dnl CF_WITH_ZLIB version: 6 updated: 2024/09/10 19:19:44
dnl ------------
dnl check for libz aka "zlib"
dnl
dnl $1 if present is yes/no, e.g., from a --with-zlib option.
AC_DEFUN([CF_WITH_ZLIB],[
  ifelse([$1],,,[CF_ADD_OPTIONAL_PATH($1, [zlib])])

  CF_FIND_LINKAGE([
#include <zlib.h>
],[
	gzopen("name","mode")
],z,,,zlib)

AC_CHECK_FUNCS( \
	zError \
)
])dnl
