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 $llvm_cv_platform_type in
203 AC_DEFINE([LLVM_ON_UNIX],[1],[Define if this is Unixish platform])
204 AC_SUBST(LLVM_ON_UNIX,[1])
205 AC_SUBST(LLVM_ON_WIN32,[0])
208 AC_DEFINE([LLVM_ON_WIN32],[1],[Define if this is Win32ish platform])
209 AC_SUBST(LLVM_ON_UNIX,[0])
210 AC_SUBST(LLVM_ON_WIN32,[1])
214 dnl Determine what our target architecture is and configure accordingly.
215 dnl This will allow Makefiles to make a distinction between the hardware and
217 AC_CACHE_CHECK([target architecture],[llvm_cv_target_arch],
219 i?86-*) llvm_cv_target_arch="x86" ;;
220 amd64-* | x86_64-*) llvm_cv_target_arch="x86_64" ;;
221 sparc*-*) llvm_cv_target_arch="Sparc" ;;
222 powerpc*-*) llvm_cv_target_arch="PowerPC" ;;
223 alpha*-*) llvm_cv_target_arch="Alpha" ;;
224 arm*-*) llvm_cv_target_arch="ARM" ;;
225 mips-*) llvm_cv_target_arch="Mips" ;;
226 pic16-*) llvm_cv_target_arch="PIC16" ;;
227 xcore-*) llvm_cv_target_arch="XCore" ;;
228 msp430-*) llvm_cv_target_arch="MSP430" ;;
229 s390x-*) llvm_cv_target_arch="SystemZ" ;;
230 *) llvm_cv_target_arch="Unknown" ;;
233 if test "$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 ARM) AC_SUBST(TARGET_HAS_JIT,0) ;;
350 Mips) AC_SUBST(TARGET_HAS_JIT,0) ;;
351 PIC16) AC_SUBST(TARGET_HAS_JIT,0) ;;
352 XCore) AC_SUBST(TARGET_HAS_JIT,0) ;;
353 MSP430) AC_SUBST(TARGET_HAS_JIT,0) ;;
354 SystemZ) 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 ARM Mips CellSPU PIC16 XCore MSP430 SystemZ 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 ARM) TARGETS_TO_BUILD="ARM" ;;
413 Mips) TARGETS_TO_BUILD="Mips" ;;
414 CellSPU|SPU) TARGETS_TO_BUILD="CellSPU" ;;
415 PIC16) TARGETS_TO_BUILD="PIC16" ;;
416 XCore) TARGETS_TO_BUILD="XCore" ;;
417 MSP430) TARGETS_TO_BUILD="MSP430" ;;
418 SystemZ) TARGETS_TO_BUILD="SystemZ" ;;
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 arm) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
430 mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
431 spu) TARGETS_TO_BUILD="CellSPU $TARGETS_TO_BUILD" ;;
432 pic16) TARGETS_TO_BUILD="PIC16 $TARGETS_TO_BUILD" ;;
433 xcore) TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
434 msp430) TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;;
435 systemz) TARGETS_TO_BUILD="SystemZ $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, AsmPrinters.def, and AsmParsers.def.
459 LLVM_ENUM_ASM_PRINTERS=""
460 LLVM_ENUM_ASM_PARSERS=""
461 for target_to_build in $TARGETS_TO_BUILD; do
462 LLVM_ENUM_TARGETS="LLVM_TARGET($target_to_build) $LLVM_ENUM_TARGETS"
463 if test -f ${srcdir}/lib/Target/${target_to_build}/AsmPrinter/Makefile ; then
464 LLVM_ENUM_ASM_PRINTERS="LLVM_ASM_PRINTER($target_to_build) $LLVM_ENUM_ASM_PRINTERS";
466 if test -f ${srcdir}/lib/Target/${target_to_build}/AsmParser/Makefile ; then
467 LLVM_ENUM_ASM_PARSERS="LLVM_ASM_PARSER($target_to_build) $LLVM_ENUM_ASM_PARSERS";
470 AC_SUBST(LLVM_ENUM_TARGETS)
471 AC_SUBST(LLVM_ENUM_ASM_PRINTERS)
472 AC_SUBST(LLVM_ENUM_ASM_PARSERS)
474 dnl Prevent the CBackend from using printf("%a") for floating point so older
475 dnl C compilers that cannot deal with the 0x0p+0 hex floating point format
476 dnl can still compile the CBE's output
477 AC_ARG_ENABLE([cbe-printf-a],AS_HELP_STRING([--enable-cbe-printf-a],
478 [Enable C Backend output with hex floating point via %a (default is YES)]),,
481 yes) AC_SUBST(ENABLE_CBE_PRINTF_A,[1]) ;;
482 no) AC_SUBST(ENABLE_CBE_PRINTF_A,[0]) ;;
483 default) AC_SUBST(ENABLE_CBE_PRINTF_A,[1]) ;;
484 *) AC_MSG_ERROR([Invalid setting for --enable-cbe-printf-a. Use "yes" or "no"]) ;;
486 AC_DEFINE_UNQUOTED([ENABLE_CBE_PRINTF_A],$ENABLE_CBE_PRINTF_A,
487 [Define if CBE is enabled for printf %a output])
489 dnl Allow a specific llvm-gcc/llvm-g++ pair to be used with this LLVM config.
