How to specify RPATH in a makefile?

Question

I\'m trying to specify rpath in my binary. My makefile looks like this-

CC=gcc 
CFLAGS=-Wall
LDFLAGS= -rpath=\'../libs/\'
main: main.c  
    gcc -o main ma         


        

Answer 1

If you set the variables, you should probably use them. It's silly not to, especially when make won't magically set those variables for you! :)

main: main.c
    $(CC) $(CFLAGS) $(LDFLAGS) -o main main.c

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Another problem is LDFLAGS, it should be

LDFLAGS="-Wl,-rpath,../libs/"

The usual gcc switch for passing options to linker is -Wl,, and it is needed because gcc itself may not understand the bare -rpath linker option. While some builds of various versions of gcc accept -rpath, I have never seen it documented in gcc man pages or info pages. For better portability, -Wl,-rpath should be preferred.