Commit ae215b14 authored by Sam Ravnborg's avatar Sam Ravnborg
Browse files

kconfig: factor out ncurses check in a shell script 



Cleaning up the lxdialog Makefile by factoring out the
ncurses compatibility checks.
This made the checks much more obvious and easier to extend.

Signed-off-by: default avatarSam Ravnborg <sam@ravnborg.org>
parent d51bfb78

scripts/kconfig/lxdialog/Makefile

+12 −36
Original line number Diff line number Diff line 
HOST_EXTRACFLAGS := -DLOCALE 

ifeq ($(shell uname),SunOS)

HOST_LOADLIBES   := -lcurses

else

HOST_LOADLIBES   := -lncurses

endif

# Makefile to build lxdialog package

#



ifeq (/usr/include/ncurses/ncurses.h, $(wildcard /usr/include/ncurses/ncurses.h))

        HOST_EXTRACFLAGS += -I/usr/include/ncurses -DCURSES_LOC="<ncurses.h>"

else

ifeq (/usr/include/ncurses/curses.h, $(wildcard /usr/include/ncurses/curses.h))

        HOST_EXTRACFLAGS += -I/usr/include/ncurses -DCURSES_LOC="<ncurses/curses.h>"

else

ifeq (/usr/include/ncurses.h, $(wildcard /usr/include/ncurses.h))

        HOST_EXTRACFLAGS += -DCURSES_LOC="<ncurses.h>"

else

	HOST_EXTRACFLAGS += -DCURSES_LOC="<curses.h>"

endif

endif

endif

check-lxdialog   := $(srctree)/$(src)/check-lxdialog.sh

HOST_EXTRACFLAGS := $(shell $(CONFIG_SHELL) $(check-lxdialog) -ccflags)

HOST_LOADLIBES   := $(shell $(CONFIG_SHELL) $(check-lxdialog) -ldflags)

 

HOST_EXTRACFLAGS += -DLOCALE 



.PHONY: dochecklxdialog

$(obj)/dochecklxdialog:

	$(Q)$(CONFIG_SHELL) $(check-lxdialog) -check $(HOSTCC) $(HOST_LOADLIBES)



hostprogs-y	:= lxdialog

always		:= ncurses $(hostprogs-y)

always		:= $(hostprogs-y) dochecklxdialog



lxdialog-objs := checklist.o menubox.o textbox.o yesno.o inputbox.o \

		 util.o lxdialog.o msgbox.o
 


.PHONY: $(obj)/ncurses

$(obj)/ncurses:

	@echo "main() {}" > lxtemp.c

	@if $(HOSTCC) lxtemp.c  $(HOST_LOADLIBES); then \

		rm -f lxtemp.c a.out; \

	else \

		rm -f lxtemp.c; \

		echo -e "\007" ;\

		echo ">> Unable to find the Ncurses libraries." ;\

		echo ">>" ;\

		echo ">> You must install ncurses-devel in order" ;\

		echo ">> to use 'make menuconfig'" ;\

		echo ;\

		exit 1 ;\

	fi

scripts/kconfig/lxdialog/check-lxdialog.sh

0 → 100644
+67 −0
Original line number Diff line number Diff line 
#!/bin/sh

# Check ncurses compatibility



# What library to link

ldflags()

{

	if [ `uname` == SunOS ]; then

		echo '-lcurses'

	else

		echo '-lncurses'

	fi

}



# Where is ncurses.h?

ccflags()

{

	if [ -f /usr/include/ncurses/ncurses.h ]; then

		echo '-I/usr/include/ncurses -DCURSES_LOC="<ncurses.h>"'

	elif [ -f /usr/include/ncurses/curses.h ]; then

		echo '-I/usr/include/ncurses -DCURSES_LOC="<ncurses/curses.h>"'

	elif [ -f /usr/include/ncurses.h ]; then

		echo '-DCURSES_LOC="<ncurses.h>"'

	else

		echo '-DCURSES_LOC="<curses.h>"'

	fi

}



compiler=""

# Check if we can link to ncurses

check() {

	echo "main() {}" | $compiler -xc -

	if [ $? != 0 ]; then

		echo " *** Unable to find the ncurses libraries."          1>&2

		echo " *** make menuconfig require the ncurses libraries"  1>&2

		echo " *** "                                               1>&2

		echo " *** Install ncurses (ncurses-devel) and try again"  1>&2

		echo " *** "                                               1>&2

		exit 1

	fi

}



usage() {

	printf "Usage: $0 [-check compiler options|-header|-library]\n"

}



if [ $# == 0 ]; then

	usage

	exit 1

fi



case "$1" in

	"-check")

		shift

		compiler="$@"

		check

		;;

	"-ccflags")

		ccflags

		;;

	"-ldflags")

		ldflags

		;;

	"*")

		usage

		exit 1

		;;

esac