GCC从4.8级提升到4.9级

Question

我正在试图在我的服务器上安装TrinityCore。在升级GCC以使用CMake时，我遇到了一个问题：

以下是我得到的回应：

gcc-4.9 is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
root@sd-25884:/home/wow/TrinityCore/build# cmake ../ -DCMAKE_INSTALL_PREFIX=/home/wow/server -DCONF_DIR=/home/wow/server/etc -DTOOLS=1 -DWITH_WARNINGS=1
-- Detected 64-bit platform
-- UNIX: Using default library directory
-- UNIX: Configuring uninstall target
-- UNIX: Created uninstall target
-- UNIX: Detected compiler: /usr/bin/cc
CMake Error at cmake/compiler/gcc/settings.cmake:7 (message):
  GCC: TrinityCore requires version 4.9.0 to build but found 4.8.4
Call Stack (most recent call first):
  cmake/platform/unix/settings.cmake:29 (include)
  cmake/macros/CheckPlatform.cmake:13 (include)
  CMakeLists.txt:58 (include)


-- Configuring incomplete, errors occurred!
See also "/home/wow/TrinityCore/build/CMakeFiles/CMakeOutput.log".
root@sd-25884:/home/wow/TrinityCore/build#

Answer 1

CMake使用多个变量设置默认编译器。您最感兴趣的是将CC变量设置为覆盖默认C编译器。就你而言，这将是：

CC=gcc-4.9 cmake ../ -

如果apt-get install g++-4.9是用C++编写的，您可能需要使用C++，这将是：

CXX=g++-4.9 cmake ../ -