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qt: disable precompiled headers to workaround compilation failure

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Precompiled header implementation is buggy in current Qt as described at
http://comments.gmane.org/gmane.comp.lib.qt.devel/5933.

The only known workaround is currently to add -no-pch to configure.

Fixes build failure terminating with error
  compiling ../3rdparty/pixman/pixman-arm-neon-asm.S
  cc1: fatal error: .pch/release-shared-emb-arm/QtGui: No such file or directory
  compilation terminated.
such as:
http://autobuild.buildroot.net/results/648265012591280fa592a239f86ee39aec2d5fa6/build-end.log

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
This commit is contained in:
Luca Ceresoli 2013-02-18 09:39:32 +00:00 committed by Peter Korsgaard
parent e6f0a3bd5f
commit 4b6f552a07
1 changed files with 3 additions and 3 deletions
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6
package/qt/qt.mk
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@ -416,10 +416,10 @@ else
QT_CONFIGURE_OPTS += -no-declarative QT_CONFIGURE_OPTS += -no-declarative
endif endif
# ccache and precompiled headers don't play well together # -no-pch is needed to workaround the issue described at
ifeq ($(BR2_CCACHE),y) # http://comments.gmane.org/gmane.comp.lib.qt.devel/5933.
# In addition, ccache and precompiled headers don't play well together
QT_CONFIGURE_OPTS += -no-pch QT_CONFIGURE_OPTS += -no-pch
endif
# x86x86fix # x86x86fix
# Workaround Qt Embedded bug when crosscompiling for x86 under x86 with linux # Workaround Qt Embedded bug when crosscompiling for x86 under x86 with linux