To build from source,
LibreCAD-2 requires c++11, and practically, it requires gcc-4.8 or newer.
LibreCAD-3 (not ready for end users) requires c++11 and gcc-4.9 or newer.
If your system is older than gcc-4.8, LibreCAD-1 should build without an issue.
Todd wrote
To do that I would have to upgrade gcc to 4.9, which is no small task. For those not familiar with Red Hat Enterprise Linux and its clones, it is deliberately out-of-date to maintain stability. Great for a server, but a pain in the neck at times like these.
$ rpm -qa gcc
gcc-4.4.7-4.el6.x86_64
I am looking at two work arounds:
1) I have a Fedora Code 20 virtual machine. I could run 2.0.4 in my main window through X11 from my virtual machine.
2) RHEL 7 is out. I could hold my nose until Scientific Linux upgrades to 7.
IDEA: the Libre CAD developers could always avoid using bleeding edge compilers so the rest of us can use it.