autoconf/configure.ac

   1 dnl Initialize autoconf
   2 AC_INIT([[[LLVM]]],[[[1.1]]],[llvmbugs@cs.uiuc.edu])
   3
   4 dnl Place all of the extra autoconf files into the config subdirectory
   5 AC_CONFIG_AUX_DIR([autoconf])
   6
   7 dnl Quit if the source directory has already been configured.
   8 dnl NOTE: This relies upon undocumented autoconf behavior.
   9 if test ${srcdir} != "."
  10 then
  11         if test -f ${srcdir}/include/Config/config.h
  12         then
  13                 AC_MSG_ERROR([Already configured in ${srcdir}])
  14         fi
  15 fi
  16
  17 dnl Configure all of the projects present in our source tree.
  18 for i in `ls ${srcdir}/projects`
  19 do
  20   if test ${i} != "CVS"
  21   then
  22     if test -f ${srcdir}/projects/${i}/configure
  23     then
  24       AC_CONFIG_SUBDIRS(projects/${i})
  25     fi
  26   fi
  27 done
  28
  29 dnl Configure a header file
  30 AC_CONFIG_HEADERS(include/Config/config.h)
  31 AC_CONFIG_MAKEFILE(Makefile)
  32 AC_CONFIG_MAKEFILE(Makefile.common)
  33 AC_CONFIG_MAKEFILE(lib/Makefile)
  34 AC_CONFIG_MAKEFILE(runtime/Makefile)
  35 AC_CONFIG_MAKEFILE(test/Makefile)
  36 AC_CONFIG_MAKEFILE(test/Makefile.tests)
  37 AC_CONFIG_MAKEFILE(test/QMTest/llvm.py)
  38 AC_CONFIG_MAKEFILE(test/QMTest/llvmdb.py)
  39 AC_CONFIG_MAKEFILE(test/Programs/Makefile)
  40 AC_CONFIG_MAKEFILE(test/Programs/Makefile.programs)
  41 AC_CONFIG_MAKEFILE(test/Programs/TEST.aa.Makefile)
  42 AC_CONFIG_MAKEFILE(test/Programs/TEST.dsgraph.report)
  43 AC_CONFIG_MAKEFILE(test/Programs/TEST.aa.report)
  44 AC_CONFIG_MAKEFILE(test/Programs/TEST.example.Makefile)
  45 AC_CONFIG_MAKEFILE(test/Programs/TEST.nightly.Makefile)
  46 AC_CONFIG_MAKEFILE(test/Programs/TEST.buildrepo.Makefile)
  47 AC_CONFIG_MAKEFILE(test/Programs/TEST.jit.Makefile)
  48 AC_CONFIG_MAKEFILE(test/Programs/TEST.nightly.report)
  49 AC_CONFIG_MAKEFILE(test/Programs/TEST.dsgraph.Makefile)
  50 AC_CONFIG_MAKEFILE(test/Programs/TEST.jit.report)
  51 AC_CONFIG_MAKEFILE(test/Programs/TEST.typesafe.Makefile)
  52 AC_CONFIG_MAKEFILE(test/Programs/TEST.dsgraph.gnuplot)
  53 AC_CONFIG_MAKEFILE(test/Programs/TEST.vtl.Makefile)
  54 AC_CONFIG_MAKEFILE(test/Programs/External/Makefile)
  55 AC_CONFIG_MAKEFILE(test/Programs/External/SPEC/Makefile)
  56 AC_CONFIG_MAKEFILE(test/Programs/External/SPEC/Makefile.spec)
  57 AC_CONFIG_MAKEFILE(test/Programs/External/SPEC/Makefile.spec2000)
  58 AC_CONFIG_MAKEFILE(test/Programs/External/SPEC/Makefile.spec95)
  59 AC_CONFIG_MAKEFILE(test/Programs/MultiSource/Makefile)
  60 AC_CONFIG_MAKEFILE(test/Programs/MultiSource/Makefile.multisrc)
  61 AC_CONFIG_MAKEFILE(test/Programs/MultiSource/Benchmarks/FreeBench/analyzer/test.in)
  62 AC_CONFIG_MAKEFILE(test/Programs/MultiSource/Benchmarks/FreeBench/distray/Makefile)
  63 AC_CONFIG_MAKEFILE(test/Programs/MultiSource/Benchmarks/FreeBench/distray/test.in)
  64 AC_CONFIG_MAKEFILE(test/Programs/MultiSource/Benchmarks/FreeBench/fourinarow/Makefile)
