Regression test for initializers with members of unknown size.

[oota-llvm.git] / autoconf / configure.ac

diff --git a/autoconf/configure.ac b/autoconf/configure.ac
index 310d3dfeaa5116aaee7e4d505d4a9c8fc5419e55..ecabae9a9da37c4b88847afd403f57678585e873 100644 (file)
--- a/autoconf/configure.ac
+++ b/autoconf/configure.ac
@@ -15,13 +15,84 @@ dnl AC_OUTPUT
 dnl **************************************************************************
 dnl * Initialize
 dnl **************************************************************************
 dnl **************************************************************************
 dnl * Initialize
 dnl **************************************************************************

-AC_INIT([[[LLVM]]],[[[1.0]]],[llvmbugs@cs.uiuc.edu])
+AC_INIT([[[LLVM]]],[[[1.1]]],[llvmbugs@cs.uiuc.edu])

 
 dnl Place all of the extra autoconf files into the config subdirectory
 AC_CONFIG_AUX_DIR([autoconf])
 
 
 dnl Place all of the extra autoconf files into the config subdirectory
 AC_CONFIG_AUX_DIR([autoconf])
 

+dnl Quit if the source directory has already been configured.
+dnl NOTE: This relies upon undocumented autoconf behavior.
+if test ${srcdir} != "."
+then
+       if test -f ${srcdir}/include/Config/config.h
+       then
+               AC_MSG_ERROR([Already configured in ${srcdir}])
+       fi
+fi
+
+dnl
+dnl Configure all of the projects present in our source tree.
+dnl
+for i in `ls ${srcdir}/projects`
+do
+  if test ${i} != "CVS"
+  then
+    if test -f ${srcdir}/projects/${i}/configure
+    then
+      AC_CONFIG_SUBDIRS(projects/${i})
+    fi
+  fi
+done
+

 dnl Configure a header file
 AC_CONFIG_HEADERS(include/Config/config.h)
 dnl Configure a header file
 AC_CONFIG_HEADERS(include/Config/config.h)

