gcc-12.2.0-0.build.sh

#! /bin/bash

# Note: Depending on the value in /proc/sys/vm/overcommit_memory (0|2)
#       results of make check differ, but neither one succeeds.

PKG=gcc
VERSION=12.2.0
BUILD=0
# URL=https://ftp.gnu.org/gnu/gcc/gcc-${VERSION}/gcc-${VERSION}.tar.gz
URL=https://beehive.molgen.mpg.de/d7644b494246450468464ffc2c2b19c3/gcc-12.2.0.tar.gz

PREFIX=/pkg/$PKG-$VERSION-$BUILD
if [ -n "$TESTING" ]; then PREFIX=/dev/shm/$PKG-$VERSION-$BUILD ; fi

set -xe
umask 022

BUILD_TMPDIR=/dev/shm/$PKG-$VERSION-$BUILD.build.tmp
test -d $BUILD_TMPDIR && ( chmod -R u+rwx $BUILD_TMPDIR || true ; rm -rf $BUILD_TMPDIR )
mkdir -p $BUILD_TMPDIR/home
export TMPDIR=$BUILD_TMPDIR
export HOME=$BUILD_TMPDIR/home

exec </dev/null

mkdir -p $PREFIX
cat >$PREFIX/profile <<-EOF
	PATH=$PREFIX/bin:\$PATH
	export LD_LIBRARY_PATH=$PREFIX/lib\${LD_LIBRARY_PATH:+:\$LD_LIBRARY_PATH}
	if [ -d $PREFIX/.compatlibs ]; then export LD_LIBRARY_PATH=$PREFIX/.compatlibs\${LD_LIBRARY_PATH:+:\$LD_LIBRARY_PATH} ; fi
EOF
. $PREFIX/profile

NPROC=$(( $(nproc) * 4 / 5 + 1 ))
export MAKEFLAGS="-j $NPROC"

BUILDDIR=$PREFIX/build

mkdir -p $BUILDDIR
cd $BUILDDIR

test -e gcc-${VERSION}.tar.gz || wget --no-verbose $URL
test -d gcc-$VERSION          || tar xvf gcc-${VERSION}.tar.gz
cd gcc-$VERSION
mkdir -p objdir
cd objdir
# Note on languages: go and lto are not part of the mpi default install,
#                    here they are enabled just for testing/fun
$BUILDDIR/gcc-$VERSION/configure \
  --prefix=$PREFIX \
  --enable-shared \
  --enable-threads=posix \
  --enable-__cxa_atexit \
  --enable-clocale=gnu \
  --enable-languages=c,fortran,c++,objc,obj-c++,go,lto \
  --disable-multilib \
  --with-system-zlib \
  --with-diagnostics-color=auto-if-env

make
# /dev/shm/gcc-8.4.0-0/build/gcc-8.4.0/objdir/check.log
make -k check |& tee check.log
make install

cd $PREFIX
mkdir -vp lib
ln -sfv ${PREFIX}/bin/cpp lib/
ln -sfv gcc bin/cc

install -v -dm755 lib/bfd-plugins
ln -sfv ../../libexec/gcc/$(gcc -dumpmachine)/$VERSION/liblto_plugin.so lib/bfd-plugins/

# and dump these ...
rm -v lib64/*-gdb.py

exit