Bug#1032008: mpich FTBFS on ppc64

[Adrian Bunk]

Source: mpich
Version: 4.0.1-1
Severity: important
Tags: ftbfs

https://buildd.debian.org/status/logs.php?pkg=mpich&arch=ppc64

...
checking for ucp/api/ucp.h... no
configure: error: --with-ucx is given but not found


This is due to the following in debian/rules:

UCX_ARCH:= amd64  ppc64el arm64
...
ifneq (,$(findstring  $(DEB_HOST_ARCH),$(UCX_ARCH)))
        DEVICE:= --with-device=ch4:ucx
	UCX:= --with-ucx=/usr
	#PMIX:=  --with-pmix=/usr/lib/$(DEB_HOST_MULTIARCH)/pmix2
endif


The problem is that "ppc64" is a substring of "ppc64el".

"filter" instead of "findstring" fixes the problem.