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Home » Language IDEs » C / C++ IDE (CDT) » setting a user gcc
setting a user gcc [message #1780693] Thu, 25 January 2018 19:52
Christopher Hite is currently offline Christopher HiteFriend
Messages: 1
Registered: January 2018
Junior Member
I've got a userspace build of gcc which is what I want eclipse to use. How this is configured has change a few times. Currently I'm trying to do it on Oxygen.2 Release (4.7.2) and CDT 9.4.0.201801130900. It seems broken. In the past I'd sometimes figure it out just via my path.
PATH=/home/chris/tools/gcc-7.3.0/bin:/home/chris/bin:.....


I've hacked a make based project's make file to get it to dump the PATH. Something is prepending the path to the system gcc:
PATH=/usr/bin:/home/chris/tools/gcc-7.3.0/bin:....


The issue is probably with "Core Buid Toolchains". This thing has a list of available toolchains and sure enough has the system ones at the top. I can even add my own toolchain. There are up and down buttons, but the don't work. I cannot change the priorities. Maybe that's a bug. The buttons aren't greyed out they just don't work.

Other attempts to override this issue elsewhere also failed.


  1. I tried setting "Project | Linux Tools Path | prepend string to path".
  2. I tried setting PATH in ""C++ | Build | Settings | Environment".
  3. I tried hard-coding the path to gcc in "C++ | Build | Settings | Discovery | Command to get compiler specs". I ticked "allocate console", but never saw a console created. Bug?


This seems like a pretty standard exercise which I have done about every other year and there is documentation out there, but it's all for previous versions of CDT. Still I'm stuck. I'm pretty sure there's a bug, but maybe it's just tricky.

Can someone verify a bug or two here, or just point me to documentation on how to do it for CDT 9.4?
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