| dnl A function to check for zlib availability. zlib is used by default |
| dnl unless the user configured with --disable-nls. |
| |
| AC_DEFUN([AM_ZLIB], |
| [ |
| # See if the user specified whether he wants zlib support or not. |
| AC_ARG_WITH(zlib, |
| [ --with-zlib include zlib support (auto/yes/no) [default=auto]], |
| [], [with_zlib=auto]) |
| |
| if test "$with_zlib" != "no"; then |
| AC_SEARCH_LIBS(zlibVersion, z, [AC_CHECK_HEADERS(zlib.h)]) |
| if test "$with_zlib" = "yes" -a "$ac_cv_header_zlib_h" != "yes"; then |
| AC_MSG_ERROR([zlib (libz) library was explicitly requested but not found]) |
| fi |
| fi |
| ]) |
| |