[Buildroot] [PATCH] package/qt5base: fix building with correct optimization

[Giulio Benetti]

On previous patch:
https://git.buildroot.net/buildroot/commit/?id=7c0aa83527e0b0179f9e3f73a3e63df1fdc5a6e6
we didn't take care that QMAKE_CXXFLAGS_RELEASE variable is set to
QMAKE_CFLAGS_OPTIMIZE(-O2) inside the same file:
mkspecs/common/gcc-base.conf
So overriding all QMAKE_CFLAGS_OPTIMIZE* variables after gcc.base.conf
file doesn't change the content of QMAKE_CXXFLAGS_RELEASE.
QMAKE_CXXFLAGS_RELEASE/DEBUG is appended to the end of QMAKE_CXXFLAGS in
mkspecs/features/default_post.prf if building with or without debug
symbols.

Let's override directly QMAKE_CFLAGS_RELEASE/DEBUG and
QMAKE_CXXFLAGS_RELEASE/DEBUG in qmake.conf.in and drop all
QMAKE_CFLAGS_OPTIMIZE* variables overriding.

Fixes:
http://autobuild.buildroot.net/results/ada/adaa9b4bcc6f9d2b5e82c479859a07e8abf5cf13/
http://autobuild.buildroot.net/results/a83/a83bdd1f3bf309c07abebe871b017c331ed36e67/

Signed-off-by: Giulio Benetti <giulio.benetti at benettiengineering.com>
---
 package/qt5/qt5base/qmake.conf.in | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/package/qt5/qt5base/qmake.conf.in b/package/qt5/qt5base/qmake.conf.in
index 2eb564e172..66b80c302a 100644
--- a/package/qt5/qt5base/qmake.conf.in
+++ b/package/qt5/qt5base/qmake.conf.in
@@ -15,10 +15,10 @@ QMAKE_CXX               = $${CROSS_COMPILE}g++
 # modifications to gcc-base.conf
 QMAKE_CFLAGS           += $${BR_COMPILER_CFLAGS}
 QMAKE_CXXFLAGS         += $${BR_COMPILER_CXXFLAGS}
-QMAKE_CFLAGS_OPTIMIZE       =
-QMAKE_CFLAGS_OPTIMIZE_DEBUG =
-QMAKE_CFLAGS_OPTIMIZE_FULL  =
-QMAKE_CFLAGS_OPTIMIZE_SIZE  =
+QMAKE_CFLAGS_DEBUG =
+QMAKE_CXXFLAGS_DEBUG =
+QMAKE_CFLAGS_RELEASE =
+QMAKE_CXXFLAGS_RELEASE =
 CONFIG                 += nostrip
 
 QMAKE_LIBS             += -lrt -lpthread -ldl
-- 
2.20.1