Uninstall gcc-5.4.0 to run gcc-4.8 as default
I am using Ubuntu 14.04. Recently I decided to install gcc-5.4.0 (from source, i.e. i downloaded a tar ball and followed instructions to install) since it was needed to run CAMB and CosmoMC.
However, I am in need of using a new program: CosmoSIS (https://bitbucket.org/joezuntz/cosmosis/wiki/Manual%20Install), this code requires gcc-4.8 to run.
Whenever i try to install CosmoSIS, the code crashes because when it is searching for gcc-4.8 in /usr/local/bin it conflicts with gcc-5.4 which is installed in the same directory (i am new to this, i'm guessing i made a mistake by installing 5.4 in the same directory in which 4.8 is installed)
I'm looking for help on uninstalling gcc-5.4 since my priority is running CosmoSIS and gcc-4.8 is needed. I know there is no "uninstall" command for source-installed programs, but i need help on this: How can i uninstall a source-installed program?
Thank you in advance
uninstall gcc
asked Jan 11 '17 at 19:05
Claudio NahmadClaudio Nahmad
613
add a comment |
I am using Ubuntu 14.04. Recently I decided to install gcc-5.4.0 (from source, i.e. i downloaded a tar ball and followed instructions to install) since it was needed to run CAMB and CosmoMC.
However, I am in need of using a new program: CosmoSIS (https://bitbucket.org/joezuntz/cosmosis/wiki/Manual%20Install), this code requires gcc-4.8 to run.
Whenever i try to install CosmoSIS, the code crashes because when it is searching for gcc-4.8 in /usr/local/bin it conflicts with gcc-5.4 which is installed in the same directory (i am new to this, i'm guessing i made a mistake by installing 5.4 in the same directory in which 4.8 is installed)
I'm looking for help on uninstalling gcc-5.4 since my priority is running CosmoSIS and gcc-4.8 is needed. I know there is no "uninstall" command for source-installed programs, but i need help on this: How can i uninstall a source-installed program?
Thank you in advance
uninstall gcc
asked Jan 11 '17 at 19:05
Claudio NahmadClaudio Nahmad
613
add a comment |
I am using Ubuntu 14.04. Recently I decided to install gcc-5.4.0 (from source, i.e. i downloaded a tar ball and followed instructions to install) since it was needed to run CAMB and CosmoMC.
However, I am in need of using a new program: CosmoSIS (https://bitbucket.org/joezuntz/cosmosis/wiki/Manual%20Install), this code requires gcc-4.8 to run.
Whenever i try to install CosmoSIS, the code crashes because when it is searching for gcc-4.8 in /usr/local/bin it conflicts with gcc-5.4 which is installed in the same directory (i am new to this, i'm guessing i made a mistake by installing 5.4 in the same directory in which 4.8 is installed)
I'm looking for help on uninstalling gcc-5.4 since my priority is running CosmoSIS and gcc-4.8 is needed. I know there is no "uninstall" command for source-installed programs, but i need help on this: How can i uninstall a source-installed program?
Thank you in advance
uninstall gcc
asked Jan 11 '17 at 19:05
Claudio NahmadClaudio Nahmad
613
I am using Ubuntu 14.04. Recently I decided to install gcc-5.4.0 (from source, i.e. i downloaded a tar ball and followed instructions to install) since it was needed to run CAMB and CosmoMC.
However, I am in need of using a new program: CosmoSIS (https://bitbucket.org/joezuntz/cosmosis/wiki/Manual%20Install), this code requires gcc-4.8 to run.
Whenever i try to install CosmoSIS, the code crashes because when it is searching for gcc-4.8 in /usr/local/bin it conflicts with gcc-5.4 which is installed in the same directory (i am new to this, i'm guessing i made a mistake by installing 5.4 in the same directory in which 4.8 is installed)
I'm looking for help on uninstalling gcc-5.4 since my priority is running CosmoSIS and gcc-4.8 is needed. I know there is no "uninstall" command for source-installed programs, but i need help on this: How can i uninstall a source-installed program?
Thank you in advance
uninstall gcc
uninstall gcc
asked Jan 11 '17 at 19:05
Claudio NahmadClaudio Nahmad
613
asked Jan 11 '17 at 19:05
Claudio NahmadClaudio Nahmad
613
asked Jan 11 '17 at 19:05
Claudio NahmadClaudio Nahmad
613
asked Jan 11 '17 at 19:05
Claudio NahmadClaudio Nahmad
613
asked Jan 11 '17 at 19:05
Claudio NahmadClaudio Nahmad
613
613
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
Just create a symbolic link to gcc-4.8
cd /usr/bin
sudo rm gcc
sudo ln -s gcc-4.8 gcc
now try
gcc --version
And see if you got the desired result
edited Aug 3 '17 at 9:31
Zanna
50.7k13136241
answered Jan 11 '17 at 19:32
amanuskamanusk
9062718
while/usr/bin/gccis very likely to be a symlink, it would be advisable to check first. Also, OP wants to uninstall gcc-5.4 so it would be nice if your answer addressed that...
