* Package:    media-sound/substract_wave-0.3-r1
 * Repository: gentoo
 * Maintainer: sound@gentoo.org
 * USE:        abi_x86_64 amd64 elibc_musl kernel_linux userland_GNU
 * FEATURES:   network-sandbox preserve-libs sandbox userpriv usersandbox

>>> Unpacking source...
>>> Unpacking substract_wave-0.3.tgz to /var/tmp/portage/media-sound/substract_wave-0.3-r1/work
>>> Source unpacked in /var/tmp/portage/media-sound/substract_wave-0.3-r1/work
>>> Preparing source in /var/tmp/portage/media-sound/substract_wave-0.3-r1/work/substract_wave-0.3 ...
 * Applying substract_wave-0.3-Makefile.patch ...
 [ ok ]
 * Applying substract_wave-0.3-overflow.patch ...
 [ ok ]
>>> Source prepared.
>>> Configuring source in /var/tmp/portage/media-sound/substract_wave-0.3-r1/work/substract_wave-0.3 ...
>>> Source configured.
>>> Compiling source in /var/tmp/portage/media-sound/substract_wave-0.3-r1/work/substract_wave-0.3 ...
make -j4 
x86_64-gentoo-linux-musl-gcc -pipe -march=native -fno-diagnostics-color -O2 -Wall -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE -c substract_wave.c
In file included from substract_wave.h:14,
                 from substract_wave.c:17:
/usr/include/sys/poll.h:1:2: warning: #warning redirecting incorrect #include <sys/poll.h> to <poll.h> [-Wcpp]
    1 | #warning redirecting incorrect #include <sys/poll.h> to <poll.h>
      |  ^~~~~~~
substract_wave.c: In function 'main':
substract_wave.c:99:1: error: unknown type name 'fd_set'
   99 | fd_set readfs;
      | ^~~~~~
substract_wave.c:100:16: error: storage size of 'timeout' isn't known
  100 | struct timeval timeout;
      |                ^~~~~~~
substract_wave.c:542:5: warning: pointer targets in assignment from 'char *' to 'unsigned char *' differ in signedness [-Wpointer-sign]
  542 | ptr = (char *)out_header;
      |     ^
substract_wave.c:644:17: warning: implicit declaration of function 'FD_ZERO'; did you mean 'FP_ZERO'? [-Wimplicit-function-declaration]
  644 |                 FD_ZERO(&readfs);
      |                 ^~~~~~~
      |                 FP_ZERO
substract_wave.c:645:17: warning: implicit declaration of function 'FD_SET'; did you mean 'L_SET'? [-Wimplicit-function-declaration]
  645 |                 FD_SET(fileno(stdin), &readfs);
      |                 ^~~~~~
      |                 L_SET
substract_wave.c:648:21: warning: implicit declaration of function 'select' [-Wimplicit-function-declaration]
  648 |                 b = select(FD_SETSIZE, &readfs, NULL, NULL, &timeout);
      |                     ^~~~~~
substract_wave.c:648:28: error: 'FD_SETSIZE' undeclared (first use in this function); did you mean 'F_SETSIG'?
  648 |                 b = select(FD_SETSIZE, &readfs, NULL, NULL, &timeout);
      |                            ^~~~~~~~~~
      |                            F_SETSIG
substract_wave.c:648:28: note: each undeclared identifier is reported only once for each function it appears in
substract_wave.c:656:21: warning: implicit declaration of function 'FD_ISSET' [-Wimplicit-function-declaration]
  656 |                 if( FD_ISSET(fileno(stdin), &readfs) )
      |                     ^~~~~~~~
substract_wave.c:660:25: warning: implicit declaration of function 'FD_CLR' [-Wimplicit-function-declaration]
  660 |                         FD_CLR(fileno(stdin), &readfs);
      |                         ^~~~~~
substract_wave.c:100:16: warning: unused variable 'timeout' [-Wunused-variable]
  100 | struct timeval timeout;
      |                ^~~~~~~
substract_wave.c:89:15: warning: variable 'pfd' set but not used [-Wunused-but-set-variable]
   89 | struct pollfd pfd[1];
      |               ^~~
substract_wave.c:87:5: warning: variable 'keep_main_reference' set but not used [-Wunused-but-set-variable]
   87 | int keep_main_reference;
      |     ^~~~~~~~~~~~~~~~~~~
make: *** [Makefile:6: substract_wave.o] Error 1
 * ERROR: media-sound/substract_wave-0.3-r1::gentoo failed (compile phase):
 *   emake failed
 * 
 * If you need support, post the output of `emerge --info '=media-sound/substract_wave-0.3-r1::gentoo'`,
 * the complete build log and the output of `emerge -pqv '=media-sound/substract_wave-0.3-r1::gentoo'`.
 * The complete build log is located at '/var/log/portage/media-sound:substract_wave-0.3-r1:20211219-064536.log'.
 * For convenience, a symlink to the build log is located at '/var/tmp/portage/media-sound/substract_wave-0.3-r1/temp/build.log'.
 * The ebuild environment file is located at '/var/tmp/portage/media-sound/substract_wave-0.3-r1/temp/environment'.
 * Working directory: '/var/tmp/portage/media-sound/substract_wave-0.3-r1/work/substract_wave-0.3'
 * S: '/var/tmp/portage/media-sound/substract_wave-0.3-r1/work/substract_wave-0.3'