CODEWITHSUNDEEP
cmakefilecompiler-errors
waffles
waffles

Reputation: 91

Makefile with multiple main functions

all: program1 program2

program1: StringListDemo.o
    gcc -Wall -std=c11 -Iinclude src/StringListDemo.c src/LinkedListAPI.c -o program1

program2: StructListDemo.o
    gcc -Wall -std=c11 -Iinclude src/StructListDemo.c src/LinkedListAPI.c -o program2

Trying to compile folder with two files with main functions but keep getting error.

make: *** No rule to make target `StringListDemo.o', needed by `program1'.  Stop.

Upvotes: 1

Views: 1235

Answers (1)

Ruslan Osmanov
Ruslan Osmanov

Reputation: 21492

Since you mention StringListDemo.o, but give no rule for it, make looks for an implicit rule that tells how to update it. In other words, make looks for StringListDemo.c file which apparently does not exist in the current directory. However, you also mention src/StringListDemo.c, and the program1 target apparently depends on it. So you should change StringListDemo.o in the prerequisite list to src/StringListDemo.o:

program1: src/StringListDemo.o

The same logic applies to program2.

If src/StringListDemo.c is supposed to be compiled with special options (different from defaults), then add the StringListDemo.o target explicitly, e.g.:

StringListDemo.o: src/StringListDemo.c
    gcc ...

Upvotes: 1

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