Math: use CORRADE_TARGET_EMSCRIPTEN instead of MAGNUM_TARGET_WEBGL.

When WebGPU is here, what would we gonna do?

src/Magnum/Math/Test/PackingTest.cpp

@@ -96,7 +96,7 @@ void PackingTest::unpackUnsigned() {
     CORRADE_COMPARE((Math::unpack<Double, UnsignedInt>(0)), 0.0);
     CORRADE_COMPARE((Math::unpack<Double, UnsignedInt>(std::numeric_limits<UnsignedInt>::max())), 1.0);
 
-    #ifndef MAGNUM_TARGET_WEBGL
+    #ifndef CORRADE_TARGET_EMSCRIPTEN
     CORRADE_COMPARE((Math::unpack<long double, UnsignedLong>(0)), 0.0);
     CORRADE_COMPARE((Math::unpack<long double, UnsignedLong>(std::numeric_limits<UnsignedLong>::max())), 1.0);
     #endif
@@ -133,7 +133,7 @@ void PackingTest::unpackSigned() {
     CORRADE_COMPARE((Math::unpack<Double, Int>(0)), 0.0);
     CORRADE_COMPARE((Math::unpack<Double, Int>(std::numeric_limits<Int>::max())), 1.0);
 
-    #ifndef MAGNUM_TARGET_WEBGL
+    #ifndef CORRADE_TARGET_EMSCRIPTEN
     CORRADE_COMPARE((Math::unpack<long double, Long>(std::numeric_limits<Long>::min())), -1.0);
     CORRADE_COMPARE((Math::unpack<long double, Long>(0)), 0.0);
     CORRADE_COMPARE((Math::unpack<long double, Long>(std::numeric_limits<Long>::max())), 1.0);
@@ -170,7 +170,7 @@ void PackingTest::packUnsigned() {
     CORRADE_COMPARE(Math::pack<UnsignedInt>(0.0), 0);
     CORRADE_COMPARE(Math::pack<UnsignedInt>(1.0), std::numeric_limits<UnsignedInt>::max());
 
-    #ifndef MAGNUM_TARGET_WEBGL
+    #ifndef CORRADE_TARGET_EMSCRIPTEN
     CORRADE_COMPARE(Math::pack<UnsignedLong>(0.0l), 0);
     {
         #ifdef _MSC_VER
@@ -245,7 +245,7 @@ void PackingTest::reunpackUnsigned() {
     CORRADE_COMPARE(Math::unpack<Double>(Math::pack<UnsignedInt>(0.0)), 0.0);
     CORRADE_COMPARE(Math::unpack<Double>(Math::pack<UnsignedInt>(1.0)), 1.0);
 
-    #ifndef MAGNUM_TARGET_WEBGL
+    #ifndef CORRADE_TARGET_EMSCRIPTEN
     CORRADE_COMPARE(Math::unpack<long double>(Math::pack<UnsignedLong>(0.0l)), 0.0l);
     {
         #ifdef _MSC_VER
@@ -269,7 +269,7 @@ void PackingTest::reunpackSigned() {
     CORRADE_COMPARE(Math::unpack<Double>(Math::pack<Int>(0.0)), 0.0);
     CORRADE_COMPARE(Math::unpack<Double>(Math::pack<Int>(1.0)), 1.0);
 
-    #ifndef MAGNUM_TARGET_WEBGL
+    #ifndef CORRADE_TARGET_EMSCRIPTEN
     CORRADE_COMPARE(Math::unpack<long double>(Math::pack<Long>(-1.0l)), -1.0l);
     CORRADE_COMPARE(Math::unpack<long double>(Math::pack<Long>(0.0l)), 0.0l);
     {

src/Magnum/Math/TypeTraits.h

@@ -166,7 +166,7 @@ namespace Implementation {
     _c(Short)
     _c(UnsignedInt)
     _c(Int)
-    #ifndef MAGNUM_TARGET_WEBGL
+    #ifndef CORRADE_TARGET_EMSCRIPTEN
     _c(UnsignedLong)
     _c(Long)
     #endif
@@ -200,7 +200,7 @@ template<> struct TypeTraits<UnsignedInt>: Implementation::TypeTraitsIntegral<Un
 template<> struct TypeTraits<Int>: Implementation::TypeTraitsIntegral<Int> {
     typedef Double FloatingPointType;
 };
-#ifndef MAGNUM_TARGET_WEBGL
+#ifndef CORRADE_TARGET_EMSCRIPTEN
 template<> struct TypeTraits<UnsignedLong>: Implementation::TypeTraitsIntegral<UnsignedLong> {
     typedef long double FloatingPointType;
 };