crazy linker: Expand isnanf workaround to all platforms.

third_party/android_crazy_linker/src/src/crazy_linker_shared_library.cpp

Index: third_party/android_crazy_linker/src/src/crazy_linker_shared_library.cpp
diff --git a/third_party/android_crazy_linker/src/src/crazy_linker_shared_library.cpp b/third_party/android_crazy_linker/src/src/crazy_linker_shared_library.cpp
index b982a7d63cf65a9335e0919b59897e34ccfe29a9..f9abd66240b453fe808ad701de04f5e897b1bb49 100644
--- a/third_party/android_crazy_linker/src/src/crazy_linker_shared_library.cpp
+++ b/third_party/android_crazy_linker/src/src/crazy_linker_shared_library.cpp
@@ -146,7 +146,6 @@ class SharedLibraryResolver : public ElfRelocations::SymbolResolver {
   virtual void* LookupInWrap(const char* symbol_name, LibraryView* wrap) {
     if (wrap->IsSystem()) {
       void* address = ::dlsym(wrap->GetSystem(), symbol_name);
-#ifdef __arm__
       // Android libm.so defines isnanf as weak. This means that its
       // address cannot be found by dlsym(), which returns NULL for weak
       // symbols prior to Android 5.0. However, libm.so contains the real
@@ -162,7 +161,6 @@ class SharedLibraryResolver : public ElfRelocations::SymbolResolver {
           !strcmp(symbol_name, "isnanf") &&
           !strcmp(wrap->GetName(), "libm.so"))
         address = ::dlsym(wrap->GetSystem(), "__isnanf");
-#endif
       return address;
     }