[MinGW-dvlpr] fixincludes causing GCC mainline bootstrap to fail.

[Aaron W. L. <aar...@aa...>]

make[1]: Entering directory
`/aaronwl/cs/compilers/gcc/build/mingw-head/build-i686-pc-mingw32/fixincludes'
gcc -c -g -O2   -DHAVE_CONFIG_H -I.
-I../../../../src/cvs/head/gcc/fixincludes -I../include
-I../../../../src/cvs/head/gcc/fixincludes/../include
../../../../src/cvs/head/gcc/fixincludes/fixincl.c
../../../../src/cvs/head/gcc/fixincludes/fixincl.c: In function
`initialize':
../../../../src/cvs/head/gcc/fixincludes/fixincl.c:316: error: `SIGQUIT'
undeclared (first use in this function)
../../../../src/cvs/head/gcc/fixincludes/fixincl.c:316: error: (Each
undeclared identifier is reported only once
../../../../src/cvs/head/gcc/fixincludes/fixincl.c:316: error: for each
function it appears in.)
../../../../src/cvs/head/gcc/fixincludes/fixincl.c:323: error: `SIGALRM'
undeclared (first use in this function)
../../../../src/cvs/head/gcc/fixincludes/fixincl.c: In function
`create_file':
../../../../src/cvs/head/gcc/fixincludes/fixincl.c:578: error: too many
arguments to function `mkdir'
../../../../src/cvs/head/gcc/fixincludes/fixincl.c: In function
`internal_fix':
../../../../src/cvs/head/gcc/fixincludes/fixincl.c:861: error: `F_DUPFD'
undeclared (first use in this function)
make[1]: *** [fixincl.o] Error 1
make[1]: Leaving directory
`/aaronwl/cs/compilers/gcc/build/mingw-head/build-i686-pc-mingw32/fixincludes'

Was fixincludes ever being built for i?86-pc-mingw before it the recent
changes to put it in a toplevel directory?

Should this be fixed by disabling fixincludes or by making fixincludes
work on Windows?  Is there any benefit in using fixincludes on Windows
targets?

Aaron W. LaFramboise