– Zanna
Aug 3 '17 at 9:35
add a comment |
I advise to use update-alternatives command as described in the answer How to choose the default gcc and g++ version?
answered Jan 12 at 15:17
mboyarmboyar
164
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
Just create a symbolic link to gcc-4.8
cd /usr/bin
sudo rm gcc
sudo ln -s gcc-4.8 gcc
now try
gcc --version
And see if you got the desired result
edited Aug 3 '17 at 9:31
Zanna
50.7k13136241
answered Jan 11 '17 at 19:32
amanuskamanusk
9062718
while/usr/bin/gccis very likely to be a symlink, it would be advisable to check first. Also, OP wants to uninstall gcc-5.4 so it would be nice if your answer addressed that...
– Zanna
Aug 3 '17 at 9:35
add a comment |
Just create a symbolic link to gcc-4.8
cd /usr/bin
sudo rm gcc
sudo ln -s gcc-4.8 gcc
now try
gcc --version
And see if you got the desired result
edited Aug 3 '17 at 9:31
Zanna
50.7k13136241
answered Jan 11 '17 at 19:32
amanuskamanusk
9062718
while/usr/bin/gccis very likely to be a symlink, it would be advisable to check first. Also, OP wants to uninstall gcc-5.4 so it would be nice if your answer addressed that...
– Zanna
Aug 3 '17 at 9:35
add a comment |
Just create a symbolic link to gcc-4.8
cd /usr/bin
sudo rm gcc
sudo ln -s gcc-4.8 gcc
now try
gcc --version
And see if you got the desired result
edited Aug 3 '17 at 9:31
Zanna
50.7k13136241
answered Jan 11 '17 at 19:32
amanuskamanusk
9062718
Just create a symbolic link to gcc-4.8
cd /usr/bin
sudo rm gcc
sudo ln -s gcc-4.8 gcc
now try
gcc --version
And see if you got the desired result
edited Aug 3 '17 at 9:31
Zanna
50.7k13136241
answered Jan 11 '17 at 19:32
amanuskamanusk
9062718
edited Aug 3 '17 at 9:31
Zanna
50.7k13136241
edited Aug 3 '17 at 9:31
Zanna
50.7k13136241
edited Aug 3 '17 at 9:31
Zanna
50.7k13136241
50.7k13136241
answered Jan 11 '17 at 19:32
amanuskamanusk
9062718
answered Jan 11 '17 at 19:32
amanuskamanusk
9062718
answered Jan 11 '17 at 19:32
amanuskamanusk
9062718
9062718
while/usr/bin/gccis very likely to be a symlink, it would be advisable to check first. Also, OP wants to uninstall gcc-5.4 so it would be nice if your answer addressed that...
– Zanna
Aug 3 '17 at 9:35
add a comment |
while/usr/bin/gccis very likely to be a symlink, it would be advisable to check first. Also, OP wants to uninstall gcc-5.4 so it would be nice if your answer addressed that...
– Zanna
Aug 3 '17 at 9:35
while
/usr/bin/gcc is very likely to be a symlink, it would be advisable to check first. Also, OP wants to uninstall gcc-5.4 so it would be nice if your answer addressed that...– Zanna
Aug 3 '17 at 9:35
while
/usr/bin/gcc is very likely to be a symlink, it would be advisable to check first. Also, OP wants to uninstall gcc-5.4 so it would be nice if your answer addressed that...– Zanna
Aug 3 '17 at 9:35
add a comment |
I advise to use update-alternatives command as described in the answer How to choose the default gcc and g++ version?
answered Jan 12 at 15:17
mboyarmboyar
164
add a comment |
I advise to use update-alternatives command as described in the answer How to choose the default gcc and g++ version?
answered Jan 12 at 15:17
mboyarmboyar
164
add a comment |
I advise to use update-alternatives command as described in the answer How to choose the default gcc and g++ version?
answered Jan 12 at 15:17
mboyarmboyar
164
I advise to use update-alternatives command as described in the answer How to choose the default gcc and g++ version?
answered Jan 12 at 15:17
mboyarmboyar
164
answered Jan 12 at 15:17
mboyarmboyar
164
answered Jan 12 at 15:17
mboyarmboyar
164
answered Jan 12 at 15:17
mboyarmboyar
164
164
add a comment |
add a comment |
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