diff --git a/src/header/_aio/cbindgen.toml b/src/header/_aio/cbindgen.toml
index f7e9c7085cdd97995d9e364e44bb448e3add2beb..fd387cb50ee8e8debe8e849de68c0cfdcc80a702 100644
--- a/src/header/_aio/cbindgen.toml
+++ b/src/header/_aio/cbindgen.toml
@@ -1,5 +1,5 @@
 sys_includes = []
-include_guard = "_AIO_H"
+include_guard = "_RELIBC_AIO_H"
 language = "C"
 style = "Tag"
 no_includes = true
diff --git a/src/header/_fenv/cbindgen.toml b/src/header/_fenv/cbindgen.toml
index dc3df6a78ae40b2f1428ade70628f7746c6ad0a3..e8ca9b12ad8280146d4dbbfb06194e680d174ab6 100644
--- a/src/header/_fenv/cbindgen.toml
+++ b/src/header/_fenv/cbindgen.toml
@@ -1,5 +1,5 @@
 sys_includes = ["stdint.h", "sys/types.h"]
-include_guard = "_FENV_H"
+include_guard = "_RELIBC_FENV_H"
 language = "C"
 style = "Tag"
 no_includes = true
diff --git a/src/header/_template/cbindgen.toml b/src/header/_template/cbindgen.toml
index 6eb7533937a3c31b998c702ecaae536ecb5af713..fbdebd78fd25c4c3209a0bc9c27e9b66eb184ef8 100644
--- a/src/header/_template/cbindgen.toml
+++ b/src/header/_template/cbindgen.toml
@@ -1,5 +1,5 @@
 sys_includes = []
-include_guard = "_TEMPLATE_H"
+include_guard = "_RELIBC_TEMPLATE_H"
 language = "C"
 style = "Tag"
 no_includes = true
diff --git a/src/header/_wctype/cbindgen.toml b/src/header/_wctype/cbindgen.toml
index 57aab6a4022e5e941c7ed7ed78c61605edf227e0..9477e2aa38b0068adf5b41973b70ed882efc2c3b 100644
--- a/src/header/_wctype/cbindgen.toml
+++ b/src/header/_wctype/cbindgen.toml
@@ -1,5 +1,5 @@
 sys_includes = []
-include_guard = "_WCTYPE_H"
+include_guard = "_RELIBC_WCTYPE_H"
 language = "C"
 style = "Tag"
 no_includes = true
diff --git a/src/header/assert/cbindgen.toml b/src/header/assert/cbindgen.toml
index eec2bfb141a5338b6ff79b4bc651d1354044d808..7d1598f4148034bb623c01e7cebba3c9704316df 100644
--- a/src/header/assert/cbindgen.toml
+++ b/src/header/assert/cbindgen.toml
@@ -1,5 +1,5 @@
 sys_includes = ["bits/assert.h"]
-include_guard = "_ASSERT_H"
+include_guard = "_RELIBC_ASSERT_H"
 language = "C"
 style = "Tag"
 no_includes = true
diff --git a/src/header/ctype/cbindgen.toml b/src/header/ctype/cbindgen.toml
index ff4f1d59d1f53897e99c8b40aca6cb77566e2bc6..f47026b46c988d727cb4272a298846d692c6754e 100644
--- a/src/header/ctype/cbindgen.toml
+++ b/src/header/ctype/cbindgen.toml
@@ -1,5 +1,5 @@
 sys_includes = ["bits/ctype.h"]
-include_guard = "_CTYPE_H"
+include_guard = "_RELIBC_CTYPE_H"
 language = "C"
 style = "Tag"
 no_includes = true
diff --git a/src/header/dirent/cbindgen.toml b/src/header/dirent/cbindgen.toml
index 252f91ffe90abf8d0ed920c2f0974b97e0319ce3..5ba9d76a14dec0948320e0c7406feb51c9fce1bb 100644
--- a/src/header/dirent/cbindgen.toml
+++ b/src/header/dirent/cbindgen.toml
@@ -1,5 +1,5 @@
 sys_includes = ["sys/types.h"]
-include_guard = "_DIRENT_H"
+include_guard = "_RELIBC_DIRENT_H"
 language = "C"
 style = "Both"
 trailer = "#include <bits/dirent.h>"
diff --git a/src/header/dlfcn/cbindgen.toml b/src/header/dlfcn/cbindgen.toml
