CODEWITHSUNDEEP
makefilegnu-make
Frank C.
Frank C.

Reputation: 8098

How to substitute a string in list from other lists where there is a match

Assume I have two source directories:

I create file list for srcdir0 and srcdir1

S0SRCS := $(wildcard $(srcdir0)/*.c)
S1SRCS := $(wildcard $(srcdir1)/*.c)

I'm trying to create a final list that has the base srcdir0 files but are substituted by srcdir1 files of the same name. In other words the srcdir1 files take precedence.

I'm thinking that the filter or filter-out functions may be my friend here but I'm not experienced enough to know better.

Upvotes: 0

Views: 49

Answers (1)

Vroomfondel
Vroomfondel

Reputation: 2898

I think it suffices to filter out the names from the S1 directory from the names of the S0:

S0NAMES := $(notdir $(S0SRCS))
S1NAMES := $(notdir $(S1SRCS))
FINAL-LIST := $(addprefix $(srcdir0)/,$(filter-out $(S1NAMES),$(S0NAMES))) $(S1SRCS)

Please test this first, I didn't have the opportunity to do so and wrote it just off the top of my head.

Upvotes: 3

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