modify CMakeLists.txt

CMakeLists.txt

@@ -30,7 +30,10 @@ include_directories(${JSONCPP_INCLUDE_DIRS})
 link_directories(${JSONCPP_LIBRARY_DIRS})
 find_package (UUID REQUIRED)
 
-find_package (OpenSSL REQUIRED)
+find_package (OpenSSL)
+if(OpenSSL_FOUND)
+add_definitions(-DUSE_OPENSSL)
+endif()
 message(STATUS "openssl inc path:" ${OPENSSL_INCLUDE_DIR})
 include_directories(${OPENSSL_INCLUDE_DIR})
 link_directories(${OPENSSL_SSL_LIBRARY})
@@ -79,8 +82,8 @@ add_dependencies(drogon makeVersion)
 
 get_directory_property(DEFS COMPILE_DEFINITIONS)
 foreach(loop_var ${DEFS})
-message(STATUS "definitions " ${loop_var})
-    file(APPEND "./config.h" "-D" ${loop_var} " ")
+#message(STATUS "definitions " ${loop_var})
+file(APPEND "./config.h" "-D" ${loop_var} " ")
 endforeach(loop_var)
 file(APPEND "./config.h" "\";")
 file(APPEND "./config.h" "\n" "const char compileFlags[]=\"" ${CMAKE_CXX_FLAGS} "\";")

lib/src/FileUpload.cc

@@ -1,6 +1,12 @@
 #include "Utilities.h"
 #include <drogon/FileUpload.h>
+#ifdef USE_OPENSSL
 #include <openssl/md5.h>
+#else
+namespace drogon{
+    //Implement MD5 function here if OpenSSL lib not found
+}
+#endif
 #include <iostream>
 #include <fstream>
 using namespace drogon;