05-30-2011, 04:44 PM

Hi, I'm trying to compile some programs which need g++-2.95.
I've downloaded the source for gcc-2.95 (which includes g++-2.95, I think).

I don't know what the host option should be for configuring it.
Any ideas? (I'm using Snow Leopard, Mac OS X 10.6.7, Kernel Version: Darwin 10.7.3)

Thanks!!

What I tried so far ...

1. I can't configure it with just
   

   .\configure
   Config.guess failed to determine the host type.  You need to specify one.
   ...

   since it failed to recognize my host.
2. So now I'm trying

   ./configure --host=x86_64-apple-darwin10 --target=i686-apple-darwin10
   
   Invalid configuration `x86_64-apple-darwin10': machine `x86_64-apple' not recognized
   Invalid configuration `x86_64-apple-darwin10': machine `x86_64-apple' not recognized
   Unrecognized host system name x86_64-apple-darwin10.

   . I got those values from my already installed gcc-4.2.1
   

   gcc -v
   
   Using built-in specs.
   Target: i686-apple-darwin10
   Configured with: /var/tmp/gcc/gcc-5664~38/src/configure --disable-checking --enable-werror 
   --prefix=/usr --mandir=/share/man --enable-languages=c,objc,c++,obj-c++ 
   --program-transform-name=/^[cg][^.-]*$/s/$/-4.2/ 
   --with-slibdir=/usr/lib --build=i686-apple-darwin10 
   --program-prefix=i686-apple-darwin10- --host=x86_64-apple-darwin10 
   --target=i686-apple-darwin10 --with-gxx-include-dir=/include/c++/4.2.1
   Thread model: posix
   gcc version 4.2.1 (Apple Inc. build 5664)

3. Also I found that in my gcc source- gcc-2.95/config, there's a set of files with names that sound like host values (mh-solaris, mt-linux, but nothing that looks like i686-apple-darwin10 etc).
   

05-30-2011, 04:52 PM

Darwin 10 probably doesn't work because Darwin 10 was released 8 years after GCC 2.95.3. Any particular reason you need such an old version of GCC?

05-30-2011, 05:02 PM

Thanks for your quick reply!

The software I'm compiling needs "C++ compiler g++-2.95 o g++-2.96." When I try using the default g++ (4.2), it gives a bunch of errors.

Now I'm wondering- are there any options I could use for g++ (like -ansi) that might help?

make
/usr/bin/g++ -c  relax.cc -I/usr/local/leda-4.2/incl -Wall


In file included from relax.cc:1:
estruc.hh:21: error: ISO C++ forbids declaration of ‘istream’ with no type
estruc.hh:21: error: ‘istream’ is neither function nor member function; cannot be declared friend
estruc.hh:21: error: expected ‘;’ before ‘&’ token
estruc.hh:22: error: ISO C++ forbids declaration of ‘ostream’ with no type
estruc.hh:22: error: ‘ostream’ is neither function nor member function; cannot be declared friend
...

05-30-2011, 08:56 PM

You don't need G++ 2.95 for this..you probably need to fix the code you are compiling..

You most likely need to add

using namespace std;

in your header file that'll make all of it work..or start prefixing all of the things in the 'std' namesake with 'std::'..like..'std::istream', 'std:stream' and so on..

05-31-2011, 06:59 PM

Thanks, I'll just tweak the code so it compiles with what I have.