[PATCH 1/2] kconfig: add -e and -u options to *conf-cfg.sh scripts

[Masahiro Yamada <masahiroy@kernel.org>]

Set -e to make these scripts fail on the first error.

Set -u because these scripts are invoked by Makefile, and do not work
properly without necessary variables defined.

Both options are described in POSIX. [1]

[1]: https://pubs.opengroup.org/onlinepubs/009604499/utilities/set.html

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
---

 scripts/kconfig/gconf-cfg.sh | 2 ++
 scripts/kconfig/mconf-cfg.sh | 2 ++
 scripts/kconfig/nconf-cfg.sh | 2 ++
 scripts/kconfig/qconf-cfg.sh | 2 ++
 4 files changed, 8 insertions(+)

diff --git a/scripts/kconfig/gconf-cfg.sh b/scripts/kconfig/gconf-cfg.sh
index 040d8f338820..fc954c0538fa 100755
--- a/scripts/kconfig/gconf-cfg.sh
+++ b/scripts/kconfig/gconf-cfg.sh
@@ -1,6 +1,8 @@
 #!/bin/sh
 # SPDX-License-Identifier: GPL-2.0
 
+set -eu
+
 cflags=$1
 libs=$2
 
diff --git a/scripts/kconfig/mconf-cfg.sh b/scripts/kconfig/mconf-cfg.sh
index 1e61f50a5905..1bc304dc2f7d 100755
--- a/scripts/kconfig/mconf-cfg.sh
+++ b/scripts/kconfig/mconf-cfg.sh
@@ -1,6 +1,8 @@
 #!/bin/sh
 # SPDX-License-Identifier: GPL-2.0
 
+set -eu
+
 cflags=$1
 libs=$2
 
diff --git a/scripts/kconfig/nconf-cfg.sh b/scripts/kconfig/nconf-cfg.sh
index f871a2160e36..a20290b1a37d 100755
--- a/scripts/kconfig/nconf-cfg.sh
+++ b/scripts/kconfig/nconf-cfg.sh
@@ -1,6 +1,8 @@
 #!/bin/sh
 # SPDX-License-Identifier: GPL-2.0
 
+set -eu
+
 cflags=$1
 libs=$2
 
diff --git a/scripts/kconfig/qconf-cfg.sh b/scripts/kconfig/qconf-cfg.sh
index 0e113b0f2455..bb2df66363a8 100755
--- a/scripts/kconfig/qconf-cfg.sh
+++ b/scripts/kconfig/qconf-cfg.sh
@@ -1,6 +1,8 @@
 #!/bin/sh
 # SPDX-License-Identifier: GPL-2.0
 
+set -eu
+
 cflags=$1
 libs=$2
 bin=$3
-- 
2.43.0