diff --git a/libc-test/build.rs b/libc-test/build.rs
index 722a513c..db51310f 100644
--- a/libc-test/build.rs
+++ b/libc-test/build.rs
@@ -1082,11 +1082,6 @@ fn test_dragonflybsd(target: &str) {
             | "PORT_SOURCE_SIGNAL"
             | "PTHREAD_STACK_MIN" => true,
 
-            // These change all the time from release to release of linux
-            // distros, let's just not bother trying to verify them. They
-            // shouldn't be used in code anyway...
-            "AF_MAX" | "PF_MAX" => true,
-
             _ => false,
         }
     });
@@ -1582,7 +1577,7 @@ fn test_freebsd(target: &str) {
             // These constants were removed in FreeBSD 11 (svn r262489),
             // and they've never had any legitimate use outside of the
             // base system anyway.
-            "CTL_MAXID" | "KERN_MAXID" | "HW_MAXID" | "NET_MAXID"
+            "CTL_MAXID" | "KERN_MAXID" | "HW_MAXID"
             | "USER_MAXID" => true,
 
             _ => false,
diff --git a/src/fuchsia/aarch64.rs b/src/fuchsia/aarch64.rs
index b7abcd6a..259893c0 100644
--- a/src/fuchsia/aarch64.rs
+++ b/src/fuchsia/aarch64.rs
@@ -64,19 +64,3 @@ s! {
 
 pub const MINSIGSTKSZ: ::size_t = 6144;
 pub const SIGSTKSZ: ::size_t = 12288;
-
-#[doc(hidden)]
-#[deprecated(
-    since = "0.2.55",
-    note = "If you are using this report to: \
-            https://github.com/rust-lang/libc/issues/665"
-)]
-pub const PF_MAX: ::c_int = 43;
-#[doc(hidden)]
-#[deprecated(
-    since = "0.2.55",
-    note = "If you are using this report to: \
-            https://github.com/rust-lang/libc/issues/665"
-)]
-#[allow(deprecated)]
-pub const AF_MAX: ::c_int = PF_MAX;
diff --git a/src/fuchsia/x86_64.rs b/src/fuchsia/x86_64.rs
index 0f1a4e9e..dca3c247 100644
--- a/src/fuchsia/x86_64.rs
+++ b/src/fuchsia/x86_64.rs
@@ -150,19 +150,3 @@ pub const MAP_32BIT: ::c_int = 0x0040;
 
 pub const SIGSTKSZ: ::size_t = 8192;
 pub const MINSIGSTKSZ: ::size_t = 2048;
-
-#[doc(hidden)]
-#[deprecated(
-    since = "0.2.55",
-    note = "If you are using this report to: \
-            https://github.com/rust-lang/libc/issues/665"
-)]
-pub const AF_MAX: ::c_int = 42;
-#[doc(hidden)]
-#[deprecated(
-    since = "0.2.55",
-    note = "If you are using this report to: \
-            https://github.com/rust-lang/libc/issues/665"
-)]
-#[allow(deprecated)]
-pub const PF_MAX: ::c_int = AF_MAX;
diff --git a/src/unix/bsd/apple/mod.rs b/src/unix/bsd/apple/mod.rs
index 1b7c6253..85cbd2e1 100644
--- a/src/unix/bsd/apple/mod.rs
+++ b/src/unix/bsd/apple/mod.rs
@@ -2110,13 +2110,6 @@ pub const AF_SYSTEM: ::c_int = 32;
 pub const AF_NETBIOS: ::c_int = 33;
 pub const AF_PPP: ::c_int = 34;
 pub const pseudo_AF_HDRCMPLT: ::c_int = 35;
-#[doc(hidden)]
-#[deprecated(
-    since = "0.2.55",
-    note = "If you are using this report to: \
-            https://github.com/rust-lang/libc/issues/665"
-)]
-pub const AF_MAX: ::c_int = 40;
 pub const AF_SYS_CONTROL: ::c_int = 2;
 
