On 13 March 2012 07:41, <paul.chav...@fnac.net> wrote: > Hello. This should have been CC'd to the libstdc++ list too.
> C++ programs don't link anymore with gcc > 4.5.3 and eglibc 2.15 with > OPTION_EGLIBC_LOCALE_CODE=n. > > It seems that gcc/libstdc++-v3/acinclude.m4 doesn't check for bugs in early > glibc-2.2.x series anymore. So, it doesn't detect the lack of newlocale, > duplocale, freelocale, nl_langinfo_l and uselocale. On the other hand, there > is a new test for the presence of uclibc (!defined(__UCLIBC__)). > > I solved the problem with the '--enable-clocale=generic' option when > configuring gcc. > > So my question to the gcc team is : "should gcc detect the lack of these > functions with eglibc" , or using --enable-clocale=generic is the good > practice ? Ideally, yes. IIRC we require a minimum version of glibc and assume that a sufficiently new glibc will always provide those functions. That assumption predates eglibc and the optional modules. Patches to improve libstdc++'s configure are welcome.