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--- nix:gcc [2017/05/17 16:24] – kauffman
+++ nix:gcc [2021/01/20 12:25] (current) – kauffman
@@ Line 1: / Line 1: @@
-====== [[ https://en.wikipedia.org/wiki/I_Can_Has_Cheezburger%3F|We can haz GCC]] ======
+====== GCC ======
 ===== GCC Versions that are already installed on CS infrastructure =====
 Usually, we install multiple versions. The default version of GCC probably won't be changed system wide... ever.
-Here is a list of packages we install as of 2017-05-02:
-<code>
-gcc
-gcc-4.7-uofc-cs
-gcc-4.9-uofc-cs
-gcc-5
-gcc-5-base:amd64
-gcc-5-multilib
-gcc-5.4-uofc-cs
-gcc-6-base:amd64
-gcc-6-base:i386
-gcc-6.3-uofc-cs
-gcc-7.1-uofc-cs
-</code>
 We are now taking more advantage of environment modules. This means depending on when you read this you could load the version of GCC you want to use.
 <code>
-kauffman3@green:~$ $ module --terse avail
+$ module --terse avail |grep gcc
 /etc/environment-modules/modules:
-cmake/3.1.1
+gcc/4.9.4
-cmake/3.8.0
+gcc/5.5.0
-gcc/4.7.4
+gcc/6.5.0
-gcc/4.9.3
+gcc/7.5.0
-gcc/5.4.0
+gcc/8.4.0
-gcc/6.3.0
+gcc/9.3.0
-gcc/7.1.0
+gcc/10.2.0
+</code>
+<code>
+$ module load gcc/4.9.4
+</code>
-kauffman3@green:~$ module load gcc/4.7.4
+<code>
+$ echo "$PATH | $INCLUDE | $LD_LIBRARY_PATH | $MANPATH"
+/usr/local/gcc/4.9.4/bin:/home/kauffman3/bin:/usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games:/opt/puppetlabs/bin
+| /usr/local/gcc/4.9.4/include | /usr/local/gcc/4.9.4/lib |
+/usr/local/gcc/4.9.4/man:/usr/share/man
+</code>
-kauffman3@green:~$ echo "$PATH | $INCLUDE | $LD_LIBRARY_PATH | $MANPATH"
+<code>
-/usr/local/gcc/4.7.4/bin:/home/kauffman3/bin:/usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games:/opt/puppetlabs/bin
+$ gcc --version
-| /usr/local/gcc/4.7.4/include | /usr/local/gcc/4.7.4/lib |
+gcc (GCC) 4.9.4
-/usr/local/gcc/4.7.4/man:/usr/share/man
+</code>
-kauffman3@green:~$ gcc --version
+<code>
-gcc (GCC) 4.7.4
+$ module unload gcc
-kauffman3@green:~$ module unload gcc/4.7.4
-kauffman3@green:~$ gcc --version
-gcc (Ubuntu 4.9.4-2ubuntu1~14.04.1) 4.9.4
 </code>
@@ Line 65: / Line 54: @@
 #!/bin/bash
-PREFIX="$HOME/.local/gcc/4.9.3"
+gccversion='7.1.0'
+PREFIX="$HOME/.local/gcc/${gccversion}"
-# Building gcc in $HOME
+# Building gcc
+gccversionuc="${gccversion//./_}"
 INSTALLDIR=/tmp/$USER
@@ Line 73: / Line 64: @@
 cd $INSTALLDIR
-svn co svn://gcc.gnu.org/svn/gcc/tags/gcc_4_9_3_release gcc-4.9.3
+svn co svn://gcc.gnu.org/svn/gcc/tags/gcc_${gccversionuc}_release gcc-${gccversion}
-cd gcc-4.9.3
+cd gcc-${gccversion}
 ./contrib/download_prerequisites
 cd ../
 mkdir objdir
 cd objdir
-$PWD/../gcc-4.9.3/configure \
+$PWD/../gcc-${gccversion}/configure \
   --prefix=$PREFIX \
   --enable-languages=c,c++,fortran,go \
@@ Line 90: / Line 81: @@
 # clean up
 rm -r $INSTALLDIR/objdir
 export PATH=$HOME/$PREFIX/bin:$PATH
@@ Line 99: / Line 89: @@
 echo "  export PATH=\$HOME/$PREFIX/bin:\$PATH"
 echo "  export LD_LIBRARY_PATH=\$HOME/$PREFIX/lib:\$LD_LIBRARY_PATH"
+</code>
+===== Troubleshooting =====
+==== 'module' command not found ====
+To resolve you may have to do the following:
+<code>
+source /etc/profile.d/modules.sh
 </code>