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-rwxr-xr-xextra/scripts/install_headers.sh7
1 files changed, 4 insertions, 3 deletions
diff --git a/extra/scripts/install_headers.sh b/extra/scripts/install_headers.sh
index dd6bc9aee..1b8d9c9ba 100755
--- a/extra/scripts/install_headers.sh
+++ b/extra/scripts/install_headers.sh
@@ -59,10 +59,11 @@ if ! test "$KERNEL_HEADERS" \
echo "Check KERNEL_HEADERS= in your .config file."
exit 1
fi
-# Do the copying only if src and dst dirs are not the same
+# Do the copying only if src and dst dirs are not the same.
# Be thorough: do not settle just for textual compare,
-# and guard against "pwd" being handled as shell builtin
-if test `(cd "$KERNEL_HEADERS"; env pwd)` != `(cd "$2"; env pwd)`; then
+# and guard against "pwd" being handled as shell builtin.
+# Double quoting looks weird, but it works (even bbox ash too).
+if test "`(cd "$KERNEL_HEADERS"; env pwd)`" != "`(cd "$2"; env pwd)`"; then
# NB: source or target files and directories may be symlinks,
# and for all we know, good reasons.
# We must work correctly in these cases. This includes "do not replace