Makefile

How to debug Makefile

Put below in Makefile

print-%:

    @echo '$*=$($*)'

Trigger it by "print-xxx" as below

$ make print-TYPE_SUFFIX

Or

Create file "helper.mak" below and issue cmd as stated

# For Makefile Debug

# At Cmdline, Type "gmake -f Makefile -f helper.mak print-{VARIABLE}", Where {VARIABLE} Is The Makefile Variable

#

# e.g.

#   gmake -f Makefile -f helper.mak print-CFLAGS

#

#   CFLAGS=-g -O2 -c

#   CFLAGS origin is file

print-%:

    @echo $*=$($*)

    @echo $*\'s origin is $(origin $*)