lsof: define linux C library type when using eglibc

lsof tries to compile a temp c source file and execute the binary to
determine linux C library type (file Configure, line 2689-2717).
It is inpracticable for cross-compilation and may have build issue on
some distros since it depends on host settings.

Fix below error when building for 64bit target on 64bit host:
[...]
| dsock.c:481:44: error: 'TCP_LISTEN' undeclared (first use in this function)
| dsock.c:482:45: error: 'TCP_CLOSING' undeclared (first use in this function)
[...]
| make: *** [dsock.o] Error 1

The actual issue exists in do_configure:
[...]
Testing C library type with cc ... done
Cannot determine C library type; assuming it is not glibc.

Which is in turn caused by missing 'gnu/stubs-32.h" when compiling
the temp c source file on host:
[...]
fatal error: gnu/stubs-32.h: No such file or directory compilation terminated.

file gnu/stubs-32.h is provided by 32bit glibc.

(From OE-Core rev: fbf22dfe1a0dca3fc7ac56e4fd274c0145efbc70)

Signed-off-by: Ting Liu <b28495@freescale.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-extended/lsof/lsof_4.85.bb

@@ -3,7 +3,7 @@ DESCRIPTION = "Lsof is a Unix-specific diagnostic tool. \
 Its name stands for LiSt Open Files, and it does just that."
 SECTION = "devel"
 LICENSE = "BSD"
-PR = "r1"
+PR = "r2"
 
 SRC_URI = "ftp://lsof.itap.purdue.edu/pub/tools/unix/lsof/lsof_${PV}.tar.bz2"
 
@@ -31,6 +31,11 @@ export LSOF_INCLUDE = "${STAGING_INCDIR}"
 do_configure () {
 	export LSOF_AR="${AR} cr"
 	export LSOF_RANLIB="${RANLIB}"
+        if [ "x${EGLIBCVERSION}" != "x" ];then
+                LINUX_CLIB=`echo ${EGLIBCVERSION} |sed -e 's,\.,,g'`
+                LINUX_CLIB="-DGLIBCV=${LINUX_CLIB}"
+                export LINUX_CLIB
+        fi
 	yes | ./Configure ${LSOF_OS}
 }