-# ------------------------------------------------------------------------------
-have_xz=no
-AC_ARG_ENABLE(xz, AS_HELP_STRING([--disable-xz], [Disable optional XZ support]))
-if test "x$enable_xz" != "xno"; then
- PKG_CHECK_MODULES(XZ, [ liblzma ],
- [AC_DEFINE(HAVE_XZ, 1, [Define if XZ is available]) have_xz=yes], have_xz=no)
- if test "x$have_xz" = xno -a "x$enable_xz" = xyes; then
- AC_MSG_ERROR([*** XZ support requested but libraries not found])
- fi
-fi
-AM_CONDITIONAL(HAVE_XZ, [test "$have_xz" = "yes"])
-
-# ------------------------------------------------------------------------------
-have_zlib=no
-AC_ARG_ENABLE(zlib, AS_HELP_STRING([--disable-zlib], [Disable optional ZLIB support]))
-if test "x$enable_zlib" != "xno"; then
- PKG_CHECK_MODULES(ZLIB, [ zlib ],
- [AC_DEFINE(HAVE_ZLIB, 1, [Define if ZLIB is available]) have_zlib=yes], have_zlib=no)
- if test "x$have_zlib" = xno -a "x$enable_zlib" = xyes; then
- AC_MSG_ERROR([*** ZLIB support requested but libraries not found])
- fi
-fi
-AM_CONDITIONAL(HAVE_ZLIB, [test "$have_zlib" = "yes"])
-
-# ------------------------------------------------------------------------------
-have_bzip2=no
-AC_ARG_ENABLE(bzip2, AS_HELP_STRING([--enable-bzip2], [Disable optional BZIP2 support]))
-AS_IF([test "x$enable_bzip2" != "xno"], [
- AC_CHECK_HEADERS(bzlib.h,
- [AC_DEFINE(HAVE_BZIP2, 1, [Define in BZIP2 is available])
- have_bzip2=yes],
- [AS_IF([test "x$have_bzip2" = xyes], [AC_MSG_ERROR([*** BZIP2 support requested but headers not found])])
- ])
-])
-AM_CONDITIONAL(HAVE_BZIP2, [test "$have_bzip2" = "yes"])
-
-# ------------------------------------------------------------------------------
-have_lz4=no
-AC_ARG_ENABLE(lz4, AS_HELP_STRING([--enable-lz4], [Enable optional LZ4 support]))
-AS_IF([test "x$enable_lz4" = "xyes"], [
- AC_CHECK_HEADERS(lz4.h,
- [AC_DEFINE(HAVE_LZ4, 1, [Define in LZ4 is available]) have_lz4=yes],
- [AC_MSG_ERROR([*** LZ4 support requested but headers not found])])
-])
-AM_CONDITIONAL(HAVE_LZ4, [test "$have_lz4" = "yes"])
-
-AM_CONDITIONAL(HAVE_COMPRESSION, [test "$have_xz" = "yes" -o "$have_lz4" = "yes"])
-