Bugzilla Bug 131695

Beagle (0.2.5 and also the not yet in portage 0.2.6) does not build anymore for
me, this is with evo-sharp 0.11.0 (the same with 0.11.1) and gmime-2.2.1 (with
mono use-flag)

checking for IceConnectionNumber in -lICE... yes
checking X11/extensions/scrnsaver.h usability... yes
checking X11/extensions/scrnsaver.h presence... yes
checking for X11/extensions/scrnsaver.h... yes
checking for XScreenSaverQueryExtension in -lXss... yes
checking for GNOME_VFS... yes
checking for BEAGLE_UI... yes
checking for UIGLUE... yes
checking for LIBTRAYICON... yes
checking for EVO... configure: error: Could not find Evolution dependencies

!!! Please attach the following file when filing a report to bugs.gentoo.org:
!!! /var/tmp/portage/beagle-0.2.5/work/beagle-0.2.5/config.log

!!! ERROR: app-misc/beagle-0.2.5 failed.
Call stack:
  ebuild.sh, line 1521:   Called dyn_compile
  ebuild.sh, line 924:   Called src_compile
  beagle-0.2.5.ebuild, line 99:   Called econf '--enable-evolution'
'--enable-gui' '--enable-python' '--enable-libbeagle'
  ebuild.sh, line 526:   Called die

Sorry forgot before, from the config.log:

Variable 'exec_prefix' not defined in '/usr/lib/pkgconfig/evolution-sharp.pc'

checked again, works fine for me with 0.10.2, here's a diff for
evolution-sharp.pc between the two versions

-prefix=/usr
+exec_prefix=/usr
 libdir=${exec_prefix}/lib
-
-evolibdir=/usr/lib/evolution/2.6

 Name: Evolution#
 Description: Evolution# - Evolution .NET Binding
-Version: 0.11.1
+Version: 0.10.2
 Libs: -r:${libdir}/mono/evolution-sharp/evolution-sharp.dll

so no wonder beagle doesn't find exec_prefix

*** Bug 131789 has been marked as a duplicate of this bug. ***

please, see bug #132360

If anyone wants to speed up the process of getting this fixed, investigate and
post an explanation as to why it is needed. I just haven't been able to find
the time to do that yet - and I'm not going to blindly add a patch. Also
consider that things work (or at least, worked) as-is for me when I tested this
before adding to Portage.

Another thing you could do is change the patch into a sed call.

Thanks Daniel! 

Here's what I found; Manually configuring evolution-sharp-0.11.0, generates the
appropriate evolution-sharp.pc, which has the following defined

prefix=/usr
libdir=${prefix}/lib

However, Gentoo's version contains the following:

prefix=/usr
libdir=${exec_prefix}/lib

and since exec_prefix isn't defined, other applications die when looking up the
directory. 

I've traced the issue to sed command contained within the .ebuild:

 sed -i -e 's:^libdir.*:libdir=@libdir@:' \
                ${S}/*.pc.in || die

This line basically changes the following lines in evolution-sharp.pc.in:

libdir=${prefix}/lib

to

libdir=@libdir@

I checked the configure script and sure enough, @libdir@ is defined as:
libdir='${exec_prefix}/lib'

So it seems this sed command is what's causing the issue.

Now, in order to get beagle to find evolution-sharp dependencies, I had to
define exec_prefix to evolution-sharp.pc.in, but if we remove the sed command,
then the default will work.  Unfortunately, I haven't found exact information
as to why this sed command was added (Found reference to correct libdir in
pkgconfig in the changelog when evolution-sharp-0.10.2-r1.ebuild was added),
but I'm sure there was a good reason. It hasn't broken anything on my machine
so far though :-).




(In reply to comment #5)
> If anyone wants to speed up the process of getting this fixed, investigate and
> post an explanation as to why it is needed. I just haven't been able to find
> the time to do that yet - and I'm not going to blindly add a patch. Also
> consider that things work (or at least, worked) as-is for me when I tested this
> before adding to Portage.
> 
> Another thing you could do is change the patch into a sed call.
> 

The sed is added to all mono packages, because in Gentoo, we don't assume that
libraries go in {prefix}/lib - they actually go into /usr/lib64 on 64bit
setups.

Perhaps someone could look at how other mono libraries (gmime is one that
springs to mind) handle the exec_prefix thing.

Fixed in evolution-sharp-0.11.1, sorry for the delay