%general-entities; ]> GCC-2953 &buildtime; 1.5 SBU &buildtime; 130 MB This package is known to behave badly when you have changed its default optimization flags (including the -march and -mcpu options). Therefore, if you have defined any environment variables that override default optimizations, such as CFLAGS and CXXFLAGS, we recommend un-setting or modifying them when building GCC. This is an older release of GCC which we are going to install for the purpose of compiling the Linux kernel in . This version is recommended by the kernel developers when you need absolute stability. Later versions of GCC have not received as much testing for Linux kernel compilation. Using a later version is likely to work, however, we recommend adhering to the kernel developer's advice and using the version here to compile your kernel. We don't install the C++ compiler or libraries here. However, there may be reasons why you would want to install them. More information can be found at . We'll install this older release of GCC into the non-standard prefix of /opt so as to avoid interfering with the system GCC already installed in /usr . Apply the patches and make a small adjustment: patch -Np1 -i ../gcc-&gcc-2953-version;-2.patch patch -Np1 -i ../gcc-&gcc-2953-version;-no-fixinc.patch patch -Np1 -i ../gcc-&gcc-2953-version;-returntype-fix.patch echo timestamp > gcc/cstamp-h.in The GCC documentation recommends building GCC outside of the source directory in a dedicated build directory: mkdir ../gcc-2-build cd ../gcc-2-build Compile and install the compiler: ../gcc-&gcc-2953-version;/configure --prefix=/opt/gcc-&gcc-2953-version; \ --enable-shared --enable-languages=c \ --enable-threads=posix make bootstrap make install