+AC_CONFIG_MAKEFILE(Makefile)
+AC_CONFIG_MAKEFILE(Makefile.common)
+AC_CONFIG_MAKEFILE(lib/Makefile)
+AC_CONFIG_MAKEFILE(runtime/Makefile)
+AC_CONFIG_MAKEFILE(test/Makefile)
+AC_CONFIG_MAKEFILE(test/Makefile.tests)
+AC_CONFIG_MAKEFILE(test/QMTest/llvm.py)
+AC_CONFIG_MAKEFILE(test/QMTest/llvmdb.py)
+AC_CONFIG_MAKEFILE(test/Programs/Makefile)
+AC_CONFIG_MAKEFILE(test/Programs/Makefile.programs)
+AC_CONFIG_MAKEFILE(test/Programs/TEST.aa.Makefile)
+AC_CONFIG_MAKEFILE(test/Programs/TEST.dsgraph.report)
+AC_CONFIG_MAKEFILE(test/Programs/TEST.micro.report)
+AC_CONFIG_MAKEFILE(test/Programs/TEST.aa.report)
+AC_CONFIG_MAKEFILE(test/Programs/TEST.example.Makefile)
+AC_CONFIG_MAKEFILE(test/Programs/TEST.nightly.Makefile)
+AC_CONFIG_MAKEFILE(test/Programs/TEST.buildrepo.Makefile)
+AC_CONFIG_MAKEFILE(test/Programs/TEST.jit.Makefile)
+AC_CONFIG_MAKEFILE(test/Programs/TEST.nightly.report)
+AC_CONFIG_MAKEFILE(test/Programs/TEST.dsgraph.Makefile)
+AC_CONFIG_MAKEFILE(test/Programs/TEST.jit.report)
+AC_CONFIG_MAKEFILE(test/Programs/TEST.typesafe.Makefile)
+AC_CONFIG_MAKEFILE(test/Programs/TEST.dsgraph.gnuplot)
+AC_CONFIG_MAKEFILE(test/Programs/TEST.micro.Makefile)
+AC_CONFIG_MAKEFILE(test/Programs/External/Makefile)
+AC_CONFIG_MAKEFILE(test/Programs/External/SPEC/Makefile)
+AC_CONFIG_MAKEFILE(test/Programs/External/SPEC/Makefile.spec)
+AC_CONFIG_MAKEFILE(test/Programs/MultiSource/Makefile)
+AC_CONFIG_MAKEFILE(test/Programs/MultiSource/Makefile.multisrc)
+AC_CONFIG_MAKEFILE(test/Programs/MultiSource/Benchmarks/FreeBench/analyzer/test.in)
+AC_CONFIG_MAKEFILE(test/Programs/MultiSource/Benchmarks/FreeBench/distray/Makefile)
+AC_CONFIG_MAKEFILE(test/Programs/MultiSource/Benchmarks/FreeBench/distray/test.in)
+AC_CONFIG_MAKEFILE(test/Programs/MultiSource/Benchmarks/FreeBench/fourinarow/Makefile)
+AC_CONFIG_MAKEFILE(test/Programs/MultiSource/Benchmarks/FreeBench/fourinarow/test.in)
+AC_CONFIG_MAKEFILE(test/Programs/MultiSource/Benchmarks/FreeBench/mason/Makefile)
+AC_CONFIG_MAKEFILE(test/Programs/MultiSource/Benchmarks/FreeBench/mason/test.in)
+AC_CONFIG_MAKEFILE(test/Programs/MultiSource/Benchmarks/FreeBench/neural/Makefile)
+AC_CONFIG_MAKEFILE(test/Programs/MultiSource/Benchmarks/FreeBench/neural/test.in)
+AC_CONFIG_MAKEFILE(test/Programs/MultiSource/Benchmarks/FreeBench/pcompress2/Makefile)
+AC_CONFIG_MAKEFILE(test/Programs/MultiSource/Benchmarks/FreeBench/pcompress2/test.in)
+AC_CONFIG_MAKEFILE(test/Programs/MultiSource/Benchmarks/FreeBench/pifft/Makefile)
+AC_CONFIG_MAKEFILE(test/Programs/MultiSource/Benchmarks/FreeBench/pifft/test.in)
+AC_CONFIG_MAKEFILE(test/Programs/SingleSource/Makefile)
+AC_CONFIG_MAKEFILE(test/Programs/SingleSource/Makefile.singlesrc)
+AC_CONFIG_MAKEFILE(tools/Makefile)
+AC_CONFIG_MAKEFILE(utils/Makefile)
+AC_CONFIG_MAKEFILE(projects/Makefile)

 
 dnl **************************************************************************
 dnl * Determine which system we are building on
 
 dnl **************************************************************************
 dnl * Determine which system we are building on


@@ -34,42 +105,52 @@ dnl Check which host for which we're compiling.  This will tell us which LLVM
 dnl compiler will be used for compiling SSA into object code.
 AC_CANONICAL_TARGET
 
 dnl compiler will be used for compiling SSA into object code.
 AC_CANONICAL_TARGET
 

-dnl
-dnl Now, for some of our own magic:
+dnl Set the "OS" Makefile variable based on the system we are building on.

 dnl We will use the build machine information to set some variables.
 dnl We will use the build machine information to set some variables.

