"libsodium is required" appeared even libsodium is correctly installed

[anguschiu1]

When running make ., the error keep coming

-- Could NOT find sodium (missing: sodium_LIBRARY_RELEASE sodium_LIBRARY_DEBUG) 
CMake Error at CMakeLists.txt:9 (MESSAGE):
  libsodium is required


-- Configuring incomplete, errors occurred!
See also "/Users/anguschiu/Documents/Dev/segvan/CMakeFiles/CMakeOutput.log".

It happened no matter I installed libsodium by brew install libsodium or by tar ball provided by official website

(I am using Mac OSX High Sierra 10.13.6)

Thank you!

[tobixen]

Same here, on archlinux

$ sudo pacman -S libsodium
warning: libsodium-1.0.17-1 is up to date -- reinstalling
resolving dependencies...
looking for conflicting packages...

Packages (1) libsodium-1.0.17-1

Total Download Size:   0.15 MiB
Total Installed Size:  0.48 MiB
Net Upgrade Size:      0.00 MiB

:: Proceed with installation? [Y/n] y
:: Retrieving packages...
 libsodium-1.0.17-1-x86_64                               155.1 KiB   257K/s 00:01 [###############################################] 100%
(1/1) checking keys in keyring                                                    [###############################################] 100%
(1/1) checking package integrity                                                  [###############################################] 100%
(1/1) loading package files                                                       [###############################################] 100%
(1/1) checking for file conflicts                                                 [###############################################] 100%
(1/1) checking available disk space                                               [###############################################] 100%
:: Processing package changes...
(1/1) reinstalling libsodium                                                      [###############################################] 100%
:: Running post-transaction hooks...
(1/1) Arming ConditionNeedsUpdate...

$ cat /var/lib/pacman/local/libsodium-1.0.17-1/files 
%FILES%
usr/
usr/include/
usr/include/sodium.h
usr/include/sodium/
usr/include/sodium/core.h
usr/include/sodium/crypto_aead_aes256gcm.h
usr/include/sodium/crypto_aead_chacha20poly1305.h
usr/include/sodium/crypto_aead_xchacha20poly1305.h
usr/include/sodium/crypto_auth.h
usr/include/sodium/crypto_auth_hmacsha256.h
usr/include/sodium/crypto_auth_hmacsha512.h
usr/include/sodium/crypto_auth_hmacsha512256.h
usr/include/sodium/crypto_box.h
usr/include/sodium/crypto_box_curve25519xchacha20poly1305.h
usr/include/sodium/crypto_box_curve25519xsalsa20poly1305.h
usr/include/sodium/crypto_core_ed25519.h
usr/include/sodium/crypto_core_hchacha20.h
usr/include/sodium/crypto_core_hsalsa20.h
usr/include/sodium/crypto_core_salsa20.h
usr/include/sodium/crypto_core_salsa2012.h
usr/include/sodium/crypto_core_salsa208.h
usr/include/sodium/crypto_generichash.h
usr/include/sodium/crypto_generichash_blake2b.h
usr/include/sodium/crypto_hash.h
usr/include/sodium/crypto_hash_sha256.h
usr/include/sodium/crypto_hash_sha512.h
usr/include/sodium/crypto_kdf.h
usr/include/sodium/crypto_kdf_blake2b.h
usr/include/sodium/crypto_kx.h
usr/include/sodium/crypto_onetimeauth.h
usr/include/sodium/crypto_onetimeauth_poly1305.h
usr/include/sodium/crypto_pwhash.h
usr/include/sodium/crypto_pwhash_argon2i.h
usr/include/sodium/crypto_pwhash_argon2id.h
usr/include/sodium/crypto_pwhash_scryptsalsa208sha256.h
usr/include/sodium/crypto_scalarmult.h
usr/include/sodium/crypto_scalarmult_curve25519.h
usr/include/sodium/crypto_scalarmult_ed25519.h
usr/include/sodium/crypto_secretbox.h
usr/include/sodium/crypto_secretbox_xchacha20poly1305.h
usr/include/sodium/crypto_secretbox_xsalsa20poly1305.h
usr/include/sodium/crypto_secretstream_xchacha20poly1305.h
usr/include/sodium/crypto_shorthash.h
usr/include/sodium/crypto_shorthash_siphash24.h
usr/include/sodium/crypto_sign.h
usr/include/sodium/crypto_sign_ed25519.h
usr/include/sodium/crypto_sign_edwards25519sha512batch.h
usr/include/sodium/crypto_stream.h
usr/include/sodium/crypto_stream_chacha20.h
usr/include/sodium/crypto_stream_salsa20.h
usr/include/sodium/crypto_stream_salsa2012.h
usr/include/sodium/crypto_stream_salsa208.h
usr/include/sodium/crypto_stream_xchacha20.h
usr/include/sodium/crypto_stream_xsalsa20.h
usr/include/sodium/crypto_verify_16.h
usr/include/sodium/crypto_verify_32.h
usr/include/sodium/crypto_verify_64.h
usr/include/sodium/export.h
usr/include/sodium/randombytes.h
usr/include/sodium/randombytes_salsa20_random.h
usr/include/sodium/randombytes_sysrandom.h
usr/include/sodium/runtime.h
usr/include/sodium/utils.h
usr/include/sodium/version.h
usr/lib/
usr/lib/libsodium.so
usr/lib/libsodium.so.23
usr/lib/libsodium.so.23.2.0
usr/lib/pkgconfig/
usr/lib/pkgconfig/libsodium.pc
usr/share/
usr/share/licenses/
usr/share/licenses/libsodium/
usr/share/licenses/libsodium/LICENSE

