I installed gcc-4.9 but when I type gcc -v I get 4.6.3
46991
How to use GCC 4.7 in place of 4.6?
70702
Old version of gcc for new Ubuntu
15737
How can I tell if a library was compiled with -g?
72716
I can't install libtiff on my 64-bit Ubuntu
60566
I have Python on my Ubuntu system, but gcc can't find Python.h
116339
Full-upgrade to Debian Testing fails due to libc6-dev : Breaks: libgcc-8-dev (< 8.4.0-2~) but 8.3.0-6 is to be installed
58930
Recommended gcc warning options for C
150285
How can I update my OpenGL to 3.0 or higher
56213
How to install GCC 5 on debian jessie 8.1
395
Install gcc 5 on Ubuntu 18.04
47362
Is there a way to disable inline assembler in GCC?
27869
program g++ not found in path
94643
g++ undefined reference to `boost::system::system_category()'
34874
Exec format error of gcc-compiled Hello World c++
96950
How to change entry point of C program with gcc?
115655
How to get CPU-G to run on 18.04
28966
Is gcc 4.8 or earlier buggy about regular expressions?