Installing Code::Blocks from source on Mac OS X

From Code::Blocks

These are instructions on how to build Code::Blocks under Apple Mac OS X. They have been tested under Mac OS X version 10.3, and should work under Mac OS X 10.4 (PowerPC and Intel) and old Mac OS X 10.2 and 10.1 as well.

We will be building everything from scratch using the source code, and not use any available package managers like DarwinPorts, Fink, Gentoo or RPM. Packaging can be done later, once it has reached a more stable release.

Update: building for DarwinPorts can be found at the end of the document.

Install Developer Tools

If they didn't come bundled with Mac OS X, get the Xcode Tools (or Developer Tools for older Mac OS X) from:

http://developer.apple.com/tools/

This will install Apple versions of:

Note: 2006/04 Apple pulled all the old links in order to promote Mac OS X 10.4, but all the old developer tools can be downloaded from ADC at http://connect.apple.com/

You need a (free) developer registration with Apple first, in order to log in there. For Mac OS X 10.4, you want (at least) Xcode 2.2, since earlier versions were buggy. For Mac OS X 10.3, you want Xcode 1.5. For Mac OS X 10.1-10.2, the latest Dev Tools.

Check Autotools versions

Depending on your OS version, you might need to download and compile new versions of these:

Check what you have, with --version (note that GNU libtool is called "glibtool" on Mac OS X)

Currently Code::Blocks requires versions:

  • autoconf 2.50+
  • automake 1.7+
  • libtool 1.4+

Automake example (Panther)

For Mac OS X 10.3, you will only need an upgraded (local) installation of automake 1.7.x.

You can download "automake-1.7.9.tar.gz" and configure and install it with something like: 

./configure --prefix=/usr/local --program-suffix=-1.7
make
sudo make install
sudo cp -pi /usr/share/aclocal/libtool.m4 /usr/local/share/aclocal-1.7/

Since it's now known as "automake-1.7", it won't interfere with the regular "automake"

FYI: Universal Binaries

If you are building for Mac OS X 10.4 or later, you might want to build "Universal Binaries " These are binaries that contain code for both PowerPC ("ppc" arch) and Intel ("i386" arch)

The basic flags that needs to be added are: 

CFLAGS += "-isysroot /Developer/SDKs/MacOSX10.4u.sdk -arch i386 -arch ppc"

CXXFLAGS += "-isysroot /Developer/SDKs/MacOSX10.4u.sdk -arch i386 -arch ppc"

(You only need the sysroot parameter on PowerPC Macintosh, not on a Intel Macintosh) The "-arch i386 -arch ppc" is what tells the compiler to build a "universal" (or "fat") binary.

Usually it's easiest to build one version for "powerpc-apple-darwin8", and one version for "i686-apple-darwin8", and then merge them with "lipo" 

./configure --host=powerpc-apple-darwin8 --target=powerpc-apple-darwin8

./configure --host=i686-apple-darwin8 --target=i686-apple-darwin8

Some caveats:

  • pre-compiled headers might fail with a "no main" error. If they do, add a -c to only compile them
  • when cross-compiling, tools like auto_revision might fail to build. copy these from a native build
  • the Tiger compilers might crash from time to time, but that is only to be expected (it seems)...

See Technical Note TN2137: Building Universal Binaries from "configure"-based Open Source Projects

Build wxWidgets 2.6

Download the Mac release

http://wxwidgets.org/downloads/#latest_stable

Don't forget to apply any released patches!

http://wxwidgets.org/downloads/patch.htm

Configure and (GNU) Make

mkdir mac-build
cd mac-build
../configure --enable-shared --enable-monolithic --with-mac --with-opengl \
            --with-png=builtin --with-jpeg=builtin --with-tiff=builtin --with-expat=builtin
nice make

note: the easiest way to build a Universal Binary with wxWidgets is the new flag: --enable-universal_binary (you need wxWidgets 2.6.3+)

Install into Destination

sudo make install

Install Subversion client

http://subversion.tigris.org/

Note: you need SVN-1.4.0 for Code::Blocks revision scripts to work!

Build CodeBlocks from SVN

Download the source code

https://www.codeblocks.org/source_code.shtml 

svn checkout svn://svn.berlios.de/codeblocks/trunk
cd trunk

Apply necessary patches

For a list of necessary patches, see below under "DarwinPorts", or:

http://developer.berlios.de/patch/?group_id=5358 

patch -p0 -i codeblocks-rev2970_pkgconfig.patch 
patch -p0 -i codeblocks-rev3146_pluginslib.patch

You might need to convert the line endings from DOS to Unix first.

Hopefully most of these should be merged upstream, before release:

(when they are, the above stand-alone patches might fail to apply)

Bootstrap with Autotools

You need to use the newer version of automake, for the "bootstrap": 

AUTOMAKE=automake-1.7 ACLOCAL=aclocal-1.7 ACLOCAL_FLAGS="-I /usr/share/aclocal" ./bootstrap

See above for how to compile and install automake-1.7 on Mac OS X.

