Do transitive dependencies reduce number of jobs that can be compiled in
parallel?
If I have two libraries A and B, with an executable C, whose
dependencies are described by:
add_library(A ${A_SRC})
add_library(B ${B_SRC})
target_link_libraries(B A)
add_executable(C ${C_SRC})
target_link_libraries(C B)
I understand that when *linking* C, the transitive dependency A will be
added. However, if I build C in parallel "make -j N", will CMake build
libraries A and B simultaneously, or fully compile and link A before
starting compilation of B? I.e. just because the link steps are serial
dependencies, are the compilation steps? Would it be faster to do:
add_library(A ${A_SRC})
add_library(B ${B_SRC})
add_executable(C ${C_SRC})
target_link_libraries(C B A)
Thanks.
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