GNUstep under Ubuntu Linux

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 +Objective C 2.0 on a fresh install of Ubuntu 12.10 Server
 +
<pre> <pre>
-# -----------------------------------------------------------------+# Objective C 2.0 on a fresh install of Ubuntu 12.10 Server
-# Objective C 2.0 on Ubuntu (from source)+
-# -----------------------------------------------------------------+
-# PART 1: LIBOBJC2 from source (with ARC)+
-# PART 2: LIBDISPATCH from source+
-# ON UBUNTU 12.04 SERVER+
-# -----------------------------------------------------------------+
-# Step 1 based on David Chisnall (http://etoileos.com/news/archive/2011/08/14/1206/)+
-# Step 2 based on Chris Mowforth http://chris.mowforth.com/installing-grand-central-dispatch-on-linux)+
-# -----------------------------------------------------------------+
-# -----------------------------------------------------------------+
- +
-# ==============================+
-# ==============================+
-# PART 1: new libobjc2 on Ubuntu+
-# ==============================+
-# ==============================+
- +
-# --------------------------------------------------------------------+
-# Some examples to test Objective C and ARC once we get it installed+
-# --------------------------------------------------------------------+
 +# Dependencies
 +sudo aptitude install build-essential git subversion ninja cmake
 +# Dependencies for GNUStep Base
 +sudo aptitude install libffi-dev libxml2-dev libgnutls-dev libicu-dev
 +# Dependencies for libdispatch
 +sudo aptitude install libblocksruntime-dev libkqueue-dev libpthread-workqueue-dev autoconf libtool
cd ~ cd ~
- +git clone git://github.com/nickhutchinson/libdispatch.git
-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+
- +
- +
- +
-cat > main.m << EOF+
- +
-#import <stdio.h>+
-#import "Fraction.h"+
- +
-int main( int argc, const char *argv[] ) {+
- // create a new instance+
- Fraction *frac = [[Fraction alloc] init];+
- +
- // set the values+
- [frac setNumerator: 1];+
- [frac setDenominator: 3];+
- +
- // print it+
- printf( "The fraction is: " );+
- [frac print];+
- printf( "\n" );+
- +
- // free memory+
- [frac release];+
- +
- return 0;+
-}+
- +
-EOF+
- +
-cat > mainarc.m << EOF+
-#import <stdio.h>+
-#import "Fraction.h"+
- +
-int main( int argc, const char *argv[] ) {+
- // create a new instance+
- Fraction *frac = [[Fraction alloc] init];+
- +
- // set the values+
- [frac setNumerator: 1];+
- [frac setDenominator: 3];+
- +
- // print it+
- printf( "The fraction is: " );+
- [frac print];+
- printf( "\n" );+
- +
- // free memory+
- // [frac release]; // valgrind should show less leakage with -fobjc-arc+
- +
- return 0;+
-}+
- +
-EOF+
- +
- +
-# -----------------------------------------------------------------+
-# INITIAL REQUIREMENTS+
-# -----------------------------------------------------------------+
-sudo apt-get -y install build-essential subversion clang libicu-dev libxml2-dev libxml2 libgnutls-dev libssl-dev+
- +
-#sudo apt-get -y install gnustep # If you want old runtime+
-#sudo apt-get -y install gnustep-make +
-#sudo apt-get -y install libgnustep-base-dev+
- +
-sudo apt-get -y install gobjc # Def required for below.+
- +
-# --------------------------------------------------------------------+
-# TEST (may fail w/ segfault if you did not apt-get install gnustep)+
-# --------------------------------------------------------------------+
- +
-cd ~+
-gcc `gnustep-config --objc-flags` main.m Fraction.m -o test -lobjc -lgnustep-base+
-./test+
-clang `gnustep-config --objc-flags` main.m Fraction.m -o test -lobjc -lgnustep-base+
-./test+
- +
-# --------------------------------------------------------------------+
-# OK, let's install the new GNUstep from Subversion repositories!+
-# (based on David Chisnall http://etoileos.com/news/archive/2011/08/14/1206/)+
-# --------------------------------------------------------------------+
-mkdir gs+
-cd gs+
- +
-svn co svn://svn.gna.org/svn/gnustep/tools/make/trunk make+
svn co http://svn.gna.org/svn/gnustep/modules/core svn co http://svn.gna.org/svn/gnustep/modules/core
-svn co svn://svn.gna.org/svn/gnustep/libs/libobjc2/trunk libobjc+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
-# 1) Install GNUstep Make a first time.+svn co http://llvm.org/svn/llvm-project/cfe/trunk clang
-# --------------------------------------------------------------------+
- +
-cd ~/gs/make+
-export CC=clang +
-export CXX=clang++ +
-./configure --enable-debug-by-default --with-layout=fhs+
-make && sudo -E make install+
-. /usr/local/share/GNUstep/Makefiles/GNUstep.sh+
-cd ..+
- +
-cd ~/gs/core/base+
-./configure +
