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authorSlávek Banko <slavek.banko@axis.cz>2020-12-22 20:23:50 +0100
committerSlávek Banko <slavek.banko@axis.cz>2021-01-13 11:27:08 +0100
commit8972568773f1b07092d136c94a7d173cb3c17f2c (patch)
treee7143f1fcf7fe2046243d1d5483383a53bc1b5bb
parent1066eb1afd55dbc25dc8883ecf1eb9462cd0f65a (diff)
downloadtde-cmake-8972568773f1b07092d136c94a7d173cb3c17f2c.tar.gz
tde-cmake-8972568773f1b07092d136c94a7d173cb3c17f2c.zip
Set compiler flags useful for reproducible building.
Signed-off-by: Slávek Banko <slavek.banko@axis.cz> (cherry picked from commit b2b9e890528f27daeb577983e1ed4fe2ecf8f852)
-rw-r--r--modules/TDEMacros.cmake16
1 files changed, 16 insertions, 0 deletions
diff --git a/modules/TDEMacros.cmake b/modules/TDEMacros.cmake
index b16c38d..aab78d4 100644
--- a/modules/TDEMacros.cmake
+++ b/modules/TDEMacros.cmake
@@ -2503,6 +2503,22 @@ macro( tde_setup_architecture_flags )
set( TDE_PIE_CFLAGS -fPIE )
set( TDE_PIE_LDFLAGS -pie )
endif( HAVE_PIE_SUPPORT )
+
+ set( _reproducible_cxxflags
+ "-fdebug-prefix-map=${CMAKE_SOURCE_DIR}=."
+ "-fmacro-prefix-map=${CMAKE_SOURCE_DIR}=."
+ )
+ foreach( _flag ${_reproducible_cxxflags} )
+ string( REGEX REPLACE "=.*" "" _flag_name "${_flag}" )
+ string( REGEX REPLACE "[^a-zA-Z0-9]+" "_" _flag_var "CXXFLAG_${_flag_name}" )
+ if( NOT "${CMAKE_CXX_FLAGS}" MATCHES "(^| )${_flag_name}" )
+ check_cxx_compiler_flag( "${_flag}" ${_flag_var} )
+ if( ${_flag_var} )
+ set( CMAKE_C_FLAGS "${CMAKE_CXX_FLAGS} ${_flag}" )
+ set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${_flag}" )
+ endif()
+ endif()
+ endforeach()
endif( )
endmacro( )