openpbs/m4/with_expat.m4

#
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AC_DEFUN([PBS_AC_WITH_EXPAT],
[
  AC_ARG_WITH([expat],
    AS_HELP_STRING([--with-expat=DIR],
      [Specify the directory where expat is installed.]
    )
  )
  AS_IF([test "x$with_expat" != "x"],
    expat_dir=["$with_expat"],
    expat_dir=["/usr"]
  )
  AC_MSG_CHECKING([for expat])
  AS_IF([test -r "$expat_dir/include/expat.h"],
    AS_IF([test "$expat_dir" != "/usr"],
      [expat_inc="-I$expat_dir/include"]),
    AC_MSG_ERROR([expat headers not found.]))
  AS_IF([test "$expat_dir" = "/usr"],
    # Using system installed expat
    AS_IF([test -r "/usr/lib64/libexpat.so" -o -r "/usr/lib/libexpat.so" -o -r "/usr/lib/x86_64-linux-gnu/libexpat.so"],
      [expat_lib="-lexpat"],
      AC_MSG_ERROR([expat shared object library not found.])),
    # Using developer installed expat
    AS_IF([test -r "${expat_dir}/lib64/libexpat.a"],
      [expat_lib="${expat_dir}/lib64/libexpat.a"],
      AS_IF([test -r "${expat_dir}/lib/libexpat.a"],
        [expat_lib="${expat_dir}/lib/libexpat.a"],
        AC_MSG_ERROR([expat library not found.])
      )
    )
  )
  AC_MSG_RESULT([$expat_dir])
  AC_SUBST(expat_inc)
  AC_SUBST(expat_lib)
  AC_DEFINE([EXPAT], [], [Defined when expat is available])
])