boehm-gc/configure.ac

   1 # Copyright (c) 1999, 2000, 2001, 2002, 2003 by Red Hat, Inc. All rights reserved.
   2 # Copyright 2004 Nathanael Nerode
   3 #
   4 # THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
   5 # OR IMPLIED.  ANY USE IS AT YOUR OWN RISK.
   6 #
   7 # Permission is hereby granted to use or copy this program
   8 # for any purpose,  provided the above notices are retained on all copies.
   9 # Permission to modify the code and to distribute modified code is granted,
  10 # provided the above notices are retained, and a notice that the code was
  11 # modified is included with the above copyright notice.
  12 #
  13 # Original author: Tom Tromey
  14 # Modified by Nathanael Nerode
  15
  16 dnl Process this file with autoconf to produce configure.
  17
  18 AC_PREREQ(2.59)
  19 AC_INIT(gcj_mlc.c)
  20
  21 # This works around the fact that libtool configuration may change LD
  22 # for this particular configuration, but some shells, instead of
  23 # keeping the changes in LD private, export them just because LD is
  24 # exported.
  25 ORIGINAL_LD_FOR_MULTILIBS=$LD
  26
  27 AM_ENABLE_MULTILIB(, ..)
  28
  29 AC_CANONICAL_SYSTEM
  30
  31 # Get the 'noncanonical' system names.
  32 _GCC_TOPLEV_NONCANONICAL_BUILD
  33 _GCC_TOPLEV_NONCANONICAL_HOST
  34 _GCC_TOPLEV_NONCANONICAL_TARGET
  35
  36 # This works around an automake problem.
  37 mkinstalldirs="`cd $ac_aux_dir && ${PWDCMD-pwd}`/mkinstalldirs"
  38 AC_SUBST(mkinstalldirs)
  39
  40 AM_INIT_AUTOMAKE(gc, 6.1a1, no-define)
  41
  42 # The autoconf 2.5x version of the no-executables hack.
  43 sinclude(../config/no-executables.m4)
  44 GCC_NO_EXECUTABLES
  45
  46 # Yak.  We must force CC and CXX to /not/ be precious variables; otherwise
  47 # the wrong, non-multilib-adjusted value will be used in multilibs.
  48 # As a side effect, we have to subst CFLAGS and CXXFLAGS ourselves.
  49
  50 m4_rename([_AC_ARG_VAR_PRECIOUS],[real_PRECIOUS])
  51 m4_define([_AC_ARG_VAR_PRECIOUS],[])
  52 AC_PROG_CC
  53 AC_PROG_CXX
  54 m4_rename([real_PRECIOUS],[_AC_ARG_VAR_PRECIOUS])
  55
  56 AM_PROG_CC_C_O
  57
  58 AC_SUBST(CFLAGS)
  59 AC_SUBST(CXXFLAGS)
  60
  61 # Newer automakes demand CCAS and CCASFLAGS.
  62 : ${CCAS='$(CC)'}
  63 : ${CCASFLAGS='$(CFLAGS)'}
  64 AC_SUBST(CCAS)
  65 AC_SUBST(CCASFLAGS)
  66
  67 AC_CHECK_TOOL(AS, as)
  68 AC_CHECK_TOOL(AR, ar)
  69 AC_CHECK_TOOL(RANLIB, ranlib, :)
  70
  71 AC_PROG_INSTALL
  72
  73 AM_MAINTAINER_MODE
  74
  75 . [$]{srcdir}/configure.host
  76
  77 case [$]{gc_basedir} in
  78 /* | [A-Za-z]:[/\\]*) gc_flagbasedir=[$]{gc_basedir} ;;
  79 *) gc_flagbasedir='[$](top_builddir)/'[$]{gc_basedir} ;;
  80 esac
  81
  82 gc_cflags="[$]{gc_cflags} -I"'[$](top_builddir)'"/./targ-include -I[$]{gc_flagbasedir}/libc/include"
  83 case "${host}" in
  84   *-*-cygwin32*)
  85     gc_cflags="[$]{gc_cflags} -I[$]{gc_flagbasedir}/../winsup/include"
  86     ;;
  87 esac
  88
  89 dnl gc_cflags="[$]{gc_cflags} -fno-builtin"
  90
  91 GC_CFLAGS=${gc_cflags}
  92 AC_SUBST(GC_CFLAGS)
  93
  94 AM_PROG_LIBTOOL
  95
  96 dnl We use these options to decide which functions to include.
