diff --git a/unix/linux/Dockerfile b/unix/linux/Dockerfile
index 77c6ff2..4e8f667 100644
--- a/unix/linux/Dockerfile
+++ b/unix/linux/Dockerfile
@@ -13,8 +13,8 @@
 RUN git config --global advice.detachedHead false
 # Linux Kernel: Released 07 July 2019
 RUN git clone --branch v5.2 --depth 1 https://kernel.googlesource.com/pub/scm/linux/kernel/git/torvalds/linux
-# GNU C library: Released 01 Feb 2019 (we should try to get a secure way to clone this)
-RUN git clone --branch release/2.29/master --depth 1 git://sourceware.org/git/glibc.git
+# GNU C library: Released 02 Aug 2019 (we should try to get a secure way to clone this)
+RUN git clone --branch release/2.30/master --depth 1 git://sourceware.org/git/glibc.git
 
 # Get Go
 ENV GOLANG_VERSION 1.13beta1
diff --git a/unix/zerrors_linux_386.go b/unix/zerrors_linux_386.go
index 5213d82..3fb475b 100644
--- a/unix/zerrors_linux_386.go
+++ b/unix/zerrors_linux_386.go
@@ -722,6 +722,7 @@
 	F_OFD_SETLKW                         = 0x26
 	F_OK                                 = 0x0
 	F_RDLCK                              = 0x0
+	F_SEAL_FUTURE_WRITE                  = 0x10
 	F_SEAL_GROW                          = 0x4
 	F_SEAL_SEAL                          = 0x1
 	F_SEAL_SHRINK                        = 0x2
@@ -987,6 +988,7 @@
 	IPV6_RECVRTHDR                       = 0x38
 	IPV6_RECVTCLASS                      = 0x42
 	IPV6_ROUTER_ALERT                    = 0x16
+	IPV6_ROUTER_ALERT_ISOLATE            = 0x1e
 	IPV6_RTHDR                           = 0x39
 	IPV6_RTHDRDSTOPTS                    = 0x37
 	IPV6_RTHDR_LOOSE                     = 0x0
diff --git a/unix/zerrors_linux_amd64.go b/unix/zerrors_linux_amd64.go
index 39b630c..9c4e19f 100644
--- a/unix/zerrors_linux_amd64.go
+++ b/unix/zerrors_linux_amd64.go
@@ -722,6 +722,7 @@
 	F_OFD_SETLKW                         = 0x26
 	F_OK                                 = 0x0
 	F_RDLCK                              = 0x0
+	F_SEAL_FUTURE_WRITE                  = 0x10
 	F_SEAL_GROW                          = 0x4
 	F_SEAL_SEAL                          = 0x1
 	F_SEAL_SHRINK                        = 0x2
@@ -987,6 +988,7 @@
 	IPV6_RECVRTHDR                       = 0x38
 	IPV6_RECVTCLASS                      = 0x42
 	IPV6_ROUTER_ALERT                    = 0x16
+	IPV6_ROUTER_ALERT_ISOLATE            = 0x1e
 	IPV6_RTHDR                           = 0x39
 	IPV6_RTHDRDSTOPTS                    = 0x37
 	IPV6_RTHDR_LOOSE                     = 0x0
diff --git a/unix/zerrors_linux_arm.go b/unix/zerrors_linux_arm.go
index c59a1be..a1f038c 100644
--- a/unix/zerrors_linux_arm.go
+++ b/unix/zerrors_linux_arm.go
@@ -721,6 +721,7 @@
 	F_OFD_SETLKW                         = 0x26
 	F_OK                                 = 0x0
 	F_RDLCK                              = 0x0
+	F_SEAL_FUTURE_WRITE                  = 0x10
 	F_SEAL_GROW                          = 0x4
 	F_SEAL_SEAL                          = 0x1
 	F_SEAL_SHRINK                        = 0x2
