[PATCH] Fix default firmware search paths

[Bryan Kadzban <bryan@xxxxxxxxxxxxxxxxxxxxx>]

"./configure --help" says the default firmware search path
(--with-firmware-path) is /lib/firmware/updates:/lib/firmware.  But the
actual default is:

[with_firmware_path="$rootprefix/lib/firmware/updates:$rootprefix/lib/firmware"]

and $rootprefix defaults to $ac_default_prefix, which is /usr, not the
empty string.

Fix this by changing the default with_firmware_path to explicitly match
the directories the kernel uses to install firmware.

(An alternative fix would be to change the help string for
--with-firmware-path to mention ${rootprefix}, although I think it'd be
a good idea to mention that flag's default of /usr as well, if this is
done.)

Signed-Off-By: Bryan Kadzban <bryan@xxxxxxxxxxxxxxxxxxxxx>

diff --git a/configure.ac b/configure.ac
index 9772d82..51dd7dd 100644
--- a/configure.ac
+++ b/configure.ac
@@ -96,7 +96,7 @@ AS_IF([test "x$enable_logging" = "xyes"], [ AC_DEFINE(ENABLE_LOGGING, [1], [Syst
 AC_ARG_WITH(firmware-path,
        AS_HELP_STRING([--with-firmware-path=DIR[[[:DIR[...]]]]],
           [Firmware search path (default=/lib/firmware/updates:/lib/firmware)]),
-       [], [with_firmware_path="$rootprefix/lib/firmware/updates:$rootprefix/lib/firmware"])
+       [], [with_firmware_path="/lib/firmware/updates:/lib/firmware"])
 OLD_IFS=$IFS
 IFS=:
 for i in $with_firmware_path; do