README: Mention new (optional) libgio dependency.

libgio may or may not be part of a larger libglib package, depending on
OS and distro.

diff --git a/README b/README
index ace38209404ddcef15ba570475006de162f457c7..d4411294890caeb047aafe55ef9e040674d10323 100644 (file)
--- a/README
+++ b/README
@@ -46,6 +46,7 @@ Requirements for the C library:
  - libftdi1 >= 1.0 (optional, used by some drivers)
  - libgpib (optional, used by some drivers)
  - libieee1284 (optional, used by some drivers)
+ - libgio >= 2.32.0 (optional, used by some drivers)
  - check >= 0.9.4 (optional, only needed to run unit tests)
  - doxygen (optional, only needed for the C API docs)
  - graphviz (optional, only needed for the C API docs)