test: add linker flag with pthread for pcm-multi-thread stress test

This test program is a pthread application, while Makefile has no flags
for linker about pthread library. This can cause below error.

$ make pcm-multi-thread
  CCLD     pcm-multi-thread
/usr/bin/ld: pcm-multi-thread.o: undefined reference to symbol 'pthread_cancel@@GLIBC_2.2.5'
//lib/x86_64-linux-gnu/libpthread.so.0: error adding symbols: DSO missing from command line
collect2: error: ld returned 1 exit status
Makefile:523: recipe for target 'pcm-multi-thread' failed
make: *** [pcm-multi-thread] Error 1

This commit fixes the bug by adding a corresponding flag.

Fixes: 147093ac5b8d('test: Add pcm-multi-thread program')
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/test/Makefile.am b/test/Makefile.am
index 970595ae432ffea742bcf3009a89b9661b8db353..5f35159af2d64c12e5d394cff884765808d38e5b 100644 (file)
--- a/test/Makefile.am
+++ b/test/Makefile.am
@@ -24,7 +24,7 @@ code_CFLAGS=-Wall -pipe -g -O2
 chmap_LDADD=../src/libasound.la
 audio_time_LDADD=../src/libasound.la
 pcm_multi_thread_LDADD=../src/libasound.la
-
+pcm_multi_thread_LDFLAGS=-lpthread
 user_ctl_element_set_LDADD=../src/libasound.la
 user_ctl_element_set_CFLAGS=-Wall -g