[Bug ada/81878] --disable-bootstrap --enable-languages=ada fails

[tnfchris at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81878

--- Comment #31 from Tamar Christina <tnfchris at gcc dot gnu.org> ---
> It seems that some paths are properly translated though, for example the library paths.  Do you know why?  It would be nice to have the gnatlink command line that gave rise to the invocation quoted in the dump screen.

Full build log is here
https://mistuke.blob.core.windows.net/binaries/logs/build.log

from that it looks like the command preceding it is

../../gnatbind -I../rts -I.
-IE:/msys64-2.6.0/home/Tamar/MINGW-packages/mingw-w64-gcc/src/gcc-8.2.0/gcc/ada
-I- -I../rts -I.
-IE:/msys64-2.6.0/home/Tamar/MINGW-packages/mingw-w64-gcc/src/gcc-8.2.0/gcc/ada
-static -x -x
E:\msys64-2.6.0\home\Tamar\MINGW-packages\mingw-w64-gcc\src\build-x86_64-w64-mingw32\gcc\ada\tools\gnatclean.ali^M
../../gnatlink -v gnatcmd -o ../../gnat.exe \
  --GCC="../../xgcc -B../../ -I- -I../rts -I.
-I/home/Tamar/MINGW-packages/mingw-w64-gcc/src/gcc-8.2.0/gcc/ada"
--LINK="/home/Tamar/MINGW-packages/mingw-w64-gcc/src/build-x86_64-w64-mingw32/./gcc/xg++
-B/home/Tamar/MINGW-packages/mingw-w64-gcc/src/build-x86_64-w64-mingw32/./gcc/
-nostdinc++ -nostdinc++
-I/home/Tamar/MINGW-packages/mingw-w64-gcc/src/build-x86_64-w64-mingw32/x86_64-w64-mingw32/libstdc++-v3/include/x86_64-w64-mingw32
-I/home/Tamar/MINGW-packages/mingw-w64-gcc/src/build-x86_64-w64-mingw32/x86_64-w64-mingw32/libstdc++-v3/include
-I/home/Tamar/MINGW-packages/mingw-w64-gcc/src/gcc-8.2.0/libstdc++-v3/libsupc++
-I/home/Tamar/MINGW-packages/mingw-w64-gcc/src/gcc-8.2.0/libstdc++-v3/include/backward
-I/home/Tamar/MINGW-packages/mingw-w64-gcc/src/gcc-8.2.0/libstdc++-v3/testsuite/util
-L/home/Tamar/MINGW-packages/mingw-w64-gcc/src/build-x86_64-w64-mingw32/x86_64-w64-mingw32/libstdc++-v3/src
-L/home/Tamar/MINGW-packages/mingw-w64-gcc/src/build-x86_64-w64-mingw32/x86_64-w64-mingw32/libstdc++-v3/src/.libs
-L/home/Tamar/MINGW-packages/mingw-w64-gcc/src/build-x86_64-w64-mingw32/x86_64-w64-mingw32/libstdc++-v3/libsupc++/.libs
-B/home/Tamar/MINGW-packages/mingw-w64-gcc/src/build-x86_64-w64-mingw32/x86_64-w64-mingw32/libstdc++-v3/src/.libs
-B/home/Tamar/MINGW-packages/mingw-w64-gcc/src/build-x86_64-w64-mingw32/x86_64-w64-mingw32/libstdc++-v3/libsupc++/.libs
-L/mingw64/x86_64-w64-mingw32/lib -L/mingw64/lib -isystem
/mingw64/x86_64-w64-mingw32/include -isystem /mingw64/include
-B/mingw64/x86_64-w64-mingw32/bin/ -B/mingw64/x86_64-w64-mingw32/lib/ -isystem
/mingw64/x86_64-w64-mingw32/include -isystem
/mingw64/x86_64-w64-mingw32/sys-include    -static-libstdc++ -static-libgcc
-static-libstdc++ -static-libgcc " ../link.o ../targext.o ../../ggc-none.o
../../libcommon-target.a ../../libcommon.a ../../../libcpp/libcpp.a
../rts/libgnat.a  /mingw64/lib/libiconv.a
../../../libbacktrace/.libs/libbacktrace.a ../../../libiberty/libiberty.a  
-no-pie

It may be the quoting around the options for --LINK that's causing the shell
not to convert the paths. The unquoted ones are fine.