[balsa] Add dependencies; fixes bug #618979

[Peter Bloomfield <PeterB src gnome org>]

commit bf65e2708756e5b02198a8e0717e15af2ab8aaf3
Author: Peter Bloomfield <PeterBloomfield bellsouth net>
Date:   Thu May 20 20:57:48 2010 -0400

    Add dependencies; fixes bug #618979
    
    	* configure.in: add dependency on gthread-2.0; fixes bug
    	#618979 (Kacper Kowalik); also add -lz to $LIBS, to build
    	without openssl.

 ChangeLog    |    6 ++++++
 configure.in |    4 ++++
 2 files changed, 10 insertions(+), 0 deletions(-)
---
diff --git a/ChangeLog b/ChangeLog
index f296eef..0d10dac 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2010-05-20  Peter Bloomfield
+
+	* configure.in: add dependency on gthread-2.0; fixes bug
+	#618979 (Kacper Kowalik); also add -lz to $LIBS, to build
+	without openssl.
+
 2010-05-06  Pawel Salek
 
 	* libinit_balsa/assistant_page_defclient.c: free memory.
diff --git a/configure.in b/configure.in
index 9795226..428d61d 100644
--- a/configure.in
+++ b/configure.in
@@ -306,11 +306,15 @@ dnl #####################################################################
 dnl 4. Libraries.
 dnl #####################################################################
 
+dnl Make sure ld finds zlib:
+LIBS="$LIBS -lz"
+
 PKG_CHECK_MODULES(BALSA, [
 glib-2.0 >= 2.16.0
 gtk+-2.0 >= 2.14.0
 gmime-$with_gmime
 gio-2.0
+gthread-2.0
 gnome-icon-theme
 $gnome_extras
 ])