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On Tue, Apr 18, 2017 at 09:17:24AM +0000, J. Roeleveld wrote |
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> |
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> If you are certain you don't have gcc in slot 5.x installed. You |
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> can add palemoon to /etc/portage/package.unmask |
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> |
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> That will override the package.mask from the overlay. |
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|
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For the official contributed SSE version, I build with 4.9.4, as per |
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the developers' specs. At home I build with 5.4.0 for personal use. It |
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runs fine on Puppy Linux on a refurbished Lenovo T400 laptop, which uses |
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older glib, etc (with security fixes like "ghost" backported). I do not |
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have Gentoo's 5.4.0 installed. Instead, I've installed gcc-5.4.0 to |
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$HOME/gcc540 using the following script. Note the option |
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"--with-default-libstdcxx-abi=gcc4-compatible", which allows backward |
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compatability. |
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|
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I've disabled multilib, set my own CFLAGS, and your list of required |
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languages may differ from mine. Set MAKEOPTS as appropriate for your |
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machine. The following script downloads gcc-5.4.0 and additional lib |
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sources, and then builds gcc, which is installed in $HOME/gcc540 (no |
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root/sudo required). It can take a couple of hours or longer, depending |
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on how old your machine is. |
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|
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===================================================================== |
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#!/bin/bash |
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# |
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# Instructions adapted from https://gcc.gnu.org/wiki/InstallingGCC |
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wget http://ftpmirror.gnu.org/gcc/gcc-5.4.0/gcc-5.4.0.tar.bz2 |
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tar xjf gcc-5.4.0.tar.bz2 |
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|
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# |
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# To get gmp, mpc, mpfr, and isl libs |
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# You *MUST* run this script from the top-level GCC source dir |
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cd gcc-5.4.0 |
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contrib/download_prerequisites |
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|
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export CFLAGS="-O2 -march=native -mfpmath=sse -fomit-frame-pointer -pipe -fno-unwind-tables -fno-asynchronous-unwind-tables" |
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export CXXFLAGS="${CFLAGS}" |
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export MAKEOPTS="-j4" |
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|
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# |
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# You *MUST NOT* run ./configure from the toplevel GCC source dir |
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mkdir gcc-build && cd gcc-build |
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|
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../configure --prefix=$HOME/gcc540 \ |
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--disable-multilib \ |
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--enable-libstdcxx-threads \ |
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--enable-libstdcxx-time \ |
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--enable-shared \ |
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--enable-__cxa_atexit \ |
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--disable-libunwind-exceptions \ |
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--disable-libada \ |
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--with-default-libstdcxx-abi=gcc4-compatible |
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|
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make -j4 |
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|
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make install |
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===================================================================== |
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|
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The gcc in $HOME/gcc540 is not the default compiler. To invoke it, I |
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have to *SOURCE* the following commands to set up some variables to make |
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$HOME/gcc540 the default for this particular session... |
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|
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===================================================================== |
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export GCCX_ROOT=$HOME/gcc540 |
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export PATH=$GCCX_ROOT/bin:$PATH |
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export MANPATH=$GCCX_ROOT/share/man:MANPATH |
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export INFOPATH=$GCCX_ROOT/share/info:$INFOPATH |
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export LD_LIBRARY_PATH=$GCCX_ROOT/lib:$GCCX_ROOT/lib:$LD_LIBRARY_PATH |
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export LD_RUN_PATH=$GCCX_ROOT/lib:$GCCX_ROOT/lib:$LD_RUN_PATH |
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export LIBRARY_PATH=$GCCX_ROOT/lib:$GCCX_ROOT/lib:$LIBRARY_PATH |
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export INCLUDE_PATH=$GCCX_ROOT/include:$INCLUDE_PATH |
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export CPLUS_INCLUDE_PATH=$GCCX_ROOT/include:$CPLUS_INCLUDE_PATH |
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export C_INCLUDE_PATH=$GCCX_ROOT/include:$C_INCLUDE_PATH |
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===================================================================== |
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|
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-- |
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Walter Dnes <waltdnes@××××××××.org> |
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I don't run "desktop environments"; I run useful applications |
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