index 7e00f6ecdcfb49b0663fe3e862c2b0db4aa94113..3a324bd8cb6291355c45b885dd9d4ea536afa762 100644
--- a/src/header/dlfcn/cbindgen.toml
+++ b/src/header/dlfcn/cbindgen.toml
@@ -1,5 +1,5 @@
 sys_includes = []
-include_guard = "_DLFCN_H"
+include_guard = "_RELIBC_DLFCN_H"
 language = "C"
 style = "Type"
 no_includes = true
diff --git a/src/header/errno/cbindgen.toml b/src/header/errno/cbindgen.toml
index 97769954d3fed93a8fd6ae6912db3369aa563803..7de26bfdf8dc70a70f581c7999e7b8776e36ef3c 100644
--- a/src/header/errno/cbindgen.toml
+++ b/src/header/errno/cbindgen.toml
@@ -1,5 +1,5 @@
 sys_includes = ["bits/errno.h"]
-include_guard = "_ERRNO_H"
+include_guard = "_RELIBC_ERRNO_H"
 language = "C"
 style = "Tag"
 no_includes = true
diff --git a/src/header/fcntl/cbindgen.toml b/src/header/fcntl/cbindgen.toml
index 28019aeebba57a37ac88fdc3c7a98c99419a7b36..40377c713a4e5531f686532dcdc25ccb3b2af123 100644
--- a/src/header/fcntl/cbindgen.toml
+++ b/src/header/fcntl/cbindgen.toml
@@ -1,5 +1,5 @@
 sys_includes = ["stdarg.h", "sys/types.h"]
-include_guard = "_FCNTL_H"
+include_guard = "_RELIBC_FCNTL_H"
 trailer = "#include <bits/fcntl.h>"
 language = "C"
 style = "Tag"
diff --git a/src/header/float/cbindgen.toml b/src/header/float/cbindgen.toml
index 976cd7b879dfdc147ed837dfbe2e2384059a8a5c..4ca9cc2ea76bf088bc133701e2f1c97d5626ba6f 100644
--- a/src/header/float/cbindgen.toml
+++ b/src/header/float/cbindgen.toml
@@ -1,5 +1,5 @@
 sys_includes = ["sys/types.h", "bits/float.h"]
-include_guard = "_FLOAT_H"
+include_guard = "_RELIBC_FLOAT_H"
 language = "C"
 style = "Tag"
 no_includes = true
diff --git a/src/header/fnmatch/cbindgen.toml b/src/header/fnmatch/cbindgen.toml
index 1acf898cf00992cecdd760f6e3ef527fd5480b78..c5cb5bababa3f83d05c19fd68f602fbdd683ad8d 100644
--- a/src/header/fnmatch/cbindgen.toml
+++ b/src/header/fnmatch/cbindgen.toml
@@ -1,4 +1,4 @@
-include_guard = "_FNMATCH_H"
+include_guard = "_RELIBC_FNMATCH_H"
 language = "C"
 style = "Tag"
 no_includes = true
diff --git a/src/header/getopt/cbindgen.toml b/src/header/getopt/cbindgen.toml
index 3d74bd500efe99c764affece6459c634b23dcd97..36e260094b61d3bc513c28198372adc2d1928ef4 100644
--- a/src/header/getopt/cbindgen.toml
+++ b/src/header/getopt/cbindgen.toml
@@ -1,5 +1,5 @@
 sys_includes = ["unistd.h"]
-include_guard = "_GETOPT_H"
+include_guard = "_RELIBC_GETOPT_H"
 language = "C"
 style = "Tag"
 no_includes = true
diff --git a/src/header/grp/cbindgen.toml b/src/header/grp/cbindgen.toml
index 8db7bd7da27b3c45efc23e08c71054ea91aac385..4a2e9f2cf0eeb97983dc6ce77ee95cbac963b133 100644
--- a/src/header/grp/cbindgen.toml
+++ b/src/header/grp/cbindgen.toml
@@ -1,5 +1,5 @@
 sys_includes = []
-include_guard = "_GRP_H"
+include_guard = "_RELIBC_GRP_H"
 language = "C"
 style = "Tag"
 no_includes = true
diff --git a/src/header/inttypes/cbindgen.toml b/src/header/inttypes/cbindgen.toml
index 81e458051ff52abfdadcae203d0afa884ceba8a6..f923cb680457be6320e85528f35f52a12c575c63 100644
