Bug#976928: spass: FTBFS on ppc64el: iascanner.l:50:10: fatal error: iaparser.h: No such file or directory

[Adrian Bunk]

Control: retitle -1 spass sometimes FTBFS due to race condition
Control: tags -1 patch

On Wed, Dec 09, 2020 at 09:42:01AM +0100, Lucas Nussbaum wrote:
>...
> > iascanner.l:50:10: fatal error: iaparser.h: No such file or directory
> >    50 | #include "iaparser.h"
> >       |          ^~~~~~~~~~~~
> > compilation terminated.
> > make[1]: *** [makefile:239: iascanner.o] Error 1
>...

This is a race condition in parallel builds due to incomplete makefile
dependencies.

Workaroud:

--- debian/rules.old	2021-01-06 16:50:16.958225516 +0000
+++ debian/rules	2021-01-06 16:50:23.310221816 +0000
@@ -1,4 +1,4 @@
 #!/usr/bin/make -f
 
 %:
-	dh $@
+	dh $@ --no-parallel