Update external libraries.

extras/dr_flac.h

 /*
 FLAC audio decoder. Choice of public domain or MIT-0. See license statements at the end of this file.
-dr_flac - v0.12.12 - 2020-04-30
+dr_flac - v0.12.13 - 2020-05-16
 
 David Reid - mackron@gmail.com
 
@@ -227,6 +227,14 @@ Notes
 extern "C" {
 #endif
 
+#define DRFLAC_STRINGIFY(x)      #x
+#define DRFLAC_XSTRINGIFY(x)     DRFLAC_STRINGIFY(x)
+
+#define DRFLAC_VERSION_MAJOR     0
+#define DRFLAC_VERSION_MINOR     12
+#define DRFLAC_VERSION_REVISION  13
+#define DRFLAC_VERSION_STRING    DRFLAC_XSTRINGIFY(DRFLAC_VERSION_MAJOR) "." DRFLAC_XSTRINGIFY(DRFLAC_VERSION_MINOR) "." DRFLAC_XSTRINGIFY(DRFLAC_VERSION_REVISION)
+
 #include <stddef.h> /* For size_t. */
 
 /* Sized types. Prefer built-in types. Fall back to stdint. */
@@ -308,6 +316,9 @@ typedef drflac_uint32        drflac_bool32;
     #define DRFLAC_DEPRECATED
 #endif
 
+DRFLAC_API void drflac_version(drflac_uint32* pMajor, drflac_uint32* pMinor, drflac_uint32* pRevision);
+DRFLAC_API const char* drflac_version_string();
+
 /*
 As data is read from the client it is placed into an internal buffer for fast access. This controls the size of that buffer. Larger values means more speed,
 but also more memory. In my testing there is diminishing returns after about 4KB, but you can fiddle with this to suit your own needs. Must be a multiple of 8.
@@ -1645,6 +1656,27 @@ typedef drflac_int32 drflac_result;
 #define drflac_align(x, a)                              ((((x) + (a) - 1) / (a)) * (a))
 
 
+DRFLAC_API void drflac_version(drflac_uint32* pMajor, drflac_uint32* pMinor, drflac_uint32* pRevision)
+{
+    if (pMajor) {
+        *pMajor = DRFLAC_VERSION_MAJOR;
+    }
+
+    if (pMinor) {
+        *pMinor = DRFLAC_VERSION_MINOR;
+    }
+
+    if (pRevision) {
+        *pRevision = DRFLAC_VERSION_REVISION;
+    }
+}
+
+DRFLAC_API const char* drflac_version_string()
+{
+    return DRFLAC_VERSION_STRING;
+}
+
+
 /* CPU caps. */
 #if defined(__has_feature)
     #if __has_feature(thread_sanitizer)
@@ -11705,6 +11737,15 @@ DRFLAC_API drflac_bool32 drflac_next_cuesheet_track(drflac_cuesheet_track_iterat
 /*
 REVISION HISTORY
 ================
+v0.12.13 - 2020-05-16
+  - Add compile-time and run-time version querying.
+    - DRFLAC_VERSION_MINOR
+    - DRFLAC_VERSION_MAJOR
+    - DRFLAC_VERSION_REVISION
+    - DRFLAC_VERSION_STRING
+    - drflac_version()
+    - drflac_version_string()
+
 v0.12.12 - 2020-04-30
   - Fix compilation errors with VC6.
 

extras/dr_mp3.h

 /*
 MP3 audio decoder. Choice of public domain or MIT-0. See license statements at the end of this file.
-dr_mp3 - v0.6.9 - 2020-04-30
+dr_mp3 - v0.6.10 - 2020-05-16
 
 David Reid - mackron@gmail.com
 
@@ -90,6 +90,14 @@ Build Options
 extern "C" {
 #endif
 
+#define DRMP3_STRINGIFY(x)      #x
+#define DRMP3_XSTRINGIFY(x)     DRMP3_STRINGIFY(x)
+
+#define DRMP3_VERSION_MAJOR     0
+#define DRMP3_VERSION_MINOR     6
+#define DRMP3_VERSION_REVISION  10
+#define DRMP3_VERSION_STRING    DRMP3_XSTRINGIFY(DRMP3_VERSION_MAJOR) "." DRMP3_XSTRINGIFY(DRMP3_VERSION_MINOR) "." DRMP3_XSTRINGIFY(DRMP3_VERSION_REVISION)
+
 #include <stddef.h> /* For size_t. */
 
 /* Sized types. Prefer built-in types. Fall back to stdint. */
@@ -236,6 +244,11 @@ typedef drmp3_int32 drmp3_result;
     #define DRMP3_INLINE
 #endif
 
+
+DRMP3_API void drmp3_version(drmp3_uint32* pMajor, drmp3_uint32* pMinor, drmp3_uint32* pRevision);
+DRMP3_API const char* drmp3_version_string();
+
+
 /*
 Low Level Push API
 ==================
@@ -514,6 +527,26 @@ DRMP3_API void drmp3_free(void* p, const drmp3_allocation_callbacks* pAllocation
 #include <string.h>
 #include <limits.h> /* For INT_MAX */
 
