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[PATCH] Explicitly link to the nettle/gcrypt libraries

From: Martin Storsjo <>
Date: Fri, 27 Jan 2012 01:50:35 +0200

When support for nettle was added in 64f328c787ab, I overlooked
the fact that AC_CHECK_LIB doesn't add the tested lib to LIBS
if the check succeeded, if a custom success code block was present.
(The previous version of the check had an empty block for
successful checks, adding the lib to LIBS implicitly.)

Therefore, explicitly add either nettle or gcrypt to LIBS, after
deciding which one to use. Even if they can be linked in
transitively, it is safer to actually link explicitly to them.

This fixes building with gnutls with linkers that don't allow
linking transitively, such as for windows.

Sorry for not noticing this earlier... |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/ b/
index cc7f888..8920280 100644
--- a/
+++ b/
@@ -1824,6 +1824,9 @@ if test "$GNUTLS_ENABLED" = "1"; then
   if test "$USE_GNUTLS_NETTLE" = "1"; then
     AC_DEFINE(USE_GNUTLS_NETTLE, 1, [if GnuTLS uses nettle as crypto backend])
+    LIBS="$LIBS -lnettle"
+  else
+    LIBS="$LIBS -lgcrypt"
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Received on 2012-01-27