Export math functions to Wasm components

src/wasm/core.cpp

@@ -450,6 +450,10 @@ extern "C" void uce_wasm_link_anchors()
 		(void*)&isdigit, (void*)&isgraph, (void*)&islower, (void*)&isprint,
 		(void*)&ispunct, (void*)&isspace, (void*)&isupper, (void*)&isxdigit,
 		(void*)&tolower, (void*)&toupper,
+		// math functions used by side modules but not otherwise retained by core
+		(void*)(double (*)(double))&cos,
+		(void*)(double (*)(double))&sin,
+		(void*)(double (*)(double))&round,
 	};
 	(void)libc_anchors;
 }

src/wasm/core_libc_exports.syms

@@ -33,3 +33,6 @@ isupper
 isxdigit
 tolower
 toupper
+cos
+sin
+round