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-rw-r--r--ChangeLog4
-rw-r--r--stdlib/stdlib.h2
2 files changed, 5 insertions, 1 deletions
diff --git a/ChangeLog b/ChangeLog
index 9080030d1e..0fcaaa2df7 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2010-01-13  Ulrich Drepper  <drepper@redhat.com>
+
+	* stdlib/stdlib.h: Parameter of unsetenv must not be NULL.
+
 2010-01-12  H.J. Lu  <hongjiu.lu@intel.com>
 
 	* sysdeps/x86_64/multiarch/strlen.S: Unroll the loop.
diff --git a/stdlib/stdlib.h b/stdlib/stdlib.h
index bac8ed65be..248aa33471 100644
--- a/stdlib/stdlib.h
+++ b/stdlib/stdlib.h
@@ -586,7 +586,7 @@ extern int setenv (__const char *__name, __const char *__value, int __replace)
      __THROW __nonnull ((2));
 
 /* Remove the variable NAME from the environment.  */
-extern int unsetenv (__const char *__name) __THROW;
+extern int unsetenv (__const char *__name) __THROW __nonnull ((1));
 #endif
 
 #ifdef	__USE_MISC