490 AC_ARG_WITH(llvmgccdir,
491 AS_HELP_STRING([--with-llvmgccdir],
492 [Specify location of llvm-gcc install dir (default searches PATH)]),,
495 default) WITH_LLVMGCCDIR=default ;;
496 /* | [[A-Za-z]]:[[\\/]]*) WITH_LLVMGCCDIR=$withval ;;
497 *) AC_MSG_ERROR([Invalid path for --with-llvmgccdir. Provide full path]) ;;
500 dnl Allow a specific llvm-gcc compiler to be used with this LLVM config.
502 AS_HELP_STRING([--with-llvmgcc],
503 [Specify location of llvm-gcc driver (default searches PATH)]),
504 LLVMGCC=$with_llvmgcc
507 dnl Allow a specific llvm-g++ compiler to be used with this LLVM config.
509 AS_HELP_STRING([--with-llvmgxx],
510 [Specify location of llvm-g++ driver (default searches PATH)]),
511 LLVMGXX=$with_llvmgxx
514 if test -n "$LLVMGCC"; then
515 LLVMGCCCOMMAND="$LLVMGCC"
518 if test -n "$LLVMGXX"; then
519 LLVMGXXCOMMAND="$LLVMGXX"
522 if test -n "$LLVMGCC" && test -z "$LLVMGXX"; then
523 AC_MSG_ERROR([Invalid llvm-g++. Use --with-llvmgxx when --with-llvmgcc is used]);
526 if test -n "$LLVMGXX" && test -z "$LLVMGCC"; then
527 AC_MSG_ERROR([Invalid llvm-gcc. Use --with-llvmgcc when --with-llvmgxx is used]);
530 dnl Specify extra build options
531 AC_ARG_WITH(extra-options,
532 AS_HELP_STRING([--with-extra-options],
533 [Specify additional options to compile LLVM with]),,
536 default) EXTRA_OPTIONS= ;;
537 *) EXTRA_OPTIONS=$withval ;;
539 AC_SUBST(EXTRA_OPTIONS,$EXTRA_OPTIONS)
541 dnl Allow specific bindings to be specified for building (or not)
542 AC_ARG_ENABLE([bindings],AS_HELP_STRING([--enable-bindings],
543 [Build specific language bindings: all,auto,none,{binding-name} (default=auto)]),,
547 yes | default | auto) BINDINGS_TO_BUILD="auto" ;;
548 all ) BINDINGS_TO_BUILD="ocaml" ;;
549 none | no) BINDINGS_TO_BUILD="" ;;
550 *)for a_binding in `echo $enableval|sed -e 's/,/ /g' ` ; do
552 ocaml) BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD" ;;
553 *) AC_MSG_ERROR([Unrecognized binding $a_binding]) ;;
559 dnl Allow the ocaml libdir to be overridden. This could go in a configure
560 dnl script for bindings/ocaml/configure, except that its auto value depends on
561 dnl OCAMLC, which is found here to support tests.
562 AC_ARG_WITH([ocaml-libdir],
563 [AS_HELP_STRING([--with-ocaml-libdir],
564 [Specify install location for ocaml bindings (default is stdlib)])],
568 auto) with_ocaml_libdir="$withval" ;;
569 /* | [[A-Za-z]]:[[\\/]]*) with_ocaml_libdir="$withval" ;;
570 *) AC_MSG_ERROR([Invalid path for --with-ocaml-libdir. Provide full path]) ;;
573 dnl Allow linking of LLVM with GPLv3 binutils code.
574 AC_ARG_WITH(binutils-include,
575 AS_HELP_STRING([--with-binutils-include],
576 [Specify path to binutils/include/ containing plugin-api.h file for gold plugin.]),,
579 default) WITH_BINUTILS_INCDIR=default ;;
580 /* | [[A-Za-z]]:[[\\/]]*) WITH_BINUTILS_INCDIR=$withval ;;
581 *) AC_MSG_ERROR([Invalid path for --with-binutils-include. Provide full path]) ;;
583 if test "x$WITH_BINUTILS_INCDIR" != xdefault ; then
584 AC_SUBST(BINUTILS_INCDIR,$WITH_BINUTILS_INCDIR)
585 if test ! -f "$WITH_BINUTILS_INCDIR/plugin-api.h"; then
586 echo "$WITH_BINUTILS_INCDIR/plugin-api.h"
587 AC_MSG_ERROR([Invalid path to directory containing plugin-api.h.]);
591 dnl --enable-libffi : check whether the user wants to turn off libffi:
592 AC_ARG_ENABLE(libffi,AS_HELP_STRING(
593 --enable-libffi,[Check for the presence of libffi (default is YES)]),,
596 yes) llvm_cv_enable_libffi="yes" ;;
597 no) llvm_cv_enable_libffi="no" ;;
598 *) AC_MSG_ERROR([Invalid setting for --enable-libffi. Use "yes" or "no"]) ;;
601 dnl Only Windows needs dynamic libCompilerDriver to support plugins.
602 if test "$llvm_cv_os_type" = "Win32" ; then
608 dnl --enable-llvmc-dynamic : should LLVMC link libCompilerDriver dynamically?
