add libc building to agbcc.

1 files changed, 23 insertions, 0 deletions

diff --git a/libc/stdlib/environ.c b/libc/stdlib/environ.c
new file mode 100644
index 0000000..4f6ff8b
--- /dev/null
+++ b/libc/stdlib/environ.c
@@ -0,0 +1,23 @@
+/* Copyright (c) 1995, 1996 Cygnus Support.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms are permitted
+ * provided that the above copyright notice and this paragraph are
+ * duplicated in all such forms and that any documentation,
+ * advertising materials, and other materials related to such
+ * distribution and use acknowledge that the software was developed
+ * at Cygnus Support, Inc.  Cygnus Support, Inc. may not be used to
+ * endorse or promote products derived from this software without
+ * specific prior written permission.
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+/* Provide a definition of `environ' if crt0.o doesn't.  */
+
+static char *initial_env[] = { 0 };
+
+/* Posix says `environ' is a pointer to a null terminated list of pointers.
+   Hence `environ' itself is never NULL.  */
+char **environ = &initial_env[0];