Add GNU libc extension variables __progname and __progname_full

This patch adds GNU libc extension variables __progname and __progname_full used by coreutils. These seem to come from BSD as 'BSD' paragraph explains - https://rosettacode.org/wiki/Program_name#C. Signed-off-by: Waldemar Kozaczuk <jwkozaczuk@gmail.com> Message-Id: <20190501040302.13344-1-jwkozaczuk@gmail.com>
cloudius-systems · May 1, 2019 · 4e425d4 · 4e425d4
1 parent 47804c4
commit 4e425d4
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/libc/libc.cc b/libc/libc.cc
@@ -32,6 +32,9 @@
 char *program_invocation_name;
 char *program_invocation_short_name;
 
+weak_alias(program_invocation_name, __progname_full);
+weak_alias(program_invocation_short_name, __progname);
+
 int libc_error(int err)
 {
     errno = err;