  65 AC_CONFIG_MAKEFILE(test/Programs/MultiSource/Benchmarks/FreeBench/fourinarow/test.in)
  66 AC_CONFIG_MAKEFILE(test/Programs/MultiSource/Benchmarks/FreeBench/mason/Makefile)
  67 AC_CONFIG_MAKEFILE(test/Programs/MultiSource/Benchmarks/FreeBench/mason/test.in)
  68 AC_CONFIG_MAKEFILE(test/Programs/MultiSource/Benchmarks/FreeBench/neural/Makefile)
  69 AC_CONFIG_MAKEFILE(test/Programs/MultiSource/Benchmarks/FreeBench/neural/test.in)
  70 AC_CONFIG_MAKEFILE(test/Programs/MultiSource/Benchmarks/FreeBench/pcompress2/Makefile)
  71 AC_CONFIG_MAKEFILE(test/Programs/MultiSource/Benchmarks/FreeBench/pcompress2/test.in)
  72 AC_CONFIG_MAKEFILE(test/Programs/MultiSource/Benchmarks/FreeBench/pifft/Makefile)
  73 AC_CONFIG_MAKEFILE(test/Programs/MultiSource/Benchmarks/FreeBench/pifft/test.in)
  74 AC_CONFIG_MAKEFILE(test/Programs/SingleSource/Makefile)
  75 AC_CONFIG_MAKEFILE(test/Programs/SingleSource/Makefile.singlesrc)
  76 AC_CONFIG_MAKEFILE(test/Programs/SingleSource/UnitTests/SetjmpLongjmp/Makefile)
  77 AC_CONFIG_MAKEFILE(tools/Makefile)
  78 AC_CONFIG_MAKEFILE(utils/Makefile)
  79 AC_CONFIG_MAKEFILE(projects/Makefile)
  80
  81 dnl Find the install program (needs to be done before canonical stuff)
  82 AC_PROG_INSTALL
  83
  84 dnl Check which host for which we're compiling.  This will tell us which LLVM
  85 dnl compiler will be used for compiling SSA into object code.
  86 AC_CANONICAL_TARGET
  87
  88 dnl Set the "OS" Makefile variable based on the system we are building on.
  89 dnl We will use the build machine information to set some variables.
  90 case $build in
  91         *-*-linux*)
  92              AC_SUBST(OS,[Linux])
  93                          if test -d /home/vadve/lattner/local/x86/llvm-gcc
  94                          then
  95                            AC_SUBST(LLVMGCCDIR,[/home/vadve/lattner/local/x86/llvm-gcc/])
  96                          fi
  97                  ;;
  98
  99         *-*-solaris*)
 100              AC_SUBST(OS,[SunOS])
 101                          if test -d /home/vadve/lattner/local/sparc/llvm-gcc
 102                          then
 103                    AC_SUBST(LLVMGCCDIR,[/home/vadve/lattner/local/sparc/llvm-gcc/])
 104                          fi
 105                  ;;
 106
 107         *-*-darwin*)
 108              AC_SUBST(OS,[Darwin])
 109                  ;;
 110
 111         *)       AC_SUBST(OS,[Unknown])
 112                  ;;
 113 esac
 114
 115 dnl If we are targetting a Sparc machine running Solaris, pretend that it is
 116 dnl V9, since that is all that we support at the moment, and autoconf will only
 117 dnl tell us we're a sparc.
 118 case $target in
 119         sparc*-*-solaris*)  AC_SUBST(target,[[sparcv9-sun-solaris2.8]])
 120                             ;;
 121 esac
 122
 123 dnl Determine what our target architecture is and configure accordingly.
 124 dnl This will allow Makefiles to make a distinction between the hardware and
 125 dnl the OS.
