We specify "true" as the fail-action for LIBVIRT_CHECK_PKG. This was used when we had a fallback to non-pkg-config detection, then removed in commit 5bdcef13d13560512c7d6d8c9e8822e456889e0c later re-introduced in commit dc3d2c9f8c7678a950abedd227b1587ca62335c4 and then left in when removing the old detection again in commit 18981877d2e20390a79d068861a24e716f8ee422 Remove it to properly error out when libxl was requested but not detected. Signed-off-by: Ján Tomko <jtomko(a)redhat.com&gt; Fixes: 18981877d2e20390a79d068861a24e716f8ee422 --- m4/virt-driver-libxl.m4 | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/m4/virt-driver-libxl.m4 b/m4/virt-driver-libxl.m4 index 2f3565f1d5..a958cb26fa 100644 --- a/m4/virt-driver-libxl.m4 +++ b/m4/virt-driver-libxl.m4 @@ -30,7 +30,7 @@ AC_DEFUN([LIBVIRT_DRIVER_CHECK_LIBXL], [ dnl search for libxl, aka libxenlight old_with_libxl="$with_libxl" - LIBVIRT_CHECK_PKG([LIBXL], [xenlight], [4.6.0], [true]) + LIBVIRT_CHECK_PKG([LIBXL], [xenlight], [4.6.0]) if test "x$with_libxl" = "xyes" ; then LIBXL_FIRMWARE_DIR=$($PKG_CONFIG --variable xenfirmwaredir xenlight) LIBXL_EXECBIN_DIR=$($PKG_CONFIG --variable libexec_bin xenlight) -- 2.24.1