609 AC_ARG_ENABLE(llvmc-dynamic,AS_HELP_STRING(
610 --enable-llvmc-dynamic,
611 [Link LLVMC dynamically (default is NO, unless on Win32)]),,
612 enableval=$llvmc_dynamic)
613 if test ${enableval} = "yes" && test "$ENABLE_PIC" -eq 1 ; then
614 AC_SUBST(ENABLE_LLVMC_DYNAMIC,[[ENABLE_LLVMC_DYNAMIC=1]])
616 AC_SUBST(ENABLE_LLVMC_DYNAMIC,[[]])
619 dnl --enable-llvmc-dynamic-plugins : should LLVMC support dynamic plugins?
620 AC_ARG_ENABLE(llvmc-dynamic-plugins,AS_HELP_STRING(
621 --enable-llvmc-dynamic-plugins,
622 [Enable dynamic LLVMC plugins (default is YES)]),,
624 if test ${enableval} = "yes" ; then
625 AC_SUBST(ENABLE_LLVMC_DYNAMIC_PLUGINS,[[ENABLE_LLVMC_DYNAMIC_PLUGINS=1]])
627 AC_SUBST(ENABLE_LLVMC_DYNAMIC_PLUGINS,[[]])
630 dnl===-----------------------------------------------------------------------===
632 dnl=== SECTION 4: Check for programs we need and that they are the right version
634 dnl===-----------------------------------------------------------------------===
636 dnl Check for compilation tools
644 dnl Check for the tools that the makefiles require
647 AC_PATH_PROG(CMP, [cmp], [cmp])
648 AC_PATH_PROG(CP, [cp], [cp])
649 AC_PATH_PROG(DATE, [date], [date])
650 AC_PATH_PROG(FIND, [find], [find])
651 AC_PATH_PROG(GREP, [grep], [grep])
652 AC_PATH_PROG(MKDIR,[mkdir],[mkdir])
653 AC_PATH_PROG(MV, [mv], [mv])
655 AC_PATH_PROG(RM, [rm], [rm])
656 AC_PATH_PROG(SED, [sed], [sed])
657 AC_PATH_PROG(TAR, [tar], [gtar])
658 AC_PATH_PROG(BINPWD,[pwd], [pwd])
660 dnl Looking for misc. graph plotting software
661 AC_PATH_PROG(GRAPHVIZ, [Graphviz], [echo Graphviz])
662 if test "$GRAPHVIZ" != "echo Graphviz" ; then
663 AC_DEFINE([HAVE_GRAPHVIZ],[1],[Define if the Graphviz program is available])
664 dnl If we're targeting for mingw we should emit windows paths, not msys
665 if test "$llvm_cv_os_type" = "MingW" ; then
666 GRAPHVIZ=`echo $GRAPHVIZ | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
668 AC_DEFINE_UNQUOTED([LLVM_PATH_GRAPHVIZ],"$GRAPHVIZ${EXEEXT}",
669 [Define to path to Graphviz program if found or 'echo Graphviz' otherwise])
671 AC_PATH_PROG(DOT, [dot], [echo dot])
672 if test "$DOT" != "echo dot" ; then
673 AC_DEFINE([HAVE_DOT],[1],[Define if the dot program is available])
674 dnl If we're targeting for mingw we should emit windows paths, not msys
675 if test "$llvm_cv_os_type" = "MingW" ; then
676 DOT=`echo $DOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
678 AC_DEFINE_UNQUOTED([LLVM_PATH_DOT],"$DOT${EXEEXT}",
679 [Define to path to dot program if found or 'echo dot' otherwise])
681 AC_PATH_PROG(FDP, [fdp], [echo fdp])
682 if test "$FDP" != "echo fdp" ; then
683 AC_DEFINE([HAVE_FDP],[1],[Define if the neat program is available])
684 dnl If we're targeting for mingw we should emit windows paths, not msys
685 if test "$llvm_cv_os_type" = "MingW" ; then
686 FDP=`echo $FDP | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
688 AC_DEFINE_UNQUOTED([LLVM_PATH_FDP],"$FDP${EXEEXT}",
689 [Define to path to fdp program if found or 'echo fdp' otherwise])
691 AC_PATH_PROG(NEATO, [neato], [echo neato])
692 if test "$NEATO" != "echo neato" ; then
693 AC_DEFINE([HAVE_NEATO],[1],[Define if the neat program is available])
694 dnl If we're targeting for mingw we should emit windows paths, not msys
695 if test "$llvm_cv_os_type" = "MingW" ; then
696 NEATO=`echo $NEATO | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
698 AC_DEFINE_UNQUOTED([LLVM_PATH_NEATO],"$NEATO${EXEEXT}",
699 [Define to path to neato program if found or 'echo neato' otherwise])
701 AC_PATH_PROG(TWOPI, [twopi], [echo twopi])
702 if test "$TWOPI" != "echo twopi" ; then
703 AC_DEFINE([HAVE_TWOPI],[1],[Define if the neat program is available])
704 dnl If we're targeting for mingw we should emit windows paths, not msys
705 if test "$llvm_cv_os_type" = "MingW" ; then
706 TWOPI=`echo $TWOPI | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
708 AC_DEFINE_UNQUOTED([LLVM_PATH_TWOPI],"$TWOPI${EXEEXT}",
709 [Define to path to twopi program if found or 'echo twopi' otherwise])
711 AC_PATH_PROG(CIRCO, [circo], [echo circo])
712 if test "$CIRCO" != "echo circo" ; then
713 AC_DEFINE([HAVE_CIRCO],[1],[Define if the neat program is available])
714 dnl If we're targeting for mingw we should emit windows paths, not msys
715 if test "$llvm_cv_os_type" = "MingW" ; then
716 CIRCO=`echo $CIRCO | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
718 AC_DEFINE_UNQUOTED([LLVM_PATH_CIRCO],"$CIRCO${EXEEXT}",
719 [Define to path to circo program if found or 'echo circo' otherwise])
721 AC_PATH_PROGS(GV, [gv gsview32], [echo gv])
722 if test "$GV" != "echo gv" ; then
723 AC_DEFINE([HAVE_GV],[1],[Define if the gv program is available])
724 dnl If we're targeting for mingw we should emit windows paths, not msys
725 if test "$llvm_cv_os_type" = "MingW" ; then
726 GV=`echo $GV | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
728 AC_DEFINE_UNQUOTED([LLVM_PATH_GV],"$GV${EXEEXT}",
729 [Define to path to gv program if found or 'echo gv' otherwise])
731 AC_PATH_PROG(DOTTY, [dotty], [echo dotty])
732 if test "$DOTTY" != "echo dotty" ; then
733 AC_DEFINE([HAVE_DOTTY],[1],[Define if the dotty program is available])
734 dnl If we're targeting for mingw we should emit windows paths, not msys
735 if test "$llvm_cv_os_type" = "MingW" ; then
736 DOTTY=`echo $DOTTY | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
738 AC_DEFINE_UNQUOTED([LLVM_PATH_DOTTY],"$DOTTY${EXEEXT}",
739 [Define to path to dotty program if found or 'echo dotty' otherwise])
742 dnl Look for a sufficiently recent version of Perl.
