dnl as-scrub-include.m4 0.0.1 dnl autostars m4 macro for scrubbing CFLAGS of system include dirs dnl because gcc 3.x complains about including system including dirs dnl dnl thomas@apestaart.org dnl 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 $INCLUDE_DIRS; do GIVEN_CFLAGS=$(echo $GIVEN_CFLAGS | sed -e "s;-I$dir ;;" | sed -e "s;-I$dir$;;") done [$1]=$GIVEN_CFLAGS ])
