diff --git a/include/bx/inline/hash.inl b/include/bx/inline/hash.inl
index 831e3bf..40e225b 100644
--- a/include/bx/inline/hash.inl
+++ b/include/bx/inline/hash.inl
@@ -72,6 +72,7 @@ namespace bx
 
 	inline void HashMurmur2A::begin(uint32_t _seed)
 	{
+		BX_UNUSED(m_tail);
 		m_hash  = _seed;
 		m_size  = 0;
 		m_count = 0;
@@ -95,6 +96,7 @@ namespace bx
 
 	inline void HashMurmur3::begin(uint32_t _seed)
 	{
+		BX_UNUSED(m_tail);
 		m_hash  = _seed;
 		m_size  = 0;
 		m_count = 0;
diff --git a/include/bx/platform.h b/include/bx/platform.h
index 2b47723..3a61ac4 100644
--- a/include/bx/platform.h
+++ b/include/bx/platform.h
@@ -463,6 +463,12 @@
 #	define BX_CPP_NAME "C++Unknown"
 #endif // defined(__cplusplus)
 
+#if BX_PLATFORM_OSX && BX_PLATFORM_OSX < 130000
+#error "Minimum supported macOS version is 13.00.\n"
+#elif BX_PLATFORM_IOS && BX_PLATFORM_IOS < 160000
+#error "Minimum supported macOS version is 16.00.\n"
+#endif // BX_PLATFORM_OSX < 130000
+
 #if BX_CPU_ENDIAN_BIG
 static_assert(false, "\n\n"
 	"\t** IMPORTANT! **\n\n"
diff --git a/scripts/toolchain.lua b/scripts/toolchain.lua
index b60d1ef..b2834c2 100644
--- a/scripts/toolchain.lua
+++ b/scripts/toolchain.lua
@@ -961,6 +961,7 @@ function toolchain(_buildDir, _libDir)
 			"-Wfatal-errors",
 			"-Wunused-value",
 			"-Wundef",
+			"-mmacosx-version-min=13.0",
 		}
 		includedirs { path.join(bxDir, "include/compat/osx") }
 
@@ -972,6 +973,7 @@ function toolchain(_buildDir, _libDir)
 			"-Wfatal-errors",
 			"-Wunused-value",
 			"-Wundef",
+			"-mios-version-min=16.0",
 		}
 		includedirs { path.join(bxDir, "include/compat/ios") }