🚀 go-pugleaf

I had a problem  on install gnu compiler 2.5.2 on my system .

 problem : Multiple syntax error on {egrep} executing make ....

SYSTEM: 
        PC 486 whith unix interactive V.3.0 Release 3.2 an XFreex86. 

DESCRIPTION:
            (install an run on root )
  
1)  Install product on hard disk on /usr/gcc : cat gcc.2.5.2.tar.z | gunzip | tar xvf - 
     ( option p in this tar is not available )  result  OK

2)  start:  configure --target=i486-isc3 --prefix=/usr/gcc --local-prefix=/usr --exec-prefix=/usr/gcc
    Result   OK           

3)  start : make  (Imakefile correctely created recently)
           compil ok , Create: cc1, cccp, ccp, xgcc, c++, protoize (apparently ok )

4)  last correct positionon install procedure 
           Building Fixed header in /usr/gcc/include
           All directory ok
           Fixing directory /usr/include into /usr/gcc/include
           Cheking header files
           egrep syntax error
           ..... ( many egrep error )
           .
           continuing apparently  ok to the end .

- the directory bin  in gcc is not created .
- The directory man in gcc is not installed....
I d'ont understand error grep? the syntax error of grep in Makefile appears correct 

What do you think that?                            

   Many thanks from sunny Pyrennes an Mediterannee sea. 
 
        Henri IRLA.