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xserver_xorg-server: disable libunwind on MIPS with 32-bit pointers 

libunwind support in xorg-server is not only broken for MIPS64 n32 but
for all MIPS variants with 32-bit pointers. The reason is exactly the
same one. libunwind defines a uint64 variable to store the words. Then,
xorg-server casts that variable (64-bit) into a pointer (32-bit), and
the compilation fails:

backtrace.c:98:13: error: cast to pointer from integer of different size
[-Werror=int-to-pointer-cast]

Related:
  https://bugs.freedesktop.org/show_bug.cgi?id=79939

Fixes:
  http://autobuild.buildroot.net/results/87b/87be2c95957f9925c1258812e536df72689fc5da/

Signed-off-by: Vicente Olivert Riera <Vincent.Riera@imgtec.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Vicente Olivert Riera 2014-12-05 11:17:02 +00:00 committed by Thomas Petazzoni
parent dab47af5d9
commit 3f985a2628
1 changed files with 3 additions and 2 deletions
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5
package/x11r7/xserver_xorg-server/xserver_xorg-server.mk
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@ -144,10 +144,11 @@ ifeq ($(BR2_PACKAGE_FREETYPE),y)
XSERVER_XORG_SERVER_DEPENDENCIES += freetype
endif
# libunwind support is broken on MIPS64 n32
# libunwind support is broken on all MIPS variants with 32-bit pointers
# https://bugs.freedesktop.org/show_bug.cgi?id=79939
ifeq ($(BR2_PACKAGE_LIBUNWIND)-$(BR2_MIPS_NABI32),y-)
ifeq ($(BR2_PACKAGE_LIBUNWIND)-$(BR2_MIPS_OABI32)-$(BR2_MIPS_NABI32),y--)
XSERVER_XORG_SERVER_DEPENDENCIES += libunwind
XSERVER_XORG_SERVER_CONF_OPTS += --enable-libunwind
else
XSERVER_XORG_SERVER_CONF_OPTS += --disable-libunwind
endif