X-Git-Url: http://plrg.eecs.uci.edu/git/?p=oota-llvm.git;a=blobdiff_plain;f=autoconf%2Fconfigure.ac;h=86459b8f710d9b936db81f11bc9a23e63acffea5;hp=3f51f2d103ebac40912e2131dad8ceff5726a4b2;hb=b04776696359e54153e20c426419fe54b6766473;hpb=762236c04f706d1178a87d81107626c5c52eced0;ds=sidebyside diff --git a/autoconf/configure.ac b/autoconf/configure.ac index 3f51f2d103e..86459b8f710 100644 --- a/autoconf/configure.ac +++ b/autoconf/configure.ac @@ -1,12 +1,12 @@ dnl === configure.ac --------------------------------------------------------=== dnl The LLVM Compiler Infrastructure dnl -dnl This file was developed by the LLVM research group and is distributed under -dnl the University of Illinois Open Source License. See LICENSE.TXT for details. -dnl +dnl This file is distributed under the University of Illinois Open Source +dnl License. See LICENSE.TXT for details. +dnl dnl===-----------------------------------------------------------------------=== dnl This is the LLVM configuration script. It is processed by the autoconf -dnl program to produce a script named configure. This script contains the +dnl program to produce a script named configure. This script contains the dnl configuration checks that LLVM needs in order to support multiple platforms. dnl This file is composed of 10 sections per the recommended organization of dnl autoconf input defined in the autoconf documentation. As this file evolves, @@ -31,12 +31,12 @@ dnl=== dnl===-----------------------------------------------------------------------=== dnl Initialize autoconf and define the package name, version number and dnl email address for reporting bugs. -AC_INIT([[llvm]],[[1.7cvs]],[llvmbugs@cs.uiuc.edu]) +AC_INIT([[llvm]],[[2.3svn]],[llvmbugs@cs.uiuc.edu]) dnl Provide a copyright substitution and ensure the copyright notice is included dnl in the output of --version option of the generated configure script. -AC_SUBST(LLVM_COPYRIGHT,["Copyright (c) 2003-2005 University of Illinois at Urbana-Champaign."]) -AC_COPYRIGHT([Copyright (c) 2003-2005 University of Illinois at Urbana-Champaign.]) +AC_SUBST(LLVM_COPYRIGHT,["Copyright (c) 2003-2008 University of Illinois at Urbana-Champaign."]) +AC_COPYRIGHT([Copyright (c) 2003-2008 University of Illinois at Urbana-Champaign.]) dnl Indicate that we require autoconf 2.59 or later. Ths is needed because we dnl use some autoconf macros only available in 2.59. @@ -46,8 +46,8 @@ dnl Verify that the source directory is valid. This makes sure that we are dnl configuring LLVM and not some other package (it validates --srcdir argument) AC_CONFIG_SRCDIR([lib/VMCore/Module.cpp]) -dnl Place all of the extra autoconf files into the config subdirectory. Tell -dnl various tools where the m4 autoconf macros are. +dnl Place all of the extra autoconf files into the config subdirectory. Tell +dnl various tools where the m4 autoconf macros are. AC_CONFIG_AUX_DIR([autoconf]) dnl Quit if the source directory has already been configured. @@ -66,17 +66,19 @@ for i in `ls ${srcdir}/projects` do if test -d ${srcdir}/projects/${i} ; then case ${i} in - "CVS") ;; - "sample") AC_CONFIG_SUBDIRS([projects/sample]) ;; - "Stacker") AC_CONFIG_SUBDIRS([projects/Stacker]) ;; - "llvm-test") AC_CONFIG_SUBDIRS([projects/llvm-test]) ;; - "llvm-reopt") AC_CONFIG_SUBDIRS([projects/llvm-reopt]);; - "llvm-gcc") AC_CONFIG_SUBDIRS([projects/llvm-gcc]) ;; - "llvm-java") AC_CONFIG_SUBDIRS([projects/llvm-java]) ;; - "llvm-tv") AC_CONFIG_SUBDIRS([projects/llvm-tv]) ;; - "llvm-poolalloc") AC_CONFIG_SUBDIRS([projects/llvm-poolalloc]) ;; - "llvm-kernel") AC_CONFIG_SUBDIRS([projects/llvm-kernel]) ;; - *) + CVS) ;; + sample) AC_CONFIG_SUBDIRS([projects/sample]) ;; + privbracket) AC_CONFIG_SUBDIRS([projects/privbracket]) ;; + llvm-stacker) AC_CONFIG_SUBDIRS([projects/llvm-stacker]) ;; + llvm-test) AC_CONFIG_SUBDIRS([projects/llvm-test]) ;; + llvm-reopt) AC_CONFIG_SUBDIRS([projects/llvm-reopt]);; + llvm-gcc) AC_CONFIG_SUBDIRS([projects/llvm-gcc]) ;; + llvm-java) AC_CONFIG_SUBDIRS([projects/llvm-java]) ;; + llvm-tv) AC_CONFIG_SUBDIRS([projects/llvm-tv]) ;; + llvm-poolalloc) AC_CONFIG_SUBDIRS([projects/llvm-poolalloc]) ;; + poolalloc) AC_CONFIG_SUBDIRS([projects/poolalloc]) ;; + llvm-kernel) AC_CONFIG_SUBDIRS([projects/llvm-kernel]) ;; + *) AC_MSG_WARN([Unknown project (${i}) won't be configured automatically]) ;; esac @@ -90,48 +92,85 @@ dnl=== dnl===-----------------------------------------------------------------------=== dnl Check the target for which we're compiling and the host that will do the -dnl compilations. This will tell us which LLVM compiler