* Package:    app-backup/cpdup-1.18
 * Repository: gentoo
 * USE:        abi_x86_64 amd64 elibc_musl kernel_linux userland_GNU
 * FEATURES:   network-sandbox preserve-libs sandbox userpriv usersandbox
>>> Unpacking source...
>>> Unpacking cpdup-1.18.tgz to /var/tmp/portage/app-backup/cpdup-1.18/work
>>> Source unpacked in /var/tmp/portage/app-backup/cpdup-1.18/work
>>> Preparing source in /var/tmp/portage/app-backup/cpdup-1.18/work/cpdup ...
 * Applying cpdup-1.11-unused.patch ...
 [ ok ]
>>> Source prepared.
>>> Configuring source in /var/tmp/portage/app-backup/cpdup-1.18/work/cpdup ...
>>> Source configured.
>>> Compiling source in /var/tmp/portage/app-backup/cpdup-1.18/work/cpdup ...
make -j1 NOPTHREADS=1 
x86_64-gentoo-linux-musl-gcc -O2 -pipe -march=native -D__cpdup_unused="__attribute__ ((unused))" -D_GNU_SOURCE -D__USE_FILE_OFFSET64 -DNOMD5 -c -o cpdup.o cpdup.c
In file included from cpdup.c:60:
hcproto.h:108:55: error: unknown type name ‘u_long’; did you mean ‘long’?
  108 | int hc_chflags(struct HostConf *hc, const char *path, u_long flags);
      |                                                       ^~~~~~
      |                                                       long
cpdup.c:130:54: error: unknown type name ‘u_long’; did you mean ‘long’?
  130 | static int xrename(const char *src, const char *dst, u_long flags);
      |                                                      ^~~~~~
      |                                                      long
cpdup.c:131:52: error: unknown type name ‘u_long’; did you mean ‘long’?
  131 | static int xlink(const char *src, const char *dst, u_long flags);
      |                                                    ^~~~~~
      |                                                    long
cpdup.c: In function ‘DoCopy’:
cpdup.c:746:17: warning: implicit declaration of function ‘xlink’; did you mean ‘link’? [-Wimplicit-function-declaration]
  746 |             if (xlink(hln->name, dpath, stat1->st_flags) < 0) {
      |                 ^~~~~
      |                 link
cpdup.c:1172:23: warning: implicit declaration of function ‘xrename’; did you mean ‘rename’? [-Wimplicit-function-declaration]
 1172 |       if (st2Valid && xrename(path, dpath, st2_flags) != 0) {
      |                       ^~~~~~~
      |                       rename
cpdup.c: At top level:
cpdup.c:1654:43: error: unknown type name ‘u_long’; did you mean ‘long’?
 1654 | xrename(const char *src, const char *dst, u_long flags __cpdup_unused)
      |                                           ^~~~~~
      |                                           long
cpdup.c:1670:41: error: unknown type name ‘u_long’; did you mean ‘long’?
 1670 | xlink(const char *src, const char *dst, u_long flags)
      |                                         ^~~~~~
      |                                         long
make: *** [Makefile:13: cpdup.o] Error 1
 * ERROR: app-backup/cpdup-1.18::gentoo failed (compile phase):
 *   emake failed
 * 
 * If you need support, post the output of `emerge --info '=app-backup/cpdup-1.18::gentoo'`,
 * the complete build log and the output of `emerge -pqv '=app-backup/cpdup-1.18::gentoo'`.
 * The complete build log is located at '/var/log/portage/app-backup:cpdup-1.18:20200403-222553.log'.
 * For convenience, a symlink to the build log is located at '/var/tmp/portage/app-backup/cpdup-1.18/temp/build.log'.
 * The ebuild environment file is located at '/var/tmp/portage/app-backup/cpdup-1.18/temp/environment'.
 * Working directory: '/var/tmp/portage/app-backup/cpdup-1.18/work/cpdup'
 * S: '/var/tmp/portage/app-backup/cpdup-1.18/work/cpdup'