  97 AC_ARG_WITH(target-subdir,
  98 [  --with-target-subdir=SUBDIR
  99                           configuring with a cross compiler])
 100 AC_ARG_WITH(cross-host,
 101 [  --with-cross-host=HOST  configuring with a cross compiler])
 102
 103 AC_MSG_CHECKING([for thread model used by GCC])
 104 THREADS=`$CC -v 2>&1 | sed -n 's/^Thread model: //p'`
 105 if test -z "$THREADS"; then
 106    THREADS=no
 107 fi
 108 AC_MSG_RESULT([$THREADS])
 109
 110 AC_ARG_ENABLE(parallel-mark,
 111 [  --enable-parallel-mark       parallelize marking and free list construction],
 112    [case "$THREADS" in
 113       no | none | single)
 114         AC_MSG_ERROR([Parallel mark requires --enable-threads=x spec])
 115         ;;
 116     esac]
 117 )
 118
 119 AM_CPPFLAGS="-I`cd $srcdir && ${PWDCMD-pwd}`/include"
 120 THREADLIBS=
 121 case "$THREADS" in
 122  no | none | single)
 123     THREADS=none
 124     ;;
 125  posix | pthreads)
 126     THREADS=posix
 127     THREADLIBS=-lpthread
 128     case "$host" in
 129      x86-*-linux* | ia64-*-linux* | i586-*-linux* | i686-*-linux* | x86_64-*-linux* | alpha-*-linux*)
 130         AC_DEFINE(GC_LINUX_THREADS)
 131         AC_DEFINE(_REENTRANT)
 132         if test "${enable_parallel_mark}" = yes; then
 133           AC_DEFINE(PARALLEL_MARK)
 134         fi
 135         AC_DEFINE(THREAD_LOCAL_ALLOC)
 136         ;;
 137      *-*-linux*)
 138         AC_DEFINE(GC_LINUX_THREADS)
 139         AC_DEFINE(_REENTRANT)
 140         ;;
 141      *-*-aix*)
 142         AC_DEFINE(GC_AIX_THREADS)
 143         AC_DEFINE(_REENTRANT)
 144         ;;
 145      *-*-hpux*)
 146         AC_MSG_WARN("Only HP/UX 11 threads are supported.")
 147         AC_DEFINE(GC_HPUX_THREADS)
 148         AC_DEFINE(_POSIX_C_SOURCE,199506L)
 149         if test "${enable_parallel_mark}" = yes; then
 150           AC_DEFINE(PARALLEL_MARK)
 151         fi
 152         AC_DEFINE(THREAD_LOCAL_ALLOC)
 153         THREADLIBS="-lpthread -lrt"
 154         ;;
 155      *-*-freebsd*)
 156         AC_MSG_WARN("FreeBSD does not yet fully support threads with Boehm GC.")
 157         AC_DEFINE(GC_FREEBSD_THREADS)
 158         AM_CPPFLAGS="$AM_CPPFLAGS -pthread"
 159         THREADLIBS=-pthread
 160         ;;
 161      *-*-solaris*)
 162         AC_DEFINE(GC_SOLARIS_THREADS)
 163         AC_DEFINE(GC_SOLARIS_PTHREADS)
 164         ;;
 165      *-*-irix*)
 166         AC_DEFINE(GC_IRIX_THREADS)
 167         ;;
 168      *-*-cygwin*)
 169         AC_DEFINE(GC_WIN32_THREADS)
 170         ;;
 171      *-*-darwin*)
 172         AC_DEFINE(GC_DARWIN_THREADS)
 173         AC_DEFINE(THREAD_LOCAL_ALLOC)
 174         if test "${enable_parallel_mark}" = yes; then
 175           AC_DEFINE(PARALLEL_MARK)
 176         fi
 177         ;;
 178      *-*-osf*)
 179         AC_DEFINE(GC_OSF1_THREADS)
 180         if test "${enable_parallel_mark}" = yes; then
 181           AC_DEFINE(PARALLEL_MARK)
 182           AC_DEFINE(THREAD_LOCAL_ALLOC)
 183           # May want to enable it in other cases, too.
 184           # Measurements havent yet been done.
