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|
#!/bin/bash
#
# pbuilder hook script: choose optional compiler rather than default one
#
# Sometimes we want to choose other compiler than default, because of improving
# code to conform to standard, check compiler quality or so. This script will
# ease it. Try enable hook script and set "CHOOSE_COMPILER" variables as clang,
# gcc-*, or other compilers (note: however, now only clang and gcc can works
# well and others fails to build).
#
# i.e.)
# $ sudo CHOOSE_COMPILER="clang" pbuilder --build foobar_1.0-1.dsc
# $ sudo CHOOSE_COMPILER="gcc-4.6" pbuilder --build foobar_1.0-1.dsc
#
set -e
# check whether we are asked to change the compiler.
case "${CHOOSE_COMPILER}" in
clang)
newcc=/usr/bin/"${CHOOSE_COMPILER}"
newcxx=/usr/bin/"${CHOOSE_COMPILER}"++
;;
clang-*)
use_clang_version=${CHOOSE_COMPILER#clang-}
clang_package=clang-"${use_clang_version}"
newcc=/usr/bin/clang-"${use_clang_version}"
newcxx=/usr/bin/clang++-"${use_clang_version}"
;;
gcc-*)
use_gcc_version=${CHOOSE_COMPILER#gcc-}
gxx_package=g++-"${use_gcc_version}"
newcc=/usr/bin/"${CHOOSE_COMPILER}"
newcxx=/usr/bin/g++-"${use_gcc_version}"
;;
tcc)
newcc=/usr/bin/"${CHOOSE_COMPILER}"
newcxx=/bin/false
not_gcc_compat=1
;;
pcc)
newcc=/usr/bin/"${CHOOSE_COMPILER}"
newcxx=/bin/false
not_gcc_compat=1
;;
*)
exit 0
;;
esac
apt-get install -y "${APTGETOPT[@]}" "${CHOOSE_COMPILER}" "${gxx_package}" "${clang_package}"
if [ ! -x /usr/bin/"${CHOOSE_COMPILER}" ]; then
echo >&2 "E: Package ${CHOOSE_COMPILER} does not contain compiler driver?"
exit 1
fi
ln -sf "${newcc}" /usr/bin/cc
ln -sf "${newcxx}" /usr/bin/c++
if [ -z "${not_gcc_compat}" ]; then
(
cd /usr/bin
ln -sf "$newcc" gcc
ln -sf "$newcxx" g++
)
else
rm -f /usr/bin/gcc /usr/bin/g++
fi
exit 0
|
