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-rw-r--r--conf/portability.h20
1 files changed, 20 insertions, 0 deletions
diff --git a/conf/portability.h b/conf/portability.h
new file mode 100644
index 0000000000..ab41b5d977
--- /dev/null
+++ b/conf/portability.h
@@ -0,0 +1,20 @@
+/* This file is used by some of the resolver code in inet/ that
+ comes from BIND 4.9. I have written this file instead of modifying
+ those things not to use it so that I can later drop in replacement
+ files from future BIND distributions without change. */
+
+#include <unistd.h>
+#include <string.h>
+#include <stdlib.h>
+
+/* Some BIND code decides it can omit the definitions of some functions
+ if BSD is defined to some value. That might make sense when the BIND
+ code is augmenting or replacing an existing system library, but we can
+ never omit a function here, since we are defining the system library. */
+
+#undef BSD
+
+/* Some code does stupid compatibility kludges for SunOS braindeath
+ #ifdef sun. */
+
+#undef sun