小白求问 编译错误怎么解决

[SagitPixel]

sxplugin.c:121:21: error: 'user' undeclared (first use in this function)
121 | strcpy(saveuser,user);
| ^~~~
sxplugin.c:121:21: note: each undeclared identifier is reported only once for each function it appears in
sxplugin.c:122:20: error: 'passwd' undeclared (first use in this function)
122 | strcpy(savepwd,passwd);
| ^~~~~~
sxplugin.c:125:5: error: 'pap_check_hook' undeclared (first use in this function)
125 | pap_check_hook=check;
| ^~~~~~~~~~~~~~
sxplugin.c:126:5: error: 'chap_check_hook' undeclared (first use in this function)
126 | chap_check_hook=check;
| ^~~~~~~~~~~~~~~
make[4]: *** [Makefile:13: chongqing_sxplugin] Error 1
make[4]: Leaving directory '/home/sagit/immortalwrt/build_dir/target-mipsel_24kc_musl/netkeeper'
make[3]: *** [Makefile:44: /home/sagit/immortalwrt/build_dir/target-mipsel_24kc_musl/netkeeper/.built] Error 2
make[3]: Leaving directory '/home/sagit/immortalwrt/feeds/netkeeper/netkeeper'
time: package/feeds/netkeeper/netkeeper/compile#0.10#0.00#0.14
ERROR: package/feeds/netkeeper/netkeeper failed to build.
make[2]: *** [package/Makefile:185: package/feeds/netkeeper/netkeeper/compile] Error 1
make[2]: Leaving directory '/home/sagit/immortalwrt'
make[1]: *** [package/Makefile:179: /home/sagit/immortalwrt/staging_dir/target-mipsel_24kc_musl/stamp/.package_compile] Error 2
make[1]: Leaving directory '/home/sagit/immortalwrt'
make: *** [/home/sagit/immortalwrt/include/toplevel.mk:233: world] Error 2