Fix Android build after commit:41b6d25

modules/core/src/system.cpp

@@ -939,11 +939,11 @@ struct Mutex::Impl
 {
     Impl() { InitializeCriticalSection(&cs); refcount = 1; }
     ~Impl() { DeleteCriticalSection(&cs); }
-    
+
     void lock() { EnterCriticalSection(&cs); }
     bool trylock() { return TryEnterCriticalSection(&cs) != 0; }
     void unlock() { LeaveCriticalSection(&cs); }
-    
+
     CRITICAL_SECTION cs;
     int refcount;
 };
@@ -956,26 +956,26 @@ struct Mutex::Impl
 {
     Impl() { sl = OS_SPINLOCK_INIT; refcount = 1; }
     ~Impl() {}
-    
+
     void lock() { OSSpinLockLock(&sl); }
     bool trylock() { return OSSpinLockTry(&sl); }
     void unlock() { OSSpinLockUnlock(&sl); }
-    
+
     OSSpinLock sl;
     int refcount;
 };
 
-#elif defined __linux__
+#elif defined __linux__ && !defined ANDROID
 
 struct Mutex::Impl
 {
     Impl() { pthread_spin_init(&sl, 0); refcount = 1; }
     ~Impl() { pthread_spin_destroy(&sl); }
-    
+
     void lock() { pthread_spin_lock(&sl); }
     bool trylock() { return pthread_spin_trylock(&sl) == 0; }
     void unlock() { pthread_spin_unlock(&sl); }
-    
+
     pthread_spinlock_t sl;
     int refcount;
 };
@@ -986,11 +986,11 @@ struct Mutex::Impl
 {
     Impl() { pthread_mutex_init(&sl, 0); refcount = 1; }
     ~Impl() { pthread_mutex_destroy(&sl); }
-    
+
     void lock() { pthread_mutex_lock(&sl); }
     bool trylock() { return pthread_mutex_trylock(&sl) == 0; }
     void unlock() { pthread_mutex_unlock(&sl); }
-    
+
     pthread_mutex_t sl;
     int refcount;
 };
@@ -1001,14 +1001,14 @@ Mutex::Mutex()
 {
     impl = new Mutex::Impl;
 }
-    
+
 Mutex::~Mutex()
 {
     if( CV_XADD(&impl->refcount, -1) == 1 )
         delete impl;
     impl = 0;
 }
-    
+
 Mutex::Mutex(const Mutex& m)
 {
     impl = m.impl;
@@ -1023,10 +1023,10 @@ Mutex& Mutex::operator = (const Mutex& m)
     impl = m.impl;
     return *this;
 }
-    
+
 void Mutex::lock() { impl->lock(); }
 void Mutex::unlock() { impl->unlock(); }
-bool Mutex::trylock() { return impl->trylock(); }    
+bool Mutex::trylock() { return impl->trylock(); }
 
 }