diff --git a/src/bun.js/bindings/ProcessBindingUV.cpp b/src/bun.js/bindings/ProcessBindingUV.cpp
index e29cd4d397..49b2647df9 100644
--- a/src/bun.js/bindings/ProcessBindingUV.cpp
+++ b/src/bun.js/bindings/ProcessBindingUV.cpp
@@ -9,259 +9,455 @@
 
 // clang-format off
 
-#if !defined(E2BIG)
-#define E2BIG 7
-#endif
-#if !defined(EACCES)
-#define EACCES 13
-#endif
-#if !defined(EADDRINUSE)
-#define EADDRINUSE 48
-#endif
-#if !defined(EADDRNOTAVAIL)
-#define EADDRNOTAVAIL 49
-#endif
-#if !defined(EAFNOSUPPORT)
-#define EAFNOSUPPORT 47
-#endif
-#if !defined(EAGAIN)
-#define EAGAIN 35
-#endif
-#if !defined(EAI_ADDRFAMILY)
-#define EAI_ADDRFAMILY 3000
-#endif
-#if !defined(EAI_AGAIN)
-#define EAI_AGAIN 3001
-#endif
-#if !defined(EAI_BADFLAGS)
-#define EAI_BADFLAGS 3002
-#endif
-#if !defined(EAI_BADHINTS)
-#define EAI_BADHINTS 3013
-#endif
-#if !defined(EAI_CANCELED)
-#define EAI_CANCELED 3003
-#endif
-#if !defined(EAI_FAIL)
-#define EAI_FAIL 3004
-#endif
-#if !defined(EAI_FAMILY)
-#define EAI_FAMILY 3005
-#endif
-#if !defined(EAI_MEMORY)
-#define EAI_MEMORY 3006
-#endif
-#if !defined(EAI_NODATA)
-#define EAI_NODATA 3007
-#endif
-#if !defined(EAI_NONAME)
-#define EAI_NONAME 3008
-#endif
-#if !defined(EAI_OVERFLOW)
-#define EAI_OVERFLOW 3009
-#endif
-#if !defined(EAI_PROTOCOL)
-#define EAI_PROTOCOL 3014
-#endif
-#if !defined(EAI_SERVICE)
-#define EAI_SERVICE 3010
-#endif
-#if !defined(EAI_SOCKTYPE)
-#define EAI_SOCKTYPE 3011
-#endif
-#if !defined(EALREADY)
-#define EALREADY 37
-#endif
-#if !defined(EBADF)
-#define EBADF 9
-#endif
-#if !defined(EBUSY)
-#define EBUSY 16
-#endif
-#if !defined(ECANCELED)
-#define ECANCELED 89
-#endif
-#if !defined(ECHARSET)
-#define ECHARSET 4080
-#endif
-#if !defined(ECONNABORTED)
-#define ECONNABORTED 53
-#endif
-#if !defined(ECONNREFUSED)
-#define ECONNREFUSED 61
-#endif
-#if !defined(ECONNRESET)
-#define ECONNRESET 54
-#endif
-#if !defined(EDESTADDRREQ)
-#define EDESTADDRREQ 39
-#endif
-#if !defined(EEXIST)
-#define EEXIST 17
-#endif
-#if !defined(EFAULT)
-#define EFAULT 14
-#endif
-#if !defined(EFBIG)
-#define EFBIG 27
-#endif
-#if !defined(EHOSTUNREACH)
-#define EHOSTUNREACH 65
-#endif
-#if !defined(EINTR)
-#define EINTR 4
-#endif
-#if !defined(EINVAL)
-#define EINVAL 22
-#endif
-#if !defined(EIO)
-#define EIO 5
-#endif
-#if !defined(EISCONN)
-#define EISCONN 56
-#endif
-#if !defined(EISDIR)
-#define EISDIR 21
-#endif
-#if !defined(ELOOP)
-#define ELOOP 62
-#endif
-#if !defined(EMFILE)
-#define EMFILE 24
-#endif
-#if !defined(EMSGSIZE)
-#define EMSGSIZE 40
-#endif
-#if !defined(ENAMETOOLONG)
-#define ENAMETOOLONG 63
-#endif
-#if !defined(ENETDOWN)
-#define ENETDOWN 50
-#endif
-#if !defined(ENETUNREACH)
-#define ENETUNREACH 51
-#endif
-#if !defined(ENFILE)
-#define ENFILE 23
-#endif
-#if !defined(ENOBUFS)
-#define ENOBUFS 55
-#endif
