Use installed libusual with antimake.

Install libusual and link against it.

Build libusual

$ git clone git://github.com/libusual/libusual.git libusual
Cloning into 'libusual'...
done.
$ cd libusual
$ ./autogen.sh
[...]
$ ./configure --disable-shared --prefix=`pwd`/../inst
[...]
$ make
[...]
$ make install
[...]
$ cd ..

Build our own code

Now we prepare our own code.

First, this is the source file:

File: prog.c

#include <stdio.h>
#include <string.h>
#include <usual/hashing/crc32.h>

int main(void)
{
        const char *data = "CECSFXX";
        uint32_t crc;

        crc = calc_crc32(data, strlen(data), 0);
        printf("crc: %08x\n", crc);
        return 0;
}

Here is corresponding Makefile:

File: Makefile

# temo hacks to support local install, not needed otherwise
PKG_CONFIG = PKG_CONFIG_PATH=$(CURDIR)/inst/lib/pkgconfig pkg-config

# use pkg-config to get libusual info
USUAL_CPPFLAGS = $(shell $(PKG_CONFIG) libusual --cflags)
USUAL_LDFLAGS = $(shell $(PKG_CONFIG) libusual --libs-only-L)
USUAL_LIBS = $(shell $(PKG_CONFIG) libusual --libs-only-l)

# Generic Antimake
bin_PROGRAMS = prog
prog_SOURCES = prog.c
prog_CPPFLAGS = $(USUAL_CPPFLAGS)
prog_LDFLAGS = $(USUAL_LDFLAGS)
prog_LDADD = $(USUAL_LIBS)

# use installed Antimake
ANTIMAKE = $(shell $(PKG_CONFIG) libusual --variable=antimake)
include $(ANTIMAKE)

Build the project

$ make
     CC       prog.c
     CCLD     prog
$ ls
Makefile  inst  libusual  prog  prog.c
$ ./prog
crc: 12345678

Done!