--- a/src/header/inttypes/cbindgen.toml
+++ b/src/header/inttypes/cbindgen.toml
@@ -1,5 +1,5 @@
 sys_includes = ["stdint.h", "wchar.h"]
-include_guard = "_INTTYPES_H"
+include_guard = "_RELIBC_INTTYPES_H"
 trailer = "#include <bits/inttypes.h>"
 language = "C"
 style = "Type"
diff --git a/src/header/libgen/cbindgen.toml b/src/header/libgen/cbindgen.toml
index b407f8cc16c9265670250ba5cf4511cb314787b1..50d050350e089bc42839692f43073f7d382f10be 100644
--- a/src/header/libgen/cbindgen.toml
+++ b/src/header/libgen/cbindgen.toml
@@ -1,5 +1,5 @@
 sys_includes = []
-include_guard = "_LIBGEN_H"
+include_guard = "_RELIBC_LIBGEN_H"
 language = "C"
 style = "Tag"
 no_includes = true
diff --git a/src/header/limits/cbindgen.toml b/src/header/limits/cbindgen.toml
index a35e1404ebb03a8b408f5cdf8b9b8da3c96563e9..df8b0b0469bf1ce5d0ec468ad4a6c89dc3ad17b3 100644
--- a/src/header/limits/cbindgen.toml
+++ b/src/header/limits/cbindgen.toml
@@ -1,5 +1,5 @@
 sys_includes = []
-include_guard = "_LIMITS_H"
+include_guard = "_RELIBC_LIMITS_H"
 trailer = "#include <bits/limits.h>"
 language = "C"
 style = "Tag"
diff --git a/src/header/locale/cbindgen.toml b/src/header/locale/cbindgen.toml
index 2a7072bb215fc06fc7149da9cdf6034b0dab549a..edb2300b9c83e5b2f4d14d02e6608a25fce31c9e 100644
--- a/src/header/locale/cbindgen.toml
+++ b/src/header/locale/cbindgen.toml
@@ -1,4 +1,4 @@
-include_guard = "_LOCALE_H"
+include_guard = "_RELIBC_LOCALE_H"
 trailer = "#include <bits/locale.h>"
 language = "C"
 style = "Tag"
diff --git a/src/header/netdb/cbindgen.toml b/src/header/netdb/cbindgen.toml
index fdbf6fa8943645261495ee8a88ac5183832b46f3..b4332479d230a2443b08b8fd8154efd2a1817019 100644
--- a/src/header/netdb/cbindgen.toml
+++ b/src/header/netdb/cbindgen.toml
@@ -1,5 +1,5 @@
 sys_includes = ["sys/socket.h", "netinet/in.h"]
-include_guard = "_NETDB_H"
+include_guard = "_RELIBC_NETDB_H"
 trailer = "#include <bits/netdb.h>"
 language = "C"
 style = "Tag"
diff --git a/src/header/poll/cbindgen.toml b/src/header/poll/cbindgen.toml
index db04f56ceed31e356b87d32941b61800cfbb6e10..ac981e6ad10058e93a7b1d4800676f1668504b3c 100644
--- a/src/header/poll/cbindgen.toml
+++ b/src/header/poll/cbindgen.toml
@@ -1,5 +1,5 @@
 sys_includes = []
-include_guard = "_POLL_H"
+include_guard = "_RELIBC_POLL_H"
 language = "C"
 style = "Tag"
 no_includes = true
diff --git a/src/header/pwd/cbindgen.toml b/src/header/pwd/cbindgen.toml
index bce631e414cb55b4e55505b5f0f01d16a7853c5b..55d0cdf99c9c114ff9d25ce72a454740713d727b 100644
--- a/src/header/pwd/cbindgen.toml
+++ b/src/header/pwd/cbindgen.toml
@@ -1,5 +1,5 @@
 sys_includes = ["stddef.h", "sys/types.h"]
-include_guard = "_PWD_H"
+include_guard = "_RELIBC_PWD_H"
 language = "C"
 style = "Tag"
 no_includes = true
diff --git a/src/header/regex/cbindgen.toml b/src/header/regex/cbindgen.toml
index 550385cdb28b52c5ac9a21009a4d91505a87b8b8..78dfc8ee0d96ba9bab9a1ad4cc2d029e46f6f17f 100644
--- a/src/header/regex/cbindgen.toml