 126 case $target in
 127         i*86-*)           AC_SUBST(ARCH,[x86])
 128                           ;;
 129         sparc*-*)         AC_SUBST(ARCH,[Sparc])
 130                           ;;
 131         powerpc*-*)       AC_SUBST(ARCH,[PowerPC])
 132                           ;;
 133         *)                AC_SUBST(ARCH,[Unknown])
 134                           ;;
 135 esac
 136
 137 dnl Check for compilation tools
 138 AC_PROG_CXX
 139 AC_PROG_CC(gcc)
 140 AC_PROG_CPP
 141
 142 dnl Ensure that compilation tools are GCC; we use GCC specific extensions
 143 if test "$GCC" != "yes"
 144 then
 145         AC_MSG_ERROR([gcc required but not found])
 146 fi
 147 if test "$GXX" != "yes"
 148 then
 149         AC_MSG_ERROR([g++ required but not found])
 150 fi
 151
 152 dnl Verify that GCC is version 3.0 or higher
 153 gccmajor=`$CC --version | head -n 1 | awk '{print $NF;}' | cut -d. -f1`
 154 if test "$gccmajor" -lt "3"
 155 then
 156         AC_MSG_ERROR([gcc 3.x required, but you have a lower version])
 157 fi
 158
 159 dnl Check for GNU Make.  We use its extensions too, so don't build without it
 160 CHECK_GNU_MAKE
 161 if test -z "$_cv_gnu_make_command"
 162 then
 163         AC_MSG_ERROR([GNU Make required but not found])
 164 fi
 165
 166 dnl Checks for other tools
 167 AC_PROG_FLEX
 168 AC_PROG_BISON
 169 AC_PROG_LIBTOOL
 170
 171 dnl Checks for tools we can get away with not having:
 172 AC_PATH_PROG(DOT,[dot],[true dot])
 173 AC_PATH_PROG(ETAGS,[etags],[true etags])
 174 dnl Check if we know how to tell etags we are using C++:
 175 etags_version=`$ETAGS --version 2>&1`
 176 case "$etags_version" in
 177         *[Ee]xuberant*) ETAGSFLAGS="--language-force=c++" ;;
 178         *GNU\ Emacs*) ETAGSFLAGS="-l c++" ;;
 179         *) ETAGSFLAGS="" ;;
 180 esac
 181 AC_SUBST(ETAGSFLAGS,$ETAGSFLAGS)
 182 AC_PATH_PROG(PYTHON,[python],[true python])
 183 if test "$PYTHON" = "false"
 184 then
 185         AC_MSG_WARN([Python is required for the test suite, but it was not found])
 186 fi
 187 AC_PATH_PROG(QMTEST,[qmtest],[true qmtest])
 188 if test "$QMTEST" = "false"
 189 then
 190         AC_MSG_WARN([QMTest is required for the test suite, but it was not found])
 191 fi
 192
 193 dnl Verify that the version of python available is high enough for qmtest
 194 pyversion=`$PYTHON -V 2>&1 | cut -d\  -f2`
 195 pymajor=`echo $pyversion | cut -d. -f1`
 196 pyminor=`echo $pyversion | cut -d. -f2`
 197
 198 if test "$pymajor" -ge "2"
 199 then
 200         if test "$pymajor" -eq "2"
 201         then
 202                 if test "$pyminor" -lt "2"
 203                 then
 204                         AC_MSG_WARN([QMTest requires Python 2.2 or later])
 205                 fi
 206         fi
 207 else
 208         AC_MSG_WARN([QMTest requires Python 2.2 or later])
 209 fi
 210
 211 dnl Verify that the source directory is valid
 212 AC_CONFIG_SRCDIR(["Makefile.config.in"])
 213
 214 dnl Checks for libraries:
 215 dnl libelf is for sparc only; we can ignore it if we don't have it
 216 AC_CHECK_LIB(elf, elf_begin)
 217
 218 dnl dlopen() is required for plugin support.
 219 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]))
 220
 221 dnl mallinfo is optional; the code can compile (minus features) without it
 222 AC_SEARCH_LIBS(mallinfo,malloc,AC_DEFINE([HAVE_MALLINFO],[1],[Define if mallinfo() is available on this platform.]))
 223
 224 dnl pthread locking functions are optional - but llvm will not be thread-safe
 225 dnl without locks.
 226 AC_SEARCH_LIBS(pthread_mutex_lock,pthread,HAVE_PTHREAD_MUTEX_LOCK=1,HAVE_PTHREAD_MUTEX_LOCK=0)
 227 AC_SUBST(HAVE_PTHREAD_MUTEX_LOCK)
 228
 229 dnl Checks for header files.
 230 dnl We don't check for ancient stuff or things that are guaranteed to be there
 231 dnl by the C++ standard. We always use the <cfoo> versions of <foo.h> C headers.
 232 AC_HEADER_STDC
 233 AC_HEADER_SYS_WAIT
 234
 235 dnl Checks for POSIX and other various system-specific header files
 236 AC_CHECK_HEADERS(fcntl.h limits.h sys/time.h unistd.h malloc.h sys/mman.h sys/resource.h dlfcn.h link.h execinfo.h)
 237
 238 dnl Check for things that need to be included in public headers, and so
 239 dnl for which we may not have access to a HAVE_* preprocessor #define.
