+1999-01-11 Alexandre Oliva <oliva@dcc.unicamp.br>
+
+ * libtool.m4 (AM_SYS_NM_PARSE): need for underscore prefix is now
+ auto-detected, by trying first without, then with it
+ * ltconfig.in: ditto
+
1999-01-10 Alexandre Oliva <oliva@dcc.unicamp.br>
* configure.in (AC_CONFIG_SUBDIRS): add libltdl, demo, mdemo and
## configuration script generated by Autoconf, you may include it under
## the same distribution terms that you use for the rest of that program.
-# serial 29 AM_PROG_LIBTOOL
+# serial 30 AM_PROG_LIBTOOL
AC_DEFUN(AM_PROG_LIBTOOL,
[AC_PREREQ(2.12.2)dnl
AC_REQUIRE([AM_ENABLE_SHARED])dnl
aix*)
ac_symcode='[BCDTU]'
;;
-sunos* | cygwin32* | mingw32*)
- ac_sympat='_\([_A-Za-z][_A-Za-z0-9]*\)'
- ac_symxfrm='_\1 \1'
- ;;
irix*)
# Cannot use undefined symbols on IRIX because inlined functions mess us up.
ac_symcode='[BCDEGRST]'
esac
changequote([,])dnl
-# Write the raw and C identifiers.
-ac_cv_sys_global_symbol_pipe="sed -n -e 's/^.* $ac_symcode $ac_sympat$/$ac_symxfrm/p'"
+# Try without a prefix undercore, then with it.
+for ac_symprfx in "" "_"; do
-# Check to see that the pipe works correctly.
-ac_pipe_works=no
-cat > conftest.$ac_ext <<EOF
+ # Write the raw and C identifiers.
+ 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
+ cat > conftest.$ac_ext <<EOF
#ifdef __cplusplus
extern "C" {
#endif
#endif
int main(){nm_test_var='a';nm_test_func;return 0;}
EOF
-if AC_TRY_EVAL(ac_compile); then
- # Now try to grab the symbols.
- ac_nlist=conftest.nm
- if AC_TRY_EVAL(NM conftest.$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"
- ac_wcout=`wc "$ac_nlist" 2>/dev/null`
+ if AC_TRY_EVAL(ac_compile); then
+ # Now try to grab the symbols.
+ ac_nlist=conftest.nm
+
+ if AC_TRY_EVAL(NM conftest.$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"
+ ac_wcout=`wc "$ac_nlist" 2>/dev/null`
changequote(,)dnl
- ac_count=`echo "X$ac_wcout" | sed -e 's,^X,,' -e 's/^[ ]*\([0-9][0-9]*\).*$/\1/'`
+ ac_count=`echo "X$ac_wcout" | sed -e 's,^X,,' -e 's/^[ ]*\([0-9][0-9]*\).*$/\1/'`
changequote([,])dnl
- (test "$ac_count" -ge 0) 2>/dev/null || ac_count=-1
- else
- rm -f "$ac_nlist"T
- ac_count=-1
- fi
+ (test "$ac_count" -ge 0) 2>/dev/null || ac_count=-1
+ else
+ rm -f "$ac_nlist"T
+ ac_count=-1
+ fi
- # Make sure that we snagged all the symbols we need.
- if egrep ' nm_test_var$' "$ac_nlist" >/dev/null; then
- if egrep ' nm_test_func$' "$ac_nlist" >/dev/null; then
- cat <<EOF > conftest.c
+ # Make sure that we snagged all the symbols we need.
+ if egrep ' nm_test_var$' "$ac_nlist" >/dev/null; then
+ if egrep ' nm_test_func$' "$ac_nlist" >/dev/null; then
+ cat <<EOF > conftest.c
#ifdef __cplusplus
extern "C" {
#endif
EOF
- # Now generate the symbol file.
- sed 's/^.* \(.*\)$/extern char \1;/' < "$ac_nlist" >> conftest.c
+ # Now generate the symbol file.
+ sed 's/^.* \(.*\)$/extern char \1;/' < "$ac_nlist" >> conftest.c
- cat <<EOF >> conftest.c
+ cat <<EOF >> conftest.c
#if defined (__STDC__) && __STDC__
# define lt_ptr_t void *
#else
}
#endif
EOF
- # Now try linking the two files.
