cccp.c (INO_T_EQ): Disable inode-based optimization for Cygwin.

1999-12-14  Mumit Khan  <khan@xraylith.wisc.edu>

	* cccp.c (INO_T_EQ): Disable inode-based optimization for Cygwin.
	* cppfiles.c (INO_T_EQ): Likewise.

From-SVN: r30903

gcc/ChangeLog

 1999-12-14  Mumit Khan  <khan@xraylith.wisc.edu>
 
+	* cccp.c (INO_T_EQ): Disable inode-based optimization for Cygwin.
+	* cppfiles.c (INO_T_EQ): Likewise.
+
+1999-12-14  Mumit Khan  <khan@xraylith.wisc.edu>
+
 	* i386/crtdll.h (STARTFILE_SPEC): Add -pg profiling support.
 	* i386/mingw32.h (LIB_SPEC): Likewise.
 	(STARTFILE_SPEC): Likewise.

gcc/cccp.c

@@ -84,8 +84,9 @@ static void hack_vms_include_specification ();
 #define INCLUDE_LEN_FUDGE 12	/* leave room for VMS syntax conversion */
 #endif /* VMS */
 
-/* Windows does not natively support inodes, and neither does MSDOS.  */
-#if (defined (_WIN32) && ! defined (__CYGWIN__) && ! defined (_UWIN)) \
+/* Windows does not natively support inodes, and neither does MSDOS. 
+   Cygwin's emulation can generate non-unique inodes, so don't use it. */
+#if (defined (_WIN32) && ! defined (_UWIN)) \
   || defined (__MSDOS__)
 #define INO_T_EQ(a, b) 0
 #endif

gcc/cppfiles.c

@@ -57,10 +57,11 @@ static void hack_vms_include_specification PROTO ((char *));
 #endif
 
 /* Windows does not natively support inodes, and neither does MSDOS.
+   Cygwin's emulation can generate non-unique inodes, so don't use it.
    VMS has non-numeric inodes. */
 #ifdef VMS
 #define INO_T_EQ(a, b) (!bcmp((char *) &(a), (char *) &(b), sizeof (a)))
-#elif (defined _WIN32 && !defined CYGWIN && ! defined (_UWIN)) \
+#elif (defined _WIN32 && ! defined (_UWIN)) \
        || defined __MSDOS__
 #define INO_T_EQ(a, b) 0
 #else