Add tentative support for Solaris/AMD64.

[pspp] / lib / fbufmode.c

diff --git a/lib/fbufmode.c b/lib/fbufmode.c
index 58c3bc247a418d52b39dcb5e0c65e7e8e0121a41..1c66a53784cddf725896e5ff55f97d9299568e3e 100644 (file)
--- a/lib/fbufmode.c
+++ b/lib/fbufmode.c
@@ -55,8 +55,15 @@ fbufmode (FILE *fp)
   if (fp->_flag & _IOLBF)
     return _IOLBF;
 # endif
-# if defined __sun && defined __sparc && defined _LP64 /* Solaris/SPARC 64-bit */
-  return ((unsigned int *) fp) [9] & (_IONBF | _IOFBF);
+# if defined __sun && defined _LP64 /* Solaris/{SPARC,AMD64} 64-bit */
+#  define fp_ ((struct { unsigned char *_ptr; \
+                        unsigned char *_base; \
+                        unsigned char *_end; \
+                        long _cnt; \
+                        int _file; \
+                        unsigned int _flag; \
+                      } *) fp)
+  return fp_->_flag & (_IONBF | _IOFBF);
 # else
   if (fp->_flag & _IONBF)
     return _IONBF;