We're about to use a portion of the 4.0 API.
Reject a system library version prior to that.

Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/meson.build b/meson.build
index 4c92b43fe5..114b136129 100644
--- a/meson.build
+++ b/meson.build
@@ -613,7 +613,7 @@ if capstone_opt == 'no'
   capstone_opt = false
 elif capstone_opt in ['yes', 'auto', 'system']
   have_internal = fs.exists('capstone/Makefile')
-  capstone = dependency('capstone', static: enable_static,
+  capstone = dependency('capstone', version: '>=4.0', static: enable_static,
                         required: capstone_opt == 'system' or
                                   capstone_opt == 'yes' and not have_internal)
   if capstone.found()
-- 
2.25.1