- mv conftest.$ac_objext conftestm.$ac_objext
- ac_save_LIBS="$LIBS"
- ac_save_CFLAGS="$CFLAGS"
- LIBS="conftestm.$ac_objext"
- CFLAGS="$CFLAGS$no_builtin_flag"
- if AC_TRY_EVAL(ac_link) && test -s conftest; then
- ac_pipe_works=yes
+ # Now try linking the two files.
+ mv conftest.$ac_objext conftestm.$ac_objext
+ ac_save_LIBS="$LIBS"
+ ac_save_CFLAGS="$CFLAGS"
+ LIBS="conftestm.$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 "configure: failed program was:" >&AC_FD_CC
- cat conftest.c >&AC_FD_CC
+ echo "cannot find nm_test_func in $ac_nlist" >&AC_FD_CC
fi
- LIBS="$ac_save_LIBS"
- CFLAGS="$ac_save_CFLAGS"
else
- echo "cannot find nm_test_func in $ac_nlist" >&AC_FD_CC
+ echo "cannot find nm_test_var in $ac_nlist" >&AC_FD_CC
fi
else
- echo "cannot find nm_test_var in $ac_nlist" >&AC_FD_CC
+ echo "cannot run $ac_cv_sys_global_symbol_pipe" >&AC_FD_CC
fi
else
- echo "cannot run $ac_cv_sys_global_symbol_pipe" >&AC_FD_CC
+ echo "$progname: failed program was:" >&AC_FD_CC
+ cat conftest.c >&AC_FD_CC
fi
-else
- echo "$progname: failed program was:" >&AC_FD_CC
- cat conftest.c >&AC_FD_CC
-fi
-rm -rf conftest*
+ rm -rf conftest*
-# Do not use the global_symbol_pipe unless it works.
-test "$ac_pipe_works" = yes || ac_cv_sys_global_symbol_pipe=
+ # Do not use the global_symbol_pipe unless it works.
+ if test "$ac_pipe_works" = yes; then
+ break
+ else
+ ac_cv_sys_global_symbol_pipe=
+ fi
+done
])
ac_result=yes
aix*)
symcode='[BCDTU]'
;;
-sunos* | cygwin32* | mingw32*)
- sympat='_\([_A-Za-z][_A-Za-z0-9]*\)'
- ;;
irix*)
# Cannot use undefined symbols on IRIX because inlined functions mess us up.
symcode='[BCDEGRST]'
;;
esac
-# Write the raw and C identifiers.
-global_symbol_pipe="sed -n -e 's/^.* $symcode $sympat$/$symxfrm/p'"
+# Try without a prefix undercore, then with it.
+for ac_symprfx in "" "_"; do
-# Check to see that the pipe works correctly.
-pipe_works=no
-$rm conftest*
-cat > conftest.c <<EOF
+ # Write the raw and C identifiers.
+ global_symbol_pipe="sed -n -e 's/^.* $symcode $ac_symprfx$sympat$/$symxfrm/p'"
+
+ # Check to see that the pipe works correctly.
+ pipe_works=no
+ $rm conftest*
+ cat > conftest.c <<EOF
#ifdef __cplusplus
extern "C" {
#endif
main(){nm_test_var='a';nm_test_func();return(0);}
EOF
-echo "$progname:@LINENO@: checking if global_symbol_pipe works" >&5
-if { (eval echo $progname:@LINENO@: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; } && test -s conftest.$objext; then
- # Now try to grab the symbols.
- nlist=conftest.nm
- if { echo "$progname:@LINENO@: eval \"$NM conftest.$objext | $global_symbol_pipe > $nlist\"" >&5; eval "$NM conftest.$objext | $global_symbol_pipe > $nlist 2>&5"; } && test -s "$nlist"; then
-
- # Try sorting and uniquifying the output.
- if sort "$nlist" | uniq > "$nlist"T; then
- mv -f "$nlist"T "$nlist"
- wcout=`wc "$nlist" 2>/dev/null`
- count=`$echo "X$wcout" | $Xsed -e 's/^[ ]*\([0-9][0-9]*\).*$/\1/'`
- (test "$count" -ge 0) 2>/dev/null || count=-1
- else
- rm -f "$nlist"T
- count=-1
- fi
+ echo "$progname:@LINENO@: checking if global_symbol_pipe works" >&5
+ if { (eval echo $progname:@LINENO@: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; } && test -s conftest.$objext; then
+ # Now try to grab the symbols.
