AX_CHECK_LIBRARY(VARIABLE-PREFIX, HEADER-FILE, LIBRARY-FILE, [ACTION-IF-FOUND], [ACTION-IF-NOT_FOUND])
Provides a generic test for a given library, similar in concept to the PKG_CHECK_MODULES macro used by pkg-config.
Most simplest libraries can be checked against simply through the presence of a header file and a library to link to. This macro allows to wrap around the test so that it doesn’t have to be recreated each time.
Rather than define –with-$LIBRARY arguments, it uses variables in the same way that PKG_CHECK_MODULES does. It doesn’t, though, use the same names, since you shouldn’t provide a value for LIBS or CFLAGS but rather for LDFLAGS and CPPFLAGS, to tell the linker and compiler where to find libraries and headers respectively.
If the library is find, HAVE_PREFIX is defined, and in all cases PREFIX_LDFLAGS and PREFIX_CPPFLAGS are substituted.
AX_CHECK_LIBRARY([LIBEVENT], [event.h], [event], , [AC_MSG_ERROR([Unable to find libevent])])
Download the latest version of ax_check_library.m4 or browse the macro’s revision history.
Copyright © 2010 Diego Elio Petteno‘ email@example.com
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