libvtv/configure.ac

   1 # -*- Autoconf -*-
   2 # Process this file with autoconf to produce a configure script.
   3
   4 AC_PREREQ([2.64])
   5 AC_INIT([GNU Vtable Verification Runtime Library], 1.0,,[libvtv])
   6 #AC_INIT(package-unused, version-unused, libvtv)
   7 AC_CONFIG_SRCDIR([vtv_rts.h])
   8
   9 AM_ENABLE_MULTILIB(, ..)
  10
  11 # -------
  12 # Options
  13 # -------
  14 AC_MSG_CHECKING([for --enable-version-specific-runtime-libs])
  15 AC_ARG_ENABLE(version-specific-runtime-libs,
  16 [  --enable-version-specific-runtime-libs    Specify that runtime libraries should be installed in a compiler-specific directory ],
  17 [case "$enableval" in
  18  yes) version_specific_libs=yes ;;
  19  no)  version_specific_libs=no ;;
  20  *)   AC_MSG_ERROR([Unknown argument to enable/disable version-specific libs]);;
  21  esac],
  22 [version_specific_libs=no])
  23 AC_MSG_RESULT($version_specific_libs)
  24
  25 # Do not delete or change the following two lines.  For why, see
  26 # http://gcc.gnu.org/ml/libstdc++/2003-07/msg00451.html
  27 AC_CANONICAL_SYSTEM
  28 target_alias=${target_alias-$host_alias}
  29 AC_SUBST(target_alias)
  30 GCC_LIBSTDCXX_RAW_CXX_FLAGS
  31
  32 AC_USE_SYSTEM_EXTENSIONS
  33
  34 # Use same top-level configure hooks in libgcc/libstdc++/libvtv.
  35 AC_MSG_CHECKING([for --enable-vtable-verify])
  36 AC_ARG_ENABLE(vtable-verify,
  37 [  --enable-vtable-verify    Enable vtable verification feature ],
  38 [case "$enableval" in
  39  yes) enable_vtable_verify=yes ;;
  40  no)  enable_vtable_verify=no ;;
  41  *)   enable_vtable_verify=no;;
  42  esac],
  43 [enable_vtable_verify=no])
  44 AC_MSG_RESULT($enable_vtable_verify)
  45
  46 # See if supported.
  47 unset VTV_SUPPORTED
  48 AC_MSG_CHECKING([for host support for vtable verification])
  49 . ${srcdir}/configure.tgt
  50 case ${host} in
  51   *-*-solaris2*)
  52     # libvtv requires init priority support, which depends on the linker
  53     # used on Solaris.
  54     AC_CACHE_CHECK(for init priority support, libvtv_cv_init_priority, [
  55     AC_COMPILE_IFELSE([AC_LANG_PROGRAM(,
  56       [[void ip (void) __attribute__ ((constructor (1)));]])],
  57       [libgcc_cv_init_priority=yes],[libgcc_cv_init_priority=no])])
  58     if test x$libvtv_cv_init_priority = xno; then
  59       VTV_SUPPORTED=no
  60     fi
  61     # FIXME: Maybe check for dl_iterate_phdr, too?  Should be covered by
  62     # configure.tgt restricting to libvtv to Solaris 11+.
  63     ;;
  64 esac
  65 AC_MSG_RESULT($VTV_SUPPORTED)
  66
  67 # Decide if it's usable.
  68 use_vtable_verify=no
  69 if test "x$VTV_SUPPORTED" = "xyes"; then
  70   if test "x$enable_vtable_verify" = "xyes"; then
  71     use_vtable_verify=yes
  72     AC_MSG_NOTICE(using vtable verification)
  73   fi
  74 fi
  75 AM_CONDITIONAL(ENABLE_VTABLE_VERIFY, test $use_vtable_verify = yes)
  76
  77 AM_INIT_AUTOMAKE(foreign no-dist)
  78 AM_MAINTAINER_MODE
  79
  80 LIBVTV_CONFIGURE
  81
  82 # Calculate toolexeclibdir
  83 # Also toolexecdir, though it's only used in toolexeclibdir
  84 case ${version_specific_libs} in
  85   yes)
  86     # Need the gcc compiler version to know where to install libraries
  87     # and header files if --enable-version-specific-runtime-libs option
  88     # is selected.
