[trimming extra CCs] Hi Eric,
> Where looking through autoconf history, was indeed something that > autoconf fixed in commit 9f28c6e (autoconf 2.63b) (CentOS 6 is still > stuck on the older autoconf 2.63). > https://lists.gnu.org/archive/html/autoconf-patches/2009-01/msg00051.html > > Sadly, I didn't quickly find a workaround in the archives for how to NOT > trace a macro whose name is problematic You can modify m4/manywarnings.m4: 1) rename AC_DEFUN([gl_MANYWARN_ALL_GCC(C)], to AC_DEFUN([gl_MANYWARN_ALL_GCC__C], 2) rename AC_DEFUN([gl_MANYWARN_ALL_GCC(C++)], to AC_DEFUN([gl_MANYWARN_ALL_GCC__CXX], 3) modify line 39 _AC_LANG_DISPATCH([$0], _AC_LANG, $@) to make an indirection to [gl_MANYWARN_ALL_GCC__]_AC_LANG_PREFIX I was working with this naming scheme in a draft patch. It is not as elegant as the current one, but should work around against said bug (if I have understood it correctly). Bruno
