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-rw-r--r--gdb/defs.h13
1 files changed, 9 insertions, 4 deletions
diff --git a/gdb/defs.h b/gdb/defs.h
index d994d3d..fd96665 100644
--- a/gdb/defs.h
+++ b/gdb/defs.h
@@ -804,11 +804,16 @@ typedef struct ptid ptid_t;
#include "tm.h"
#endif
-/* If the xm.h file did not define the mode string used to open the
- files, assume that binary files are opened the same way as text
- files */
+/* Assume that fopen accepts the letter "b" in the mode string.
+ Support for is demanded by ISO C90, and should be supported on all
+ platforms that claim to have a standards conforming C library. On
+ true POSIX systems it will be ignored and have no effect. There
+ may still be systems without a standards conforming C library where
+ an ISO C90 compiler (GCC) is available. Known examples are SunOS
+ 4.x and 4.3BSD. This assumption means these systems are no longer
+ supported. */
#ifndef FOPEN_RB
-#include "fopen-same.h"
+# include "fopen-bin.h"
#endif
/* Defaults for system-wide constants (if not defined by xm.h, we fake it).