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Downloaded from here:
https://sourceforge.net/p/audacity/mailman/message/36106562/
>From 5f9482a191359f2c477763a36d2c865c5f186602 Mon Sep 17 00:00:00 2001
From: Antonio Ospite <ao2@ao2.it>
Date: Tue, 7 Nov 2017 13:06:33 +0100
Subject: [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.
---
src/AudioIO.cpp | 17 ++++++++++++++++-
1 file changed, 16 insertions(+), 1 deletion(-)
diff --git a/src/AudioIO.cpp b/src/AudioIO.cpp
index a78bd1cab..d5481838d 100644
--- a/src/AudioIO.cpp
+++ b/src/AudioIO.cpp
@@ -452,8 +452,23 @@ writing audio.
#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"
+
+PaTime PaUtil_GetTime( void )
+{
+#ifdef HAVE_MACH_ABSOLUTE_TIME
+ return mach_absolute_time() * machSecondsConversionScaler_;
+#elif defined(HAVE_CLOCK_GETTIME)
+ struct timespec tp;
+ clock_gettime(CLOCK_REALTIME, &tp);
+ return (PaTime)(tp.tv_sec + tp.tv_nsec * 1e-9);
+#else
+ struct timeval tv;
+ gettimeofday( &tv, NULL );
+ return (PaTime) tv.tv_usec * 1e-6 + tv.tv_sec;
+#endif
+}
+
#endif
#ifdef EXPERIMENTAL_AUTOMATED_INPUT_LEVEL_ADJUSTMENT
--
2.15.0
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