  89     toolexecdir='$(libdir)/gcc/$(target_alias)'
  90     toolexeclibdir='$(toolexecdir)/$(gcc_version)$(MULTISUBDIR)'
  91     ;;
  92   no)
  93     if test -n "$with_cross_host" &&
  94        test x"$with_cross_host" != x"no"; then
  95       # Install a library built with a cross compiler in tooldir, not libdir.
  96       toolexecdir='$(exec_prefix)/$(target_alias)'
  97       toolexeclibdir='$(toolexecdir)/lib'
  98     else
  99       toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
 100       toolexeclibdir='$(libdir)'
 101     fi
 102     multi_os_directory=`$CC -print-multi-os-directory`
 103     case $multi_os_directory in
 104       .) ;; # Avoid trailing /.
 105       *) toolexeclibdir=$toolexeclibdir/$multi_os_directory ;;
 106     esac
 107     ;;
 108 esac
 109 AC_SUBST(toolexecdir)
 110 AC_SUBST(toolexeclibdir)
 111
 112 AC_GNU_SOURCE
 113 AC_CHECK_FUNCS([__secure_getenv])
 114
 115 AC_GNU_SOURCE
 116 AC_CHECK_FUNCS([secure_getenv])
 117
 118 AC_CHECK_FUNCS([getexecname __fortify_fail])
 119
 120 # Check for programs.
 121 m4_rename([_AC_ARG_VAR_PRECIOUS],[real_PRECIOUS])
 122 m4_define([_AC_ARG_VAR_PRECIOUS],[])
 123 AC_PROG_CC
 124 AC_PROG_CXX
 125 m4_rename_force([real_PRECIOUS],[_AC_ARG_VAR_PRECIOUS])
 126
 127 AM_PROG_CC_C_O
 128
 129 AC_SUBST(CFLAGS)
 130 AC_SUBST(CXXFLAGS)
 131
 132 # Newer automakes demand CCAS and CCASFLAGS.
 133 : ${CCAS='$(CC)'}
 134 : ${CCASFLAGS='$(CFLAGS)'}
 135 AC_SUBST(CCAS)
 136 AC_SUBST(CCASFLAGS)
 137
 138 AC_CHECK_TOOL(AS, as)
 139 AC_CHECK_TOOL(AR, ar)
 140 AC_CHECK_TOOL(RANLIB, ranlib, :)
 141
 142 # Configure libtool
 143 AC_LIBTOOL_DLOPEN
 144 AM_PROG_LIBTOOL
 145 ACX_LT_HOST_FLAGS
 146 AC_SUBST(enable_shared)
 147 AC_SUBST(enable_static)
 148
 149 # For libtool versioning info, format is CURRENT:REVISION:AGE
 150 libtool_VERSION=1:0:0
 151 AC_SUBST(libtool_VERSION)
 152
 153 XCFLAGS="-D_GNU_SOURCE -Wall -Wextra -fno-exceptions"
 154 AC_SUBST(XCFLAGS)
 155
 156 if test "${multilib}" = "yes"; then
 157   multilib_arg="--enable-multilib"
 158 else
 159   multilib_arg=
 160 fi
 161
 162 AC_CONFIG_FILES([Makefile])
 163
 164 if test "x$VTV_SUPPORTED" = "xyes"; then
 165   AC_CONFIG_FILES(AC_FOREACH([DIR], [testsuite], [DIR/Makefile ]),
 166     [cat > vpsed$$ << \_EOF
 167 s!`test -f '$<' || echo '$(srcdir)/'`!!
 168 _EOF
 169     sed -f vpsed$$ $ac_file > tmp$$
 170     mv tmp$$ $ac_file
 171     rm vpsed$$
 172     echo 'MULTISUBDIR =' >> $ac_file
 173     ml_norecursion=yes
 174     . ${multi_basedir}/config-ml.in
 175     AS_UNSET([ml_norecursion])
 176 ])
 177 fi
 178
 179 case "$target_os" in
 180   cygwin*|mingw32*)
 181     vtv_cygmin="yes"
 182     ;;
 183   *)
 184     vtv_cygmin="no"
 185     ;;
 186 esac
 187
 188 AM_CONDITIONAL(VTV_CYGMIN, test $vtv_cygmin = yes)
 189
 190 AC_CHECK_FUNCS([_obstack_begin])
 191 AM_CONDITIONAL(VTV_NO_OBSTACK, test $ac_cv_func__obstack_begin = no)
 192
 193 # Determine what GCC version number to use in filesystem paths.
 194 GCC_BASE_VER
 195
 196 AC_OUTPUT