[Bug target/14666] Crossing from GNU/Linux to MinGW requires SEVERAL hacks

[stl at caltech dot edu]

------- Additional Comments From stl at caltech dot edu  2004-03-29 21:16 -------
I should add that dllcrt2.o needs to be copied too in the fourth hack, 
otherwise DLLs can't be created.

As an experiment, I executed -print-search-dirs with bootstrapped vs. crossed 
3.3.3. I replaced the directory that the compiler lives in with WHATEVER/. 
Tidying things up a bit (leaving out "install:" which is apparently 
irrelevant, eliminating non-existent directories, etc.), I get:

[CROSS]
programs:
WHATEVER/lib/gcc-lib/mingw32/3.3.3/
WHATEVER/lib/gcc-lib/
WHATEVER/mingw32/bin/mingw32/3.3.3/
WHATEVER/mingw32/bin/

libraries:
WHATEVER/lib/gcc-lib/mingw32/3.3.3/
WHATEVER/lib/gcc-lib/
WHATEVER/mingw32/lib/mingw32/3.3.3/
WHATEVER/mingw32/lib/

[BOOTSTRAP]
programs:
WHATEVER/lib/gcc-lib/i686-pc-mingw32/3.3.3/
WHATEVER/lib/gcc-lib/
WHATEVER/i686-pc-mingw32/bin/i686-pc-mingw32/3.3.3/
WHATEVER/i686-pc-mingw32/bin/

libraries:
WHATEVER/lib/gcc-lib/i686-pc-mingw32/3.3.3/
WHATEVER/lib/gcc-lib/
WHATEVER/i686-pc-mingw32/lib/i686-pc-mingw32/3.3.3/
WHATEVER/i686-pc-mingw32/lib/
WHATEVER/lib/i686-pc-mingw32/3.3.3/
WHATEVER/lib/

The cross was made with a target of mingw32 instead of i686-pc-mingw32, but 
that is irrelevant here.

Note that the bootstrap has an extra directory in the "libraries:" which is 
not present for the cross:

WHATEVER/lib/

crt2.o and dllcrt2.o live here. If the cross had this directory too, I bet the 
fourth hack would not be necessary.

The crossed 3.3.3 still manages to find WHATEVER/lib/libFOO.a when -lFOO is 
given.

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14666