system.h (SSIZE_MAX): Delete backup definition.

	* system.h (SSIZE_MAX): Delete backup definition.

	* cppfiles.c (read_include_file): Use INTTYPE_MAXIMUM(ssize_t)
	instead of SSIZE_MAX.

From-SVN: r34467

gcc/ChangeLog

+2000-06-09  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
+
+	* system.h (SSIZE_MAX): Delete backup definition.
+
+	* cppfiles.c (read_include_file): Use INTTYPE_MAXIMUM(ssize_t)
+	instead of SSIZE_MAX.
+
 2000-06-09  Jakub Jelinek  <jakub@redhat.com>
 
 	* configure.in: Check whether gas supports -relax.

gcc/cppfiles.c

@@ -727,8 +727,11 @@ read_include_file (pfile, fd, ihash)
 	 the max size of a file might be bigger than the address
 	 space.  We can't handle a file that large.  (Anyone with
 	 a single source file bigger than 2GB needs to rethink
-	 their coding style.)  */
-      if (st.st_size > SSIZE_MAX)
+	 their coding style.)  Some systems (e.g. AIX 4.1) define
+	 SSIZE_MAX to be much smaller than the actual range of the
+	 type.  Use INTTYPE_MAXIMUM unconditionally to ensure this
+	 does not bite us.  */
+      if (st.st_size > INTTYPE_MAXIMUM (ssize_t))
 	{
 	  cpp_error (pfile, "%s is too large", ihash->name);
 	  goto fail;

gcc/system.h

@@ -250,10 +250,6 @@ extern int errno;
 # define UCHAR_MAX INTTYPE_MAXIMUM (unsigned char)
 #endif
 
-#ifndef SSIZE_MAX
-# define SSIZE_MAX INTTYPE_MAXIMUM (ssize_t)
-#endif
-
 #ifdef TIME_WITH_SYS_TIME
 # include <sys/time.h>
 # include <time.h>