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
  20 AC_CONFIG_SRCDIR(gcj_mlc.c)
  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_HOST
  30 AC_CANONICAL_TARGET
  31
  32 # Get the 'noncanonical' system names.
  33 ACX_NONCANONICAL_TARGET
  34
  35 # This works around an automake problem.
  36 mkinstalldirs="`cd $ac_aux_dir && ${PWDCMD-pwd}`/mkinstalldirs"
  37 AC_SUBST(mkinstalldirs)
  38
  39 AM_INIT_AUTOMAKE(gc, 6.6, no-define)
  40
  41 # The autoconf 2.5x version of the no-executables hack.
  42 GCC_NO_EXECUTABLES
  43
  44 # Yak.  We must force CC and CXX to /not/ be precious variables; otherwise
  45 # the wrong, non-multilib-adjusted value will be used in multilibs.
  46 # As a side effect, we have to subst CFLAGS and CXXFLAGS ourselves.
  47
  48 m4_rename([_AC_ARG_VAR_PRECIOUS],[real_PRECIOUS])
  49 m4_define([_AC_ARG_VAR_PRECIOUS],[])
  50 AC_PROG_CC
  51 AC_PROG_CXX
  52 m4_rename([real_PRECIOUS],[_AC_ARG_VAR_PRECIOUS])
  53
  54 AM_PROG_CC_C_O
  55
  56 AC_SUBST(CFLAGS)
  57 AC_SUBST(CXXFLAGS)
  58
  59 # Newer automakes demand CCAS and CCASFLAGS.
  60 : ${CCAS='$(CC)'}
  61 : ${CCASFLAGS='$(CFLAGS)'}
  62 AC_SUBST(CCAS)
  63 AC_SUBST(CCASFLAGS)
  64
  65 AC_CHECK_TOOL(AS, as)
  66 AC_CHECK_TOOL(AR, ar)
  67 AC_CHECK_TOOL(RANLIB, ranlib, :)
  68
  69 AC_PROG_INSTALL
  70
  71 AM_MAINTAINER_MODE
  72
  73 . ${srcdir}/configure.host
  74
  75 case ${gc_basedir} in
  76 /* | [A-Za-z]:[/\\]*) gc_flagbasedir=${gc_basedir} ;;
  77 *) gc_flagbasedir='$(top_builddir)/'${gc_basedir} ;;
  78 esac
  79
  80 gc_cflags="${gc_cflags} -Iinclude -I"'$(top_builddir)'"/./targ-include -I${gc_flagbasedir}/libc/include"
  81 case "${host}" in
  82   *-*-cygwin32*)
  83     gc_cflags="${gc_cflags} -I${gc_flagbasedir}/../winsup/include"
  84     ;;
  85 esac
  86
  87 dnl gc_cflags="${gc_cflags} -fno-builtin"
  88
  89 GC_CFLAGS=${gc_cflags}
  90 AC_SUBST(GC_CFLAGS)
  91
  92 AC_PROG_LIBTOOL
  93
  94 dnl We use these options to decide which functions to include.
  95 AC_ARG_WITH(target-subdir,
  96 [  --with-target-subdir=SUBDIR
  97                           configuring with a cross compiler])
  98 AC_ARG_WITH(cross-host,
  99 [  --with-cross-host=HOST  configuring with a cross compiler])
 100
 101 AC_MSG_CHECKING([for thread model used by GCC])
 102 THREADS=`$CC -v 2>&1 | sed -n 's/^Thread model: //p'`
 103 if test -z "$THREADS"; then
 104    THREADS=no
 105 fi
 106 AC_MSG_RESULT([$THREADS])
 107
 108 AC_ARG_ENABLE(parallel-mark,
 109 [  --enable-parallel-mark       parallelize marking and free list construction],
 110    [case "$THREADS" in
 111       no | none | single)
 112         AC_MSG_ERROR([Parallel mark requires --enable-threads=x spec])
 113         ;;
 114     esac]
 115 )
 116
 117 AM_CPPFLAGS="-I`cd $srcdir && ${PWDCMD-pwd}`/include"
 118 THREADLIBS=
 119 case "$THREADS" in
 120  no | none | single)
 121     THREADS=none
 122     ;;
 123  posix | posix95 | pthreads)
 124     THREADS=posix
 125     THREADLIBS=-lpthread
 126     case "$host" in
 127      x86-*-linux* | ia64-*-linux* | i586-*-linux* | i686-*-linux* | x86_64-*-linux* | alpha-*-linux*)
 128         AC_DEFINE(GC_LINUX_THREADS,1,[support for Xavier Leroy's Linux threads])
 129         AC_DEFINE(_REENTRANT,1,[Use reentrant code])
 130         if test "${enable_parallel_mark}" = yes; then
 131           AC_DEFINE(PARALLEL_MARK,1,[allow the marker to run in multiple threads])
 132         fi
 133         AC_DEFINE(THREAD_LOCAL_ALLOC,1,[define GC_local_malloc() & GC_local_malloc_atomic()])
 134         ;;
 135      *-*-linux*)
 136         AC_DEFINE(GC_LINUX_THREADS,1)
 137         AC_DEFINE(_REENTRANT,1)
 138         ;;
 139      *-*-aix*)
 140         AC_DEFINE(GC_AIX_THREADS,1,[support AIX threads])
 141         AC_DEFINE(_REENTRANT,1)
 142         ;;
 143      *-*-hpux*)
