On Sunday 05 April 2009 20:46:03 Eric Blake wrote: > According to Mike Frysinger on 4/5/2009 4:10 PM: > > AC_TRY_COMPILE() is invoked with an empty 4th argument: []. i think > > > > [ sp_expire_available=yes ], [] > > ) > > That's not an empty fourth argument. Remember, trailing space IS > significant, and only leading space is stripped. The bug is in your > configure.ac. > > That said, autoconf could probably be taught that, for some macros, an > argument of all whitespace is morally equivalent to an empty argument. seems the issue is worse than people being pedantic with []. for example, if a macro is expanded implicitly, then a user explicit call to that macro gets nooped and we're back where we started -- syntax error simple example: $ cat configure.ac AC_INIT AS_IF([:], [ : some random user stuff ],[ AC_PROG_LEX AC_DECL_YYTEXT ]) AC_OUTPUT $ autoconf --version autoconf (GNU Autoconf) 2.64 $ autoconf && ./configure -q ./configure: line 2676: syntax error near unexpected token `fi' ./configure: line 2676: `fi' -mike _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx http://lists.gnu.org/mailman/listinfo/autoconf
