http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55800
--- Comment #4 from linedot at xcpp dot org --- The code from comment 2 still doesn't work with GCC 4.8.2 ========================================================================= gcc -v: Using built-in specs. COLLECT_GCC=/usr/x86_64-pc-linux-gnu/gcc-bin/4.8.2/gcc COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-pc-linux-gnu/4.8.2/lto-wrapper Target: x86_64-pc-linux-gnu Configured with: /var/tmp/portage/sys-devel/gcc-4.8.2/work/gcc-4.8.2/configure --host=x86_64-pc-linux-gnu --build=x86_64-pc-linux-gnu --prefix=/usr --bindir=/usr/x86_64-pc-linux-gnu/gcc-bin/4.8.2 --includedir=/usr/lib/gcc/x86_64-pc-linux-gnu/4.8.2/include --datadir=/usr/share/gcc-data/x86_64-pc-linux-gnu/4.8.2 --mandir=/usr/share/gcc-data/x86_64-pc-linux-gnu/4.8.2/man --infodir=/usr/share/gcc-data/x86_64-pc-linux-gnu/4.8.2/info --with-gxx-include-dir=/usr/lib/gcc/x86_64-pc-linux-gnu/4.8.2/include/g++-v4 --with-python-dir=/share/gcc-data/x86_64-pc-linux-gnu/4.8.2/python --enable-languages=c,c++,fortran --enable-obsolete --enable-secureplt --disable-werror --with-system-zlib --enable-nls --without-included-gettext --enable-checking=release --with-bugurl=https://bugs.gentoo.org/ --with-pkgversion='Gentoo 4.8.2 p1.3, pie-0.5.8' --enable-libstdcxx-time --enable-shared --enable-threads=posix --enable-__cxa_atexit --enable-clocale=gnu --enable-multilib --with-multilib-list=m32,m64 --disable-altivec --disable-fixed-point --enable-targets=all --disable-libgcj --enable-libgomp --enable-libmudflap --disable-libssp --enable-lto --with-cloog --disable-isl-version-check Thread model: posix gcc version 4.8.2 (Gentoo 4.8.2 p1.3, pie-0.5.8) ========================================================================= output of compiling code from Comment 2: g++ -std=c++11 main.cpp xyz.cpp /tmp/cccXvzux.o: In function `TLS wrapper function for xyz::bla': main.cpp:(.text._ZTWN3xyz3blaE[_ZTWN3xyz3blaE]+0x5): undefined reference to `TLS init function for xyz::bla' collect2: error: ld returned 1 exit status =========================================================================