On Fri, Sep 22, 2017 at 3:57 PM, Uwe Kleine-König <u...@kleine-koenig.org> wrote: >... > For armhf I need to define __ARM_PCS_VFP but that must be absent on armel.
Forgive my ignorance... If the compiler was built for the native platform, then wouldn't the compiler and preprocessor definitions tell you? I guess I expect the compiler to tell the truth about its native configuration. For example, below is from a BananaPi, and it was built for a platform that uses hard floats. Jeff $ echo '#include <stdlib.h>' | gcc -dumpmachine arm-linux-gnueabihf $ echo '#include <stdlib.h>' | gcc -dM -E - | egrep -i 'arm|hard|hf|float' | sort #define __ARMEL__ 1 #define __ARM_32BIT_STATE 1 #define __ARM_ARCH 7 #define __ARM_ARCH_7A__ 1 #define __ARM_ARCH_ISA_ARM 1 #define __ARM_ARCH_ISA_THUMB 2 #define __ARM_ARCH_PROFILE 65 #define __ARM_EABI__ 1 #define __ARM_FEATURE_CLZ 1 #define __ARM_FEATURE_DSP 1 #define __ARM_FEATURE_LDREX 15 #define __ARM_FEATURE_QBIT 1 #define __ARM_FEATURE_SAT 1 #define __ARM_FEATURE_SIMD32 1 #define __ARM_FEATURE_UNALIGNED 1 #define __ARM_FP 12 #define __ARM_NEON_FP 4 #define __ARM_PCS_VFP 1 #define __ARM_SIZEOF_MINIMAL_ENUM 4 #define __ARM_SIZEOF_WCHAR_T 32 #define __FLOAT_WORD_ORDER __BYTE_ORDER #define __FLOAT_WORD_ORDER__ __ORDER_LITTLE_ENDIAN__ #define __SIZEOF_FLOAT__ 4 #define __arm__ 1 #define __stub_chflags #define __stub_fchflags