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The new DirectFB version does not build with gcc 4.3 from the Blackfin toolchain. One of the reason is that va_copy has some issues, which were fixed in gcc 4.4.0 (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=36799). There are also some other issues, which were fixed by a patch proposed by Peter Seiderer at http://lists.busybox.net/pipermail/buildroot/2015-February/120281.html. However, it probably doesn't make a lot of sense to carry patches that are not upstream for such old compilers. Instead, this commit takes the action of making DirectFB available only on toolchains using gcc >= 4.5, which was tested with the Arago toolchain. gcc 4.4 could potentially work, but wasn't tested (it is no longer supported by the internal toolchain backend, and we don't have any toolchain based on gcc 4.4), so we take the safe decision of requiring at least gcc 4.5. [Peter: add comment explaining toolchain dependenc as suggested by Vincente] Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Reviewed-by: Vicente Olivert Riera <Vincent.Riera@imgtec.com> Signed-off-by: Peter Korsgaard <peter@korsgaard.com> |
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