[Buildroot] [PATCH v1] package/gcc: backport arm acle bugfix 81497

[Peter Korsgaard]

>>>>> "Gaël" == Gaël PORTAY <gael.portay at savoirfairelinux.com> writes:

 > The compiler g++ reports an error when the header arm_acle.h is
 > included from version 7.

 > This patch backports the bugfix upstreamed[1] for gcc-7 and gcc-8.

 > Fixes:

 > 	In file included from ../../include/QtCore/5.10.1/QtCore/private/../../../../../src/corelib/tools/qsimd_p.h:333,
 > 	                 from ../../include/QtCore/5.10.1/QtCore/private/qsimd_p.h:1,
 > 	                 from global/qlogging.cpp:58:
 > 	/home/gportay/src/buildroot/output/host/lib/gcc/arm-buildroot-linux-gnueabihf/8.1.0/include/arm_acle.h: In function ‘void __arm_ldc(unsigned int, unsigned int, const void*)’:
 > 	/home/gportay/src/buildroot/output/host/lib/gcc/arm-buildroot-linux-gnueabihf/8.1.0/include/arm_acle.h:48:46: error: invalid conversion from ‘const void*’ to ‘const int*’ [-fpermissive]
 > 	   return __builtin_arm_ldc (__coproc, __CRd, __p);
 >                                               ^~~
 > 	<built-in>: note:   initializing argument 3 of ‘void __builtin_arm_ldc(unsigned int, unsigned int, const int*)’
 > 	...
 > 	Makefile:196: recipe for target 'sub-corelib-make_first' failed
 > 	make[3]: *** [sub-corelib-make_first] Error 2
 > 	Makefile:48: recipe for target 'sub-src-make_first' failed
 > 	make[2]: *** [sub-src-make_first] Error 2
 > 	package/pkg-generic.mk:229: recipe for target '/home/gportay/src/buildroot/output/build/qt5base-5.10.1/.stamp_built' failed
 > 	make[1]: *** [/home/gportay/src/buildroot/output/build/qt5base-5.10.1/.stamp_built] Error 2
 > 	Makefile:16: recipe for target '_all' failed
 > 	make: *** [_all] Error 2

 > [1]: https://gcc.gnu.org/bugzilla//show_bug.cgi?id=81497

 > Signed-off-by: Gaël PORTAY <gael.portay at savoirfairelinux.com>
 > ---
 > Hi all,

 > I found a build issue when I was building qt5base 5.10/5.11 for raspberrypi3.

 > The issue comes from g++ and arm_acle.h. I backported the upstream bugfix and
 > successfully tested it against gcc-7 and gcc-8.

Committed to 2018.02.x and 2018.05.x after dropping the gcc-8.x patch, thanks.

-- 
Bye, Peter Korsgaard