1 files changed, 81 insertions, 0 deletions
diff --git a/cmake/QtPlatformSupport.cmake b/cmake/QtPlatformSupport.cmake
new file mode 100644
index 0000000000..b54d52eba4
--- /dev/null
+++ b/cmake/QtPlatformSupport.cmake
@@ -0,0 +1,81 @@
+function(qt_set01 result)
+    if (${ARGN})
+        set("${result}" 1 PARENT_SCOPE)
+    else()
+        set("${result}" 0 PARENT_SCOPE)
+    endif()
+endfunction()
+
+qt_set01(LINUX CMAKE_SYSTEM_NAME STREQUAL "Linux")
+qt_set01(HPUX CMAKE_SYSTEM_NAME STREQUAL "HPUX")
+qt_set01(ANDROID CMAKE_SYSTEM_NAME STREQUAL "Android")  # FIXME: How to identify this?
+qt_set01(NACL CMAKE_SYSTEM_NAME STREQUAL "NaCl") # FIXME: How to identify this?
+qt_set01(INTEGRITY CMAKE_SYSTEM_NAME STREQUAL "Integrity") # FIXME: How to identify this?
+qt_set01(VXWORKS CMAKE_SYSTEM_NAME STREQUAL "VxWorks") # FIXME: How to identify this?
+qt_set01(QNX CMAKE_SYSTEM_NAME STREQUAL "QNX") # FIXME: How to identify this?
+qt_set01(OPENBSD CMAKE_SYSTEM_NAME STREQUAL "OpenBSD") # FIXME: How to identify this?
+qt_set01(FREEBSD CMAKE_SYSTEM_NAME STREQUAL "FreeBSD") # FIXME: How to identify this?
+qt_set01(NETBSD CMAKE_SYSTEM_NAME STREQUAL "NetBSD") # FIXME: How to identify this?
+qt_set01(WASM CMAKE_SYSTEM_NAME STREQUAL "Emscripten")
+
+qt_set01(BSD APPLE OR OPENBSD OR FREEBSD OR NETBSD)
+
+qt_set01(WINRT WIN32 AND CMAKE_VS_PLATFORM_TOOSLET STREQUAL "winrt") # FIXME: How to identify this?
+
+qt_set01(APPLE_IOS APPLE AND CMAKE_SYSTEM_NAME STREQUAL "iOS")
+qt_set01(APPLE_TVOS APPLE AND CMAKE_SYSTEM_NAME STREQUAL "tvOS")
+qt_set01(APPLE_WATCHOS APPLE AND CMAKE_SYSTEM_NAME STREQUAL "watchOS")
+qt_set01(APPLE_UIKIT APPLE AND (APPLE_IOS OR APPLE_TVOS OR APPLE_WATCHOS))
+qt_set01(APPLE_OSX APPLE AND NOT APPLE_UIKIT)
+
+qt_set01(GCC CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
+qt_set01(CLANG CMAKE_CXX_COMPILER_ID MATCHES "Clang")
+qt_set01(ICC CMAKE_C_COMPILER MATCHES "icc|icl")
+qt_set01(QCC CMAKE_C_COMPILER MATCHES "qcc") # FIXME: How to identify this?
+
+if(CMAKE_SIZEOF_VOID_P EQUAL 8)
+    set(QT_64BIT TRUE)
+elseif(CMAKE_SIZEOF_VOID_P EQUAL 4)
+    set(QT_32BIT TRUE)
+endif()
+
+# Parses a version string like "xx.yy.zz" and sets the major, minor and patch variables.
+function(qt_parse_version_string version_string out_var_prefix)
+    string(REPLACE "." ";" version_list ${version_string})
+    list(LENGTH version_list length)
+
+    set(out_var "${out_var_prefix}_MAJOR")
+    set(value "")
+    if(length GREATER 0)
+        list(GET version_list 0 value)
+        list(REMOVE_AT version_list 0)
+        math(EXPR length "${length}-1")
+    endif()
+    set(${out_var} "${value}" PARENT_SCOPE)
+
+    set(out_var "${out_var_prefix}_MINOR")
+    set(value "")
+    if(length GREATER 0)
+        list(GET version_list 0 value)
+        set(${out_var} "${value}" PARENT_SCOPE)
+        list(REMOVE_AT version_list 0)
+        math(EXPR length "${length}-1")
+    endif()
+    set(${out_var} "${value}" PARENT_SCOPE)
+
+    set(out_var "${out_var_prefix}_PATCH")
+    set(value "")
+    if(length GREATER 0)
+        list(GET version_list 0 value)
+        set(${out_var} "${value}" PARENT_SCOPE)
+        list(REMOVE_AT version_list 0)
+        math(EXPR length "${length}-1")
+    endif()
+    set(${out_var} "${value}" PARENT_SCOPE)
+endfunction()
+
+# Set up the separate version components for the compiler version, to allow mapping of qmake
+# conditions like 'equals(QT_GCC_MAJOR_VERSION,5)'.
+if(CMAKE_CXX_COMPILER_VERSION)
+    qt_parse_version_string("${CMAKE_CXX_COMPILER_VERSION}" "QT_COMPILER_VERSION")
+endif()