Make sure program names are encoded before using them to invoke subprocesses.

 src/callproc.c (Fcall_process): Make sure program name in PATH and
 new_argv[0] is encoded, if needed.  Otherwise, un-encoded string
 is passed to exec/spawnve, which fails unless the file-name
 encoding is UTF-8.

1 files changed, 27 insertions, 21 deletions

diff --git a/src/callproc.c b/src/callproc.c
index d152da19f7b..c4177d5044c 100644
--- a/src/callproc.c
+++ b/src/callproc.c
@@ -416,28 +416,34 @@ usage: (call-process PROGRAM &optional INFILE BUFFER DISPLAY &rest ARGS)  */)
     path = Fsubstring (path, make_number (2), Qnil);
 
   new_argv = SAFE_ALLOCA ((nargs > 4 ? nargs - 2 : 2) * sizeof *new_argv);
-  if (nargs > 4)
-    {
-      ptrdiff_t i;
-      struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5;
 
-      GCPRO5 (infile, buffer, current_dir, path, error_file);
-      argument_coding.dst_multibyte = 0;
-      for (i = 4; i < nargs; i++)
-        {
-          argument_coding.src_multibyte = STRING_MULTIBYTE (args[i]);
-          if (CODING_REQUIRE_ENCODING (&argument_coding))
-            /* We must encode this argument.  */
-            args[i] = encode_coding_string (&argument_coding, args[i], 1);
-        }
-      UNGCPRO;
-      for (i = 4; i < nargs; i++)
-        new_argv[i - 3] = SDATA (args[i]);
-      new_argv[i - 3] = 0;
-    }
-  else
-    new_argv[1] = 0;
-  new_argv[0] = SDATA (path);
+  {
+    struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5;
+
+    GCPRO5 (infile, buffer, current_dir, path, error_file);
+    if (nargs > 4)
+      {
+        ptrdiff_t i;
+
+        argument_coding.dst_multibyte = 0;
+        for (i = 4; i < nargs; i++)
+          {
+            argument_coding.src_multibyte = STRING_MULTIBYTE (args[i]);
+            if (CODING_REQUIRE_ENCODING (&argument_coding))
+              /* We must encode this argument.  */
+              args[i] = encode_coding_string (&argument_coding, args[i], 1);
+          }
+        for (i = 4; i < nargs; i++)
+          new_argv[i - 3] = SDATA (args[i]);
+        new_argv[i - 3] = 0;
+      }
+    else
+      new_argv[1] = 0;
+    if (STRING_MULTIBYTE (path))
+      path = ENCODE_FILE (path);
+    new_argv[0] = SDATA (path);
+    UNGCPRO;
+  }
 
 #ifdef MSDOS /* MW, July 1993 */