Hi,
As I am fixing some of the C++ ports for GCC 3.2, I found a problem with lex.
The following patch is required for lex to generate code which
can compile with GCC 3.2. It applies to /usr/src/usr.bin/lex
--- flex.skl.orig Sat Sep 7 23:44:38 2002
+++ flex.sklSat Sep 7 23:45:06 2002
@@ -26,7 +26,8 @@
#include stdlib.h
%+
-class istream;
+#include iosfwd
+using namespace std;
%*
#include unistd.h
For Standard C++, you cannot forward declare istream as:
class istream;
because in Standard C++, istream is a typedef for a template:
typedef basic_istreamchar istream;
The correct fix is to include iosfwd. Under gcc 2.95,
iosfwd forward declares istream as class istream; and
under gcc 3.2, iosfwd forward declares istream as the typedef.
The using namespace std; is required because in gcc 3.2, istream
is in the std namespace. In gcc 2.95, this line will be benign.
--
Craig Rodrigues
http://www.gis.net/~craigr
[EMAIL PROTECTED]
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