Comment 2 for bug 1155784

Thank you for taking the time to report this bug and helping to make Ubuntu better.

I have reproduced this in Precise. Note that I had to install devscripts to make your reproduction steps work. But I can't reproduce this in Raring.

However, I can successfully build php5 in Precise using sbuild (with --resolve-alternatives). Presumably the buildds can build it too. So I'm not sure that this is a bug.

It does seem wrong to me that debian/rules says:
        $(SHELL) debian/setup-mysql.sh $(MYSQL_PORT) $(MYSQL_DATA_DIR)
but debian/setup-mysql.sh has a shebang of #!/bin/sh. So what if the user's shell is bash? This is the case in Raring (5.4.9-4ubuntu2) too.

Setting Importance to Medium as a workaround (sbuild) is available. I'm still not sure whether this is a valid bug though, since I'm not sure what the expectations are for the buildability of packages outside of buildds.