Use shell's version of if to check if the firmware really exists in the current directory to allow user rules to create the firmware (e.g. from a uuencoded blob).  make's version of if is evaluated too early to catch this.
Use shell's version of if to check if the firmware really exists in the
current directory to allow user rules to create the firmware (e.g. from a
uuencoded blob).  make's version of if is evaluated too early to catch this.

Found-by:	gallatin

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase