wrong compiler used during instant build

[Damiaan]

cat instant_module_672321a1b160ae64201af8d497e52b999174cb1a/compile.log:

running build_ext
building '_instant_module_672321a1b160ae64201af8d497e52b999174cb1a' extension
creating build
creating build/temp.linux-x86_64-2.7
/scinet/gpc/mpi/openmpi/1.6.4-gcc-v4.7.2/bin/mpicc -fno-strict-aliasing -g -O2 -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -fPIC -I/home/s/steinman/dolores/Build/include -I/home/s/steinman/dolores/Build/include -I/home/s/steinman/dolores/Build/include/python2.7 -c instant_module_672321a1b160ae64201af8d497e52b999174cb1a_wrap.cxx -o build/temp.linux-x86_64-2.7/instant_module_672321a1b160ae64201af8d497e52b999174cb1a_wrap.o -O0
cc1plus: warning: command line option '-Wstrict-prototypes' is valid for C/ObjC but not for C++ [enabled by default]
creating build/lib.linux-x86_64-2.7

/scinet/gpc/mpi/openmpi/1.6.4-gcc-v4.7.2/bin/mpicxx -pthread -shared build/temp.linux-x86_64-2.7/instant_module_672321a1b160ae64201af8d497e52b999174cb1a_wrap.o -L/home/s/steinman/dolores/Build/lib -L/home/s/steinman/dolores/Build/lib -lboost_math_tr1 -lpython2.7 -o build/lib.linux-x86_64-2.7/_instant_module_672321a1b160ae64201af8d497e52b999174cb1a.so

g++: error: build/temp.linux-x86_64-2.7/instant_module_672321a1b160ae64201af8d497e52b999174cb1a_wrap.o: No such file or directory
error: command '/scinet/gpc/mpi/openmpi/1.6.4-gcc-v4.7.2/bin/mpicxx' failed with exit status 1

note that in the first compilation it's using mpicc instead of mpicxx. Setting both CC and CXX to mpicxx allows it to continue, but it shouln't be using the $CC variable in the first line.

when using gcc/g++ this works without any changes.

[Garth Wells (garth-wells)]

Bugs are now tracked at

    https://bitbucket.org/fenics-project/instant/issues

Please report there.