 185         fi
 186         AM_CPPFLAGS="$AM_CPPFLAGS -pthread"
 187         THREADLIBS="-lpthread -lrt"
 188         ;;
 189     esac
 190     ;;
 191  win32)
 192     AC_DEFINE(GC_WIN32_THREADS)
 193     dnl Old wine getenv may not return NULL for missing entry.
 194     dnl Define EMPTY_GETENV_RESULTS here to work around the bug.
 195     ;;
 196  dgux386)
 197     THREADS=dgux386
 198 AC_MSG_RESULT($THREADLIBS)
 199     # Use pthread GCC  switch
 200     THREADLIBS=-pthread
 201     if test "${enable_parallel_mark}" = yes; then
 202         AC_DEFINE(PARALLEL_MARK)
 203     fi
 204     AC_DEFINE(THREAD_LOCAL_ALLOC)
 205     AC_DEFINE(GC_DGUX386_THREADS)
 206     AC_DEFINE(DGUX_THREADS)
 207     # Enable _POSIX4A_DRAFT10_SOURCE with flag -pthread
 208     AM_CPPFLAGS="-pthread $AM_CPPFLAGS"
 209     ;;
 210  aix)
 211     THREADS=posix
 212     THREADLIBS=-lpthread
 213     AC_DEFINE(GC_AIX_THREADS)
 214     AC_DEFINE(_REENTRANT)
 215     ;;
 216  decosf1 | irix | mach | os2 | solaris | dce | vxworks)
 217     AC_MSG_ERROR(thread package $THREADS not yet supported)
 218     ;;
 219  *)
 220     AC_MSG_ERROR($THREADS is an unknown thread package)
 221     ;;
 222 esac
 223 AC_SUBST(THREADLIBS)
 224
 225 case "$host" in
 226    powerpc-*-darwin*)
 227       powerpc_darwin=true
 228       ;;
 229 esac
 230 AM_CONDITIONAL(POWERPC_DARWIN,test x$powerpc_darwin = xtrue)
 231
 232 # We never want libdl on darwin. It is a fake libdl that just ends up making
 233 # dyld calls anyway
 234 case "$host" in
 235   *-*-darwin*) ;;
 236   *)
 237     AC_CHECK_LIB(dl, dlopen, EXTRA_TEST_LIBS="$EXTRA_TEST_LIBS -ldl")
 238     ;;
 239 esac
 240
 241 AC_SUBST(EXTRA_TEST_LIBS)
 242
 243 target_all=libgcjgc.la
 244 AC_SUBST(target_all)
 245 AC_SUBST(target_noncanonical)
 246
 247 dnl If the target is an eCos system, use the appropriate eCos
 248 dnl I/O routines.
 249 dnl FIXME: this should not be a local option but a global target
 250 dnl system; at present there is no eCos target.
 251 TARGET_ECOS="no"
 252 AC_ARG_WITH(ecos,
 253 [  --with-ecos             enable runtime eCos target support],
 254 TARGET_ECOS="$with_ecos"
 255 )
 256
 257 addobjs=
 258 addlibs=
 259 addincludes=
 260 addtests=
 261 case "$TARGET_ECOS" in
 262    no)
 263       ;;
 264    *)
 265       AC_DEFINE(ECOS)
 266       AM_CPPFLAGS="${AM_CPPFLAGS} -I${TARGET_ECOS}/include"
 267       addobjs="$addobjs ecos.lo"
 268       ;;
 269 esac
 270
 271 if test "${enable_cplusplus}" = yes; then
 272       addincludes="$addincludes include/gc_cpp.h include/gc_allocator.h"
 273       addtests="$addtests test_cpp"
 274 fi
 275
 276 AM_CONDITIONAL(CPLUSPLUS, test "${enable_cplusplus}" = yes)
 277
 278 AC_SUBST(CXX)
 279
 280 AC_SUBST(AM_CPPFLAGS)
 281
 282 # Configuration of shared libraries
 283 #
 284 AC_MSG_CHECKING(whether to build shared libraries)
 285 AC_ENABLE_SHARED
 286
 287 case "$host" in
 288  alpha-*-openbsd*)
 289      enable_shared=no
 290      AC_MSG_RESULT(no)
 291      ;;
 292  *)
 293      AC_MSG_RESULT(yes)
 294      ;;
 295 esac
 296
 297 # Configuration of machine-dependent code
 298 #
 299 # We don't set NO_EXECUTE_PERMISSION by default because gcj (and
 300 # anything else that creates trampolines in gc-allocated memory)
 301 # always needs exec permission.  The exceptions to this are IA-64 and
 302 # some variations of Power PC, where trampolines don't contain
 303 # executable code.
