boehm-gc/configure.in

   1 dnl Process this file with autoconf to produce configure.
   2
   3 AC_INIT(gc_mark.h)
   4
   5 dnl Can't be done in BOEHM_CONFIGURE because that confuses automake.
   6 AC_CONFIG_AUX_DIR(..)
   7
   8 AC_CANONICAL_SYSTEM
   9
  10 BOEHM_CONFIGURE(.)
  11
  12 AM_PROG_LIBTOOL
  13
  14 dnl We use these options to decide which functions to include.
  15 AC_ARG_WITH(target-subdir,
  16 [  --with-target-subdir=SUBDIR
  17                           configuring with a cross compiler])
  18 AC_ARG_WITH(cross-host,
  19 [  --with-cross-host=HOST  configuring with a cross compiler])
  20
  21 AM_MAINTAINER_MODE
  22 # automake wants to see AC_EXEEXT.  But we don't need it.  And having
  23 # it is actually a problem, because the compiler we're passed can't
  24 # necessarily do a full link.  So we fool automake here.
  25 if test "x" = "y"; then
  26    AC_EXEEXT
  27 fi
  28
  29 AC_MSG_CHECKING([for threads package to use])
  30 AC_ARG_ENABLE(threads, [  --enable-threads=TYPE   choose threading package],
  31   THREADS=$enableval,
  32   dnl FIXME: figure out native threads to use here.
  33   THREADS=no)
  34
  35 if test "$THREADS" = yes; then
  36    case "$host" in
  37     *-*-vxworks*)
  38        THREADS=vxworks
  39        ;;
  40     *-*-linux*)
  41        # FIXME: this isn't correct in all cases.
  42        THREADS=posix
  43        ;;
  44     *-*-win*)
  45        THREADS=win32
  46        ;;
  47     *-*-irix[[1-5]].*)
  48        # No built-in threads library on IRIX 5.* and older.
  49        THREADS=none
  50        ;;
  51     *-*-irix*)
  52        # FIXME: for now, choose POSIX, because we implement that.
  53        # Later, choose irix threads.
  54        THREADS=posix
  55        ;;
  56     *-*-solaris*)
  57        # FIXME: for now, choose POSIX, because we implement that.
  58        # Later, choose solaris threads.
  59        THREADS=posix
  60        ;;
  61     *)
  62        # For now.
  63        THREADS=none
  64        ;;
  65    esac
  66 fi
  67
  68 INCLUDES=
  69 THREADLIB=
  70 case "$THREADS" in
  71  no | none | single)
  72     THREADS=none
  73     ;;
  74  posix | pthreads)
  75     THREADS=posix
  76     case "$host" in
  77      *-*-linux*)
  78         AC_DEFINE(LINUX_THREADS)
  79         AC_DEFINE(_REENTRANT)
  80         ;;
  81      *-*-solaris*)
  82         AC_DEFINE(SOLARIS_THREADS)
  83         AC_DEFINE(_SOLARIS_PTHREADS)
  84         ;;
  85      *-*-irix*)
  86         AC_DEFINE(IRIX_THREADS)
  87         ;;
  88     esac
  89     THREADLIB=-lpthread
  90     ;;
  91  decosf1 | irix | mach | os2 | solaris | win32 | dce | vxworks)
  92     AC_MSG_ERROR(thread package $THREADS not yet supported)
  93     ;;
  94  *)
  95     AC_MSG_ERROR($THREADS is an unknown thread package)
  96     ;;
  97 esac
  98 AC_MSG_RESULT($THREADS)
  99 AC_SUBST(THREADLIB)
 100
 101 AC_ARG_ENABLE(java-gc,
 102 changequote(<<,>>)dnl
 103 <<  --enable-java-gc=TYPE   choose garbage collector [boehm]>>,
 104 changequote([,])
 105   GC=$enableval,
 106   GC=boehm)
 107 target_all=
 108 if test "$GC" = "boehm"; then
 109    target_all=libgcjgc.la
 110 fi
 111 AC_SUBST(target_all)
 112
 113 dnl If the target is an eCos system, use the appropriate eCos
 114 dnl I/O routines.
 115 dnl FIXME: this should not be a local option but a global target
 116 dnl system; at present there is no eCos target.