 pub const SYSPROTO_EVENT: ::c_int = 1;
@@ -2157,23 +2150,6 @@ pub const PF_NATM: ::c_int =  AF_NATM;
 pub const PF_SYSTEM: ::c_int = AF_SYSTEM;
 pub const PF_NETBIOS: ::c_int = AF_NETBIOS;
 pub const PF_PPP: ::c_int =  AF_PPP;
-#[doc(hidden)]
-#[deprecated(
-    since = "0.2.55",
-    note = "If you are using this report to: \
-            https://github.com/rust-lang/libc/issues/665"
-)]
-#[allow(deprecated)]
-pub const PF_MAX: ::c_int =  AF_MAX;
-
-#[doc(hidden)]
-#[deprecated(
-    since = "0.2.55",
-    note = "If you are using this report to: \
-            https://github.com/rust-lang/libc/issues/665"
-)]
-#[allow(deprecated)]
-pub const NET_MAXID: ::c_int = AF_MAX;
 
 pub const NET_RT_DUMP: ::c_int = 1;
 pub const NET_RT_FLAGS: ::c_int = 2;
diff --git a/src/unix/bsd/freebsdlike/dragonfly/mod.rs b/src/unix/bsd/freebsdlike/dragonfly/mod.rs
index dadcda9c..3088b2dc 100644
--- a/src/unix/bsd/freebsdlike/dragonfly/mod.rs
+++ b/src/unix/bsd/freebsdlike/dragonfly/mod.rs
@@ -917,23 +917,8 @@ pub const TCP_FASTKEEP:   ::c_int = 128;
 pub const AF_BLUETOOTH: ::c_int = 33;
 pub const AF_MPLS: ::c_int = 34;
 pub const AF_IEEE80211: ::c_int = 35;
-#[doc(hidden)]
-#[deprecated(
-    since = "0.2.55",
-    note = "If you are using this report to: \
-            https://github.com/rust-lang/libc/issues/665"
-)]
-pub const AF_MAX: ::c_int = 36;
 
 pub const PF_BLUETOOTH: ::c_int = AF_BLUETOOTH;
-#[doc(hidden)]
-#[deprecated(
-    since = "0.2.55",
-    note = "If you are using this report to: \
-            https://github.com/rust-lang/libc/issues/665"
-)]
-#[allow(deprecated)]
-pub const PF_MAX: ::c_int = AF_MAX;
 
 pub const NET_RT_DUMP: ::c_int = 1;
 pub const NET_RT_FLAGS: ::c_int = 2;
@@ -942,15 +927,6 @@ pub const NET_RT_MAXID: ::c_int = 4;
 
 pub const SOMAXOPT_SIZE: ::c_int = 65536;
 
-#[doc(hidden)]
-#[deprecated(
-    since = "0.2.55",
-    note = "If you are using this report to: \
-            https://github.com/rust-lang/libc/issues/665"
-)]
-#[allow(deprecated)]
-pub const NET_MAXID: ::c_int = AF_MAX;
-
 pub const MSG_UNUSED09: ::c_int = 0x00000200;
 pub const MSG_NOSIGNAL: ::c_int = 0x00000400;
 pub const MSG_SYNC: ::c_int = 0x00000800;
diff --git a/src/unix/bsd/freebsdlike/freebsd/mod.rs b/src/unix/bsd/freebsdlike/freebsd/mod.rs
index d91765dc..9f11c202 100644
--- a/src/unix/bsd/freebsdlike/freebsd/mod.rs
+++ b/src/unix/bsd/freebsdlike/freebsd/mod.rs
@@ -646,13 +646,6 @@ pub const AF_BLUETOOTH: ::c_int = 36;
 pub const AF_IEEE80211: ::c_int = 37;
 pub const AF_INET_SDP: ::c_int = 40;
 pub const AF_INET6_SDP: ::c_int = 42;
-#[doc(hidden)]
-#[deprecated(
-    since = "0.2.55",
-    note = "If you are using this report to: \
-            https://github.com/rust-lang/libc/issues/665"
-)]
-pub const AF_MAX: ::c_int = 42;
 
