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kconfig: Support building mconf with vendor sysroot ncurses 

Changes the final fallback path in the ncurses locator for mconf
to support host compilers with a non-default sysroot.

This is similar to the hardcoded search for ncurses under
'/usr/include', but can support compilers that keep their default
header and library directories elsewhere.

For nconfig, do nothing because the only vendor compiler I'm aware
of with this layout (Apple Clang) ships an ncurses version that's too
old for nconfig anyway.

Signed-off-by: John Millikin <john@john-millikin.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
zero-sugar-mainline-defconfig
John Millikin 2020-12-23 14:04:23 +09:00 committed by Masahiro Yamada
parent d39648eb67
commit c0f975af17
1 changed files with 3 additions and 1 deletions
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4
scripts/kconfig/mconf-cfg.sh
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@ -33,7 +33,9 @@ if [ -f /usr/include/ncurses/ncurses.h ]; then
exit 0
fi
if [ -f /usr/include/ncurses.h ]; then
# As a final fallback before giving up, check if $HOSTCC knows of a default
# ncurses installation (e.g. from a vendor-specific sysroot).
if echo '#include <ncurses.h>' | "${HOSTCC}" -E - >/dev/null 2>&1; then
echo cflags=\"-D_GNU_SOURCE\"
echo libs=\"-lncurses\"
exit 0