boost.sh

package: boost
version: "%(tag_basename)s"
tag: v1.68.0
source: https://github.com/alisw/boost.git
requires:
  - "GCC-Toolchain:(?!osx)"
  - Python-modules
  - libpng
  - lzma
build_requires:
  - "bz2"
prefer_system: (?!slc5)
prefer_system_check: |
  printf "#include \"boost/version.hpp\"\n# if (BOOST_VERSION < 106800 || BOOST_VERSION > 106899)\n#error \"Cannot use system's boost: boost 1.68 required.\"\n#endif\nint main(){}" | gcc -I$(brew --prefix boost)/include -xc++ - -o /dev/null
prepend_path:
  ROOT_INCLUDE_PATH: "$BOOST_ROOT/include"
---
#!/bin/bash -e

# Detect whether we can enable boost-python (internal boost detection is broken)
BOOST_PYTHON=1
python -c 'import sys; sys.exit(1 if sys.version_info < (2, 7) else 0)'                   && \
  pip --help &> /dev/null                                                                 && \
  printf '#include \"pyconfig.h"' | gcc -c $(python-config --includes) -xc -o /dev/null - || \
  unset BOOST_PYTHON
if [[ $CXXSTD && $CXXSTD -ge 17 ]]; then
  # Use C++14 to compile boost (even if we are using C++17 globally). Disable
  # boost_python on macOS due to an incompatibility with the Python headers.
  # See: https://github.com/boostorg/system/issues/26#issuecomment-413631998
  CXXSTD=14
  [[ $ARCHITECTURE == osx* ]] && unset BOOST_PYTHON || true
fi
[[ $BOOST_PYTHON ]] || { WITHOUT_PYTHON="--without-python"; unset PYTHON_VERSION; }

TMPB2=$BUILDDIR/tmp-boost-build
case $ARCHITECTURE in
  osx*) TOOLSET=darwin ;;
  *) TOOLSET=gcc ;;
esac

rsync -a $SOURCEDIR/ $BUILDDIR/
cd $BUILDDIR/tools/build
bash bootstrap.sh $TOOLSET
mkdir -p $TMPB2
./b2 install --prefix=$TMPB2
export PATH=$TMPB2/bin:$PATH
cd $BUILDDIR
b2 -q                        \
   -d2                       \
   ${JOBS+-j $JOBS}          \
   --prefix=$INSTALLROOT     \
   --build-dir=build-boost   \
   --disable-icu             \
   --without-context         \
   --without-coroutine       \
   --without-graph           \
   --without-graph_parallel  \
   --without-locale          \
   --without-math            \
   --without-mpi             \
   $WITHOUT_PYTHON           \
   --without-wave            \
   --debug-configuration     \
   toolset=$TOOLSET          \
   link=shared               \
   threading=multi           \
   variant=release           \
   ${CXXSTD:+cxxstd=$CXXSTD} \
   install
[[ $BOOST_PYTHON ]] && ls -1 "$INSTALLROOT"/lib/*boost_python* > /dev/null

# We need to tell boost libraries linking other boost libraries to look for them
# inside the same directory as the main ones, on macOS (@loader_path).
if [[ $ARCHITECTURE == osx* ]]; then
  for LIB in $INSTALLROOT/lib/libboost*.dylib; do
    otool -L $LIB | grep -v $(basename $LIB) | { grep -oE 'libboost_[^ ]+' || true; } | \
      xargs -I{} install_name_tool -change {} @loader_path/{} "$LIB"
  done
fi

# Modulefile
MODULEDIR="$INSTALLROOT/etc/modulefiles"
MODULEFILE="$MODULEDIR/$PKGNAME"
mkdir -p "$MODULEDIR"
cat > "$MODULEFILE" <<EoF
#%Module1.0
proc ModulesHelp { } {
  global version
  puts stderr "ALICE Modulefile for $PKGNAME $PKGVERSION-@@PKGREVISION@$PKGHASH@@"
}
set version $PKGVERSION-@@PKGREVISION@$PKGHASH@@
module-whatis "ALICE Modulefile for $PKGNAME $PKGVERSION-@@PKGREVISION@$PKGHASH@@"
# Dependencies
module load BASE/1.0 ${GCC_TOOLCHAIN_VERSION:+GCC-Toolchain/$GCC_TOOLCHAIN_VERSION-$GCC_TOOLCHAIN_REVISION} ${PYTHON_VERSION:+Python/$PYTHON_VERSION-$PYTHON_REVISION}
# Our environment
setenv BOOST_ROOT \$::env(BASEDIR)/$PKGNAME/\$version
prepend-path LD_LIBRARY_PATH \$::env(BOOST_ROOT)/lib
prepend-path ROOT_INCLUDE_PATH \$::env(BOOST_ROOT)/include
$([[ ${ARCHITECTURE:0:3} == osx ]] && echo "prepend-path DYLD_LIBRARY_PATH \$::env(BOOST_ROOT)/lib")
EoF