-dnl

 case $build in
 case $build in

-       *i*86*)  AC_SUBST(OS,[Linux])
-                AC_SUBST(LLVMGCCDIR,[/home/vadve/lattner/local/x86/llvm-gcc/])
+       *-*-linux*)
+             AC_SUBST(OS,[Linux])
+                        if test -d /home/vadve/lattner/local/x86/llvm-gcc
+                        then
+                          AC_SUBST(LLVMGCCDIR,[/home/vadve/lattner/local/x86/llvm-gcc/])
+                        fi
+                ;;
+
+       *-*-solaris*)
+             AC_SUBST(OS,[SunOS])
+                        if test -d /home/vadve/lattner/local/sparc/llvm-gcc
+                        then
+                  AC_SUBST(LLVMGCCDIR,[/home/vadve/lattner/local/sparc/llvm-gcc/])
+                        fi

                 ;;
 
                 ;;
 

-       *sparc*) AC_SUBST(OS,[SunOS])
-                AC_SUBST(LLVMGCCDIR,[/home/vadve/lattner/local/sparc/llvm-gcc/])
+       *-*-darwin*)
+             AC_SUBST(OS,[Darwin])

                 ;;
 
        *)       AC_SUBST(OS,[Unknown])
                 ;;
 esac
 
                 ;;
 
        *)       AC_SUBST(OS,[Unknown])
                 ;;
 esac
 

-dnl

 dnl If we are targetting a Sparc machine running Solaris, pretend that it is
 dnl V9, since that is all that we support at the moment, and autoconf will only
 dnl tell us we're a sparc.
 dnl If we are targetting a Sparc machine running Solaris, pretend that it is
 dnl V9, since that is all that we support at the moment, and autoconf will only
 dnl tell us we're a sparc.

-dnl

 case $target in
 case $target in

-       *sparc*solaris*)  AC_SUBST(target,[[sparcv9-sun-solaris2.8]])
-                         ;;
+       sparc*-*-solaris*)  AC_SUBST(target,[[sparcv9-sun-solaris2.8]])
+                           ;;

 esac
 
 esac
 

-dnl

 dnl Determine what our target architecture is and configure accordingly.
 dnl This will allow Makefiles to make a distinction between the hardware and
 dnl the OS.
 dnl Determine what our target architecture is and configure accordingly.
 dnl This will allow Makefiles to make a distinction between the hardware and
 dnl the OS.

-dnl

 case $target in
 case $target in

-       *i*86*)           AC_SUBST(ARCH,[x86])
+       i*86-*)           AC_SUBST(ARCH,[x86])
+                         ;;
+       sparc*-*)         AC_SUBST(ARCH,[Sparc])

                          ;;
                          ;;

-       *sparc*solaris*)  AC_SUBST(ARCH,[Sparc])
+       powerpc*-*)       AC_SUBST(ARCH,[PowerPC])
+                         ;;
+       *)                AC_SUBST(ARCH,[Unknown])

                          ;;
 esac
 
                          ;;
 esac
 


@@ -93,6 +174,13 @@ then
        AC_MSG_ERROR([g++ required but not found])
 fi
 
        AC_MSG_ERROR([g++ required but not found])
 fi
 

+dnl Verify that GCC is version 3.0 or higher
+gccmajor=`$CC --version | head -n 1 | awk '{print $NF;}' | cut -d. -f1`
+if test "$gccmajor" -lt "3"
+then
+       AC_MSG_ERROR([gcc 3.x required])
+fi
+

 dnl Check for GNU Make.  We use its extensions to, so don't build without it
 CHECK_GNU_MAKE
 if test -z "$_cv_gnu_make_command"
 dnl Check for GNU Make.  We use its extensions to, so don't build without it
 CHECK_GNU_MAKE
 if test -z "$_cv_gnu_make_command"


