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kconfig/lxdialog/check-lxdialog.sh
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun Jun 13 23:38:37 2010 +0200 (2010-06-13)
changeset 1983 198a5a6e5239
parent 1229 8864e5255c2d
child 2125 4009fc9c47d5
permissions -rw-r--r--
cc/gcc: baremetal requires a two-pass process

Here, we implement a highly ugly hack. I'm not proud of that one...

To build the libstdc++ library, the compiler requires the C library. In
case we build for non-baremetal, this is normally handled by the final
step, later.

But in the case of bare-metal, we never go through the final step (because
it does not work, and it seems complex enough to make it work), so the
baremetal compilers are issued out of the core step. 
     1 #!/bin/sh

     2 # Check ncurses compatibility

     3 

     4 OS=`uname`

     5 

     6 # Under MACOS make sure that the macports-installed version is used.

     7 case "$OS" in

     8 	Darwin) BASEDIR="/opt/local";;

     9 	*)      BASEDIR="/usr";;

    10 esac

    11 

    12 INCLUDEPATH="${BASEDIR}/include"

    13 LIBPATH="${BASEDIR}/lib"

    14 

    15 # What library to link

    16 ldflags()

    17 {

    18 	for ext in so a dylib ; do

    19 		for lib in ncursesw ncurses curses ; do

    20 			if [ -f "${LIBPATH}/lib${lib}.${ext}" ]; then

    21 				echo "-L${LIBPATH} -l${lib}"

    22 				exit

    23 			fi

    24 		done

    25 	done

    26 	exit 1

    27 }

    28 

    29 # Where is ncurses.h?

    30 ccflags()

    31 {

    32 	if [ -f "${INCLUDEPATH}/ncursesw/ncurses.h" ]; then

    33 		echo "-I${INCLUDEPATH} \"-DCURSES_LOC=<ncursesw/ncurses.h>\""

    34 	elif [ -f "${INCLUDEPATH}/ncurses/ncurses.h" ]; then

    35 		echo "-I${INCLUDEPATH} \"-DCURSES_LOC=<ncurses/ncurses.h>\""

    36 	elif [ -f "${INCLUDEPATH}/ncursesw/curses.h" ]; then

    37 		echo "-I${INCLUDEPATH} \"-DCURSES_LOC=<ncursesw/curses.h>\""

    38 	elif [ -f "${INCLUDEPATH}/ncurses/curses.h" ]; then

    39 		echo "-I${INCLUDEPATH} \"-DCURSES_LOC=<ncurses/curses.h>\""

    40 	elif [ -f "${INCLUDEPATH}/ncurses.h" ]; then

    41 		echo "-I${INCLUDEPATH} \"-DCURSES_LOC=<ncurses.h>\""

    42 	elif [ -f "${INCLUDEPATH}/curses.h" ]; then

    43 		echo "-I${INCLUDEPATH} \"-DCURSES_LOC=<curses.h>\""

    44 	else

    45 		exit 1

    46 	fi

    47 }

    48 

    49 # Temp file, try to clean up after us

    50 tmp=.lxdialog.tmp

    51 trap "rm -f $tmp" 0 1 2 3 15

    52 

    53 # Check if we can link to ncurses

    54 check() {

    55         IF=`echo $(ccflags) | sed -e 's/"//g'`

    56         $cc $IF $(ldflags) -xc - -o $tmp 2>/dev/null <<'EOF'

    57 #include CURSES_LOC

    58 main() {}

    59 EOF

    60 	if [ $? != 0 ]; then

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

    62 	    echo " *** required header files."                            1>&2

    63 	    echo " *** 'make menuconfig' requires the ncurses libraries." 1>&2

    64 	    echo " *** "                                                  1>&2

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

    66 	    echo " *** "                                                  1>&2

    67 	    exit 1

    68 	fi

    69 }

    70 

    71 usage() {

    72 	printf "Usage: $0 [-check compiler options|-ccflags|-ldflags compiler options]\n"

    73 }

    74 

    75 if [ $# -eq 0 ]; then

    76 	usage

    77 	exit 1

    78 fi

    79 

    80 cc=""

    81 case "$1" in

    82 	"-check")

    83 		shift

    84 		cc="$@"

    85 		check

    86 		;;

    87 	"-ccflags")

    88 		ccflags

    89 		;;

    90 	"-ldflags")

    91 		shift

    92 		cc="$@"

    93 		ldflags

    94 		;;

    95 	"*")

    96 		usage

    97 		exit 1

    98 		;;

    99 esac
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