diff --git a/src/ext/cmd.cpp b/src/ext/cmd.cpp
index c526c1e8..e3392d28 100644
--- a/src/ext/cmd.cpp
+++ b/src/ext/cmd.cpp
@@ -23,9 +23,12 @@
 #endif
 
 #if (defined(__APPLE__) && defined(__MACH__))
-#include <sys/proc_info.h>
-#include <sys/sysctl.h>
-#include <libproc.h>
+#include <TargetConditionals.h>
+#if !TARGET_OS_IOS
+  #include <sys/proc_info.h>
+  #include <sys/sysctl.h>
+  #include <libproc.h>
+#endif
 #endif
 
 #if (defined(__linux__) || defined(__ANDROID__))
@@ -156,7 +159,7 @@ shell cmd(boost::process::v2::pid_type pid, boost::system::error_code & ec)
 
 }
     
-#elif (defined(__APPLE__) && defined(__MACH__))
+#elif (defined(__APPLE__) && defined(__MACH__)) && !TARGET_OS_IOS
 
 shell cmd(boost::process::v2::pid_type pid, boost::system::error_code & ec)
 {
diff --git a/src/ext/cwd.cpp b/src/ext/cwd.cpp
index 6f13eb83..63a351c1 100644
--- a/src/ext/cwd.cpp
+++ b/src/ext/cwd.cpp
@@ -24,8 +24,11 @@
 #endif
 
 #if (defined(__APPLE__) && defined(__MACH__))
-#include <sys/proc_info.h>
-#include <libproc.h>
+#include <TargetConditionals.h>
+#if !TARGET_OS_IOS
+  #include <sys/proc_info.h>
+  #include <libproc.h>
+#endif
 #endif
 
 #if (defined(BOOST_PROCESS_V2_WINDOWS) || defined(__linux__) || defined(__ANDROID__) || defined(__sun))
@@ -100,7 +103,7 @@ filesystem::path cwd(HANDLE proc)
     return res;
 }
 
-#elif (defined(__APPLE__) && defined(__MACH__))
+#elif (defined(__APPLE__) && defined(__MACH__)) && !TARGET_OS_IOS
 
 filesystem::path cwd(boost::process::v2::pid_type pid, boost::system::error_code & ec)
 {
diff --git a/src/ext/env.cpp b/src/ext/env.cpp
index 1a6ebd43..bae3e68c 100644
--- a/src/ext/env.cpp
+++ b/src/ext/env.cpp
@@ -21,9 +21,12 @@
 #endif
 
 #if (defined(__APPLE__) && defined(__MACH__))
-#include <sys/proc_info.h>
-#include <sys/sysctl.h>
-#include <libproc.h>
+#include <TargetConditionals.h>
+#if !TARGET_OS_IOS
+  #include <sys/proc_info.h>
+  #include <sys/sysctl.h>
+  #include <libproc.h>
+#endif
 #endif
 
 #if (defined(__linux__) || defined(__ANDROID__))
@@ -229,7 +232,7 @@ env_view env(boost::process::v2::pid_type pid, boost::system::error_code & ec)
 	return {};
 }
 
-#elif (defined(__APPLE___) || defined(__MACH__))
+#elif (defined(__APPLE___) || defined(__MACH__)) && !TARGET_OS_IOS
 
 env_view env(boost::process::v2::pid_type pid, boost::system::error_code & ec)
 {
diff --git a/src/ext/exe.cpp b/src/ext/exe.cpp
index 8a57d982..ce1b273c 100644
--- a/src/ext/exe.cpp
+++ b/src/ext/exe.cpp
@@ -25,8 +25,11 @@
 #endif
 
 #if (defined(__APPLE__) && defined(__MACH__))
-#include <sys/proc_info.h>
-#include <libproc.h>
+#include <TargetConditionals.h>
+#if !TARGET_OS_IOS
+  #include <sys/proc_info.h>
+  #include <libproc.h>
+#endif
 #endif
 
 #if (defined(BOOST_PROCESS_V2_WINDOWS) || defined(__linux__) || defined(__ANDROID__) || defined(__sun))
@@ -113,7 +116,7 @@ filesystem::path exe(boost::process::v2::pid_type pid, boost::system::error_code
     return "";
 }
 
-#elif (defined(__APPLE__) && defined(__MACH__))
+#elif (defined(__APPLE__) && defined(__MACH__)) && !TARGET_OS_IOS
 
 filesystem::path exe(boost::process::v2::pid_type pid, boost::system::error_code & ec)
 {
diff --git a/src/ext/proc_info.cpp b/src/ext/proc_info.cpp
index d4314433..57ec6a08 100644
--- a/src/ext/proc_info.cpp
+++ b/src/ext/proc_info.cpp
@@ -16,14 +16,6 @@
 
 #include <string>
 
-#if (defined(__APPLE__) && defined(__MACH__))
-#include <cstdlib>
-#include <sys/types.h>
-#include <sys/sysctl.h>
-#include <sys/proc_info.h>
-#include <libproc.h>
-#endif
-
 BOOST_PROCESS_V2_BEGIN_NAMESPACE
 
 namespace detail
diff --git a/src/pid.cpp b/src/pid.cpp
index ff5f1b1c..d6ab609e 100644
--- a/src/pid.cpp
+++ b/src/pid.cpp
@@ -17,8 +17,11 @@
 #endif
 
 #if (defined(__APPLE__) && defined(__MACH__))
-#include <sys/proc_info.h>
-#include <libproc.h>
+#include <TargetConditionals.h>
+#if !TARGET_OS_IOS
+  #include <sys/proc_info.h>
+  #include <libproc.h>
+#endif
 #endif
 
 #if (defined(__linux__) || defined(__ANDROID__))
@@ -140,7 +143,7 @@ std::vector<pid_type> child_pids(pid_type pid, boost::system::error_code & ec)
     return vec;
 }
 
-#elif (defined(__APPLE__) && defined(__MACH__))
+#elif (defined(__APPLE__) && defined(__MACH__)) && !TARGET_OS_IOS
 
 std::vector<pid_type> all_pids(boost::system::error_code & ec)
 {