CODEWITHSUNDEEP
cgccmakefile
artsin
artsin

Reputation: 1494

Exclusion of "lib" prefix in flags for gcc compiler

Guys gave me their library: libA.a and libB.a. Also, I have header files: header_A.h and header_B.h. I need to add them to my Makefile. I've added this:

INCLUDES = -I/home/me/lib_from_guys/include
LIBS = -L/home/me/lib_from_guys/libraries
CFLAGS = -llibA -llibB

hello:
    $(CC) $(INCLUDES) $(LIBS) $(CFLAGS) $< -o $@

BUT! compiler said, that it could not find libA and libB. I've changed on this:

CFLAGS = -lA -lB

And now it works. Is it necessary always supress "lib" prefix in lib? Or how it knows names of my libraries?

Upvotes: 0

Views: 99

Answers (1)

David Hoelzer
David Hoelzer

Reputation: 16331

This has been a standard behavior in C for many, many years.

The -lX option will automatically prompt the linker to look for something named libX, not X. So, yes, you always exclude the lib portion of the name to -l.

Upvotes: 3

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