@@ -986,6 +987,7 @@
 	IPV6_RECVRTHDR                       = 0x38
 	IPV6_RECVTCLASS                      = 0x42
 	IPV6_ROUTER_ALERT                    = 0x16
+	IPV6_ROUTER_ALERT_ISOLATE            = 0x1e
 	IPV6_RTHDR                           = 0x39
 	IPV6_RTHDRDSTOPTS                    = 0x37
 	IPV6_RTHDR_LOOSE                     = 0x0
diff --git a/unix/zerrors_linux_arm64.go b/unix/zerrors_linux_arm64.go
index 5f35c19..504ce13 100644
--- a/unix/zerrors_linux_arm64.go
+++ b/unix/zerrors_linux_arm64.go
@@ -724,6 +724,7 @@
 	F_OFD_SETLKW                         = 0x26
 	F_OK                                 = 0x0
 	F_RDLCK                              = 0x0
+	F_SEAL_FUTURE_WRITE                  = 0x10
 	F_SEAL_GROW                          = 0x4
 	F_SEAL_SEAL                          = 0x1
 	F_SEAL_SHRINK                        = 0x2
@@ -989,6 +990,7 @@
 	IPV6_RECVRTHDR                       = 0x38
 	IPV6_RECVTCLASS                      = 0x42
 	IPV6_ROUTER_ALERT                    = 0x16
+	IPV6_ROUTER_ALERT_ISOLATE            = 0x1e
 	IPV6_RTHDR                           = 0x39
 	IPV6_RTHDRDSTOPTS                    = 0x37
 	IPV6_RTHDR_LOOSE                     = 0x0
diff --git a/unix/zerrors_linux_mips.go b/unix/zerrors_linux_mips.go
index 7f1b7be..58b6429 100644
--- a/unix/zerrors_linux_mips.go
+++ b/unix/zerrors_linux_mips.go
@@ -721,6 +721,7 @@
 	F_OFD_SETLKW                         = 0x26
 	F_OK                                 = 0x0
 	F_RDLCK                              = 0x0
+	F_SEAL_FUTURE_WRITE                  = 0x10
 	F_SEAL_GROW                          = 0x4
 	F_SEAL_SEAL                          = 0x1
 	F_SEAL_SHRINK                        = 0x2
@@ -986,6 +987,7 @@
 	IPV6_RECVRTHDR                       = 0x38
 	IPV6_RECVTCLASS                      = 0x42
 	IPV6_ROUTER_ALERT                    = 0x16
+	IPV6_ROUTER_ALERT_ISOLATE            = 0x1e
 	IPV6_RTHDR                           = 0x39
 	IPV6_RTHDRDSTOPTS                    = 0x37
 	IPV6_RTHDR_LOOSE                     = 0x0
diff --git a/unix/zerrors_linux_mips64.go b/unix/zerrors_linux_mips64.go
index 603d88b..35e33de 100644
--- a/unix/zerrors_linux_mips64.go
+++ b/unix/zerrors_linux_mips64.go
@@ -721,6 +721,7 @@
 	F_OFD_SETLKW                         = 0x26
 	F_OK                                 = 0x0
 	F_RDLCK                              = 0x0
+	F_SEAL_FUTURE_WRITE                  = 0x10
 	F_SEAL_GROW                          = 0x4
 	F_SEAL_SEAL                          = 0x1
 	F_SEAL_SHRINK                        = 0x2
@@ -986,6 +987,7 @@
 	IPV6_RECVRTHDR                       = 0x38
 	IPV6_RECVTCLASS                      = 0x42
 	IPV6_ROUTER_ALERT                    = 0x16
+	IPV6_ROUTER_ALERT_ISOLATE            = 0x1e
 	IPV6_RTHDR                           = 0x39
 	IPV6_RTHDRDSTOPTS                    = 0x37
 	IPV6_RTHDR_LOOSE                     = 0x0
diff --git a/unix/zerrors_linux_mips64le.go b/unix/zerrors_linux_mips64le.go