will be used for -dnl compiling SSA into object code. This needs to be done early because +dnl compilations. This will tell us which LLVM compiler will be used for +dnl compiling SSA into object code. This needs to be done early because dnl following tests depend on it. AC_CANONICAL_TARGET dnl Determine the platform type and cache its value. This helps us configure dnl the System library to the correct build platform. -AC_CACHE_CHECK([type of operating system we're on], +AC_CACHE_CHECK([type of operating system we're going to host on], [llvm_cv_os_type], -[case $build in - *-*-aix*) - llvm_cv_os_type="AIX" +[case $host in + *-*-aix*) + llvm_cv_link_all_option="-Wl,--whole-archive" + llvm_cv_no_link_all_option="-Wl,--no-whole-archive" + llvm_cv_os_type="AIX" + llvm_cv_platform_type="Unix" ;; + *-*-irix*) + llvm_cv_link_all_option="-Wl,--whole-archive" + llvm_cv_no_link_all_option="-Wl,--no-whole-archive" + llvm_cv_os_type="IRIX" llvm_cv_platform_type="Unix" ;; - *-*-cygwin*) - llvm_cv_os_type="Cygwin" + *-*-cygwin*) + llvm_cv_link_all_option="-Wl,--whole-archive" + llvm_cv_no_link_all_option="-Wl,--no-whole-archive" + llvm_cv_os_type="Cygwin" llvm_cv_platform_type="Unix" ;; - *-*-darwin*) + *-*-darwin*) + llvm_cv_link_all_option="-Wl,-all_load" + llvm_cv_no_link_all_option="-Wl,-noall_load" llvm_cv_os_type="Darwin" llvm_cv_platform_type="Unix" ;; - *-*-freebsd*) - llvm_cv_os_type="FreeBSD" + *-*-freebsd*) + llvm_cv_link_all_option="-Wl,--whole-archive" + llvm_cv_no_link_all_option="-Wl,--no-whole-archive" + llvm_cv_os_type="FreeBSD" + llvm_cv_platform_type="Unix" ;; + *-*-openbsd*) + llvm_cv_link_all_option="-Wl,--whole-archive" + llvm_cv_no_link_all_option="-Wl,--no-whole-archive" + llvm_cv_os_type="OpenBSD" llvm_cv_platform_type="Unix" ;; - *-*-hpux*) - llvm_cv_os_type="HP-UX" + *-*-netbsd*) + llvm_cv_link_all_option="-Wl,--whole-archive" + llvm_cv_no_link_all_option="-Wl,--no-whole-archive" + llvm_cv_os_type="NetBSD" llvm_cv_platform_type="Unix" ;; - *-*-interix*) + *-*-hpux*) + llvm_cv_link_all_option="-Wl,--whole-archive" + llvm_cv_no_link_all_option="-Wl,--no-whole-archive" + llvm_cv_os_type="HP-UX" + llvm_cv_platform_type="Unix" ;; + *-*-interix*) + llvm_cv_link_all_option="-Wl,--whole-archive" + llvm_cv_no_link_all_option="-Wl,--no-whole-archive" llvm_cv_os_type="Interix" llvm_cv_platform_type="Unix" ;; - *-*-linux*) + *-*-linux*) + llvm_cv_link_all_option="-Wl,--whole-archive" + llvm_cv_no_link_all_option="-Wl,--no-whole-archive" llvm_cv_os_type="Linux" llvm_cv_platform_type="Unix" ;; - *-*-solaris*) + *-*-solaris*) + llvm_cv_link_all_option="-Wl,-z,allextract" + llvm_cv_no_link_all_option="-Wl,-z,defaultextract" llvm_cv_os_type="SunOS" llvm_cv_platform_type="Unix" ;; - *-*-win32*) + *-*-win32*) + llvm_cv_link_all_option="-Wl,--whole-archive" + llvm_cv_no_link_all_option="-Wl,--no-whole-archive" llvm_cv_os_type="Win32" llvm_cv_platform_type="Win32" ;; - *-*-mingw*) - llvm_cv_os_type="MingW" + *-*-mingw*) + llvm_cv_link_all_option="-Wl,--whole-archive" + llvm_cv_no_link_all_option="-Wl,--no-whole-archive" + llvm_cv_os_type="MingW" llvm_cv_platform_type="Win32" ;; - *) - llvm_cv_os_type="Unknown" + *) + llvm_cv_link_all_option="" + llvm_cv_no_link_all_option="" + llvm_cv_os_type="Unknown" llvm_cv_platform_type="Unknown" ;; esac]) @@ -144,17 +183,21 @@ dnl Set the "OS" Makefile variable based on the platform type so the dnl makefile can configure itself to specific build hosts AC_SUBST(OS,$llvm_cv_os_type) +dnl Set the LINKALL and NOLINKALL Makefile variables based on the platform +AC_SUBST(LINKALL,$llvm_cv_link_all_option) +AC_SUBST(NOLINKALL,$llvm_cv_no_link_all_option) + dnl Set the "LLVM_ON_*" variables based on llvm_cvs_platform_type dnl This is used by lib/System to determine the basic kind of implementation dnl to use. case $llvm_cv_platform_type in - Unix) - AC_DEFINE([LLVM_ON_UNIX],[1],[Define if this is Unixish platform]) + Unix) + AC_DEFINE([LLVM_ON_UNIX],[1],[Define if this is Unixish platform]) AC_SUBST(LLVM_ON_UNIX,[1]) AC_SUBST(LLVM_ON_WIN32,[0]) ;; - Win32) - AC_DEFINE([LLVM_ON_WIN32],[1],[Define if this is Win32ish platform]) + Win32) + AC_DEFINE([LLVM_ON_WIN32],[1],[Define if this is Win32ish platform]) AC_SUBST(LLVM_ON_UNIX,[0]) AC_SUBST(LLVM_ON_WIN32,[1]) ;; @@ -171,6 +214,8 @@ AC_CACHE_CHECK([target architecture],[llvm_cv_target_arch], powerpc*-*) llvm_cv_target_arch="PowerPC" ;; alpha*-*) llvm_cv_target_arch="Alpha" ;; ia64-*) llvm_cv_target_arch="IA64" ;; + arm-*) llvm_cv_target_arch="ARM" ;; + mips-*) llvm_cv_target_arch="Mips" ;; *) llvm_cv_target_arch="Unknown" ;; esac]) @@ -184,6 +229,29 @@ AC_SUBST(ARCH,$llvm_cv_target_arch) dnl Check for the endianness of the target AC_C_BIGENDIAN(AC_SUBST([ENDIAN],[big]),AC_SUBST([ENDIAN],[little])) +dnl Check for build platform executable suffix if we're crosscompiling +if test "$cross_compiling" = yes; then + AC_SUBST(LLVM_CROSS_COMPILING, [1]) + AC_BUILD_EXEEXT +else + AC_SUBST(LLVM_CROSS_COMPILING, [0]) +fi + +dnl Check to see if there's a "CVS" (or .svn) directory indicating that this +dnl build is being done from a checkout. This sets up several defaults for the +dnl command line switches. When we build with a CVS directory, we get a +dnl debug with assertions turned on. Without, we assume a source release and we +dnl get an optimized build without assertions. See --enable-optimized and +dnl --enable-assertions below +if test -d "CVS" -o -d "${srcdir}/CVS" -o -d ".svn" -o -d "${srcdir}/.svn"; then + cvsbuild="yes" + optimize="no" + AC_SUBST(CVSBUILD,[[CVSBUILD=1]]) +else + cvsbuild="no" + optimize="yes" +fi + dnl===-----------------------------------------------------------------------=== dnl=== dnl=== SECTION 3: Command line arguments for the configure script. @@ -191,14 +259,34 @@ dnl=== dnl===-----------------------------------------------------------------------=== dnl --enable-optimized : check whether they want to do an optimized build: -AC_ARG_ENABLE(optimized, - AS_HELP_STRING([--enable-optimized,Compile with optimizations enabled (default is NO)]),,enableval=no) +AC_ARG_ENABLE(optimized, AS_HELP_STRING( + [--enable-optimized,Compile with optimizations enabled (default is NO)]),,enableval=$optimize) if test ${enableval} = "no" ; then AC_SUBST(ENABLE_OPTIMIZED,[[]]) else AC_SUBST(ENABLE_OPTIMIZED,[[ENABLE_OPTIMIZED=1]]) fi +dnl --enable-assertions : check whether they want to turn on assertions or not: +AC_ARG_ENABLE(assertions,AS_HELP_STRING( + [--enable-assertions,Compile with assertion checks enabled (default is YES)]),, enableval="yes") +if test ${enableval} = "yes" ; then + AC_SUBST(DISABLE_ASSERTIONS,[[]]) +else + AC_SUBST(DISABLE_ASSERTIONS,[[DISABLE_ASSERTIONS=1]]) +fi + +dnl --enable-expensive-checks : check whether they want to turn on expensive debug checks: +AC_ARG_ENABLE(expensive-checks,AS_HELP_STRING( + [--enable-expensive-checks,Compile with expensive debug checks enabled (default is NO)]),, enableval="no") +if test ${enableval} = "yes" ; then + AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[ENABLE_EXPENSIVE_CHECKS=1]]) + AC_SUBST(EXPENSIVE_CHECKS,[[yes]]) +else + AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[]]) + AC_SUBST(EXPENSIVE_CHECKS,[[no]]) +fi + dnl --enable-debug-runtime : should runtime libraries have debug symbols? AC_ARG_ENABLE(debug-runtime, AS_HELP_STRING([--enable-debug-runtime,Build runtime libs with debug symbols (default is NO)]),,enableval=no) @@ -218,13 +306,15 @@ then AC_SUBST(JIT,[[]]) else case "$llvm_cv_target_arch" in - x86) AC_SUBST(JIT,[[TARGET_HAS_JIT=1]]) ;; - Sparc) AC_SUBST(JIT,[[TARGET_HAS_JIT=1]]) ;; - PowerPC) AC_SUBST(JIT,[[TARGET_HAS_JIT=1]]) ;; - x86_64) AC_SUBST(JIT,[[]]) ;; - Alpha) AC_SUBST(JIT,[[TARGET_HAS_JIT=1]]) ;; - IA64) AC_SUBST(JIT,[[]]) ;; - *) AC_SUBST(JIT,[[]]) ;; + x86) AC_SUBST(TARGET_HAS_JIT,1) ;; + Sparc) AC_SUBST(TARGET_HAS_JIT,0) ;; + PowerPC) AC_SUBST(TARGET_HAS_JIT,1) ;; + x86_64) AC_SUBST(TARGET_HAS_JIT,1) ;; + Alpha) AC_SUBST(TARGET_HAS_JIT,1) ;; + IA64) AC_SUBST(TARGET_HAS_JIT,0) ;; + ARM) AC_SUBST(TARGET_HAS_JIT,0) ;; + Mips) AC_SUBST(TARGET_HAS_JIT,0) ;; + *) AC_SUBST(TARGET_HAS_JIT,0) ;; esac fi @@ -244,49 +334,85 @@ dnl Allow disablement of threads AC_ARG_ENABLE(threads, AS_HELP_STRING([--enable-threads], [Use threads if available (default is YES)]),, - enableval=yes) + enableval=default) case "$enableval" in yes) AC_SUBST(ENABLE_THREADS,[1]) ;; no) AC_SUBST(ENABLE_THREADS,[0]) ;; + default) AC_SUBST(ENABLE_THREADS,[1]) ;; *) AC_MSG_ERROR([Invalid setting for --enable-threads. Use "yes" or "no"]) ;; esac AC_DEFINE_UNQUOTED([ENABLE_THREADS],$ENABLE_THREADS,[Define if threads enabled]) +dnl Allow building with position independent code +AC_ARG_ENABLE(pic, + AS_HELP_STRING([--enable-pic], + [Build LLVM with Position Independent Code (default is NO)]),, + enableval=default) +case "$enableval" in + yes) AC_SUBST(ENABLE_PIC,[1]) ;; + no) AC_SUBST(ENABLE_PIC,[0]) ;; + default) AC_SUBST(ENABLE_PIC,[0]) ;; + *) AC_MSG_ERROR([Invalid setting for --enable-pic. Use "yes" or "no"]) ;; +esac +AC_DEFINE_UNQUOTED([ENABLE_PIC],$ENABLE_PIC, + [Define if position independent code is enabled]) + dnl Allow specific targets to be