c - Makefile : Parameterize so that it compiles the highest numbered file -

c - Makefile : Parameterize so that it compiles the highest numbered file -

im building create file, , want tolerant of fact have multiple main methods, , perchance consider file highest alphabetical value entrypoint.

is there way or similar?

there few ways that, depending on level want or need create decision. here 3 know of:

find out build before building calling $(shell find | grep) or $(shell grep -r ...) identify files built (inclusion) or filter-out files not built (exclusion). use objdump analyze object files , filter-out have main() function except lastly one. utilize $(shell sort ...) helper or $(sort ...). if know objects can contain make, , using compiler / linker combination allows weak declarations can shadowed away, utilize $(sort) on list of objects, $(lastword) 1 "highest name", , set first (or last, depending on how linker resolves) in list of linker files.

c function make main