@@ -108,16 +196,87 @@ dnl Check for libtool
 AC_PROG_LIBTOOL
 
 dnl Check for our special programs
 AC_PROG_LIBTOOL
 
 dnl Check for our special programs

-AC_PATH_PROG(AR,[ar])
-AC_PATH_PROG(SED,[sed])
-AC_PATH_PROG(RM,[rm])
-AC_PATH_PROG(ECHO,[echo])
-AC_PATH_PROG(MKDIR,[mkdir])
-AC_PATH_PROG(DATE,[date])
-AC_PATH_PROG(MV,[mv])
-AC_PATH_PROG(DOT,[dot])
-AC_PATH_PROG(ETAGS,[etags])
-AC_PATH_PROG(PURIFY,[purify])
+AC_PATH_PROG(RPWD,[pwd],[false])
+if test ${RPWD} = "false"
+then
+       AC_MSG_ERROR([pwd required but not found])
+fi
+
+AC_PATH_PROG(AR,[ar],[false])
+if test ${AR} = "false"
+then
+       AC_MSG_ERROR([ar required but not found])
+fi
+
+AC_PATH_PROG(SED,[sed],[false])
+if test ${SED} = "false"
+then
+       AC_MSG_ERROR([sed required but not found])
+fi
+
+AC_PATH_PROG(RM,[rm],[false])
+if test ${RM} = "false"
+then
+       AC_MSG_ERROR([rm required but not found])
+fi
+
+AC_PATH_PROG(ECHO,[echo],[false])
+if test ${ECHO} = "false"
+then
+       AC_MSG_ERROR([echo required but not found])
+fi
+
+AC_PATH_PROG(MKDIR,[mkdir],[false])
+if test ${MKDIR} = "false"
+then
+       AC_MSG_ERROR([mkdir required but not found])
+fi
+
+AC_PATH_PROG(DATE,[date],[false])
+if test ${DATE} = "false"
+then
+       AC_MSG_ERROR([date required but not found])
+fi
+
+AC_PATH_PROG(MV,[mv],[false])
+if test ${MV} = "false"
+then
+       AC_MSG_ERROR([mv required but not found])
+fi
+
+AC_PATH_PROG(DOT,[dot],[false])
+
+AC_PATH_PROG(ETAGS,[etags],[false])
+
+AC_PATH_PROG(PYTHON,[python],[false])
+if test ${PYTHON} = "false"
+then
+       AC_MSG_WARN([python required but not found])
+fi
+
+AC_PATH_PROG(QMTEST,[qmtest],[false])
+if test ${QMTEST} = "false"
+then
+       AC_MSG_WARN([qmtest required but not found])
+fi
+
+dnl Verify that the version of python available is high enough for qmtest
+pyversion=`$PYTHON -V 2>&1 | cut -d\  -f2`
+pymajor=`echo $pyversion | cut -d. -f1`
+pyminor=`echo $pyversion | cut -d. -f2`
+
+if test "$pymajor" -ge "2"
+then
+       if test "$pymajor" -eq "2"
+       then
+               if test "$pyminor" -lt "2"
+               then
+                       AC_MSG_WARN([Python 2.2 or greater required for qmtest])
+               fi
+       fi
+else
+       AC_MSG_WARN([Python 2.2 or greater required for qmtest])
+fi

 
 dnl Verify that the source directory is valid
 AC_CONFIG_SRCDIR(["Makefile.config.in"])
 
 dnl Verify that the source directory is valid
 AC_CONFIG_SRCDIR(["Makefile.config.in"])


@@ -129,11 +288,15 @@ dnl **************************************************************************
 dnl libelf is for sparc only; we can ignore it if we don't have it
 AC_CHECK_LIB(elf, elf_begin)
 
 dnl libelf is for sparc only; we can ignore it if we don't have it
 AC_CHECK_LIB(elf, elf_begin)
 

