[Buildroot] [PATCH 1/1] qt: fix build on powerpc_e500mc

Fabrice Fontaine fontaine.fabrice at gmail.com
Wed Aug 29 17:36:54 UTC 2018


gcc bug internal compiler error: in validate_condition_mode, at
config/rs6000/rs6000.c:180744. Bug is fixed since gcc 7.2.
Workaround is to set -mno-isel, see
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60818 and
https://gcc.gnu.org/ml/gcc-patches/2016-02/msg01036.html

Fixes:
 - http://autobuild.buildroot.net/results/9b9d11b3281a72c8f54fc675408acb96d24d8e7e

Signed-off-by: Fabrice Fontaine <fontaine.fabrice at gmail.com>
---
 package/qt/qt.mk | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/package/qt/qt.mk b/package/qt/qt.mk
index 1dcb05d6af..24ebbfdfdb 100644
--- a/package/qt/qt.mk
+++ b/package/qt/qt.mk
@@ -32,6 +32,15 @@ QT_LDFLAGS = $(TARGET_LDFLAGS)
 # use an older c++ standard to prevent build failure
 QT_CXXFLAGS += -std=gnu++98
 
+# gcc bug internal compiler error: in validate_condition_mode, at
+# config/rs6000/rs6000.c:180744. Bug is fixed since gcc 7.2.
+# Workaround is to set -mno-isel, see
+# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60818 and
+# https://gcc.gnu.org/ml/gcc-patches/2016-02/msg01036.html
+ifeq ($(BR2_powerpc_e500mc):$(BR2_TOOLCHAIN_GCC_AT_LEAST_8),y:)
+QT_CXXFLAGS += -mno-isel
+endif
+
 # Qt has some assembly function that are not present in thumb1 mode:
 # Error: selected processor does not support Thumb mode `swp r3,r7,[r4]'
 # so, we desactivate thumb mode
-- 
2.14.1



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