%endif
########## compilation flags ##########
-Optflags: armv7l -O2 -g2 -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -Wformat-security -fmessage-length=0 -march=armv7-a -mtune=cortex-a8 -mlittle-endian -mfpu=neon -mfloat-abi=softfp -mthumb -Wp,-D__SOFTFP__ -Wl,-O1 -Wl,--hash-style=gnu -Wa,-mimplicit-it=thumb
-Optflags: aarch64 -O2 -g2 -feliminate-unused-debug-types -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector -Wformat -Wformat-security -fmessage-length=0 -march=armv8-a+fp+simd+crc+crypto -mtune=cortex-a57.cortex-a53
-Optflags: i686 -O2 -g2 -feliminate-unused-debug-types -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -Wformat-security -fmessage-length=0 -fdiagnostics-color=never -m32 -march=i686 -mtune=i686 -msse4.2 -mfpmath=sse -fasynchronous-unwind-tables -fno-omit-frame-pointer
-Optflags: x86_64 -O2 -g2 -feliminate-unused-debug-types -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -Wformat-security -fmessage-length=0 -fdiagnostics-color=never -m64 -march=corei7 -msse4.2 -mtune=corei7-avx -mfpmath=sse -fasynchronous-unwind-tables -fno-omit-frame-pointer
+%define __global_cflags -O2 -g2 -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector -Wformat-security -fmessage-length=0
+
+Optflags: armv7l %{__global_cflags} --param=ssp-buffer-size=4 -march=armv7-a -mtune=cortex-a8 -mlittle-endian -mfpu=neon -mfloat-abi=softfp -mthumb -Wp,-D__SOFTFP__ -Wl,-O1 -Wl,--hash-style=gnu -Wa,-mimplicit-it=thumb
+Optflags: aarch64 %{__global_cflags} -feliminate-unused-debug-types -Wformat -march=armv8-a+fp+simd+crc+crypto -mtune=cortex-a57.cortex-a53
+Optflags: i686 %{__global_cflags} -feliminate-unused-debug-types --param=ssp-buffer-size=4 -fdiagnostics-color=never -m32 -march=i686 -mtune=i686 -msse4.2 -mfpmath=sse -fasynchronous-unwind-tables -fno-omit-frame-pointer
+Optflags: x86_64 %{__global_cflags} -feliminate-unused-debug-types --param=ssp-buffer-size=4 -fdiagnostics-color=never -m64 -march=corei7 -msse4.2 -mtune=corei7-avx -mfpmath=sse -fasynchronous-unwind-tables -fno-omit-frame-pointer