 240 dnl (primarily used in DataTypes.h)
 241 AC_CHECK_HEADER([sys/types.h],
 242                 [INCLUDE_SYS_TYPES_H='#include <sys/types.h>'],
 243                 [INCLUDE_SYS_TYPES_H=''])
 244 AC_SUBST(INCLUDE_SYS_TYPES_H)
 245 AC_CHECK_HEADER([inttypes.h],
 246                 [INCLUDE_INTTYPES_H='#include <inttypes.h>'],
 247                 [INCLUDE_INTTYPES_H=''])
 248 AC_SUBST(INCLUDE_INTTYPES_H)
 249
 250 dnl Check for types
 251 AC_TYPE_PID_T
 252 AC_TYPE_SIZE_T
 253 AC_CHECK_TYPES([int64_t],,AC_MSG_ERROR([Type int64_t required but not found]))
 254 AC_CHECK_TYPES([uint64_t],,AC_MSG_ERROR([Type uint64_t required but not found]))
 255 AC_HEADER_TIME
 256 AC_STRUCT_TM
 257
 258 dnl Check for various C features
 259 AC_C_PRINTF_A
 260
 261 dnl Check for the endianness of the target
 262 AC_C_BIGENDIAN(AC_SUBST([ENDIAN],[big]),AC_SUBST([ENDIAN],[little]))
 263
 264 dnl Check for C++ extensions
 265 AC_CXX_HAVE_HASH_MAP
 266 AC_CXX_HAVE_HASH_SET
 267 AC_CXX_HAVE_STD_ITERATOR
 268 AC_CXX_HAVE_BI_ITERATOR
 269 AC_CXX_HAVE_FWD_ITERATOR
 270
 271 dnl Checks for library functions.
 272 AC_FUNC_ALLOCA
 273 AC_FUNC_MMAP
 274 if test "$ac_cv_func_mmap_fixed_mapped" = "no"
 275 then
 276         AC_MSG_ERROR([mmap() required but not found])
 277 fi
 278 AC_FUNC_MMAP_FILE
 279 if test "$ac_cv_func_mmap_file" = "no"
 280 then
 281         AC_MSG_ERROR([mmap() of files required but not found])
 282 fi
 283 AC_HEADER_MMAP_ANONYMOUS
 284 AC_TYPE_SIGNAL
 285 AC_CHECK_FUNCS(getcwd gettimeofday strdup strtoq strtoll backtrace isatty)
 286 AC_CHECK_FUNC(mprotect,,AC_MSG_ERROR([Function mprotect() required but not found]))
 287
 288 dnl Determine if the linker supports the -R option.
 289 AC_LINK_USE_R
 290
 291 dnl --enable/--with command-line options:
 292 dnl Check whether they want to do an optimized build:
 293 AC_ARG_ENABLE(optimized,AC_HELP_STRING([--enable-optimized],[Compile with optimizations enabled (default is NO)]),,enableval=no)
 294 if test ${enableval} = "no"
 295 then
 296         AC_SUBST(ENABLE_OPTIMIZED,[[]])
 297 else
 298         AC_SUBST(ENABLE_OPTIMIZED,[[ENABLE_OPTIMIZED=1]])
 299 fi
 300
 301 dnl Spec 2000 Benchmarks
 302 AC_ARG_ENABLE(spec2000,AC_HELP_STRING([--enable-spec2000],[Compile SPEC 2000 benchmarks (default is NO)]),,enableval=no)
 303 if test ${enableval} = "no"
 304 then
 305         if test -d /home/vadve/shared/benchmarks/speccpu2000/benchspec
 306         then
 307                 AC_SUBST(SPEC2000_ROOT,[/home/vadve/shared/benchmarks/speccpu2000/benchspec])
 308                 AC_SUBST(USE_SPEC2000,[[USE_SPEC2000=1]])
 309         else
 310                 AC_SUBST(USE_SPEC2000,[[]])
 311                 AC_SUBST(SPEC2000_ROOT,[])
 312         fi
 313 else
 314         if test ${enableval} = ""
 315         then
 316                 AC_SUBST(SPEC2000_ROOT,[/home/vadve/shared/benchmarks/speccpu2000/benchspec])
 317         else
 318                 AC_SUBST(SPEC2000_ROOT,[${enableval}])
 319         fi
 320         AC_SUBST(USE_SPEC2000,[[USE_SPEC2000=1]])
 321 fi
 322
 323 dnl Spec 95 Benchmarks
