GNUstep under Ubuntu Linux

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-# Objective C 2.0 on a fresh install of Ubuntu 12.10 Server+The most simple way to get an up-to-date installation of GNUstep on Debian or Ubuntu is to add the [https://launchpad.net/~gnustep-dev/+archive/weekly GNUstep weekly PPA] to your distribution sources, provided by the GNUstep Developers team on Launchpad. On how to do this in detail, see the PPA page.
-# Patryk Laurent (http://pakl.net/)+ 
-# Dec 28, 2012+== Compiling manually ==
 + 
 +* Uses clang and libobjc2 for all the new features like ARC, Blocks, etc.
 +* Works with a fresh install and likely with a more completed installation.
 +* Works on Ubuntu 12.10 Server.
 +* Works on Ubuntu 13.10 Desktop.
 +* For Ubuntu 12.04 LTS Desktop, see bottom of the page for important info.
 + 
 +After this, you can try to install EtoileOS: see [[EtoileOS under Ubuntu Linux]].
<pre> <pre>
 +sudo apt-get install aptitude
# Dependencies # Dependencies
-sudo aptitude install build-essential git subversion ninja cmake+sudo aptitude -y install build-essential git subversion ninja cmake
# Dependencies for GNUStep Base # Dependencies for GNUStep Base
-sudo aptitude install libffi-dev libxml2-dev libgnutls-dev libicu-dev +sudo aptitude -y install libffi-dev libxml2-dev libgnutls-dev libicu-dev
# Dependencies for libdispatch # Dependencies for libdispatch
-sudo aptitude install libblocksruntime-dev libkqueue-dev libpthread-workqueue-dev autoconf libtool+sudo aptitude -y install libblocksruntime-dev libkqueue-dev libpthread-workqueue-dev autoconf libtool
 + 
cd ~ cd ~
git clone git://github.com/nickhutchinson/libdispatch.git git clone git://github.com/nickhutchinson/libdispatch.git
Line 39: Line 49:
cd ~/core/make cd ~/core/make
-./configure --enable-debug-by-default --with-layout=gnustep+./configure --enable-debug-by-default --with-layout=gnustep --enable-objc-nonfragile-abi
make && sudo -E make install make && sudo -E make install
echo ". /usr/GNUstep/System/Library/Makefiles/GNUstep.sh" >> ~/.bashrc echo ". /usr/GNUstep/System/Library/Makefiles/GNUstep.sh" >> ~/.bashrc
source ~/.bashrc source ~/.bashrc
 +
 +sudo /sbin/ldconfig
cd ~/core/base/ cd ~/core/base/
Line 62: Line 74:
You can compile the following code with: You can compile the following code with:
-clang `gnustep-config --objc-flags` `gnustep-config --objc-libs` -fobj-arc -fobjc-runtime=gnustep -fblocks -lobjc blocktest.m +clang `gnustep-config --objc-flags` `gnustep-config --objc-libs` -fobjc-runtime=gnustep -fblocks -fobjc-arc -lobjc blocktest.m
- +
-clang `gnustep-config --objc-flags` `gnustep-config --objc-libs` -fobj-arc -fobjc-runtime=gnustep -fblocks -lobjc -ldispatch -lgnustep-base Fraction.m helloGCD_objc.m+
 +clang `gnustep-config --objc-flags` `gnustep-config --objc-libs` -fobjc-runtime=gnustep -fblocks -lobjc -ldispatch -lgnustep-base Fraction.m helloGCD_objc.m
Line 153: Line 164:
EOF EOF
 +
 +
 +# ------------------------------------------------------
 +# ADDITIONAL OPTIONAL STEPS FOR INSTALLING GUI AND BACK
 +# (i.e., if you're running Ubuntu Desktop)
 +# ------------------------------------------------------
 +
 +sudo aptitude install -y libjpeg-dev libtiff-dev libffi-dev
 +sudo aptitude install -y libcairo-dev libx11-dev:i386 libxt-dev
 +
 +cd ~/core/gui
 +./configure
 +make -j8
 +sudo -E make install
 +
 +cd ~/core/back
 +./configure
 +make -j8
 +sudo -E make install
 +
 +You can compile the following code with:
 +
 +clang `gnustep-config --objc-flags` `gnustep-config --objc-libs` -fobjc-runtime=gnustep -fblocks -lobjc -fobjc-arc -ldispatch -lgnustep-base -lgnustep-gui guitest.m
 +
 +
 +
 +cat > guitest.m << EOF
 +#import <AppKit/AppKit.h>
 +
 +int main()
 +{
 +NSApplication *app; // Without these 2 lines, seg fault may occur
 +app = [NSApplication sharedApplication];
 +
 +NSAlert * alert = [[NSAlert alloc] init];
 +[alert setMessageText:@"Hello alert"];
 +[alert addButtonWithTitle:@"All done"];
 +[alert runModal];
 +}
 +EOF
 +
 +
</pre> </pre>
 +
 +
 +* General Note: When compiling, it is generally good to tell clang both the family and version of the runtime: -fobjc-runtime=gnustep-1.7
 +(The current version number can be had by looking at the latest ANNOUNCE filename in http://svn.gna.org/svn/gnustep/libs/libobjc2/trunk/ (e.g., ANNOUNCE.1.7))
 +
 +
 +<b>Ubuntu 12.04 Help</b>
 +
 +On Ubuntu 12.04, the default installed version of CMake is 2.8.7 but you need 2.8.8 or later to compile LLVM. And the default installed version of GCC and G++ is 4.6 but you need 4.8 or later to compile LLVM.
 +
 +For CMake, the solution is to download and compile CMake yourself. Use the existing CMake 2.8.7 and then replace it:
 +
 +# Download the latest CMake version from the CMake web site (http://www.cmake.org/cmake/resources/software.html), and uncompress it in a folder.
 +# Create a _build directory in the CMake sources folder.
 +# From the _build directory, run the following commands to build and install CMake from sources:
 +
 +<pre>
 +cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/usr
 +make
 +cpack -G DEB
 +sudo apt-get remove cmake cmake-data
 +sudo dpkg -i cmake*.deb
 +</pre>
 +
 +To get GCC and G++ 4.8, do the following:
 +
 +<pre>
 +sudo add-apt-repository ppa:ubuntu-toolchain-r/test
 +sudo apt-get update
 +sudo apt-get install gcc-4.8 g++-4.8
 +sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-4.8 50
 +sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-4.8 50
 +</pre>
 +
 +You should be good to go.

