GPIO Driver Build Issue

[pauldemet]

I have a Linux driver for a GPIO card that built fine with version 2.6.32. After upgrading to version 2.6.38 my driver will no longer build. I get the error "pthread.h: No such file or directory". I have verified that this file does in fact exist at /usr/include and that this directory is in the header search path. Don't know why the file is not seen.

The makefile is here:



MAJOR = 110

EXTRA_CFLAGS += -DMAJOR_NUM=$(MAJOR)

ifneq ($(KERNELRELEASE),) # called by kbuild
obj-m := uio48.o
else # called from command line
KERNEL_VERSION = `uname -r`
KERNELDIR := /lib/modules/$(KERNEL_VERSION)/build
PWD := $(shell pwd)
MODULE_INSTALLDIR = /lib/modules/$(KERNEL_VERSION)/kernel/drivers/gpio/

default:
$(MAKE) -C $(KERNELDIR) M=$(PWD) modules

uio48io.o: uio48io.c uio48.h Makefile
gcc -c $(EXTRA_CFLAGS) uio48io.c

all: default install poll flash

install:
mkdir -p $(MODULE_INSTALLDIR)
rm -f $(MODULE_INSTALLDIR)uio48.ko
install -c -m 0644 uio48.ko $(MODULE_INSTALLDIR)
/sbin/depmod -a

uninstall:
rm -f $(MODULE_INSTALLDIR)uio48.ko
/sbin/depmod -a

flash: flash.c uio48.h uio48io.o Makefile
gcc $(EXTRA_CFLAGS) -static flash.c uio48io.o -o flash
chmod a+x flash

poll: poll.c uio48.h uio48io.o Makefile
gcc $(EXTRA_CFLAGS) -D_REENTRANT -static poll.c uio48io.o -o poll -lpthread
chmod a+x poll

endif


clean:
rm -rf *.o *~ core .depend .*.cmd *.ko *.mod.c .tmp_versions /dev/uio48?

spotless:
rm -rf ioctl poll flash Module.* *.o *~ core .depend .*.cmd *.ko *.mod.c *.order .tmp_versions /dev/uio48?


The problem occurs when the default build is attempted.


Thanks in advance.

[pauldemet]

After further research, it appears that the include file path is different for make and for gcc. When I specifically call out the directory for pthread.h, the include file is seen. I have attempted to specify include directories on the command line with no luck.