François Bissey wrote:
On Fri, 12 Feb 2010 15:29:22 Dr. David Kirkby wrote:
I've tried to build sage-4.3.2 on Solaris 10 using gcc 4.4.3 (the latest
version). It is complaining about some code in NTL, specicially the use of
'if' and 'define' include/NTL/config.h.
I'm not a C++ programmer. It is normal to put 'if' and 'define' on two
lines like this below?
#if /* This is line 57, the first errror */
#define NTL_STD_CXX
I know in C, I'd use
#ifdef NTL_STD_CXX
But perhaps C++ is supposed to permit this. Anyway, for whatever reason,
gcc 4.4.3 on Solaris will not accept this - see below. But it does not
seem to find iostream.h, which might be a result of, or a cause of the
error.
Any thoughts you C++ programmers?
Hi Dave,
Not really a C++ programmer but I just did a test compile of ntl on my
system with a shiny new gcc-4.4.3. It worked but after checking what
I compiled is ntl-5.5.2 not ntl-5.4.2 as in sage.
Now in 5.5.2 we have this in include/NTL/config.h :
#if 1
#define NTL_STD_CXX
Noticed the "1"? It is very strange as it will always be true, why put "#if"
at all?
Francois
There is something quite broke on this system I can see, as there are numerous
errors that the system failed to find libgcc_so. Perhaps that file is
dynamically generated, and since the build system on this is screwered up in
some way, that is the source of the problem. Perhaps on some systems that 'if 1'
becomes on an 'if 0'.
I'd tried to build gcc in a way that did not require setting of LD_LIBRARY_PATH.
I thought this had worked ok, as gcc built without any problems, but something
is clearly amiss.
Back to the drawing board!
Dave
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