When configuring CMake builds, carefully select compiler and linker flags that optimize for performance while maintaining cross-platform compatibility. Performance-oriented flags can significantly impact runtime speed, binary size, and resource utilization, but must be applied conditionally based on the target platform and compiler.
When configuring CMake builds, carefully select compiler and linker flags that optimize for performance while maintaining cross-platform compatibility. Performance-oriented flags can significantly impact runtime speed, binary size, and resource utilization, but must be applied conditionally based on the target platform and compiler.
Key practices:
DYNAMIC_EXECUTION=0
may slow down WebAssembly bindings)--gc-sections
for GCC/Clang vs --dead_strip
for AppleClang)CMAKE_POSITION_INDEPENDENT_CODE ON
for better code generationExample of conditional linker optimization:
target_link_options(yoga PRIVATE
# Discard unused sections
$<$<CONFIG:RELEASE>:$<$<CXX_COMPILER_ID:Clang,GNU>:-Wl,--gc-sections>>
$<$<CONFIG:RELEASE>:$<$<CXX_COMPILER_ID:AppleClang>:-Wl,-dead_strip>>)
This approach ensures optimal performance across different build environments while avoiding platform-specific build failures.
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