+bup_config_cflags=()
+
+bup-add-cflag-if-supported()
+{
+ local opt="$1"
+ if test -z "$opt"; then
+ AC_FAIL 'No option to check'
+ fi
+ TLOGN "checking for $AC_CC $opt support"
+ if bup_try_c_code \
+ "int main(int argc, char**argv) { return 0; }" \
+ "$opt";
+ then
+ bup_config_cflags+="$opt"
+ TLOG ' (found)'
+ else
+ TLOG ' (not found)'
+ fi
+}
+
+