index ed178f8..574fcd8 100644
--- a/unix/zerrors_linux_mips64le.go
+++ b/unix/zerrors_linux_mips64le.go
@@ -721,6 +721,7 @@
 	F_OFD_SETLKW                         = 0x26
 	F_OK                                 = 0x0
 	F_RDLCK                              = 0x0
+	F_SEAL_FUTURE_WRITE                  = 0x10
 	F_SEAL_GROW                          = 0x4
 	F_SEAL_SEAL                          = 0x1
 	F_SEAL_SHRINK                        = 0x2
@@ -986,6 +987,7 @@
 	IPV6_RECVRTHDR                       = 0x38
 	IPV6_RECVTCLASS                      = 0x42
 	IPV6_ROUTER_ALERT                    = 0x16
+	IPV6_ROUTER_ALERT_ISOLATE            = 0x1e
 	IPV6_RTHDR                           = 0x39
 	IPV6_RTHDRDSTOPTS                    = 0x37
 	IPV6_RTHDR_LOOSE                     = 0x0
diff --git a/unix/zerrors_linux_mipsle.go b/unix/zerrors_linux_mipsle.go
index 080b789..cdf0cf5 100644
--- a/unix/zerrors_linux_mipsle.go
+++ b/unix/zerrors_linux_mipsle.go
@@ -721,6 +721,7 @@
 	F_OFD_SETLKW                         = 0x26
 	F_OK                                 = 0x0
 	F_RDLCK                              = 0x0
+	F_SEAL_FUTURE_WRITE                  = 0x10
 	F_SEAL_GROW                          = 0x4
 	F_SEAL_SEAL                          = 0x1
 	F_SEAL_SHRINK                        = 0x2
@@ -986,6 +987,7 @@
 	IPV6_RECVRTHDR                       = 0x38
 	IPV6_RECVTCLASS                      = 0x42
 	IPV6_ROUTER_ALERT                    = 0x16
+	IPV6_ROUTER_ALERT_ISOLATE            = 0x1e
 	IPV6_RTHDR                           = 0x39
 	IPV6_RTHDRDSTOPTS                    = 0x37
 	IPV6_RTHDR_LOOSE                     = 0x0
diff --git a/unix/zerrors_linux_ppc64.go b/unix/zerrors_linux_ppc64.go
index 961e8ea..eefdb32 100644
--- a/unix/zerrors_linux_ppc64.go
+++ b/unix/zerrors_linux_ppc64.go
@@ -721,6 +721,7 @@
 	F_OFD_SETLKW                         = 0x26
 	F_OK                                 = 0x0
 	F_RDLCK                              = 0x0
+	F_SEAL_FUTURE_WRITE                  = 0x10
 	F_SEAL_GROW                          = 0x4
 	F_SEAL_SEAL                          = 0x1
 	F_SEAL_SHRINK                        = 0x2
@@ -986,6 +987,7 @@
 	IPV6_RECVRTHDR                       = 0x38
 	IPV6_RECVTCLASS                      = 0x42
 	IPV6_ROUTER_ALERT                    = 0x16
+	IPV6_ROUTER_ALERT_ISOLATE            = 0x1e
 	IPV6_RTHDR                           = 0x39
 	IPV6_RTHDRDSTOPTS                    = 0x37
 	IPV6_RTHDR_LOOSE                     = 0x0
diff --git a/unix/zerrors_linux_ppc64le.go b/unix/zerrors_linux_ppc64le.go
index 6e0538f..78db210 100644
--- a/unix/zerrors_linux_ppc64le.go
+++ b/unix/zerrors_linux_ppc64le.go
@@ -721,6 +721,7 @@
 	F_OFD_SETLKW                         = 0x26
 	F_OK                                 = 0x0
 	F_RDLCK                              = 0x0
+	F_SEAL_FUTURE_WRITE                  = 0x10
 	F_SEAL_GROW                          = 0x4
 	F_SEAL_SEAL                          = 0x1
