Allow passing compile-time configuration options through CMake

src/catch2/catch_config.hpp

@@ -9,6 +9,7 @@
 #define CATCH_CONFIG_HPP_INCLUDED
 
 #include <catch2/catch_test_spec.hpp>
+#include <catch2/catch_user_config.hpp>
 #include <catch2/interfaces/catch_interfaces_config.hpp>
 #include <catch2/internal/catch_unique_ptr.hpp>
 #include <catch2/internal/catch_optional.hpp>

src/catch2/catch_user_config.hpp.in

@@ -0,0 +1,201 @@
+
+//              Copyright Catch2 Authors
+// Distributed under the Boost Software License, Version 1.0.
+//   (See accompanying file LICENSE_1_0.txt or copy at
+//        https://www.boost.org/LICENSE_1_0.txt)
+
+// SPDX-License-Identifier: BSL-1.0
+
+/**\file
+ * **AUTOGENERATED FROM CMAKE CONFIGURATION**
+ *
+ * Contains materialized compile-time configuration provided to Catch2's
+ * CMake configuration. All compile-time configuration options need to
+ * be here, and also documented in `docs/configuration.md`.
+ */
+
+#ifndef CATCH_USER_CONFIG_HPP_INCLUDED
+#define CATCH_USER_CONFIG_HPP_INCLUDED
+
+
+// ------
+// Overridable compilation flags,
+// these can have 3 "states": Force Yes, Force No, Use Default.
+// Setting both Force Yes and Force No is an error
+// ------
+
+#cmakedefine CATCH_CONFIG_ANDROID_LOGWRITE
+#cmakedefine CATCH_CONFIG_NO_ANDROID_LOGWRITE
+
+#if defined( CATCH_CONFIG_ANDROID_LOGWRITE ) && \
+    defined( CATCH_CONFIG_NO_ANDROID_LOGWRITE )
+#    error Cannot force ANDROID_LOGWRITE to both ON and OFF
+#endif
+
+
+
+#cmakedefine CATCH_CONFIG_COUNTER
+#cmakedefine CATCH_CONFIG_NO_COUNTER
+
+#if defined( CATCH_CONFIG_COUNTER ) && \
+    defined( CATCH_CONFIG_NO_COUNTER )
+#    error Cannot force COUNTER to both ON and OFF
+#endif
+
+
+
+#cmakedefine CATCH_CONFIG_CPP11_TO_STRING
+#cmakedefine CATCH_CONFIG_NO_CPP11_TO_STRING
+
+#if defined( CATCH_CONFIG_CPP11_TO_STRING ) && \
+    defined( CATCH_CONFIG_NO_CPP11_TO_STRING )
+#    error Cannot force CPP11_TO_STRING to both ON and OFF
+#endif
+
+
+
+#cmakedefine CATCH_CONFIG_CPP17_BYTE
+#cmakedefine CATCH_CONFIG_NO_CPP17_BYTE
+
+#if defined( CATCH_CONFIG_CPP17_BYTE ) && \
+    defined( CATCH_CONFIG_NO_CPP17_BYTE )
+#    error Cannot force CPP17_BYTE to both ON and OFF
+#endif
+
+
+
+#cmakedefine CATCH_CONFIG_CPP17_OPTIONAL
+#cmakedefine CATCH_CONFIG_NO_CPP17_OPTIONAL
+
+#if defined( CATCH_CONFIG_CPP17_OPTIONAL ) && \
+    defined( CATCH_CONFIG_NO_CPP17_OPTIONAL )
+#    error Cannot force CPP17_OPTIONAL to both ON and OFF
+#endif
+
+
+
+#cmakedefine CATCH_CONFIG_CPP17_STRING_VIEW
+#cmakedefine CATCH_CONFIG_NO_CPP17_STRING_VIEW
+
+#if defined( CATCH_CONFIG_CPP17_STRING_VIEW ) && \
+    defined( CATCH_CONFIG_NO_CPP17_STRING_VIEW )
+#    error Cannot force CPP17_STRING_VIEW to both ON and OFF
+#endif
+
+
+
+#cmakedefine CATCH_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS
+#cmakedefine CATCH_CONFIG_NO_CPP17_UNCAUGHT_EXCEPTIONS
+
+#if defined( CATCH_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS ) && \
+    defined( CATCH_CONFIG_NO_CPP17_UNCAUGHT_EXCEPTIONS )
+#    error Cannot force CPP17_UNCAUGHT_EXCEPTIONS to both ON and OFF
+#endif
+
+
+
+#cmakedefine CATCH_CONFIG_CPP17_VARIANT
+#cmakedefine CATCH_CONFIG_NO_CPP17_VARIANT
+
+#if defined( CATCH_CONFIG_CPP17_VARIANT ) && \
+    defined( CATCH_CONFIG_NO_CPP17_VARIANT )
+#    error Cannot force CPP17_VARIANT to both ON and OFF
+#endif
+
+
+
+#cmakedefine CATCH_CONFIG_GLOBAL_NEXTAFTER
+#cmakedefine CATCH_CONFIG_NO_GLOBAL_NEXTAFTER
+
+#if defined( CATCH_CONFIG_GLOBAL_NEXTAFTER ) && \
+    defined( CATCH_CONFIG_NO_GLOBAL_NEXTAFTER )
+#    error Cannot force GLOBAL_NEXTAFTER to both ON and OFF
+#endif
+