 304 #
 305 AC_MSG_CHECKING(which machine-dependent code should be used)
 306 machdep=
 307 case "$host" in
 308  alpha*-*-openbsd*)
 309     machdep="alpha_mach_dep.lo"
 310     if test x"${ac_cv_lib_dl_dlopen}" != xyes ; then
 311        AC_MSG_WARN(OpenBSD/Alpha without dlopen(). Shared library support is disabled)
 312     fi
 313     ;;
 314  alpha*-*-linux*)
 315     machdep="alpha_mach_dep.lo"
 316     ;;
 317  i?86-*-solaris2.[[89]] | i?86-*-solaris2.1?)
 318     AC_DEFINE(SOLARIS25_PROC_VDB_BUG_FIXED)
 319     ;;
 320  mipstx39-*-elf*)
 321     machdep="mips_ultrix_mach_dep.lo"
 322     AC_DEFINE(STACKBASE, __stackbase)
 323     AC_DEFINE(DATASTART_IS_ETEXT)
 324     ;;
 325  mips-dec-ultrix*)
 326     machdep="mips_ultrix_mach-dep.lo"
 327     ;;
 328  mips-nec-sysv*|mips-unknown-sysv*)
 329     ;;
 330  mips*-*-linux*)
 331     ;;
 332  mips-*-*)
 333     machdep="mips_sgi_mach_dep.lo"
 334     ;;
 335  sparc-*-netbsd*)
 336     machdep="sparc_netbsd_mach_dep.lo"
 337     ;;
 338  sparc-sun-solaris2.3)
 339     machdep="sparc_mach_dep.lo"
 340     AC_DEFINE(SUNOS53_SHARED_LIB)
 341     ;;
 342  sparc-sun-solaris2.*)
 343     machdep="sparc_mach_dep.lo"
 344     ;;
 345  ia64-*-*)
 346     AC_DEFINE(NO_EXECUTE_PERMISSION)
 347     machdep="mach_dep.lo ia64_save_regs_in_stack.lo"
 348     ;;
 349 esac
 350 if test x"$machdep" = x; then
 351 AC_MSG_RESULT($machdep)
 352    machdep="mach_dep.lo"
 353 fi
 354 addobjs="$addobjs $machdep"
 355 AC_SUBST(addobjs)
 356 AC_SUBST(addincludes)
 357 AC_SUBST(addlibs)
 358 AC_SUBST(addtests)
 359
 360 AC_PROG_LIBTOOL
 361
 362 #
 363 # Check for AViiON Machines running DGUX
 364 #
 365 AC_MSG_CHECKING(if host is AViiON running DGUX)
 366 ac_is_dgux=no
 367 AC_CHECK_HEADER(sys/dg_sys_info.h,
 368 [ac_is_dgux=yes;])
 369
 370 AC_MSG_RESULT($ac_is_dgux)
 371     ## :GOTCHA: we do not check anything but sys/dg_sys_info.h
 372 if test $ac_is_dgux = yes; then
 373     if test "$enable_full_debug" = "yes"; then
 374       CFLAGS="-g -mstandard -DDGUX -D_DGUX_SOURCE -Di386 -mno-legend -O2"
 375       CXXFLAGS="-g -mstandard -DDGUX -D_DGUX_SOURCE -Di386 -mno-legend -O2"
 376     else
 377       CFLAGS="-DDGUX -D_DGUX_SOURCE -Di386 -mno-legend -O2"
 378       CXXFLAGS="-DDGUX -D_DGUX_SOURCE -Di386 -mno-legend -O2"
 379     fi
 380     AC_SUBST(CFLAGS)
 381     AC_SUBST(CXXFLAGS)
 382 fi
 383
 384 dnl We use these options to decide which functions to include.
 385 AC_ARG_WITH(target-subdir,
 386 [  --with-target-subdir=SUBDIR
 387                           configuring with a cross compiler])
 388 AC_ARG_WITH(cross-host,
 389 [  --with-cross-host=HOST  configuring with a cross compiler])
 390
 391 dnl As of 4.13a2, the collector will not properly work on Solaris when
 392 dnl built with gcc and -O.  So we remove -O in the appropriate case.
