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CMake: Allow to pass CFLAGS into a build dependency, when using a emb… #1985

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CMake: Allow to pass CFLAGS into a build dependency, when using a emb… #1985

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11 changes: 11 additions & 0 deletions CMake/Utilities.cmake
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Original file line number Diff line number Diff line change
Expand Up @@ -43,6 +43,14 @@ function(build_dependency lib_name)
return()
endif()

message(STATUS "CFLAGS environment variable before setting to CMAKE_C_FLAGS: $ENV{CFLAGS}")
# save original cflags to reset after build is finished for this build dependency
set(ORIG_CFLAGS $ENV{CFLAGS})

# set CFLAGS env variable since this is the only way to pass CFLAGS into a build dependency if a cross compile sdk is used (eg. Yocto)
set(ENV{CFLAGS} ${CMAKE_C_FLAGS})
message(STATUS "CFLAGS after setting to CMAKE_C_FLAGS: $ENV{CFLAGS}")

# anything after lib_name(${ARGN}) are assumed to be arguments passed over to
# library building cmake.
set(build_args ${ARGN})
Expand Down Expand Up @@ -78,6 +86,9 @@ function(build_dependency lib_name)
endif()

file(REMOVE_RECURSE ${OPEN_SRC_INSTALL_PREFIX}/lib${lib_name})

set(ENV{CFLAGS} ${ORIG_CFLAGS})
message(STATUS "CFLAGS after resetting to original CFLAGS: $ENV{CFLAGS}")
endfunction()

function(enableSanitizer SANITIZER)
Expand Down
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