Math: long double is the same as double also on Android.

src/Magnum/Math/Test/TypeTraitsTest.cpp

@@ -70,21 +70,21 @@ struct {
     long double getStep(long double) const { return cStep; }
 } EqualsZeroData[EqualsZeroDataCount] = {
     {"", -3.141592653589793f, 5.0e-5f, -3.141592653589793, 5.0e-14, -3.141592653589793l,
-        #ifndef _MSC_VER
+        #if !defined(_MSC_VER) && !defined(CORRADE_TARGET_ANDROID)
         5.0e-17l
         #else
         5.0e-14
         #endif
     },
     {"small", 1.0e-6f, 5.0e-6f, -1.0e-15, 5.0e-15, 1.0e-18l,
-        #ifndef _MSC_VER
+        #if !defined(_MSC_VER) && !defined(CORRADE_TARGET_ANDROID)
         5.0e-18l
         #else
         5.0e-15
         #endif
     },
     {"large", 12345.0f, 0.2f, 12345678901234.0, 0.2,
-        #ifndef _MSC_VER
+        #if !defined(_MSC_VER) && !defined(CORRADE_TARGET_ANDROID)
         -12345678901234567.0l,
         #else
         -12345678901234.0l,
@@ -154,9 +154,9 @@ void TypeTraitsTest::sizeOfLongDouble() {
     #ifdef CORRADE_TARGET_EMSCRIPTEN
     CORRADE_SKIP("Not defined in Emscripten.");
     #else
-    #ifdef _MSC_VER
+    #if defined(_MSC_VER) || defined(CORRADE_TARGET_ANDROID)
     CORRADE_COMPARE(sizeof(long double), 8);
-    CORRADE_EXPECT_FAIL("long double is equivalent to double on MSVC.");
+    CORRADE_EXPECT_FAIL("long double is equivalent to double on MSVC and Android.");
     #endif
 
     /* It's 80 bit, but has to be aligned somehow, so 128 bits / 16 bytes */

src/Magnum/Math/TypeTraits.h

@@ -59,12 +59,13 @@ for more headroom.
 They have "at least" 18 significant digits of precision, taking one digit less
 for more headroom.
 
-@attention On MSVC the precision is the same as for doubles, because
+@attention On MSVC the precision is the same as for doubles, because they are
-    they are internally the same type. Source:
+    internally the same type (source: https://msdn.microsoft.com/en-us/library/9cx8xs15.aspx).
-    https://msdn.microsoft.com/en-us/library/9cx8xs15.aspx
+    The same is apparently for @ref CORRADE_TARGET_ANDROID "Android", but I
+    couldn't find any source for that.
 */
 #ifndef LONG_DOUBLE_EQUALITY_PRECISION
-#ifndef _MSC_VER
+#if !defined(_MSC_VER) && !defined(CORRADE_TARGET_ANDROID)
 #define LONG_DOUBLE_EQUALITY_PRECISION 1.0e-17l
 #else
 #define LONG_DOUBLE_EQUALITY_PRECISION 1.0e-14l