rubiks ignores CXX and uses g++ even if CXX is Sun compiler

[drkirkby]

Using

• Solaris 10 update 7 on SPARC
• sage-4.1.2.alpha2
• Sun Studio 12.1
• An updated configure script to allow the Sun compiler to be used #7021

CC was set to the Sun C compiler, CXX to the Sun C++ compiler and SAGE_FORTRAN to the Sun Fortran 95 compiler.

rubiks-20070912.p9 totally ignores the setting of CC, and uses gcc which it finds in the path. This is unfortunately not an uncommon problem.

rubiks-20070912.p9/src/dik/globals.h
rubiks-20070912.p9/src/dik/permcube.c
Finished extraction
****************************************************
Host system
uname -a:
SunOS swan 5.10 Generic_139555-08 sun4u sparc SUNW,Sun-Blade-1000
****************************************************
****************************************************
CC Version
/opt/xxxsunstudio12.1/bin/cc -v
usage: cc [ options] files.  Use 'cc -flags' for details
****************************************************
Building Rubiks cube solvers
make[2]: Entering directory `/export/home/drkirkby/sage/gcc32/sage-4.1.2.alpha2/spkg/build/rubiks-20070912.p9/src'
for dir in dietz/cu2 dietz/mcube dietz/solver dik reid; do \
        (cd ${dir} && make all)\
done
make[3]: Entering directory `/export/home/drkirkby/sage/gcc32/sage-4.1.2.alpha2/spkg/build/rubiks-20070912.p9/src/dietz/cu2'
g++ -O2 -c cu2.cpp
g++ -O2 -c main.cpp

[drkirkby]

Having looked at this package, I can see it was broken in numerous ways.

• g++ was hard coded
• An option was passed to the assembler in an attempt to suppress warnings, though this would only work with the GNU assembler
• I don't think it could build 64-bit executables - there was nothing about SAGE64 in the spkg-install
• CFLAGS were used when CXXFLAGS should have been used.

Basically, the makefiles were a total mess.

The revised .spkg has been tested on

• 32-bit Solaris SPARC with gcc
• 64-bit Solaris SPARC with gcc
• 32-bit Solaris SPARC with Sun compiler
• 64-bit Solaris SPARC with Sun compiler
• Sage.math - I think the default is 64-bit there.
• 32-bit on bsd.math with gcc
• 64-bit on bsd.math with gcc

There are now no hard-coded options, or compilers. Everything can be set from spkg-install, and is set sensibly. I've tested this with both 32 and 64-bit builds on Solaris, using both the GNU and Sun compilers. Also tested on sage.math. Also tested on bsd.math in both

The new spkg can be found here. ​http://sage.math.washington.edu/home/kirkby/Solaris-fixes/rubiks-20070912.p10/rubiks-20070912.p10.spkg

The spkg-install is here ​http://sage.math.washington.edu/home/kirkby/Solaris-fixes/rubiks-20070912.p10/spkg-install

The revised Makefiles, patches etc are in this directory:

​http://sage.math.washington.edu/home/kirkby/Solaris-fixes/rubiks-20070912.p10

Be warned, the patches are bigger than the makefiles - the chances are so many.

[mhansen]

Looks good to me.

[drkirkby]

Since you gave this a positive review, I've changed the title from '[with spkg; needs review] ' to '[with spkg; positive review]'

Now this new radio button has been added to trac that allows one to specify a positive review, should one still add '[with spkg; needs review]' to the title, or the 'needs review' bit ignored?

Dave