Add os_unsetenv()

[exim.git] / src / src / osfunctions.h

diff --git a/src/src/osfunctions.h b/src/src/osfunctions.h
index 14111d383b68e3cad8ca336cbd4360a10f3eae2a..3d1914acb74a994f56ae6b5be9b11b139970add9 100644 (file)
--- a/src/src/osfunctions.h
+++ b/src/src/osfunctions.h
@@ -1,5 +1,3 @@
-/* $Cambridge: exim/src/src/osfunctions.h,v 1.5 2009/11/16 19:50:37 nm4 Exp $ */
-
 /*************************************************
 *     Exim - an Internet mail transport agent    *
 *************************************************/
@@ -14,7 +12,7 @@ that uses a type that isn't defined for them. */
 extern ip_address_item *os_common_find_running_interfaces(void);
 #endif
 
-/* If these exist as a macro, then they're overriden away from us and we
+/* If these exist as a macro, then they're overridden away from us and we
 rely upon the system headers to provide prototype declarations for us.
 Notably, strsignal() is not in the Single Unix Specification (v3) and
 predicting constness is awkward. */
@@ -34,5 +32,8 @@ extern const char   *os_strexit(int);     /* char to match os_strsignal */
 #ifndef os_strsignal
 extern const char   *os_strsignal(int);   /* char to match strsignal in some OS */
 #endif
+#ifndef os_unsetenv
+extern int           os_unsetenv(const char *);
+#endif
 
 /* End of osfunctions.h */