Try Add a link to DLL in the project QT . Previously downloaded the lib for MINIGW.

Content Pro File

Win32: config (Release, Debug | Release): libs + = -l $$ PWD / D: / TEST / Sodium / Lib / -lsodium
Else: Win32: Config (Debug, Debug | Release): libs + = -l $$ PWD / D: / TEST / SODIUM / LIB / -LSODIUMD
ELSE: UNIX: LIBS + = -L $$ PWD / D: / TEST / SODIUM / LIB / -LSODIUM
INCLUDEPATH + = $$ PWD / D: / TEST / SODIUM / INCLUDE
Dependpath + = $$ PWD / D: / TEST / SODIUM / INCLUDE
Win32-G ++: Config (Release, Debug | Release): Pre_TargetDeps + = $$ PWD / D: /Test/Sodium/lib/libsodium.a
ELSE: Win32-G ++: Config (Debug, Debug | Release): Pre_TargetDeps + = $$ PWD / D: /test/sodium/lib/libsodiumd.a
ELSE: Win32 :! Win32-G ++: Config (Release, Debug | Release): Pre_targetDeps + = $$ PWD / D: /test/sodium/lib/sodium.lib
Else: Win32 :! Win32-G ++: Config (Debug, Debug | Release): Pre_TargetDeps + = $$ pwd / d: /test/sodium/lib/sodiumd.lib
ELSE: UNIX: Pre_TargetDeps + = $$ PWD / D: /test/sodium/lib/libsodium.a

I trial to induclude Luba – Writes No Such File or Directory

Answer 1, Authority 100%

includepath + = $$ PWD / D: / TEST / SODIUM / INCLUDE
Dependpath + = $$ PWD / D: / TEST / SODIUM / INCLUDE

This is $$ PWD – means the directory in which the PRO file is located.

Use:

includepath + = d: / test / sodium / include
DependPath + = D: / Test / Sodium / Include

or

includepath + = $$ pwd / .. relative_put__file
Dependpath + = $$ PWD / .. Relative_Put_K_Falam

for libraries – similar to

For libsodium-win32 library: I downloaded and unpacked, in my case the Bin / include / lib folder is located in D: \ Newfolder \ Libsodium-win32

in Pro file Write:

includepath + = d: \ newfolder \ libsodium-win32 \ include
DependPath + = D: \ NewFolder \ Libsodium-win32 \ include
LIBS + = -LD: \ NEWFolder \ libSodium-win32 \ lib -llibsodium

after which this code is normally compiled

# include & lt; sodium.h & gt;
Int Main (int argc, char * argv [])
{
  unsigned char * ch1 = 0;
  unsigned char * ch2 = 0;
  crypto_hash_sha256 (CH1, CH2, 1000);
  Return 0;
}

It is clear that the CRYPTO_HASH_SHA256 function must be transmitted correct values, and not in my example. Since in this case the program will “fall” when trying to start.