Building QtAda on Fedora

h1. Building QtAda on Fedora 16

First make sure you have the libgnat-static package installed. If you don't, you may get an error like the one in this bug:
https://bugzilla.redhat.com/show_bug.cgi?id=613407

Download the latest version of QtAda from http://www.qtada.com/en/download.html and extract the source.

You have to use the pre-packaged gela/ASIS code (I couldn't find another version that would work on Fedora). Do this with the following configure command:

./configure —without-gela<code>

On Fedora 16, with gcc version gcc-4.6.3-2.fc16.x86_64, there seems to be a bug that causes the compiler to crash when compiling examples/qt_ada/tasking/jobs.adb. You may get an error like the one shown below.

=GNAT BUG DETECTED
| 4.6.3 20120306 (Red Hat 4.6.3-2) (x86_64-redhat-linux-gnu) Assert_Failure sem_ch3.adb:13325|
| Error detected at qt_ada-object_unchecked_deallocation.ads:34:9 [jobs.adb:37:7]|
| Please submit a bug report; see http://gcc.gnu.org/bugs.html. |
| Use a subject line meaningful to you and us to track the bug. |
| Include the entire contents of this bug box in the report. |
| Include the exact gcc or gnatmake command that you entered. |
| Also include sources listed below in gnatchop format |
| (concatenated together with no headers between files). |
==

A QtAda developer has stated this is due to a bug in gcc, and that it should compile okay with gcc 4.7.

However, if you have gcc 4.6 and you want to get the examples to build, simply comment out the declaration of and call to the Free procedure in jobs.adb (but beware that using this example will then cause memory leaks).

Then simply run:<br />

make

And then as root (or a user with permissions to write to the install dir):
make install