743 LLVM_PROG_PERL([5.006])
745 if test x"$PERL" = xnone; then
746 AC_SUBST(HAVE_PERL,0)
747 AC_MSG_ERROR([perl is required but was not found, please install it])
749 AC_SUBST(HAVE_PERL,1)
752 dnl Find the install program
755 dnl Checks for documentation and testing tools that we can do without. If these
756 dnl are not found then they are set to "true" which always succeeds but does
757 dnl nothing. This just lets the build output show that we could have done
758 dnl something if the tool was available.
759 AC_PATH_PROG(BZIP2, [bzip2])
760 AC_PATH_PROG(DOXYGEN, [doxygen])
761 AC_PATH_PROG(GROFF, [groff])
762 AC_PATH_PROG(GZIP, [gzip])
763 AC_PATH_PROG(POD2HTML, [pod2html])
764 AC_PATH_PROG(POD2MAN, [pod2man])
765 AC_PATH_PROG(RUNTEST, [runtest])
767 AC_PATH_PROG(ZIP, [zip])
768 AC_PATH_PROGS(OCAMLC, [ocamlc])
769 AC_PATH_PROGS(OCAMLOPT, [ocamlopt])
770 AC_PATH_PROGS(OCAMLDEP, [ocamldep])
771 AC_PATH_PROGS(OCAMLDOC, [ocamldoc])
772 AC_PATH_PROGS(GAS, [gas as])
774 dnl Determine whether the linker supports the -R option.
777 dnl Determine whether the linker supports the -export-dynamic option.
778 AC_LINK_EXPORT_DYNAMIC
780 dnl Check for libtool and the library that has dlopen function (which must come
781 dnl before the AC_PROG_LIBTOOL check in order to enable dlopening libraries with
787 if test "$lt_cv_dlopen_self" = "yes" ; then
788 AC_DEFINE([CAN_DLOPEN_SELF],[1],
789 [Define if dlopen(0) will open the symbols of the program])
793 if test "$WITH_LLVMGCCDIR" = "default" ; then
794 LLVMGCC="llvm-gcc${EXEEXT}"
795 LLVMGXX="llvm-g++${EXEEXT}"
796 LLVMGCCCOMMAND="$LLVMGCC"
797 LLVMGXXCOMMAND="$LLVMGXX"
798 AC_SUBST(LLVMGCCCOMMAND,$LLVMGCCCOMMAND)
799 AC_SUBST(LLVMGXXCOMMAND,$LLVMGXXCOMMAND)
800 AC_PATH_PROG(LLVMGCC, $LLVMGCC, [])
801 AC_PATH_PROG(LLVMGXX, $LLVMGXX, [])
803 if test -z "$LLVMGCC"; then
804 LLVMGCC="$WITH_LLVMGCCDIR/bin/llvm-gcc${EXEEXT}"
805 LLVMGCCCOMMAND="$LLVMGCC"
807 if test -z "$LLVMGXX"; then
808 LLVMGXX="$WITH_LLVMGCCDIR/bin/llvm-g++${EXEEXT}"
809 LLVMGXXCOMMAND="$LLVMGXX"
812 AC_SUBST(LLVMGCC,$LLVMGCC)
813 AC_SUBST(LLVMGXX,$LLVMGXX)
814 AC_SUBST(LLVMGCCCOMMAND,$LLVMGCCCOMMAND)
815 AC_SUBST(LLVMGXXCOMMAND,$LLVMGXXCOMMAND)
819 AC_MSG_CHECKING([tool compatibility])
821 dnl Ensure that compilation tools are GCC or a GNU compatible compiler such as
822 dnl ICC; we use GCC specific options in the makefiles so the compiler needs
823 dnl to support those options.
