sanity="yes"
1099 dnl Since we have a sane llvm-gcc, identify it and its sub-tools
1100 if test "$llvm_cv_llvmgcc_sanity" = "yes" ; then
1101 AC_MSG_CHECKING([llvm-gcc component support])
1102 llvmcc1path=`"$LLVMGCC" --print-prog-name=cc1`
1103 AC_SUBST(LLVMCC1,$llvmcc1path)
1104 llvmcc1pluspath=`"$LLVMGCC" --print-prog-name=cc1plus`
1105 AC_SUBST(LLVMCC1PLUS,$llvmcc1pluspath)
1106 llvmgccdir=`echo "$llvmcc1path" | sed 's,/libexec/.*,,'`
1107 AC_SUBST(LLVMGCCDIR,$llvmgccdir)
1108 llvmgcclibexec=`echo "$llvmcc1path" | sed 's,/cc1,,'`
1109 AC_SUBST(LLVMGCCLIBEXEC,$llvmgcclibexec)
1110 llvmgccversion=[`"$LLVMGCC" -dumpversion 2>&1 | sed 's/^\([0-9.]*\).*/\1/'`]
1111 llvmgccmajvers=[`echo $llvmgccversion | sed 's/^\([0-9]\).*/\1/'`]
1112 AC_SUBST(LLVMGCC_VERSION,$llvmgccversion)
1113 AC_SUBST(LLVMGCC_MAJVERS,$llvmgccmajvers)
1114 llvmgcclangs=[`"$LLVMGCC" -v --help 2>&1 | grep '^Configured with:' | sed 's/^.*--enable-languages=\([^ ]*\).*/\1/'`]
1115 AC_SUBST(LLVMGCC_LANGS,$llvmgcclangs)
1119 dnl Propagate the shared library extension that the libltdl checks did to
1120 dnl the Makefiles so we can use it there too
1121 AC_SUBST(SHLIBEXT,$libltdl_cv_shlibext)
1123 # Translate the various configuration directories and other basic
1124 # information into substitutions that will end up in Makefile.config.in
1125 # that these configured values can be used by the makefiles
1126 if test "${prefix}" = "NONE" ; then
1129 eval LLVM_PREFIX="${prefix}";
1130 eval LLVM_BINDIR="${prefix}/bin";
1131 eval LLVM_LIBDIR="${prefix}/lib";
1132 eval LLVM_DATADIR="${prefix}/share/llvm";
1133 eval LLVM_DOCSDIR="${prefix}/docs/llvm";
1134 eval LLVM_ETCDIR="${prefix}/etc/llvm";
1135 eval LLVM_INCLUDEDIR="${prefix}/include";
1136 eval LLVM_INFODIR="${prefix}/info";
1137 eval LLVM_MANDIR="${prefix}/man";
1138 LLVM_CONFIGTIME=`date`
1139 AC_SUBST(LLVM_PREFIX)
1140 AC_SUBST(LLVM_BINDIR)
1141 AC_SUBST(LLVM_LIBDIR)
1142 AC_SUBST(LLVM_DATADIR)
1143 AC_SUBST(LLVM_DOCSDIR)
1144 AC_SUBST(LLVM_ETCDIR)
1145 AC_SUBST(LLVM_INCLUDEDIR)
1146 AC_SUBST(LLVM_INFODIR)
1147 AC_SUBST(LLVM_MANDIR)
1148 AC_SUBST(LLVM_CONFIGTIME)
1150 # Place the various directores into the config.h file as #defines so that we
1151 # can know about the installation paths within LLVM.
1152 AC_DEFINE_UNQUOTED(LLVM_PREFIX,"$LLVM_PREFIX",
1153 [Installation prefix directory])
1154 AC_DEFINE_UNQUOTED(LLVM_BINDIR, "$LLVM_BINDIR",
1155 [Installation directory for binary executables])
1156 AC_DEFINE_UNQUOTED(LLVM_LIBDIR, "$LLVM_LIBDIR",
1157 [Installation directory for libraries])
1158 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DATADIR",
1159 [Installation directory for data files])
1160 AC_DEFINE_UNQUOTED(LLVM_DOCSDIR, "$LLVM_DOCSDIR",
1161 [Installation directory for documentation])
1162 AC_DEFINE_UNQUOTED(LLVM_ETCDIR, "$LLVM_ETCDIR",
1163 [Installation directory for config files])
1164 AC_DEFINE_UNQUOTED(LLVM_INCLUDEDIR, "$LLVM_INCLUDEDIR",
1165 [Installation directory for include files])
1166 AC_DEFINE_UNQUOTED(LLVM_INFODIR, "$LLVM_INFODIR",
1167 [Installation directory for .info files])
1168 AC_DEFINE_UNQUOTED(LLVM_MANDIR, "$LLVM_MANDIR",
1169 [Installation directory for man pages])
1170 AC_DEFINE_UNQUOTED(LLVM_CONFIGTIME, "$LLVM_CONFIGTIME",
1171 [Time at which LLVM was configured])
1172 AC_DEFINE_UNQUOTED(LLVM_HOSTTRIPLE, "$host",
1173 [Host triple we were built on])
1175 # Determine which bindings to build.
