diff --git a/abis/linux/x86_64/wait.h b/abis/linux/x86_64/wait.h
new file mode 100644
index 00000000..f8f0f586
--- /dev/null
+++ b/abis/linux/x86_64/wait.h
@@ -0,0 +1,22 @@
+#ifndef _ABIBITS_WAIT_H
+#define _ABIBITS_WAIT_H
+
+#define WNOHANG 1
+#define WUNTRACED 2
+#define WSTOPPED 2
+#define WEXITED 4
+#define WCONTINUED 8
+#define WNOWAIT 0x01000000
+
+#define WCOREFLAG 0x80
+
+#define WEXITSTATUS(x) (((x) & 0xff00) >> 8)
+#define WTERMSIG(x) ((x) & 0x7f)
+#define WSTOPSIG(x) WEXITSTATUS(x)
+#define WIFEXITED(x) (WTERMSIG(x) == 0)
+#define WIFSIGNALED(x) (((signed char) (((x) & 0x7f) + 1) >> 1) > 0)
+#define WIFSTOPPED(x) (((x) & 0xff) == 0x7f)
+#define WIFCONTINUED(x) ((x) == 0xffff)
+#define WCOREDUMP(x) ((x) & WCOREFLAG)
+
+#endif //_ABIBITS_WAIT_H
diff --git a/abis/mlibc/wait.h b/abis/mlibc/wait.h
new file mode 100644
index 00000000..eb616df6
--- /dev/null
+++ b/abis/mlibc/wait.h
@@ -0,0 +1,22 @@
+#ifndef _ABIBITS_WAIT_H
+#define _ABIBITS_WAIT_H
+
+#define WCONTINUED 1
+#define WNOHANG 2
+#define WUNTRACED 4
+#define WEXITED 8
+#define WNOWAIT 16
+#define WSTOPPED 32
+
+#define WCOREFLAG 0x80
+
+#define WEXITSTATUS(x) ((x) & 0x000000FF)
+#define WIFCONTINUED(x) ((x) & 0x00000100)
+#define WIFEXITED(x) ((x) & 0x00000200)
+#define WIFSIGNALED(x) ((x) & 0x00000400)
+#define WIFSTOPPED(x) ((x) & 0x00000800)
+#define WSTOPSIG(x) (((x) & 0x00FF0000) >> 16)
+#define WTERMSIG(x) (((x) & 0xFF000000) >> 24)
+#define WCOREDUMP(x) ((x) & WCOREFLAG)
+
+#endif //_ABIBITS_WAIT_H
diff --git a/options/posix/include/sys/wait.h b/options/posix/include/sys/wait.h
index 8656ca31..c291e8e7 100644
--- a/options/posix/include/sys/wait.h
+++ b/options/posix/include/sys/wait.h
@@ -6,6 +6,7 @@
 #include <abi-bits/pid_t.h>
 // for siginfo_t
 #include <abi-bits/signal.h>
+#include <abi-bits/wait.h>
 
 #ifdef __cplusplus
 extern "C" {
@@ -14,26 +15,6 @@ extern "C" {
 // According to POSIX, <sys/wait.h> does not make rusage available.
 struct rusage;
 
-#define WCONTINUED 1
-#define WNOHANG 2
-#define WUNTRACED 4
-#define WEXITED 8
-#define WNOWAIT 16
-#define WSTOPPED 32
-
-#define WCOREFLAG 0x80
-
-// TODO: #error if int is smaller than 32 bits
-
-#define WEXITSTATUS(x) ((x) & 0x000000FF)
-#define WIFCONTINUED(x) ((x) & 0x00000100)
-#define WIFEXITED(x) ((x) & 0x00000200)
-#define WIFSIGNALED(x) ((x) & 0x00000400)
-#define WIFSTOPPED(x) ((x) & 0x00000800)
-#define WSTOPSIG(x) (((x) & 0x00FF0000) >> 16)
-#define WTERMSIG(x) (((x) & 0xFF000000) >> 24)
-#define WCOREDUMP(x) ((x) & WCOREFLAG)
-
 // TODO: move to own file and include in sys/types.h
 typedef enum {
 	P_ALL, P_PID, P_PGID
diff --git a/sysdeps/dripos/include/abi-bits/wait.h b/sysdeps/dripos/include/abi-bits/wait.h
new file mode 120000
index 00000000..6d911c7f
--- /dev/null
+++ b/sysdeps/dripos/include/abi-bits/wait.h
@@ -0,0 +1 @@
+../../../../abis/mlibc/wait.h
\ No newline at end of file
diff --git a/sysdeps/lemon/include/abi-bits/wait.h b/sysdeps/lemon/include/abi-bits/wait.h
new file mode 120000
index 00000000..6d911c7f
--- /dev/null
+++ b/sysdeps/lemon/include/abi-bits/wait.h
@@ -0,0 +1 @@
+../../../../abis/mlibc/wait.h
\ No newline at end of file
diff --git a/sysdeps/linux/include/abi-bits/wait.h b/sysdeps/linux/include/abi-bits/wait.h
new file mode 120000
index 00000000..dc39395f
--- /dev/null
+++ b/sysdeps/linux/include/abi-bits/wait.h
@@ -0,0 +1 @@
+../../../../abis/linux/x86_64/wait.h
\ No newline at end of file
diff --git a/sysdeps/managarm/include/abi-bits/wait.h b/sysdeps/managarm/include/abi-bits/wait.h
new file mode 120000
index 00000000..6d911c7f
--- /dev/null
+++ b/sysdeps/managarm/include/abi-bits/wait.h
@@ -0,0 +1 @@
+../../../../abis/mlibc/wait.h
\ No newline at end of file
diff --git a/sysdeps/qword/include/abi-bits/wait.h b/sysdeps/qword/include/abi-bits/wait.h
new file mode 120000
index 00000000..6d911c7f
--- /dev/null
+++ b/sysdeps/qword/include/abi-bits/wait.h
@@ -0,0 +1 @@
+../../../../abis/mlibc/wait.h
\ No newline at end of file
diff --git a/sysdeps/sigma/include/abi-bits/wait.h b/sysdeps/sigma/include/abi-bits/wait.h
new file mode 120000
index 00000000..6d911c7f
--- /dev/null
+++ b/sysdeps/sigma/include/abi-bits/wait.h
@@ -0,0 +1 @@
+../../../../abis/mlibc/wait.h
\ No newline at end of file