/usr/share/gps/plug-ins/adacontrol.xml is in adacontrol 1.19r10-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 | <?xml version="1.0" ?>
<gprconfig>
<!-- This file is required to avoid messages of the kind -->
<!-- “ warning: no compiler specified for language "Adacontrol", -->
<!-- ignoring all of its sources ”. -->
<!-- Tell about the AdaCtl application -->
<compiler_description>
<name>AdaCtl</name> <!-- The name of the application -->
<!-- associated with the AdaControl -->
<!-- language -->
<version>DummyVersion</version>
<executable>adactl</executable> <!-- Trick here. See below -->
<languages>AdaControl</languages> <!-- The language name which AdaCtl -->
<!-- handles -->
<target>i386-pc-mingw32</target> <!-- You may have to add some -->
<!-- target-triplets here -->
<target>i686-pc-mingw32</target>
<target>pentium-mingw32msv</target>
<target>i386-pc-linux</target>
<target>i686-pc-linux</target>
<target>pentium-linux</target>
</compiler_description>
<!-- This is needed to associate AdaControl files to a none-existing -->
<!-- compiler. -->
<configuration>
<compilers>
<compiler name="AdaCtl" language="AdaControl" />
</compilers>
<config>
package Naming is
for Body_Suffix ("AdaControl") use ".aru";
end Naming;
package Compiler is
for Driver ("AdaControl") use ""; -- Use an empty string
end Compiler; -- here, instead of in the Executable tag
</config> <!-- See below to learn more -->
</configuration>
<!-- To understand this configuration file, have a look at -->
<!-- http://www.adacore.com/wp-content/files/auto_update/gprbuild-docs/html/gprbuild_ug.html#The-GPRconfig-knowledge-base -->
<!--
A trick is used to avoid GPRBuild warnings of the kind
“ warning: no compiler specified for language "Adacontrol", ignoring all
its sources ” when AdaControl is selected as one of the language in a
project (which is a good choice if you want to have AdaControl files
appearing in project view). Such a message can be confusing for a first
time user, who may believe something is going wrong with either AdaCtl or
GPS/GPRBuild. For a better user experience, this is nice to avoid such
erroneous warning messages.
In the compiler definition file in the gprconfig directory, use “adactl”
instead of the blank string which is supposed to means “not a compiler” but
which is not well handled by GPRBuild. The use of AdaCtl here, is just to be
an application GPRConfig will be able to find. Then, in the “package Compiler”
in the “configuration” section, use an empty string (at this place, not in the
compiler definition).
You may have to add some host-triplets where indicated if you want it
to work. Keep in mind GPRConfig believes this is a compiler.
More explanations : if you use an empty string in the compiler definition,
GPRConfig is supposed to handle this as an indication that the corresponding
language is on purpose not associated to any compiler. But it seems to
forget about it, and warns you it did not find a suitable compiler for
AdaControl files. So we must provide simething there, the name of an
application GPRConfig will be able to find. This is AdaCtl dummy's role here.
But for GPRConfig, a compiler definition is nothing without an associated
project chunck. This takes place in the <configuration> node. There, we
will have to provide an application a second time. This should be adactl
as well, but it will then fail, as AdaCtl will be hungry with the parameters
it will recieve then. Fortunately, there is a tip : we may use there, an
application which is not the same as the one specified in the compiler
definition (but both are still needed). And it appears it works fine to
give an empty string here. GPRBuild, unlike GPRConfig which is invoked
prior to GPRBuild, does not complains it did not find a compiler, and as
there is no compiler, it simply does not attempt to apply a compiler on
AdaControl files. This only works if given, may it be an empty string.
Giving an empty string is not the same as giving nothing.
In few words : when a language is not to be associated to a compiler,
do not use an empty string in the compiler definition, but use a dummy
application there, and use an empty string, instead, in the “package
Compiler” chunck in the configuration node.
Questions and comments : yannick_duchene@yahoo.fr
-->
</gprconfig>
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