Bug 157258

Something is broken with either your libasound includes or the cmake cache. If those lines above are the only errors then it apparently finds a very old ALSA header.

My alsa is the newest 1.0.16

my cmake directive is:
cmake -DCMAKE_INSTALL_PREFIX=/opt/kde4 -DASOUND_LIBRARY=/opt/alsa/lib/libasound.so -DALSA_INCLUDES=/opt/alsa/include -DLIBXML2_LIBRARIES=/usr/lib/libxml2.so -DJPEG_INCLUDE_DIR=/opt/image/include -DJPEG_LIBRARY=/opt/image/lib/libjpeg.so -DGIF_INCLUDE_DIR=/opt/image/include -DGIF_LIBRARIES=/opt/image/lib/libungif.so -DPNG_PNG_INCLUDE_DIR=/opt/image/include -DPNG_LIBRARY=/opt/image/lib/libpng.so -DOPENEXR_INCLUDE_DIR=/opt/image/include -DOPENEXR_ILMTHREAD_LIBRARY=/opt/image/lib/libIlmThread.so -DCMAKE_CXX_FLAGS="-I/opt/alsa/include -I/opt/image/include" ../kdelibs

-- Looking for snd_seq_create_simple_port in asound
-- Looking for snd_seq_create_simple_port in asound - not found
-- ALSA not found
......
-- Looking for C++ include sys/asoundlib.h
-- Looking for C++ include sys/asoundlib.h - found
-- Looking for C++ include alsa/asoundlib.h
-- Looking for C++ include alsa/asoundlib.h - found
-- Looking for snd_pcm_resume in asound
-- Looking for snd_pcm_resume in asound - not found
......
-- This installation will have the extra features provided by these packages.
+ BZip2
+ OpenSSL
+ Libintl
+ OpenGL
+ Soprano
+ PCRE
+ ALSA
+ OpenEXR
-----------------------------------------------------------------------------

In CMakeFiles/CMakeError.log:
Determining if the function snd_pcm_resume exists in the asound failed with the following output:
/usr/bin/gmake -f CMakeFiles/cmTryCompileExec.dir/build.make CMakeFiles/cmTryCompileExec.dir/build
gmake[1]: Entering directory `/usr/src/KDE/4/build/CMakeFiles/CMakeTmp'
/usr/bin/cmake -E cmake_progress_report /usr/src/KDE/4/build/CMakeFiles/CMakeTmp/CMakeFiles 1
Building C object CMakeFiles/cmTryCompileExec.dir/CheckFunctionExists.o
/usr/bin/gcc  -Wno-long-long -std=iso9899:1990 -Wundef -Wcast-align -Werror-implicit-function-declaration -Wchar-subscripts -Wall -W -Wpointer-arith -Wwrite-strings -Wformat-security -Wmissing-format-attribute -fno-common  -DCHECK_FUNCTION_EXISTS=snd_pcm_resume   -D_XOPEN_SOURCE=500 -D_BSD_SOURCE -D_GNU_SOURCE -o CMakeFiles/cmTryCompileExec.dir/CheckFunctionExists.o   -c /usr/share/cmake-2.4/Modules/CheckFunctionExists.c
Linking C executable cmTryCompileExec
/usr/bin/cmake -P CMakeFiles/cmTryCompileExec.dir/cmake_clean_target.cmake
/usr/bin/gcc     -Wno-long-long -std=iso9899:1990 -Wundef -Wcast-align -Werror-implicit-function-declaration -Wchar-subscripts -Wall -W -Wpointer-arith -Wwrite-strings -Wformat-security -Wmissing-format-attribute -fno-common  -DCHECK_FUNCTION_EXISTS=snd_pcm_resume  -fPIC "CMakeFiles/cmTryCompileExec.dir/CheckFunctionExists.o"   -o cmTryCompileExec -rdynamic -L/opt/alsa/lib/libasound.so -lasound -Wl,-rpath,/opt/alsa/lib/libasound.so
/usr/lib/gcc/i686-pc-linux-gnu/4.2.3/../../../../i686-pc-linux-gnu/bin/ld: cannot find -lasound
collect2: ld returned 1 exit status
gmake[1]: *** [cmTryCompileExec] Error 1
gmake[1]: Leaving directory `/usr/src/KDE/4/build/CMakeFiles/CMakeTmp'
gmake: *** [cmTryCompileExec/fast] Error 2

It is because -L/opt/alsa/lib/libasound.so, which is bad. Is there any cmake directive to set LDFLAGS in kdelibs? - CMAKE_LIBRARY_PATH does not work neither CMAKE_SHARED_LINKER_FLAGS does.

In /opt/alsa/include/alsa/control.h is declared:
int snd_device_name_hint(int card, const char *iface, void ***hints);

In kdelibs/phonon/libkaudiodevicelist/audiodeviceenumerator.cpp:
if (snd_device_name_hint(-1, "pcm", &hints) < 0) {

Sorry I don't know how to help with your setup. And I don't have time to find out.

SVN commit 793381 by mkretz:

patch by pusling to fix finding libasound, I wonder why it never broke for me

BUG: 157258


 M  +7 -2      FindAlsa.cmake  


WebSVN link: http://websvn.kde.org/?view=rev&revision=793381