Don't include symtab.h from expression.h

expression.h includes symtab.h, but apparently only for the
declaration of struct block.  This patch changes it to foward-declare
the structure, and remove the include.

gdb/ChangeLog
2019-03-24  Tom Tromey  <tom@tromey.com>

	* expression.h: Don't include symtab.h.
	(struct block): Forward declare.

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index e4cef31..b831b28 100644 (file)
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,10 @@
 2019-03-24  Tom Tromey  <tom@tromey.com>
 
+       * expression.h: Don't include symtab.h.
+       (struct block): Forward declare.
+
+2019-03-24  Tom Tromey  <tom@tromey.com>
+
        * c-exp.y (typebase): Remove casts.
        * gdbtypes.c (lookup_unsigned_typename, )
        (lookup_signed_typename): Remove cast.

diff --git a/gdb/expression.h b/gdb/expression.h
index 36f18be..8db4b9d 100644 (file)
--- a/gdb/expression.h
+++ b/gdb/expression.h
@@ -20,9 +20,6 @@
 #if !defined (EXPRESSION_H)
 #define EXPRESSION_H 1
 
-
-#include "symtab.h"            /* Needed for "struct block" type.  */
-
 /* While parsing expressions we need to track the innermost lexical block
    that we encounter.  In some situations we need to track the innermost
    block just for symbols, and in other situations we want to track the