我下了gfccore-2.3.1和gfcui-2.3.1,但不知先装哪个,我先装了gfccore-2.3.1,输入
$ make
安装时出现如下提示:
checking for sigc++-2.0 >= 2.0.0... Package sigc++-2.0 was not found in the pkg-config search path.
Perhaps you should add the directory containing `sigc++-2.0.pc'
to the PKG_CONFIG_PATH environment variable
No package 'sigc++-2.0' found
configure: error: Library requirements (sigc++-2.0 >= 2.0.0) not met; consider adjusting the PKG_CONFIG_PATH environment variable if your libraries are in a nonstandard prefix so pkg-config can find them.
是我没有sigc++-2.0这个包吗?还是需要设置环境变量PKG_CONFIG_PATH?怎样知道我是否装了sigc++-2.0?