qmake/cmake inline/extern constants edge cases

Enhanced qmake/cmake builds during testing of all Win32 build types.

 - throw fatal error for unsupported build types
 - cmake do not show INLINE_CONSTANTS option for MinGW clang shared
   build because it causes crashes

CMakeLists.txt

@@ -63,11 +63,6 @@ feature_option(BUILD_SHARED_LIBS
 feature_option(BUILD_TESTS
     "Build Qt tests" OFF
 )
-feature_option_dependent(INLINE_CONSTANTS
-    "Use inline constants instead of extern constants in the shared build. \
-OFF is highly recommended for the shared build; is always ON for the static build" OFF
-    "BUILD_SHARED_LIBS" ON
-)
 # TODO make it also dependend on NOT isMultiConfig silverqx
 # Depends on tiny_init_cmake_variables_pre() call
 feature_option_dependent(MATCH_EQUAL_EXPORTED_BUILDTREE
@@ -84,6 +79,14 @@ feature_option(VERBOSE_CONFIGURE
     "Show information about PACKAGES_FOUND and PACKAGES_NOT_FOUND in the configure \
 output" OFF
 )
+# MinGW clang shared build crashes with inline constants
+if(NOT MINGW OR NOT CMAKE_CXX_COMPILER_ID STREQUAL "Clang" OR NOT BUILD_SHARED_LIBS)
+    feature_option_dependent(INLINE_CONSTANTS
+        "Use inline constants instead of extern constants in the shared build. \
+OFF is highly recommended for the shared build; is always ON for the static build" OFF
+        "BUILD_SHARED_LIBS" ON
+    )
+endif()
 
 mark_as_advanced(MATCH_EQUAL_EXPORTED_BUILDTREE)
 
@@ -102,6 +105,9 @@ OFF to disable /MP completely.")
 tiny_init_cmake_variables()
 tiny_init_tiny_variables()
 
+# Throw a fatal error for unsupported environments
+tiny_check_unsupported_build()
+
 # TinyORM library header and source files
 # ---
 

cmake/CommonModules/TinyHelpers.cmake

@@ -194,3 +194,13 @@ macro(tiny_set_rc_flags)
     set(TINY_RC_FLAGS_BACKUP "${ARGN}")
 
 endmacro()
+
+# Throw a fatal error for unsupported environments
+function(tiny_check_unsupported_build)
+
+    if(MINGW AND CMAKE_CXX_COMPILER_ID STREQUAL "Clang" AND NOT BUILD_SHARED_LIBS)
+        message(FATAL_ERROR "MinGW clang static build is not supported, problem with \
+inline constants :/.")
+    endif()
+
+endfunction()

cmake/Modules/TinyInitDefaultVariables.cmake

@@ -164,11 +164,15 @@ ${CMAKE_BINARY_DIR}/tests/auto/utils${TINY_PATH_SEPARATOR}$ENV{PATH}")
 
     # Specifies which global constant types will be used
     if(BUILD_SHARED_LIBS AND NOT INLINE_CONSTANTS)
-        set(TINY_EXTERN_CONSTANTS ON CACHE INTERNAL
-            "Determine whether the project will be built with extern constants")
+        set(tinyExternConstants ON)
+        message(VERBOSE "Using extern constants")
     else()
-        set(TINY_EXTERN_CONSTANTS OFF CACHE INTERNAL
-            "Determine whether the project will be built with extern constants")
+        set(tinyExternConstants OFF)
+        message(VERBOSE "Using inline constants")
     endif()
+    set(TINY_EXTERN_CONSTANTS ${tinyExternConstants} CACHE INTERNAL
+        "Determine whether ${TinyOrm_target} library will be built with extern or inline \
+constants")
+    unset(tinyExternConstants)
 
 endmacro()

include/orm/tiny/model.hpp

@@ -103,6 +103,7 @@ namespace Relations {
     // CUR enable QT_ASCII_CAST_WARNINGS silverqx
     // CUR autoconfigure qmake with qmake/TinyOrm.pri and TINY_ROOT_DIR and TINY_TINYORM_BUILDS_DIR silverqx
     // CUR rename export_global.hpp to export_common.hpp silverqx
+    // CUR RC file and manifest for tests silverqx
     /*! Base model class. */
     template<typename Derived, AllRelationsConcept ...AllRelations>
     class Model :

qmake/common.pri

@@ -1,3 +1,12 @@
+# Unsupported build types
+# ---
+win32-clang-g++: {
+    CONFIG(static, dll|shared|static|staticlib) | \
+    CONFIG(staticlib, dll|shared|static|staticlib): \
+        error( "MinGW clang static build is not supported, contains a problem with\
+                duplicit symbols, you can try to fix it :)." )
+}
+
 # Common Configuration ( also for tests )
 # ---
 

qmake/features/inline_constants.prf

@@ -1,3 +1,11 @@
+win32-clang-g++: {
+    CONFIG(shared, dll|shared|static|staticlib) | \
+    CONFIG(dll, dll|shared|static|staticlib): \
+        error( "inline constants (inline_constants CONFIG option) cause crashes with\
+                an shared library on MinGW clang, please use\
+                \"CONFIG += extern_constants\" instead." )
+}
+
 CONFIG -= extern_constants
 DEFINES -= TINYORM_EXTERN_CONSTANTS