lfs-book/chapter06/gcc-exp.xml

<sect2>
<title>Command explanations</title>

<para><userinput>--enable-__cxa_atexit:</userinput> This option will result
in C++ shared libraries and C++ programs that are interoperable with other
linux distributions.</para>

<para><userinput>--enable-clocale=gnu:</userinput> There is a risk that
some people will build ABI incompatible C++ libraries if they didn't install
all of the glibc localedata. Using --enable-clocale=gnu ensures that the
"right thing" is done in all cases. If you don't wish to use this option,
then at least build the <emphasis>de_DE</emphasis> locale. When GCC finds
this specific locale, then the correct locale mode (<emphasis>gnu</emphasis>)
is implemented.</para>

</sect2>