-dnl dlopen() is required.  If we don't find it, quit.
-AC_SEARCH_LIBS(dlopen,dl,,AC_MSG_ERROR([dlopen() required but not found]))
+dnl dlopen() is required for plugin support.
+AC_SEARCH_LIBS(dlopen,dl,AC_DEFINE([HAVE_DLOPEN],[1],[Define if dlopen() is available on this platform.]),AC_MSG_WARN([dlopen() not found - disabling plugin support]))

 
 dnl mallinfo is optional; the code can compile (minus features) without it
 
 dnl mallinfo is optional; the code can compile (minus features) without it

-AC_SEARCH_LIBS(mallinfo,malloc,AC_DEFINE([HAVE_MALLINFO],[1]))
+AC_SEARCH_LIBS(mallinfo,malloc,AC_DEFINE([HAVE_MALLINFO],[1],[Define if mallinfo() is available on this platform.]))
+
+dnl pthread locking functions are optional - but llvm will not be thread-safe
+dnl without locks.
+AC_SEARCH_LIBS(pthread_mutex_lock,pthread,AC_DEFINE(HAVE_PTHREAD_MUTEX_LOCK,1,[Define if PThread mutexes (e.g., pthread_mutex_lock) are available in the system's thread library.]))

 
 dnl
 dnl The math libraries are used by the test code, but not by the actual LLVM
 
 dnl
 dnl The math libraries are used by the test code, but not by the actual LLVM


@@ -158,7 +321,7 @@ dnl Check for ANSI C/POSIX header files
 AC_CHECK_HEADERS(assert.h fcntl.h limits.h sys/time.h unistd.h errno.h signal.h math.h)
 
 dnl Check for system specific header files
 AC_CHECK_HEADERS(assert.h fcntl.h limits.h sys/time.h unistd.h errno.h signal.h math.h)
 
 dnl Check for system specific header files

-AC_CHECK_HEADERS(malloc.h strings.h sys/mman.h sys/resource.h)
+AC_CHECK_HEADERS(malloc.h sys/mman.h sys/resource.h)

 
 dnl Check for header files associated with dlopen and friends
 AC_CHECK_HEADERS(dlfcn.h link.h)
 
 dnl Check for header files associated with dlopen and friends
 AC_CHECK_HEADERS(dlfcn.h link.h)


@@ -172,7 +335,7 @@ AC_C_CONST
 AC_C_INLINE
 
 dnl Check for machine endian-ness
 AC_C_INLINE
 
 dnl Check for machine endian-ness

-AC_C_BIGENDIAN(AC_DEFINE([ENDIAN_BIG]),AC_DEFINE(ENDIAN_LITTLE))
+AC_C_BIGENDIAN(AC_DEFINE([ENDIAN_BIG],[],[Define if the machine is Big-Endian]),AC_DEFINE([ENDIAN_LITTLE],[],[Define if the machine is Little-Endian]))

 
 dnl Check for types
 AC_TYPE_PID_T
 
 dnl Check for types
 AC_TYPE_PID_T


@@ -182,9 +345,12 @@ AC_CHECK_TYPES([uint64_t],,AC_MSG_ERROR([Type uint64_t required but not found]))
 AC_HEADER_TIME
 AC_STRUCT_TM
 
 AC_HEADER_TIME
 AC_STRUCT_TM
 

+dnl Check for various C features
+AC_C_PRINTF_A
+

 dnl Check for C++ extensions
 dnl Check for C++ extensions

-AC_CXX_HAVE_EXT_HASH_MAP
-AC_CXX_HAVE_EXT_HASH_SET
+AC_CXX_HAVE_HASH_MAP
+AC_CXX_HAVE_HASH_SET

 AC_CXX_HAVE_EXT_SLIST
 AC_CXX_HAVE_STD_ITERATOR
 AC_CXX_HAVE_BI_ITERATOR
 AC_CXX_HAVE_EXT_SLIST
 AC_CXX_HAVE_STD_ITERATOR
 AC_CXX_HAVE_BI_ITERATOR


