mirror of
git://gcc.gnu.org/git/gcc.git
synced 2024-12-24 05:38:52 +08:00
77de5d85d0
* ltdl.c: If HAVE_BOEHM_GC defined, includ gc.h. * Makefile.in: Rebuilt. * Makefile.am (INCLUDES): New macro. * config.h.in, configure: Rebuilt. * acconfig.h (HAVE_BOEHM_GC): Define. * configure.in: Handle --enable-java-gc. From-SVN: r31971
390 lines
10 KiB
Plaintext
390 lines
10 KiB
Plaintext
dnl Process this file with autoconf to create configure.
|
|
|
|
AC_INIT(ltdl.c)
|
|
|
|
if test -z "$enable_ltdl_install$enable_ltdl_convenience"; then
|
|
if test -f ${srcdir}/ltconfig && test -f ${srcdir}/ltmain.sh; then
|
|
# if libltdl is libtoolized, it is assumed to be stand-alone and
|
|
# installed unless the command line overrides it (tested above)
|
|
enable_ltdl_install=yes
|
|
else
|
|
AC_MSG_WARN([*** The top-level configure must select either])
|
|
AC_MSG_WARN([*** [A""C_LIBLTDL_INSTALLABLE] or [A""C_LIBLTDL_CONVENIENCE].])
|
|
AC_MSG_ERROR([*** Maybe you want to --enable-ltdl-install?])
|
|
fi
|
|
fi
|
|
|
|
AM_INIT_AUTOMAKE(libltdl,1.0,-)
|
|
AM_CONFIG_HEADER(config.h)
|
|
AM_MAINTAINER_MODE
|
|
|
|
AC_PROG_CC
|
|
AC_C_CONST
|
|
AC_C_INLINE
|
|
AM_PROG_LIBTOOL
|
|
AC_SUBST(LIBTOOL_DEPS)
|
|
|
|
AC_ARG_ENABLE(ltdl-install,
|
|
[ --enable-ltdl-install install libltdl])
|
|
|
|
AC_MSG_CHECKING([for garbage collector to use])
|
|
AC_ARG_ENABLE(java-gc,
|
|
changequote(<<,>>)dnl
|
|
<< --enable-java-gc=TYPE choose garbage collector [boehm]>>,
|
|
changequote([,])
|
|
GC=$enableval,
|
|
GC=boehm)
|
|
|
|
GCINCS=
|
|
if test "$GC" = "boehm"; then
|
|
GCINCS='-I$(top_srcdir)/../../boehm-gc -I$(top_builddir)/../../boehm-gc'
|
|
GCINCS="$GCINCS `cat ../../boehm-gc/boehm-cflags`"
|
|
AC_DEFINE(HAVE_BOEHM_GC)
|
|
fi
|
|
AC_SUBST(GCINCS)
|
|
|
|
AM_CONDITIONAL(INSTALL_LTDL, test x"${enable_ltdl_install-no}" != xno)
|
|
AM_CONDITIONAL(CONVENIENCE_LTDL, test x"${enable_ltdl_convenience-no}" != xno)
|
|
|
|
dnl Read the libtool configuration
|
|
rm -f conftest
|
|
./libtool --config > conftest
|
|
. ./conftest
|
|
rm -f conftest
|
|
|
|
AC_CACHE_CHECK([which extension is used for shared libraries],
|
|
libltdl_cv_shlibext, [dnl
|
|
(
|
|
last=
|
|
for spec in $library_names_spec; do
|
|
last="$spec"
|
|
done
|
|
changequote(, )
|
|
echo "$last" | sed 's/\[.*\]//;s/^[^.]*//;s/\$.*$//;s/\.$//' > conftest
|
|
changequote([, ])
|
|
)
|
|
libltdl_cv_shlibext=`cat conftest`
|
|
rm -f conftest
|
|
])
|
|
if test -n "$libltdl_cv_shlibext"; then
|
|
AC_DEFINE_UNQUOTED(LTDL_SHLIB_EXT, "$libltdl_cv_shlibext",
|
|
[Define to the extension used for shared libraries, say, ".so". ])
|
|
fi
|
|
|
|
AC_CACHE_CHECK([which variable specifies run-time library path],
|
|
libltdl_cv_shlibpath_var, [libltdl_cv_shlibpath_var="$shlibpath_var"])
|
|
if test -n "$libltdl_cv_shlibpath_var"; then
|
|
AC_DEFINE_UNQUOTED(LTDL_SHLIBPATH_VAR, "$libltdl_cv_shlibpath_var",
|
|
[Define to the name of the environment variable that determines the dynamic library search path. ])
|
|
fi
