State of djgpp support?

[Dara Hazeghi]

Hello,

I've just tried building cross building djgpp on gcc
3.3 branch and mainline. In neither case, does this
work out of the box, and both fail building libstdc++.
Is libstdc++ currently excpected to build for this
platform at all?

Dara

P.S. Here are the actually errors:

With mainline, build fails in libstdc++:
checking for debug build flags...
configure: error: No support for this host/target
combination.
make: *** [configure-target-libstdc++-v3] Error 1


With gcc 3.3 branch, build fails on getpwd.c for
target -libiberty.

/home/dara/branch/objdir/gcc/xgcc
-B/home/dara/branch/objdir/gcc/
-B/usr/local/i386-pc-msdosdjgpp//i386-pc-msdosdjgpp/bin/
-B/usr/local/i386-pc-msdosdjgpp//i386-pc-msdosdjgpp/lib/
-isystem
/usr/local/i386-pc-msdosdjgpp//i386-pc-msdosdjgpp/include
-c -DHAVE_CONFIG_H -O2 -g -O2 -I.
-I../../../gcc/libiberty/../include  -W -Wall
-Wtraditional -pedantic
../../../gcc/libiberty/make-relative-prefix.c -o
make-relative-prefix.o
../../../gcc/libiberty/getpwd.c: In function `getpwd':
../../../gcc/libiberty/getpwd.c:90: error: `PATH_MAX'
undeclared (first use in this function)

The problem is that MAXPATHLEN is defined in
sys/param.h to be PATH_MAX, but PATH_MAX is defined in
limits.h, which is not included.

Anyhow, once this is worked around build dies in
libstdc++:

/home/dara/branch/objdir/gcc/xgcc -shared-libgcc
-B/home/dara/branch/objdir/gcc/ -nostdinc++
-L/home/dara/branch/objdir/i386-pc-msdosdjgpp/libstdc++-v3/src
-L/home/dara/branch/objdir/i386-pc-msdosdjgpp/libstdc++-v3/src/.libs
-B/usr/local/i386-pc-msdosdjgpp//i386-pc-msdosdjgpp/bin/
-B/usr/local/i386-pc-msdosdjgpp//i386-pc-msdosdjgpp/lib/
-isystem
/usr/local/i386-pc-msdosdjgpp//i386-pc-msdosdjgpp/include
-nostdinc++
-I/home/dara/branch/objdir/i386-pc-msdosdjgpp/libstdc++-v3/include/i386-pc-msdosdjgpp
-I/home/dara/branch/objdir/i386-pc-msdosdjgpp/libstdc++-v3/include
-I../../../../gcc/libstdc++-v3/libsupc++
-I../../../../gcc/libstdc++-v3/libmath -g -O2
-fno-implicit-templates -Wall -Wno-format -W
-Wwrite-strings -fdiagnostics-show-location=once -c
../../../../gcc/libstdc++-v3/src/bitset.cc -o bitset.o
In file included from
/home/dara/branch/objdir/i386-pc-msdosdjgpp/libstdc++-v3/include/bits/locale_facets.h:166,
                 from
/home/dara/branch/objdir/i386-pc-msdosdjgpp/libstdc++-v3/include/bits/basic_ios.h:44,
                 from
/home/dara/branch/objdir/i386-pc-msdosdjgpp/libstdc++-v3/include/ios:51,
                 from
/home/dara/branch/objdir/i386-pc-msdosdjgpp/libstdc++-v3/include/ostream:45,
                 from
/home/dara/branch/objdir/i386-pc-msdosdjgpp/libstdc++-v3/include/bitset:58,
                 from
../../../../gcc/libstdc++-v3/src/bitset.cc:43:
/home/dara/branch/objdir/i386-pc-msdosdjgpp/libstdc++-v3/include/i386-pc-msdosdjgpp/bits/ctype_base.h:46:
error: `
   _U' was not declared in this scope


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