Configure

./configure --enable-contrib

Note: the easiest way to build a Universal Binary for Code::Blocks is to build once for PowerPC (-arch ppc) and once for Intel (-arch i386), and then merge them (with lipo) afterwards. 

mkdir ppc-build
cd ppc-build
../configure --host=powerpc-apple-darwin8 --target=powerpc-apple-darwin8 --enable-contrib
cd ..

mkdir x86-build
cd x86-build
../configure --host=i686-apple-darwin8 --target=i686-apple-darwin8 --enable-contrib
cd ..

Note: You need to patch the location of the pre-compiled headers, or it will generate them in the same place for both arch.

Tiger Fix

There is a bug in the glibtool of Mac OS X 10.4, that fails to link C++ libs: 

ld: multiple definitions of symbol ___umoddi3
/usr/lib/gcc/powerpc-apple-darwin8/4.0.1/libgcc.a(_umoddi3.o) private external definition of ___umoddi3 in section (__TEXT,__text)
/usr/lib/gcc/powerpc-apple-darwin8/4.0.1/../../../libgcc_s.10.4.dylib(_umoddi3_s.o) definition of ___umoddi3

ld: multiple definitions of symbol ___umoddi3
/usr/lib/gcc/i686-apple-darwin8/4.0.1/libgcc.a(_umoddi3.o) private external definition of ___umoddi3 in section (__TEXT,__text)
/usr/lib/gcc/i686-apple-darwin8/4.0.1/../../../libgcc_s.10.4.dylib(_umoddi3_s.o) definition of ___umoddi3

To work around this, you need to edit the generated "libtool" script manually: 

177c177
< whole_archive_flag_spec="-all_load \$convenience"
---
> whole_archive_flag_spec=""
6921c6921
< whole_archive_flag_spec="-all_load \$convenience"
---
> whole_archive_flag_spec=""

This bug has been fixed in GNU libtool 1.5.8 and later.

(GNU) Make

nice make

For the Universal Binary build: 

cd ppc-build
nice make
cd ..

cd x86-build
nice make
cd ..

Install into Destination

sudo make install

For the Universal Binary build: 

cd ppc-build
make install DESTDIR=/tmp/ppc
cd ..

cd x86-build
make install DESTDIR=/tmp/x86
cd ..

lipomerge /tmp/ppc /tmp/x86 /tmp/fat

Where "lipomerge" is a custom shell script:

Bundle application for Mac

After building codeblocks in the regular Unix way, you need to bundle it with the icons and various other info that it needs to make a regular stand-alone Macintosh application.

There are two ways of accomplishing this, old Mac OS-style resource or NeXT-style bundle. The old resources are handy while developing, while bundles are more suitable for release.

Note: You need to use either of these methods, or your application will launch in the background behind all other windows and will be unable to receive any events!

Way One: Mac OS (resource)

http://developer.apple.com/documentation/Carbon/Reference/Resource_Manager/

Handy while developing, as you only need to add an icon.

Files needed:

First we install the program to the PREFIX directory of your choice: 

$PREFIX/bin
$PREFIX/lib
$PREFIX/share/codeblocks

Add a custom icon to the application, and make it receive events: 

gunzip CodeBlocks.r.gz
sudo /Developer/Tools/Rez -d __DARWIN__ -t APPL -d __WXMAC__ \
                          CodeBlocks.r Carbon.r -o $PREFIX/bin/codeblocks
sudo /Developer/Tools/SetFile -a C $PREFIX/bin/codeblocks

Note: on the Intel Macintoshes, the icon comes up as "broken" (apparently it assumes that all apps with resforks are Classic)

Without the icon part, this could also have be written as just: 

sudo `wx-config --rezflags` $PREFIX/bin/codeblocks

Start the application with a small prefix shell wrapper like this: 

DYLD_LIBRARY_PATH=$DYLD_LIBRARY_PATH:$PREFIX/lib
export DYLD_LIBRARY_PATH

$PREFIX/bin/codeblocks --prefix=$PREFIX

You don't need the "DYLD_LIBRARY_PATH" stuff, if you are installing to a system directory.

Common PREFIX Settings

Local: PREFIX=/usr/local

System: PREFIX=/usr

DarwinPorts: PREFIX=/opt/local

Fink: PREFIX=/sw

Way Two: NeXT (bundle)

http://developer.apple.com/documentation/CoreFoundation/Conceptual/CFBundles/

This does not involve resources, and is more relocatable.

Files needed:

The MacOS program will just be a shell wrapper that calls "bin/codeblocks", like above. Traditionally the bundle would include Frameworks and Resources, but we'll just avoid those here and use the regular "lib" and "share/codeblocks" instead (just as with a regular install). These temporary directories are listed in italic below, they're not really used in bundles...

