[PATCH grout] api: fix external clients build

[Andrei Rybchenko]

gr_string.h is now used in API headers. So, it must be installed and
provided in grout-headers package.

Fixes: 88c63f8871f7 ("api: replace direct memccpy with gr_strcpy for safe string copy")
Signed-off-by: Andrei Rybchenko <rybchenko.andrei at gmail.com>
---
 api/meson.build | 1 +
 1 file changed, 1 insertion(+)

diff --git a/api/meson.build b/api/meson.build
index ce8340c8..f734a65b 100644
--- a/api/meson.build
+++ b/api/meson.build
@@ -10,6 +10,7 @@ api_headers += files(
   'gr_macro.h',
   'gr_net_compat.h',
   'gr_net_types.h',
+  'gr_string.h',
 )
 api_headers += configure_file(
   output: 'gr_version.h',
-- 
2.47.3