gcc-4.2.2 build on solaris-10 failing

[Malay HALDER <malay dot halder at alcatel-lucent dot com>]

Hello maintainers,
                           I am trying to build gcc on solaris-10 i am 
using an already existing gcc-3.4.4 build on solais -8 and getting the 
below error ..please help me if you can tell the root cause of above 
problem>

gcc -c -DHAVE_CONFIG_H -g -fkeep-inline-functions -I. 
-I/users/toolsrd/ws/si_ctoolrd/gcc/production/sources/gcc-4.2.2/libiberty/../include  
-W -Wall -pedantic -Wwrite-strings -Wstrict-prototypes 
/users/toolsrd/ws/si_ctoolrd/gcc/production/sources/gcc-4.2.2/libiberty/pex-one.c 
-o pex-one.o
if [ x"`case '-g -fkeep-inline-functions -g -O2 -fno-implicit-templates' 
in *-fpic* ) echo -fpic ;; * ) echo -fPIC ;; esac`" != x ]; then \
 gcc -c -DHAVE_CONFIG_H -g -fkeep-inline-functions -I. 
-I/users/toolsrd/ws/si_ctoolrd/gcc/production/sources/gcc-4.2.2/libiberty/../include  
-W -Wall -pedantic -Wwrite-strings -Wstrict-prototypes `case '-g 
-fkeep-inline-functions -g -O2 -fno-implicit-templates' in *-fpic* ) 
echo -fpic ;; * ) echo -fPIC ;; esac` 
/users/toolsrd/ws/si_ctoolrd/gcc/production/sources/gcc-4.2.2/libiberty/pex-unix.c 
-o pic/pex-unix.o; \
else true; fi
In file included from 
/tools/openbin/gcc/3.4.4/sparc-sun-solaris8/lib/gcc/sparc-sun-solaris2.8/3.4.4/include/sys/signal.h:44,
                from /usr/include/signal.h:26,
                from 
/users/toolsrd/ws/si_ctoolrd/gcc/production/sources/gcc-4.2.2/libiberty/pex-unix.c:28:
/usr/include/sys/siginfo.h:259: error: parse error before "ctid_t"
/usr/include/sys/siginfo.h:261: error: ISO C forbids data definition 
with no type or storage class
/usr/include/sys/siginfo.h:292: error: parse error before '}' token
/usr/include/sys/siginfo.h:292: error: ISO C forbids data definition 
with no type or storage class
/usr/include/sys/siginfo.h:294: error: parse error before '}' token
/usr/include/sys/siginfo.h:294: error: ISO C forbids data definition 
with no type or storage class
/usr/include/sys/siginfo.h:390: error: parse error before "ctid_t"
/usr/include/sys/siginfo.h:392: error: ISO C forbids data definition 
with no type or storage class
/usr/include/sys/siginfo.h:398: error: conflicting types for '__fault'
/usr/include/sys/siginfo.h:267: error: previous declaration of '__fault' 
was here
/usr/include/sys/siginfo.h:404: error: conflicting types for '__file'
/usr/include/sys/siginfo.h:273: error: previous declaration of '__file' 
was here
/usr/include/sys/siginfo.h:420: error: conflicting types for '__prof'
/usr/include/sys/siginfo.h:287: error: previous declaration of '__prof' 
was here
/usr/include/sys/siginfo.h:424: error: conflicting types for '__rctl'
/usr/include/sys/siginfo.h:291: error: previous declaration of '__rctl' 
was here
/usr/include/sys/siginfo.h:426: error: parse error before '}' token
/usr/include/sys/siginfo.h:426: error: ISO C forbids data definition 
with no type or storage class
/usr/include/sys/siginfo.h:428: error: parse error before '}' token
/usr/include/sys/siginfo.h:428: error: ISO C forbids data definition 
with no type or storage class
/usr/include/sys/siginfo.h:432: error: parse error before "k_siginfo_t"
/usr/include/sys/siginfo.h:437: error: parse error before '}' token
/usr/include/sys/siginfo.h:437: error: ISO C forbids data definition 
with no type or storage class
In file included from /usr/include/signal.h:26,
                from 
/users/toolsrd/ws/si_ctoolrd/gcc/production/sources/gcc-4.2.2/libiberty/pex-unix.c:28:
/tools/openbin/gcc/3.4.4/sparc-sun-solaris8/lib/gcc/sparc-sun-solaris2.8/3.4.4/include/sys/signal.h:96: 
error: parse error before "siginfo_t"
In file included from 
/users/toolsrd/ws/si_ctoolrd/gcc/production/sources/gcc-4.2.2/libiberty/pex-unix.c:28:
/usr/include/signal.h:111: error: parse error before "siginfo_t"
/usr/include/signal.h:113: error: parse error before "siginfo_t"
/users/toolsrd/ws/si_ctoolrd/gcc/production/sources/gcc-4.2.2/libiberty/pex-unix.c: 
In function `pex_wait':
/users/toolsrd/ws/si_ctoolrd/gcc/production/sources/gcc-4.2.2/libiberty/pex-unix.c:100: 
warning: implicit declaration of function `waitpid'
/users/toolsrd/ws/si_ctoolrd/gcc/production/sources/gcc-4.2.2/libiberty/pex-unix.c:103: 
warning: implicit declaration of function `wait4'
gmake[4]: *** [pex-unix.o] Error 1



thanks & regards
Malay