 144         AC_MSG_WARN("Only HP/UX 11 threads are supported.")
 145         AC_DEFINE(GC_HPUX_THREADS,1,[enables support for HP/UX 11 pthreads])
 146         AC_DEFINE(_POSIX_C_SOURCE,199506L,[POSIX version of C Source])
 147         if test "${enable_parallel_mark}" = yes; then
 148           AC_DEFINE(PARALLEL_MARK,1)
 149         fi
 150         AC_DEFINE(THREAD_LOCAL_ALLOC,1)
 151         THREADLIBS="-lpthread -lrt"
 152         ;;
 153      *-*-freebsd*)
 154         AC_MSG_WARN("FreeBSD does not yet fully support threads with Boehm GC.")
 155         AC_DEFINE(GC_FREEBSD_THREADS,1,[support FreeBSD threads])
 156         AM_CPPFLAGS="$AM_CPPFLAGS -pthread"
 157         THREADLIBS=-pthread
 158         ;;
 159      *-*-solaris*)
 160         AC_DEFINE(GC_SOLARIS_THREADS,1,[support for Solaris (thr_) threads])
 161         AC_DEFINE(GC_SOLARIS_PTHREADS,1,[support for Solaris pthreads])
 162         ;;
 163      *-*-irix*)
 164         AC_DEFINE(GC_IRIX_THREADS,1,[support for Irix pthreads])
 165         ;;
 166      *-*-cygwin*)
 167         AC_DEFINE(GC_WIN32_THREADS,1,[support for win32 threads])
 168         ;;
 169      *-*-darwin*)
 170         AC_DEFINE(GC_DARWIN_THREADS,1,[support for Mac OS X pthreads])
 171         AC_DEFINE(THREAD_LOCAL_ALLOC,1)
 172         if test "${enable_parallel_mark}" = yes; then
 173           AC_DEFINE(PARALLEL_MARK,1)
 174         fi
 175         ;;
 176      *-*-osf*)
 177         AC_DEFINE(GC_OSF1_THREADS,1,[support for Tru64 pthreads])
 178         if test "${enable_parallel_mark}" = yes; then
 179           AC_DEFINE(PARALLEL_MARK,1)
 180           AC_DEFINE(THREAD_LOCAL_ALLOC,1)
 181           # May want to enable it in other cases, too.
 182           # Measurements havent yet been done.
 183         fi
 184         AM_CPPFLAGS="$AM_CPPFLAGS -pthread"
 185         THREADLIBS="-lpthread -lrt"
 186         ;;
 187     esac
 188     ;;
 189  win32)
 190     AC_DEFINE(GC_WIN32_THREADS,1)
 191     dnl Old wine getenv may not return NULL for missing entry.
 192     dnl Define EMPTY_GETENV_RESULTS here to work around the bug.
