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orfeomorello/how-to-compile-raspberry.txt

Created October 20, 2017 15:35
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Best Compilation Flags for Raspberry
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how-to-compile-raspberry.txt
If you have Raspberry 2 (V1.1): Broadcom BCM2836 ARMv7 Quad Core 32bit Processor, running at 900MHz.
./configure CFLAGS="-Ofast -mtune=cortex-a7 -mcpu=cortex-a7 -mfpu=neon-vfpv4 -mfloat-abi=hard -ffast-math" CXXFLAGS="-Ofast -mtune=cortex-a7 -mcpu=cortex-a7 -mfpu=neon-vfpv4 -mfloat-abi=hard -ffast-math"
If you have Raspberry 3
./configure CFLAGS="-Ofast -mtune=cortex-a53 -mcpu=cortex-a53 -mfloat-abi=hard -mfpu=neon-fp-armv8 -mneon-for-64bits -ffast-math" CXXFLAGS="-Ofast -mtune=cortex-a53 -mcpu=cortex-a53 -mfloat-abi=hard -mfpu=neon-fp-armv8 -mneon-for-64bits -ffast-math"
Launch the "make" command to force the code to compile always
make --always-make
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