 // https://github.com/freebsd/freebsd/blob/master/sys/net/if.h#L140
 pub const IFF_UP: ::c_int = 0x1; // (n) interface is up
@@ -959,14 +952,6 @@ pub const PF_BLUETOOTH: ::c_int = AF_BLUETOOTH;
 pub const PF_IEEE80211: ::c_int = AF_IEEE80211;
 pub const PF_INET_SDP: ::c_int = AF_INET_SDP;
 pub const PF_INET6_SDP: ::c_int = AF_INET6_SDP;
-#[doc(hidden)]
-#[deprecated(
-    since = "0.2.55",
-    note = "If you are using this report to: \
-            https://github.com/rust-lang/libc/issues/665"
-)]
-#[allow(deprecated)]
-pub const PF_MAX: ::c_int = AF_MAX;
 
 pub const NET_RT_DUMP: ::c_int = 1;
 pub const NET_RT_FLAGS: ::c_int = 2;
@@ -1003,10 +988,6 @@ pub const SHM_ANON: *mut ::c_char = 1 as *mut ::c_char;
 // compatibility only, and are scheduled to be removed in libc 1.0.0.
 #[doc(hidden)]
 #[deprecated(since="0.2.54",note="Removed in FreeBSD 11")]
-#[allow(deprecated)]
-pub const NET_MAXID: ::c_int = AF_MAX;
-#[doc(hidden)]
-#[deprecated(since="0.2.54",note="Removed in FreeBSD 11")]
 pub const CTL_MAXID: ::c_int = 10;
 #[doc(hidden)]
 #[deprecated(since="0.2.54",note="Removed in FreeBSD 11")]
diff --git a/src/unix/bsd/netbsdlike/netbsd/mod.rs b/src/unix/bsd/netbsdlike/netbsd/mod.rs
index c95b61af..f936eb51 100644
--- a/src/unix/bsd/netbsdlike/netbsd/mod.rs
+++ b/src/unix/bsd/netbsdlike/netbsd/mod.rs
@@ -883,22 +883,6 @@ pub const AF_BLUETOOTH: ::c_int = 31;
 pub const AF_IEEE80211: ::c_int = 32;
 pub const AF_MPLS: ::c_int = 33;
 pub const AF_ROUTE: ::c_int = 34;
-#[doc(hidden)]
-#[deprecated(
-    since = "0.2.55",
-    note = "If you are using this report to: \
-            https://github.com/rust-lang/libc/issues/665"
-)]
-pub const AF_MAX: ::c_int = 36;
-
-#[doc(hidden)]
-#[deprecated(
-    since = "0.2.55",
-    note = "If you are using this report to: \
-            https://github.com/rust-lang/libc/issues/665"
-)]
-#[allow(deprecated)]
-pub const NET_MAXID: ::c_int = AF_MAX;
 pub const NET_RT_DUMP: ::c_int = 1;
 pub const NET_RT_FLAGS: ::c_int = 2;
 pub const NET_RT_OOOIFLIST: ::c_int = 3;
@@ -914,15 +898,6 @@ pub const PF_BLUETOOTH: ::c_int = AF_BLUETOOTH;
 pub const PF_MPLS: ::c_int = AF_MPLS;
 pub const PF_ROUTE: ::c_int = AF_ROUTE;
 
