How to check if a file exists in a makefile

Question

I have a makefile template to compile a single DLL (for a plugin system). The makefile of the user looks like this:

EXTRA_SRCS=file1 file2
include makefile.in
         


        

Answer 1

Use the "wildcard" function:

$(wildcard *.h)

EDIT: in order to match a specific list, do

$(wildcard $(HEADER_FILES))

There is no need to use $(filter ...), the wildcard function automatically filters files which don't exist.