|
|
|
|
AC_CACHE_CHECK([for objdir],
|
|
libltdl_cv_objdir, [libltdl_cv_objdir="$objdir"])
|
|
test -z "$libltdl_cv_objdir" && libltdl_cv_objdir=".libs"
|
|
AC_DEFINE_UNQUOTED(LTDL_OBJDIR, "$libltdl_cv_objdir/",
|
|
[Define to the sub-directory in which libtool stores uninstalled libraries. ])
|
|
|
|
AC_HEADER_STDC
|
|
AC_CHECK_HEADERS(malloc.h memory.h stdlib.h stdio.h ctype.h dlfcn.h dl.h dld.h)
|
|
AC_CHECK_HEADERS(string.h strings.h, break)
|
|
AC_CHECK_FUNCS(strchr index, break)
|
|
AC_CHECK_FUNCS(strrchr rindex, break)
|
|
|
|
AC_CACHE_CHECK([whether libtool supports -dlopen/-dlpreopen],
|
|
libltdl_cv_preloaded_symbols, [dnl
|
|
if test -n "$global_symbol_pipe"; then
|
|
libltdl_cv_preloaded_symbols=yes
|
|
else
|
|
libltdl_cv_preloaded_symbols=no
|
|
fi
|
|
])
|
|
if test x"$libltdl_cv_preloaded_symbols" = x"yes"; then
|
|
AC_DEFINE(HAVE_PRELOADED_SYMBOLS, 1,
|
|
[Define if libtool can extract symbol lists from object files. ])
|
|
fi
|
|
|
|
LIBADD_DL=
|
|
AC_CHECK_LIB(dl, dlopen, [AC_DEFINE(HAVE_LIBDL, 1) LIBADD_DL="-ldl"],
|
|
[AC_CHECK_FUNC(dlopen, [AC_DEFINE(HAVE_LIBDL, 1)])])
|
|
AC_CHECK_FUNC(shl_load, [AC_DEFINE(HAVE_SHL_LOAD, 1)],
|
|
[AC_CHECK_LIB(dld, shl_load, [AC_DEFINE(HAVE_SHL_LOAD, 1) LIBADD_DL="$LIBADD_DL -ldld"])])
|
|
AC_CHECK_LIB(dld, dld_link, [AC_DEFINE(HAVE_DLD, 1)dnl
|
|
test "x$ac_cv_lib_dld_shl_load" = yes || LIBADD_DL="$LIBADD_DL -ldld"])
|
|
AC_SUBST(LIBADD_DL)
|
|
|
|
if test "x$ac_cv_func_dlopen" = xyes || test "x$ac_cv_lib_dl_dlopen" = xyes; then
|
|
LIBS_SAVE="$LIBS"
|
|
LIBS="$LIBS $LIBADD_DL"
|
|
AC_CHECK_FUNCS(dlerror)
|
|
LIBS="$LIBS_SAVE"
|
|
fi
|
|
|
|
dnl Check for command to grab the raw symbol name followed
|
|
dnl by C symbol name from nm.
|
|
AC_REQUIRE([AC_CANONICAL_HOST])dnl
|
|
AC_REQUIRE([AC_PROG_NM])dnl
|
|
# Check for command to grab the raw symbol name followed by C symbol from nm.
|
|
AC_MSG_CHECKING([command to parse $NM output])
|
|
AC_CACHE_VAL(ac_cv_sys_global_symbol_pipe,
|
|
[# These are sane defaults that work on at least a few old systems.
|
|
# {They come from Ultrix. What could be older than Ultrix?!! ;)}
|
|
|
|
changequote(,)dnl
|
|
# Character class describing NM global symbol codes.
|
|
ac_symcode='[BCDEGRST]'
|
|
|
|
# Regexp to match symbols that can be accessed directly from C.
|
|
ac_sympat='\([_A-Za-z][_A-Za-z0-9]*\)'
|
|
|
|
# Transform the above into a raw symbol and a C symbol.
|
|
ac_symxfrm='\1 \2\3 \3'
|
|
|
|
# Transform an extracted symbol line into a proper C declaration
|
|
ac_global_symbol_to_cdecl="sed -n -e 's/^. .* \(.*\)$/extern char \1;/p'"
|
|
|
|
# Define system-specific variables.
|
|
case "$host_os" in
|
|
aix*)
|
|
ac_symcode='[BCDT]'
|
|
;;
|
|
cygwin* | mingw*)
|
|
ac_symcode='[ABCDGISTW]'
|
|
;;
|
|
hpux*)
|
|
ac_global_symbol_to_cdecl="sed -n -e 's/^T .* \(.*\)$/extern char \1();/p' -e 's/^. .* \(.*\)$/extern char \1;/p'"
|
|
;;
|
|
irix*)
|
|
ac_symcode='[BCDEGRST]'
|
|
;;
|
|
solaris*)
|
|
ac_symcode='[BDT]'
|
|
;;