-#[doc(hidden)]
-#[deprecated(
-    since = "0.2.55",
-    note = "If you are using this report to: \
-            https://github.com/rust-lang/libc/issues/665"
-)]
-#[allow(deprecated)]
-pub const PF_MAX: ::c_int = AF_MAX;
-
 pub const MSG_NBIO: ::c_int = 0x1000;
 pub const MSG_WAITFORONE: ::c_int = 0x2000;
 pub const MSG_NOTIFICATION: ::c_int = 0x4000;
diff --git a/src/unix/bsd/netbsdlike/openbsd/mod.rs b/src/unix/bsd/netbsdlike/openbsd/mod.rs
index 09739cb5..fbb22529 100644
--- a/src/unix/bsd/netbsdlike/openbsd/mod.rs
+++ b/src/unix/bsd/netbsdlike/openbsd/mod.rs
@@ -834,22 +834,6 @@ pub const AF_BLUETOOTH: ::c_int = 32;
 pub const AF_MPLS: ::c_int = 33;
 pub const pseudo_AF_PFLOW: ::c_int = 34;
 pub const pseudo_AF_PIPEX: ::c_int = 35;
-#[doc(hidden)]
-#[deprecated(
-    since = "0.2.55",
-    note = "If you are using this report to: \
-            https://github.com/rust-lang/libc/issues/665"
-)]
-pub const AF_MAX: ::c_int = 36;
-
-#[doc(hidden)]
-#[allow(deprecated)]
-#[deprecated(
-    since = "0.2.55",
-    note = "If you are using this report to: \
-            https://github.com/rust-lang/libc/issues/665"
-)]
-pub const NET_MAXID: ::c_int = AF_MAX;
 pub const NET_RT_DUMP: ::c_int = 1;
 pub const NET_RT_FLAGS: ::c_int = 2;
 pub const NET_RT_IFLIST: ::c_int = 3;
@@ -872,14 +856,6 @@ pub const PF_BLUETOOTH: ::c_int = AF_BLUETOOTH;
 pub const PF_MPLS: ::c_int = AF_MPLS;
 pub const PF_PFLOW: ::c_int = pseudo_AF_PFLOW;
 pub const PF_PIPEX: ::c_int = pseudo_AF_PIPEX;
-#[doc(hidden)]
-#[allow(deprecated)]
-#[deprecated(
-    since = "0.2.55",
-    note = "If you are using this report to: \
-            https://github.com/rust-lang/libc/issues/665"
-)]
-pub const PF_MAX: ::c_int = AF_MAX;
 
 pub const SCM_TIMESTAMP: ::c_int = 0x04;
 
diff --git a/src/unix/haiku/mod.rs b/src/unix/haiku/mod.rs
index f8f6ca98..7bb3285a 100644
--- a/src/unix/haiku/mod.rs
+++ b/src/unix/haiku/mod.rs
@@ -800,13 +800,6 @@ pub const AF_NOTIFY: ::c_int = 8;
 pub const AF_LOCAL: ::c_int = 9;
 pub const AF_UNIX: ::c_int = AF_LOCAL;
 pub const AF_BLUETOOTH: ::c_int = 10;
-#[doc(hidden)]
-#[deprecated(
-    since = "0.2.55",
-    note = "If you are using this report to: \
-            https://github.com/rust-lang/libc/issues/665"
-)]
-pub const AF_MAX: ::c_int = 11;
 
 pub const IP_OPTIONS: ::c_int = 1;
 pub const IP_HDRINCL: ::c_int = 2;
diff --git a/src/unix/linux_like/android/mod.rs b/src/unix/linux_like/android/mod.rs
index 26622629..7cc32b08 100644
--- a/src/unix/linux_like/android/mod.rs
+++ b/src/unix/linux_like/android/mod.rs
@@ -952,22 +952,6 @@ pub const SOL_ATALK: ::c_int = 258;
 pub const SOL_NETROM: ::c_int = 259;
 pub const SOL_ROSE: ::c_int = 260;
 
-#[doc(hidden)]
-#[deprecated(
-    since = "0.2.55",
-    note = "If you are using this report to: \
-            https://github.com/rust-lang/libc/issues/665"
-)]
-pub const AF_MAX: ::c_int = 43;
-#[doc(hidden)]
-#[deprecated(
-    since = "0.2.55",
-    note = "If you are using this report to: \
-            https://github.com/rust-lang/libc/issues/665"
-)]
-#[allow(deprecated)]
-pub const PF_MAX: ::c_int = AF_MAX;
-
 /* DCCP socket options */
 pub const DCCP_SOCKOPT_PACKET_SIZE: ::c_int = 1;
 pub const DCCP_SOCKOPT_SERVICE: ::c_int = 2;
diff --git a/src/unix/linux_like/emscripten/mod.rs b/src/unix/linux_like/emscripten/mod.rs
index 63e3e13f..67631fcc 100644
--- a/src/unix/linux_like/emscripten/mod.rs
+++ b/src/unix/linux_like/emscripten/mod.rs
@@ -921,25 +921,10 @@ pub const AF_IB: ::c_int = 27;
 pub const AF_MPLS: ::c_int = 28;
 pub const AF_NFC: ::c_int = 39;
 pub const AF_VSOCK: ::c_int = 40;
-#[doc(hidden)]
-#[deprecated(
-    since = "0.2.55",
-    note = "If you are using this report to: \
-            https://github.com/rust-lang/libc/issues/665"
-)]
-pub const AF_MAX: ::c_int = 42;
 pub const PF_IB: ::c_int = AF_IB;
 pub const PF_MPLS: ::c_int = AF_MPLS;
 pub const PF_NFC: ::c_int = AF_NFC;
 pub const PF_VSOCK: ::c_int = AF_VSOCK;
-#[doc(hidden)]
-#[allow(deprecated)]
-#[deprecated(
-    since = "0.2.55",
-    note = "If you are using this report to: \
-            https://github.com/rust-lang/libc/issues/665"
-)]
-pub const PF_MAX: ::c_int = AF_MAX;
 