@@ -204,7 +370,7 @@ then
 fi
 AC_HEADER_MMAP_ANONYMOUS
 AC_TYPE_SIGNAL
 fi
 AC_HEADER_MMAP_ANONYMOUS
 AC_TYPE_SIGNAL

-AC_CHECK_FUNCS(getcwd gettimeofday strcspn strdup strerror strspn strstr strtod strtol)
+AC_CHECK_FUNCS(getcwd gettimeofday strcspn strdup strerror strspn strstr strtod strtol strtoq strtoll)

 
 dnl
 dnl Need to check mmap for MAP_PRIVATE, MAP_ANONYMOUS, MAP_ANON, MAP_FIXED
 
 dnl
 dnl Need to check mmap for MAP_PRIVATE, MAP_ANONYMOUS, MAP_ANON, MAP_FIXED


@@ -221,6 +387,9 @@ dnl these checks should go away.
 AC_CHECK_FUNC(mmap,,AC_MSG_ERROR([Function mmap() required but not found]))
 AC_CHECK_FUNC(mprotect,,AC_MSG_ERROR([Function mprotect() required but not found]))
 
 AC_CHECK_FUNC(mmap,,AC_MSG_ERROR([Function mmap() required but not found]))
 AC_CHECK_FUNC(mprotect,,AC_MSG_ERROR([Function mprotect() required but not found]))
 

+dnl Determine if the linker supports the -R option.
+AC_LINK_USE_R()
+

 dnl **************************************************************************
 dnl * Enable various compile-time options
 dnl **************************************************************************
 dnl **************************************************************************
 dnl * Enable various compile-time options
 dnl **************************************************************************


@@ -244,11 +413,24 @@ else
 fi
 
 dnl Spec Benchmarks
 fi
 
 dnl Spec Benchmarks

-AC_ARG_ENABLE(spec,AC_HELP_STRING([--enable-spec],[Compile SPEC benchmarks (default is NO)]),,enableval=no)
+AC_ARG_ENABLE(spec2000,AC_HELP_STRING([--enable-spec2000],[Compile SPEC 2000 benchmarks (default is NO)]),,enableval=no)

 if test ${enableval} = "no"
 then
 if test ${enableval} = "no"
 then

-       AC_SUBST(USE_SPEC,[[]])
+       if test -d /home/vadve/shared/benchmarks/speccpu2000/benchspec
+       then
+               AC_SUBST(SPEC_ROOT,[/home/vadve/shared/benchmarks/speccpu2000/benchspec])
+               AC_SUBST(USE_SPEC,[[USE_SPEC=1]])
+       else
+               AC_SUBST(USE_SPEC,[[]])
+               AC_SUBST(SPEC_ROOT,[])
+       fi

 else
 else

+       if test ${enableval} = ""
+       then
+               AC_SUBST(SPEC_ROOT,[/home/vadve/shared/benchmarks/speccpu2000/benchspec])
+       else
+               AC_SUBST(SPEC_ROOT,[${enableval}])
+       fi

        AC_SUBST(USE_SPEC,[[USE_SPEC=1]])
 fi
 
        AC_SUBST(USE_SPEC,[[USE_SPEC=1]])
 fi
 


@@ -295,12 +477,43 @@ dnl **************************************************************************
 dnl * Set the location of various third-party software packages
 dnl **************************************************************************
 
 dnl * Set the location of various third-party software packages
 dnl **************************************************************************
 

-dnl Location of SPEC benchmarks
-AC_ARG_WITH(spec,AC_HELP_STRING([--with-spec],[Location of SPEC benchmarks]),AC_SUBST(SPEC_ROOT,[$withval]),AC_SUBST(SPEC_ROOT,[/home/vadve/shared/benchmarks/speccpu2000/benchspec]))
-

 dnl Location of the LLVM C front end
 AC_ARG_WITH(llvmgccdir,AC_HELP_STRING([--with-llvmgccdir],[Location of LLVM GCC front-end]),AC_SUBST(LLVMGCCDIR,[$withval]))
 
 dnl Location of the LLVM C front end
 AC_ARG_WITH(llvmgccdir,AC_HELP_STRING([--with-llvmgccdir],[Location of LLVM GCC front-end]),AC_SUBST(LLVMGCCDIR,[$withval]))
 

