Hi all, hi mingw32 maintainers,
I'm experiencing a strange bug building mainline as a native compiler
on i386-pc-mingw32 (with MSYS). It builds fine with the following
configure line:
../gcc/configure --prefix=/mingw --with-gmp=/home/coudert/local --
disable-nls --with-ld=/mingw/bin/ld --with-as=/mingw/bin/as --
disable-werror --enable-bootstrap --enable-threads --host=i386-pc-
mingw32 --enable-languages=c,fortran
If I add the --enable-libgomp option (I know libgomp is not supposed
to compile, but go on reading) it fails in configure-stage3-
libdecnumber (that is, even *before* doing anything with libgomp):
the error (from config.log) is the following:
configure:1751: error: C compiler cannot create executables
xgcc.exe: CreateProcess: No such file or directory
Now, if I run the same command line that failed during configure,
directly inside a shell, it works nicely. To understand this strange
failure, I changed libiberty/pex-win32.c to print
printf ("CreateProcess (%s, %s, ...)\n", full_executable, cmdline);
just before the CreateProcess call, I get the following output:
configure:1706: checking for C compiler default output file name
configure:1709: /home/coudert/ibin-openmp/./prev-gcc/xgcc -B/home/
coudert/ibin-
openmp/./prev-gcc/ -B/mingw/i386-pc-mingw32/bin/ -g -O2
conftest.c >&5
CreateProcess (C:\msys\1.0.10\home\coudert\ibin-openmp\prev-gcc
\cc1.exe, "C:/msy
s/1.0.10/home/coudert/ibin-openmp/prev-gcc/cc1.exe" "-quiet" "-
iprefix" "c:\msys
\1.0.10\home\coudert\ibin-openmp\prev-gcc\../lib/gcc/i386-pc-
mingw32/4.2.0/" "-i
system" "C:/msys/1.0.10/home/coudert/ibin-openmp/prev-gcc/include"
"conftest.c"
"-quiet" "-dumpbase" "conftest.c" "-mtune=i386" "-auxbase"
"conftest" "-g" "-O2"
"-o" "C:/DOCUME~1/coudert/LOCALS~1/Temp/ccIVaaaa.s", ...)^M
CreateProcess (C:\msys\1.0.10\home\coudert\ibin-openmp\prev-gcc\as,
"C:/msys/1.0
.10/home/coudert/ibin-openmp/prev-gcc/as" "-o" "C:/DOCUME~1/coudert/
LOCALS~1/Tem
p/ccgHbaaa.o" "C:/DOCUME~1/coudert/LOCALS~1/Temp/ccIVaaaa.s", ...)^M
CreateProcess (C:\msys\1.0.10\bin\sh.exe, "\bin\sh" "C:/msys/1.0.10/
home/coudert
/ibin-openmp/prev-gcc/as" "-o" "C:/DOCUME~1/coudert/LOCALS~1/Temp/
ccgHbaaa.o" "C
:/DOCUME~1/coudert/LOCALS~1/Temp/ccIVaaaa.s", ...)^M
xgcc.exe: CreateProcess: No such file or directory^M
I'm trying to understand exactly why all this only happens for --
enable-libgomp builds (it's 100% reproducible for me, with different
versions of mainline, bootstrapping everytime). So, is what I'm
seeing an expected behaviour? How can I investigate further?
Thanks,
FX
