Missing step to git submodule init && git submodule update

[ralexstokes]

Following the tutorial directly, I had to do this step before the step to build with cmake.

If you try to build and see that libsnark is missing a CMakeLists.txt file then you should run git submodule init && git submodule update after git clone.

This is on macOS but shouldn't matter.

[ralexstokes]

This comment is macOS specific -- for those following along on that OS:

scipr-lab/libsnark#99
scipr-lab/libsnark#86

[ralexstokes]

I had to also manually go into /depends/libsnark and git submodule init && git submodule update to fetch the transitive deps FYI

[ralexstokes]

Ok -- for completeness sake and anyone having issues. You'll need to brew install anything missing and do the submodule dance I described above.

Then, here is what I used to get it to finally build:

LD_LIBRARY_PATH=/usr/local/opt/openssl/lib:"${LD_LIBRARY_PATH}"
CPATH=/usr/local/opt/openssl/include:"${CPATH}"
PKG_CONFIG_PATH=/usr/local/opt/openssl/lib/pkgconfig:"${PKG_CONFIG_PATH}"
export LD_LIBRARY_PATH CPATH PKG_CONFIG_PATH

CPPFLAGS=-I/usr/local/opt/openssl/include LDFLAGS=-L/usr/local/opt/openssl/lib PKG_CONFIG_PATH=/usr/local/opt/openssl/lib/pkgconfig cmake -DWITH_PROCPS=OFF -DWITH_SUPERCOP=OFF -DCMAKE_C_COMPILER=/usr/bin/gcc -DCMAKE_CXX_COMPILER=/usr/bin/g++ ..

And while this sounds silly, the first time I ran the cmake command it failed, but then I ran it a second time and it was all good. Now, running the tests seems to be passing!

[udibr]

On Ubuntu (inside libsnark docker) I had to do

git submodule update --init --recursive