specified for building (or not) TARGETS_TO_BUILD="" -AC_ARG_ENABLE([targets],AS_HELP_STRING([--enable-target], +AC_ARG_ENABLE([targets],AS_HELP_STRING([--enable-targets], [Build specific host targets: all,host-only,{target-name} (default=all)]),, enableval=all) case "$enableval" in - all) TARGETS_TO_BUILD="X86 Sparc SparcV9 PowerPC Alpha IA64 Skeleton" ;; + all) TARGETS_TO_BUILD="X86 Sparc PowerPC Alpha IA64 ARM Mips CellSPU CBackend MSIL" ;; host-only) case "$llvm_cv_target_arch" in x86) TARGETS_TO_BUILD="X86" ;; x86_64) TARGETS_TO_BUILD="X86" ;; - Sparc) TARGETS_TO_BUILD="Sparc SparcV9" ;; + Sparc) TARGETS_TO_BUILD="Sparc" ;; PowerPC) TARGETS_TO_BUILD="PowerPC" ;; Alpha) TARGETS_TO_BUILD="Alpha" ;; IA64) TARGETS_TO_BUILD="IA64" ;; + ARM) TARGETS_TO_BUILD="ARM" ;; + Mips) TARGETS_TO_BUILD="Mips" ;; + CellSPU|SPU) TARGETS_TO_BUILD="CellSPU" ;; *) AC_MSG_ERROR([Can not set target to build]) ;; - esac + esac ;; *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do case "$a_target" in x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;; x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;; - sparc) TARGETS_TO_BUILD="Sparc SparcV9 $TARGETS_TO_BUILD" ;; + sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;; powerpc) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;; alpha) TARGETS_TO_BUILD="Alpha $TARGETS_TO_BUILD" ;; ia64) TARGETS_TO_BUILD="IA64 $TARGETS_TO_BUILD" ;; - skeleton)TARGETS_TO_BUILD="Skeleton $TARGETS_TO_BUILD";; + arm) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;; + mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;; + spu) TARGETS_TO_BUILD="CellSPU $TARGETS_TO_BUILD" ;; + cbe) TARGETS_TO_BUILD="CBackend $TARGETS_TO_BUILD" ;; + msil) TARGETS_TO_BUILD="MSIL $TARGETS_TO_BUILD" ;; *) AC_MSG_ERROR([Unrecognized target $a_target]) ;; esac - done + done ;; esac -TARGETS_TO_BUILD="CBackend $TARGETS_TO_BUILD" AC_SUBST(TARGETS_TO_BUILD,$TARGETS_TO_BUILD) +dnl Prevent the CBackend from using printf("%a") for floating point so older +dnl C compilers that cannot deal with the 0x0p+0 hex floating point format +dnl can still compile the CBE's output +AC_ARG_ENABLE([cbe-printf-a],AS_HELP_STRING([--enable-cbe-printf-a], + [Enable C Backend output with hex floating point via %a (default is YES)]),, + enableval=default) +case "$enableval" in + yes) AC_SUBST(ENABLE_CBE_PRINTF_A,[1]) ;; + no) AC_SUBST(ENABLE_CBE_PRINTF_A,[0]) ;; + default) AC_SUBST(ENABLE_CBE_PRINTF_A,[1]) ;; + *) AC_MSG_ERROR([Invalid setting for --enable-cbe-printf-a. Use "yes" or "no"]) ;; +esac +AC_DEFINE_UNQUOTED([ENABLE_CBE_PRINTF_A],$ENABLE_CBE_PRINTF_A, + [Define if CBE is enabled for printf %a output]) + dnl Allow a specific llvm-gcc/llvm-g++ pair to be used with this LLVM config. AC_ARG_WITH(llvmgccdir, AS_HELP_STRING([--with-llvmgccdir], @@ -294,10 +420,74 @@ AC_ARG_WITH(llvmgccdir, withval=default) case "$withval" in default) WITH_LLVMGCCDIR=default ;; - /*) WITH_LLVMGCCDIR=$withval ;; + /* | [[A-Za-z]]:[[\\/]]*) WITH_LLVMGCCDIR=$withval ;; *) AC_MSG_ERROR([Invalid path for --with-llvmgccdir. Provide full path]) ;; esac +dnl Allow a specific llvm-gcc compiler to be used with this LLVM config. +AC_ARG_WITH(llvmgcc, + AS_HELP_STRING([--with-llvmgcc], + [Specify location of llvm-gcc driver (default searches PATH)]), + LLVMGCC=$with_llvmgcc + WITH_LLVMGCCDIR="",) + +dnl Allow a specific llvm-g++ compiler to be used with this LLVM config. +AC_ARG_WITH(llvmgxx, + AS_HELP_STRING([--with-llvmgxx], + [Specify location of llvm-g++ driver (default searches PATH)]), + LLVMGXX=$with_llvmgxx + WITH_LLVMGCCDIR="",) + +if test -n "$LLVMGCC" && test -z "$LLVMGXX"; then + AC_MSG_ERROR([Invalid llvm-g++. Use --with-llvmgxx when --with-llvmgcc is used]); +fi + +if test -n "$LLVMGXX" && test -z "$LLVMGCC"; then + AC_MSG_ERROR([Invalid llvm-gcc. Use --with-llvmgcc when --with-llvmgxx is used]); +fi + +dnl Specify extra build options +AC_ARG_WITH(extra-options, + AS_HELP_STRING([--with-extra-options], + [Specify addtional options to compile LLVM with]),, + withval=default) +case "$withval" in + default) EXTRA_OPTIONS= ;; + *) EXTRA_OPTIONS=$withval ;; +esac +AC_SUBST(EXTRA_OPTIONS,$EXTRA_OPTIONS) + +dnl Allow specific bindings to be specified for building (or not) +AC_ARG_ENABLE([bindings],AS_HELP_STRING([--enable-bindings], + [Build specific language bindings: all,auto,none,{binding-name} (default=auto)]),, + enableval=default) +BINDINGS_TO_BUILD="" +case "$enableval" in + yes | default | auto) BINDINGS_TO_BUILD="auto" ;; + all ) BINDINGS_TO_BUILD="ocaml" ;; + none | no) BINDINGS_TO_BUILD="" ;; + *)for a_binding in `echo $enableval|sed -e 's/,/ /g' ` ; do + case "$a_binding" in + ocaml) BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD" ;; + *) AC_MSG_ERROR([Unrecognized binding $a_binding]) ;; + esac + done + ;; +esac + +dnl Allow the ocaml libdir to be overridden. This could go in a configure +dnl script for bindings/ocaml/configure, except that its auto value depends on +dnl OCAMLC, which is found here to support tests. +AC_ARG_WITH([ocaml-libdir], + [AS_HELP_STRING([--with-ocaml-libdir], + [Specify install location for ocaml bindings (default is stdlib)])], + [], + [withval=auto]) +case "$withval" in + auto) with_ocaml_libdir="$withval" ;; + /* | [[A-Za-z]]:[[\\/]]*) with_ocaml_libdir="$withval" ;; + *) AC_MSG_ERROR([Invalid path for --with-ocaml-libdir. Provide full path]) ;; +esac dnl===-----------------------------------------------------------------------=== dnl=== @@ -312,6 +502,9 @@ AC_PROG_CXX(g++) AC_PROG_FLEX AC_PROG_BISON +AC_PROG_NM +AC_SUBST(NM) + dnl Check for the tools that the makefiles require AC_CHECK_GNU_MAKE AC_PROG_LN_S @@ -326,37 +519,80 @@ AC_PROG_RANLIB AC_PATH_PROG(RM, [rm], [rm]) AC_PATH_PROG(SED, [sed], [sed]) AC_PATH_PROG(TAR, [tar], [gtar]) +AC_PATH_PROG(BINPWD,[pwd], [pwd]) + +dnl Looking for misc. graph plotting software AC_PATH_PROG(GRAPHVIZ, [Graphviz], [echo Graphviz]) if test "$GRAPHVIZ" != "echo Graphviz" ; then AC_DEFINE([HAVE_GRAPHVIZ],[1],[Define if the Graphviz program is available]) - AC_DEFINE_UNQUOTED([LLVM_PATH_GRAPHVIZ],"$GRAPHVIZ", + dnl If we're targeting for mingw we should emit windows paths, not msys + if test "$llvm_cv_os_type" = "MingW" ; then + GRAPHVIZ=`echo $GRAPHVIZ | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' ` + fi + AC_DEFINE_UNQUOTED([LLVM_PATH_GRAPHVIZ],"$GRAPHVIZ${EXEEXT}", [Define to path to Graphviz program if found or 'echo Graphviz' otherwise]) fi -AC_PATH_PROG(GV, [gv], [echo gv]) +AC_PATH_PROG(DOT, [dot], [echo dot]) +if test "$DOT" != "echo dot" ; then + AC_DEFINE([HAVE_DOT],[1],[Define if the dot program is available]) + dnl If we're targeting for mingw we should emit windows paths, not msys + if test "$llvm_cv_os_type" = "MingW" ; then + DOT=`echo $DOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' ` + fi + AC_DEFINE_UNQUOTED([LLVM_PATH_DOT],"$DOT${EXEEXT}", + [Define to path to dot program if found or 'echo dot' otherwise]) +fi +AC_PATH_PROGS(GV, [gv gsview32], [echo gv]) if test "$GV" != "echo gv" ; then AC_DEFINE([HAVE_GV],[1],[Define if the gv program is available]) - AC_DEFINE_UNQUOTED([LLVM_PATH_GV],"$GV", + dnl If we're targeting for mingw we should emit windows paths, not msys + if test "$llvm_cv_os_type" = "MingW" ; then + GV=`echo $GV | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' ` + fi + AC_DEFINE_UNQUOTED([LLVM_PATH_GV],"$GV${EXEEXT}", [Define to path to gv program if found or 'echo gv' otherwise]) fi +AC_PATH_PROG(DOTTY, [dotty], [echo dotty]) +if test "$DOTTY" != "echo dotty" ; then + AC_DEFINE([HAVE_DOTTY],[1],[Define if the dotty program is available]) + dnl If we're targeting for mingw we should emit windows paths, not msys + if test "$llvm_cv_os_type" = "MingW" ; then + DOTTY=`echo $DOTTY | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' ` + fi + AC_DEFINE_UNQUOTED([LLVM_PATH_DOTTY],"$DOTTY${EXEEXT}", + [Define to path to dotty program if found or 'echo dotty' otherwise]) +fi + +dnl Look for a sufficiently recent version of Perl. +LLVM_PROG_PERL([5.006]) +AC_SUBST(PERL) +if test x"$PERL" = xnone; then + AC_SUBST(HAVE_PERL,0) + AC_MSG_ERROR([perl is required but was not found, please install it]) +else + AC_SUBST(HAVE_PERL,1) +fi dnl Find the install program AC_PROG_INSTALL dnl Checks for documentation and testing tools that we can do without. If these dnl are not found then they are set to "true" which always succeeds but does -dnl nothing. This just lets the build output show that we could have done -dnl something if the tool was available. -AC_PATH_PROG(BZIP2,[bzip2],[true bzip2]) -AC_PATH_PROG(DOT,[dot],[true dot]) -AC_PATH_PROG(DOXYGEN,[doxygen],[true doxygen]) -AC_PATH_PROG(ETAGS,[etags],[true etags]) -AC_PATH_PROG(GROFF,[groff],[true groff]) -AC_PATH_PROG(GZIP,[gzip],[true gzip]) -AC_PATH_PROG(POD2HTML,[pod2html],[true pod2html]) -AC_PATH_PROG(POD2MAN,[pod2man],[true pod2man]) -AC_PATH_PROG(RUNTEST,[runtest],[true runtest]) +dnl nothing. This just lets the build output show that we could have done +dnl something if the tool was available. +AC_PATH_PROG(BZIP2, [bzip2]) +AC_PATH_PROG(DOXYGEN, [doxygen]) +AC_PATH_PROG(GROFF, [groff]) +AC_PATH_PROG(GZIP, [gzip]) +AC_PATH_PROG(POD2HTML, [pod2html]) +AC_PATH_PROG(POD2MAN, [pod2man]) +AC_PATH_PROG(RUNTEST, [runtest]) DJ_AC_PATH_TCLSH -AC_PATH_PROG(ZIP,[zip],[true zip]) +AC_PATH_PROG(ZIP, [zip]) +AC_PATH_PROGS(OCAMLC, [ocamlc.opt ocamlc]) +AC_PATH_PROGS(OCAMLOPT, [ocamlopt.opt ocamlopt]) +AC_PATH_PROGS(OCAMLDEP, [ocamldep.opt ocamldep]) +AC_PATH_PROGS(OCAMLDOC, [ocamldoc.opt ocamldoc]) dnl Determine if the linker supports the -R option. AC_LINK_USE_R @@ -373,27 +609,22 @@ if test "$lt_cv_dlopen_self" = "yes" ; then [Define if dlopen(0) will open the symbols of the program]) fi -dnl Check if we know how to tell etags we are using C++: -etags_version=`$ETAGS --version 2>&1` -case "$etags_version" in - *[Ee]xuberant*) ETAGSFLAGS="--language-force=c++" ;; - *GNU\ Emacs*) ETAGSFLAGS="-l c++" ;; - *) ETAGSFLAGS="" ;; -esac -AC_SUBST(ETAGSFLAGS,$ETAGSFLAGS) - if test "$WITH_LLVMGCCDIR" = "default" ; then LLVMGCC="llvm-gcc${EXEEXT}" LLVMGXX="llvm-g++${EXEEXT}" AC_PATH_PROG(LLVMGCC, $LLVMGCC, []) AC_PATH_PROG(LLVMGXX, $LLVMGXX, []) else - LLVMGCC="$WITH_LLVMGCCDIR/bin/llvm-gcc${EXEEXT}" - LLVMGXX="$WITH_LLVMGCCDIR/bin/llvm-g++${EXEEXT}" + if test -z "$LLVMGCC"; then + LLVMGCC="$WITH_LLVMGCCDIR/bin/llvm-gcc${EXEEXT}" + fi + if test -z "$LLVMGXX"; then + LLVMGXX="$WITH_LLVMGCCDIR/bin/llvm-g++${EXEEXT}" + fi AC_SUBST(LLVMGCC,$LLVMGCC) AC_SUBST(LLVMGXX,$LLVMGXX) fi - + AC_MSG_CHECKING([tool compatibility]) dnl Ensure that compilation tools are GCC or a GNU compatible compiler such as @@ -404,7 +635,7 @@ dnl "icc -no-gcc" emits no gcc signature BUT is still compatible ICC=no IXX=no case $CC in - icc*|icpc*) + icc*|icpc*) ICC=yes IXX=yes ;; @@ -426,11 +657,10 @@ fi dnl Verify that GCC is version 3.0 or higher if test "$GCC" = "yes" then - gccmajor=`$CC --version | head -n 1 | sed 's/[[^0-9]]*\([[0-9.]]\).*/\1/'` - if test "$gccmajor" -lt "3" - then - AC_MSG_ERROR([gcc 3.x required, but you have a lower version]) - fi + AC_COMPILE_IFELSE([[#if !defined(__GNUC__) || __GNUC__ < 3 +#error Unsupported GCC version +#endif +]], [], [AC_MSG_ERROR([gcc 3.x required, but you have a lower version])]) fi dnl Check for GNU Make. We use its extensions, so don't build without it @@ -451,12 +681,10 @@ dnl===-----------------------------------------------------------------------=== dnl libelf is for sparc only; we can ignore it if we don't have it AC_CHECK_LIB(elf, elf_begin) AC_CHECK_LIB(m,sin) - -dnl lt_dlopen may be required for plugin support. -AC_SEARCH_LIBS(lt_dlopen,ltdl,AC_DEFINE([HAVE_LT_DLOPEN],[1], - [Define if lt_dlopen() is available on this platform]), - AC_MSG_WARN([lt_dlopen() not found - plugin support might - not be available])) +if test "$llvm_cv_os_type" = "MingW" ; then + AC_CHECK_LIB(imagehlp, main) + AC_CHECK_LIB(psapi, main) +fi dnl dlopen() is required for plugin support. AC_SEARCH_LIBS(dlopen,dl,AC_DEFINE([HAVE_DLOPEN],[1], @@ -476,6 +704,25 @@ if test "$ENABLE_THREADS" -eq 1 ; then [Have pthread_mutex_lock])) fi +dnl Allow extra x86-disassembler library +AC_ARG_WITH(udis86, + AS_HELP_STRING([--with-udis86=], + [Use udis86 external x86 disassembler library]), + [ + AC_SUBST(USE_UDIS86, [1]) + case "$withval" in + /usr/lib|yes) ;; + *) LDFLAGS="$LDFLAGS -L${withval}" ;; + esac + AC_CHECK_LIB(udis86, ud_init, [], [ + echo "Error! You need to have libudis86 around." + exit -1 + ]) + ], + AC_SUBST(USE_UDIS86, [0])) +AC_DEFINE_UNQUOTED([USE_UDIS86],$USE_UDIS86, + [Define if use udis86 library]) + dnl===-----------------------------------------------------------------------=== dnl=== dnl=== SECTION 6: Check for header files @@ -494,11 +741,16 @@ AC_HEADER_SYS_WAIT AC_HEADER_TIME AC_CHECK_HEADERS([dlfcn.h execinfo.h fcntl.h inttypes.h limits.h link.h]) -AC_CHECK_HEADERS([malloc.h signal.h stdint.h unistd.h utime.h windows.h]) -AC_CHECK_HEADERS([sys/mman.h sys/param.h sys/resource.h sys/time.h sys/types.h]) -AC_CHECK_HEADERS([malloc/malloc.h]) +AC_CHECK_HEADERS([malloc.h setjmp.h signal.h stdint.h unistd.h utime.h]) +AC_CHECK_HEADERS([windows.h]) +AC_CHECK_HEADERS([sys/mman.h sys/param.h sys/resource.h sys/time.h]) +AC_CHECK_HEADERS([sys/types.h malloc/malloc.h mach/mach.h]) if test "$ENABLE_THREADS" -eq 1 ; then - AC_CHECK_HEADERS(pthread.h) + AC_CHECK_HEADERS(pthread.h, + AC_SUBST(HAVE_PTHREAD, 1), + AC_SUBST(HAVE_PTHREAD, 0)) +else + AC_SUBST(HAVE_PTHREAD, 0) fi dnl===-----------------------------------------------------------------------=== @@ -507,6 +759,7 @@ dnl=== SECTION 7: Check for types and structures dnl=== dnl===-----------------------------------------------------------------------=== +AC_HUGE_VAL_CHECK AC_TYPE_PID_T