Gcc problems on Solaris 10 X86

Question

I'm using Solaris 10 x86 and gcc from /usr/sfw/bin and have come across a couple of problems:
which gcc
/usr/sfw/bin/gcc
gcc -v
Reading specs from /usr/sfw/lib/gcc/i386-pc-solaris2.10/3.4.3/specs
Configured with: /builds/sfw10-gate/usr/src/cmd/gcc/gcc-3.4.3/configure prefix=/usr/sfw with-as=/usr/sfw/bin/gas with-gnu-as with-ld=/usr/ccs/bin/ld without-gnu-ld enable-languages=c,c++ --enable-shared
Thread model: posix
gcc version 3.4.3 (csl-sol210-3_4-branch+sol_rpath)
Problem 1
cat ll.cc
#include <signal.h>
int CS;
gcc -c ll.cc
ll.cc:2: error: expected unqualified-id before numeric constant
ll.cc:2: error: expected `,' or `;' before numeric constant
CS is defined in the file /usr/include/sys/regset.h as:
#define CS 15
I've changed the code to use MYCS instead and this gets around the problem. Does anyone have a more elegant solution to the problem?
Problem 2
In a g++ compilation I have a file that includes cpp_type_traits.h.
The compilation fails with:
/usr/sfw/lib/gcc/i386-pc-solaris2.10/3.4.3/../../../../include/c++/3.4.3/bits/cpp_type_traits.h:69: error: expected unqualified-id before "namespace"
The relevant line in cpp_type_traits.h is:
namespace __gnu_internal
Knowing rather little about g++ I've been Googling for an hour but not found anyone else with the same problem.
Many Thanks
Andy

Answer 1

I'm not fully sure what might cause your problems since I'm not a programmer myself. However, I do wonder if the gcc version located in /opt/sfw/bin may do you some good. When all other options fair I'd recommend getting the Studio 11 package and just use the cc compiler provided by Sun themselves. Its free anyway.