-#if !defined(ENODEV)
-#define ENODEV 19
-#endif
-#if !defined(ENOENT)
-#define ENOENT 2
-#endif
-#if !defined(ENOMEM)
-#define ENOMEM 12
-#endif
-#if !defined(ENONET)
-#define ENONET 4056
-#endif
-#if !defined(ENOPROTOOPT)
-#define ENOPROTOOPT 42
-#endif
-#if !defined(ENOSPC)
-#define ENOSPC 28
-#endif
-#if !defined(ENOSYS)
-#define ENOSYS 78
-#endif
-#if !defined(ENOTCONN)
-#define ENOTCONN 57
-#endif
-#if !defined(ENOTDIR)
-#define ENOTDIR 20
-#endif
-#if !defined(ENOTEMPTY)
-#define ENOTEMPTY 66
-#endif
-#if !defined(ENOTSOCK)
-#define ENOTSOCK 38
-#endif
-#if !defined(ENOTSUP)
-#define ENOTSUP 45
-#endif
-#if !defined(EOVERFLOW)
-#define EOVERFLOW 84
-#endif
-#if !defined(EPERM)
-#define EPERM 1
-#endif
-#if !defined(EPIPE)
-#define EPIPE 32
-#endif
-#if !defined(EPROTO)
-#define EPROTO 100
-#endif
-#if !defined(EPROTONOSUPPORT)
-#define EPROTONOSUPPORT 43
-#endif
-#if !defined(EPROTOTYPE)
-#define EPROTOTYPE 41
-#endif
-#if !defined(ERANGE)
-#define ERANGE 34
-#endif
-#if !defined(EROFS)
-#define EROFS 30
-#endif
-#if !defined(ESHUTDOWN)
-#define ESHUTDOWN 58
-#endif
-#if !defined(ESPIPE)
-#define ESPIPE 29
-#endif
-#if !defined(ESRCH)
-#define ESRCH 3
-#endif
-#if !defined(ETIMEDOUT)
-#define ETIMEDOUT 60
-#endif
-#if !defined(ETXTBSY)
-#define ETXTBSY 26
-#endif
-#if !defined(EXDEV)
-#define EXDEV 18
-#endif
-#if !defined(UNKNOWN)
-#define UNKNOWN 4094
-#endif
-// this is intentionally always overridden
-#if defined(EOF)
-#undef EOF
-#endif
-#define EOF 4095
-#if !defined(ENXIO)
-#define ENXIO 6
-#endif
-#if !defined(EMLINK)
-#define EMLINK 31
-#endif
-#if !defined(EHOSTDOWN)
-#define EHOSTDOWN 64
-#endif
-#if !defined(EREMOTEIO)
-#define EREMOTEIO 4030
-#endif
-#if !defined(ENOTTY)
-#define ENOTTY 25
-#endif
-#if !defined(EFTYPE)
-#define EFTYPE 79
-#endif
-#if !defined(EILSEQ)
-#define EILSEQ 92
-#endif
-#if !defined(ESOCKTNOSUPPORT)
-#define ESOCKTNOSUPPORT 44
-#endif
-#if !defined(ENODATA)
-#define ENODATA 96
-#endif
-#if !defined(EUNATCH)
-#define EUNATCH 4023
+#if EDOM > 0
+# define UV__ERR(x) (-(x))
+#else
+# define UV__ERR(x) (x)
+#endif
+
+#define UV__EOF     (-4095)
+#define UV__UNKNOWN (-4094)
+
+#define UV__EAI_ADDRFAMILY  (-3000)
+#define UV__EAI_AGAIN       (-3001)
+#define UV__EAI_BADFLAGS    (-3002)
+#define UV__EAI_CANCELED    (-3003)
+#define UV__EAI_FAIL        (-3004)
+#define UV__EAI_FAMILY      (-3005)
+#define UV__EAI_MEMORY      (-3006)
+#define UV__EAI_NODATA      (-3007)
+#define UV__EAI_NONAME      (-3008)
+#define UV__EAI_OVERFLOW    (-3009)
+#define UV__EAI_SERVICE     (-3010)
+#define UV__EAI_SOCKTYPE    (-3011)
+#define UV__EAI_BADHINTS    (-3013)
+#define UV__EAI_PROTOCOL    (-3014)
+
+/* Only map to the system errno on non-Windows platforms. It's apparently
+ * a fairly common practice for Windows programmers to redefine errno codes.