AC_TYPE_SIZE_T AC_TYPE_SIGNAL @@ -523,9 +776,12 @@ dnl=== dnl===-----------------------------------------------------------------------=== AC_CHECK_FUNCS([backtrace ceilf floorf roundf rintf nearbyintf getcwd ]) -AC_CHECK_FUNCS([getpagesize getrusage gettimeofday isatty mkdtemp mkstemp ]) +AC_CHECK_FUNCS([powf fmodf strtof round ]) +AC_CHECK_FUNCS([getpagesize getrusage getrlimit setrlimit gettimeofday ]) +AC_CHECK_FUNCS([isatty mkdtemp mkstemp ]) AC_CHECK_FUNCS([mktemp realpath sbrk setrlimit strdup strerror strerror_r ]) AC_CHECK_FUNCS([strtoll strtoq sysconf malloc_zone_statistics ]) +AC_CHECK_FUNCS([setjmp longjmp sigsetjmp siglongjmp]) AC_C_PRINTF_A AC_FUNC_ALLOCA AC_FUNC_RAND48 @@ -540,22 +796,22 @@ AC_CXX_HAVE_FWD_ITERATOR AC_FUNC_ISNAN AC_FUNC_ISINF -dnl Check for mmap and mprotect support. We need both to do the JIT and for -dnl bytecode loading, etc. We also need to know if /dev/zero is required to +dnl Check for mmap support.We also need to know if /dev/zero is required to dnl be opened for allocating RWX memory. -AC_FUNC_MMAP -AC_FUNC_MMAP_FILE -AC_NEED_DEV_ZERO_FOR_MMAP -AC_CHECK_FUNC(mprotect,, - AC_MSG_ERROR([Function mprotect() required but not found])) +dnl Make sure we aren't attempting to configure for an unknown system +if test "$llvm_cv_platform_type" = "Unix" ; then + AC_FUNC_MMAP + AC_FUNC_MMAP_FILE + AC_NEED_DEV_ZERO_FOR_MMAP -if test "$ac_cv_func_mmap_fixed_mapped" = "no" -then - AC_MSG_WARN([mmap() of a fixed address required but not supported]) -fi -if test "$ac_cv_func_mmap_file" = "no" -then - AC_MSG_WARN([mmap() of files required but not found]) + if test "$ac_cv_func_mmap_fixed_mapped" = "no" + then + AC_MSG_WARN([mmap() of a fixed address required but not supported]) + fi + if test "$ac_cv_func_mmap_file" = "no" + then + AC_MSG_WARN([mmap() of files required but not found]) + fi fi dnl===-----------------------------------------------------------------------=== @@ -564,35 +820,52 @@ dnl=== SECTION 9: Additional checks, variables, etc. dnl=== dnl===-----------------------------------------------------------------------=== +dnl Check, whether __dso_handle is present +AC_CHECK_FUNCS([__dso_handle]) + dnl See if the llvm-gcc executable can compile to LLVM assembly AC_CACHE_CHECK([whether llvm-gcc is sane],[llvm_cv_llvmgcc_sanity], [llvm_cv_llvmgcc_sanity="no" if test -x "$LLVMGCC" ; then cp /dev/null conftest.c - "$LLVMGCC" -S -o - conftest.c | grep implementation > /dev/null 2>&1 + "$LLVMGCC" -emit-llvm -S -o - conftest.c | \ + grep 'target datalayout =' > /dev/null 2>&1 if test $? -eq 0 ; then llvm_cv_llvmgcc_sanity="yes" fi rm conftest.c fi]) -dnl Since we have a sane llvm-gcc, identify it and its sub-tools +dnl Since we have a sane llvm-gcc, identify it and its sub-tools if test "$llvm_cv_llvmgcc_sanity" = "yes" ; then + AC_MSG_CHECKING([llvm-gcc component support]) llvmcc1path=`"$LLVMGCC" --print-prog-name=cc1` AC_SUBST(LLVMCC1,$llvmcc1path) llvmcc1pluspath=`"$LLVMGCC" --print-prog-name=cc1plus` AC_SUBST(LLVMCC1PLUS,$llvmcc1pluspath) llvmgccdir=`echo "$llvmcc1path" | sed 's,/libexec/.*,,'` AC_SUBST(LLVMGCCDIR,$llvmgccdir) + llvmgcclibexec=`echo "$llvmcc1path" | sed 's,/cc1,,'` + AC_SUBST(LLVMGCCLIBEXEC,$llvmgcclibexec) + llvmgccversion=[`"$LLVMGCC" -dumpversion 2>&1 | sed 's/^\([0-9.]*\).*/\1/'`] + llvmgccmajvers=[`echo $llvmgccversion | sed 's/^\([0-9]\).*/\1/'`] + AC_SUBST(LLVMGCC_VERSION,$llvmgccversion) + AC_SUBST(LLVMGCC_MAJVERS,$llvmgccmajvers) + llvmgcclangs=[`"$LLVMGCC" -v --help 2>&1 | grep '^Configured with:' | sed 's/^.*--enable-languages=\([^ -]*\).*/\1/'`] + AC_SUBST(LLVMGCC_LANGS,$llvmgcclangs) + AC_MSG_RESULT([ok]) fi -dnl Propagate the shared library extension that the libltdl checks did to +dnl Propagate the shared library extension that the libltdl checks did to dnl the Makefiles so we can use it there too AC_SUBST(SHLIBEXT,$libltdl_cv_shlibext) # Translate the various configuration directories and other basic -# information into substitutions that will end up in Makefile.config.in +# information into substitutions that will end up in Makefile.config.in # that these configured values can be used by the makefiles +if test "${prefix}" = "NONE" ; then + prefix="/usr/local" +fi eval LLVM_PREFIX="${prefix}"; eval LLVM_BINDIR="${prefix}/bin"; eval LLVM_LIBDIR="${prefix}/lib"; @@ -616,26 +889,79 @@ AC_SUBST(LLVM_CONFIGTIME) # Place the various directores into the config.h file as #defines so that we # can know about the installation paths within LLVM. -AC_DEFINE_UNQUOTED(LLVM_PREFIX,"$LLVM_PREFIX", +AC_DEFINE_UNQUOTED(LLVM_PREFIX,"$LLVM_PREFIX", [Installation