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authorJohn Millikin <john@john-millikin.com>2020-12-23 14:04:23 +0900
committerMasahiro Yamada <masahiroy@kernel.org>2021-01-04 10:38:11 +0900
commitc0f975af1745391749e4306aa8081b9a4d2cced8 (patch)
tree03185fbc6a00f5cf5103ca53c44fe37f33f98b72 /scripts
parentkconfig: config script: add a little user help (diff)
downloadlinux-dev-c0f975af1745391749e4306aa8081b9a4d2cced8.tar.xz
linux-dev-c0f975af1745391749e4306aa8081b9a4d2cced8.zip
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>
Diffstat (limited to 'scripts')
-rwxr-xr-xscripts/kconfig/mconf-cfg.sh4
1 files changed, 3 insertions, 1 deletions
diff --git a/scripts/kconfig/mconf-cfg.sh b/scripts/kconfig/mconf-cfg.sh
index aa68ec95620d..fcd4acd4e9cb 100755
--- a/scripts/kconfig/mconf-cfg.sh
+++ b/scripts/kconfig/mconf-cfg.sh
@@ -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