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Objective-C on Linux

Just run:

curl -ks | bash -
apt-get install -y build-essential
apt-get install -y clang
apt-get install -y libblocksruntime-dev
apt-get install -y libkqueue-dev
apt-get install -y libpthread-workqueue-dev
apt-get install -y gobjc
apt-get install -y libxml2-dev
apt-get install -y libjpeg-dev
apt-get install -y libtiff-dev
apt-get install -y libpng12-dev
apt-get install -y libcups2-dev
apt-get install -y libfreetype6-dev
apt-get install -y libcairo2-dev
apt-get install -y libxt-dev
apt-get install -y libgl1-mesa-dev
apt-get remove -y libdispatch-dev
# The following variables can be overridden from the command-line.
# e.g. | INSTALL_DIR=objc_test GNUSTEP_SOURCES=https://...mygnu bash -
mkdir ${INSTALL_DIR:=gnustep-dev}
cd ${INSTALL_DIR} || exit $?
# apt-get install required packages
date >> $(basename ${PWD}).log
echo 'Asking for sudo to run apt-get:'
curl -ks ${APT} | sudo bash -
} 2>&1 | tee -a $(basename ${PWD}).log
# Use clang
export CC=clang
# Install libobjc2
LIBOBJC2_DIR=$(basename ${LIBOBJC2##*/} .tar.gz)
[ -d ${LIBOBJC2_DIR} ] || curl -ks ${LIBOBJC2} | tar zx || exit $?
cd ${LIBOBJC2_DIR} || exit $?
date >../$(basename ${PWD}).log
echo 'Building '$(basename ${PWD})
make 2>&1 | tee -a ../$(basename ${PWD}).log
echo 'Asking for sudo to install '$(basename ${PWD})
sudo make install 2>&1 | tee -a ../$(basename ${PWD}).log
) || exit $?
# Install GNUStep from source
curl -ks ${GNUSTEP_SOURCES} | while read dl; do
pkg=$(basename ${dl##*/} .tar.gz)
echo 'Downloading '${pkg}
curl -ks ${dl} | tar vzx && cd ${pkg} || exit $?
sudo make install
} 2>&1 | tee ../$(basename ${PWD}).log
) 2>&1 | tee -a $(basename ${PWD}).log || exit $?
# Reinstall libdispatch-dev
sudo apt-get install -y libdispatch-dev
# Test it!
curl -ksO && {
clang `gnustep-config --objc-flags` \
-o main \
-x objective-c main.m \
-fconstant-string-class=NSConstantString \
-fobjc-nonfragile-abi \
-fblocks \
-lgnustep-base \
-lgnustep-gui \
-ldispatch \
-I/usr/include/GNUstep \
-L/usr/lib/GNUstep | tee -a $(basename ${PWD}).log
} && LD_LIBRARY_PATH=/usr/local/lib ./main
exit 0
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