 324 AC_ARG_ENABLE(spec95,AC_HELP_STRING([--enable-spec95],[Compile SPEC 95 benchmarks (default is NO)]),,enableval=no)
 325 if test ${enableval} = "no"
 326 then
 327         if test -d /home/vadve/shared/benchmarks/spec95/benchspec
 328         then
 329                 AC_SUBST(SPEC95_ROOT,[/home/vadve/shared/benchmarks/spec95/benchspec])
 330                 AC_SUBST(USE_SPEC95,[[USE_SPEC95=1]])
 331         else
 332                 AC_SUBST(USE_SPEC95,[[]])
 333                 AC_SUBST(SPEC95_ROOT,[])
 334         fi
 335 else
 336         if test ${enableval} = ""
 337         then
 338                 AC_SUBST(SPEC95_ROOT,[/home/vadve/shared/benchmarks/spec95/benchspec])
 339         else
 340                 AC_SUBST(SPEC95_ROOT,[${enableval}])
 341         fi
 342         AC_SUBST(USE_SPEC95,[[USE_SPEC95=1]])
 343 fi
 344
 345 dnl We can use POV-Ray as an external benchmark, if they have the sources.
 346 AC_ARG_ENABLE(povray,
 347  AC_HELP_STRING([--enable-povray=ARG],
 348                 [Use POV-Ray as a benchmark (srcs in DIR)]),
 349  povray=$enableval,
 350  povray=auto)
 351 AC_MSG_CHECKING([for POV-Ray benchmark sources])
 352 case "$povray" in
 353 yes)
 354     defaultdir=/home/vadve/shared/benchmarks/povray31
 355         if test -d $defaultdir
 356         then
 357                 AC_SUBST(POVRAY_ROOT,[$defaultdir])
 358                 AC_SUBST(USE_POVRAY,[[USE_POVRAY=1]])
 359         povray="yes, found in $defaultdir"
 360     else
 361         povray=no
 362     fi
 363     ;;
 364 auto|no)
 365     AC_SUBST(POVRAY_ROOT,[])
 366     AC_SUBST(USE_POVRAY,[[]])
 367     povray=no
 368     ;;
 369 *)  if test -d "$povray"
 370     then
 371         AC_SUBST(POVRAY_ROOT,"$povray")
 372         AC_SUBST(USE_POVRAY,[[USE_POVRAY=1]])
 373         povray="yes, in $povray"
 374     else
 375         AC_SUBST(POVRAY_ROOT,[])
 376         AC_SUBST(USE_POVRAY,[[]])
 377         povray="no, not found in $povray"
 378     fi
 379     ;;
 380 esac
 381 AC_MSG_RESULT($povray)
 382
 383 dnl Precompiled Bytecode Option
 384 AC_ARG_ENABLE(precompiled_bytecode,AC_HELP_STRING([--enable-precompiled_bytecode],[Use pre-compiled bytecode (default is NO)]),,enableval=no)
 385 if test ${enableval} = "no"
 386 then
 387         AC_SUBST(UPB,[[]])
 388 else
 389         AC_SUBST(UPB,[[USE_PRECOMPILED_BYTECODE=1]])
 390 fi
 391
 392 dnl LLC Diff Option
 393 AC_ARG_ENABLE(llc_diffs,AC_HELP_STRING([--enable-llc_diffs],[Enable LLC Diffs when testing (default is YES)]),,enableval=yes)
 394 if test ${enableval} = "no"
 395 then
 396         AC_SUBST(DISABLE_LLC_DIFFS,[DISABLE_LLC_DIFFS:=1])
 397 else
 398         AC_SUBST(DISABLE_LLC_DIFFS,[[]])
 399 fi
 400
 401 dnl JIT Option
 402 AC_ARG_ENABLE(jit,AC_HELP_STRING([--enable-jit],[Enable Just In Time Compiling (default is YES)]),,enableval=default)
 403 if test ${enableval} = "no"
 404 then
 405         AC_SUBST(JIT,[[]])
 406 else
 407         case $target in
 408                 *i*86*)
 409                         AC_SUBST(JIT,[[TARGET_HAS_JIT=1]])
 410                         ;;
 411                 *sparc*)
 412                         AC_SUBST(JIT,[[TARGET_HAS_JIT=1]])
