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configure: add set -u

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In case of any unset variable, make ./configure exit with nonzero value;
an attempt to expand an unset variable is a bug in the script
(usually a spelling mistake) and those should not pass through
unnoticed.
This commit is contained in:
Tomi Ollila 2016-05-06 21:11:25 +03:00 committed by David Bremner
parent 43eb32527b
commit 124a67e96e
1 changed files with 5 additions and 2 deletions
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7
configure vendored
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@ -1,5 +1,7 @@
#! /bin/sh #! /bin/sh
set -u
# Test whether this shell is capable of parameter substring processing. # Test whether this shell is capable of parameter substring processing.
( option='a/b'; : ${option#*/} ) 2>/dev/null || { ( option='a/b'; : ${option#*/} ) 2>/dev/null || {
echo " echo "
@ -480,6 +482,7 @@ if pkg-config --exists valgrind; then
else else
printf "No (but that's fine).\n" printf "No (but that's fine).\n"
have_valgrind=0 have_valgrind=0
valgrind_cflags=
fi fi
printf "Checking for bash-completion (>= 1.90)... " printf "Checking for bash-completion (>= 1.90)... "
@ -490,11 +493,11 @@ else
WITH_BASH=0 WITH_BASH=0
fi fi
if [ -z "${EMACSLISPDIR}" ]; then if [ -z "${EMACSLISPDIR-}" ]; then
EMACSLISPDIR="\$(prefix)/share/emacs/site-lisp" EMACSLISPDIR="\$(prefix)/share/emacs/site-lisp"
fi fi
if [ -z "${EMACSETCDIR}" ]; then if [ -z "${EMACSETCDIR-}" ]; then
EMACSETCDIR="\$(prefix)/share/emacs/site-lisp" EMACSETCDIR="\$(prefix)/share/emacs/site-lisp"
fi fi