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https://github.com/torvalds/linux
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7d5bb96629
The ncurses library allows for extended colors. The support for extended colors support depends on wide-character support. ncurses headers enable extended colors (NCURSES_EXT_COLORS) only when wide-character support is enabled (NCURSES_WIDECHAR). The "make menuconfig" uses wide-character ncursesw library, which can be compiled with wide-character support, but does not define NCURSES_WIDECHAR and it's using headers without wide-character (and extended colors) support. This fixes problems with colors on systems with enabled extended colors (like PLD Linux). Without this patch "make menuconfig" is hard to use. Signed-off-by: Krzysztof Mazur <krzysiek@podlesie.net> Signed-off-by: Michal Marek <mmarek@suse.cz>
86 lines
1.8 KiB
Bash
86 lines
1.8 KiB
Bash
#!/bin/sh
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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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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 [ -f /usr/include/ncursesw/curses.h ]; then
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echo '-I/usr/include/ncursesw -DCURSES_LOC="<ncursesw/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="<ncurses/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=.lxdialog.tmp
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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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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) 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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