 393 dnl
 394 AC_MSG_CHECKING(whether Solaris gcc optimization fix is necessary)
 395 case "$host" in
 396  sparc-sun-solaris2*|*aix*)
 397     if test "$GCC" = yes; then
 398        AC_MSG_RESULT(yes)
 399        new_CFLAGS=
 400        for i in $CFLAGS; do
 401           case "$i" in
 402            -O*)
 403               ;;
 404            *)
 405               new_CFLAGS="$new_CFLAGS $i"
 406               ;;
 407           esac
 408        done
 409        CFLAGS="$new_CFLAGS"
 410     else
 411        AC_MSG_RESULT(no)
 412     fi
 413     ;;
 414  *) AC_MSG_RESULT(no) ;;
 415 esac
 416
 417 dnl We need to override the top-level CFLAGS.  This is how we do it.
 418 MY_CFLAGS="$CFLAGS"
 419 AC_SUBST(MY_CFLAGS)
 420
 421 dnl Include defines that have become de facto standard.
 422 dnl ALL_INTERIOR_POINTERS can be overridden in startup code.
 423 AC_DEFINE(SILENT)
 424 AC_DEFINE(NO_SIGNALS)
 425 AC_DEFINE(ALL_INTERIOR_POINTERS)
 426
 427 dnl By default, make the library as general as possible.
 428 AC_DEFINE(JAVA_FINALIZATION)
 429 AC_DEFINE(GC_GCJ_SUPPORT)
 430 AC_DEFINE(ATOMIC_UNCOLLECTABLE)
 431
 432 dnl This is something of a hack.  When cross-compiling we turn off
 433 dnl some functionality. These is only correct when targetting an
 434 dnl embedded system.  FIXME.
 435 if test -n "${with_cross_host}"; then
 436    AC_DEFINE(NO_SIGSET)
 437    AC_DEFINE(NO_DEBUGGING)
 438 fi
 439
 440 AC_ARG_ENABLE(full-debug,
 441 [  --enable-full-debug  include full support for pointer backtracing etc.],
 442 [ if test "$enable_full_debug" = "yes"; then
 443     AC_MSG_WARN("Must define GC_DEBUG and use debug alloc. in clients.")
 444     AC_DEFINE(KEEP_BACK_PTRS)
 445     AC_DEFINE(DBG_HDRS_ALL)
 446     case $host in
 447       ia64-*-linux* )
 448         AC_DEFINE(MAKE_BACK_GRAPH)
 449       ;;
 450       x86-*-linux* | i586-*-linux* | i686-*-linux* | x86_64-*-linux* )
 451         AC_DEFINE(MAKE_BACK_GRAPH)
 452         AC_MSG_WARN("Client must not use -fomit-frame-pointer.")
 453         AC_DEFINE(SAVE_CALL_COUNT, 8)
 454       ;;
 455       i[3456]86-*-dgux*)
 456         AC_DEFINE(MAKE_BACK_GRAPH)
 457       ;;
 458     esac ]
 459   fi)
 460
 461 if test -n "$with_cross_host" &&
 462    test x"$with_cross_host" != x"no"; then
 463   toolexecdir='$(exec_prefix)/$(target_noncanonical)'
 464   toolexeclibdir='$(toolexecdir)/lib'
 465 else
 466   toolexecdir='$(libdir)/gcc-lib/$(target_noncanonical)'
 467   toolexeclibdir='$(libdir)'
 468 fi
 469 multi_os_directory=`$CC -print-multi-os-directory`
 470 case $multi_os_directory in
 471   .) ;; # Avoid trailing /.
 472   *) toolexeclibdir=$toolexeclibdir/$multi_os_directory ;;
 473 esac
 474 AC_SUBST(toolexecdir)
 475 AC_SUBST(toolexeclibdir)
 476
 477 if test "${multilib}" = "yes"; then
 478   multilib_arg="--enable-multilib"
 479 else
 480   multilib_arg=
 481 fi
 482
 483 AC_CONFIG_COMMANDS(boehm-cflags, [
 484 dnl Put all the -I and -D options in a file.
 485 echo "$AM_CPPFLAGS $DEFS" > boehm-cflags], [
 486 DEFS="$DEFS"
 487 AM_CPPFLAGS="$AM_CPPFLAGS"])
 488 AC_CONFIG_FILES(Makefile include/Makefile)
 489 AC_OUTPUT