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- # Check to see how 'make' treats includes. -*- Autoconf -*-
-
- # Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc.
-
- # This program is free software; you can redistribute it and/or modify
- # it under the terms of the GNU General Public License as published by
- # the Free Software Foundation; either version 2, or (at your option)
- # any later version.
-
- # This program is distributed in the hope that it will be useful,
- # but WITHOUT ANY WARRANTY; without even the implied warranty of
- # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- # GNU General Public License for more details.
-
- # You should have received a copy of the GNU General Public License
- # along with this program; if not, write to the Free Software
- # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- # 02111-1307, USA.
-
- # serial 2
-
- # AM_MAKE_INCLUDE()
- # -----------------
- # Check to see how make treats includes.
- AC_DEFUN([AM_MAKE_INCLUDE],
- [am_make=${MAKE-make}
- cat > confinc << 'END'
- am__doit:
- @echo done
- .PHONY: am__doit
- END
- # If we don't find an include directive, just comment out the code.
- AC_MSG_CHECKING([for style of include used by $am_make])
- am__include="#"
- am__quote=
- _am_result=none
- # First try GNU make style include.
- echo "include confinc" > confmf
- # We grep out `Entering directory' and `Leaving directory'
- # messages which can occur if `w' ends up in MAKEFLAGS.
- # In particular we don't look at `^make:' because GNU make might
- # be invoked under some other name (usually "gmake"), in which
- # case it prints its new name instead of `make'.
- if test "`$am_make -s -f confmf 2> /dev/null | grep -v 'ing directory'`" = "done"; then
- am__include=include
- am__quote=
- _am_result=GNU
- fi
- # Now try BSD make style include.
- if test "$am__include" = "#"; then
- echo '.include "confinc"' > confmf
- if test "`$am_make -s -f confmf 2> /dev/null`" = "done"; then
- am__include=.include
- am__quote="\""
- _am_result=BSD
- fi
- fi
- AC_SUBST([am__include])
- AC_SUBST([am__quote])
- AC_MSG_RESULT([$_am_result])
- rm -f confinc confmf
- ])
-