<div dir="ltr"><div>I have seen this in two of my Slackware 14.2 systems, whereas in two others the latest qt5-webkit builds fine. What is particularly puzzling is the complaint about undefined phtreads-related symbols, when all of my 14.2 system have the pthread library installed.</div><div><br></div><div>Anybody come across this?</div><div><br></div>-- Found GStreamer: GSTREAMER_INCLUDE_DIRS;GSTREAMER_LIBRARIES;GSTREAMER_VERSION;GSTREAMER_BASE_INCLUDE_DIRS;GSTREAMER_BASE_LIBRARIES;GSTREAMER_APP_INCLUDE_DIRS;GSTREAMER_APP_LIBRARIES;GSTREAMER_PBUTILS_INCLUDE_DIRS;GSTREAMER_PBUTILS_LIBRARIES;GSTREAMER_VIDEO_INCLUDE_DIRS;GSTREAMER_VIDEO_LIBRARIES;GSTREAMER_MPEGTS_INCLUDE_DIRS;GSTREAMER_MPEGTS_LIBRARIES;GSTREAMER_TAG_INCLUDE_DIRS;GSTREAMER_TAG_LIBRARIES;GSTREAMER_GL_INCLUDE_DIRS;GSTREAMER_GL_LIBRARIES;GSTREAMER_AUDIO_INCLUDE_DIRS;GSTREAMER_AUDIO_LIBRARIES;GSTREAMER_FFT_INCLUDE_DIRS;GSTREAMER_FFT_LIBRARIES (Required is at least version "1.0.3") <br>CMake Error at /usr/share/cmake-3.5/Modules/FindPackageHandleStandardArgs.cmake:148 (message):<br>  Could NOT find Hyphen (missing: HYPHEN_INCLUDE_DIR HYPHEN_LIBRARIES)<br>Call Stack (most recent call first):<br>  /usr/share/cmake-3.5/Modules/FindPackageHandleStandardArgs.cmake:388 (_FPHSA_FAILURE_MESSAGE)<br>  Source/cmake/FindHyphen.cmake:37 (find_package_handle_standard_args)<br>  Source/cmake/OptionsQt.cmake:842 (find_package)<br>  Source/cmake/WebKitCommon.cmake:51 (include)<br>  CMakeLists.txt:137 (include)<br><br><br>-- Configuring incomplete, errors occurred!<br>See also "/tmp/SBo/qtwebkit-5.212.0-alpha4/build/CMakeFiles/CMakeOutput.log".<br>See also "/tmp/SBo/qtwebkit-5.212.0-alpha4/build/CMakeFiles/CMakeError.log".<br><div><br></div><div>In CMakeError.log I have the following:</div><div><br></div><div>Run Build Command:"/usr/bin/gmake" "cmTC_4f2cb/fast"<br>/usr/bin/gmake -f CMakeFiles/cmTC_4f2cb.dir/build.make CMakeFiles/cmTC_4f2cb.dir<br>/build<br>gmake[1]: Entering directory '/tmp/SBo/qtwebkit-5.212.0-alpha4/build/CMakeFiles/<br>CMakeTmp'<br>Building C object CMakeFiles/cmTC_4f2cb.dir/CheckSymbolExists.c.o<br>/usr/bin/cc    -O2 -fPIC  -fno-exceptions -fno-strict-aliasing    -o CMakeFiles/<br>cmTC_4f2cb.dir/CheckSymbolExists.c.o   -c /tmp/SBo/qtwebkit-5.212.0-alpha4/build<br>/CMakeFiles/CMakeTmp/CheckSymbolExists.c<br>Linking C executable cmTC_4f2cb<br>/usr/bin/cmake -E cmake_link_script CMakeFiles/cmTC_4f2cb.dir/link.txt --verbose<br>=1<br>/usr/bin/cc  -O2 -fPIC  -fno-exceptions -fno-strict-aliasing     CMakeFiles/cmTC<br>_4f2cb.dir/CheckSymbolExists.c.o  -o cmTC_4f2cb -rdynamic <br>CMakeFiles/cmTC_4f2cb.dir/CheckSymbolExists.c.o: In function `main':<br>CheckSymbolExists.c:(.text.startup+0x3): undefined reference to `pthread_create'<br>collect2: error: ld returned 1 exit status<br>CMakeFiles/cmTC_4f2cb.dir/build.make:97: recipe for target 'cmTC_4f2cb' failed<br>gmake[1]: *** [cmTC_4f2cb] Error 1<br>gmake[1]: Leaving directory '/tmp/SBo/qtwebkit-5.212.0-alpha4/build/CMakeFiles/C<br>MakeTmp'<br>Makefile:126: recipe for target 'cmTC_4f2cb/fast' failed<br>gmake: *** [cmTC_4f2cb/fast] Error 2<br><br>File /tmp/SBo/qtwebkit-5.212.0-alpha4/build/CMakeFiles/CMakeTmp/CheckSymbolExist<br>s.c:<br>/* */<br>#include <pthread.h><br><br>int main(int argc, char** argv)<br>{<br>  (void)argv;<br>#ifndef pthread_create<br>  return ((int*)(&pthread_create))[argc];<br>#else<br>  (void)argc;<br>  return 0;<br>#endif<br>}<br><br>Determining if the function pthread_create exists in the pthreads failed with th<br>e following output:<br>Change Dir: /tmp/SBo/qtwebkit-5.212.0-alpha4/build/CMakeFiles/CMakeTmp<br></div></div>