nss: generate debug info

Because the build of nss seems to ignore CFLAGS, we never
have put source code in the -dbg package.  We do not address
the CFLAGS issue, but we do add -g to the definition of CC
so that we will generate debug info.

We also let package.bbclass populate the -dbg package instead
of forcing the contents locally.

(From OE-Core master rev: 0ec01bbd845b61798366441b2c7e5b8738db6b32)

(From OE-Core rev: 24a55a1e9658fdfd7b314ce1d9f40e0374990b7a)

Signed-off-by: Joe Slater <jslater@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-support/nss/nss.inc

@@ -74,8 +74,12 @@ do_compile() {
         export USE_64=1
     fi
 
-    make -C ./nss CCC="${CXX}" \
-        OS_TEST=${OS_TEST} \
+    # We can modify CC in the environment, but if we set it via an
+    # argument to make, nsinstall, a host program, will also build with it!
+    #
+    export CC="${CC} -g"
+    make -C ./nss CCC="${CXX} -g" \
+        OS_TEST=${OS_TEST}
 }
 
 
@@ -204,9 +208,6 @@ FILES_${PN}-dev = "\
     ${libdir}/pkgconfig/* \
     ${includedir}/* \
     "
-FILES_${PN}-dbg = "\
-    ${bindir}/.debug/* \
-    ${libdir}/.debug/* \
-    "
+# FILES_${PN}-dbg is populated automatically
 
 BBCLASSEXTEND = "native nativesdk"