-make # On this FIRST TIME THRU, WILL SAY CAN'T BUILD NSBLOCKS for this runtime+
-sudo make install+
-cd ..+
- +
-# --------------------------------------------------------------------+
-# TEST (the resulting binary will segfault if we don't have a runtime)+
-# --------------------------------------------------------------------+
-cd ~+
-clang `gnustep-config --objc-flags` main.m Fraction.m -o test -lobjc -lgnustep-base+
 +cd ~/llvm
 +mkdir build
 +cd build
 +cmake ..
 +make -j8 # 8=your number of build CPUs
-# --------------------------------------------------------------------+echo "export PATH=\$PATH:~/llvm/build/bin" >> ~/.bashrc
-# 2) Build libobjc2+echo "export CC=clang" >> ~/.bashrc
-# --------------------------------------------------------------------+echo "export CXX=clang++" >> ~/.bashrc
-cd ~/gs/libobjc+source ~/.bashrc
-make -f Makefile+clang -v
-sudo make -f Makefile install+clang++ -v
-cd ..+
-# --------------------------------------------------------------------+cd ~/libobjc2
-# 3) NOW GO BACK, RECOMPILE GNUStep MAKE (TO DETECT THE NEW OBJC RUNTIME) +mkdir build
-# --------------------------------------------------------------------+cd build
 +cmake ..
 +make -j8
 +sudo -E make install
-cd ~/gs/make+cd ~/core/make
-./configure --enable-objc-nonfragile-abi --enable-native-objc-exceptions --with-layout=fhs --enable-debug-by-default CC=clang CXX=clang+++./configure --enable-debug-by-default --with-layout=gnustep
make && sudo -E make install make && sudo -E make install
-. /usr/local/share/GNUstep/Makefiles/GNUstep.sh+echo ". /usr/GNUstep/System/Library/Makefiles/GNUstep.sh" >> ~/.bashrc
-cd ..+source ~/.bashrc
-# --------------------------------------------------------------------+cd ~/core/base/
-# 4) AND THEN RECOMPILE CORE/BASE+./configure
-# --------------------------------------------------------------------+make -j8
 +sudo -E make install
-cd ~/core/base+cd ~/libdispatch
-./configure --disable-mixedabi CC=clang CXX=clang++ +sh autogen.sh
-make # THIS TIME THRU, NO COMPLAINTS ABOUT BLOCKS+./configure CFLAGS="-I/usr/include/kqueue" LDFLAGS="-lkqueue -lpthread_workqueue -pthread -lm"
-sudo make install+make -j8
-cd ..+sudo -E make install
 +sudo ldconfig
-# --------------------------------------------------------------------+# ----------------------------------------------------------------------------------------
-# 5) FINALLY TEST AGAIN AND ENJOY OBJECTIVE C WITH ARC+# TEST COMPILING SOME CODE FROM THE INTERNET
-# Note that I need to add GNUSTEP-CONFIG --OBJC-LIBS below.+# ----------------------------------------------------------------------------------------
-# If you don't want ARC, omit -fobj-arc+
-# --------------------------------------------------------------------+
-cd ~+You can compile the following code with:
-clang `gnustep-config --objc-flags` `gnustep-config --objc-libs` -fobj-arc -fobjc-nonfragile-abi mainarc.m Fraction.m -o test -lobjc -lgnustep-base+
-./test+
 +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` -fobj-arc -fobjc-runtime=gnustep -fblocks -lobjc -ldispatch -lgnustep-base Fraction.m helloGCD_objc.m
-# ============================== 
-# ============================== 
-# PART 2: libdispatch on Ubuntu 
-# ============================== 
-# ============================== 
-# --------------------------------------------------------------------+cat > blocktest.m << EOF
-# Some examples to test GCD once we get it installed+
-# --------------------------------------------------------------------+
- +
-cd ~+
- +
-cat > helloGCD.c << EOF+
-#include <dispatch/dispatch.h>+
#include <stdio.h> #include <stdio.h>
int main() { int main() {
- dispatch_queue_t queue = dispatch_queue_create(NULL, NULL); + void (^hello)(void) = ^(void) {
- + printf("Hello, block!\n");
- dispatch_sync(queue, ^{+ };
- printf("Hello, world from a dispatch queue!\n");+ hello();
- });+ return 0;
- +
- dispatch_release(queue);+
- +
- return 0;+
} }
- 
EOF EOF
-cat > helloGCD_objc.c << EOF+cat > helloGCD_objc.m << EOF
#include <dispatch/dispatch.h> #include <dispatch/dispatch.h>
Line 280: Line 107:
EOF EOF
-# --------------------------------------------------------------------+cat > Fraction.h << EOF
-# INSTALLING LIBDISPATCH+
-# (based on Chris Mowforth http://chris.mowforth.com/installing-grand-central-dispatch-on-linux)+
-# --------------------------------------------------------------------+
-sudo apt-get install clang libblocksruntime-dev libkqueue-dev+#import <Foundation/NSObject.h>
-# Visit http://packages.ubuntu.com/oneiric/libpthread-workqueue0 for download links+@interface Fraction: NSObject {
