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- cat > conftest.$ac_ext <<EOF
- #ifdef __cplusplus
- extern "C" {
- #endif
- char nm_test_var;
- void nm_test_func(){}
- #ifdef __cplusplus
- }
- #endif
- int main(){nm_test_var='a';nm_test_func();return(0);}
- EOF
- if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
- (eval $ac_compile) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; then
- # Now try to grab the symbols.
- nlist=conftest.nm
- if { (eval echo "$as_me:$LINENO: \"$NM conftest.$ac_objext \| $lt_cv_sys_global_symbol_pipe \> $nlist\"") >&5
- (eval $NM conftest.$ac_objext \| $lt_cv_sys_global_symbol_pipe \> $nlist) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } && test -s "$nlist"; then
- # Try sorting and uniquifying the output.
- if sort "$nlist" | uniq > "$nlist"T; then
- mv -f "$nlist"T "$nlist"
- else
- rm -f "$nlist"T
- fi
- # Make sure that we snagged all the symbols we need.
- if grep ' nm_test_var$' "$nlist" >/dev/null; then
- if grep ' nm_test_func$' "$nlist" >/dev/null; then
- cat <<EOF > conftest.$ac_ext
- #ifdef __cplusplus
- extern "C" {
- #endif
- EOF
- # Now generate the symbol file.
- eval "$lt_cv_sys_global_symbol_to_cdecl"' < "$nlist" | grep -v main >> conftest.$ac_ext'
- cat <<EOF >> conftest.$ac_ext
- #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;
- }
- lt_preloaded_symbols[] =
- {
- EOF
- $SED "s/^$symcode$symcode* \(.*\) \(.*\)$/ {\"\2\", (lt_ptr_t) \&\2},/" < "$nlist" | grep -v main >> conftest.$ac_ext
- cat <<\EOF >> conftest.$ac_ext
- {0, (lt_ptr_t) 0}
- };
- #ifdef __cplusplus
- }
- #endif
- EOF
- # Now try linking the two files.
- mv conftest.$ac_objext conftstm.$ac_objext
- lt_save_LIBS="$LIBS"
- lt_save_CFLAGS="$CFLAGS"
- LIBS="conftstm.$ac_objext"
- CFLAGS="$CFLAGS$lt_prog_compiler_no_builtin_flag"
- if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
- (eval $ac_link) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } && test -s conftest${ac_exeext}; then
- pipe_works=yes
- fi
- LIBS="$lt_save_LIBS"
- CFLAGS="$lt_save_CFLAGS"
- else
- echo "cannot find nm_test_func in $nlist" >&5
- fi
- else
- echo "cannot find nm_test_var in $nlist" >&5
- fi
- else
- echo "cannot run $lt_cv_sys_global_symbol_pipe" >&5
- fi
- else
- echo "$progname: failed program was:" >&5
- cat conftest.$ac_ext >&5
- fi
- rm -rf conftest* conftst*
- # Do not use the global_symbol_pipe unless it works.
- if test "$pipe_works" = yes; then
- break
- else
- lt_cv_sys_global_symbol_pipe=
- fi
- done
- fi
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