 117 TARGET_ECOS="no"
 118 AC_ARG_WITH(ecos,
 119 [  --with-ecos             enable runtime eCos target support],
 120 TARGET_ECOS="$with_ecos"
 121 )
 122
 123 addobjs=
 124 CXXINCLUDES=
 125 case "$TARGET_ECOS" in
 126    no)
 127       ;;
 128    *)
 129       AC_DEFINE(ECOS)
 130       CXXINCLUDES="-I${TARGET_ECOS}/include"
 131       addobjs="$addobjs ecos.lo"
 132       ;;
 133 esac
 134 AC_SUBST(CXX)
 135
 136 AC_SUBST(INCLUDES)
 137 AC_SUBST(CXXINCLUDES)
 138
 139 machdep=
 140 case "$host" in
 141 # alpha_mach_dep.s assumes that pointers are not saved in fp registers.
 142 # Gcc on a 21264 can spill pointers to fp registers.  Oops.
 143 # alpha*-*-*)
 144 #    machdep="alpha_mach_dep.lo"
 145 #    ;;
 146  mipstx39-*-elf*)
 147     machdep="mips_ultrix_mach_dep.lo"
 148     AC_DEFINE(STACKBASE, __stackbase)
 149     AC_DEFINE(DATASTART_IS_ETEXT)
 150     ;;
 151  mips-dec-ultrix*)
 152     machdep="mips_ultrix_mach-dep.lo"
 153     ;;
 154  mips-*-*)
 155     machdep="mips_sgi_mach_dep.lo"
 156     AC_DEFINE(NO_EXECUTE_PERMISSION)
 157     ;;
 158  sparc-sun-solaris2.3*)
 159     AC_DEFINE(SUNOS53_SHARED_LIB)
 160     ;;
 161 esac
 162 if test x"$machdep" = x; then
 163    machdep="mach_dep.lo"
 164 fi
 165 addobjs="$addobjs $machdep"
 166 AC_SUBST(addobjs)
 167
 168 dnl As of 4.13a2, the collector will not properly work on Solaris when
 169 dnl built with gcc and -O.  So we remove -O in the appropriate case.
 170 case "$host" in
 171  sparc-sun-solaris2*)
 172     if test "$GCC" = yes; then
 173        new_CFLAGS=
 174        for i in $CFLAGS; do
 175           case "$i" in
 176            -O*)
 177               ;;
 178            *)
 179               new_CFLAGS="$new_CFLAGS $i"
 180               ;;
 181           esac
 182        done
 183        CFLAGS="$new_CFLAGS"
 184     fi
 185     ;;
 186 esac
 187
 188 dnl We need to override the top-level CFLAGS.  This is how we do it.
 189 MY_CFLAGS="$CFLAGS"
 190 AC_SUBST(MY_CFLAGS)
 191
 192 dnl Define a few things to retarget the library towards
 193 dnl embedded Java.
 194 AC_DEFINE(SILENT)
 195 AC_DEFINE(NO_SIGNALS)
 196 AC_DEFINE(NO_DEBUGGING)
 197 AC_DEFINE(JAVA_FINALIZATION)
 198
 199 dnl This is something of a hack.  When cross-compiling we turn off
 200 dnl some functionality.  We also enable the "small" configuration.
 201 dnl These is only correct when targetting an embedded system.  FIXME.
 202 if test -n "${with_cross_host}"; then
 203    AC_DEFINE(NO_SIGSET)
 204    AC_DEFINE(NO_CLOCK)
 205    AC_DEFINE(SMALL_CONFIG)
 206 fi
 207
 208 AM_CONDITIONAL(USE_LIBDIR, test -z "$with_cross_host")
 209
 210 if test "${multilib}" = "yes"; then
 211   multilib_arg="--enable-multilib"
 212 else
 213   multilib_arg=
 214 fi
 215
 216 AC_OUTPUT(Makefile,
 217 [
 218 dnl Put all the -D options in a file.  These are required before
 219 dnl boehm-config.h can be included.  This is a huge hack brought
 220 dnl about by overall poor structuring of this entire library.
 221 echo "$DEFS" > boehm-cflags
 222
 223 if test -n "$CONFIG_FILES"; then
 224   ac_file=Makefile . ${boehm_gc_basedir}/../config-ml.in
 225 fi],
 226 srcdir=${srcdir}
 227 host=${host}
 228 target=${target}
 229 with_multisubdir=${with_multisubdir}
 230 ac_configure_args="${multilib_arg} ${ac_configure_args}"
 231 CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
 232 boehm_gc_basedir=${boehm_gc_basedir}
 233 CC="${CC}"
 234 DEFS="$DEFS"
 235 )