dnl Checks for typedefs, structures, and compiler characteristics.
dnl
AC_C_CONST
AC_TYPE_MODE_T
AC_TYPE_SIZE_T
dnl
dnl Checks for library functions.
dnl
AC_FUNC_MEMCMP
dnl
dnl Find pkgconfig directory
dnl
AC_MSG_CHECKING(location of pkgconfig directory)
for pkgdir in "${prefix}/lib/pkgconfig" "${prefix}/lib/libdata/pkgconfig" "${prefix}/libdata/pkgconfig" "/usr/lib/pkgconfig" "/usr/local/lib/pkgconfig" "/usr/libdata/pkgconfig" "/usr/local/libdata/pkgconfig" "/usr/pkg/lib/pkgconfig" "NONE"; do