Enable explicit static SSL linking (#55)

Author: gitbuda

CMakeLists.txt

@@ -30,6 +30,8 @@ endif()
 message(STATUS "CMake build type: ${CMAKE_BUILD_TYPE}")
 # Config of some libraries (e.g. replxx) depends on the build type.
 string(TOLOWER "${CMAKE_BUILD_TYPE}" CMAKE_BUILD_TYPE_LOWERCASE)
+# Enable explicit static linking of SSL because of generic Linux binary.
+set(MGCONSOLE_STATIC_SSL OFF CACHE STRING "Statically link SSL")
 
 # Set default instalation directory to '/usr'
 if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
@@ -39,7 +41,6 @@ if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
 endif()
 
 add_subdirectory(src)
-
 if(BUILD_TESTING)
     add_subdirectory(tests)
 endif()

README.md

@@ -11,7 +11,7 @@ To build and install mgconsole from source you will need:
   - CMake version >= 3.4
   - OpenSSL version >= 1.0.2
   - C compiler supporting C11
-  - C++ compiler supporting C++17
+  - C++ compiler supporting C++20
 
 To install compile dependencies on Debian / Ubuntu:
 

src/CMakeLists.txt

@@ -30,12 +30,10 @@ find_package(Threads REQUIRED)
 set(CMAKE_THREAD_PREFER_PTHREAD TRUE)
 set(THREADS_PREFER_PTHREAD_FLAG TRUE)
 
-if(NOT MGCONSOLE_ON_LINUX)
+if(NOT MGCONSOLE_ON_LINUX OR MGCONSOLE_STATIC_SSL)
   set(OPENSSL_USE_STATIC_LIBS TRUE)
 endif()
-
 find_package(OpenSSL REQUIRED)
-
 if(MGCONSOLE_ON_OSX)
   set(MACOSX_OPENSSL_ROOTDIR_FLAG "-DOPENSSL_ROOT_DIR=${OPENSSL_ROOT_DIR}")
 endif()