 	F_SEAL_SHRINK                        = 0x2
@@ -986,6 +987,7 @@
 	IPV6_RECVRTHDR                       = 0x38
 	IPV6_RECVTCLASS                      = 0x42
 	IPV6_ROUTER_ALERT                    = 0x16
+	IPV6_ROUTER_ALERT_ISOLATE            = 0x1e
 	IPV6_RTHDR                           = 0x39
 	IPV6_RTHDRDSTOPTS                    = 0x37
 	IPV6_RTHDR_LOOSE                     = 0x0
diff --git a/unix/zerrors_linux_riscv64.go b/unix/zerrors_linux_riscv64.go
index 06c0148..0cd07f9 100644
--- a/unix/zerrors_linux_riscv64.go
+++ b/unix/zerrors_linux_riscv64.go
@@ -721,6 +721,7 @@
 	F_OFD_SETLKW                         = 0x26
 	F_OK                                 = 0x0
 	F_RDLCK                              = 0x0
+	F_SEAL_FUTURE_WRITE                  = 0x10
 	F_SEAL_GROW                          = 0x4
 	F_SEAL_SEAL                          = 0x1
 	F_SEAL_SHRINK                        = 0x2
@@ -986,6 +987,7 @@
 	IPV6_RECVRTHDR                       = 0x38
 	IPV6_RECVTCLASS                      = 0x42
 	IPV6_ROUTER_ALERT                    = 0x16
+	IPV6_ROUTER_ALERT_ISOLATE            = 0x1e
 	IPV6_RTHDR                           = 0x39
 	IPV6_RTHDRDSTOPTS                    = 0x37
 	IPV6_RTHDR_LOOSE                     = 0x0
diff --git a/unix/zerrors_linux_s390x.go b/unix/zerrors_linux_s390x.go
index 3987509..ac4f1d9 100644
--- a/unix/zerrors_linux_s390x.go
+++ b/unix/zerrors_linux_s390x.go
@@ -721,6 +721,7 @@
 	F_OFD_SETLKW                         = 0x26
 	F_OK                                 = 0x0
 	F_RDLCK                              = 0x0
+	F_SEAL_FUTURE_WRITE                  = 0x10
 	F_SEAL_GROW                          = 0x4
 	F_SEAL_SEAL                          = 0x1
 	F_SEAL_SHRINK                        = 0x2
@@ -986,6 +987,7 @@
 	IPV6_RECVRTHDR                       = 0x38
 	IPV6_RECVTCLASS                      = 0x42
 	IPV6_ROUTER_ALERT                    = 0x16
+	IPV6_ROUTER_ALERT_ISOLATE            = 0x1e
 	IPV6_RTHDR                           = 0x39
 	IPV6_RTHDRDSTOPTS                    = 0x37
 	IPV6_RTHDR_LOOSE                     = 0x0
diff --git a/unix/zerrors_linux_sparc64.go b/unix/zerrors_linux_sparc64.go
index 8d80f99..8a12f14 100644
--- a/unix/zerrors_linux_sparc64.go
+++ b/unix/zerrors_linux_sparc64.go
@@ -725,6 +725,7 @@
 	F_OFD_SETLKW                         = 0x26
 	F_OK                                 = 0x0
 	F_RDLCK                              = 0x1
+	F_SEAL_FUTURE_WRITE                  = 0x10
 	F_SEAL_GROW                          = 0x4
 	F_SEAL_SEAL                          = 0x1
 	F_SEAL_SHRINK                        = 0x2
@@ -990,6 +991,7 @@
 	IPV6_RECVRTHDR                       = 0x38
 	IPV6_RECVTCLASS                      = 0x42
 	IPV6_ROUTER_ALERT                    = 0x16
+	IPV6_ROUTER_ALERT_ISOLATE            = 0x1e
 	IPV6_RTHDR                           = 0x39
 	IPV6_RTHDRDSTOPTS                    = 0x37
 	IPV6_RTHDR_LOOSE                     = 0x0