these packages use the obsolete SO_BSDCOMPAT:
bind
dietlibc (#define only)
pidgin
python
strace
syslogd

--- usr/include/asm-arm/socket.h
+++ usr/include/asm-arm/socket.h
@@ -21,7 +21,6 @@
 #define SO_NO_CHECK	11
 #define SO_PRIORITY	12
 #define SO_LINGER	13
-#define SO_BSDCOMPAT	14
 /* To add :#define SO_REUSEPORT 15 */
 #define SO_PASSCRED	16
 #define SO_PEERCRED	17
--- usr/include/asm-generic/socket.h
+++ usr/include/asm-generic/socket.h
@@ -21,7 +21,6 @@
 #define SO_NO_CHECK	11
 #define SO_PRIORITY	12
 #define SO_LINGER	13
-#define SO_BSDCOMPAT	14
 /* To add :#define SO_REUSEPORT 15 */
 
 #ifndef SO_PASSCRED /* powerpc only differs in these */
--- usr/include/asm-ia64/socket.h
+++ usr/include/asm-ia64/socket.h
@@ -30,7 +30,6 @@
 #define SO_NO_CHECK	11
 #define SO_PRIORITY	12
 #define SO_LINGER	13
-#define SO_BSDCOMPAT	14
 /* To add :#define SO_REUSEPORT 15 */
 #define SO_PASSCRED	16
 #define SO_PEERCRED	17
--- usr/include/asm-parisc/socket.h
+++ usr/include/asm-parisc/socket.h
@@ -30,7 +30,6 @@
 
 #define SO_NO_CHECK	0x400b
 #define SO_PRIORITY	0x400c
-#define SO_BSDCOMPAT	0x400e
 #define SO_PASSCRED	0x4010
 #define SO_PEERCRED	0x4011
 #define SO_TIMESTAMP	0x4012
--- usr/include/asm-powerpc/socket.h
+++ usr/include/asm-powerpc/socket.h
@@ -28,7 +28,6 @@
 #define SO_NO_CHECK	11
 #define SO_PRIORITY	12
 #define SO_LINGER	13
-#define SO_BSDCOMPAT	14
 /* To add :#define SO_REUSEPORT 15 */
 #define SO_RCVLOWAT	16
 #define SO_SNDLOWAT	17
--- usr/include/asm-s390/socket.h
+++ usr/include/asm-s390/socket.h
@@ -29,7 +29,6 @@
 #define SO_NO_CHECK	11
 #define SO_PRIORITY	12
 #define SO_LINGER	13
-#define SO_BSDCOMPAT	14
 /* To add :#define SO_REUSEPORT 15 */
 #define SO_PASSCRED	16
 #define SO_PEERCRED	17