824 dnl "icc" emits gcc signatures
825 dnl "icc -no-gcc" emits no gcc signature BUT is still compatible
837 if test "$GCC" != "yes" && test "$ICC" != "yes"
839 AC_MSG_ERROR([gcc|icc required but not found])
842 dnl Ensure that compilation tools are GCC; we use GCC specific extensions
843 if test "$GXX" != "yes" && test "$IXX" != "yes"
845 AC_MSG_ERROR([g++|icc required but not found])
848 dnl Verify that GCC is version 3.0 or higher
849 if test "$GCC" = "yes"
851 AC_COMPILE_IFELSE([[#if !defined(__GNUC__) || __GNUC__ < 3
852 #error Unsupported GCC version
854 ]], [], [AC_MSG_ERROR([gcc 3.x required, but you have a lower version])])
857 dnl Check for GNU Make. We use its extensions, so don't build without it
858 if test -z "$llvm_cv_gnu_make_command"
860 AC_MSG_ERROR([GNU Make required but not found])
863 dnl Tool compatibility is okay if we make it here.
866 dnl===-----------------------------------------------------------------------===
868 dnl=== SECTION 5: Check for libraries
870 dnl===-----------------------------------------------------------------------===
873 if test "$llvm_cv_os_type" = "MingW" ; then
874 AC_CHECK_LIB(imagehlp, main)
875 AC_CHECK_LIB(psapi, main)
878 dnl dlopen() is required for plugin support.
879 AC_SEARCH_LIBS(dlopen,dl,AC_DEFINE([HAVE_DLOPEN],[1],
880 [Define if dlopen() is available on this platform.]),
881 AC_MSG_WARN([dlopen() not found - disabling plugin support]))
883 dnl libffi is optional; used to call external functions from the interpreter
884 if test "$llvm_cv_enable_libffi" = "yes" ; then
885 AC_SEARCH_LIBS(ffi_call,ffi,AC_DEFINE([HAVE_FFI_CALL],[1],
886 [Define if libffi is available on this platform.]),
887 AC_MSG_WARN([libffi not found - disabling external calls from interpreter]))
890 dnl mallinfo is optional; the code can compile (minus features) without it
891 AC_SEARCH_LIBS(mallinfo,malloc,AC_DEFINE([HAVE_MALLINFO],[1],
892 [Define if mallinfo() is available on this platform.]))
894 dnl pthread locking functions are optional - but llvm will not be thread-safe
896 if test "$ENABLE_THREADS" -eq 1 ; then
897 AC_CHECK_LIB(pthread,pthread_mutex_init)
898 AC_SEARCH_LIBS(pthread_mutex_lock,pthread,
899 AC_DEFINE([HAVE_PTHREAD_MUTEX_LOCK],[1],
900 [Have pthread_mutex_lock]))
901 AC_SEARCH_LIBS(pthread_rwlock_init,pthread,
902 AC_DEFINE([HAVE_PTHREAD_RWLOCK_INIT],[1],
903 [Have pthread_rwlock_init]))
904 AC_SEARCH_LIBS(pthread_getspecific,pthread,
905 AC_DEFINE([HAVE_PTHREAD_GETSPECIFIC],[1],
906 [Have pthread_getspecific]))
909 dnl Allow extra x86-disassembler library
911 AS_HELP_STRING([--with-udis86=<path>],
912 [Use udis86 external x86 disassembler library]),
914 AC_SUBST(USE_UDIS86, [1])
917 *) LDFLAGS="$LDFLAGS -L${withval}" ;;
919 AC_CHECK_LIB(udis86, ud_init, [], [
920 echo "Error! You need to have libudis86 around."
924 AC_SUBST(USE_UDIS86, [0]))
925 AC_DEFINE_UNQUOTED([USE_UDIS86],$USE_UDIS86,
926 [Define if use udis86 library])
928 dnl Allow OProfile support for JIT output.
929 AC_ARG_WITH(oprofile,
930 AS_HELP_STRING([--with-oprofile=<prefix>],
931 [Tell OProfile >= 0.9.4 how to symbolize JIT output]),
933 AC_SUBST(USE_OPROFILE, [1])
935 /usr|yes) llvm_cv_oppath=/usr/lib/oprofile ;;
936 *) llvm_cv_oppath="${withval}/lib/oprofile"
937 CPPFLAGS="-I${withval}/include";;
939 LIBS="$LIBS -L${llvm_cv_oppath} -Wl,-rpath,${llvm_cv_oppath}"
940 AC_SEARCH_LIBS(op_open_agent, opagent, [], [
941 echo "Error! You need to have libopagent around."
944 AC_CHECK_HEADER([opagent.h], [], [
945 echo "Error! You need to have opagent.h around."
950 llvm_cv_old_LIBS="$LIBS"
951 LIBS="$LIBS -L/usr/lib/oprofile -Wl,-rpath,/usr/lib/oprofile"
952 dnl If either the library or header aren't present, omit oprofile support.
953 AC_SEARCH_LIBS(op_open_agent, opagent,
954 [AC_SUBST(USE_OPROFILE, [1])],
955 [LIBS="$llvm_cv_old_LIBS"
956 AC_SUBST(USE_OPROFILE, [0])])
957 AC_CHECK_HEADER([opagent.h], [], [
958 LIBS="$llvm_cv_old_LIBS"
959 AC_SUBST(USE_OPROFILE, [0])
962 AC_DEFINE_UNQUOTED([USE_OPROFILE],$USE_OPROFILE,
963 [Define if we have the oprofile JIT-support library])
965 dnl===-----------------------------------------------------------------------===
967 dnl=== SECTION 6: Check for header files
969 dnl===-----------------------------------------------------------------------===
971 dnl First, use autoconf provided macros for specific headers that we need
972 dnl We don't check for ancient stuff or things that are guaranteed to be there
973 dnl by the C++ standard. We always use the <cfoo> versions of <foo.h> C headers.
