adding a first patch to see whether it now likes the new GC version

inkscape-0.42-GC-check.patch

@@ -0,0 +1,30 @@
+diff -Nur inkscape-0.42-orig/configure inkscape-0.42/configure
+--- inkscape-0.42-orig/configure	2005-07-25 07:25:35.000000000 +0200
++++ inkscape-0.42/configure	2005-08-18 23:31:12.000000000 +0200
+@@ -22931,7 +22931,7 @@
+ 		    # desired function name.  They're all in libgc.
+ 		    # The "break" will exit from the top level
+                     # AC_CHECK_HEADERS.
+-		    gc_libs=""
++		    gc_libs="-lpthread $lt_cv_dlopen_libs"
+ 		    echo "$as_me:$LINENO: checking for GC_init in -lgc" >&5
+ echo $ECHO_N "checking for GC_init in -lgc... $ECHO_C" >&6
+ if test "${ac_cv_lib_gc_GC_init+set}" = set; then
+@@ -23003,7 +23003,7 @@
+   gc_ok=no
+ fi
+ 
+-		    gc_libs="-lpthread"
++		    gc_libs="-lpthread $lt_cv_dlopen_libs"
+ 		    echo "$as_me:$LINENO: checking for GC_malloc in -lgc" >&5
+ echo $ECHO_N "checking for GC_malloc in -lgc... $ECHO_C" >&6
+ if test "${ac_cv_lib_gc_GC_malloc+set}" = set; then
+@@ -23075,7 +23075,7 @@
+   gc_ok=no
+ fi
+ 
+-		    gc_libs="$lt_cv_dlopen_libs"
++		    gc_libs="-lpthread $lt_cv_dlopen_libs"
+ 		    echo "$as_me:$LINENO: checking for GC_realloc in -lgc" >&5
+ echo $ECHO_N "checking for GC_realloc in -lgc... $ECHO_C" >&6
+ if test "${ac_cv_lib_gc_GC_realloc+set}" = set; then

inkscape.spec

@@ -8,6 +8,7 @@ License:        GPL
 URL:            http://inkscape.sourceforge.net/
 Source0:        http://download.sourceforge.net/inkscape/inkscape-%{version}.tar.bz2
 Patch0:         inkscape-0.42-gettext-x86_64.patch
+Patch1:         inkscape-0.42-GC-check.patch
 BuildRoot:      %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 
 BuildRequires:  atk-devel
@@ -58,6 +59,7 @@ C and C++, using the Gtk+ toolkit and optionally some Gnome libraries.
 --disable-dependency-tracking  \
 --with-xinerama                \
 --enable-static=no             \
+--enable-dlopen                \
 --with-python                  \
 --with-inkjar
 #temporarily disabled until I can look into it further
@@ -104,6 +106,7 @@ update-desktop-database %{_datadir}/applications > /dev/null 2>&1 || :
 %changelog
 * Thu Aug 18 2005 Michael Schwendt <mschwendt[AT]users.sf.net> - 0.42-3
 - rebuilt
+- add patch to repair link-check of GC >= 6.5 (needs pthread and dl)
 
 * Fri Jul 29 2005 Michael Schwendt <mschwendt[AT]users.sf.net> - 0.42-2
 - Extend ngettext/dgettext patch for x86_64 build.