Check ifw_hwaddr member for struct ifreq

It is used for ioctl(SIOCGIFHWADDR) return storage member, but does not
exist on Solaris, it uses ifr_addr.

Signed-off-by: OBATA Akio <obache@wizdas.com>
Signed-off-by: Slávek Banko <slavek.banko@axis.cz>

config.h.cmake

@@ -105,6 +105,12 @@
 // taskmanager
 #cmakedefine HAVE_XCOMPOSITE
 
+// kcontrol/nics
+#cmakedefine HAVE_IFREQ_IFR_HWADDR
+#ifndef HAVE_IFREQ_IFR_HWADDR
+#define ifr_hwaddr ifr_addr
+#endif
+
 // kcontrol/fonts
 #cmakedefine HAVE_FONTCONFIG 1
 #cmakedefine HAVE_FREETYPE2 1

kcontrol/ConfigureChecks.cmake

@@ -75,3 +75,8 @@ endif( )
 # if( FONTENC_FOUND )
 #     set( HAVE_FONT_ENC 1 CACHE INTERNAL "" FORCE )
 # endif( )
+
+
+##### check for ioctl(SIOCGIFHWADDR) return member
+
+check_struct_has_member( "struct ifreq" ifr_hwaddr net/if.h HAVE_IFREQ_IFR_HWADDR )