Simon Josefsson wrote: > I want to add some warning flags from configure, including -Werror.
You can use AC_PREPROC_IFELSE if using GCC: $ gcc -E -x c /dev/null -Wno-frobnicate cc1: error: unrecognized command line option "-Wno-frobnicate" It is faster. Also, this: > + AC_COMPILE_IFELSE(AC_LANG_PROGRAM([]), foo=yes, foo=no) is underquoted: AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])], foo=yes, foo=no) Thanks, Paolo
