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2013-02-13Fix --enable-warningflagsAllan McRae1-0/+4
gcc gives an error on an unknown warning flag, but clang just gives a warning. Upgrade the warning in clang to an error by activating -Werror=unknown-warning-option if available. Signed-off-by: Allan McRae <allan@archlinux.org>
2012-11-27Fix typo in acinclude.m4 fs_old_*flagsDan McGee1-3/+3
Introduced in commit d2669b47. Signed-off-by: Dan McGee <dan@archlinux.org> Signed-off-by: Allan McRae <allan@archlinux.org>
2012-08-01Do not enable _FORTIFY_SOURCE without optimizationAllan McRae1-3/+9
With glibc-2.16, using -D_FORTIFY_SOURCE requires that optimization (-O) be used or it will prodice a warning message. Enable -Werror in our test for _FORTIFY_SOURCE support to catch when a users specifies CFLAGS without optimization. The line to set CFLAGS="" when no CFLAGS are specified (either due to being unset or geniunely empty) is required as autoconf will use "-O2 -g" for its tests by defult when CFLAGS is unset, but will not add them to the CFLAGS used... Signed-off-by: Allan McRae <allan@archlinux.org>
2012-05-21Define _FORTIFY_SOURCE in CPPFLAGSAllan McRae1-1/+1
The -D_FORTIFY_SOURCE=2 define should be in CPPFLAGS and not CFLAGS Signed-off-by: Allan McRae <allan@archlinux.org> Signed-off-by: Dan McGee <dan@archlinux.org>
2012-04-09Add a new configure option for excessive compiler warning flagsDan McGee1-0/+20
This adds a bunch of warning flags to the list used when compiling. Signed-off-by: Dan McGee <dan@archlinux.org>
2012-04-09buildsys: move acinclude.m4 to m4/Dave Reisner1-0/+150
Signed-off-by: Dave Reisner <dreisner@archlinux.org>