2 # Copyright (C) 1999-2012 Free Software Foundation, Inc.
4 # This file is free software; the Free Software Foundation
5 # gives unlimited permission to copy and/or distribute it,
6 # with or without modifications, as long as this notice is preserved.
10 # Like AC_PROG_CC_C_O, but changed for automake.
11 AC_DEFUN([AM_PROG_CC_C_O],
12 [AC_REQUIRE([AC_PROG_CC_C_O])dnl
13 AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
14 AC_REQUIRE_AUX_FILE([compile])dnl
15 # FIXME: we rely on the cache variable name because
16 # there is no other way.
18 am_cc=`echo $[2] | sed ['s/[^a-zA-Z0-9_]/_/g;s/^[0-9]/_/']`
19 eval am_t=\$ac_cv_prog_cc_${am_cc}_c_o
20 if test "$am_t" != yes; then
21 # Losing compiler, so override with the script.
22 # FIXME: It is wrong to rewrite CC.
23 # But if we don't then we get into trouble of one sort or another.
24 # A longer-term fix would be to have automake use am__CC in this case,
25 # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
26 CC="$am_aux_dir/compile $CC"
28 dnl Make sure AC_PROG_CC is never called again, or it will override our
30 m4_define([AC_PROG_CC],
31 [m4_fatal([AC_PROG_CC cannot be called after AM_PROG_CC_C_O])])