Error while loading shared libraries: libsystemc-2.3.0.so
安装完成systemC-2.3.0 后自己编了一个helloorld的小程序。
[root@localhost hello]# make
g++ -o hello hello.cpp -L/usr/systemc/lib-linux -I/usr/systemc/include -lsystemc
[root@localhost hello]# ./hello
./hello: error while loading shared libraries: libsystemc-2.3.0.so: cannot open shared object file: No such file or directory
如上显示：编译ok，但是执行不了。显示不能找到库文件。
打开systemc的目录看到该库存在的。
思考原因：在实际执行时不能加载库文件。
以下是网上找到的方法。最后是我的Makefile内容。解决问题。
This is a environment setting issue for dynamic linking, because the shared library is installed outside of the system default library directories. When you execute the binary, the loader failed to find libsystemc-2.3.0.so.
Two solutions.
setting your LD_LIBRARY_PATH.
export LD_LIBRARY_PATH=/usr/local/systemc-2.3.0/lib-linux64:$LD_LIBRARY_PATH
or, if your default LD_LIBRARY_PATH is empty
export LD_LIBRARY_PATH=/usr/local/systemc-2.3.0/lib-linux64
adding rpath to the executable when linking the binary. It adds an entry to the binary and hints the loader to search additional path.g++ -o TestSystemC ...your c++ files... -L/usr/local/systemc-2.3.0/lib-linux64 -lsystemc-2.3.0 -Wl,-rpath,/usr/local/systemc-2.3.0/lib-linux64
我的Makefile：
LIB_DIR=-L/usr/systemc/lib-linux
INC_DIR=-I/usr/systemc/include
LIB=-lsystemc -Wl,-rpath,/usr/systemc/lib-linux
App=hello
all:
g++ -o $(App) $(App).cpp $(LIB_DIR) $(INC_DIR) $(LIB) CLEAN:
RM -RF $(App)