prefix directory]) -AC_DEFINE_UNQUOTED(LLVM_BINDIR, "$LLVM_BINDIR", +AC_DEFINE_UNQUOTED(LLVM_BINDIR, "$LLVM_BINDIR", [Installation directory for binary executables]) -AC_DEFINE_UNQUOTED(LLVM_LIBDIR, "$LLVM_LIBDIR", +AC_DEFINE_UNQUOTED(LLVM_LIBDIR, "$LLVM_LIBDIR", [Installation directory for libraries]) -AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DATADIR", +AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DATADIR", [Installation directory for data files]) -AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DOCSDIR", +AC_DEFINE_UNQUOTED(LLVM_DOCSDIR, "$LLVM_DOCSDIR", [Installation directory for documentation]) -AC_DEFINE_UNQUOTED(LLVM_ETCDIR, "$LLVM_ETCDIR", +AC_DEFINE_UNQUOTED(LLVM_ETCDIR, "$LLVM_ETCDIR", [Installation directory for config files]) -AC_DEFINE_UNQUOTED(LLVM_INCLUDEDIR, "$LLVM_INCLUDEDIR", +AC_DEFINE_UNQUOTED(LLVM_INCLUDEDIR, "$LLVM_INCLUDEDIR", [Installation directory for include files]) -AC_DEFINE_UNQUOTED(LLVM_INFODIR, "$LLVM_INFODIR", +AC_DEFINE_UNQUOTED(LLVM_INFODIR, "$LLVM_INFODIR", [Installation directory for .info files]) -AC_DEFINE_UNQUOTED(LLVM_MANDIR, "$LLVM_MANDIR", +AC_DEFINE_UNQUOTED(LLVM_MANDIR, "$LLVM_MANDIR", [Installation directory for man pages]) -AC_DEFINE_UNQUOTED(LLVM_CONFIGTIME, "$LLVM_CONFIGTIME", +AC_DEFINE_UNQUOTED(LLVM_CONFIGTIME, "$LLVM_CONFIGTIME", [Time at which LLVM was configured]) +AC_DEFINE_UNQUOTED(LLVM_HOSTTRIPLE, "$host", + [Host triple we were built on]) + +# Determine which bindings to build. +if test "$BINDINGS_TO_BUILD" = auto ; then + BINDINGS_TO_BUILD="" + if test "x$OCAMLC" != x -a "x$OCAMLDEP" != x ; then + BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD" + fi +fi +AC_SUBST(BINDINGS_TO_BUILD,$BINDINGS_TO_BUILD) + +# This isn't really configurey, but it avoids having to repeat the list in +# other files. +AC_SUBST(ALL_BINDINGS,ocaml) + +# Do any work necessary to ensure that bindings have what they need. +binding_prereqs_failed=0 +for a_binding in $BINDINGS_TO_BUILD ; do + case "$a_binding" in + ocaml) + if test "x$OCAMLC" = x ; then + AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlc not found. Try configure OCAMLC=/path/to/ocamlc]) + binding_prereqs_failed=1 + fi + if test "x$OCAMLDEP" = x ; then + AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamldep not found. Try configure OCAMLDEP=/path/to/ocamldep]) + binding_prereqs_failed=1 + fi + if test "x$OCAMLOPT" = x ; then + AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlopt not found. Try configure OCAMLOPT=/path/to/ocamlopt]) + dnl ocamlopt is optional! + fi + if test "x$with_ocaml_libdir" != xauto ; then + AC_SUBST(OCAML_LIBDIR,$with_ocaml_libdir) + else + ocaml_stdlib="`"$OCAMLC" -where`" + if test "$LLVM_PREFIX" '<' "$ocaml_stdlib" -a "$ocaml_stdlib" '<' "$LLVM_PREFIX~" + then + # ocaml stdlib is beneath our prefix; use stdlib + AC_SUBST(OCAML_LIBDIR,$ocaml_stdlib) + else + # ocaml stdlib is outside our prefix; use libdir/ocaml + AC_SUBST(OCAML_LIBDIR,$LLVM_LIBDIR/ocaml) + fi + fi + ;; + esac +done +if test "$binding_prereqs_failed" = 1 ; then + AC_MSG_ERROR([Prequisites for bindings not satisfied. Fix them or use configure --disable-bindings.]) +fi + dnl===-----------------------------------------------------------------------=== dnl=== @@ -657,9 +983,15 @@ AC_CONFIG_HEADERS([include/llvm/ADT/iterator]) dnl Configure the makefile's configuration data AC_CONFIG_FILES([Makefile.config]) +dnl Configure the RPM spec file for LLVM +AC_CONFIG_FILES([llvm.spec]) + dnl Configure doxygen's configuration file AC_CONFIG_FILES([docs/doxygen.cfg]) +dnl Do the first stage of configuration for llvm-config.in. +AC_CONFIG_FILES([tools/llvm-config/llvm-config.in]) + dnl Do special configuration of Makefiles AC_CONFIG_COMMANDS([setup],,[llvm_src="${srcdir}"]) AC_CONFIG_MAKEFILE(Makefile) @@ -672,15 +1004,8 @@ AC_CONFIG_MAKEFILE(test/Makefile.tests) AC_CONFIG_MAKEFILE(tools/Makefile) AC_CONFIG_MAKEFILE(utils/Makefile) AC_CONFIG_MAKEFILE(projects/Makefile) +AC_CONFIG_MAKEFILE(bindings/Makefile) +AC_CONFIG_MAKEFILE(bindings/ocaml/Makefile.ocaml) dnl Finally, crank out the output AC_OUTPUT - -dnl Warn loudly if llvm-gcc was not obviously working -if test "$llvm_cv_llvmgcc_sanity" = "no" ; then - AC_MSG_WARN([***** llvm-gcc/llvm-g++ was not found, or does not appear to be ]) - AC_MSG_WARN([***** working. Please make sure you have llvmgcc and llvmg++ in]) - AC_MSG_WARN([***** your path before configuring LLVM. The runtime libraries]) - AC_MSG_WARN([***** (llvm/runtime) will not be built but you should be able to]) - AC_MSG_WARN([***** build the llvm tools.]) -fi