diff --git a/deprecation.patch b/deprecation.patch
new file mode 100644
index 0000000..006dc4f
--- /dev/null
+++ b/deprecation.patch
@@ -0,0 +1,12 @@
+diff -up libIDL-0.8.9/include/libIDL/IDL.h.in.deprecation libIDL-0.8.9/include/libIDL/IDL.h.in
+--- libIDL-0.8.9/include/libIDL/IDL.h.in.deprecation	2008-01-29 02:10:35.000000000 -0500
++++ libIDL-0.8.9/include/libIDL/IDL.h.in	2008-01-29 02:11:19.000000000 -0500
+@@ -101,7 +101,7 @@ extern "C" {
+ #define IDL_CHECK_CAST(tree, thetype, name)			\
+ 	(IDL_check_type_cast(tree, thetype,			\
+ 			    __FILE__, __LINE__,			\
+-			    G_GNUC_PRETTY_FUNCTION)->u.name)
++			    G_STRFUNC)->u.name)
+ 
+ /* GLib 2.0 requires 64-bit types */
+ #define IDL_LL		@IDL_LL@
diff --git a/libIDL.spec b/libIDL.spec
index 0cf686c..59af450 100644
--- a/libIDL.spec
+++ b/libIDL.spec
@@ -1,9 +1,10 @@
 Summary: Library for parsing IDL (Interface Definition Language)
 Name: libIDL
 Version: 0.8.9
-Release: 1%{?dist}
+Release: 2%{?dist}
 Source: http://download.gnome.org/sources/libIDL/0.8/%{name}-%{version}.tar.bz2
 Patch0: libIDL-0.8.6-multilib.patch
+Patch1L deprecation.patch
 Group: System Environment/Libraries
 License: LGPLv2+
 BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
@@ -33,6 +34,7 @@ or compile programs that use libIDL.
 %prep
 %setup -q -n %{name}-%{version}
 %patch0 -p1 -b .multilib
+%patch1 -p1 -b .deprecation
 
 %build
 %configure
@@ -75,6 +77,9 @@ rm -rf %{buildroot}
 %{_infodir}/libIDL2.info.gz
 
 %changelog
+* Tue Jan 29 2008 Matthias Clasen <mclasen@redhat.com> - 0.8.9-2
+- Don't use G_GNUC_PRETTY_FUNCTION
+
 * Mon Sep 17 2007 Matthias Clasen <mclasen@redhat.com> - 0.8.9-1
 - Update to 0.8.9