Revision as of 05:39, 10 February 2014

The most simple way to get an up-to-date installation of GNUstep on Debian or Ubuntu is to add the GNUstep weekly PPA to your distribution sources, provided by the GNUstep Developers team on Launchpad. On how to do this in detail, see the PPA page.

Compiling manually

  • Uses clang and libobjc2 for all the new features like ARC, Blocks, etc.
  • Works with a fresh install and likely with a more completed installation.
  • Works on Ubuntu 12.10 Server.
  • Works on Ubuntu 13.10 Desktop.
  • For Ubuntu 12.04 LTS Desktop, see bottom of the page for important info.

After this, you can try to install EtoileOS: see EtoileOS under Ubuntu Linux.

sudo apt-get install aptitude
# Dependencies
sudo aptitude -y install build-essential git subversion ninja cmake
# Dependencies for GNUStep Base
sudo aptitude -y install libffi-dev libxml2-dev libgnutls-dev libicu-dev 
# Dependencies for libdispatch
sudo aptitude -y install libblocksruntime-dev libkqueue-dev libpthread-workqueue-dev autoconf libtool

cd ~
git clone git://github.com/nickhutchinson/libdispatch.git
svn co http://svn.gna.org/svn/gnustep/modules/core
svn co http://svn.gna.org/svn/gnustep/libs/libobjc2/trunk libobjc2
svn co http://llvm.org/svn/llvm-project/llvm/trunk llvm
cd llvm/tools
svn co http://llvm.org/svn/llvm-project/cfe/trunk clang

cd ~/llvm
mkdir build
cd build
cmake ..
make -j8   # 8=your number of build CPUs

echo "export PATH=\$PATH:~/llvm/build/bin" >> ~/.bashrc
echo "export CC=clang"  >> ~/.bashrc
echo "export CXX=clang++" >> ~/.bashrc
source ~/.bashrc
clang -v
clang++ -v

cd ~/libobjc2
mkdir build
cd build
cmake ..
make -j8
sudo -E make install

cd ~/core/make
./configure --enable-debug-by-default --with-layout=gnustep --enable-objc-nonfragile-abi
make && sudo -E make install
echo ". /usr/GNUstep/System/Library/Makefiles/GNUstep.sh" >> ~/.bashrc
source ~/.bashrc

sudo /sbin/ldconfig

cd ~/core/base/
./configure
make -j8
sudo -E make install

cd ~/libdispatch
sh autogen.sh
./configure CFLAGS="-I/usr/include/kqueue" LDFLAGS="-lkqueue -lpthread_workqueue -pthread -lm"
make -j8
sudo -E make install
sudo ldconfig

