use gnulib's progname module

* bootstrap.conf (gnulib_modules): Add progname.
* src/mkid.c: Include "progname.h".
(program_name): Remove declaration.
(main): Call set_program_name rather than setting program_name.
* src/fid.c: Likewise.
* src/fnid.c: Likewise.
* src/lid.c: Likewise.
* src/xtokid.c: Likewise.

1 files changed, 2 insertions, 5 deletions

diff --git a/src/lid.c b/src/lid.c
index a97529b..7db355e 100644
--- a/src/lid.c
+++ b/src/lid.c
@@ -43,6 +43,7 @@
 #include "idfile.h"
 #include "iduglobal.h"
 #include "lid.h"
+#include "progname.h"
 
 typedef void (*report_func_t) (char const *name, struct file_link **flinkv);
 typedef int (*query_func_t) (char const *arg, report_func_t);
@@ -153,10 +154,6 @@ static char *hits_buf_1;
 static char *hits_buf_2;
 static unsigned char *bits_vec;
 
-/* The name this program was run with. */
-
-char const *program_name;
-
 /* If nonzero, display usage information and exit.  */
 
 static int show_help;
@@ -294,7 +291,7 @@ matched identifier followed by the list of file names in which it occurs.\n\
 int
 main (int argc, char **argv)
 {
-  program_name = argv[0];
+  set_program_name (argv[0]);
   idh.idh_file_name = 0;
 
 #if ENABLE_NLS