* Package:    x11-misc/xmountains-2.9-r1
 * Repository: gentoo
 * Maintainer: desktop-misc@gentoo.org
 * USE:        abi_x86_64 amd64 elibc_glibc kernel_linux userland_GNU
 * FEATURES:   network-sandbox preserve-libs sandbox userpriv usersandbox
>>> Unpacking source...
>>> Unpacking xmountains_2.9.tar.gz to /var/tmp/portage/x11-misc/xmountains-2.9-r1/work
>>> Source unpacked in /var/tmp/portage/x11-misc/xmountains-2.9-r1/work
>>> Preparing source in /var/tmp/portage/x11-misc/xmountains-2.9-r1/work ...
>>> Source prepared.
>>> Configuring source in /var/tmp/portage/x11-misc/xmountains-2.9-r1/work ...
>>> Source configured.
>>> Compiling source in /var/tmp/portage/x11-misc/xmountains-2.9-r1/work ...
make -j1 -f Makefile.alt CC=x86_64-pc-linux-gnu-gcc 'CFLAGS=-O2 -pipe -march=native -fno-common' 'LDFLAGS=-Wl,-O1 -Wl,--as-needed' xmountains 
x86_64-pc-linux-gnu-gcc -O2 -pipe -march=native -fno-common   -c -o calcalt.o calcalt.c
x86_64-pc-linux-gnu-gcc -O2 -pipe -march=native -fno-common   -c -o random.o random.c
x86_64-pc-linux-gnu-gcc -O2 -pipe -march=native -fno-common   -c -o artist.o artist.c
x86_64-pc-linux-gnu-gcc -O2 -pipe -march=native -fno-common   -c -o xmountains.o xmountains.c
xmountains.c:147:1: warning: return type defaults to ‘int’ [-Wimplicit-int]
  147 | main (argc,argv)
      | ^~~~
x86_64-pc-linux-gnu-gcc -O2 -pipe -march=native -fno-common   -c -o X_graphics.o X_graphics.c
x86_64-pc-linux-gnu-gcc -O2 -pipe -march=native -fno-common   -c -o print_alg.o print_alg.c
x86_64-pc-linux-gnu-gcc -Wl,-O1 -Wl,--as-needed -o xmountains calcalt.o random.o  artist.o  xmountains.o X_graphics.o print_alg.o -lX11 -lm
/usr/lib/gcc/x86_64-pc-linux-gnu/9.2.0/../../../../x86_64-pc-linux-gnu/bin/ld: X_graphics.o:(.bss+0xc0): multiple definition of `display'; xmountains.o:(.bss+0x10): first defined here
collect2: error: ld returned 1 exit status
make: *** [Makefile.alt:16: xmountains] Error 1
 * ERROR: x11-misc/xmountains-2.9-r1::gentoo failed (compile phase):
 *   emake failed
 * 
 * If you need support, post the output of `emerge --info '=x11-misc/xmountains-2.9-r1::gentoo'`,
 * the complete build log and the output of `emerge -pqv '=x11-misc/xmountains-2.9-r1::gentoo'`.
 * The complete build log is located at '/var/log/portage/x11-misc:xmountains-2.9-r1:20200127-002520.log'.
 * For convenience, a symlink to the build log is located at '/var/tmp/portage/x11-misc/xmountains-2.9-r1/temp/build.log'.
 * The ebuild environment file is located at '/var/tmp/portage/x11-misc/xmountains-2.9-r1/temp/environment'.
 * Working directory: '/var/tmp/portage/x11-misc/xmountains-2.9-r1/work'
 * S: '/var/tmp/portage/x11-misc/xmountains-2.9-r1/work'