问题
I'm using CLion IDE, Cmake and trying to write Hello world using CERN ROOT library.
CMakeLists.txt:
message(STATUS $ENV{ROOTSYS})
~/.bashrc:
export ROOTSYS="$HOME/tools/root-build/"
During build in CLion $ENV{ROOTSYS} is empty by some reason. But $ENV{PATH} returns correct $PATH.
What I did wrong?
回答1:
From CLion developers FAQ:
Q: How to pass environment variables and parameters to CMake in CLion?
A: The best way is to use Preferences/Settings | Build, Execution, Deployment | CMake dialog.
As for .bashrc file, it is only used by bash. CLion doesn't need to use bash for run configuration process.
回答2:
Go to File -> Settings -> Build,Execution,Deployment
Click Pass system and...
For old Clion
For Clion 2017.2
Variables from .bashrc aren't passed
回答3:
On Ubuntu 17.04, you can set a permanent environment variable by modifying
/etc/enviornment
[I assume you can do this in other versions of Linux, but I provide the version of the system that I am using.]
For example, I am compiling test cases that assume that ${GOOGLE_MOCK} has been set. I added the following to my /etc/environment file, and now I don't have to rewrite all of my CMakeLists.txt files:
GOOGLE_MOCK=/usr/local/src/googletest/googlemock
GOOGLE_TEST_HOME=/usr/local/src/googletest/googletest
Clion just became much more useable. Hope this helps someone else!
回答4:
One thing you can check is the .gdbinit. Clion on Linux will invoke the gdb, which will read in the .gdbinit. I happen to have set environment LD_LIBRARY_PATH xxx in my .gdbinit file, which will override whatever you set LD_LIBRARY_PATH from shell, whether through direct export or through .bashrc, or from CLion environment variable panel.
Hope this helps.
来源：https://stackoverflow.com/questions/37662130/clion-or-cmake-does-not-see-environment-variable