|
|
esac
|
|
|
|
# If we're using GNU nm, then use its standard symbol codes.
|
|
if $NM -V 2>&1 | egrep '(GNU|with BFD)' > /dev/null; then
|
|
ac_symcode='[ABCDGISTW]'
|
|
fi
|
|
changequote([,])dnl
|
|
|
|
# Try without a prefix undercore, then with it.
|
|
for ac_symprfx in "" "_"; do
|
|
|
|
ac_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[ ]\($ac_symcode\)[ ][ ]*\($ac_symprfx\)$ac_sympat$/$ac_symxfrm/p'"
|
|
|
|
# Check to see that the pipe works correctly.
|
|
ac_pipe_works=no
|
|
rm -f conftest.$ac_ext
|
|
cat > conftest.$ac_ext <<EOF
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
char nm_test_var;
|
|
void nm_test_func(){}
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
int main(){nm_test_var='a';nm_test_func;return 0;}
|
|
EOF
|
|
|
|
if AC_TRY_EVAL(ac_compile); then
|
|
# Now try to grab the symbols.
|
|
ac_nlist=conftest.nm
|
|
|
|
if AC_TRY_EVAL(NM conftest.$ac_objext \| $ac_cv_sys_global_symbol_pipe \> $ac_nlist) && test -s "$ac_nlist"; then
|
|
|
|
# Try sorting and uniquifying the output.
|
|
if sort "$ac_nlist" | uniq > "$ac_nlist"T; then
|
|
mv -f "$ac_nlist"T "$ac_nlist"
|
|
else
|
|
rm -f "$ac_nlist"T
|
|
fi
|
|
|
|
# Make sure that we snagged all the symbols we need.
|
|
if egrep ' nm_test_var$' "$ac_nlist" >/dev/null; then
|
|
if egrep ' nm_test_func$' "$ac_nlist" >/dev/null; then
|
|
cat <<EOF > conftest.c
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
EOF
|
|
# Now generate the symbol file.
|
|
eval "$ac_global_symbol_to_cdecl"' < "$ac_nlist" >> conftest.c'
|
|
|
|
cat <<EOF >> conftest.c
|
|
#if defined (__STDC__) && __STDC__
|
|
# define lt_ptr_t void *
|
|
#else
|
|
# define lt_ptr_t char *
|
|
# define const
|
|
#endif
|
|
|
|
/* The mapping between symbol names and symbols. */
|
|
const struct {
|
|
const char *name;
|
|
lt_ptr_t address;
|
|
}
|
|
changequote(,)dnl
|
|
lt_preloaded_symbols[] =
|
|
changequote([,])dnl
|
|
{
|
|
EOF
|
|
sed 's/^. \(.*\) \(.*\)$/ {"\2", (lt_ptr_t) \&\2},/' < "$ac_nlist" >> conftest.c
|
|
cat <<\EOF >> conftest.c
|
|
{0, (lt_ptr_t) 0}
|
|
};
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
EOF
|
|
# Now try linking the two files.
|
|
mv conftest.$ac_objext conftstm.$ac_objext
|
|
ac_save_LIBS="$LIBS"
|
|
ac_save_CFLAGS="$CFLAGS"
|
|
LIBS="conftstm.$ac_objext"
|
|
CFLAGS="$CFLAGS$no_builtin_flag"
|
|
if AC_TRY_EVAL(ac_link) && test -s conftest; then
|
|
ac_pipe_works=yes
|
|
else
|
|
echo "configure: failed program was:" >&AC_FD_CC
|
|
cat conftest.c >&AC_FD_CC
|
|
fi
|
|
LIBS="$ac_save_LIBS"
|
|
CFLAGS="$ac_save_CFLAGS"
|
|
else
|
|
echo "cannot find nm_test_func in $ac_nlist" >&AC_FD_CC
|
|
fi
|
|
else
|
|
echo "cannot find nm_test_var in $ac_nlist" >&AC_FD_CC
|
|
fi
|
|
else
|
|
echo "cannot run $ac_cv_sys_global_symbol_pipe" >&AC_FD_CC
|
|
fi
|
|
else
|
|
echo "$progname: failed program was:" >&AC_FD_CC
|
|
cat conftest.c >&AC_FD_CC
|
|
fi
|
|
rm -rf conftest* conftst*
|
|
|
|
# Do not use the global_symbol_pipe unless it works.
|
|
if test "$ac_pipe_works" = yes; then
|
|
if test x"$ac_symprfx" = x"_"; then
|
|
ac_cv_sys_symbol_underscore=yes
|
|
else
|
|
ac_cv_sys_symbol_underscore=no
|
|
fi
|
|
break
|
|
else
|
|
ac_cv_sys_global_symbol_pipe=
|
|
fi
|
|
done
|
|
])
|
|
|
|
ac_result=yes
|
|
if test -z "$ac_cv_sys_global_symbol_pipe"; then
|
|
ac_result=no
|
|
fi
|
|
AC_MSG_RESULT($ac_result)
|
|
|
|
dnl does the compiler prefix global symbols with an underscore?
