Add mac builds to cmake

We need to pass -F or -iframework to gn as a compiler flag, however
cmake keeps this parameter as include dir and adds internally
"-iframework QtFoo.framework/.." for the compiler call. This internal
handling can not be accessed with the genex. Add the manual conversion.

Task-number: QTBUG-91760
Change-Id: Id12831432ccb0516be52f79bd5f6cfcbe7e87d9c
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>

1 files changed, 59 insertions, 8 deletions

diff --git a/cmake/Functions.cmake b/cmake/Functions.cmake
index b63b96ed1..72069e015 100644
--- a/cmake/Functions.cmake
+++ b/cmake/Functions.cmake
@@ -159,8 +159,6 @@ function(configure_gn_target target configType inFilePath outFilePath)
     set(GN_SOURCES ${sourceList})
     list(FILTER GN_HEADERS INCLUDE REGEX "^.+\\.h\"$")
     list(FILTER GN_SOURCES EXCLUDE REGEX "^.+\\.h\"$")
-    string(REPLACE ";" ",\n  " GN_HEADERS "${GN_HEADERS}")
-    string(REPLACE ";" ",\n  " GN_SOURCES "${GN_SOURCES}")
 
     # GN_DEFINES
     get_target_property(gnDefines ${target} GN_DEFINES)
@@ -169,8 +167,6 @@ function(configure_gn_target target configType inFilePath outFilePath)
         list(APPEND GN_ARGS_DEFINES \"-D${gnDefine}\")
         list(APPEND GN_DEFINES \"${gnDefine}\")
     endforeach()
-    string(REPLACE ";" ",\n  " GN_ARGS_DEFINES "${GN_ARGS_DEFINES}")
-    string(REPLACE ";" ",\n  " GN_DEFINES "${GN_DEFINES}")
 
     # GN_INCLUDES
     get_target_property(gnIncludes ${target} GN_INCLUDES)
@@ -180,8 +176,6 @@ function(configure_gn_target target configType inFilePath outFilePath)
         list(APPEND GN_ARGS_INCLUDES \"-I${gnInclude}\")
         list(APPEND GN_INCLUDE_DIRS \"${gnInclude}\")
     endforeach()
-    string(REPLACE ";" ",\n  " GN_ARGS_INCLUDES "${GN_ARGS_INCLUDES}")
-    string(REPLACE ";" ",\n  " GN_INCLUDE_DIRS "${GN_INCLUDE_DIRS}")
 
     # MOC
     get_target_property(GN_MOC_BIN_IN Qt6::moc IMPORTED_LOCATION)
@@ -193,7 +187,6 @@ function(configure_gn_target target configType inFilePath outFilePath)
         list(APPEND GN_CFLAGS_CC \"${gnCxxCompileOption}\")
     endforeach()
     list(REMOVE_DUPLICATES GN_CFLAGS_CC)
-    string(REPLACE ";" ",\n  " GN_CFLAGS_CC "${GN_CFLAGS_CC}")
 
     # GN_CFLAGS_C
     get_target_property(gnCCompileOptions ${target} GN_C_COMPILE_OPTIONS)
@@ -201,7 +194,15 @@ function(configure_gn_target target configType inFilePath outFilePath)
         list(APPEND GN_CFLAGS_C \"${gnCCompileOption}\")
     endforeach()
     list(REMOVE_DUPLICATES GN_CFLAGS_C)
-    string(REPLACE ";" ",\n  " GN_CFLAGS_C "${GN_CFLAGS_C}")
+
+    if(MACOS)
+       recoverFrameworkBuild(GN_INCLUDE_DIRS GN_CFLAGS_C)
+    endif()
+
+    foreach(item GN_HEADERS GN_SOURCES GN_ARGS_DEFINES GN_DEFINES GN_ARGS_INCLUDES
+       GN_INCLUDE_DIRS GN_CFLAGS_CC GN_CFLAGS_C)
+       string(REPLACE ";" ",\n  " ${item} "${${item}}")
+    endforeach()
     configure_file(${inFilePath} ${outFilePath} @ONLY)
 endfunction()
 
@@ -240,3 +241,53 @@ macro(assertRunAsTopLevelBuild condition)
         return()
     endif()
 endmacro()
+
+# we need to pass -F or -iframework in case of frameworks builds, which gn treats as
+# compiler flag and cmake as include dir, so swap it.
+function(recoverFrameworkBuild includeDirs compilerFlags)
+    foreach(includeDir ${${includeDirs}})
+        if (includeDir MATCHES "^\"(.*/([^/]+)\\.framework)\"$")
+           list(APPEND frameworkDirs \"-iframework${CMAKE_MATCH_1}/..\")
+        else()
+           list(APPEND newIncludeDirs ${includeDir})
+        endif()
+    endforeach()
+    set(${includeDirs} ${newIncludeDirs} PARENT_SCOPE)
+    set(${compilerFlags} ${${compilerFlags}} ${frameworkDirs} PARENT_SCOPE)
+endfunction()
+
+# we need to fix namespace ambiguity issues between Qt and Chromium like
+# forward declarations of NSString.
+function(get_forward_declaration_macro result)
+    if(MACOS)
+    set(${result} "Q_FORWARD_DECLARE_OBJC_CLASS(name)=class name;" PARENT_SCOPE)
+else()
+    set(${result} "Q_FORWARD_DECLARE_OBJC_CLASS=QT_FORWARD_DECLARE_CLASS" PARENT_SCOPE)
+endif()
+endfunction()
+
+function(get_darwin_sdk_version result)
+    if(APPLE)
+        if(IOS)
+            set(sdk_name "iphoneos")
+        elseif(TVOS)
+            set(sdk_name "appletvos")
+        elseif(WATCHOS)
+            set(sdk_name "watchos")
+        else()
+            # Default to macOS
+            set(sdk_name "macosx")
+        endif()
+        set(xcrun_version_arg "--show-sdk-version")
+        execute_process(COMMAND /usr/bin/xcrun --sdk ${sdk_name} ${xcrun_version_arg}
+                        OUTPUT_VARIABLE sdk_version
+                        ERROR_VARIABLE xcrun_error)
+        if(NOT sdk_version)
+            message(FATAL_ERROR
+                    "Can't determine darwin ${sdk_name} SDK version. Error: ${xcrun_error}")
+        endif()
+        string(STRIP "${sdk_version}" sdk_version)
+        set(${result} "${sdk_version}" PARENT_SCOPE)
+    endif()
+endfunction()
+