makefile - Automatic variables in the tests of conditionals: GNU Make -


I stuck here. We have two makefiles (a requirement that I can not change)

  • defs.mk: Include source file name and amp; For example: 
 C_FILES = c / src / main / rule_main.c rule_main_OPTIONAL_FLAG = + w127 rule_main_DEBUG = true
    for their additional compilation flags (different standard flags)
  • Makefile : There are rules in it.

Now I would like to add a feature so that I am in file specific flags (and optional file specific debug flag): 

  CUSTOM_DEBUG_FLAG = $ ($ (Basename $ (notdir $ @) _ some endif debug) ## defs.mk ifeq to rule_main_DEBUG macro ($ (CUSTOM_DEBUG_FLAG), TRUE)

Afterwards not supported in conditional is not working. There is no other way to do this

I usually take advantage of:? 

  SPECIFIC_FLAGS = $ ($ if (findstring $ (CUSTOM_FLAG), correct), $ (IF_TRUE), $ (IF_FALSE))

or your own Use define function: 

  debug_defs = $ ($ if (findstring $ (1), file1 file2), - DDEBUG, -DNDEBUG% o:. Src / $$ (% notdir) c @cc -c $ (CFLAGS) $ (call debug_defs, $ (nodir $ (basename $ @))

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