Bug: https://bugs.gentoo.org/608294
PR: https://github.com/FirebirdSQL/firebird/pull/104

--- a/src/common/classes/alloc.h
+++ b/src/common/classes/alloc.h
@@ -498,10 +498,14 @@ using Firebird::MemoryPool;

 inline static MemoryPool* getDefaultMemoryPool() { return Firebird::MemoryPool::processMemoryPool; }

+#if (( ! __GNUC__ ) || ( __GNUC__ < 6 ))
+
 // Global versions of operators new and delete
 void* operator new(size_t s) THROW_BAD_ALLOC;
 void* operator new[](size_t s) THROW_BAD_ALLOC;

+#endif
+
 void operator delete(void* mem) throw();
 void operator delete[](void* mem) throw();

--- a/src/dudley/exe.epp
+++ b/src/dudley/exe.epp
@@ -2884,9 +2884,9 @@ static USHORT get_prot_mask( const TEXT * relation, TEXT * field)
 		blr_parameter, 0, 0, 0,
 		blr_parameter, 0, 1, 0,
 		blr_parameter, 1, 0, 0,
-		blr_end,
-		blr_end,
-		blr_end,
+		static_cast<SCHAR>(blr_end),
+		static_cast<SCHAR>(blr_end),
+		static_cast<SCHAR>(blr_end),
 		blr_eoc
 	};
 	static FB_API_HANDLE req_handle;