Bump Buildroot Version to buildroot 2019_02_6

bsp/buildroot/package/prboom/0002-configure-remove-predefined-O2-optimization-flag.patch

@@ -0,0 +1,21 @@
+configure: remove predefined -O2 optimization flag
+
+CFLAGS_OPT variable forces to use -O2 optimization flag denying the
+possibility to use different optimization flag values.
+
+Remove -O2 flag from CFLAGS_OPT.
+
+Signed-off-by: Giulio Benetti <giulio.benetti@micronovasrl.com>
+---
+diff -urpN prboom-2.5.0.orig/configure.ac prboom-2.5.0/configure.ac
+--- prboom-2.5.0.orig/configure.ac	2019-06-20 14:07:45.058481879 +0200
++++ prboom-2.5.0/configure.ac	2019-06-20 14:09:05.066238825 +0200
+@@ -48,7 +48,7 @@ else
+ fi
+ 
+ dnl --- cph: work out flags to pass to compiler
+-CFLAGS_OPT="-O2 -fomit-frame-pointer"
++CFLAGS_OPT="-fomit-frame-pointer"
+ AC_C_COMPILE_FLAGS(-Wall)
+ dnl --- Option to enable debugging
+ AC_ARG_ENABLE(debug,AC_HELP_STRING([--enable-debug],[turns on various debugging features, like range checking and internal heap diagnostics]),,enable_debug="no")

bsp/buildroot/package/prboom/prboom.mk

@@ -10,6 +10,15 @@ PRBOOM_CONF_ENV = ac_cv_type_uid_t=yes
 PRBOOM_DEPENDENCIES = sdl sdl_net sdl_mixer
 PRBOOM_LICENSE = GPL-2.0+
 PRBOOM_LICENSE_FILES = COPYING
+PRBOOM_AUTORECONF = YES
+
+PRBOOM_CFLAGS = $(TARGET_CFLAGS)
+
+ifeq ($(BR2_TOOLCHAIN_HAS_GCC_BUG_85180),y)
+PRBOOM_CFLAGS += -O0
+endif
+
+PRBOOM_CONF_ENV += CFLAGS="$(PRBOOM_CFLAGS)"
 
 ifeq ($(BR2_PACKAGE_LIBPNG),y)
 PRBOOM_DEPENDENCIES += libpng