+DRMP3_API void drmp3_version(drmp3_uint32* pMajor, drmp3_uint32* pMinor, drmp3_uint32* pRevision)
+{
+    if (pMajor) {
+        *pMajor = DRMP3_VERSION_MAJOR;
+    }
+
+    if (pMinor) {
+        *pMinor = DRMP3_VERSION_MINOR;
+    }
+
+    if (pRevision) {
+        *pRevision = DRMP3_VERSION_REVISION;
+    }
+}
+
+DRMP3_API const char* drmp3_version_string()
+{
+    return DRMP3_VERSION_STRING;
+}
+
 /* Disable SIMD when compiling with TCC for now. */
 #if defined(__TINYC__)
 #define DR_MP3_NO_SIMD
@@ -4390,6 +4423,15 @@ counts rather than sample counts.
 /*
 REVISION HISTORY
 ================
+v0.6.10 - 2020-05-16
+  - Add compile-time and run-time version querying.
+    - DRMP3_VERSION_MINOR
+    - DRMP3_VERSION_MAJOR
+    - DRMP3_VERSION_REVISION
+    - DRMP3_VERSION_STRING
+    - drmp3_version()
+    - drmp3_version_string()
+
 v0.6.9 - 2020-04-30
   - Change the `pcm` parameter of drmp3dec_decode_frame() to a `const drmp3_uint8*` for consistency with internal APIs.
 

extras/dr_wav.h

 /*
 WAV audio loader and writer. Choice of public domain or MIT-0. See license statements at the end of this file.
-dr_wav - v0.12.3 - 2020-04-30
+dr_wav - v0.12.4 - 2020-05-16
 
 David Reid - mackron@gmail.com
 
@@ -139,6 +139,14 @@ Notes
 extern "C" {
 #endif
 
+#define DRWAV_STRINGIFY(x)      #x
+#define DRWAV_XSTRINGIFY(x)     DRWAV_STRINGIFY(x)
+
+#define DRWAV_VERSION_MAJOR     0
+#define DRWAV_VERSION_MINOR     12
+#define DRWAV_VERSION_REVISION  4
+#define DRWAV_VERSION_STRING    DRWAV_XSTRINGIFY(DRWAV_VERSION_MAJOR) "." DRWAV_XSTRINGIFY(DRWAV_VERSION_MINOR) "." DRWAV_XSTRINGIFY(DRWAV_VERSION_REVISION)
+
 #include <stddef.h> /* For size_t. */
 
 /* Sized types. Prefer built-in types. Fall back to stdint. */
@@ -279,6 +287,9 @@ typedef drwav_int32 drwav_result;
 /* Flags to pass into drwav_init_ex(), etc. */
 #define DRWAV_SEQUENTIAL            0x00000001
 
+DRWAV_API void drwav_version(drwav_uint32* pMajor, drwav_uint32* pMinor, drwav_uint32* pRevision);
+DRWAV_API const char* drwav_version_string();
+
 typedef enum
 {
     drwav_seek_origin_start,
@@ -1037,6 +1048,26 @@ DRWAV_API drwav_bool32 drwav_fourcc_equal(const drwav_uint8* a, const char* b);
     #endif
 #endif
 
+DRWAV_API void drwav_version(drwav_uint32* pMajor, drwav_uint32* pMinor, drwav_uint32* pRevision)
+{
+    if (pMajor) {
+        *pMajor = DRWAV_VERSION_MAJOR;
+    }
+
+    if (pMinor) {
+        *pMinor = DRWAV_VERSION_MINOR;
+    }
+
+    if (pRevision) {
+        *pRevision = DRWAV_VERSION_REVISION;
+    }
+}
+
+DRWAV_API const char* drwav_version_string()
+{
+    return DRWAV_VERSION_STRING;
+}
+
 /*
 These limits are used for basic validation when initializing the decoder. If you exceed these limits, first of all: what on Earth are
 you doing?! (Let me know, I'd be curious!) Second, you can adjust these by #define-ing them before the dr_wav implementation.
@@ -3469,7 +3500,7 @@ DRWAV_API drwav_bool32 drwav_seek_to_pcm_frame(drwav* pWav, drwav_uint64 targetF
                 } else if (pWav->translatedFormatTag == DR_WAVE_FORMAT_DVI_ADPCM) {
                     framesRead = drwav_read_pcm_frames_s16__ima(pWav, framesToRead, devnull);
                 } else {
-                    assert(DRWAV_FALSE);    /* If this assertion is triggered it means I've implemented a new compressed format but forgot to add a branch for it here. */
+                    DRWAV_ASSERT(DRWAV_FALSE);  /* If this assertion is triggered it means I've implemented a new compressed format but forgot to add a branch for it here. */
                 }
 
                 if (framesRead != framesToRead) {
@@ -5753,6 +5784,16 @@ two different ways to initialize a drwav object.
 /*
 REVISION HISTORY
 ================
+v0.12.4 - 2020-05-16
+  - Replace assert() with DRWAV_ASSERT().
+  - Add compile-time and run-time version querying.
+    - DRWAV_VERSION_MINOR
+    - DRWAV_VERSION_MAJOR
+    - DRWAV_VERSION_REVISION
+    - DRWAV_VERSION_STRING
+    - drwav_version()
+    - drwav_version_string()
+
 v0.12.3 - 2020-04-30
   - Fix compilation errors with VC6.