 193     ;;
 194  dgux386)
 195     THREADS=dgux386
 196 AC_MSG_RESULT($THREADLIBS)
 197     # Use pthread GCC  switch
 198     THREADLIBS=-pthread
 199     if test "${enable_parallel_mark}" = yes; then
 200         AC_DEFINE(PARALLEL_MARK,1)
 201     fi
 202     AC_DEFINE(THREAD_LOCAL_ALLOC,1)
 203     AC_DEFINE(GC_DGUX386_THREADS,1,[support for DB/UX on I386 threads])
 204     AC_DEFINE(DGUX_THREADS,1,[No description])
 205     # Enable _POSIX4A_DRAFT10_SOURCE with flag -pthread
 206     AM_CPPFLAGS="-pthread $AM_CPPFLAGS"
 207     ;;
 208  aix)
 209     THREADS=posix
 210     THREADLIBS=-lpthread
 211     AC_DEFINE(GC_AIX_THREADS,1)
 212     AC_DEFINE(_REENTRANT,1)
 213     ;;
 214  decosf1 | irix | mach | os2 | solaris | dce | vxworks)
 215     AC_MSG_ERROR(thread package $THREADS not yet supported)
 216     ;;
 217  *)
 218     AC_MSG_ERROR($THREADS is an unknown thread package)
 219     ;;
 220 esac
 221 AC_SUBST(THREADLIBS)
 222
 223 case "$host" in
 224    powerpc-*-darwin*)
 225       powerpc_darwin=true
 226       ;;
 227 esac
 228 AM_CONDITIONAL(POWERPC_DARWIN,test x$powerpc_darwin = xtrue)
 229
 230 # We never want libdl on darwin. It is a fake libdl that just ends up making
 231 # dyld calls anyway
 232 case "$host" in
 233   *-*-darwin*) ;;
 234   *)
 235     AC_CHECK_LIB(dl, dlopen, EXTRA_TEST_LIBS="$EXTRA_TEST_LIBS -ldl")
 236     ;;
 237 esac
 238
 239 AC_SUBST(EXTRA_TEST_LIBS)
 240
 241 target_all=libgcjgc.la
 242 AC_SUBST(target_all)
 243
 244 dnl If the target is an eCos system, use the appropriate eCos
 245 dnl I/O routines.
 246 dnl FIXME: this should not be a local option but a global target
 247 dnl system; at present there is no eCos target.
 248 TARGET_ECOS="no"
 249 AC_ARG_WITH(ecos,
 250 [  --with-ecos             enable runtime eCos target support],
 251 TARGET_ECOS="$with_ecos"
 252 )
 253
 254 addobjs=
 255 addlibs=
 256 addincludes=
 257 addtests=
 258 case "$TARGET_ECOS" in
 259    no)
 260       ;;
 261    *)
 262       AC_DEFINE(ECOS,1,[Target is ECOS])
 263       AM_CPPFLAGS="${AM_CPPFLAGS} -I${TARGET_ECOS}/include"
 264       addobjs="$addobjs ecos.lo"
 265       ;;
 266 esac
 267
 268 if test "${enable_cplusplus}" = yes; then
 269       addincludes="$addincludes include/gc_cpp.h include/gc_allocator.h"
 270       addtests="$addtests test_cpp"
 271 fi
 272
 273 AM_CONDITIONAL(CPLUSPLUS, test "${enable_cplusplus}" = yes)
 274
 275 AC_SUBST(CXX)
 276
 277 AC_SUBST(AM_CPPFLAGS)
 278
 279 # Configuration of shared libraries
 280 #
 281 AC_MSG_CHECKING(whether to build shared libraries)
 282 AC_ENABLE_SHARED
 283
 284 case "$host" in
 285  alpha-*-openbsd*)
 286      enable_shared=no
 287      AC_MSG_RESULT(no)
 288      ;;
 289  *)
 290      AC_MSG_RESULT(yes)
 291      ;;
 292 esac
 293
 294 # Configuration of machine-dependent code
 295 #
 296 # We don't set NO_EXECUTE_PERMISSION by default because gcj (and
 297 # anything else that creates trampolines in gc-allocated memory)
 298 # always needs exec permission.  The exceptions to this are IA-64 and
 299 # some variations of Power PC, where trampolines don't contain
 300 # executable code.
 301 #
 302 AC_MSG_CHECKING(which machine-dependent code should be used)
 303 machdep=
 304 case "$host" in
 305  alpha*-*-openbsd*)
 306     machdep="alpha_mach_dep.lo"
 307     if test x"${ac_cv_lib_dl_dlopen}" != xyes ; then
 308        AC_MSG_WARN(OpenBSD/Alpha without dlopen(). Shared library support is disabled)
 309     fi
 310     ;;
 311  alpha*-*-linux*)
 312     machdep="alpha_mach_dep.lo"
 313     ;;
 314  i?86-*-solaris2.[[89]] | i?86-*-solaris2.1?)