974 dnl Generally we're looking for POSIX headers.
976 AC_HEADER_MMAP_ANONYMOUS
982 AC_CHECK_HEADERS([dlfcn.h execinfo.h fcntl.h inttypes.h limits.h link.h])
983 AC_CHECK_HEADERS([malloc.h setjmp.h signal.h stdint.h termios.h unistd.h])
984 AC_CHECK_HEADERS([utime.h windows.h])
985 AC_CHECK_HEADERS([sys/mman.h sys/param.h sys/resource.h sys/time.h])
986 AC_CHECK_HEADERS([sys/types.h sys/ioctl.h malloc/malloc.h mach/mach.h])
987 if test "$ENABLE_THREADS" -eq 1 ; then
988 AC_CHECK_HEADERS(pthread.h,
989 AC_SUBST(HAVE_PTHREAD, 1),
990 AC_SUBST(HAVE_PTHREAD, 0))
992 AC_SUBST(HAVE_PTHREAD, 0)
995 dnl Try to find ffi.h.
996 if test "$llvm_cv_enable_libffi" = "yes" ; then
997 AC_CHECK_HEADERS([ffi.h ffi/ffi.h])
1000 dnl===-----------------------------------------------------------------------===
1002 dnl=== SECTION 7: Check for types and structures
1004 dnl===-----------------------------------------------------------------------===
1011 AC_CHECK_TYPES([int64_t],,AC_MSG_ERROR([Type int64_t required but not found]))
1012 AC_CHECK_TYPES([uint64_t],,
1013 AC_CHECK_TYPES([u_int64_t],,
1014 AC_MSG_ERROR([Type uint64_t or u_int64_t required but not found])))
1016 dnl===-----------------------------------------------------------------------===
1018 dnl=== SECTION 8: Check for specific functions needed
1020 dnl===-----------------------------------------------------------------------===
1022 AC_CHECK_FUNCS([backtrace ceilf floorf roundf rintf nearbyintf getcwd ])
1023 AC_CHECK_FUNCS([powf fmodf strtof round ])
1024 AC_CHECK_FUNCS([getpagesize getrusage getrlimit setrlimit gettimeofday ])
1025 AC_CHECK_FUNCS([isatty mkdtemp mkstemp ])
1026 AC_CHECK_FUNCS([mktemp realpath sbrk setrlimit strdup ])
1027 AC_CHECK_FUNCS([strerror strerror_r strerror_s ])
1028 AC_CHECK_FUNCS([strtoll strtoq sysconf malloc_zone_statistics ])
1029 AC_CHECK_FUNCS([setjmp longjmp sigsetjmp siglongjmp])
1034 dnl Check for variations in the Standard C++ library and STL. These macros are
1035 dnl provided by LLVM in the autoconf/m4 directory.
1036 AC_CXX_HAVE_STD_ITERATOR
1037 AC_CXX_HAVE_BI_ITERATOR
1038 AC_CXX_HAVE_FWD_ITERATOR
1042 dnl Check for mmap support.We also need to know if /dev/zero is required to
1043 dnl be opened for allocating RWX memory.
1044 dnl Make sure we aren't attempting to configure for an unknown system
1045 if test "$llvm_cv_platform_type" = "Unix" ; then
1048 AC_NEED_DEV_ZERO_FOR_MMAP
1050 if test "$ac_cv_func_mmap_fixed_mapped" = "no"
1052 AC_MSG_WARN([mmap() of a fixed address required but not supported])
1054 if test "$ac_cv_func_mmap_file" = "no"
1056 AC_MSG_WARN([mmap() of files required but not found])
1060 dnl atomic builtins are required for threading support.
1061 AC_MSG_CHECKING(for GCC atomic builtins)
1065 volatile unsigned long val = 1;
1066 __sync_synchronize();
1067 __sync_val_compare_and_swap(&val, 1, 0);
1068 __sync_add_and_fetch(&val, 1);
1069 __sync_sub_and_fetch(&val, 1);
1074 AC_DEFINE(LLVM_MULTITHREADED, 1, Build multithreading support into LLVM),
1076 AC_DEFINE(LLVM_MULTITHREADED, 0, Build multithreading support into LLVM)
1077 AC_MSG_WARN([LLVM will be built thread-unsafe because atomic builtins are missing]))
1080 dnl===-----------------------------------------------------------------------===
1082 dnl=== SECTION 9: Additional checks, variables, etc.
