+echo "$as_me:$LINENO: checking for obstacks" >&5
+echo $ECHO_N "checking for obstacks... $ECHO_C" >&6
+if test "${ac_cv_func_obstack+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+#include "obstack.h"
+#ifdef F77_DUMMY_MAIN
+# ifdef __cplusplus
+ extern "C"
+# endif
+ int F77_DUMMY_MAIN() { return 1; }
+#endif
+int
+main ()
+{
+struct obstack *mem; obstack_free(mem,(char *) 0)
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_func_obstack=yes
+else
+ echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_cv_func_obstack=no
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_func_obstack" >&5
+echo "${ECHO_T}$ac_cv_func_obstack" >&6
+if test $ac_cv_func_obstack = yes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_OBSTACK 1
+_ACEOF
+
+else
+ LIBOBJS="$LIBOBJS obstack.$ac_objext"
+fi
+
+echo "$as_me:$LINENO: checking for error_at_line" >&5
+echo $ECHO_N "checking for error_at_line... $ECHO_C" >&6
+if test "${ac_cv_lib_error_at_line+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+
+#ifdef F77_DUMMY_MAIN
+# ifdef __cplusplus
+ extern "C"
+# endif
+ int F77_DUMMY_MAIN() { return 1; }
+#endif
+int
+main ()
+{
+error_at_line (0, 0, "", 0, "");
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_lib_error_at_line=yes
+else
+ echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_cv_lib_error_at_line=no
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_lib_error_at_line" >&5
+echo "${ECHO_T}$ac_cv_lib_error_at_line" >&6
+if test $ac_cv_lib_error_at_line = no; then
+ LIBOBJS="$LIBOBJS error.$ac_objext"
+fi
+