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-rw-r--r--ace/config-sunos4-sun3.x.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/ace/config-sunos4-sun3.x.h b/ace/config-sunos4-sun3.x.h
index e3aa932be7a..f57c51e447c 100644
--- a/ace/config-sunos4-sun3.x.h
+++ b/ace/config-sunos4-sun3.x.h
@@ -4,7 +4,7 @@
// The following configuration file is designed to work for SunOS4
// platforms using the SunC++ 3.0.x compiler.
-#if !defined (ACE_CONFIG_H)
+#ifndef ACE_CONFIG_H
#define ACE_LACKS_GETPGID
// Optimize ACE_Handle_Set for select().