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##                                                          -*- Autoconf -*-
# Copyright (C) 1999-2013 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

# AM_PROG_CC_C_O
# --------------
# Like AC_PROG_CC_C_O, but changed for automake.
AC_DEFUN([AM_PROG_CC_C_O],
[AC_REQUIRE([AC_PROG_CC_C_O])dnl
AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
AC_REQUIRE_AUX_FILE([compile])dnl
# FIXME: we rely on the cache variable name because
# there is no other way.
set dummy $CC
am_cc=`echo $[2] | sed ['s/[^a-zA-Z0-9_]/_/g;s/^[0-9]/_/']`
eval am_t=\$ac_cv_prog_cc_${am_cc}_c_o
if test "$am_t" != yes; then
   # Losing compiler, so override with the script.
   # FIXME: It is wrong to rewrite CC.
   # But if we don't then we get into trouble of one sort or another.
   # A longer-term fix would be to have automake use am__CC in this case,
   # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
   CC="$am_aux_dir/compile $CC"
fi
dnl Make sure AC_PROG_CC is never called again, or it will override our
dnl setting of CC.
m4_define([AC_PROG_CC],
          [m4_fatal([AC_PROG_CC cannot be called after AM_PROG_CC_C_O])])
])

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