meson: use signed chars

This matches what the autotools build is doing.
Also see https://github.com/util-linux/util-linux/pull/2768 .

Signed-off-by: Thomas Weißschuh <thomas@t-8ch.de>

diff --git a/meson.build b/meson.build
index 688ea9120210286b9010ea8b15b39ebdb13aa6d5..0e386dd1a90f33e0cd88c8dffc4908c790efb2f9 100644 (file)
--- a/meson.build
+++ b/meson.build
@@ -39,7 +39,7 @@ bash_completion = dependency('bash-completion', required : get_option('build-bas
 
 vendordir = get_option('vendordir')
 
-add_project_arguments('-D_GNU_SOURCE', language : 'c')
+add_project_arguments('-D_GNU_SOURCE', '-fsigned-char', language : 'c')
 
 cc = meson.get_compiler('c')