[PATCH v2] kconfig: menuconfig: pkg-config should base upon default configuration

[Silvio Fricke]

Since fc9c6e0 "menuconfig: optionally use pkg-config to detect ncurses
libs" we use pkg-config, but some cross toolchains (like yocto tc)
change the search pathes for pc files with some PKG_CONFIG_* environment
variables.

With this patch we ensure that we only get the host config options for
ncurses and don't mix with others not relevant settings.

Signed-off-by: Silvio Fricke <silvio.fricke@xxxxxxxxx>
---
 scripts/kconfig/lxdialog/check-lxdialog.sh | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/scripts/kconfig/lxdialog/check-lxdialog.sh b/scripts/kconfig/lxdialog/check-lxdialog.sh
index 9d2a4c5..a067d3c 100644
--- a/scripts/kconfig/lxdialog/check-lxdialog.sh
+++ b/scripts/kconfig/lxdialog/check-lxdialog.sh
@@ -1,6 +1,9 @@
 #!/bin/sh
 # Check ncurses compatibility
 
+unset PKG_CONFIG_PATH
+unset PKG_CONFIG_SYSROOT_DIR
+
 # What library to link
 ldflags()
 {
-- 
2.0.4

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