-# Visit http://packages.ubuntu.com/oneiric/libpthread-workqueue-dev for download link+ int numerator;
 + int denominator;
 +}
-mkdir dispatch+-(void) print;
-cd dispatch+-(void) setNumerator: (int) n;
-sudo apt-get install make autoconf autogen libtool build-essential gcc-multilib+-(void) setDenominator: (int) d;
-sudo apt-get install pkg-config+-(int) numerator;
 +-(int) denominator;
 +@end
-wget http://mirror.pnl.gov/ubuntu//pool/universe/libp/libpthread-workqueue/libpthread-workqueue0_0.8.2-1_amd64.deb+EOF
-wget http://mirror.pnl.gov/ubuntu//pool/universe/libp/libpthread-workqueue/libpthread-workqueue-dev_0.8.2-1_amd64.deb+
-sudo dpkg -i libpthread-workqueue0_0.8.2-1_amd64.deb  
-sudo dpkg -i libpthread-workqueue-dev_0.8.2-1_amd64.deb  
-wget http://archive.ubuntu.com/ubuntu/pool/universe/libd/libdispatch/libdispatch_0~svn197.orig.tar.gz+cat > Fraction.m << EOF
 +#import "Fraction.h"
 +#import <stdio.h>
-tar xvfz libdispatch_0~svn197.orig.tar.gz +@implementation Fraction
-cd libdispatch-0~svn197/+-(void) print {
- export CC=clang + printf( "%i/%i", numerator, denominator );
- export CXX=clang+++}
- make distclean+
- ./configure+
- make+
- # dispatch_starfish.o: In function `_dispatch_time_mach2nano':+-(void) setNumerator: (int) n {
- # dispatch_starfish.c:(.text+0x5bc): undefined reference to `_dispatch_host_time_data'+ numerator = n;
- # dispatch_starfish.c:(.text+0x5ea): undefined reference to `_dispatch_get_host_time_init'+}
- # /usr/bin/ld: .libs/dispatch_starfish: hidden symbol `_dispatch_host_time_data' isn't defined+
- # /usr/bin/ld: final link failed: Bad value+
- # clang: error: linker command failed with exit code 1 (use -v to see invocation)+
- # make[1]: *** [dispatch_starfish] Error 1+
- # make[1]: Leaving directory `/home/patryk/dispatch/libdispatch-0~svn197/testing'+
- # make: *** [all-recursive] Error 1+
- # --------------------------------------------------------------------+-(void) setDenominator: (int) d {
- # To fix compile, comment out build of "testing" from Makefile+ denominator = d;
- # --------------------------------------------------------------------+}
- make clean+-(int) denominator {
- sed "s/testing/#testing/" Makefile > Makefile.new+ return denominator;
- mv Makefile.new Makefile+}
- make+
- sudo make install+
- sudo ldconfig+
-# --------------------------------------------------------------------+-(int) numerator {
-# Testing+ return numerator;
-# --------------------------------------------------------------------+}
-# Plain C: When not compiling with libobjc2 (just plain C) on Ubuntu you must add -lBlocksRuntime+@end
-# --------------------------------------------------------------------+
- +
-clang -o hi helloGCD.c -fblocks -ldispatch -lBlocksRuntime+
-./hi+
- +
-clang -o hi helloGCD.c -fblocks -ldispatch+
-# /usr/bin/ld: /tmp/helloGCD-eXxFYY.o: undefined reference to symbol '_NSConcreteGlobalBlock'+
-# /usr/bin/ld: note: '_NSConcreteGlobalBlock' is defined in DSO /usr/lib/libBlocksRuntime.so.0 +
-# so try adding it to the linker command line+
-# /usr/lib/libBlocksRuntime.so.0: could not read symbols: Invalid operation+
-# clang: error: linker command failed with exit code 1 (use -v to see invocation)+
- +
- +
- +
-# --------------------------------------------------------------------+
-# Compiling Objective C with ARC and blocks and libdispatch+
-# --------------------------------------------------------------------+
-# Note: do not use -lBlocksRuntime here since Apple on is not +
-# compatible with the libobjc2 one which has its own. (Note from +
-# David Chisnall)+
-# --------------------------------------------------------------------+
- +
-clang `gnustep-config --objc-flags` `gnustep-config --objc-libs` -fobj-arc -fobjc-nonfragile-abi -fblocks helloGCD_objc.m Fraction.m -o test -lobjc -lgnustep-base -ldispatch+
-./test+
 +EOF
</pre> </pre>

Current revision

Objective C 2.0 on a fresh install of Ubuntu 12.10 Server 

# Objective C 2.0 on a fresh install of Ubuntu 12.10 Server

# Dependencies
sudo aptitude install build-essential git subversion ninja cmake
# Dependencies for GNUStep Base
sudo aptitude install libffi-dev libxml2-dev libgnutls-dev libicu-dev 
# Dependencies for libdispatch
sudo aptitude 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
make && sudo -E make install
echo ". /usr/GNUstep/System/Library/Makefiles/GNUstep.sh" >> ~/.bashrc
source ~/.bashrc

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` -fobj-arc -fobjc-runtime=gnustep -fblocks  -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




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
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