CODEWITHSUNDEEP
c++cmakefile
Chris Vilches
Chris Vilches

Reputation: 1187

How to avoid rebuilding in targets with different names in Windows and Linux?

I have this in my makefile

myfile: $(OBJECTS)
    g++ -o $@ $^

This should convert into something like

g++ -o myfile XXX.o YYY.o ZZZ.o

But this generates different output in Windows and Linux

Windows: myfile.exe

Linux: myfile.out

So when I run make again, it will rebuild (even if there's no changes), because the target name is myfile and not myfile.exe or myfile.out. Of course I tried using myfile.exe as target name on Windows, and it shows the up to date or nothing to do message I want.

How can I solve this problem so that Make finds myfile.exe|out and decides to not rebuild it?

Upvotes: 1

Views: 67

Answers (1)

user657267
user657267

Reputation: 21040

GCC on Windows will automatically append .exe to the output filename when linking, try something like

ifneq ($(findstring mingw,$(MAKE_HOST)),)
exe := .exe
endif

myfile$(exe): $(OBJECTS)
    g++ -o $@ $^

Or as the comments say just use .exe for all platforms.

Upvotes: 3

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