 315     AC_DEFINE(SOLARIS25_PROC_VDB_BUG_FIXED,1,[PROC_VDB in Solaris 2.5 gives wrong values for dirty bits])
 316     ;;
 317  mipstx39-*-elf*)
 318     machdep="mips_ultrix_mach_dep.lo"
 319     AC_DEFINE(STACKBASE, __stackbase,[No description])
 320     AC_DEFINE(DATASTART_IS_ETEXT,1,[No description])
 321     ;;
 322  mips-dec-ultrix*)
 323     machdep="mips_ultrix_mach-dep.lo"
 324     ;;
 325  mips-nec-sysv*|mips-unknown-sysv*)
 326     ;;
 327  mips*-*-linux*)
 328     ;;
 329  mips-*-*)
 330     machdep="mips_sgi_mach_dep.lo"
 331     ;;
 332  sparc-*-netbsd*)
 333     machdep="sparc_netbsd_mach_dep.lo"
 334     ;;
 335  sparc-sun-solaris2.3)
 336     machdep="sparc_mach_dep.lo"
 337     AC_DEFINE(SUNOS53_SHARED_LIB,1,[Avoid Solaris 5.3 dynamic library bug])
 338     ;;
 339  sparc*-sun-solaris2.*)
 340     machdep="sparc_mach_dep.lo"
 341     ;;
 342  ia64-*-*)
 343     AC_DEFINE(NO_EXECUTE_PERMISSION,1,[cause some or all of the heap to not have execute permission])
 344     machdep="mach_dep.lo ia64_save_regs_in_stack.lo"
 345     ;;
 346 esac
 347 if test x"$machdep" = x; then
 348 AC_MSG_RESULT($machdep)
 349    machdep="mach_dep.lo"
 350 fi
 351 addobjs="$addobjs $machdep"
 352 AC_SUBST(addobjs)
 353 AC_SUBST(addincludes)
 354 AC_SUBST(addlibs)
 355 AC_SUBST(addtests)
 356
 357 #
 358 # Check for AViiON Machines running DGUX
 359 #
 360 AC_MSG_CHECKING(if host is AViiON running DGUX)
 361 ac_is_dgux=no
 362 AC_CHECK_HEADER(sys/dg_sys_info.h,
 363 [ac_is_dgux=yes;])
 364
 365 AC_MSG_RESULT($ac_is_dgux)
 366     ## :GOTCHA: we do not check anything but sys/dg_sys_info.h
 367 if test $ac_is_dgux = yes; then
 368     if test "$enable_full_debug" = "yes"; then
 369       CFLAGS="-g -mstandard -DDGUX -D_DGUX_SOURCE -Di386 -mno-legend -O2"
 370       CXXFLAGS="-g -mstandard -DDGUX -D_DGUX_SOURCE -Di386 -mno-legend -O2"
 371     else
 372       CFLAGS="-DDGUX -D_DGUX_SOURCE -Di386 -mno-legend -O2"
 373       CXXFLAGS="-DDGUX -D_DGUX_SOURCE -Di386 -mno-legend -O2"
 374     fi
 375     AC_SUBST(CFLAGS)
 376     AC_SUBST(CXXFLAGS)
 377 fi
 378
 379 dnl As of 4.13a2, the collector will not properly work on Solaris when
 380 dnl built with gcc and -O.  So we remove -O in the appropriate case.
 381 dnl Not needed anymore on Solaris.
 382 AC_MSG_CHECKING(whether Solaris gcc optimization fix is necessary)
 383 case "$host" in
 384  *aix*)
 385     if test "$GCC" = yes; then
 386        AC_MSG_RESULT(yes)
 387        new_CFLAGS=
 388        for i in $CFLAGS; do
 389           case "$i" in
 390            -O*)
 391               ;;
 392            *)
 393               new_CFLAGS="$new_CFLAGS $i"
 394               ;;
 395           esac
 396        done
 397        CFLAGS="$new_CFLAGS"
 398     else
 399        AC_MSG_RESULT(no)
 400     fi
 401     ;;
 402  *) AC_MSG_RESULT(no) ;;
 403 esac
 404
 405 dnl We need to override the top-level CFLAGS.  This is how we do it.
