f5a347c1dc
GCC14 now treats implicit int types as error so when check() from
check-lxdialog.sh is called to check whether we can link against ncurses
it will fail silently and the help text indicating to install ncurses is
printed.
However, this is not due to missing ncurses but once the stderr redirect
to /dev/null is removed we can see the root cause:
<stdin>:2:1: error: return type defaults to ‘int’ [-Wimplicit-int]
So, in order for menuconfig to work with GCC14 lets just specify the
return type of main() as int.
Npte that the upstream kconfig in the linux kernel source tree no longer
carries or uses the check-lxdialog.sh script since commit 1c5af5cf9308
(kconfig: refactor ncurses package checks for building mconf and nconf),
so there is no commit we can backport to our kconfig copy.
Signed-off-by: Robert Marko <robimarko@gmail.com>
Reviewed-by: Petr Vorel <petr.vorel@gmail.com>
Tested-by: Petr Vorel <petr.vorel@gmail.com>
[yann.morin.1998@free.fr: add note about upstream kernel]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
(cherry picked from commit a6210d28db)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
94 lines
2.1 KiB
Bash
Executable File
94 lines
2.1 KiB
Bash
Executable File
#!/bin/sh
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# SPDX-License-Identifier: GPL-2.0
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# Check ncurses compatibility
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# What library to link
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ldflags()
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{
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pkg-config --libs ncursesw 2>/dev/null && exit
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pkg-config --libs ncurses 2>/dev/null && exit
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for ext in so a dll.a dylib ; do
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for lib in ncursesw ncurses curses ; do
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$cc -print-file-name=lib${lib}.${ext} | grep -q /
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if [ $? -eq 0 ]; then
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echo "-l${lib}"
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exit
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fi
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done
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done
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exit 1
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}
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# Where is ncurses.h?
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ccflags()
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{
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if pkg-config --cflags ncursesw 2>/dev/null; then
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echo '-DCURSES_LOC="<ncurses.h>" -DNCURSES_WIDECHAR=1'
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elif pkg-config --cflags ncurses 2>/dev/null; then
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echo '-DCURSES_LOC="<ncurses.h>"'
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elif [ -f /usr/include/ncursesw/curses.h ]; then
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echo '-I/usr/include/ncursesw -DCURSES_LOC="<curses.h>"'
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echo ' -DNCURSES_WIDECHAR=1'
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elif [ -f /usr/include/ncurses/ncurses.h ]; then
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echo '-I/usr/include/ncurses -DCURSES_LOC="<ncurses.h>"'
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elif [ -f /usr/include/ncurses/curses.h ]; then
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echo '-I/usr/include/ncurses -DCURSES_LOC="<curses.h>"'
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elif [ -f /usr/include/ncurses.h ]; then
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echo '-DCURSES_LOC="<ncurses.h>"'
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else
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echo '-DCURSES_LOC="<curses.h>"'
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fi
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}
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# Temp file, try to clean up after us
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tmp=$(mktemp)
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trap "rm -f $tmp" 0 1 2 3 15
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# Check if we can link to ncurses
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check() {
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$cc -x c - -o $tmp 2>/dev/null <<'EOF'
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#include CURSES_LOC
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int main() {}
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EOF
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if [ $? != 0 ]; then
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echo " *** Unable to find the ncurses libraries or the" 1>&2
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echo " *** required header files." 1>&2
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echo " *** 'make menuconfig' requires the ncurses libraries." 1>&2
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echo " *** " 1>&2
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echo " *** Install ncurses (ncurses-devel or libncurses-dev " 1>&2
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echo " *** depending on your distribution) and try again." 1>&2
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echo " *** " 1>&2
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exit 1
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fi
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}
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usage() {
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printf "Usage: $0 [-check compiler options|-ccflags|-ldflags compiler options]\n"
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}
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if [ $# -eq 0 ]; then
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usage
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exit 1
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fi
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cc=""
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case "$1" in
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"-check")
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shift
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cc="$@"
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check
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;;
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"-ccflags")
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ccflags
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;;
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"-ldflags")
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shift
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cc="$@"
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ldflags
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;;
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"*")
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usage
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exit 1
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;;
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esac
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