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	string. git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@182521 65c4cc65-6c06-0410-ace0-fbb531ad65f3
		
			
				
	
	
		
			94 lines
		
	
	
		
			2.9 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
			
		
		
	
	
			94 lines
		
	
	
		
			2.9 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
# Helper function to setup variables for a package.
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# $1 -> the package name. Used in configure.ac and also as a prefix
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#	for the variables ($1_DIR, $1_INCLUDE, $1_LIB) in makeopts
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# $3 ->	option name, used in --with-$3 or --without-$3 when calling configure.
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# $2 and $4 are just text describing the package (short and long form)
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# AST_EXT_LIB_SETUP([package], [short description], [configure option name], [long description])
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AC_DEFUN([AST_EXT_LIB_SETUP],
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[
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    $1_DESCRIP="$2"
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    $1_OPTION="$3"
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    PBX_$1=0
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    AC_ARG_WITH([$3], AC_HELP_STRING([--with-$3=PATH],[use $2 files in PATH$4]),
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    [
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	case ${withval} in
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	n|no)
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	USE_$1=no
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	# -1 is a magic value used by menuselect to know that the package
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	# was disabled, other than 'not found'
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	PBX_$1=-1
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	;;
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	y|ye|yes)
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	ac_mandatory_list="${ac_mandatory_list} $1"
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	;;
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	*)
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	$1_DIR="${withval}"
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	ac_mandatory_list="${ac_mandatory_list} $1"
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	;;
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	esac
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    ])
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    AC_SUBST([$1_LIB])
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    AC_SUBST([$1_INCLUDE])
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    AC_SUBST([$1_DIR])
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    AC_SUBST([PBX_$1])
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])
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# Check for existence of a given package ($1), either looking up a function
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# in a library, or, if no function is supplied, only check for the
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# existence of the header files.
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# AST_EXT_LIB_CHECK([package], [library], [function], [header],
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#	 [extra libs], [extra cflags], [version])
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AC_DEFUN([AST_EXT_LIB_CHECK],
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[
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if test "x${PBX_$1}" != "x1" -a "${USE_$1}" != "no"; then
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   pbxlibdir=""
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   # if --with-$1=DIR has been specified, use it.
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   if test "x${$1_DIR}" != "x"; then
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      if test -d ${$1_DIR}/lib; then
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      	 pbxlibdir="-L${$1_DIR}/lib"
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      else
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      	 pbxlibdir="-L${$1_DIR}"
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      fi
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   fi
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   pbxfuncname="$3"
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   if test "x${pbxfuncname}" = "x" ; then   # empty lib, assume only headers
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      AST_$1_FOUND=yes
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   else
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      AC_CHECK_LIB([$2], [${pbxfuncname}], [AST_$1_FOUND=yes], [AST_$1_FOUND=no], ${pbxlibdir} $5)
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   fi
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   # now check for the header.
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   if test "${AST_$1_FOUND}" = "yes"; then
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      $1_LIB="${pbxlibdir} -l$2 $5"
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      # if --with-$1=DIR has been specified, use it.
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      if test "x${$1_DIR}" != "x"; then
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	 $1_INCLUDE="-I${$1_DIR}/include"
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      fi
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      $1_INCLUDE="${$1_INCLUDE} $6"
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      if test "x$4" = "x" ; then	# no header, assume found
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         $1_HEADER_FOUND="1"
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      else				# check for the header
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         saved_cppflags="${CPPFLAGS}"
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         CPPFLAGS="${CPPFLAGS} ${$1_INCLUDE}"
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	 AC_CHECK_HEADER([$4], [$1_HEADER_FOUND=1], [$1_HEADER_FOUND=0])
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         CPPFLAGS="${saved_cppflags}"
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      fi
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      if test "x${$1_HEADER_FOUND}" = "x0" ; then
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         $1_LIB=""
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         $1_INCLUDE=""
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      else
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         if test "x${pbxfuncname}" = "x" ; then		# only checking headers -> no library
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	    $1_LIB=""
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	 fi
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         PBX_$1=1
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         # XXX don't know how to evaluate the description (third argument) in AC_DEFINE_UNQUOTED
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         AC_DEFINE_UNQUOTED([HAVE_$1], 1, [Define this to indicate the ${$1_DESCRIP} library])
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	 AC_DEFINE_UNQUOTED([HAVE_$1_VERSION], [$7], [Define to indicate the ${$1_DESCRIP} library version])
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      fi
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   fi
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fi
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])
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