1176 if test "$BINDINGS_TO_BUILD" = auto ; then
1177 BINDINGS_TO_BUILD=""
1178 if test "x$OCAMLC" != x -a "x$OCAMLDEP" != x ; then
1179 BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD"
1182 AC_SUBST(BINDINGS_TO_BUILD,$BINDINGS_TO_BUILD)
1184 # This isn't really configurey, but it avoids having to repeat the list in
1186 AC_SUBST(ALL_BINDINGS,ocaml)
1188 # Do any work necessary to ensure that bindings have what they need.
1189 binding_prereqs_failed=0
1190 for a_binding in $BINDINGS_TO_BUILD ; do
1191 case "$a_binding" in
1193 if test "x$OCAMLC" = x ; then
1194 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlc not found. Try configure OCAMLC=/path/to/ocamlc])
1195 binding_prereqs_failed=1
1197 if test "x$OCAMLDEP" = x ; then
1198 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamldep not found. Try configure OCAMLDEP=/path/to/ocamldep])
1199 binding_prereqs_failed=1
1201 if test "x$OCAMLOPT" = x ; then
1202 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlopt not found. Try configure OCAMLOPT=/path/to/ocamlopt])
1203 dnl ocamlopt is optional!
1205 if test "x$with_ocaml_libdir" != xauto ; then
1206 AC_SUBST(OCAML_LIBDIR,$with_ocaml_libdir)
1208 ocaml_stdlib="`"$OCAMLC" -where`"
1209 if test "$LLVM_PREFIX" '<' "$ocaml_stdlib" -a "$ocaml_stdlib" '<' "$LLVM_PREFIX~"
1211 # ocaml stdlib is beneath our prefix; use stdlib
1212 AC_SUBST(OCAML_LIBDIR,$ocaml_stdlib)
1214 # ocaml stdlib is outside our prefix; use libdir/ocaml
1215 AC_SUBST(OCAML_LIBDIR,$LLVM_LIBDIR/ocaml)
1221 if test "$binding_prereqs_failed" = 1 ; then
1222 AC_MSG_ERROR([Prequisites for bindings not satisfied. Fix them or use configure --disable-bindings.])
1225 dnl Determine whether the compiler supports -fvisibility-inlines-hidden.
1226 AC_CXX_USE_VISIBILITY_INLINES_HIDDEN
1228 dnl Determine linker rpath flag
1229 if test "$llvm_cv_link_use_r" = "yes" ; then
1236 dnl Determine linker rdynamic flag
1237 if test "$llvm_cv_link_use_export_dynamic" = "yes" ; then
1238 RDYNAMIC="-Wl,-export-dynamic"
1244 dnl===-----------------------------------------------------------------------===
1246 dnl=== SECTION 10: Specify the output files and generate it
1248 dnl===-----------------------------------------------------------------------===
1250 dnl Configure header files
1251 dnl WARNING: dnl If you add or remove any of the following config headers, then
1252 dnl you MUST also update Makefile.rules so that the variable FilesToConfig
1253 dnl contains the same list of files as AC_CONFIG_HEADERS below. This ensures the
1254 dnl files can be updated automatically when their *.in sources change.
1255 AC_CONFIG_HEADERS([include/llvm/Config/config.h])
1256 AC_CONFIG_FILES([include/llvm/Config/Targets.def])
1257 AC_CONFIG_FILES([include/llvm/Config/AsmPrinters.def])
1258 AC_CONFIG_HEADERS([include/llvm/Support/DataTypes.h])
1259 AC_CONFIG_HEADERS([include/llvm/ADT/iterator.h])
1261 dnl Configure the makefile's configuration data
1262 AC_CONFIG_FILES([Makefile.config])
1264 dnl Configure the RPM spec file for LLVM
1265 AC_CONFIG_FILES([llvm.spec])
1267 dnl Configure doxygen's configuration file
1268 AC_CONFIG_FILES([docs/doxygen.cfg])
1270 dnl Configure llvmc's Base plugin
1271 AC_CONFIG_FILES([tools/llvmc/plugins/Base/Base.td])
1273 dnl Do the first stage of configuration for llvm-config.in.
1274 AC_CONFIG_FILES([tools/llvm-config/llvm-config.in])
1276 dnl Do special configuration of Makefiles
1277 AC_CONFIG_COMMANDS([setup],,[llvm_src="${srcdir}"])
1278 AC_CONFIG_MAKEFILE(Makefile)
1279 AC_CONFIG_MAKEFILE(Makefile.common)
1280 AC_CONFIG_MAKEFILE(examples/Makefile)
1281 AC_CONFIG_MAKEFILE(lib/Makefile)
1282 AC_CONFIG_MAKEFILE(runtime/Makefile)
1283 AC_CONFIG_MAKEFILE(test/Makefile)
1284 AC_CONFIG_MAKEFILE(test/Makefile.tests)
1285 AC_CONFIG_MAKEFILE(unittests/Makefile)
1286 AC_CONFIG_MAKEFILE(tools/Makefile)
1287 AC_CONFIG_MAKEFILE(utils/Makefile)
1288 AC_CONFIG_MAKEFILE(projects/Makefile)
1289 AC_CONFIG_MAKEFILE(bindings/Makefile)
1290 AC_CONFIG_MAKEFILE(bindings/ocaml/Makefile.ocaml)
1292 dnl Finally, crank out the output