Dev (leetal#103)

* Added a shared build example for macOS as well

* Improve compatibility with more generators (specifically milti-configuration generators like Ninja).

* Refined the caching of variables

* Lots of fixes. Cannot get the mac catalyst builds to work with the xcode generator, but works on all other tested generators.

* Exclude the CMAKE_FIND_ROOT_PATH from macOS builds since it is really only useful when cross-compiling. Also, for other platforms, CMAKE_OSX_SYSROOT_INT is now APPENDED to the CMAKE_FIND_ROOT_PATH to allow users to set own custom paths first for custom find_library behaviours

* Refined some xcode settings as well as fixed a few flaws with the macos builds skipping certain user-defined directories when using any of the find_* commands.

* Fixes for watchos with latest additions

* Added better comment about the symbol visibility

* Exported OSX_ARCHITECTURES as a global property and updated the README to reflect the latest changes.

Co-authored-by: Alexander Widerberg <[email protected]>

.travis.yml

@@ -74,6 +74,11 @@ jobs:
       osx_image: xcode12.2
       env:
         - PLATFORM=MAC DEPLOYMENT_TARGET=10.13
+    - name: "Xcode version 12.2, Target macOS [x86_64] SDK 10.13 [shared example]"
+      stage: "macOS builds"
+      osx_image: xcode12.2
+      env:
+        - PLATFORM=MAC DEPLOYMENT_TARGET=10.13 -DBUILD_SHARED=1
     - name: "Xcode version 12.2, Target macOS on Apple Silicon [arm64] SDK 11.0 [allowed failure]"
       stage: "macOS builds"
       osx_image: xcode12.2

README.md

@@ -73,7 +73,7 @@ cmake --install . --config Release
 
 `CMAKE_OSX_ARCHITECTURES` - Architectures being compiled for (generated from PLATFORM).
 
-`APPLE_TARGET_TRIPLE` - Used by autoconf build systems. NOTE: If "`ARCHS` are overridden, this will **NOT** be set! 
+`APPLE_TARGET_TRIPLE` - Used by autoconf build systems. 
 
 ### Additional Options
 `-DENABLE_BITCODE=(BOOL)` - Enabled by default, specify FALSE or 0 to disable bitcode

example/example-lib/CMakeLists.txt

@@ -8,23 +8,23 @@ MESSAGE( STATUS "CMAKE_CXX_FLAGS: " ${CMAKE_CXX_FLAGS} )
 include(CheckCXXSymbolExists)
 check_cxx_symbol_exists(kqueue sys/event.h HAVE_KQUEUE)
 if(NOT HAVE_KQUEUE)
-  message(FATAL_ERROR "kqueue NOT found!")
+  message(STATUS "kqueue NOT found!")
 else()
   message(STATUS "kqueue found!")
 endif()
 
-find_library(HAVE_APPKIT AppKit)
-if (NOT HAVE_APPKIT)
+find_library(APPKIT_LIBRARY AppKit)
+if (NOT APPKIT_LIBRARY)
   message(STATUS "AppKit.framework NOT found!")
 else()
-  message(STATUS "AppKit.framework found!")
+  message(STATUS "AppKit.framework found! ${APPKIT_LIBRARY}")
 endif()
 
-find_library(HAVE_UIKIT UIKit)
-if (NOT HAVE_UIKIT)
+find_library(UIKIT_LIBRARY UIKit)
+if (NOT UIKIT_LIBRARY)
   message(STATUS "UIKit.framework NOT found!")
 else()
-  message(STATUS "UIKit.framework found!")
+  message(STATUS "UIKit.framework found! ${UIKIT_LIBRARY}")
 endif()
 
 # Hook up XCTest for the supported plaforms (all but WatchOS)