makefile - use of PARALLEL in make -

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i have been working on makefiles , trying reduce compilation time. structure of code consists of various sub directories each having own makefile. subdirectories in main directory seem independent whenever run make in of subdirectories, runs fine , shows no error. thus, want run sub-make subdirectories in parallel. possible> , if yes, how?

thank in advance

here crude effective method:

subdirs = /something /something/else /another  .phony: $(subdirs)  all: $(subdirs)  $(subdirs):     @$(make) -s -c $@

run make -j.


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