Robert,
Robert P. J. Day wrote:
i'm curious as to why common/Makefile hardcodes the compilation of cmd_pcmcia.c thusly:
COBJS-y += cmd_pcmcia.o
since i'm interested in building for a beagleboard, i have no interest in PCMCIA support, yet that source file will be compiled for me, even though the selection macro CONFIG_CMD_PCMCIA does exist and is defined by a number of other board configurations.
what seems stranger is that, even though that config macro exists, it isn't used in the Makefile but *is* tested in the source file itself to determine whether the "pinit" command will be compiled:
===== #if defined(CONFIG_CMD_PCMCIA)
If you look at the source code tree from a couple of years ago you'll see that the pattern you've discovered used to be the norm. Over time, people have been removing the source file wrappers and moving conditionality to the Makefiles. It's a work in progress, and help fixing things up is always appreciated.
regards, Ben