# ----------------------------------------------------------------------------------------
# TEST COMPILING SOME CODE FROM THE INTERNET
# ----------------------------------------------------------------------------------------

You can compile the following code with:

clang `gnustep-config --objc-flags` `gnustep-config --objc-libs` -fobjc-runtime=gnustep -fblocks -fobjc-arc -lobjc  blocktest.m 

clang `gnustep-config --objc-flags` `gnustep-config --objc-libs` -fobjc-runtime=gnustep -fblocks -lobjc -ldispatch -lgnustep-base  Fraction.m helloGCD_objc.m



cat > blocktest.m << EOF
#include <stdio.h>

int main() {
    void (^hello)(void) = ^(void) {
        printf("Hello, block!\n");
    };
    hello();
    return 0;
}
EOF

cat > helloGCD_objc.m << EOF

#include <dispatch/dispatch.h>
#import <stdio.h>
#import "Fraction.h"

int main( int argc, const char *argv[] ) {
   dispatch_queue_t queue = dispatch_queue_create(NULL, NULL); 
   Fraction *frac = [[Fraction alloc] init];

   [frac setNumerator: 1];
   [frac setDenominator: 3];

   // print it
   dispatch_sync(queue, ^{
     printf( "The fraction is: " );
     [frac print];
     printf( "\n" );
   });
   dispatch_release(queue);

   return 0;
}

EOF

cat > Fraction.h << EOF

#import <Foundation/NSObject.h>

@interface Fraction: NSObject {
   int numerator;
   int denominator;
}

-(void) print;
-(void) setNumerator: (int) n;
-(void) setDenominator: (int) d;
-(int) numerator;
-(int) denominator;
@end

EOF


cat > Fraction.m << EOF
#import "Fraction.h"
#import <stdio.h>

@implementation Fraction
-(void) print {
   printf( "%i/%i", numerator, denominator );
}

-(void) setNumerator: (int) n {
   numerator = n;
}

-(void) setDenominator: (int) d {
   denominator = d;
}

-(int) denominator {
   return denominator;
}

-(int) numerator {
   return numerator;
}
@end

EOF


# ------------------------------------------------------
# ADDITIONAL OPTIONAL STEPS FOR INSTALLING GUI AND BACK
# (i.e., if you're running Ubuntu Desktop)
# ------------------------------------------------------

sudo aptitude install -y libjpeg-dev libtiff-dev libffi-dev
sudo aptitude install -y libcairo-dev libx11-dev:i386 libxt-dev

cd ~/core/gui
./configure
make -j8
sudo -E make install

cd ~/core/back
./configure
make -j8
sudo -E make install

You can compile the following code with:

clang `gnustep-config --objc-flags` `gnustep-config --objc-libs`  -fobjc-runtime=gnustep -fblocks -lobjc -fobjc-arc -ldispatch -lgnustep-base -lgnustep-gui  guitest.m



cat > guitest.m << EOF
#import <AppKit/AppKit.h>

int main()
{
NSApplication *app;  // Without these 2 lines, seg fault may occur
app = [NSApplication sharedApplication];

NSAlert * alert = [[NSAlert alloc] init];
[alert setMessageText:@"Hello alert"];
[alert addButtonWithTitle:@"All done"];
[alert runModal];
}
EOF



  • General Note: When compiling, it is generally good to tell clang both the family and version of the runtime: -fobjc-runtime=gnustep-1.7

(The current version number can be had by looking at the latest ANNOUNCE filename in http://svn.gna.org/svn/gnustep/libs/libobjc2/trunk/ (e.g., ANNOUNCE.1.7))


Ubuntu 12.04 Help

On Ubuntu 12.04, the default installed version of CMake is 2.8.7 but you need 2.8.8 or later to compile LLVM. And the default installed version of GCC and G++ is 4.6 but you need 4.8 or later to compile LLVM.

For CMake, the solution is to download and compile CMake yourself. Use the existing CMake 2.8.7 and then replace it:

  1. Download the latest CMake version from the CMake web site (http://www.cmake.org/cmake/resources/software.html), and uncompress it in a folder.
  2. Create a _build directory in the CMake sources folder.
  3. From the _build directory, run the following commands to build and install CMake from sources:
cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/usr
make
cpack -G DEB
sudo apt-get remove cmake cmake-data
sudo dpkg -i cmake*.deb

To get GCC and G++ 4.8, do the following:

sudo add-apt-repository ppa:ubuntu-toolchain-r/test
sudo apt-get update
sudo apt-get install gcc-4.8 g++-4.8
sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-4.8 50
sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-4.8 50

You should be good to go.