+ */
+#if defined(E2BIG) && !defined(_WIN32)
+# define UV__E2BIG UV__ERR(E2BIG)
+#else
+# define UV__E2BIG (-4093)
+#endif
+
+#if defined(EACCES) && !defined(_WIN32)
+# define UV__EACCES UV__ERR(EACCES)
+#else
+# define UV__EACCES (-4092)
+#endif
+
+#if defined(EADDRINUSE) && !defined(_WIN32)
+# define UV__EADDRINUSE UV__ERR(EADDRINUSE)
+#else
+# define UV__EADDRINUSE (-4091)
+#endif
+
+#if defined(EADDRNOTAVAIL) && !defined(_WIN32)
+# define UV__EADDRNOTAVAIL UV__ERR(EADDRNOTAVAIL)
+#else
+# define UV__EADDRNOTAVAIL (-4090)
+#endif
+
+#if defined(EAFNOSUPPORT) && !defined(_WIN32)
+# define UV__EAFNOSUPPORT UV__ERR(EAFNOSUPPORT)
+#else
+# define UV__EAFNOSUPPORT (-4089)
+#endif
+
+#if defined(EAGAIN) && !defined(_WIN32)
+# define UV__EAGAIN UV__ERR(EAGAIN)
+#else
+# define UV__EAGAIN (-4088)
+#endif
+
+#if defined(EALREADY) && !defined(_WIN32)
+# define UV__EALREADY UV__ERR(EALREADY)
+#else
+# define UV__EALREADY (-4084)
+#endif
+
+#if defined(EBADF) && !defined(_WIN32)
+# define UV__EBADF UV__ERR(EBADF)
+#else
+# define UV__EBADF (-4083)
+#endif
+
+#if defined(EBUSY) && !defined(_WIN32)
+# define UV__EBUSY UV__ERR(EBUSY)
+#else
+# define UV__EBUSY (-4082)
+#endif
+
+#if defined(ECANCELED) && !defined(_WIN32)
+# define UV__ECANCELED UV__ERR(ECANCELED)
+#else
+# define UV__ECANCELED (-4081)
+#endif
+
+#if defined(ECHARSET) && !defined(_WIN32)
+# define UV__ECHARSET UV__ERR(ECHARSET)
+#else
+# define UV__ECHARSET (-4080)
+#endif
+
+#if defined(ECONNABORTED) && !defined(_WIN32)
+# define UV__ECONNABORTED UV__ERR(ECONNABORTED)
+#else
+# define UV__ECONNABORTED (-4079)
+#endif
+
+#if defined(ECONNREFUSED) && !defined(_WIN32)
+# define UV__ECONNREFUSED UV__ERR(ECONNREFUSED)
+#else
+# define UV__ECONNREFUSED (-4078)
+#endif
+
+#if defined(ECONNRESET) && !defined(_WIN32)
+# define UV__ECONNRESET UV__ERR(ECONNRESET)
+#else
+# define UV__ECONNRESET (-4077)
+#endif
+
+#if defined(EDESTADDRREQ) && !defined(_WIN32)
+# define UV__EDESTADDRREQ UV__ERR(EDESTADDRREQ)
+#else
+# define UV__EDESTADDRREQ (-4076)
+#endif
+
+#if defined(EEXIST) && !defined(_WIN32)
+# define UV__EEXIST UV__ERR(EEXIST)
+#else
+# define UV__EEXIST (-4075)
+#endif
+
+#if defined(EFAULT) && !defined(_WIN32)
+# define UV__EFAULT UV__ERR(EFAULT)
+#else
+# define UV__EFAULT (-4074)
+#endif
+
+#if defined(EHOSTUNREACH) && !defined(_WIN32)
+# define UV__EHOSTUNREACH UV__ERR(EHOSTUNREACH)
+#else
+# define UV__EHOSTUNREACH (-4073)
+#endif
+
+#if defined(EINTR) && !defined(_WIN32)
+# define UV__EINTR UV__ERR(EINTR)
+#else
+# define UV__EINTR (-4072)
+#endif
+
+#if defined(EINVAL) && !defined(_WIN32)
+# define UV__EINVAL UV__ERR(EINVAL)
