RE: GNAT on MinGW

["Vo, Anh \(US SSA\)" <Anh.Vo@baesystems.com>]

-----Original Message-----
From: comp.lang.ada-bounces@ada-france.org
[mailto:comp.lang.ada-bounces@ada-france.org] On Behalf Of Cesar Rabak
Sent: Thursday, March 01, 2007 4:37 PM
To: comp.lang.ada@ada-france.org
Subject: Re: GNAT on MinGW

<< [...]
> Way back I successfully built GNAT using cygwin. The problem was that
>  the GNAT built did not support tasking run-time because GNAT under 
> cygwin, used to build the newer GNAT, does not have tasking run-time 
> support. Therefore, any Ada codes involving task will not run.
> 
> Currently, I port MinGW/GNAT to cygwin and build gcc/gnat-4.1.2 using
>  cygwin. The build hit a snap after going one fourth of the way. I 
> scratch my hair with error message as shown below. I would be
> thankful if any one can tell me what headers it looks for.
> 
> [...]
[snipped]

> The directory that should contain system headers does not exist: 
> /mingw/include make[2]: *** [stmp-fixinc] Error 1 make[2]: Leaving
> directory `/cygdrive/e/build-4.1.2/gcc' make[1]: *** [stage1_build]
> Error 2 make[1]: Leaving directory `/cygdrive/e/build-4.1.2/gcc' 
> make: *** [bootstrap] Error 2
> 
It seems it has a hardcode "/mingw/include" path in some config file or
some source (probably a header file generated by ./configure).

My quick shot for testing the hypotesis would be to add in fstab file a 
mapping for /mingw/include to /usr/gnat/mingw32/include (which IIUC is 
your path to the system include files).
>>

I did similar to your suggestion by copying /mingw/include/ to /cygwin.
This fixed got my build go much further, about 2/3 of the way. Again, I
encountered two additional showstoppers. I managed to get by, surprised
myself, these problems. The latest showstopper, as shown below, is a bit
harder. It has some thing to do with adainit.c file. By the way, I am
using Window 2000 instead of Window XP. I hope there is no difference
between them regarding this problem.

[...]
make[4]: Entering directory `/cygdrive/e/build-4.1.2/gcc/ada'
make -C rts \
                CC="`echo \"/cygdrive/e/build-4.1.2/./gcc/xgcc
-B/cygdrive/e/bui
ld-4.1.2/./gcc/ -B/usr/local/mingw32/bin/ -B/usr/local/mingw32/lib/
-isystem /us
r/local/mingw32/include -isystem /usr/local/mingw32/sys-include\" \
                | sed -e 's,^\./xgcc,../../xgcc,' -e
's,-B\./,-B../../,'`" \
                INCLUDES="-I. -I.. -I../..
-I/cygdrive/e/gcc-4.1.2/gcc/ada -I/cy
gdrive/e/gcc-4.1.2/gcc/ada/../config
-I/cygdrive/e/gcc-4.1.2/gcc/ada/../../inclu
de -I/cygdrive/e/gcc-4.1.2/gcc/ada/.. -I./../.." \
                CFLAGS="-g -O2  -fexceptions -DIN_RTS" \
                srcdir=/cygdrive/e/gcc-4.1.2/gcc/ada \
                -f ../Makefile adaint.o argv.o cio.o cstreams.o ctrl_c.o
errno.o
 exit.o raise.o sysdep.o aux-io.o init.o initialize.o seh_init.o cal.o
final.o t
racebak.o expect.o mkdir.o socket.o raise-gcc.o
make[5]: Entering directory `/cygdrive/e/build-4.1.2/gcc/ada/rts'
/cygdrive/e/build-4.1.2/./gcc/xgcc -B/cygdrive/e/build-4.1.2/./gcc/
-B/usr/local
/mingw32/bin/ -B/usr/local/mingw32/lib/ -isystem
/usr/local/mingw32/include -isy
stem /usr/local/mingw32/sys-include -c -DIN_GCC   `echo -g -O2
-fexceptions -DI
N_RTS |sed -e 's/-pedantic//g' -e 's/-Wtraditional//g'`      -I. -I..
-I../.. -I
/cygdrive/e/gcc-4.1.2/gcc/ada -I/cygdrive/e/gcc-4.1.2/gcc/ada/../config
-I/cygdr
ive/e/gcc-4.1.2/gcc/ada/../../include -I/cygdrive/e/gcc-4.1.2/gcc/ada/..
-I./../
.. adaint.c \
          -o adaint.o
xgcc.exe: _spawnvp: No such file or directory
make[5]: *** [adaint.o] Error 1
make[5]: Leaving directory `/cygdrive/e/build-4.1.2/gcc/ada/rts'
make[4]: *** [gnatlib] Error 2
make[4]: Leaving directory `/cygdrive/e/build-4.1.2/gcc/ada'
make[3]: *** [gnatlib-plain] Error 2
make[3]: Leaving directory `/cygdrive/e/build-4.1.2/mingw32/libada'
make[2]: *** [all-target-libada] Error 2
make[2]: Leaving directory `/cygdrive/e/build-4.1.2'
make[1]: *** [all] Error 2
make[1]: Leaving directory `/cygdrive/e/build-4.1.2'
make: *** [bootstrap] Error 2