+++ b/src/header/regex/cbindgen.toml
@@ -1,5 +1,5 @@
 sys_includes = ["sys/types.h"]
-include_guard = "_REGEX_H"
+include_guard = "_RELIBC_REGEX_H"
 language = "C"
 style = "Type"
 no_includes = true
diff --git a/src/header/semaphore/cbindgen.toml b/src/header/semaphore/cbindgen.toml
index 8514bfba0726d429a597c1cbc11e7eec75980197..0c011949899e0d3e07c9abbb076d4673bbdd68c7 100644
--- a/src/header/semaphore/cbindgen.toml
+++ b/src/header/semaphore/cbindgen.toml
@@ -1,5 +1,5 @@
 sys_includes = []
-include_guard = "_SEMAPHORE_H"
+include_guard = "_RELIBC_SEMAPHORE_H"
 language = "C"
 style = "Tag"
 no_includes = true
diff --git a/src/header/sgtty/cbindgen.toml b/src/header/sgtty/cbindgen.toml
index f6f653d6f5bf26356c9cd2048289719a2ab55633..f566f920ee916d5db6d31b06c1a9194981cc7263 100644
--- a/src/header/sgtty/cbindgen.toml
+++ b/src/header/sgtty/cbindgen.toml
@@ -1,5 +1,5 @@
 sys_includes = ["sys/ioctl.h"]
-include_guard = "_SGTTY_H"
+include_guard = "_RELIBC_SGTTY_H"
 language = "C"
 style = "Tag"
 no_includes = true
diff --git a/src/header/signal/cbindgen.toml b/src/header/signal/cbindgen.toml
index 73a7c9e41775be6be27e601f7a3906c25e6c5c84..46bbe113522ce57174074b555d76ac7aa337c271 100644
--- a/src/header/signal/cbindgen.toml
+++ b/src/header/signal/cbindgen.toml
@@ -1,5 +1,5 @@
 sys_includes = ["stdint.h", "sys/types.h"]
-include_guard = "_SIGNAL_H"
+include_guard = "_RELIBC_SIGNAL_H"
 trailer = "#include <bits/signal.h>"
 language = "C"
 style = "Tag"
diff --git a/src/header/stdio/cbindgen.toml b/src/header/stdio/cbindgen.toml
index 1be8edc8556fd53954ef94f9531d4e57e5ad5f9b..633b449850b891a4853a48f0b8d48d0b1d0e26e1 100644
--- a/src/header/stdio/cbindgen.toml
+++ b/src/header/stdio/cbindgen.toml
@@ -1,5 +1,5 @@
 sys_includes = ["stdarg.h", "stddef.h", "stdint.h", "sys/types.h"]
-include_guard = "_STDIO_H"
+include_guard = "_RELIBC_STDIO_H"
 trailer = "#include <bits/stdio.h>"
 language = "C"
 style = "Type"
diff --git a/src/header/stdlib/cbindgen.toml b/src/header/stdlib/cbindgen.toml
index 1f21fbb5ce51885c34f2d7455c94a47a2394a982..7e9b9a86982f82a37a646b93177e25ab68948667 100644
--- a/src/header/stdlib/cbindgen.toml
+++ b/src/header/stdlib/cbindgen.toml
@@ -1,5 +1,5 @@
 sys_includes = ["stddef.h", "alloca.h"]
-include_guard = "_STDLIB_H"
+include_guard = "_RELIBC_STDLIB_H"
 trailer = "#include <bits/stdlib.h>"
 language = "C"
 style = "Type"
diff --git a/src/header/string/cbindgen.toml b/src/header/string/cbindgen.toml
index bea34fa1bb6d916ea9f5e5861f310583bdf73f00..9cee2c5da55adcaae9b3bcad64c3d673743356fa 100644
--- a/src/header/string/cbindgen.toml
+++ b/src/header/string/cbindgen.toml
@@ -1,5 +1,5 @@
 sys_includes = ["stddef.h", "stdint.h", "strings.h"]
-include_guard = "_STRING_H"
+include_guard = "_RELIBC_STRING_H"
 language = "C"
 style = "Tag"
 no_includes = true
diff --git a/src/header/strings/cbindgen.toml b/src/header/strings/cbindgen.toml