1084 dnl===-----------------------------------------------------------------------===
1086 dnl Check, whether __dso_handle is present
1087 AC_CHECK_FUNCS([__dso_handle])
1089 dnl See if the llvm-gcc executable can compile to LLVM assembly
1090 AC_CACHE_CHECK([whether llvm-gcc is sane],[llvm_cv_llvmgcc_sanity],
1091 [llvm_cv_llvmgcc_sanity="no"
1092 if test -x "$LLVMGCC" ; then
1093 cp /dev/null conftest.c
1094 "$LLVMGCC" -emit-llvm -S -o - conftest.c | \
1095 grep 'target datalayout =' > /dev/null 2>&1
1096 if test $? -eq 0 ; then
1097 llvm_cv_llvmgcc_sanity="yes"
1102 dnl Since we have a sane llvm-gcc, identify it and its sub-tools
1103 if test "$llvm_cv_llvmgcc_sanity" = "yes" ; then
1104 AC_MSG_CHECKING([llvm-gcc component support])
1105 llvmcc1path=`"$LLVMGCC" --print-prog-name=cc1`
1106 AC_SUBST(LLVMCC1,$llvmcc1path)
1107 llvmcc1pluspath=`"$LLVMGCC" --print-prog-name=cc1plus`
1108 AC_SUBST(LLVMCC1PLUS,$llvmcc1pluspath)
1109 llvmgccdir=`echo "$llvmcc1path" | sed 's,/libexec/.*,,'`
1110 AC_SUBST(LLVMGCCDIR,$llvmgccdir)
1111 llvmgcclibexec=`echo "$llvmcc1path" | sed 's,/cc1,,'`
1112 AC_SUBST(LLVMGCCLIBEXEC,$llvmgcclibexec)
1113 llvmgccversion=[`"$LLVMGCC" -dumpversion 2>&1 | sed 's/^\([0-9.]*\).*/\1/'`]
1114 llvmgccmajvers=[`echo $llvmgccversion | sed 's/^\([0-9]\).*/\1/'`]
1115 AC_SUBST(LLVMGCC_VERSION,$llvmgccversion)
1116 AC_SUBST(LLVMGCC_MAJVERS,$llvmgccmajvers)
1117 llvmgcclangs=[`"$LLVMGCC" -v --help 2>&1 | grep '^Configured with:' | sed 's/^.*--enable-languages=\([^ ]*\).*/\1/'`]
1118 AC_SUBST(LLVMGCC_LANGS,$llvmgcclangs)
1122 dnl Propagate the shared library extension that the libltdl checks did to
1123 dnl the Makefiles so we can use it there too
1124 AC_SUBST(SHLIBEXT,$libltdl_cv_shlibext)
1126 # Translate the various configuration directories and other basic
1127 # information into substitutions that will end up in Makefile.config.in
1128 # that these configured values can be used by the makefiles
1129 if test "${prefix}" = "NONE" ; then
1132 eval LLVM_PREFIX="${prefix}";
1133 eval LLVM_BINDIR="${prefix}/bin";
1134 eval LLVM_LIBDIR="${prefix}/lib";
1135 eval LLVM_DATADIR="${prefix}/share/llvm";
1136 eval LLVM_DOCSDIR="${prefix}/docs/llvm";
1137 eval LLVM_ETCDIR="${prefix}/etc/llvm";
1138 eval LLVM_INCLUDEDIR="${prefix}/include";
1139 eval LLVM_INFODIR="${prefix}/info";
1140 eval LLVM_MANDIR="${prefix}/man";
1141 LLVM_CONFIGTIME=`date`
1142 AC_SUBST(LLVM_PREFIX)
1143 AC_SUBST(LLVM_BINDIR)
1144 AC_SUBST(LLVM_LIBDIR)
1145 AC_SUBST(LLVM_DATADIR)
1146 AC_SUBST(LLVM_DOCSDIR)
1147 AC_SUBST(LLVM_ETCDIR)
1148 AC_SUBST(LLVM_INCLUDEDIR)
1149 AC_SUBST(LLVM_INFODIR)
1150 AC_SUBST(LLVM_MANDIR)
1151 AC_SUBST(LLVM_CONFIGTIME)
1153 # Place the various directores into the config.h file as #defines so that we
1154 # can know about the installation paths within LLVM.
1155 AC_DEFINE_UNQUOTED(LLVM_PREFIX,"$LLVM_PREFIX",
1156 [Installation prefix directory])
1157 AC_DEFINE_UNQUOTED(LLVM_BINDIR, "$LLVM_BINDIR",
1158 [Installation directory for binary executables])
1159 AC_DEFINE_UNQUOTED(LLVM_LIBDIR, "$LLVM_LIBDIR",
1160 [Installation directory for libraries])
1161 AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DATADIR",
1162 [Installation directory for data files])
1163 AC_DEFINE_UNQUOTED(LLVM_DOCSDIR, "$LLVM_DOCSDIR",
1164 [Installation directory for documentation])
1165 AC_DEFINE_UNQUOTED(LLVM_ETCDIR, "$LLVM_ETCDIR",
1166 [Installation directory for config files])
1167 AC_DEFINE_UNQUOTED(LLVM_INCLUDEDIR, "$LLVM_INCLUDEDIR",
1168 [Installation directory for include files])
1169 AC_DEFINE_UNQUOTED(LLVM_INFODIR, "$LLVM_INFODIR",
1170 [Installation directory for .info files])
1171 AC_DEFINE_UNQUOTED(LLVM_MANDIR, "$LLVM_MANDIR",
1172 [Installation directory for man pages])
1173 AC_DEFINE_UNQUOTED(LLVM_CONFIGTIME, "$LLVM_CONFIGTIME",
1174 [Time at which LLVM was configured])
1175 AC_DEFINE_UNQUOTED(LLVM_HOSTTRIPLE, "$host",
1176 [Host triple we were built on])
1178 # Determine which bindings to build.
