Build dtksh on more OSs

cde/programs/dtksh/ksh93/src/lib/libast/include/ast.h

@@ -121,9 +121,17 @@
  * workaround botched headers that assume <stdio.h>
  */
 
+#if defined(linux)
+#ifndef __FILE
+#define __FILE	FILE
+#endif
+#endif
+
+#if !defined(CSRG_BASED)
 #ifndef FILE
 #define FILE	Sfio_t
 #endif
+#endif
 
 /*
  * exit() support -- this matches shell exit codes

cde/programs/dtksh/ksh93/src/lib/libast/include/ast_std.h

@@ -137,7 +137,9 @@
 #define _SKIP_SFSTDIO_H
 #else
 #define _SFSTDIO_H
+#if !defined(linux)
 #define FILE	int
+#endif
 #if defined(__STDPP__directive) && defined(__STDPP__hide)
 #if !_std_def_calloc
 __STDPP__directive pragma pp:hide calloc

cde/programs/dtksh/ksh93/src/lib/libast/include/sfio.h

@@ -149,9 +149,11 @@
 #define _STDIO_INCLUDED	1
 #endif
 
+#if !defined(CSRG_BASED)
 #ifndef FILE
 #define FILE	Sfio_t
 #endif
+#endif
 #endif /* __cplusplus */
 
 typedef struct _sfio_	Sfile_t, Sfio_t, SFIO;