The configure script injects extra CFLAGS (-O3, -Wtype-limits and -Wcast-qual). Index: libvpx-0.9.0_p20100612.ebuild =================================================================== RCS file: /var/cvsroot/gentoo-x86/media-libs/libvpx/libvpx-0.9.0_p20100612.ebuild,v retrieving revision 1.3 diff -u -B -r1.3 libvpx-0.9.0_p20100612.ebuild --- libvpx-0.9.0_p20100612.ebuild 12 Jun 2010 21:45:36 -0000 1.3 +++ libvpx-0.9.0_p20100612.ebuild 13 Jun 2010 17:31:42 -0000 @@ -30,6 +30,16 @@ ) " +src_prepare() { + # support gcc 4.2 + sed \ + -i configure \ + -e '/-Wtype-limits/d' \ + -e '/-Wcast-qual/d' \ + || die "sed failed" + sed -i build/make/configure.sh -e '/-O3/d' || die "sed failed" +} + src_configure() { tc-export CC ./configure \
(In reply to comment #0) > The configure script injects extra CFLAGS (-O3, -Wtype-limits and -Wcast-qual). -O3 matters; -W* do not and I think it is unnecessary to disable them.
(In reply to comment #1) > (In reply to comment #0) > > The configure script injects extra CFLAGS (-O3, -Wtype-limits and -Wcast-qual). > > -O3 matters; -W* do not and I think it is unnecessary to disable them. > Rah, sorry, I didn't see the comment in the diff; are those -W* stuff new in gcc 4.3 ?
with libvpx-9999 I get flags like that: x86_64-pc-linux-gnu-gcc -I/var/tmp/portage/media-libs/libvpx-9999/work/libvpx-9999/vp8 -I/var/tmp/portage/media-libs/libvpx-9999/work/libvpx-9999/vp8 -I/var/tmp/portage/media-libs/libvpx-9999/work/libvpx-9999/vp9 -I/var/tmp/portage/media-libs/libvpx-9999/work/libvpx-9999/vp9 -march=native -mssse3 -msse4 -msse4.1 -msse4.2 -mavx -maes -O2 -pipe -ggdb -m64 -O3 -fPIC -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=0 -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -march=native -mssse3 -msse4 -msse4.1 -msse4.2 -mavx -maes -O2 -pipe -ggdb -Wall -Wdeclaration-after-statement -Wdisabled-optimization -Wpointer-arith -Wtype-limits -Wcast-qual -Wvla -Wimplicit-function-declaration -Wuninitialized -Wunused-variable -Wunused-but-set-variable -Wno-unused-function -I. -I"/var/tmp/portage/media-libs/libvpx-9999/work/libvpx-9999" -c -o vp8cx_set_ref.c.o vp8cx_set_ref.c it injects -O3 but is overriden by my CFLAGS -> not a problem. -W* flags are checked at configure -> not a prolem either. fixed.
