| dnl as-scrub-include.m4 0.0.4 |
| |
| dnl autostars m4 macro for scrubbing CFLAGS of system include dirs |
| dnl because gcc 3.x complains about including system including dirs |
| |
| dnl Thomas Vander Stichele <thomas at apestaart dot org> |
| |
| dnl $Id: as-scrub-include.m4,v 1.7 2004/06/12 08:30:20 thomasvs Exp $ |
| |
| dnl This macro uses output of cpp -v and expects it to contain text that |
| dnl looks a little bit like this: |
| dnl #include <...> search starts here: |
| dnl /usr/local/include |
| dnl /usr/lib/gcc-lib/i386-redhat-linux/3.2/include |
| dnl /usr/include |
| dnl End of search list. |
| |
| dnl AS_SCRUB_INCLUDE(VAR) |
| dnl example |
| dnl AS_SCRUB_INCLUDE(CFLAGS) |
| dnl will remove all system include dirs from the given CFLAGS |
| |
| AC_DEFUN([AS_SCRUB_INCLUDE], |
| [ |
| GIVEN_CFLAGS=$[$1] |
| INCLUDE_DIRS=`echo | cpp -v 2>&1` |
| |
| dnl remove everything from this output between the "starts here" and "End of" |
| dnl line |
| INCLUDE_DIRS=`echo $INCLUDE_DIRS | sed -e 's/.*<...> search starts here://' | sed -e 's/End of search list.*//'` |
| for dir in $INCLUDE_DIRS; do |
| dnl use "" as the sed script so $dir gets expanded |
| GIVEN_CFLAGS=`echo $GIVEN_CFLAGS | sed -e "s#-I$dir ##"` |
| done |
| [$1]=$GIVEN_CFLAGS |
| ]) |