+AC_MSG_CHECKING([for llvm-gcc])
+LLVM_GCC_CHECK=no
+if test -d "$LLVMGCCDIR"
+then
+       if test -x "$LLVMGCCDIR/bin/gcc"
+       then
+               LLVM_GCC_CHECK="$LLVMGCCDIR/bin/gcc"
+       fi
+fi
+llvmgccwarn=no
+AC_MSG_RESULT($LLVM_GCC_CHECK)
+if test "$LLVM_GCC_CHECK" = "no"
+then
+    llvmgccwarn=yes
+fi
+
+AC_MSG_CHECKING([whether llvm-gcc is sane])
+LLVM_GCC_SANE=no
+if test -x "$LLVM_GCC_CHECK"
+then
+       cp /dev/null conftest.c
+    "$LLVM_GCC_CHECK" -S -o - conftest.c | grep implementation > /dev/null 2>&1
+       if test $? -eq 0
+       then
+               LLVM_GCC_SANE=yes
+       fi
+       rm conftest.c
+fi
+AC_MSG_RESULT($LLVM_GCC_SANE)
+if test "$LLVM_GCC_SANE" = "no"
+then
+       llvmgccwarn=yes
+fi
+

 dnl Location of the bytecode repository
 AC_ARG_WITH(bcrepos,AC_HELP_STRING([--with-bcrepos],[Location of Bytecode Repository]),AC_SUBST(BCR,[$withval]),AC_SUBST(BCR,[/home/vadve/lattner/LLVMPrograms]))
 
 dnl Location of the bytecode repository
 AC_ARG_WITH(bcrepos,AC_HELP_STRING([--with-bcrepos],[Location of Bytecode Repository]),AC_SUBST(BCR,[$withval]),AC_SUBST(BCR,[/home/vadve/lattner/LLVMPrograms]))
 


@@ -310,22 +523,21 @@ AC_ARG_WITH(papi,AC_HELP_STRING([--with-papi],[Location of PAPI]),AC_SUBST(PAPID
 dnl Location of the purify program
 AC_ARG_WITH(purify,AC_HELP_STRING([--with-purify],[Location of purify program]),AC_SUBST(PURIFY,[$withval]))
 
 dnl Location of the purify program
 AC_ARG_WITH(purify,AC_HELP_STRING([--with-purify],[Location of purify program]),AC_SUBST(PURIFY,[$withval]))
 

-dnl Location for placing object files and built programs, libraries, etc
-if test ${USER}
-then
-       if test -d /localhome/${USER}
-       then
-               AC_SUBST(OBJROOT,[/localhome/${USER}])
-       else
-               AC_SUBST(OBJROOT,[.])
-       fi
-else
-       AC_SUBST(OBJROOT,[.])
-fi
-
-AC_ARG_WITH(objroot,AC_HELP_STRING([--with-objroot],[Location where object files should be placed (default is .)]),AC_SUBST(OBJROOT,[$withval]))
+dnl **************************************************************************
+dnl * Configure other software packages (via AC_CONFIG_SUBDIRS)
+dnl **************************************************************************

 
 dnl **************************************************************************
 dnl * Create the output files
 dnl **************************************************************************
 AC_OUTPUT(Makefile.config)
 
 dnl **************************************************************************
 dnl * Create the output files
 dnl **************************************************************************
 AC_OUTPUT(Makefile.config)

+
+if test $llvmgccwarn = yes
+then
+       AC_MSG_WARN([***** llvm C/C++ front end was not found, or does not])
+       AC_MSG_WARN([***** appear to be working.])
+       AC_MSG_WARN([***** ])
+       AC_MSG_WARN([***** Please check configure's --with-llvmgccdir option.])
+       AC_MSG_WARN([***** Runtime libraries (in llvm/runtime) will not be built,])
+       AC_MSG_WARN([***** but you should be able to build the llvm tools.])
+fi