[Buildroot] [git commit] package/Makefile.in: introduce TARGET_NLS_{DEPENDENCIES, LIBS}

commit: https://git.buildroot.net/buildroot/commit/?id=a682b02749b5b6fc871ccf0010498ad6777b3f8a
branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/master

All packages that can use NLS support will have to depend on
host-gettext, as it provides the tools for generating .mo files from
.po files.

In addition, all packages may need to depend on gettext (and link with
-lintl) if the full-blown gettext implementation is provided by
libintl and not by the C library.

In order to avoid repeating such conditions everywhere, this commit
introduces two variables:

 - TARGET_NLS_DEPENDENCIES, which packages that may use NLS support
   should unconditionally add to their <pkg>_DEPENDENCIES variable.

 - TARGET_NLS_LIBS, which packages can use to pass through LIBS or
   LDFLAGS when the package build system needs help to realize that it
   should link against libintl.

Signed-off-by: Thomas Petazzoni <redacted>
Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <redacted>
Signed-off-by: Thomas Petazzoni <redacted>
---
 package/Makefile.in | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/package/Makefile.in b/package/Makefile.in
index 462b7ca..d30da3f 100644
--- a/package/Makefile.in
+++ b/package/Makefile.in

@@ -361,6 +361,11 @@ TARGET_CONFIGURE_ARGS = \
 
 ifeq ($(BR2_SYSTEM_ENABLE_NLS),y)
 NLS_OPTS = --enable-nls
+TARGET_NLS_DEPENDENCIES = host-gettext
+ifeq ($(BR2_PACKAGE_GETTEXT_PROVIDES_LIBINTL),y)
+TARGET_NLS_DEPENDENCIES += gettext
+TARGET_NLS_LIBS += -lintl
+endif
 else
 NLS_OPTS = --disable-nls
 endif