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105 lines
3.4 KiB
105 lines
3.4 KiB
# 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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AH_TEMPLATE(m4_bpatsubst([[HAVE_$1]], [(.*)]), [Define to 1 if you have the $2 library.])
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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_$1=1
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if test "x${$1_OPTION}" = "x"; then
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dnl Ensure that we have an autoheader, when AST_EXT_LIB_SETUP was
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dnl not called. Note that we cannot use shell substitution in the
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dnl description, because the shell is never invoked when rendering
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dnl the autoheader. Only m4 substitutions will expand correctly.
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AC_DEFINE_UNQUOTED([HAVE_$1], 1, [Define to 1 to indicate $1 functionality.])
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AC_DEFINE_UNQUOTED([HAVE_$1_VERSION], [$7], [Define to indicate the $1 library version])
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else
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cat >>confdefs.h <<_ACEOF
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[@%:@define] HAVE_$1 1
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[@%:@define] HAVE_$1_VERSION $7
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_ACEOF
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fi
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fi
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fi
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fi
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])
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