media-libs/mesa: Re-enable LTO (19.1)

Ref #143

Signed-off-by: Shane Peelar <[email protected]>

sys-config/ltoize/files/package.cflags/ltoworkarounds.conf

@@ -13,7 +13,7 @@ sys-apps/bat *FLAGS+=-ffat-lto-objects # fails to link against git2 functions
 
 #Packages which cannot be built with LTO at all (previously was nolto.conf)
 dev-util/perf *FLAGS-=-flto*
-media-libs/mesa *FLAGS-=-flto* #*FLAGS-=-Wl,--as-needed # strange LTO linking bug that causes pthreads to be thrown out early under LTO (#50)
+<media-libs/mesa-19.1.0_rc1 *FLAGS-=-flto* #*FLAGS-=-Wl,--as-needed # strange LTO linking bug that causes pthreads to be thrown out early under LTO (#50)
 app-emulation/qemu *FLAGS-=-flto* *FLAGS+=-fno-strict-aliasing # required to compile qemu
 media-libs/alsa-lib *FLAGS-=-flto*
 dev-libs/elfutils *FLAGS-=-flto*