+ nlist=conftest.nm
+ if { echo "$progname:@LINENO@: eval \"$NM conftest.$objext | $global_symbol_pipe > $nlist\"" >&5; eval "$NM conftest.$objext | $global_symbol_pipe > $nlist 2>&5"; } && test -s "$nlist"; then
+
+ # Try sorting and uniquifying the output.
+ if sort "$nlist" | uniq > "$nlist"T; then
+ mv -f "$nlist"T "$nlist"
+ wcout=`wc "$nlist" 2>/dev/null`
+ count=`$echo "X$wcout" | $Xsed -e 's/^[ ]*\([0-9][0-9]*\).*$/\1/'`
+ (test "$count" -ge 0) 2>/dev/null || count=-1
+ else
+ rm -f "$nlist"T
+ count=-1
+ fi
- # Make sure that we snagged all the symbols we need.
- if egrep ' nm_test_var$' "$nlist" >/dev/null; then
- if egrep ' nm_test_func$' "$nlist" >/dev/null; then
- cat <<EOF > conftest.c
+ # Make sure that we snagged all the symbols we need.
+ if egrep ' nm_test_var$' "$nlist" >/dev/null; then
+ if egrep ' nm_test_func$' "$nlist" >/dev/null; then
+ cat <<EOF > conftest.c
#ifdef __cplusplus
extern "C" {
#endif
EOF
- # Now generate the symbol file.
- sed 's/^.* \(.*\)$/extern char \1;/' < "$nlist" >> conftest.c
+ # Now generate the symbol file.
+ sed 's/^.* \(.*\)$/extern char \1;/' < "$nlist" >> conftest.c
- cat <<EOF >> conftest.c
+ cat <<EOF >> conftest.c
#if defined (__STDC__) && __STDC__
# define lt_ptr_t void *
#else
dld_preloaded_symbols[] =
{
EOF
- sed 's/^\(.*\) \(.*\)$/ {"\1", (lt_ptr_t) \&\2},/' < "$nlist" >> conftest.c
- cat <<\EOF >> conftest.c
+ sed 's/^\(.*\) \(.*\)$/ {"\1", (lt_ptr_t) \&\2},/' < "$nlist" >> conftest.c
+ cat <<\EOF >> conftest.c
{0, (lt_ptr_t) 0}
};
}
#endif
EOF
- # Now try linking the two files.
- mv conftest.$objext conftestm.$objext
- save_LIBS="$LIBS"
- save_CFLAGS="$CFLAGS"
- LIBS="conftestm.$objext"
- CFLAGS="$CFLAGS$no_builtin_flag"
- if { (eval echo $progname:@LINENO@: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
- pipe_works=yes
- else
- echo "$progname: failed program was:" >&5
- cat conftest.c >&5
- fi
- LIBS="$save_LIBS"
+ # Now try linking the two files.
+ mv conftest.$objext conftestm.$objext
+ save_LIBS="$LIBS"
+ save_CFLAGS="$CFLAGS"
+ LIBS="conftestm.$objext"
+ CFLAGS="$CFLAGS$no_builtin_flag"
+ if { (eval echo $progname:@LINENO@: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+ pipe_works=yes
+ else
+ echo "$progname: failed program was:" >&5
+ cat conftest.c >&5
+ fi
+ LIBS="$save_LIBS"
+ else
+ echo "cannot find nm_test_func in $nlist" >&5
+ fi
else
- echo "cannot find nm_test_func in $nlist" >&5
+ echo "cannot find nm_test_var in $nlist" >&5
fi
else
- echo "cannot find nm_test_var in $nlist" >&5
+ echo "cannot run $global_symbol_pipe" >&5
fi
else
- echo "cannot run $global_symbol_pipe" >&5
+ echo "$progname: failed program was:" >&5
+ cat conftest.c >&5
fi
-else
- echo "$progname: failed program was:" >&5
- cat conftest.c >&5
-fi
-$rm conftest*
+ $rm conftest*
-# Do not use the global_symbol_pipe unless it works.
-echo "$ac_t$pipe_works" 1>&6
-test "$pipe_works" = yes || global_symbol_pipe=
+ # Do not use the global_symbol_pipe unless it works.
+ echo "$ac_t$pipe_works" 1>&6
+ if test "$pipe_works" = yes; then
+ break
+ else
+ global_symbol_pipe=
+ fi
+done
# Check hardcoding attributes.
echo $ac_n "checking how to hardcode library paths into programs... $ac_c" 1>&6
projects / thirdparty / libtool.git / commitdiff