$ md5sum /usr/lib/libsodium.so.23.2.0
cdcef12e7026d945a10c00353c4276fa  /usr/lib/libsodium.so.23.2.0

$ ls -al /usr/lib/libsodium.so.23.2.0
-rwxr-xr-x 1 root root 350688 Jan  7 21:44 /usr/lib/libsodium.so.23.2.0

$ ls -al /usr/lib/libsodium.so
lrwxrwxrwx 1 root root 19 Jan  7 21:44 /usr/lib/libsodium.so -> libsodium.so.23.2.0

$ cmake .
-- The C compiler identification is GNU 8.2.1
-- The CXX compiler identification is GNU 8.2.1
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Could NOT find sodium (missing: sodium_LIBRARY_RELEASE sodium_LIBRARY_DEBUG) 
CMake Error at CMakeLists.txt:9 (MESSAGE):
  libsodium is required


-- Configuring incomplete, errors occurred!
See also "/home/tobias/segvan/CMakeFiles/CMakeOutput.log".

$ grep -c -i sodium /home/tobias/segvan/CMakeFiles/CMakeOutput.log
0

I have no clue about CMake, but I tried hardcoding the sodium include dir. Then I got the error that sodium_LIBRARY_RELEASE was not defined. Not sure if this should be set to the version number of sodium ... anyway, at that point I decided I've been wasting enough time on this :-)

[tobixen]

I downloaded the latest version of Findsodium.cmake from https://github.com/jedisct1/libsodium/blob/master/contrib/Findsodium.cmake but still no success.

[tobixen]

It's obviously an error of the upstream Findsodium.cmake, though since it's "just" a file in a contrib directory under libsodium, I'm not sure the issue tracker at the libsodium github is the proper place for it.

[ghost]

Worked with the latest libsodium installation guide https://libsodium.gitbook.io/doc/installation

[tobixen]

I should try to check that up ... if I only could find some time for it.

Since the original reporter had problems when installing it from the official tarball as well as through brew, and I can't get it to work with libsodium installed through archlinux/pacman, I would guess Findsodium fails due to other reasons, i.e. some other missing dependency. I wish I had the skills to debug it.

[kristapsk]

This has been only tested by myself on Gentoo, where I haven't got any issues with finding libsodium. If some changes in Findsodium.cmake or elsewhere helps, I open to pull requests.

[trurebel]

I've got the latest MacOS betas of everything, loads of system warning for early unsupported software, but libsodium "works". The CMake file though seems to be incomplete:

`CMake Warning (dev) in CMakeLists.txt:
No project() command is present. The top-level CMakeLists.txt file must
contain a literal, direct call to the project() command. Add a line of
code such as

project(ProjectName)

near the top of the file, but after cmake_minimum_required().

CMake is pretending there is a "project(Project)" command on the first
line.
This warning is for project developers. Use -Wno-dev to suppress it.`

However, this is probably not related to my next, and perhaps final, error:

Scanning dependencies of target segvan [ 50%] Building CXX object CMakeFiles/segvan.dir/segvan.cpp.o [100%] Linking CXX executable segvan ld: library not found for -lboost_chrono-mt clang: error: linker command failed with exit code 1 (use -v to see invocation) make[2]: *** [segvan] Error 1 make[1]: *** [CMakeFiles/segvan.dir/all] Error 2 make: *** [all] Error 2

This was fixed by export LDFLAGS='-L/usr/local/lib/' , but it does make me wonder how come CMake does not do that automatically, I thought that was the entire point of cmake.