-_am_result=none
-# First try GNU make style include.
-echo "include confinc" > confmf
-# Ignore all kinds of additional output from `make'.
-case `$am_make -s -f confmf 2> /dev/null` in #(
-*the\ am__doit\ target*)
- am__include=include
- am__quote=
- _am_result=GNU
- ;;
-esac
-# Now try BSD make style include.
-if test "$am__include" = "#"; then
- echo '.include "confinc"' > confmf
- case `$am_make -s -f confmf 2> /dev/null` in #(
- *the\ am__doit\ target*)
- am__include=.include
- am__quote="\""
- _am_result=BSD
- ;;
- esac
-fi
-AC_SUBST([am__include])
-AC_SUBST([am__quote])
-AC_MSG_RESULT([$_am_result])
-rm -f confinc confmf
-])
-
-# Copyright (C) 1999, 2000, 2001, 2003, 2004, 2005, 2008
-# 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.
-
-# serial 6
-
-# 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 $CC"
-fi
-dnl Make sure AC_PROG_CC is never called again, or it will override our
-dnl setting of CC.
-m4_define([AC_PROG_CC],
- [m4_fatal([AC_PROG_CC cannot be called after AM_PROG_CC_C_O])])
-])
+# BSD make does it like this.
+echo '.include "confinc.mk" # ignored' > confmf.BSD
+# Other make implementations (GNU, Solaris 10, AIX) do it like this.
+echo 'include confinc.mk # ignored' > confmf.GNU
+_am_result=no
+for s in GNU BSD; do
+ AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
+ AS_CASE([$?:`cat confinc.out 2>/dev/null`],
+ ['0:this is the am__doit target'],
+ [AS_CASE([$s],
+ [BSD], [am__include='.include' am__quote='"'],
+ [am__include='include' am__quote=''])])
+ if test "$am__include" != "#"; then
+ _am_result="yes ($s style)"
+ break
+ fi
+done
+rm -f confinc.* confmf.*
+AC_MSG_RESULT([${_am_result}])
+AC_SUBST([am__include])])
+AC_SUBST([am__quote])])