configure.ac: Fix build when libusb-1.0 not available.

The Saleae Logic16 needs libusb-1.0, thus disable this driver when
libusb-1.0 cannot be found.

diff --git a/configure.ac b/configure.ac
index fb4deaae14858db5641836bc526e4c1c12812104..94f4655844d92b3f85210ab9dcffb053494d5a48 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -188,10 +188,6 @@ AC_ARG_ENABLE(saleae-logic16, AC_HELP_STRING([--enable-saleae-logic16],
        [enable Saleae Logic16 support [default=yes]]),
        [HW_SALEAE_LOGIC16="$enableval"],
        [HW_SALEAE_LOGIC16=yes])
-AM_CONDITIONAL(HW_SALEAE_LOGIC16, test x$HW_SALEAE_LOGIC16 = xyes)
-if test "x$HW_SALEAE_LOGIC16" = "xyes"; then
-       AC_DEFINE(HAVE_HW_SALEAE_LOGIC16, 1, [Saleae Logic16 support])
-fi
 
 AC_ARG_ENABLE(serial-dmm, AC_HELP_STRING([--enable-serial-dmm],
        [enable serial DMM support [default=yes]]),
@@ -264,7 +260,7 @@ case "$host" in
                HW_IKALOGIC_SCANALOGIC2="no"; HW_KECHENG_KC_330B="no";
                HW_LASCAR_EL_USB="no";
                HW_UNI_T_DMM="no"; HW_VICTOR_DMM="no";
-               HW_ZEROPLUS_LOGIC_CUBE="no"])
+               HW_ZEROPLUS_LOGIC_CUBE="no"; HW_SALEAE_LOGIC16="no"])
 
        # Define HAVE_LIBUSB_1_0 in config.h if we found libusb-1.0.
        if test "x$have_libusb1_0" != "xno"; then
@@ -451,6 +447,11 @@ if test "x$HW_ZEROPLUS_LOGIC_CUBE" = "xyes"; then
        AC_DEFINE(HAVE_HW_ZEROPLUS_LOGIC_CUBE, 1, [ZEROPLUS Logic Cube support])
 fi
 
+AM_CONDITIONAL(HW_SALEAE_LOGIC16, test x$HW_SALEAE_LOGIC16 = xyes)
+if test "x$HW_SALEAE_LOGIC16" = "xyes"; then
+       AC_DEFINE(HAVE_HW_SALEAE_LOGIC16, 1, [Saleae Logic16 support])
+fi
+
 # Checks for header files.
 # These are already checked: inttypes.h stdint.h stdlib.h string.h unistd.h.
 AC_CHECK_HEADERS([fcntl.h sys/time.h termios.h])