The default shell on i386 stretch has some sort of problem with wildcard
expansion. Force usage of bash.
Change-Id: I923375128b7861ec5f7a2c2d77a50850f888035e
Since dh_auto_test doesn't execute the test suites through make
directly, but instead runs `make -s -n` and then executes the output,
the integrated build tests fail since the sub-make doesn't return an
error as it should when attempting to build with the wrong .h
alternative, resulting in always the first .h alternative being used.
Fix this by using a wrapper script instead.
Also adjust some other related minor build details.
closes#1202
Change-Id: I4b6436295c6b39117bd06df53aa5afc7118ad6a1