* Package:    net-misc/taptap-1.0-r1:0
 * Repository: gentoo
 * USE:        abi_x86_64 amd64 elibc_glibc kernel_linux
 * FEATURES:   network-sandbox preserve-libs sandbox userpriv usersandbox

>>> Unpacking source...
>>> Source unpacked in /var/tmp/portage/net-misc/taptap-1.0-r1/work
>>> Preparing source in /var/tmp/portage/net-misc/taptap-1.0-r1/work ...
>>> Source prepared.
 * Modern C testing: this build is using a /etc/portage/bashrc hook (2023-11-30T22:24)!
 * Modern C testing: see https://wiki.gentoo.org/wiki/Modern_C_porting for more info.
>>> Configuring source in /var/tmp/portage/net-misc/taptap-1.0-r1/work ...
>>> Source configured.
>>> Compiling source in /var/tmp/portage/net-misc/taptap-1.0-r1/work ...
 * clang -O2 -pipe -march=native -fno-diagnostics-color -Werror=implicit-function-declaration -Werror=implicit-int -Wl,-O1 -Wl,--as-needed -Wl,--defsym=__gentoo_check_ldflags__=0 -o taptap taptap-1.0.c
taptap-1.0.c:65:2: error: call to undeclared library function 'memset' with type
      'void *(void *, int, unsigned long)'; ISO C99 and later do not support
      implicit function declarations [-Wimplicit-function-declaration]
   65 |         memset(&ifr, 0, sizeof(ifr));
      |         ^
taptap-1.0.c:65:2: note: include the header <string.h> or explicitly provide a
      declaration for 'memset'
taptap-1.0.c:68:2: error: call to undeclared library function 'strncpy' with
      type 'char *(char *, const char *, unsigned long)'; ISO C99 and later do
      not support implicit function declarations
      [-Wimplicit-function-declaration]
   68 |         strncpy(ifr.ifr_name, "tun%d", IFNAMSIZ);
      |         ^
taptap-1.0.c:68:2: note: include the header <string.h> or explicitly provide a
      declaration for 'strncpy'
taptap-1.0.c:81:2: warning: ignoring return value of function declared with
      'warn_unused_result' attribute [-Wunused-result]
   81 |         daemon(0,0);
      |         ^~~~~~ ~~~
taptap-1.0.c:86:4: warning: ignoring return value of function declared with
      'warn_unused_result' attribute [-Wunused-result]
   86 |                         write(dev2,(void*)&buf,cnt);
      |                         ^~~~~ ~~~~~~~~~~~~~~~~~~~~
taptap-1.0.c:91:4: warning: ignoring return value of function declared with
      'warn_unused_result' attribute [-Wunused-result]
   91 |                         write(dev1,(void*)&buf,cnt);
      |                         ^~~~~ ~~~~~~~~~~~~~~~~~~~~
3 warnings and 2 errors generated.
 * ERROR: net-misc/taptap-1.0-r1::gentoo failed (compile phase):
 *   Failed to run command: clang -O2 -pipe -march=native -fno-diagnostics-color -Werror=implicit-function-declaration -Werror=implicit-int -Wl,-O1 -Wl,--as-needed -Wl,--defsym=__gentoo_check_ldflags__=0 -o taptap taptap-1.0.c
 * 
 * Call stack:
 *     ebuild.sh, line  136:  Called src_compile
 *   environment, line 1452:  Called edo 'clang' '-O2' '-pipe' '-march=native' '-fno-diagnostics-color' '-Werror=implicit-function-declaration' '-Werror=implicit-int' '-Wl,-O1' '-Wl,--as-needed' '-Wl,--defsym=__gentoo_check_ldflags__=0' '-o' 'taptap' 'taptap-1.0.c'
 *   environment, line  654:  Called die
 * The specific snippet of code:
 *       "$@" || die -n "Failed to run command: $@"
 * 
 * If you need support, post the output of `emerge --info '=net-misc/taptap-1.0-r1::gentoo'`,
 * the complete build log and the output of `emerge -pqv '=net-misc/taptap-1.0-r1::gentoo'`.
 * The complete build log is located at '/var/log/portage/net-misc:taptap-1.0-r1:20231202-185705.log'.
 * For convenience, a symlink to the build log is located at '/var/tmp/portage/net-misc/taptap-1.0-r1/temp/build.log'.
 * The ebuild environment file is located at '/var/tmp/portage/net-misc/taptap-1.0-r1/temp/environment'.
 * Working directory: '/var/tmp/portage/net-misc/taptap-1.0-r1/work'
 * S: '/var/tmp/portage/net-misc/taptap-1.0-r1/work'