 406 MY_CFLAGS="$CFLAGS"
 407 AC_SUBST(MY_CFLAGS)
 408
 409 dnl Include defines that have become de facto standard.
 410 dnl ALL_INTERIOR_POINTERS can be overridden in startup code.
 411 AC_DEFINE(SILENT,1,[disables statistics printing])
 412 AC_DEFINE(NO_SIGNALS,1,[does not disable signals])
 413 AC_DEFINE(ALL_INTERIOR_POINTERS,1,[allows all pointers to the interior of objects to be recognized])
 414
 415 dnl By default, make the library as general as possible.
 416 AC_DEFINE(JAVA_FINALIZATION,1,[make it somewhat safer to finalize objects out of order])
 417 AC_DEFINE(GC_GCJ_SUPPORT,1,[include support for gcj])
 418 AC_DEFINE(ATOMIC_UNCOLLECTABLE,1,[include code for GC_malloc_atomic_uncollectable])
 419
 420 dnl This is something of a hack.  When cross-compiling we turn off
 421 dnl some functionality. These is only correct when targetting an
 422 dnl embedded system.  FIXME.
 423 if test -n "${with_cross_host}"; then
 424    AC_DEFINE(NO_SIGSET,1,[use empty GC_disable_signals and GC_enable_signals])
 425    AC_DEFINE(NO_DEBUGGING,1,[removes GC_dump])
 426 fi
 427
 428 AC_ARG_ENABLE(gc-debug,
 429 [  --enable-gc-debug    include full support for pointer backtracing etc.],
 430 [ if test "$enable_gc_debug" = "yes"; then
 431     AC_MSG_WARN("Must define GC_DEBUG and use debug alloc. in clients.")
 432     AC_DEFINE(KEEP_BACK_PTRS,1,[Add code to save back pointers])
 433     AC_DEFINE(DBG_HDRS_ALL,1,[Make sure that all objects have debug headers])
 434     case $host in
 435       ia64-*-linux* )
 436         AC_DEFINE(MAKE_BACK_GRAPH,1,[Enable GC_PRINT_BACK_HEIGHT environment variable])
 437       ;;
 438       x86-*-linux* | i586-*-linux* | i686-*-linux* | x86_64-*-linux* )
 439         AC_DEFINE(MAKE_BACK_GRAPH,1)
 440         AC_MSG_WARN("Client must not use -fomit-frame-pointer.")
 441         AC_DEFINE(SAVE_CALL_COUNT, 8, [number of call frames saved with objects allocated through the debugging interface])
 442       ;;
 443       i[3456]86-*-dgux*)
 444         AC_DEFINE(MAKE_BACK_GRAPH,1)
 445       ;;
 446     esac
 447   fi])
 448
 449 if test "${gc_use_mmap}" = "yes"; then
 450   AC_DEFINE(USE_MMAP, 1, [use MMAP instead of sbrk to get new memory])
 451 fi
 452
 453 if test -n "$with_cross_host" &&
 454    test x"$with_cross_host" != x"no"; then
 455   toolexecdir='$(exec_prefix)/$(target_noncanonical)'
 456   toolexeclibdir='$(toolexecdir)/lib'
 457 else
 458   toolexecdir='$(libdir)/gcc-lib/$(target_noncanonical)'
 459   toolexeclibdir='$(libdir)'
 460 fi
 461 multi_os_directory=`$CC -print-multi-os-directory`
 462 case $multi_os_directory in
 463   .) ;; # Avoid trailing /.
 464   *) toolexeclibdir=$toolexeclibdir/$multi_os_directory ;;
 465 esac
 466 AC_SUBST(toolexecdir)
 467 AC_SUBST(toolexeclibdir)
 468
 469 if test "${multilib}" = "yes"; then
 470   multilib_arg="--enable-multilib"
 471 else
 472   multilib_arg=
 473 fi
 474
 475 AC_CONFIG_HEADERS([include/gc_config.h include/gc_ext_config.h])
 476
 477 AC_CONFIG_FILES(Makefile include/Makefile)
 478 AC_OUTPUT