LP tools doesn't compile with GCC 3.3

[Alpar Juttner]

$ make
make  all-am
make[1]: Entering directory `/home/alpar/projects/LEMON/hg/out/objs-gcc-3.3'
/bin/sh ./libtool --tag=CXX   --mode=compile g++-3.3 -DHAVE_CONFIG_H   -I.. -I.       -MT lemon/lemon_libemon_la-lp_base.lo -MD -MP -MF lemon/.deps/lemon_libemon_la-lp_base.Tpo -c -o lemon/lemon_libemon_la-lp_base.lo `test -f 'lemon/lp_base.cc' || echo '../'`lemon/lp_base.cc
libtool: compile:  g++-3.3 -DHAVE_CONFIG_H -I.. -I. -MT lemon/lemon_libemon_la-lp_base.lo -MD -MP -MF lemon/.deps/lemon_libemon_la-lp_base.Tpo -c ../lemon/lp_base.cc -o lemon/lemon_libemon_la-lp_base.o
../lemon/lp_base.h:1773: sorry, unimplemented: adjusting pointers for covariant 
   returns
../lemon/lp_base.h:1773: sorry, unimplemented: adjusting pointers for covariant 
   returns
../lemon/lp_base.h:1773: sorry, unimplemented: adjusting pointers for covariant 
   returns
../lemon/lp_base.h:1773: sorry, unimplemented: adjusting pointers for covariant 
   returns
../lemon/lp_base.h:1959: sorry, unimplemented: adjusting pointers for covariant 
   returns
../lemon/lp_base.h:1959: sorry, unimplemented: adjusting pointers for covariant 
   returns
../lemon/lp_base.h:1959: sorry, unimplemented: adjusting pointers for covariant 
   returns
../lemon/lp_base.h:1959: sorry, unimplemented: adjusting pointers for covariant 
   returns
make[1]: *** [lemon/lemon_libemon_la-lp_base.lo] Error 1
make[1]: Leaving directory `/home/alpar/projects/LEMON/hg/out/objs-gcc-3.3'
make: *** [all] Error 2

[Alpar Juttner]

The attached bundle file​ contains two changesets:

• [547e966b3b29] fixes the detection of Soplex. (Soplex has no installer, therefore it is more reasonable to search for the headers and libs in the build directory prefix. A full solution would be of course if Soplex provided a correct install mechanism.)
• [9db62975c32b] contained a better organization for newSolver() and cloneSolver(). Is also makes it possible to compile these codes with gcc-3.3.

[Alpar Juttner]

[547e966b3b29] and [9db62975c32b] are in the main branch.