On Feb 6, 2008 11:51 PM, Mike Frysinger <[EMAIL PROTECTED]> wrote: > > Blackfin is not the only target that utilizes underscore prefixes. a more > generic check (as noted in the previous thread you cited) would be to > consider the define from gcc __USER_LABEL_PREFIX__. > -mike >
Please take a look at AC_LIBTOOL_SYS_GLOBAL_SYMBOL_PIPE in libtool.m4. There are lines that read like this: # Try without a prefix undercore, then with it. for ac_symprfx in "" "_"; do # Transform symcode, sympat, and symprfx into a raw symbol and a C symbol. symxfrm="\\1 $ac_symprfx\\2 \\2" # Write the raw and C identifiers. lt_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[[ ]]\($symcode$symcode*\)[[ ]][[ ]]*$ac_symprfx$sympat$opt_cr$/$symx That is while finding the correct global_symbol_pipe command it uses temporary variable $ac_symprfx. I think this variable could be just re-used to tell if the system requires underscore. There is no need for a separate test that relies on a gcc feature. The existing test goes through the entire chain compiler/linker/NM and therefore should be more reliable. Regards, Aleksey _______________________________________________ http://lists.gnu.org/mailman/listinfo/libtool
