Merge topic 'xcode-10-legacy-build-system'

ca69206893 Tests: Do not use i386 architecture with Xcode 10 and above
71fa78ff7a Tests: Teach RunCMake to ignore Xcode missing file type warnings
057ecb8f6f C++ feature checks: Ignore Xcode warnings
985d3a162c Xcode: Use legacy build system

Acked-by: Kitware Robot <[email protected]>
Merge-request: !2151

Source/Checks/cm_cxx_features.cmake

@@ -22,6 +22,8 @@ function(cm_check_cxx_feature name)
     # Filter out warnings caused by local configuration.
     string(REGEX REPLACE "[^\n]*warning:[^\n]*directory not found for option[^\n]*" "" check_output "${check_output}")
     string(REGEX REPLACE "[^\n]*warning:[^\n]*object file compiled with -mlong-branch which is no longer needed[^\n]*" "" check_output "${check_output}")
+    # Filter out xcodebuild warnings.
+    string(REGEX REPLACE "[^\n]* xcodebuild\\[[0-9]*:[0-9]*\\] warning: [^\n]*" "" check_output "${check_output}")
     # If using the feature causes warnings, treat it as broken/unavailable.
     if(check_output MATCHES "[Ww]arning")
       set(CMake_HAVE_CXX_${FEATURE} OFF CACHE INTERNAL "TRY_COMPILE" FORCE)

Source/cmGlobalXCodeGenerator.cxx

@@ -3342,15 +3342,10 @@ void cmGlobalXCodeGenerator::OutputXCodeProject(
   }
   this->WriteXCodePBXProj(fout, root, generators);
 
-  // Since the lowest available Xcode version for testing was 6.4,
-  // I'm setting this as a limit then
-  if (this->XcodeVersion >= 64) {
-    if (root->GetMakefile()->GetCMakeInstance()->GetIsInTryCompile() ||
-        root->GetMakefile()->IsOn("CMAKE_XCODE_GENERATE_SCHEME")) {
-      this->OutputXCodeSharedSchemes(xcodeDir);
-      this->OutputXCodeWorkspaceSettings(xcodeDir);
-    }
+  if (this->IsGeneratingScheme(root)) {
+    this->OutputXCodeSharedSchemes(xcodeDir);
   }
+  this->OutputXCodeWorkspaceSettings(xcodeDir, root);
 
   this->ClearXCodeObjects();
 
@@ -3360,6 +3355,15 @@ void cmGlobalXCodeGenerator::OutputXCodeProject(
     root->GetBinaryDirectory());
 }
 
+bool cmGlobalXCodeGenerator::IsGeneratingScheme(cmLocalGenerator* root) const
+{
+  // Since the lowest available Xcode version for testing was 6.4,
+  // I'm setting this as a limit then
+  return this->XcodeVersion >= 64 &&
+    (root->GetMakefile()->GetCMakeInstance()->GetIsInTryCompile() ||
+     root->GetMakefile()->IsOn("CMAKE_XCODE_GENERATE_SCHEME"));
+}
+
 void cmGlobalXCodeGenerator::OutputXCodeSharedSchemes(
   const std::string& xcProjDir)
 {
@@ -3399,7 +3403,7 @@ void cmGlobalXCodeGenerator::OutputXCodeSharedSchemes(
 }
 
 void cmGlobalXCodeGenerator::OutputXCodeWorkspaceSettings(
-  const std::string& xcProjDir)
+  const std::string& xcProjDir, cmLocalGenerator* root)
 {
   std::string xcodeSharedDataDir = xcProjDir;
   xcodeSharedDataDir += "/project.xcworkspace/xcshareddata";
@@ -3421,8 +3425,15 @@ void cmGlobalXCodeGenerator::OutputXCodeWorkspaceSettings(
   xout.StartElement("plist");
   xout.Attribute("version", "1.0");
   xout.StartElement("dict");
-  xout.Element("key", "IDEWorkspaceSharedSettings_AutocreateContextsIfNeeded");
-  xout.Element("false");
+  if (this->XcodeVersion >= 100) {
+    xout.Element("key", "BuildSystemType");
+    xout.Element("string", "Original");
+  }
+  if (this->IsGeneratingScheme(root)) {
+    xout.Element("key",
+                 "IDEWorkspaceSharedSettings_AutocreateContextsIfNeeded");
+    xout.Element("false");
+  }
   xout.EndElement(); // dict
   xout.EndElement(); // plist
   xout.EndDocument();

