On Wed, Apr 11, 2012 at 02:57:23AM +0530, Atri wrote:
> Hi!
> I have been trying to get the vanilla (i.e., without any patches)
> svn/trunk version of plplot (rev 12185) to build on openSUSE Factory
> (which will become the next openSUSE release later). For the most part
> the build system works great.
>
> Unfortunately there is one issue with the svn version that is not
> present with the 5.9.9 release. It is that the cmake build system fails
> to detect the presence of the gnat library in my (openSUSE) system and
> turns off the ada bindings automatically.
> ==============================================
> -- Build files have been written
> to: /home/abuild/rpmbuild/BUILD/plplot/builddir/language_tests/Ada
> -- Check for working Ada builder: /usr/bin/gnatmake
> -- Check for working Ada builder: /usr/bin/gnatmake -- works
> -- gnat version =
> -- WARNING: gnat library not found. Disabling ada bindings
> ==============================================
>
> With plplot 5.9.9 and a small patch [2], this used to work perfectly
> fine on all versions of openSUSE, i.e., the build system would detect
> the presence of gnat 4.6 just fine. Please note that gnat is provided in
> openSUSE by the package named libada46 which is pulled in automatically
> when one installs gcc-ada (gcc46-ada), i.e., gnat is installed in an
> openSUSE system as a dependency of gcc-ada.
>
> For now, I have simply turned off the ada bindings for plplot trunk on
> openSUSE. However, I would be grateful if someone could point me to a
> real fix for the issue, so that I can get the ada bindings back on
> again.
>
Dear Atri,
Thanks for this. In svn there is an alternative fix to your patch
which checks for the version of gnat detected then looks for
the gnat-${VERSION} library. This avoids potential mismatches between
gnat compiler and library. Obviously this isn't working on your
system as the gnat version is given as blank above. Could you
1) Give me the output of gnatgcc --version.
2) Check what the gnat library is actually called. Should be
something like libgnat or libgnat-4.6
3) Try modifying cmake/modules/ada to output what CMAKE_Ada_Compiler
is actually set to (should be gnatgcc?)
Thanks
Andrew
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