1 files changed, 16 insertions, 1 deletions
diff --git a/awk.h b/awk.h
index 44fda9d4..438cca03 100644
--- a/awk.h
+++ b/awk.h
@@ -30,6 +30,15 @@
  * any system headers.  Otherwise, extreme death, destruction
  * and loss of life results.
  */
+#if defined(_TANDEM_SOURCE)
+/*
+ * config.h forces this even on non-tandem systems but it
+ * causes problems elsewhere if used in the check below.
+ * so workaround it. bleah.
+ */
+#define tandem_for_real	1
+#endif
+
 #ifdef HAVE_CONFIG_H
 #include <config.h>
 #endif
@@ -38,7 +47,7 @@
 #define _GNU_SOURCE	1	/* enable GNU extensions */
 #endif /* _GNU_SOURCE */
 
-#if defined(_TANDEM_SOURCE) && ! defined(_SCO_DS)
+#if defined(tandem_for_real) && ! defined(_SCO_DS)
 #define _XOPEN_SOURCE_EXTENDED 1
 #endif
 
@@ -80,6 +89,12 @@ extern int errno;
 #include <stdlib.h>
 #endif	/* not STDC_HEADERS */
 
+#ifdef HAVE_STDBOOL_H
+#include <stdbool.h>
+#else
+#include "missing_d/gawkbool.h"
+#endif
+
 #include "mbsupport.h" /* defines MBS_SUPPORT */
 
 #if MBS_SUPPORT