 413                         ;;
 414                 *)
 415                         AC_SUBST(JIT,[[]])
 416                         ;;
 417         esac
 418 fi
 419
 420 dnl Find the LLVM GCC-based C/C++ front end
 421 AC_ARG_WITH(llvmgccdir,AC_HELP_STRING([--with-llvmgccdir],[Location of LLVM GCC front-end]),AC_SUBST(LLVMGCCDIR,[$withval]))
 422 AC_MSG_CHECKING([for llvm-gcc])
 423 LLVM_GCC_CHECK=no
 424 if test -d "$LLVMGCCDIR"
 425 then
 426         if test -x "$LLVMGCCDIR/bin/gcc"
 427         then
 428                 LLVM_GCC_CHECK="$LLVMGCCDIR/bin/gcc"
 429         fi
 430 fi
 431 llvmgccwarn=no
 432 AC_MSG_RESULT($LLVM_GCC_CHECK)
 433 if test "$LLVM_GCC_CHECK" = "no"
 434 then
 435     llvmgccwarn=yes
 436 fi
 437 AC_MSG_CHECKING([whether llvm-gcc is sane])
 438 LLVM_GCC_SANE=no
 439 if test -x "$LLVM_GCC_CHECK"
 440 then
 441         cp /dev/null conftest.c
 442     "$LLVM_GCC_CHECK" -S -o - conftest.c | grep implementation > /dev/null 2>&1
 443         if test $? -eq 0
 444         then
 445                 LLVM_GCC_SANE=yes
 446         fi
 447         rm conftest.c
 448         llvmcc1path=`"$LLVM_GCC_CHECK" --print-prog-name=cc1`
 449         AC_SUBST(LLVMCC1,$llvmcc1path)
 450         llvmcc1pluspath=`"$LLVM_GCC_CHECK" --print-prog-name=cc1plus`
 451         AC_SUBST(LLVMCC1PLUS,$llvmcc1pluspath)
 452 fi
 453 AC_MSG_RESULT($LLVM_GCC_SANE)
 454 if test "$LLVM_GCC_SANE" = "no"
 455 then
 456         llvmgccwarn=yes
 457 fi
 458
 459 dnl Location of the bytecode repository
 460 AC_ARG_WITH(bcrepos,AC_HELP_STRING([--with-bcrepos],[Location of Bytecode Repository]),AC_SUBST(BCR,[$withval]),AC_SUBST(BCR,[/home/vadve/lattner/LLVMPrograms]))
 461
 462 dnl Location of PAPI
 463 AC_ARG_WITH(papi,AC_HELP_STRING([--with-papi],[Location of PAPI]),AC_SUBST(PAPIDIR,[$withval]),AC_SUBST(PAPIDIR,[/home/vadve/shared/Sparc/papi-2.3.4.1]))
 464
 465 dnl Get libtool's idea of what the shared library suffix is.
 466 dnl (This is a hack; it relies on undocumented behavior.)
 467 AC_MSG_CHECKING([for shared library suffix])
 468 eval "SHLIBEXT=$shrext"
 469 AC_MSG_RESULT($SHLIBEXT)
 470 dnl Propagate it to the Makefiles and config.h (for gccld & bugpoint).
 471 AC_SUBST(SHLIBEXT,$SHLIBEXT)
 472 AC_DEFINE_UNQUOTED(SHLIBEXT,"$SHLIBEXT",
 473                    [Extension that shared libraries have, e.g., ".so".])
 474
 475 dnl Create the output files
 476 AC_OUTPUT(Makefile.config
 477  include/Support/DataTypes.h
 478  include/Support/ThreadSupport.h
 479  include/Support/hash_map
 480  include/Support/hash_set
 481  include/Support/iterator)
 482
 483 dnl Warn loudly if llvm-gcc was not obviously working
 484 if test $llvmgccwarn = yes
 485 then
 486         AC_MSG_WARN([***** llvm C/C++ front end was not found, or does not])
 487         AC_MSG_WARN([***** appear to be working.])
 488         AC_MSG_WARN([***** ])
 489         AC_MSG_WARN([***** Please check configure's --with-llvmgccdir option.])
 490         AC_MSG_WARN([***** Runtime libraries (in llvm/runtime) will not be built,])
 491         AC_MSG_WARN([***** but you should be able to build the llvm tools.])
 492 fi
 493