 // System V IPC
 pub const IPC_PRIVATE: ::key_t = 0;
diff --git a/src/unix/linux_like/linux/gnu/mod.rs b/src/unix/linux_like/linux/gnu/mod.rs
index 6c1d1e59..0814abf5 100644
--- a/src/unix/linux_like/linux/gnu/mod.rs
+++ b/src/unix/linux_like/linux/gnu/mod.rs
@@ -874,22 +874,6 @@ pub const M_PERTURB: ::c_int = -6;
 pub const M_ARENA_TEST: ::c_int = -7;
 pub const M_ARENA_MAX: ::c_int = -8;
 
-#[doc(hidden)]
-#[deprecated(
-    since = "0.2.55",
-    note = "If you are using this report to: \
-            https://github.com/rust-lang/libc/issues/665"
-)]
-pub const AF_MAX: ::c_int = 45;
-#[doc(hidden)]
-#[deprecated(
-    since = "0.2.55",
-    note = "If you are using this report to: \
-            https://github.com/rust-lang/libc/issues/665"
-)]
-#[allow(deprecated)]
-pub const PF_MAX: ::c_int = AF_MAX;
-
 pub const AT_STATX_SYNC_TYPE: ::c_int = 0x6000;
 pub const AT_STATX_SYNC_AS_STAT: ::c_int = 0x0000;
 pub const AT_STATX_FORCE_SYNC: ::c_int = 0x2000;
diff --git a/src/unix/linux_like/linux/musl/b32/arm.rs b/src/unix/linux_like/linux/musl/b32/arm.rs
index 7d6dcfde..3d6e0013 100644
--- a/src/unix/linux_like/linux/musl/b32/arm.rs
+++ b/src/unix/linux_like/linux/musl/b32/arm.rs
@@ -828,22 +828,6 @@ pub const SYS_pkey_mprotect: ::c_long = 394;
 pub const SYS_pkey_alloc: ::c_long = 395;
 pub const SYS_pkey_free: ::c_long = 396;
 
-#[doc(hidden)]
-#[deprecated(
-    since = "0.2.55",
-    note = "If you are using this report to: \
-            https://github.com/rust-lang/libc/issues/665"
-)]
-pub const AF_MAX: ::c_int = 45;
-#[doc(hidden)]
-#[allow(deprecated)]
-#[deprecated(
-    since = "0.2.55",
-    note = "If you are using this report to: \
-            https://github.com/rust-lang/libc/issues/665"
-)]
-pub const PF_MAX: ::c_int = AF_MAX;
-
 extern {
     pub fn getrandom(
         buf: *mut ::c_void,
diff --git a/src/unix/linux_like/linux/musl/b32/mips.rs b/src/unix/linux_like/linux/musl/b32/mips.rs
index 5ab1d733..8da21cac 100644
--- a/src/unix/linux_like/linux/musl/b32/mips.rs
+++ b/src/unix/linux_like/linux/musl/b32/mips.rs
@@ -836,19 +836,3 @@ pub const SYS_mlock2: ::c_long = 4000 + 359;
 pub const SYS_copy_file_range: ::c_long = 4000 + 360;
 pub const SYS_preadv2: ::c_long = 4000 + 361;
 pub const SYS_pwritev2: ::c_long = 4000 + 362;
-
-#[doc(hidden)]
-#[deprecated(
-    since = "0.2.55",
-    note = "If you are using this report to: \
-            https://github.com/rust-lang/libc/issues/665"
-)]
-pub const AF_MAX: ::c_int = 42;
-#[doc(hidden)]
-#[deprecated(
-    since = "0.2.55",
-    note = "If you are using this report to: \
-            https://github.com/rust-lang/libc/issues/665"
-)]
-#[allow(deprecated)]
-pub const PF_MAX: ::c_int = AF_MAX;
diff --git a/src/unix/linux_like/linux/musl/b32/powerpc.rs b/src/unix/linux_like/linux/musl/b32/powerpc.rs
index 04999c62..76f23dd3 100644
--- a/src/unix/linux_like/linux/musl/b32/powerpc.rs
+++ b/src/unix/linux_like/linux/musl/b32/powerpc.rs
@@ -854,22 +854,6 @@ pub const SYS_pkey_alloc: ::c_long = 384;
 pub const SYS_pkey_free: ::c_long = 385;
 pub const SYS_pkey_mprotect: ::c_long = 386;
 
