2012/3/30 Ian Lance Taylor: > libitm is not yet supported on MinGW. It is only supported on POSIX > systems at present. My host compiler: > $ g++ -v > Using built-in specs. > COLLECT_GCC=e:\mingw32\bin\g++.exe > COLLECT_LTO_WRAPPER=e:/mingw32/bin/../libexec/gcc/i686-w64-mingw32/4.7.0/lto-wrapper.exe > Target: i686-w64-mingw32 > Configured with: ../../mingw-src/gcc-4.7.0/configure --host=i686-w64-mingw32 > --build=i686-w64-mingw32 --target=i686-w64-mingw32 --enable-targets=all > --enable-multilib --prefix=/./mingw-x32 --with-sysroot=/./mingw-x32 > --with-tune=generic --enable-languages=c,c++,lto,fortran > --enable-libstdcxx-time=yes --with-host-libstdcxx='-static -lstdc++' > --enable-shared --enable-static --enable-threads=posix --enable-libgomp > --enable-lto --enable-graphite --enable-cloog-backend=isl > --enable-checking=release --enable-fully-dynamic-string > --enable-version-specific-runtime-libs --enable-sjlj-exceptions > --disable-libstdcxx-pch --disable-libstdcxx-debug --disable-debug > --disable-bootstrap --disable-rpath --disable-win32-registry --disable-nls > --disable-werror --disable-symvers --with-libiconv --with-gmp=/./mingw-libs-x32 > --with-mpfr=/./mingw-libs-x32 --with-mpc=/./mingw-libs-x32 > --with-ppl=/./mingw-libs-x32 --with-cloog=/./mingw-libs-x32 CFLAGS='-O3 -pipe > -fomit-frame-pointer -momit-leaf-frame-pointer -I/./mingw-libs-x32/include' > CXXFLAGS='-O3 -pipe -fomit-frame-pointer -momit-leaf-frame-pointer' CPPFLAGS= > LDFLAGS='-pipe -s -L/./mingw-libs-x32/lib' > Thread model: posix > gcc version 4.7.0 This means POSIX system? Moreover, if I replace line 134 in file gccroot/libitm/configure.tgt [1] from: > | *-*-darwin* | *-*-aix*) to: > | *-*-darwin* | *-*-aix* | *-w64-mingw32) libitm configures and builds well. And the code that uses Transactional Memory, also is compiled and linked successfully. But when running, occurs segmentation fault. I created the bug-report: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52787 I think there is still hope to make Transactional Memory work in MinGW. [1] http://gcc.gnu.org/viewcvs/trunk/libitm/configure.tgt?view=markup -- Regards, niXman
