what is difference between gcc-ada and GNAT????

[sameer sinha]

hi,
 can any one tell me what is the difference between gcc-ada and
differnt other compiler for Ada 95 like GNAT GPL, GNAT Pro, 
what is procedure to build only language Ada by using source code og gcc-4.1???

it'urgent please help me!!!!!!!!!!!!!!!!!!!!!!!!!!!!

[sameer sinha]

hello,
Please can any one tell me how to bulid gcc newer version for
generating
 code for i960MC processor.
is there any switch to generate coed for i960MC or i will
have to build it first
   for target i960.
   Right now i am using Linux i686.Pleasee help me.
  And also tell me whether it's possible to generate i960Mc code
for language
  Ada95 or it is only possible for language "C" ???

build Error

[sameer sinha]

i am trying to build gcc-3.4.6
for that i untar gcc-ada-3.4.6 and gcc-core-3.4.6 in directory "/source"
and my build directory is not subdirectory of source directory

i got error like this:-

gcc -c -g -O2  -gnatpg -gnata -I- -I. -Iada
-I../../source/gcc-3.4.6/gcc/ada
../../source/gcc-3.4.6/gcc/ada/ali.adb -o ada/ali.o
fatal error: system.ads is incorrectly formatted
missing line for parameter: Preallocated_Stacks
compilation abandoned
make[1]: *** [ada/ali.o] Error 1
make[1]: Leaving directory
`/home/sameer/GCC_SOURCE_CODE/GCC-ADA/GCC-3.4.6/build/gcc'
make: *** [all-gcc] Error 2