+#else
+# define UV__EINVAL (-4071)
+#endif
+
+#if defined(EIO) && !defined(_WIN32)
+# define UV__EIO UV__ERR(EIO)
+#else
+# define UV__EIO (-4070)
+#endif
+
+#if defined(EISCONN) && !defined(_WIN32)
+# define UV__EISCONN UV__ERR(EISCONN)
+#else
+# define UV__EISCONN (-4069)
+#endif
+
+#if defined(EISDIR) && !defined(_WIN32)
+# define UV__EISDIR UV__ERR(EISDIR)
+#else
+# define UV__EISDIR (-4068)
+#endif
+
+#if defined(ELOOP) && !defined(_WIN32)
+# define UV__ELOOP UV__ERR(ELOOP)
+#else
+# define UV__ELOOP (-4067)
+#endif
+
+#if defined(EMFILE) && !defined(_WIN32)
+# define UV__EMFILE UV__ERR(EMFILE)
+#else
+# define UV__EMFILE (-4066)
+#endif
+
+#if defined(EMSGSIZE) && !defined(_WIN32)
+# define UV__EMSGSIZE UV__ERR(EMSGSIZE)
+#else
+# define UV__EMSGSIZE (-4065)
+#endif
+
+#if defined(ENAMETOOLONG) && !defined(_WIN32)
+# define UV__ENAMETOOLONG UV__ERR(ENAMETOOLONG)
+#else
+# define UV__ENAMETOOLONG (-4064)
+#endif
+
+#if defined(ENETDOWN) && !defined(_WIN32)
+# define UV__ENETDOWN UV__ERR(ENETDOWN)
+#else
+# define UV__ENETDOWN (-4063)
+#endif
+
+#if defined(ENETUNREACH) && !defined(_WIN32)
+# define UV__ENETUNREACH UV__ERR(ENETUNREACH)
+#else
+# define UV__ENETUNREACH (-4062)
+#endif
+
+#if defined(ENFILE) && !defined(_WIN32)
+# define UV__ENFILE UV__ERR(ENFILE)
+#else
+# define UV__ENFILE (-4061)
+#endif
+
+#if defined(ENOBUFS) && !defined(_WIN32)
+# define UV__ENOBUFS UV__ERR(ENOBUFS)
+#else
+# define UV__ENOBUFS (-4060)
+#endif
+
+#if defined(ENODEV) && !defined(_WIN32)
+# define UV__ENODEV UV__ERR(ENODEV)
+#else
+# define UV__ENODEV (-4059)
+#endif
+
+#if defined(ENOENT) && !defined(_WIN32)
+# define UV__ENOENT UV__ERR(ENOENT)
+#else
+# define UV__ENOENT (-4058)
+#endif
+
+#if defined(ENOMEM) && !defined(_WIN32)
+# define UV__ENOMEM UV__ERR(ENOMEM)
+#else
+# define UV__ENOMEM (-4057)
+#endif
+
+#if defined(ENONET) && !defined(_WIN32)
+# define UV__ENONET UV__ERR(ENONET)
+#else
+# define UV__ENONET (-4056)
+#endif
+
+#if defined(ENOSPC) && !defined(_WIN32)
+# define UV__ENOSPC UV__ERR(ENOSPC)
+#else
+# define UV__ENOSPC (-4055)
+#endif
+
+#if defined(ENOSYS) && !defined(_WIN32)
+# define UV__ENOSYS UV__ERR(ENOSYS)
+#else
+# define UV__ENOSYS (-4054)
+#endif
+
+#if defined(ENOTCONN) && !defined(_WIN32)
+# define UV__ENOTCONN UV__ERR(ENOTCONN)
+#else
+# define UV__ENOTCONN (-4053)
+#endif
+
+#if defined(ENOTDIR) && !defined(_WIN32)
+# define UV__ENOTDIR UV__ERR(ENOTDIR)
+#else
+# define UV__ENOTDIR (-4052)
+#endif
+
+#if defined(ENOTEMPTY) && !defined(_WIN32)
+# define UV__ENOTEMPTY UV__ERR(ENOTEMPTY)
+#else
+# define UV__ENOTEMPTY (-4051)
+#endif