-#[doc(hidden)]
-#[deprecated(
-    since = "0.2.55",
-    note = "If you are using this report to: \
-            https://github.com/rust-lang/libc/issues/665"
-)]
-pub const AF_MAX: ::c_int = 43;
-#[doc(hidden)]
-#[allow(deprecated)]
-#[deprecated(
-    since = "0.2.55",
-    note = "If you are using this report to: \
-            https://github.com/rust-lang/libc/issues/665"
-)]
-pub const PF_MAX: ::c_int = AF_MAX;
-
 extern {
     pub fn getrandom(
         buf: *mut ::c_void,
diff --git a/src/unix/linux_like/linux/musl/b32/x86.rs b/src/unix/linux_like/linux/musl/b32/x86.rs
index 3ccf8070..91c5945a 100644
--- a/src/unix/linux_like/linux/musl/b32/x86.rs
+++ b/src/unix/linux_like/linux/musl/b32/x86.rs
@@ -936,22 +936,6 @@ pub const EFL: ::c_int = 14;
 pub const UESP: ::c_int = 15;
 pub const SS: ::c_int = 16;
 
-#[doc(hidden)]
-#[deprecated(
-    since = "0.2.55",
-    note = "If you are using this report to: \
-            https://github.com/rust-lang/libc/issues/665"
-)]
-pub const AF_MAX: ::c_int = 45;
-#[doc(hidden)]
-#[allow(deprecated)]
-#[deprecated(
-    since = "0.2.55",
-    note = "If you are using this report to: \
-            https://github.com/rust-lang/libc/issues/665"
-)]
-pub const PF_MAX: ::c_int = AF_MAX;
-
 extern {
     pub fn getrandom(
         buf: *mut ::c_void,
diff --git a/src/unix/linux_like/linux/musl/b64/aarch64.rs b/src/unix/linux_like/linux/musl/b64/aarch64.rs
index a72d071b..9b2a7c3e 100644
--- a/src/unix/linux_like/linux/musl/b64/aarch64.rs
+++ b/src/unix/linux_like/linux/musl/b64/aarch64.rs
@@ -70,22 +70,6 @@ pub const O_NOFOLLOW: ::c_int = 0x8000;
 pub const MINSIGSTKSZ: ::size_t = 6144;
 pub const SIGSTKSZ: ::size_t = 12288;
 
-#[doc(hidden)]
-#[deprecated(
-    since = "0.2.55",
-    note = "If you are using this report to: \
-            https://github.com/rust-lang/libc/issues/665"
-)]
-pub const PF_MAX: ::c_int = 45;
-#[doc(hidden)]
-#[deprecated(
-    since = "0.2.55",
-    note = "If you are using this report to: \
-            https://github.com/rust-lang/libc/issues/665"
-)]
-#[allow(deprecated)]
-pub const AF_MAX: ::c_int = PF_MAX;
-
 pub const MADV_SOFT_OFFLINE: ::c_int = 101;
 pub const SYS_io_setup: ::c_long = 0;
 pub const SYS_io_destroy: ::c_long = 1;
diff --git a/src/unix/linux_like/linux/musl/b64/powerpc64.rs b/src/unix/linux_like/linux/musl/b64/powerpc64.rs
index c8698287..04ceb79a 100644
--- a/src/unix/linux_like/linux/musl/b64/powerpc64.rs
+++ b/src/unix/linux_like/linux/musl/b64/powerpc64.rs
@@ -70,22 +70,6 @@ pub const O_NOFOLLOW: ::c_int = 0x8000;
 pub const SIGSTKSZ: ::size_t = 10240;
 pub const MINSIGSTKSZ: ::size_t = 4096;
 
