# Macro to test for OS X Frameworks.
# Taken from: http://lists.apple.com/archives/unix-porting/2009/Jan/msg00029.html
# Retrieved on 24-10-2013.
# Original Author: Peter O'Gorman.
#
# Example Usage:
#   AX_CHECK_FRAMEWORK([IOKit])
# Defines:
#   HAVE_FRAMEWORK_IOKIT in config.h
# And substitutes in your Makefiles.
#   FRAMEWORK_IOKIT="-framework IOKit"

m4_defun([AX_CHECK_FRAMEWORK],
  [AC_CACHE_CHECK([if -framework ]$1[ works],[my_cv_framework_]$1,
     [save_LIBS="$LIBS"
     LIBS="$LIBS -framework ]$1["
     AC_LINK_IFELSE([AC_LANG_PROGRAM([],[])],
             [my_cv_framework_]$1[=yes],
            [my_cv_framework_]$1[=no])
    ])
   LIBS="$save_LIBS"
   if test "$my_cv_framework_]$1["="yes"; then
       AC_DEFINE(AS_TR_CPP([HAVE_FRAMEWORK_]$1),1,
            [Define if you have the ] $1 [ framework])
   AS_TR_CPP([FRAMEWORK_]$1)="-framework ]$1["
   AC_SUBST([FRAMEWORK_]AS_TR_CPP($1))
   fi])