+
+#if defined(ENOTSOCK) && !defined(_WIN32)
+# define UV__ENOTSOCK UV__ERR(ENOTSOCK)
+#else
+# define UV__ENOTSOCK (-4050)
+#endif
+
+#if defined(ENOTSUP) && !defined(_WIN32)
+# define UV__ENOTSUP UV__ERR(ENOTSUP)
+#else
+# define UV__ENOTSUP (-4049)
+#endif
+
+#if defined(EPERM) && !defined(_WIN32)
+# define UV__EPERM UV__ERR(EPERM)
+#else
+# define UV__EPERM (-4048)
+#endif
+
+#if defined(EPIPE) && !defined(_WIN32)
+# define UV__EPIPE UV__ERR(EPIPE)
+#else
+# define UV__EPIPE (-4047)
+#endif
+
+#if defined(EPROTO) && !defined(_WIN32)
+# define UV__EPROTO UV__ERR(EPROTO)
+#else
+# define UV__EPROTO (-4046)
+#endif
+
+#if defined(EPROTONOSUPPORT) && !defined(_WIN32)
+# define UV__EPROTONOSUPPORT UV__ERR(EPROTONOSUPPORT)
+#else
+# define UV__EPROTONOSUPPORT (-4045)
+#endif
+
+#if defined(EPROTOTYPE) && !defined(_WIN32)
+# define UV__EPROTOTYPE UV__ERR(EPROTOTYPE)
+#else
+# define UV__EPROTOTYPE (-4044)
+#endif
+
+#if defined(EROFS) && !defined(_WIN32)
+# define UV__EROFS UV__ERR(EROFS)
+#else
+# define UV__EROFS (-4043)
+#endif
+
+#if defined(ESHUTDOWN) && !defined(_WIN32)
+# define UV__ESHUTDOWN UV__ERR(ESHUTDOWN)
+#else
+# define UV__ESHUTDOWN (-4042)
+#endif
+
+#if defined(ESPIPE) && !defined(_WIN32)
+# define UV__ESPIPE UV__ERR(ESPIPE)
+#else
+# define UV__ESPIPE (-4041)
+#endif
+
+#if defined(ESRCH) && !defined(_WIN32)
+# define UV__ESRCH UV__ERR(ESRCH)
+#else
+# define UV__ESRCH (-4040)
+#endif
+
+#if defined(ETIMEDOUT) && !defined(_WIN32)
+# define UV__ETIMEDOUT UV__ERR(ETIMEDOUT)
+#else
+# define UV__ETIMEDOUT (-4039)
+#endif
+
+#if defined(ETXTBSY) && !defined(_WIN32)
+# define UV__ETXTBSY UV__ERR(ETXTBSY)
+#else
+# define UV__ETXTBSY (-4038)
+#endif
+
+#if defined(EXDEV) && !defined(_WIN32)
+# define UV__EXDEV UV__ERR(EXDEV)
+#else
+# define UV__EXDEV (-4037)
+#endif
+
+#if defined(EFBIG) && !defined(_WIN32)
+# define UV__EFBIG UV__ERR(EFBIG)
+#else
+# define UV__EFBIG (-4036)
+#endif
+
+#if defined(ENOPROTOOPT) && !defined(_WIN32)
+# define UV__ENOPROTOOPT UV__ERR(ENOPROTOOPT)
+#else
+# define UV__ENOPROTOOPT (-4035)
+#endif
+
+#if defined(ERANGE) && !defined(_WIN32)
+# define UV__ERANGE UV__ERR(ERANGE)
+#else
+# define UV__ERANGE (-4034)
+#endif
+
+#if defined(ENXIO) && !defined(_WIN32)
+# define UV__ENXIO UV__ERR(ENXIO)
+#else
+# define UV__ENXIO (-4033)
+#endif
+
+#if defined(EMLINK) && !defined(_WIN32)
+# define UV__EMLINK UV__ERR(EMLINK)
+#else
+# define UV__EMLINK (-4032)
+#endif
+
+/* EHOSTDOWN is not visible on BSD-like systems when _POSIX_C_SOURCE is
+ * defined. Fortunately, its value is always 64 so it's possible albeit
+ * icky to hard-code it.
