On Wed, Sep 15, 2021 at 6:39 PM Samyukta Yagati <sa...@berkeley.edu> wrote: > > I installed Crypto++ from source as follows: > > git clone https://github.com/weidai11/cryptopp.git > cd cryptopp > Uncommented the CXX flag line in GNUmakefile that adds "-stdlib=libc++" > because I am using XCode. > make -j 8 (8 = value of $(nproc) on my machine if it were linux) > sudo make install > > The make and install complete without errors. I confirmed that /usr/local/lib > contains libcryptopp.a. > > When I try to use libcryptopp in a project (in a different directory from the > cryptopp install), clang (Apple Clang 12.0.0) can't find it. I get the > following error message: > > + LD lib/crypto_bench > ld: library not found for -l:libcryptopp.a > clang: error: linker command failed with exit code 1 (use -v to see > invocation) > > ... > > I also tried updating my PATH variable in bash_profile with the location of > libcryptopp as follows, then source'd bash_profile again: > > export PATH="/usr/local/lib:$PATH" > > However, this resulted in the same error as before when I tried to compile > the project. I've spent several hours googling and haven't been able to find > a fix, and I'm wary of manually symlinking the file because it can break > other installs on my laptop. Any help with fixing this issue would be much > appreciated.
When linking, use -L to provide a path to the linker. That is, you invoke ld directly. If you are passing the linker option through the compiler driver, then use -Wl,-L -Wl,<path> So you would probably use something like: clang++ -g2 -O3 -I /usr/local/include test.cxx -Wl,-L -Wl,/usr/local/lib -o test.exe You would have to do the same on, say, CentOS, Fedora and Red Hat. Red Hat does not put /usr/local on-path for the build tools. Jeff -- You received this message because you are subscribed to the Google Groups "Crypto++ Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to cryptopp-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/cryptopp-users/CAH8yC8mNpnYfVifuBg12VHgRLuTyo5ZYDyv5Vg2TU49TxtPQhA%40mail.gmail.com.