1179 if test "$BINDINGS_TO_BUILD" = auto ; then
1180 BINDINGS_TO_BUILD=""
1181 if test "x$OCAMLC" != x -a "x$OCAMLDEP" != x ; then
1182 BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD"
1185 AC_SUBST(BINDINGS_TO_BUILD,$BINDINGS_TO_BUILD)
1187 # This isn't really configurey, but it avoids having to repeat the list in
1189 AC_SUBST(ALL_BINDINGS,ocaml)
1191 # Do any work necessary to ensure that bindings have what they need.
1192 binding_prereqs_failed=0
1193 for a_binding in $BINDINGS_TO_BUILD ; do
1194 case "$a_binding" in
1196 if test "x$OCAMLC" = x ; then
1197 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlc not found. Try configure OCAMLC=/path/to/ocamlc])
1198 binding_prereqs_failed=1
1200 if test "x$OCAMLDEP" = x ; then
1201 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamldep not found. Try configure OCAMLDEP=/path/to/ocamldep])
1202 binding_prereqs_failed=1
1204 if test "x$OCAMLOPT" = x ; then
1205 AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlopt not found. Try configure OCAMLOPT=/path/to/ocamlopt])
1206 dnl ocamlopt is optional!
1208 if test "x$with_ocaml_libdir" != xauto ; then
1209 AC_SUBST(OCAML_LIBDIR,$with_ocaml_libdir)
1211 ocaml_stdlib="`"$OCAMLC" -where`"
1212 if test "$LLVM_PREFIX" '<' "$ocaml_stdlib" -a "$ocaml_stdlib" '<' "$LLVM_PREFIX~"
1214 # ocaml stdlib is beneath our prefix; use stdlib
1215 AC_SUBST(OCAML_LIBDIR,$ocaml_stdlib)
1217 # ocaml stdlib is outside our prefix; use libdir/ocaml
1218 AC_SUBST(OCAML_LIBDIR,$LLVM_LIBDIR/ocaml)
1224 if test "$binding_prereqs_failed" = 1 ; then
1225 AC_MSG_ERROR([Prequisites for bindings not satisfied. Fix them or use configure --disable-bindings.])
1228 dnl Determine whether the compiler supports -fvisibility-inlines-hidden.
1229 AC_CXX_USE_VISIBILITY_INLINES_HIDDEN
1231 dnl Determine linker rpath flag
1232 if test "$llvm_cv_link_use_r" = "yes" ; then
1239 dnl Determine linker rdynamic flag
1240 if test "$llvm_cv_link_use_export_dynamic" = "yes" ; then
1241 RDYNAMIC="-Wl,-export-dynamic"
1247 dnl===-----------------------------------------------------------------------===
1249 dnl=== SECTION 10: Specify the output files and generate it
1251 dnl===-----------------------------------------------------------------------===
1253 dnl Configure header files
1254 dnl WARNING: dnl If you add or remove any of the following config headers, then
1255 dnl you MUST also update Makefile.rules so that the variable FilesToConfig
1256 dnl contains the same list of files as AC_CONFIG_HEADERS below. This ensures the
1257 dnl files can be updated automatically when their *.in sources change.
1258 AC_CONFIG_HEADERS([include/llvm/Config/config.h])
1259 AC_CONFIG_FILES([include/llvm/Config/Targets.def])
1260 AC_CONFIG_FILES([include/llvm/Config/AsmPrinters.def])
1261 AC_CONFIG_FILES([include/llvm/Config/AsmParsers.def])
1262 AC_CONFIG_HEADERS([include/llvm/Support/DataTypes.h])
1263 AC_CONFIG_HEADERS([include/llvm/ADT/iterator.h])
1265 dnl Configure the makefile's configuration data
1266 AC_CONFIG_FILES([Makefile.config])
1268 dnl Configure the RPM spec file for LLVM
1269 AC_CONFIG_FILES([llvm.spec])
1271 dnl Configure doxygen's configuration file
1272 AC_CONFIG_FILES([docs/doxygen.cfg])
1274 dnl Configure llvmc's Base plugin
1275 AC_CONFIG_FILES([tools/llvmc/plugins/Base/Base.td])
1277 dnl Do the first stage of configuration for llvm-config.in.
1278 AC_CONFIG_FILES([tools/llvm-config/llvm-config.in])
1280 dnl Do special configuration of Makefiles
1281 AC_CONFIG_COMMANDS([setup],,[llvm_src="${srcdir}"])
1282 AC_CONFIG_MAKEFILE(Makefile)
1283 AC_CONFIG_MAKEFILE(Makefile.common)
1284 AC_CONFIG_MAKEFILE(examples/Makefile)
1285 AC_CONFIG_MAKEFILE(lib/Makefile)
1286 AC_CONFIG_MAKEFILE(runtime/Makefile)
1287 AC_CONFIG_MAKEFILE(test/Makefile)
1288 AC_CONFIG_MAKEFILE(test/Makefile.tests)
1289 AC_CONFIG_MAKEFILE(unittests/Makefile)
1290 AC_CONFIG_MAKEFILE(tools/Makefile)
1291 AC_CONFIG_MAKEFILE(utils/Makefile)
1292 AC_CONFIG_MAKEFILE(projects/Makefile)
1293 AC_CONFIG_MAKEFILE(bindings/Makefile)
1294 AC_CONFIG_MAKEFILE(bindings/ocaml/Makefile.ocaml)
1296 dnl Finally, crank out the output