meson: Make the zlib dependency a disabler when not found

This disables targets that require zlib when it is not found.
Currently, targets requiring zlib are built when it is not found.
Fixes #2930.

Signed-off-by: Jordan Williams <jordan@jwillikers.com>

diff --git a/meson.build b/meson.build
index 21822f0bd426ea0e863edaf74d5077a09fcd385d..20c19b9a826272ad86072abcd62d468fe775fc4a 100644 (file)
--- a/meson.build
+++ b/meson.build
@@ -292,6 +292,7 @@ endforeach
 
 lib_z = dependency(
   'zlib',
+  disabler : true,
   required : get_option('zlib'))
 
 lib_readline = dependency(