scons: Reading SConscript files ...
Using options from scons/options.cache
Checking for pkg-config... yes
Checking for numpy-1... yes
Checking for scotch... no (pkg-config file not found)
Trying to generate pkg-config file for scotch... failed
Checking for trilinos... yes
Checking for ufc-1... yes
Checking for umfpack... yes
Checking for mtl4... no (pkg-config file not found)
Trying to generate pkg-config file for mtl4... failed
Checking for petsc... yes
Checking for gts... yes
Checking for boost... yes
Checking for cholmod... no (pkg-config file not found)
Trying to generate pkg-config file for cholmod... failed
Checking for python-2... yes
Checking for slepc... yes
Checking for libxml-2.0... yes
Resolving compiler... done
Found optional package: petsc
Found optional package: slepc
Found optional package: umfpack
Found optional package: gts
Found optional package: trilinos
Unable to find optional package: scotch
Unable to find optional package: cholmod
Unable to find optional package: mtl4
Enabling compilation of PyDOLFIN
scons: done reading SConscript files.
scons: Building targets ...
c++ -o dolfin/main/SubSystemsManager.os -c -Wall -pipe -ansi -DDEBUG
-g -Werror -DNDEBUG -O2 -DPACKAGE_VERSION=\"0.8.0\" -DHAS_PETSC=1
-DHAS_SLEPC=1 -DHAS_UMFPACK=1 -DHAS_GTS=1 -DHAS_TRILINOS=1 -fPIC -I.
-I/usr/include/libxml2
-I/home/meg/src/petsc-2.3.3-p13/bmake/linux-gnu-c-debug
-I/home/meg/src/petsc-2.3.3-p13/include
-I/home/meg/src/petsc-2.3.3-p13/include/mpiuni
-I/home/meg/src/slepc-2.3.3 -I/home/meg/src/slepc-2.3.3/include
-I/home/meg/src/petsc-2.3.3-p13/bmake/linux-gnu-c-debug
-I/home/meg/src/petsc-2.3.3-p13/include
-I/home/meg/src/petsc-2.3.3-p13/include/mpiuni
-I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include
-I/home/meg/src/trilinos/local/include dolfin/main/SubSystemsManager.cpp
dolfin/main/SubSystemsManager.cpp: In static member function 'static
void dolfin::SubSystemsManager::initPETSc(int, char**, bool)':
dolfin/main/SubSystemsManager.cpp:90: error: 'MPI' has not been declared
dolfin/main/SubSystemsManager.cpp:107: error: 'MPI' has not been
declared
scons: *** [dolfin/main/SubSystemsManager.os] Error 1
scons: building terminated because of errors.
Any suggestions?