Bug#806020: ecj: FTBFS when built with dpkg-buildpackage -A (No such file or directory)

[Santiago Vila]

Package: src:ecj
Version: 3.10.1-2
User: sanvila at debian.org
Usertags: binary-indep
Severity: important

Dear maintainer:

I tried to build this package with "dpkg-buildpackage -A"
(i.e. only architecture-independent packages), and it failed:

--------------------------------------------------------------------------------
[...]
 fakeroot debian/rules binary-indep
ls: cannot access /usr/bin/gcj: No such file or directory
test -x debian/rules
dh_testroot
dh_prep 
dh_installdirs -A 
mkdir -p "."
Adding cdbs dependencies to debian/libecj-java.substvars
dh_installdirs -plibecj-java 
mh_installpoms -plibecj-java
mh_installjar -plibecj-java -l debian/poms/ecj.pom build/dist/eclipse-ecj.jar \
	--usj-name=eclipse-ecj
Cannot find the jar to install: build/dist/eclipse-ecj.jar
debian/rules:183: recipe for target 'install/libecj-java' failed
make: *** [install/libecj-java] Error 2
dpkg-buildpackage: error: fakeroot debian/rules binary-indep gave error exit status 2
--------------------------------------------------------------------------------

Sorry not to have a fix, as I am reporting many bugs similar to
this one, but I can give some general hints:

* If all the arch-independent packages are dummy transitional packages
released with jessie, the easy fix is to drop them now.
 
* If not, debian/rules should be modified so that the binary-indep
target works in all cases, even when binary-arch is not used (this is
what the "Architecture: all" autobuilder does). For that:
    
* If you are using debhelper, you might want to use options -a and -i
for dh_* commands so that they do not act on packages they do not
have to act.

* Also, if you are using dh, the (independently) optional targets
override_dh_foo-arch and override_dh_foo-indep (for several values
of "foo") may be useful to write a debian/rules which behaves exactly
as desired.


After checking that both "dpkg-buildpackage -A" and "dpkg-buildpackage -B"
work properly, this package will be suitable to be uploaded in
source-only form if you wish (you might want to try it).

Thanks.