Use llabs (rather than std::abs) for compatibility with MSVC

MSVC doesn't offer an override which accepts int64_t (at least, the 32-bit compiler doesn't)

diff --git a/libs/backends/portaudio/portaudio_backend.cc b/libs/backends/portaudio/portaudio_backend.cc
index 65012243167400febc132d7a8f402e010f603903..4031368cf73134711ddb0fe6ba5fc2df77ac7bdd 100644 (file)
--- a/libs/backends/portaudio/portaudio_backend.cc
+++ b/libs/backends/portaudio/portaudio_backend.cc
@@ -1421,9 +1421,9 @@ PortAudioBackend::main_process_thread ()
 
                        uint64_t cycle_diff_us = (m_cycle_timer.get_start () - m_last_cycle_start);
                        int64_t deviation_us = (cycle_diff_us - m_cycle_timer.get_length_us());
-                       m_total_deviation_us += std::abs(deviation_us);
+                       m_total_deviation_us += ::llabs(deviation_us);
                        m_max_deviation_us =
-                           std::max (m_max_deviation_us, (uint64_t)std::abs (deviation_us));
+                               std::max (m_max_deviation_us, (uint64_t)::llabs (deviation_us));
 
                        if ((m_cycle_count % 1000) == 0) {
                                uint64_t mean_deviation_us = m_total_deviation_us / m_cycle_count;
@@ -1433,7 +1433,7 @@ PortAudioBackend::main_process_thread ()
                                                    m_max_deviation_us * 1e-3));
                        }
 
-                       if (std::abs(deviation_us) > m_cycle_timer.get_length_us()) {
+                       if (::llabs(deviation_us) > m_cycle_timer.get_length_us()) {
                                DEBUG_TIMING (string_compose (
                                    "time between process(ms): %1, Est(ms): %2, Dev(ms): %3\n",
                                    cycle_diff_us * 1e-3,