configure.ac:19: installing './compile'
configure.ac:24: installing './config.guess'
configure.ac:24: installing './config.sub'
configure.ac:22: installing './install-sh'
configure.ac:22: installing './missing'
Makefile.am: installing './depcomp'
source_subfolder/src/opusfile.c: In function ‘op_find_initial_pcm_offset’:
source_subfolder/src/opusfile.c:936:25: warning: ‘diff’ may be used uninitialized in this function [-Wmaybe-uninitialized]
       diff=durations[pi]-diff;
            ~~~~~~~~~~~~~^~~~~
source_subfolder/src/opusfile.c: In function ‘op_pcm_total’:
source_subfolder/src/opusfile.c:1756:19: warning: ‘diff’ may be used uninitialized in this function [-Wmaybe-uninitialized]
   return pcm_total+diff-links[_li].head.pre_skip;
          ~~~~~~~~~^~~~~
source_subfolder/src/opusfile.c: In function ‘op_pcm_seek’:
source_subfolder/src/opusfile.c:2518:13: warning: ‘diff’ may be used uninitialized in this function [-Wmaybe-uninitialized]
           if(diff>48000)break;
             ^
source_subfolder/src/opusfile.c:2270:22: note: ‘diff’ was declared here
   ogg_int64_t        diff;
                      ^~~~
source_subfolder/src/opusfile.c:1019:17: warning: ‘diff2’ may be used uninitialized in this function [-Wmaybe-uninitialized]
     if(_x>=_from>>1){
            ~~~~~^~~
source_subfolder/src/opusfile.c:2408:21: note: ‘diff2’ was declared here
         ogg_int64_t diff2;
                     ^~~~~
source_subfolder/src/opusfile.c:734:30: warning: ‘prev_page_gp’ may be used uninitialized in this function [-Wmaybe-uninitialized]
   return (_gp_a>_gp_b)-(_gp_b>_gp_a);
                        ~~~~~~^~~~~~~
source_subfolder/src/opusfile.c:2354:25: note: ‘prev_page_gp’ was declared here
             ogg_int64_t prev_page_gp;
                         ^~~~~~~~~~~~
source_subfolder/src/opusfile.c:729:7: warning: ‘pcm_pre_skip’ may be used uninitialized in this function [-Wmaybe-uninitialized]
     if(_gp_b>=0)return 1;
       ^
source_subfolder/src/opusfile.c:2266:22: note: ‘pcm_pre_skip’ was declared here
   ogg_int64_t        pcm_pre_skip;
                      ^~~~~~~~~~~~
source_subfolder/src/opusfile.c:2209:11: warning: ‘duration’ may be used uninitialized in this function [-Wmaybe-uninitialized]
   duration-=pre_skip;
           ^~
source_subfolder/src/opusfile.c:2187:22: note: ‘duration’ was declared here
   ogg_int64_t        duration;
                      ^~~~~~~~
ar: `u' modifier ignored since `D' is the default (see `U')
ar: `u' modifier ignored since `D' is the default (see `U')
CMake Warning:
  Manually-specified variables were not used by the project:

    CMAKE_EXPORT_NO_PACKAGE_REGISTRY