27; include) for compatibility with other makes, e.g., solaris
Then you won't get to hear from gnu make even if file.mk didn't exist.
Another way to accomplish in gnu make, an include by first ensuring the
existence is:
ifneq ($(strip $(wildcard file.mk)),)include file.mkendif
HTH
-Rak
Let me quote from the GNU make manual on the "eval function". It says:
The argument to the eval function is expanded, then the results of that
expansion are parsed as makefile syntax.
Now in this case, of $(eval include /path/to/file.mk)the two arguments to eval
are the keyword include & the ful
