[Mohit Singh]

Hi everyone,
I am trying to install the SU2v4.0.0 using parallel build but got stuck in the first step of configuration. here's the command used for configuration:
./configure --enable-mpi --with-cc=/usr/local/bin/mpicc --with-cxx=/usr/local/bin/mpicxx
And i am totally confused about what is wrong with this step (have i missed any prerequisites for parallel build) even when i have installed openmpi as recommended on the SU2 website.
But the output of the above configure goes like this:
checking build system type... x86_64-unknown-linux-gnu
checking host system type... x86_64-unknown-linux-gnu
checking target system type... x86_64-unknown-linux-gnu
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... /bin/mkdir -p
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking whether make supports nested variables... yes
checking for style of include used by make... GNU
checking whether the C++ compiler works... no
configure: error: in `/home/mohit/Desktop/softwares/SU2v4.0.0':
configure: error: C++ compiler cannot create executables
See `config.log' for more details

One of the annoying thing about the above message is that i could not understand the reason for why the c++ compiler didn't works. One more thing to mention that when i tried to install SU2v4.1.0 on different system, it works but i don't know what is wrong with the installation of this version.

And one more thing not regarding SU2 install but about the forum that whenever i tried to attach a file, it would return with the message of Upload errors : invalid file.
I don't understand whether i am violating any of the protocols for attaching some file or is it something else. I would be grateful if anyone could tell me the right way for attaching any file along with the thread to post on the forum.
Thanks in advance.