Alberto Bustamante

Compiling Erlang on Mac

Posted by Alberto - 05/11/09 at 11:11:59 pm

First of all you need to install XCode, because you will need GCC compiler. These are the steps I followed:

1. Download the latest version of Erlang. In my case, it was R13B02-1, so I got a file named otp_src_R13B02-1.tar.gz
2. After decompressing the file:

$ cd otp_src_R12B-2
$. /configure
$ make
$ sudo make install

These are the standard steps, but I had a problem with the “make” command. I got the following error:

gen/wxe_events.cpp: In function ‘void initEventTable()’:
gen/wxe_events.cpp:277: error: ‘wxEVT_COMMAND_AUINOTEBOOK_TAB_MIDDLE_DOWN’ was not declared in this scope
gen/wxe_events.cpp:278: error: ‘wxEVT_COMMAND_AUINOTEBOOK_TAB_MIDDLE_UP’ was not declared in this scope
gen/wxe_events.cpp:279: error: ‘wxEVT_COMMAND_AUINOTEBOOK_TAB_RIGHT_DOWN’ was not declared in this scope
gen/wxe_events.cpp:280: error: ‘wxEVT_COMMAND_AUINOTEBOOK_TAB_RIGHT_UP’ was not declared in this scope
gen/wxe_events.cpp:281: error: ‘wxEVT_COMMAND_AUINOTEBOOK_PAGE_CLOSED’ was not declared in this scope
gen/wxe_events.cpp:282: error: ‘wxEVT_COMMAND_AUINOTEBOOK_DRAG_DONE’ was not declared in this scope
gen/wxe_events.cpp:283: error: ‘wxEVT_COMMAND_AUINOTEBOOK_BG_DCLICK’ was not declared in this scope
make[4]: *** [i386-apple-darwin9.8.0/wxe_events.o] Error 1
make[3]: *** [release] Error 2
make[2]: *** [release] Error 2
make[1]: *** [release] Error 2
make: *** [install.libs] Error 2

The solution was to build Erlang without wxwidget support, so the steps I followed were:

$ cd otp_src_R12B-2
$. /configure
$ touch lib/wx/SKIP
$ make
$ sudo make install

Fix the Home and End keys in OS X

Posted by Alberto - 11/07/09 at 04:07:46 pm

There is one thing I dont like about Mac OS X: the behaviour of the Home, End, PagUp and PagDown keys. I you want the same behaviour than a Windows or Linux computer, open a text editor and write this:

{
“\UF729″ = “moveToBeginningOfLine:”;
“$\UF729″ = “moveToBeginningOfLineAndModifySelection:”;
“\UF72B” = “moveToEndOfLine:”;
“$\UF72B” = “moveToEndOfLineAndModifySelection:”;
“\UF72C” = “pageUp:”;
“\UF72D” = “pageDown:”;
}

Save the file as DefaultKeyBinding.dict into your ~/Library/KeyBindings directory and reboot your Mac.

Showing hidden files in Leopard

Posted by Alberto - 03/07/09 at 01:07:11 am

I’ve found a very useful widget. It adds a button to your dashboard to easily show or hide the hidden files in your system. Install it, press “Show”, and you will see your hidden files in Finder.

How to edit PATH variable on Mac

Posted by Alberto - 23/05/09 at 10:05:19 pm

If you need to change your PATH variables (or another environment variable, as CLASSPATH) on a Mac OS X, you need to edit a file called .profile located in your home directory. Open a terminal window and type:

open -e ~/.profile

In case you dont have a .profile file, you have to create it:

touch ~/.profile

You have to include a line like this:

export PATH=(path-you-want-to-add):$PATH

For example, lets imagine you want to add the file whatever.jar, located in your Documents folder. You would write:

export PATH=~/Documents/whatever.jar:$PATH

Easy, isnt it?

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