Set a default locale on Android

* doc/emacs/android.texi (Android Environment): Revise for
change.

* src/android.c (initEmacs): Set LANG to either en_US.utf8 or C,
subject to whether the system is newer than Android
5.0 (inclusive).

1 files changed, 12 insertions, 0 deletions

diff --git a/src/android.c b/src/android.c
index 7ca5eab817c..51622f16230 100644
--- a/src/android.c
+++ b/src/android.c
@@ -1455,6 +1455,18 @@ NATIVE_NAME (setEmacsParams) (JNIEnv *env, jobject object,
      the possibility of Java locating libemacs later.  */
   setenv ("EMACS_LD_LIBRARY_PATH", android_lib_dir, 1);
 
+  /* If the system is Android 5.0 or later, set LANG to en_US.utf8,
+     which is understood by the C library.  In other instances set it
+     to C, a meaningless value, for good measure.  */
+
+  if (emacs_service_object)
+    {
+      if (api_level >= 21)
+        setenv ("LANG", "en_US.utf8", 1);
+      else
+        setenv ("LANG", "C", 1);
+    }
+
   /* Make a reference to the Emacs service.  */
 
   if (emacs_service_object)