|
|
AC_MSG_CHECKING([for _ prefix in compiled symbols])
|
|
AC_CACHE_VAL(ac_cv_sys_symbol_underscore,
|
|
[ac_cv_sys_symbol_underscore=no
|
|
cat > conftest.$ac_ext <<EOF
|
|
void nm_test_func(){}
|
|
int main(){nm_test_func;return 0;}
|
|
EOF
|
|
if AC_TRY_EVAL(ac_compile); then
|
|
# Now try to grab the symbols.
|
|
ac_nlist=conftest.nm
|
|
if AC_TRY_EVAL(NM conftest.$ac_objext \| $ac_cv_sys_global_symbol_pipe \> $ac_nlist) && test -s "$ac_nlist"; then
|
|
# See whether the symbols have a leading underscore.
|
|
if egrep '^. _nm_test_func' "$ac_nlist" >/dev/null; then
|
|
ac_cv_sys_symbol_underscore=yes
|
|
else
|
|
if egrep '^. nm_test_func ' "$ac_nlist" >/dev/null; then
|
|
:
|
|
else
|
|
echo "configure: cannot find nm_test_func in $ac_nlist" >&AC_FD_CC
|
|
fi
|
|
fi
|
|
else
|
|
echo "configure: cannot run $ac_cv_sys_global_symbol_pipe" >&AC_FD_CC
|
|
fi
|
|
else
|
|
echo "configure: failed program was:" >&AC_FD_CC
|
|
cat conftest.c >&AC_FD_CC
|
|
fi
|
|
rm -rf conftest*
|
|
])
|
|
AC_MSG_RESULT($ac_cv_sys_symbol_underscore)
|
|
|
|
if test x"$ac_cv_sys_symbol_underscore" = xyes; then
|
|
if test x"$ac_cv_func_dlopen" = xyes ||
|
|
test x"$ac_cv_lib_dl_dlopen" = xyes ; then
|
|
AC_CACHE_CHECK([whether we have to add an underscore for dlsym],
|
|
libltdl_cv_need_uscore, [dnl
|
|
AC_TRY_RUN([
|
|
#if HAVE_DLFCN_H
|
|
#include <dlfcn.h>
|
|
#endif
|
|
|
|
#include <stdio.h>
|
|
|
|
#ifdef RTLD_GLOBAL
|
|
# define LTDL_GLOBAL RTLD_GLOBAL
|
|
#else
|
|
# ifdef DL_GLOBAL
|
|
# define LTDL_GLOBAL DL_GLOBAL
|
|
# else
|
|
# define LTDL_GLOBAL 0
|
|
# endif
|
|
#endif
|
|
|
|
/* We may have to define LTDL_LAZY_OR_NOW in the command line if we
|
|
find out it does not work in some platform. */
|
|
#ifndef LTDL_LAZY_OR_NOW
|
|
# ifdef RTLD_LAZY
|
|
# define LTDL_LAZY_OR_NOW RTLD_LAZY
|
|
# else
|
|
# ifdef DL_LAZY
|
|
# define LTDL_LAZY_OR_NOW DL_LAZY
|
|
# else
|
|
# ifdef RTLD_NOW
|
|
# define LTDL_LAZY_OR_NOW RTLD_NOW
|
|
# else
|
|
# ifdef DL_NOW
|
|
# define LTDL_LAZY_OR_NOW DL_NOW
|
|
# else
|
|
# define LTDL_LAZY_OR_NOW 0
|
|
# endif
|
|
# endif
|
|
# endif
|
|
# endif
|
|
#endif
|
|
|
|
fnord() { int i=42;}
|
|
main() { void *self, *ptr1, *ptr2; self=dlopen(0,LTDL_GLOBAL|LTDL_LAZY_OR_NOW);
|
|
if(self) { ptr1=dlsym(self,"fnord"); ptr2=dlsym(self,"_fnord");
|
|
if(ptr1 && !ptr2) { dlclose(self); exit(0); } } exit(1); }
|
|
], libltdl_cv_need_uscore=no, libltdl_cv_need_uscore=yes,
|
|
libltdl_cv_need_uscore=cross
|
|
)])
|
|
fi
|
|
fi
|
|
|
|
if test x"$libltdl_cv_need_uscore" = xyes; then
|
|
AC_DEFINE(NEED_USCORE, 1,
|
|
[Define if dlsym() requires a leading underscode in symbol names. ])
|
|
fi
|
|
|
|
dnl Output the makefile
|
|
AC_OUTPUT(Makefile)
|
|
|
|
# Local Variables:
|
|
# mode:shell-script
|
|
# sh-indentation:2
|
|
# End:
|