libpcap: Turn canusb support into PACKAGECONFIG

libpcap notices libusb in its configure if its sysrooted
and ignores it if its not. But this causes problems since
there is no explicit dependency on libusb. Rebuild from shared
state sometimes fails when libusb has not been yet populated
in sysroot and libpcap has. And do_configure of consumers of libpcap e.g. tcpdump
are probing for features on libpcap. All the tests fail since
none of link steps succeed and it sees as if libpcap does
not have required features and configure of tcpdump bails out.

turn canusb into PACKAGECONFIG and let it be disabled
by default.

Backport additional patches needed for disable-canusb to work

(From OE-Core rev: a7cfc0ce9885c51ccefcaba001e6672d7b3e36e5)

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 51 insertions, 0 deletions

diff --git a/meta/recipes-connectivity/libpcap/libpcap-1.3.0/0001-The-leading-comma-looked-weird-remove-it.patch b/meta/recipes-connectivity/libpcap/libpcap-1.3.0/0001-The-leading-comma-looked-weird-remove-it.patch
new file mode 100644
index 0000000000..06ca275b18
--- /dev/null
+++ b/meta/recipes-connectivity/libpcap/libpcap-1.3.0/0001-The-leading-comma-looked-weird-remove-it.patch
@@ -0,0 +1,51 @@
+Upstream-Status: Backport
+
+From fffa60a0693182085a7d4351150137eda26dbf82 Mon Sep 17 00:00:00 2001
+From: Guy Harris <guy@alum.mit.edu>
+Date: Wed, 13 Jun 2012 12:20:19 -0700
+Subject: [PATCH] The leading comma looked weird; remove it.
+
+That might be how the --disable-canusb bug got in.  Hopefully this will
+make the code look a little clearer and possibly avoid future bugs of
+that sort.
+---
+ configure.in |    9 ++++++---
+ 1 file changed, 6 insertions(+), 3 deletions(-)
+
+diff --git a/configure.in b/configure.in
+index d8554ca..ba5b64e 100644
+--- a/configure.in
++++ b/configure.in
+@@ -1371,7 +1371,8 @@ AC_SUBST(NETFILTER_SRC)
+ 
+ AC_ARG_ENABLE([bluetooth],
+ [AC_HELP_STRING([--enable-bluetooth],[enable Bluetooth support @<:@default=yes, if support available@:>@])],
+-,enable_bluetooth=yes)
++    [],
++    [enable_bluetooth=yes])
+ 
+ if test "x$enable_bluetooth" != "xno" ; then
+        dnl check for Bluetooth sniffing support
+@@ -1396,7 +1397,8 @@ fi
+ 
+ AC_ARG_ENABLE([canusb],
+ [AC_HELP_STRING([--enable-canusb],[enable canusb support @<:@default=yes, if support available@:>@])],
+-,enable_canusb=yes)
++    [],
++    [enable_canusb=yes])
+ 
+ if test "x$enable_canusb" != "xno" ; then
+        dnl check for canusb support
+@@ -1422,7 +1424,8 @@ fi
+ 
+ AC_ARG_ENABLE([can],
+ [AC_HELP_STRING([--enable-can],[enable CAN support @<:@default=yes, if support available@:>@])],
+-,enable_can=yes)
++    [],
++    [enable_can=yes])
+ 
+ if test "x$enable_can" != "xno" ; then
+        dnl check for CAN sniffing support
+-- 
+1.7.9.5
+