Setup a hierarchy like this, and copy the files from the regular build/install and the above file list to it: 

 CodeBlocks.app
 CodeBlocks.app/Contents/
 CodeBlocks.app/Contents/Info.plist
 CodeBlocks.app/Contents/MacOS/
 CodeBlocks.app/Contents/MacOS/CodeBlocks
 CodeBlocks.app/Contents/Resources/
 CodeBlocks.app/Contents/Resources/app.icns
 CodeBlocks.app/Contents/bin/
 CodeBlocks.app/Contents/lib/
 CodeBlocks.app/Contents/share/codeblocks/

The CodeBlocks application can now be moved with the Finder, and started up like a regular Mac application. (the nightly build includes a more advanced Info.plist and more icons - for also mapping all the files that the application can open, like source code and header files and such)

Proper Application Bundling

To avoid the shell wrapper, the binary can now be moved from "bin/codeblocks" to "MacOS/CodeBlocks". Helper files are moved from "share/codeblocks" to "Resources". The dynamic libraries are moved from "lib" to "MacOS": 

mv bin/codeblocks MacOS/CodeBlocks
rmdir bin
mv lib/* MacOS/
rmdir lib
mv share/codeblocks/* Resources/
rmdir share/codeblocks
rmdir share

To avoid having to use a DYLD_LIBRARY_PATH, we rename the shared libraries (with the install_name_tool program) from e.g. /usr/local/lib/ to @executable_path/: 

install_name_tool -change /usr/local/lib/libcodeblocks.0.dylib \
                          @executable_path/libcodeblocks.0.dylib MacOS/CodeBlocks

The libraries can have their names changed using the -id parameter: 

install_name_tool -id @executable_path/libcodeblocks.0.dylib MacOS/libcodeblocks.0.dylib

You also need to change all of the loadable bundles for the plugins: 

for so in Resources/plugins/*.so
do install_name_tool -change /usr/local/lib/libcodeblocks.0.dylib \
                             @executable_path/libcodeblocks.0.dylib $so
done

You can check the result, what libraries/frameworks it links to, with: 

otool -L CodeBlocks

Optionally you can then repeat the process, for the wx library too...

FYI: Darwin vs. Mac OS X

"Darwin is the UNIX technology-based foundation of Mac OS X."

"Pure Darwin" here refers to the Open Source version of the OS:

(that is: Darwin using X11 instead of Aqua for the user interface)

Install with DarwinPorts

To build and install Code::Blocks, you will need:

The following need to go in the "files" directory:

Put the Portfile in your local DarwinPorts tree (usually in ~/dports - set up in /opt/local/etc/ports/sources.conf, create the directory if needed), as dports/devel/codeblocks/Portfile and download the helper files to dports/devel/codeblocks/files. (then do a chdir to dports, and run the /opt/local/bin/portindex command)

Optionally and for reference, you might want these:

The optional wxWidgets file go in graphics/wx{Mac,GTK}/Portfile. Normally the port uses the regular wxWidgets port from the DarwinPorts main, but that should in turn use wxMac on Mac OS X and wxGTK on Pure Darwin so it is all the same software. (the regular DarwinPorts version is broken now though, and hardcodes wxMac, see Ticket 10815)

After that set up has been done, you can install it with: 

sudo port install codeblocks

If you want the X11/GTK version on Mac OS X, instead use: 

sudo port install codeblocks -macosx+puredarwin

This will download the SVN trunk, and any dependencies: 

--->  Fetching codeblocks
--->  Verifying checksum(s) for codeblocks
--->  Extracting codeblocks
--->  Applying patches to codeblocks
--->  Configuring codeblocks
--->  Building codeblocks with target all
--->  Staging codeblocks into destroot
--->  Packaging tgz archive for codeblocks 1.0_0+macosx
--->  Installing codeblocks 1.0_0+macosx
--->  Activating codeblocks 1.0_0+macosx
--->  Cleaning codeblocks

After the build completes, you can start the program by: 

open /Applications/DarwinPorts/CodeBlocks.app

The non-bundled wxGTK version is instead started with: 

/opt/local/bin/codeblocks --prefix=/opt/local

There is also a wxGTK startup command in "DarwinPorts", that will first start up X11.app and then launch C::B. 

/Applications/DarwinPorts/CodeBlocks.command

Note that the wxMac application bundle in "DarwinPorts" is just a wrapper, with symbolic links to /opt/local...

Upgrade

Note: to upgrade from SVN, you need to uninstall first: 

sudo port uninstall codeblocks
sudo port clean codeblocks
sudo port install codeblocks

This is both because all SVN versions are numbered "0", but also due to a bug in the Code::Blocks build scripts.

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