Re: Fixing the state of C++ in Cygwin

[Angelo Graziosi <Angelo dot Graziosi at roma1 dot infn dot it>]

Doyle Rhynard wrote:

> Did you have much trouble building gcc-3.4.4-1? I have been trying off
> and on for several weeks to get it to build with no
> errors. Interestingly, the --enable-fully-dynamic-string is set by
> default in the build script.

I have followed these steps:


___________________________________________
cd /tmp
mkdir src
cd src/

cd /tmp/src/
wget -N
ftp://mirrors.kernel.org/sources.redhat.com/cygwin/release/gcc/gcc-g++/gcc-g++-3.4.4-1-src.tar.bz2
wget -N
ftp://mirrors.kernel.org/sources.redhat.com/cygwin/release/gcc/gcc-g77/gcc-g77-3.4.4-1-src.tar.bz2
wget -N
ftp://mirrors.kernel.org/sources.redhat.com/cygwin/release/gcc/gcc-core/gcc-core-3.4.4-1-src.tar.bz2
wget -N
ftp://mirrors.kernel.org/sources.redhat.com/cygwin/release/gcc/gcc-ada/gcc-ada-3.4.4-1-src.tar.bz2
wget -N
ftp://mirrors.kernel.org/sources.redhat.com/cygwin/release/gcc/gcc-gdc/gcc-gdc-3.4.4-1-src.tar.bz2
wget -N
ftp://mirrors.kernel.org/sources.redhat.com/cygwin/release/gcc/gcc-objc/gcc-objc-3.4.4-1-src.tar.bz2
wget -N
ftp://mirrors.kernel.org/sources.redhat.com/cygwin/release/gcc/gcc-java/gcc-java-3.4.4-1-src.tar.bz2
wget -N
ftp://mirrors.kernel.org/sources.redhat.com/cygwin/release/gcc/gcc-testsuite/gcc-testsuite-3.4.4-1-src.tar.bz2

tar -xjvf gcc-core-3.4.4-1-src.tar.bz2
tar -xjvf gcc-g++-3.4.4-1-src.tar.bz2
tar -xjvf gcc-g77-3.4.4-1-src.tar.bz2
tar -xjvf gcc-objc-3.4.4-1-src.tar.bz2
tar -xjvf gcc-java-3.4.4-1-src.tar.bz2
tar -xjvf gcc-gdc-3.4.4-1-src.tar.bz2
tar -xjvf gcc-ada-3.4.4-1-src.tar.bz2
tar -xjvf gcc-testsuite-3.4.4-1-src.tar.bz2

Removing:       &&  in gcc-3.4.4-1.sh
Commented out   mountpwd && \
Added           --enable-fully-dynamic-string \  in  conf section

./gcc-3.4.4-1.sh prep
./gcc-3.4.4-1.sh conf
./gcc-3.4.4-1.sh build
./gcc-3.4.4-1.sh build_gnatlib_and_tools
./gcc-3.4.4-1.sh build_info
./gcc-3.4.4-1.sh build_proto
./gcc-3.4.4-1.sh install
./gcc-3.4.4-1.sh strip_exe
./gcc-3.4.4-1.sh install2
./gcc-3.4.4-2.sh pre_pkg
./gcc-3.4.4-2.sh pkg
___________________________________________

this gives 7 packages core,g++,...objc


I note that the structure is a little different from that of the
official packages actually present in Cygwin:

   - no libphobos* build
   - part of D compiler is in gcc-core instead of gcc-gdc
   - some *.a file in i686-pc-cygwin instead in i686-pc-cygwin/3.4.4
   - some includes for D not installed
   ...


> I also question the wisdom of requiring building of all of the gcc
> languages: c, c++, d, objc, ada, and java requires a considerable amount
> of time.


I confirm: it takes almost 12 hours on 1.3 GHz processor for the build
step (./gcc-3.4.4-1.sh build).


> I do not have a clue whether a particular patch should be reversed or
> not before being applied, in ada, for example. I just accepted the
> default and hoped for the best.

I Confirm. I have accepted the default hoping it works, too.

In any case I am mainly interessed to gcc, g++, g77.

>From the mailing list it seems to be urgent some fix to GCC in Cygwin. 

In the Cygwin distribution there are packages like Octave that are
incompatible with gcc-3.4.4-1, yet.


Cheers, 
  
   Angelo.


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