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-rw-r--r--configure.ac2
1 files changed, 1 insertions, 1 deletions
diff --git a/configure.ac b/configure.ac
index 9c3ea3c0..0c9f06b5 100644
--- a/configure.ac
+++ b/configure.ac
@@ -316,7 +316,7 @@ if test x$disable_battstat = xno; then
;;
# list of supported OS cores that do not use libapm
i386-*-freebsd*|*-*-netbsd*|*-*-openbsd*|*-*kfreebsd*-gnu)
- if [ -n "${OS_SYS}" ]; then
+ if test -n "${OS_SYS}"; then
ACPIINC="-I${OS_SYS}"
else
ACPIINC="-I/usr/src/sys"