-#[doc(hidden)]
-#[deprecated(
-    since = "0.2.55",
-    note = "If you are using this report to: \
-            https://github.com/rust-lang/libc/issues/665"
-)]
-pub const AF_MAX: ::c_int = 45;
-#[doc(hidden)]
-#[deprecated(
-    since = "0.2.55",
-    note = "If you are using this report to: \
-            https://github.com/rust-lang/libc/issues/665"
-)]
-#[allow(deprecated)]
-pub const PF_MAX: ::c_int = AF_MAX;
-
 // Syscall table
 pub const SYS_restart_syscall: ::c_long = 0;
 pub const SYS_exit: ::c_long = 1;
diff --git a/src/unix/linux_like/linux/musl/b64/x86_64.rs b/src/unix/linux_like/linux/musl/b64/x86_64.rs
index 1a123ff4..b4023f72 100644
--- a/src/unix/linux_like/linux/musl/b64/x86_64.rs
+++ b/src/unix/linux_like/linux/musl/b64/x86_64.rs
@@ -496,22 +496,6 @@ pub const TIOCSRS485: ::c_int = 0x542F;
 pub const SIGSTKSZ: ::size_t = 8192;
 pub const MINSIGSTKSZ: ::size_t = 2048;
 
-#[doc(hidden)]
-#[deprecated(
-    since = "0.2.55",
-    note = "If you are using this report to: \
-            https://github.com/rust-lang/libc/issues/665"
-)]
-pub const AF_MAX: ::c_int = 45;
-#[doc(hidden)]
-#[deprecated(
-    since = "0.2.55",
-    note = "If you are using this report to: \
-            https://github.com/rust-lang/libc/issues/665"
-)]
-#[allow(deprecated)]
-pub const PF_MAX: ::c_int = AF_MAX;
-
 pub const RLIMIT_NLIMITS: ::c_int = 15;
 pub const TIOCINQ: ::c_int = ::FIONREAD;
 pub const MCL_CURRENT: ::c_int = 0x0001;
diff --git a/src/unix/solarish/mod.rs b/src/unix/solarish/mod.rs
index b2c23a58..78956146 100644
--- a/src/unix/solarish/mod.rs
+++ b/src/unix/solarish/mod.rs
@@ -1246,13 +1246,6 @@ pub const AF_TRILL: ::c_int = 31;
 pub const AF_PACKET: ::c_int = 32;
 pub const AF_LX_NETLINK: ::c_int = 33;
 
-#[doc(hidden)]
-#[deprecated(
-    since = "0.2.55",
-    note = "If you are using this report to: \
-            https://github.com/rust-lang/libc/issues/665"
-)]
-pub const AF_MAX: ::c_int = 33;
 pub const SOCK_DGRAM: ::c_int = 1;
 pub const SOCK_STREAM: ::c_int = 2;
 pub const SOCK_RAW: ::c_int = 4;
diff --git a/src/unix/uclibc/mod.rs b/src/unix/uclibc/mod.rs
index 25e8f8bf..e1eda9b8 100644
--- a/src/unix/uclibc/mod.rs
+++ b/src/unix/uclibc/mod.rs
@@ -1475,13 +1475,6 @@ pub const NOSTR: ::nl_item = 0x503;
 
 pub const FILENAME_MAX: ::c_uint = 4095;
 
-#[deprecated(
-    since = "0.2.55",
-    note = "If you are using this report to: \
-            https://github.com/rust-lang/libc/issues/665"
-)]
-pub const AF_MAX: ::c_int = 39;
-
 f! {
     pub fn FD_CLR(fd: ::c_int, set: *mut fd_set) -> () {
         let fd = fd as usize;