From e427c7c1d8077cad009f84eca9186efc584ac297 Mon Sep 17 00:00:00 2001
From: Ruslan Baratov <ruslan_baratov@yahoo.com>
Date: Fri, 1 Mar 2019 21:08:03 +0300
Subject: iOS: Add IOS variable

Since commit 11da882a12 (Apple: Introduce separate system name for iOS,
tvOS, and watchOS, 2018-01-15, v3.14.0-rc1~14^2~1) we support setting
`CMAKE_SYSTEM_NAME` to `iOS`.  Existing iOS toolchain files already
set `IOS` as a short-hand variable, so do the same here.
---
 Help/manual/cmake-variables.7.rst                         | 1 +
 Help/variable/IOS.rst                                     | 4 ++++
 Modules/Platform/iOS-Initialize.cmake                     | 2 ++
 Tests/RunCMake/XcodeProject/XcodeIOSInstallCombined.cmake | 4 ++++
 4 files changed, 11 insertions(+)
 create mode 100644 Help/variable/IOS.rst

diff --git a/Help/manual/cmake-variables.7.rst b/Help/manual/cmake-variables.7.rst
index 83c88a5..7609597 100644
--- a/Help/manual/cmake-variables.7.rst
+++ b/Help/manual/cmake-variables.7.rst
@@ -259,6 +259,7 @@ Variables that Describe the System
    /variable/CMAKE_SYSTEM_VERSION
    /variable/CYGWIN
    /variable/GHS-MULTI
+   /variable/IOS
    /variable/MINGW
    /variable/MSVC
    /variable/MSVC10
diff --git a/Help/variable/IOS.rst b/Help/variable/IOS.rst
new file mode 100644
index 0000000..e5cc3f6
--- /dev/null
+++ b/Help/variable/IOS.rst
@@ -0,0 +1,4 @@
+IOS
+---
+
+Set to ``1`` when the target system (:variable:`CMAKE_SYSTEM_NAME`) is ``iOS``.
diff --git a/Modules/Platform/iOS-Initialize.cmake b/Modules/Platform/iOS-Initialize.cmake
index 41399a3..301ca4c 100644
--- a/Modules/Platform/iOS-Initialize.cmake
+++ b/Modules/Platform/iOS-Initialize.cmake
@@ -4,4 +4,6 @@ if(NOT _CMAKE_OSX_SYSROOT_PATH MATCHES "/iPhone(OS|Simulator)")
   message(FATAL_ERROR "${CMAKE_OSX_SYSROOT} is not an iOS SDK")
 endif()
 
+set(IOS 1)
+
 set(_CMAKE_FEATURE_DETECTION_TARGET_TYPE STATIC_LIBRARY)
diff --git a/Tests/RunCMake/XcodeProject/XcodeIOSInstallCombined.cmake b/Tests/RunCMake/XcodeProject/XcodeIOSInstallCombined.cmake
index 7f31d94..f6c00b1 100644
--- a/Tests/RunCMake/XcodeProject/XcodeIOSInstallCombined.cmake
+++ b/Tests/RunCMake/XcodeProject/XcodeIOSInstallCombined.cmake
@@ -6,6 +6,10 @@ if(XCODE_VERSION VERSION_GREATER_EQUAL 9)
   set(CMAKE_OSX_DEPLOYMENT_TARGET 10)
 endif()
 
+if(NOT IOS)
+  message(FATAL_ERROR "IOS variable is not set")
+endif()
+
 set(CMAKE_XCODE_ATTRIBUTE_CODE_SIGNING_REQUIRED "NO")
 set(CMAKE_XCODE_ATTRIBUTE_DEBUG_INFORMATION_FORMAT "dwarf")
 set(CMAKE_XCODE_ATTRIBUTE_ENABLE_BITCODE "NO")
-- 
cgit v0.12