Hi Bruno, * Bruno Haible wrote on Sat, Mar 13, 2010 at 05:27:10PM CET: > AC_ARG_ENABLE is documented to accept options only consisting of > "alphanumeric characters, dashes, and dots". I would like to write > > AC_MSG_CHECKING([whether to use C++]) > AC_ARG_ENABLE([c++], > [ --disable-c++ do not build C++ sources], > [CXX_CHOICE="$enableval"], > [CXX_CHOICE=yes]) > AC_MSG_RESULT([$CXX_CHOICE]) > AC_SUBST([CXX_CHOICE])
That sounds good. > Here is a proposed patch. Note that in _AC_INIT_PARSE_ENABLE2 was > already handled, by converting it to an underscore, but that is only half > of the needed job. Those semantics already have users out there, though. For example GCC relies on --disable-libstdc___v3, so this would be an incompatible change. I find the x as mnemonic for + nice too but consistency also with how Automake mangles names to variables would be higher if all mangled characters were replaced with underscores. So much for coloring sheds. Thanks, Ralf