+ */
+#if defined(EHOSTDOWN) && !defined(_WIN32)
+# define UV__EHOSTDOWN UV__ERR(EHOSTDOWN)
+#elif defined(__APPLE__) || \
+      defined(__DragonFly__) || \
+      defined(__FreeBSD__) || \
+      defined(__NetBSD__) || \
+      defined(__OpenBSD__)
+# define UV__EHOSTDOWN (-64)
+#else
+# define UV__EHOSTDOWN (-4031)
+#endif
+
+#if defined(EREMOTEIO) && !defined(_WIN32)
+# define UV__EREMOTEIO UV__ERR(EREMOTEIO)
+#else
+# define UV__EREMOTEIO (-4030)
+#endif
+
+#if defined(ENOTTY) && !defined(_WIN32)
+# define UV__ENOTTY UV__ERR(ENOTTY)
+#else
+# define UV__ENOTTY (-4029)
+#endif
+
+#if defined(EFTYPE) && !defined(_WIN32)
+# define UV__EFTYPE UV__ERR(EFTYPE)
+#else
+# define UV__EFTYPE (-4028)
+#endif
+
+#if defined(EILSEQ) && !defined(_WIN32)
+# define UV__EILSEQ UV__ERR(EILSEQ)
+#else
+# define UV__EILSEQ (-4027)
+#endif
+
+#if defined(EOVERFLOW) && !defined(_WIN32)
+# define UV__EOVERFLOW UV__ERR(EOVERFLOW)
+#else
+# define UV__EOVERFLOW (-4026)
+#endif
+
+#if defined(ESOCKTNOSUPPORT) && !defined(_WIN32)
+# define UV__ESOCKTNOSUPPORT UV__ERR(ESOCKTNOSUPPORT)
+#else
+# define UV__ESOCKTNOSUPPORT (-4025)
+#endif
+
+/* FreeBSD defines ENODATA in /usr/include/c++/v1/errno.h which is only visible
+ * if C++ is being used. Define it directly to avoid problems when integrating
+ * libuv in a C++ project.
+ */
+#if defined(ENODATA) && !defined(_WIN32)
+# define UV__ENODATA UV__ERR(ENODATA)
+#elif defined(__FreeBSD__)
+# define UV__ENODATA (-9919)
+#else
+# define UV__ENODATA (-4024)
+#endif
+
+#if defined(EUNATCH) && !defined(_WIN32)
+# define UV__EUNATCH UV__ERR(EUNATCH)
+#else
+# define UV__EUNATCH (-4023)
 #endif
 
 #define BUN_UV_ERRNO_MAP(macro) \
@@ -368,7 +564,7 @@ JSC_DEFINE_HOST_FUNCTION(jsErrname, (JSGlobalObject * globalObject, JSC::CallFra
 
     auto err = arg0.toInt32(globalObject);
 #define CASE(name, desc) \
-    if (err == -name) return JSValue::encode(JSC::jsString(vm, String(#name##_s)));
+    if (err == -UV__##name) return JSValue::encode(JSC::jsString(vm, String(#name##_s)));
 
     BUN_UV_ERRNO_MAP(CASE)
 #undef CASE
@@ -389,7 +585,7 @@ JSC_DEFINE_HOST_FUNCTION(jsGetErrorMap, (JSGlobalObject * globalObject, JSC::Cal
         map->set(globalObject, JSC::jsNumber(value), arr);
     };
 
-#define PUT_PROPERTY(name, desc) putProperty(vm, map, globalObject, #name##_s, -name, desc##_s);
+#define PUT_PROPERTY(name, desc) putProperty(vm, map, globalObject, #name##_s, -UV__##name, desc##_s);
     BUN_UV_ERRNO_MAP(PUT_PROPERTY)
 #undef PUT_PROPERTY
 
@@ -410,7 +606,7 @@ JSObject* create(VM& vm, JSGlobalObject* globalObject)
     };
 
 #define PUT_PROPERTY(name, desc) \
-    putNamedProperty(vm, bindingObject, "UV_" #name##_s, -name);
+    putNamedProperty(vm, bindingObject, "UV_" #name##_s, -UV__##name);
     BUN_UV_ERRNO_MAP(PUT_PROPERTY)
 #undef PUT_PROPERTY