50 lines
1.3 KiB
Plaintext
50 lines
1.3 KiB
Plaintext
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# Check to see how 'make' treats includes. -*- Autoconf -*-
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# Copyright (C) 2001-2013 Free Software Foundation, Inc.
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#
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# This file is free software; the Free Software Foundation
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# gives unlimited permission to copy and/or distribute it,
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# with or without modifications, as long as this notice is preserved.
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# AM_MAKE_INCLUDE()
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# -----------------
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# Check to see how make treats includes.
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AC_DEFUN([AM_MAKE_INCLUDE],
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[am_make=${MAKE-make}
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cat > confinc << 'END'
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am__doit:
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@echo this is the am__doit target
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.PHONY: am__doit
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END
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# If we don't find an include directive, just comment out the code.
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AC_MSG_CHECKING([for style of include used by $am_make])
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am__include="#"
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am__quote=
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_am_result=none
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# First try GNU make style include.
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echo "include confinc" > confmf
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# Ignore all kinds of additional output from 'make'.
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case `$am_make -s -f confmf 2> /dev/null` in #(
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*the\ am__doit\ target*)
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am__include=include
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am__quote=
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_am_result=GNU
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;;
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esac
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# Now try BSD make style include.
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if test "$am__include" = "#"; then
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echo '.include "confinc"' > confmf
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case `$am_make -s -f confmf 2> /dev/null` in #(
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*the\ am__doit\ target*)
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am__include=.include
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am__quote="\""
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_am_result=BSD
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;;
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esac
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fi
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AC_SUBST([am__include])
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AC_SUBST([am__quote])
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AC_MSG_RESULT([$_am_result])
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rm -f confinc confmf
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])
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