diff --git a/kotlin-native/platformLibs/src/platform/ios/posix.def b/kotlin-native/platformLibs/src/platform/ios/posix.def
index 77f98f3ba34..e1d3037a1c9 100644
--- a/kotlin-native/platformLibs/src/platform/ios/posix.def
+++ b/kotlin-native/platformLibs/src/platform/ios/posix.def
@@ -13,7 +13,7 @@ headers = alloca.h assert.h complex.h ctype.h dirent.h dlfcn.h err.h errno.h fcn
     sys/queue.h sys/select.h sys/shm.h sys/stat.h \
     sys/syslimits.h sys/time.h sys/times.h sys/utsname.h sys/wait.h
 
-compilerOpts = -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE
+compilerOpts = -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -D__CCT_ENABLE_USER_SPACE
 linkerOpts = -ldl -lresolv
 excludedFunctions = acl_valid_link_np add_profil pfctlinput profil unwhiteout zopen getdirentries \
                     uuid_generate_early_random setgrfile \
diff --git a/kotlin-native/platformLibs/src/platform/osx/darwin.def b/kotlin-native/platformLibs/src/platform/osx/darwin.def
index fa8ac2501bd..e75d1b39ab3 100644
--- a/kotlin-native/platformLibs/src/platform/osx/darwin.def
+++ b/kotlin-native/platformLibs/src/platform/osx/darwin.def
@@ -40,6 +40,6 @@ excludedFunctions = __tg_promote KERNEL_AUDIT_TOKEN KERNEL_SECURITY_TOKEN \
                     xpc_debugger_api_misuse_info \
                     vm_stats
 
-compilerOpts.macos_x64 = -D_XOPEN_SOURCE -DSHARED_LIBBIND -D_DARWIN_NO_64_BIT_INODE -DSYSCTL_DEF_ENABLED
-compilerOpts.macos_arm64 = -D_XOPEN_SOURCE -DSHARED_LIBBIND -DSYSCTL_DEF_ENABLED
+compilerOpts.macos_x64 = -D_XOPEN_SOURCE -DSHARED_LIBBIND -D_DARWIN_NO_64_BIT_INODE -DSYSCTL_DEF_ENABLED -D__CCT_ENABLE_USER_SPACE
+compilerOpts.macos_arm64 = -D_XOPEN_SOURCE -DSHARED_LIBBIND -DSYSCTL_DEF_ENABLED -D__CCT_ENABLE_USER_SPACE
 linkerOpts = -ldl -lz -lcurses -lbz2 -lcompression -late -lbsm
diff --git a/kotlin-native/platformLibs/src/platform/osx/posix.def b/kotlin-native/platformLibs/src/platform/osx/posix.def
index b3ab42215e0..6a5eabeacc3 100644
--- a/kotlin-native/platformLibs/src/platform/osx/posix.def
+++ b/kotlin-native/platformLibs/src/platform/osx/posix.def
@@ -13,8 +13,8 @@ headers = alloca.h ar.h assert.h complex.h ctype.h dirent.h dlfcn.h err.h errno.
     sys/queue.h sys/select.h sys/shm.h sys/socket.h sys/stat.h \
     sys/syslimits.h sys/time.h sys/times.h sys/utsname.h sys/wait.h
 
-compilerOpts.macos_x64 = -D_XOPEN_SOURCE -DSHARED_LIBBIND -D_DARWIN_NO_64_BIT_INODE -D_DARWIN_C_SOURCE
-compilerOpts.macos_arm64 = -D_XOPEN_SOURCE -DSHARED_LIBBIND -D_DARWIN_C_SOURCE
+compilerOpts.macos_x64 = -D_XOPEN_SOURCE -DSHARED_LIBBIND -D_DARWIN_NO_64_BIT_INODE -D_DARWIN_C_SOURCE -D__CCT_ENABLE_USER_SPACE
+compilerOpts.macos_arm64 = -D_XOPEN_SOURCE -DSHARED_LIBBIND -D_DARWIN_C_SOURCE -D__CCT_ENABLE_USER_SPACE
 # -D_ANSI_SOURCE, sigh, breaks user_addr_t
 excludedFunctions = KERNEL_AUDIT_TOKEN KERNEL_SECURITY_TOKEN add_profil             \
                     addrsel_policy_init                                             \
diff --git a/kotlin-native/platformLibs/src/platform/tvos/posix.def b/kotlin-native/platformLibs/src/platform/tvos/posix.def
index b3d756c6bda..6ea04b71c9f 100644
--- a/kotlin-native/platformLibs/src/platform/tvos/posix.def
+++ b/kotlin-native/platformLibs/src/platform/tvos/posix.def
@@ -13,7 +13,7 @@ headers = alloca.h assert.h complex.h ctype.h dirent.h dlfcn.h err.h errno.h fcn
     sys/queue.h sys/select.h sys/shm.h sys/stat.h \
     sys/syslimits.h sys/time.h sys/times.h sys/utsname.h sys/wait.h
 
-compilerOpts = -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE
+compilerOpts = -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -D__CCT_ENABLE_USER_SPACE
 linkerOpts = -ldl -lresolv
 
 excludedFunctions = acl_valid_link_np pfctlinput profil unwhiteout zopen getdirentries \
diff --git a/kotlin-native/platformLibs/src/platform/watchos/posix.def b/kotlin-native/platformLibs/src/platform/watchos/posix.def
index c4709671634..8a8996b59f8 100644
--- a/kotlin-native/platformLibs/src/platform/watchos/posix.def
+++ b/kotlin-native/platformLibs/src/platform/watchos/posix.def
@@ -13,7 +13,7 @@ headers = alloca.h assert.h complex.h ctype.h dirent.h dlfcn.h err.h errno.h fcn
     sys/queue.h sys/select.h sys/shm.h sys/stat.h \
     sys/syslimits.h sys/time.h sys/times.h sys/utsname.h sys/wait.h
 
-compilerOpts = -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE
+compilerOpts = -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -D__CCT_ENABLE_USER_SPACE
 linkerOpts = -ldl -lresolv
 
 excludedFunctions = acl_valid_link_np pfctlinput profil unwhiteout zopen getdirentries \