cmake: do not build unit tests for ios

Author: igagis

build/cmake/CMakeLists.txt

@@ -24,8 +24,4 @@ myci_declare_library(${PROJECT_NAME}
         ../../src/${PROJECT_NAME}
 )
 
-# if the library is compiled by vcpkg during the port build,
-# then we don't need to build unit tests
-if(NOT IS_VCPKG_PORT_BUILD)
-    include(unit_tests.cmake)
-endif()
+include(unit_tests.cmake)

build/cmake/unit_tests.cmake

@@ -1,3 +1,14 @@
+# if the library is compiled by vcpkg during the port build,
+# then we don't need to build unit tests
+if(IS_VCPKG_PORT_BUILD)
+    return()
+endif()
+
+# no unit tests for ios
+if(IOS)
+    return()
+endif()
+
 set(test_srcs)
 myci_add_source_files(test_srcs
     DIRECTORY