Fix the Wave Writer's reliance on ftell

So output can work on FIFOs

1 files changed, 3 insertions, 2 deletions

diff --git a/Alc/wave.c b/Alc/wave.c
index 3de7ea80..e08b0bc1 100644
--- a/Alc/wave.c
+++ b/Alc/wave.c
@@ -203,8 +203,7 @@ static ALCboolean wave_open_playback(ALCdevice *device, const ALCchar *deviceNam
     fputc(0, data->f);
     fputc(0, data->f);
 
-    data->DataStart = ftell(data->f);
-    if(data->DataStart == -1 || ferror(data->f))
+    if(ferror(data->f))
     {
         AL_PRINT("Error writing header: %s\n", strerror(errno));
         fclose(data->f);
@@ -212,6 +211,8 @@ static ALCboolean wave_open_playback(ALCdevice *device, const ALCchar *deviceNam
         return ALC_FALSE;
     }
 
+    data->DataStart = ftell(data->f);
+
     device->MaxNoOfSources = 256;
     device->UpdateFreq = max(device->UpdateFreq, 2048);