[PATCH] Fix building against the system portaudio library

Building against the system portaudio results in this error:

./src/AudioIO.cpp:983: undefined reference to `PaUtil_GetTime'
audacity-AudioIO.o: In function `audacityAudioCallback(void const*, void*,
unsigned long, PaStreamCallbackTimeInfo const*, unsigned long, void*)':
./src/AudioIO.cpp:4630: undefined reference to `PaUtil_GetTime'
collect2: error: ld returned 1 exit status
Makefile:2349: recipe for target 'audacity' failed
make[3]: *** [audacity] Error 1

This is because PaUtil_GetTime is declared as a C symbol in pa_util.h
but is resolved as a C++ symbol at link time.

Audacity fixes this in the local tree with this change:
https://github.com/audacity/audacity/commit/38fd97b8e26060332ab3e9e000a8882326a70ba7

However this is not general enough for the portaudio debian package.

Since PaUtil_GetTime() is the only function causing problems, just copy
over the code where it's used.

[Sebastian Ramacher]: Call clock_gettime directly.

Gbp-Pq: Name 0002-PATCH-Fix-building-against-the-system-portaudio-libr.patch

diff --git a/src/AudioIO.cpp b/src/AudioIO.cpp
index 0187e39623b80520f23edd712b5f87e78cdbfd7f..bfb0848bd53588a98fdd2383f867f3954ce4f46e 100644 (file)
--- a/src/AudioIO.cpp
+++ b/src/AudioIO.cpp
@@ -491,8 +491,16 @@ time warp info and AudioIOListener and whether the playback is looped.
    #define ROUND(x) (int) ((x)+0.5)
    //#include <string.h>
 //   #include "../lib-src/portmidi/pm_common/portmidi.h"
-   #include "../lib-src/portaudio-v19/src/common/pa_util.h"
    #include "NoteTrack.h"
+#include <time.h>
+
+PaTime PaUtil_GetTime( void )
+{
+    struct timespec tp;
+    clock_gettime(CLOCK_REALTIME, &tp);
+    return (PaTime)(tp.tv_sec + tp.tv_nsec * 1e-9);
+}
+
 #endif
 
 #ifdef EXPERIMENTAL_AUTOMATED_INPUT_LEVEL_ADJUSTMENT