Source/cmGlobalXCodeGenerator.h

@@ -182,9 +182,11 @@ private:
                           std::vector<cmLocalGenerator*>& generators);
   void OutputXCodeProject(cmLocalGenerator* root,
                           std::vector<cmLocalGenerator*>& generators);
+  bool IsGeneratingScheme(cmLocalGenerator* root) const;
   // Write shared scheme files for all the native targets
   void OutputXCodeSharedSchemes(const std::string& xcProjDir);
-  void OutputXCodeWorkspaceSettings(const std::string& xcProjDir);
+  void OutputXCodeWorkspaceSettings(const std::string& xcProjDir,
+                                    cmLocalGenerator* root);
   void WriteXCodePBXProj(std::ostream& fout, cmLocalGenerator* root,
                          std::vector<cmLocalGenerator*>& generators);
   cmXCodeObject* CreateXCodeFileReferenceFromPath(const std::string& fullpath,

Tests/BuildDepends/Project/CMakeLists.txt

@@ -1,30 +1,30 @@
 cmake_minimum_required(VERSION 2.6)
 project(testRebuild)
 
-function(test_for_xcode4 result_var)
-  set(${result_var} 0 PARENT_SCOPE)
-  if(APPLE)
-    execute_process(COMMAND xcodebuild -version
-      OUTPUT_VARIABLE ov RESULT_VARIABLE rv
+if(APPLE)
+  set(CMake_TEST_XCODE_VERSION 0)
+  if(XCODE_VERSION)
+    set(CMake_TEST_XCODE_VERSION "${XCODE_VERSION}")
+  else()
+    execute_process(
+      COMMAND xcodebuild -version
+      OUTPUT_VARIABLE _version ERROR_VARIABLE _version
       )
-    if("${rv}" STREQUAL "0" AND ov MATCHES "^Xcode ([0-9]+)\\.")
-      if(NOT CMAKE_MATCH_1 VERSION_LESS 4)
-        set(${result_var} 1 PARENT_SCOPE)
-      endif()
+    if(_version MATCHES "^Xcode ([0-9]+(\\.[0-9]+)*)")
+      set(CMake_TEST_XCODE_VERSION "${CMAKE_MATCH_1}")
     endif()
   endif()
-endfunction()
-
-if(APPLE)
   # only use multi-arch if the sysroot exists on this machine
   # Ninja needs -M which could not be used with multiple -arch flags
   if(EXISTS "${CMAKE_OSX_SYSROOT}" AND NOT "${CMAKE_GENERATOR}" MATCHES "Ninja")
-    set(CMAKE_OSX_ARCHITECTURES "ppc;i386")
-    test_for_xcode4(is_xcode4)
-    if(is_xcode4)
-      # Xcode 4, use modern architectures as defaults
-      # Arch 'ppc' no longer works: tools no longer available starting with Xcode 4
+    if(CMake_TEST_XCODE_VERSION VERSION_GREATER_EQUAL 10)
+      # Arch 'i386' no longer works in Xcode 10.
+      set(CMAKE_OSX_ARCHITECTURES x86_64)
+    elseif(CMake_TEST_XCODE_VERSION VERSION_GREATER_EQUAL 4)
+      # Arch 'ppc' no longer works in Xcode 4.
       set(CMAKE_OSX_ARCHITECTURES i386 x86_64)
+    else()
+      set(CMAKE_OSX_ARCHITECTURES ppc i386)
     endif()
   endif()
 endif()

Tests/CMakeLists.txt

@@ -252,6 +252,10 @@ if(BUILD_TESTING)
         set(CMake_TEST_XCODE_VERSION "${CMAKE_MATCH_1}")
       endif()
     endif()
+    if(NOT CMake_TEST_XCODE_VERSION VERSION_LESS 10)
+      # Since Xcode 10 we do not have two supported architectures for the host.
+      set(CTEST_TEST_OSX_ARCH 0)
+    endif()
     if(CMAKE_OSX_SYSROOT)
       execute_process(
         COMMAND xcodebuild -sdk ${CMAKE_OSX_SYSROOT} -version ProductName

Tests/RunCMake/RunCMake.cmake

@@ -109,6 +109,7 @@ function(run_cmake test)
     "|clang[^:]*: warning: the object size sanitizer has no effect at -O0, but is explicitly enabled:"
     "|Error kstat returned"
     "|Hit xcodebuild bug"
+    "|[^\n]*xcodebuild[^\n]*warning: file type[^\n]*is based on missing file type"
     "|ld: 0711-224 WARNING: Duplicate symbol: .__init_aix_libgcc_cxa_atexit"
     "|ld: 0711-345 Use the -bloadmap or -bnoquiet option to obtain more information"
     "|[^\n]*is a member of multiple groups"