removing old libraries and binaries
gcc -m32 -c -I/home/user1/inferno/Plan9/386/include -I/home/user1/inferno/include -I/home/user1/inferno/utils/include regaux.c regcomp.c regerror.c regexec.c regsub.c rregexec.c rregsub.c
In file included from /home/user1/inferno/Plan9/386/include/../../include/lib9.h:1,
                 from /home/user1/inferno/Plan9/386/include/lib9.h:1,
                 from regaux.c:1:
/home/user1/inferno/Plan9/386/include/u.h:1:10: fatal error: /386/include/u.h: Нет такого файла или каталога
 #include "/386/include/u.h"
          ^~~~~~~~~~~~~~~~~~
compilation terminated.
In file included from /home/user1/inferno/Plan9/386/include/../../include/lib9.h:1,
                 from /home/user1/inferno/Plan9/386/include/lib9.h:1,
                 from regcomp.c:1:
/home/user1/inferno/Plan9/386/include/u.h:1:10: fatal error: /386/include/u.h: Нет такого файла или каталога
 #include "/386/include/u.h"
          ^~~~~~~~~~~~~~~~~~
compilation terminated.
In file included from /home/user1/inferno/Plan9/386/include/../../include/lib9.h:1,
                 from /home/user1/inferno/Plan9/386/include/lib9.h:1,
                 from regerror.c:1:
/home/user1/inferno/Plan9/386/include/u.h:1:10: fatal error: /386/include/u.h: Нет такого файла или каталога
 #include "/386/include/u.h"
          ^~~~~~~~~~~~~~~~~~
compilation terminated.
In file included from /home/user1/inferno/Plan9/386/include/../../include/lib9.h:1,
                 from /home/user1/inferno/Plan9/386/include/lib9.h:1,
                 from regexec.c:1:
/home/user1/inferno/Plan9/386/include/u.h:1:10: fatal error: /386/include/u.h: Нет такого файла или каталога
 #include "/386/include/u.h"
          ^~~~~~~~~~~~~~~~~~
compilation terminated.
In file included from /home/user1/inferno/Plan9/386/include/../../include/lib9.h:1,
                 from /home/user1/inferno/Plan9/386/include/lib9.h:1,
                 from regsub.c:1:
/home/user1/inferno/Plan9/386/include/u.h:1:10: fatal error: /386/include/u.h: Нет такого файла или каталога
 #include "/386/include/u.h"
          ^~~~~~~~~~~~~~~~~~
compilation terminated.
In file included from /home/user1/inferno/Plan9/386/include/../../include/lib9.h:1,
                 from /home/user1/inferno/Plan9/386/include/lib9.h:1,
                 from rregexec.c:1:
/home/user1/inferno/Plan9/386/include/u.h:1:10: fatal error: /386/include/u.h: Нет такого файла или каталога
 #include "/386/include/u.h"
          ^~~~~~~~~~~~~~~~~~
compilation terminated.
In file included from /home/user1/inferno/Plan9/386/include/../../include/lib9.h:1,
                 from /home/user1/inferno/Plan9/386/include/lib9.h:1,
                 from rregsub.c:1:
/home/user1/inferno/Plan9/386/include/u.h:1:10: fatal error: /386/include/u.h: Нет такого файла или каталога
 #include "/386/include/u.h"
          ^~~~~~~~~~~~~~~~~~
compilation terminated.
libregexp compilation failed