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git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@7508 57a11ea4-9604-0410-9ed3-97b8803252fd
33 lines
1.0 KiB
Plaintext
33 lines
1.0 KiB
Plaintext
dnl as-scrub-include.m4 0.0.1
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dnl autostars m4 macro for scrubbing CFLAGS of system include dirs
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dnl because gcc 3.x complains about including system including dirs
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dnl
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dnl thomas@apestaart.org
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dnl
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dnl This macro uses output of cpp -v and expects it to contain text that
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dnl looks a little bit like this:
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dnl #include <...> search starts here:
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dnl /usr/local/include
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dnl /usr/lib/gcc-lib/i386-redhat-linux/3.2/include
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dnl /usr/include
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dnl End of search list.
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dnl AS_SCRUB_INCLUDE(VAR)
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dnl example
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dnl AS_SCRUB_INCLUDE(CFLAGS)
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dnl will remove all system include dirs from the given CFLAGS
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AC_DEFUN(AS_SCRUB_INCLUDE,
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[
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GIVEN_CFLAGS=$[$1]
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INCLUDE_DIRS=`echo | cpp -v 2>&1`
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dnl remove everything from this output between the "starts here" and "End of"
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dnl line
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INCLUDE_DIRS=`echo $INCLUDE_DIRS | sed -e 's/.*<...> search starts here://' | sed -e 's/End of search list.*//'`
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for dir in $INCLUDE_DIRS; do
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GIVEN_CFLAGS=$(echo $GIVEN_CFLAGS | sed -e "s;-I$dir ;;" | sed -e "s;-I$dir$;;")
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done
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[$1]=$GIVEN_CFLAGS
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])
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