5 # Like AC_PROG_CC_C_O, but changed for automake.
7 # Copyright (C) 1999, 2000, 2001, 2003, 2004 Free Software Foundation, Inc.
9 # This program is free software; you can redistribute it and/or modify
10 # it under the terms of the GNU General Public License as published by
11 # the Free Software Foundation; either version 2, or (at your option)
14 # This program is distributed in the hope that it will be useful,
15 # but WITHOUT ANY WARRANTY; without even the implied warranty of
16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 # GNU General Public License for more details.
19 # You should have received a copy of the GNU General Public License
20 # along with this program; if not, write to the Free Software
21 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
24 AC_DEFUN([AM_PROG_CC_C_O],
25 [AC_REQUIRE([AC_PROG_CC_C_O])dnl
26 AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
27 AC_REQUIRE_AUX_FILE([compile])dnl
28 # FIXME: we rely on the cache variable name because
29 # there is no other way.
31 ac_cc=`echo $[2] | sed ['s/[^a-zA-Z0-9_]/_/g;s/^[0-9]/_/']`
32 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" != yes"; then
33 # Losing compiler, so override with the script.
34 # FIXME: It is wrong to rewrite CC.
35 # But if we don't then we get into trouble of one sort or another.
36 # A longer-term fix would be to have automake use am__CC in this case,
37 # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
38 CC="$am_aux_dir/compile $CC"
40 dnl Make sure AC_PROG_CC is never called again, or it will override our
42 m4_define([AC_PROG_CC],
43 [m4_fatal([AC_PROG_CC cannot be called after AM_PROG_CC_C_O])])