+
+
+#cmakedefine CATCH_CONFIG_POSIX_SIGNALS
+#cmakedefine CATCH_CONFIG_NO_POSIX_SIGNALS
+
+#if defined( CATCH_CONFIG_POSIX_SIGNALS ) && \
+    defined( CATCH_CONFIG_NO_POSIX_SIGNALS )
+#    error Cannot force POSIX_SIGNALS to both ON and OFF
+#endif
+
+
+
+#cmakedefine CATCH_CONFIG_USE_ASYNC
+#cmakedefine CATCH_CONFIG_NO_USE_ASYNC
+
+#if defined( CATCH_CONFIG_USE_ASYNC ) && \
+    defined( CATCH_CONFIG_NO_USE_ASYNC )
+#    error Cannot force USE_ASYNC to both ON and OFF
+#endif
+
+
+
+#cmakedefine CATCH_CONFIG_WCHAR
+#cmakedefine CATCH_CONFIG_NO_WCHAR
+
+#if defined( CATCH_CONFIG_WCHAR ) && \
+    defined( CATCH_CONFIG_NO_WCHAR )
+#    error Cannot force WCHAR to both ON and OFF
+#endif
+
+
+
+#cmakedefine CATCH_CONFIG_WINDOWS_SEH
+#cmakedefine CATCH_CONFIG_NO_WINDOWS_SEH
+
+#if defined( CATCH_CONFIG_WINDOWS_SEH ) && \
+    defined( CATCH_CONFIG_NO_WINDOWS_SEH )
+#    error Cannot force WINDOWS_SEH to both ON and OFF
+#endif
+
+
+// ------
+// Simple toggle defines
+// their value is never used and they cannot be overriden
+// ------
+
+
+#cmakedefine CATCH_CONFIG_COLOUR_ANSI
+#cmakedefine CATCH_CONFIG_COLOUR_NONE
+#cmakedefine CATCH_CONFIG_COLOUR_WINDOWS
+#cmakedefine CATCH_CONFIG_DISABLE_EXCEPTIONS
+#cmakedefine CATCH_CONFIG_DISABLE_EXCEPTIONS_CUSTOM_HANDLER
+#cmakedefine CATCH_CONFIG_DISABLE
+#cmakedefine CATCH_CONFIG_DISABLE_STRINGIFICATION
+#cmakedefine CATCH_CONFIG_ENABLE_ALL_STRINGMAKERS
+#cmakedefine CATCH_CONFIG_ENABLE_OPTIONAL_STRINGMAKER
+#cmakedefine CATCH_CONFIG_ENABLE_PAIR_STRINGMAKER
+#cmakedefine CATCH_CONFIG_ENABLE_TUPLE_STRINGMAKER
+#cmakedefine CATCH_CONFIG_ENABLE_VARIANT_STRINGMAKER
+#cmakedefine CATCH_CONFIG_EXPERIMENTAL_REDIRECT
+#cmakedefine CATCH_CONFIG_FAST_COMPILE
+#cmakedefine CATCH_CONFIG_NOSTDOUT
+#cmakedefine CATCH_CONFIG_PREFIX_ALL
+#cmakedefine CATCH_CONFIG_WINDOWS_CRTDBG
+
+// ------
+// "Variable" defines, these have actual values
+// ------
+
+#define CATCH_CONFIG_DEFAULT_REPORTER "@CATCH_CONFIG_DEFAULT_REPORTER@"
+#define CATCH_CONFIG_CONSOLE_WIDTH @CATCH_CONFIG_CONSOLE_WIDTH@
+
+// The logic here depends on CMake preprocessing of the file significantly.
+// If CMake has CATCH_CONFIG_FALLBACK_STRINGIFIER it will be define below,
+// and its value is written into the if. Thus, we undef the old placeholder
+// and then define the macro to the actual CMake-provided value.
+//
+// We can't do it without this indirection, because it is a string-variable
+// macro, so we need it's value, and there is no usable default value that
+// would let us have it always defined the way the other two are.
+#cmakedefine CATCH_CONFIG_FALLBACK_STRINGIFIER
+#if defined( CATCH_CONFIG_FALLBACK_STRINGIFIER )
+#    undef CATCH_CONFIG_FALLBACK_STRINGIFIER
+#    define CATCH_CONFIG_FALLBACK_STRINGIFIER @CATCH_CONFIG_FALLBACK_STRINGIFIER@
+#endif
+
+#endif // CATCH_USER_CONFIG_HPP_INCLUDED

src/catch2/internal/catch_compiler_capabilities.hpp

@@ -287,7 +287,9 @@
 #  define CATCH_CONFIG_NEW_CAPTURE
 #endif
 
-#if !defined(CATCH_INTERNAL_CONFIG_EXCEPTIONS_ENABLED) && !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
+#if !defined( CATCH_INTERNAL_CONFIG_EXCEPTIONS_ENABLED ) && \
+    !defined( CATCH_CONFIG_DISABLE_EXCEPTIONS ) &&          \
+    !defined( CATCH_CONFIG_NO_DISABLE_EXCEPTIONS )
 #  define CATCH_CONFIG_DISABLE_EXCEPTIONS
 #endif
 

src/catch2/internal/catch_config_android_logwrite.hpp

@@ -17,6 +17,8 @@
 #ifndef CATCH_CONFIG_ANDROID_LOGWRITE_HPP_INCLUDED
 #define CATCH_CONFIG_ANDROID_LOGWRITE_HPP_INCLUDED
 
+#include <catch2/catch_user_config.hpp>
+
 #if defined(__ANDROID__)
 #    define CATCH_INTERNAL_CONFIG_ANDROID_LOGWRITE
 #endif