Source: gwc Version: 0.22-1 Severity: serious Tags: patch https://tests.reproducible-builds.org/debian/rb-pkg/unstable/amd64/gwc.html
... make -j15 make[1]: Entering directory '/build/1st/gwc-0.22' (cd meschach ; ./configure --with-sparse ; make part1 ; make part2 ; make part3 ; cp machine.h ..) ... In file included from stat.h:1:0, from stat.c:11: meschach/matrix.h:37:21: fatal error: machine.h: No such file or directory #include "machine.h" ^ ... creating machine.h ... dh_auto_build: make -j15 returned exit code 2 debian/rules:13: recipe for target 'build' failed make: *** [build] Error 2 I can reproduce this with: apt-get source gwc cd gwc-0.22 dpkg-buildpackage -B -J16 A proper fix would be to fix the Makefile dependencies, a sufficient workaround is the following change to disable parallel building: --- debian/rules.old 2017-07-19 09:26:35.000000000 +0000 +++ debian/rules 2017-07-19 09:26:55.000000000 +0000 @@ -10,7 +10,7 @@ --enable-mp3 %: - dh $@ + dh $@ --no-parallel override_dh_auto_configure: dh_auto_configure -- $(configure_flags)