Fix saving CFLAGS in LIBVIRT_DRIVER_CHECK_LIBXL - LIBVIRT_CHECK_LIB will override old_CFLAGS, so use a different name. Signed-off-by: Marek Marczykowski-Górecki <marmarek(a)invisiblethingslab.com&gt; --- m4/virt-driver-libxl.m4 | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/m4/virt-driver-libxl.m4 b/m4/virt-driver-libxl.m4 index 2cc1c062d8..90338eb306 100644 --- a/m4/virt-driver-libxl.m4 +++ b/m4/virt-driver-libxl.m4 @@ -46,10 +46,10 @@ AC_DEFUN([LIBVIRT_DRIVER_CHECK_LIBXL], [ dnl The libxl driver will make use of this new parameter for specifying dnl the Xen migration stream version. Specify LIBXL_API_VERSION to trigger dnl an error if there is too old xenlight - old_CFLAGS="$CFLAGS" + libxlold_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS $LIBXL_API_VERSION" LIBVIRT_CHECK_LIB([LIBXL], [xenlight], [libxl_ctx_alloc], [libxl.h], [fail="1"]) - CFLAGS="$old_CFLAGS" + CFLAGS="$libxlold_CFLAGS" if test $fail = 1; then AC_MSG_ERROR([You must install the libxl Library from Xen >= 4.4 to compile libxenlight driver with -lxl]) -- 2.17.1