index 20fc84e0ae38134bf774040832c31d262dc8bae7..2897bd542357cbb470d1815f2b0de507ee7e509c 100644
--- a/src/header/strings/cbindgen.toml
+++ b/src/header/strings/cbindgen.toml
@@ -1,5 +1,5 @@
 sys_includes = ["stddef.h", "stdint.h"]
-include_guard = "_STRINGS_H"
+include_guard = "_RELIBC_STRINGS_H"
 language = "C"
 style = "Tag"
 no_includes = true
diff --git a/src/header/termios/cbindgen.toml b/src/header/termios/cbindgen.toml
index eafb3c12af334829c3f5d35c043a29f8e6991fda..03a82a153afb3aeff2cde439b129633c81644a82 100644
--- a/src/header/termios/cbindgen.toml
+++ b/src/header/termios/cbindgen.toml
@@ -1,5 +1,5 @@
 sys_includes = ["stdint.h"]
-include_guard = "_TERMIOS_H"
+include_guard = "_RELIBC_TERMIOS_H"
 language = "C"
 style = "Tag"
 no_includes = true
diff --git a/src/header/time/cbindgen.toml b/src/header/time/cbindgen.toml
index 61af8ce831f9601e4e8c734baf70a4927fc49355..0b7e7399bdfd449d02db474fb179399dc3049191 100644
--- a/src/header/time/cbindgen.toml
+++ b/src/header/time/cbindgen.toml
@@ -1,5 +1,5 @@
 sys_includes = ["sys/types.h", "stdint.h", "stddef.h"]
-include_guard = "_TIME_H"
+include_guard = "_RELIBC_TIME_H"
 language = "C"
 style = "Tag"
 no_includes = true
diff --git a/src/header/unistd/cbindgen.toml b/src/header/unistd/cbindgen.toml
index f8450e0c691a87580079e835471aba716989b068..610d6d21fe8cff4171206a002375d29da2b055bb 100644
--- a/src/header/unistd/cbindgen.toml
+++ b/src/header/unistd/cbindgen.toml
@@ -1,5 +1,5 @@
 sys_includes = ["stddef.h", "stdint.h", "sys/types.h"]
-include_guard = "_UNISTD_H"
+include_guard = "_RELIBC_UNISTD_H"
 trailer = "#include <bits/fcntl.h>\n#include <bits/unistd.h>"
 language = "C"
 style = "Tag"
diff --git a/src/header/utime/cbindgen.toml b/src/header/utime/cbindgen.toml
index a415b33c4b2d9204e161288ed326558c5f124964..e4e125542a80d832ed1d11144e165f76fd38be16 100644
--- a/src/header/utime/cbindgen.toml
+++ b/src/header/utime/cbindgen.toml
@@ -1,5 +1,5 @@
 sys_includes = []
-include_guard = "_UTIME_H"
+include_guard = "_RELIBC_UTIME_H"
 language = "C"
 style = "Tag"
 no_includes = true
diff --git a/src/header/wchar/cbindgen.toml b/src/header/wchar/cbindgen.toml
index 853cfd27e35cd864f3329bdb9167fa49f38ce390..1a2836a9e7e32dcc13b4a69c9309b3b5e461b8a5 100644
--- a/src/header/wchar/cbindgen.toml
+++ b/src/header/wchar/cbindgen.toml
@@ -1,5 +1,5 @@
 sys_includes = ["stddef.h", "stdint.h", "time.h", "stdio.h" ]
-include_guard = "_WCHAR_H"
+include_guard = "_RELIBC_WCHAR_H"
 header = "#include <bits/wchar.h>"
 language = "C"
 style = "Type"
diff --git a/src/header/wctype/cbindgen.toml b/src/header/wctype/cbindgen.toml
index 872e70e92536398dc1c80ab36d1f40f4683f692d..032cfcb0ab7866b2b8409ee34c800ebfd935bda7 100644
--- a/src/header/wctype/cbindgen.toml
+++ b/src/header/wctype/cbindgen.toml
@@ -1,5 +1,5 @@
 sys_includes = ["stddef.h", "stdint.h", "time.h", "stdio.h" ]
-include_guard = "_WCTYPE_H"
+include_guard = "_RELIBC_WCTYPE_H"
 header = "#include <bits/wctype.h>"
 language = "C"
 style = "Type"