autoconf/m4/pa_build_ifelse.m4

   1 dnl --------------------------------------------------------------------------
   2 dnl PA_BUILD_IFELSE(input [,success [,failure]])
   3 dnl
   4 dnl  Same as AC_LINK_IFELSE for languages where linking is applicable,
   5 dnl  otherwise AC_COMPILE_IFELSE.
   6 dnl
   7 dnl If the first argument is empty, use _AC_LANG_IO_PROGRAM.
   8 dnl --------------------------------------------------------------------------
   9 m4_defun([_PA_BUILD_IFELSE],
  10 [m4_case(_AC_LANG,
  11  [Erlang], [AC_COMPILE_IFELSE($@)],
  12  [AC_LINK_IFELSE($@)])])
  13
  14 AC_DEFUN([PA_BUILD_IFELSE],
  15 [_PA_BUILD_IFELSE([m4_ifblank([$1],[AC_LANG_SOURCE(_AC_LANG_IO_PROGRAM)],
  16  [$1])],[$2],[$3])])