diff -aur guile-gtk-2.1_orig/aclocal.m4 guile-gtk-2.1/aclocal.m4
--- guile-gtk-2.1_orig/aclocal.m4	2007-12-19 04:03:43.000000000 +0100
+++ guile-gtk-2.1/aclocal.m4	2016-01-12 02:53:18.028799748 +0100
@@ -609,17 +609,17 @@
 # The variables are marked for substitution, as by @code{AC_SUBST}.
 #
 AC_DEFUN([GUILE_PROGS],
- [AC_PATH_PROG(GUILE,guile)
+ [AC_PATH_PROG(GUILE,guile1.8)
   if test "$GUILE" = "" ; then
       AC_MSG_ERROR([guile required but not found])
   fi
   AC_SUBST(GUILE)
-  AC_PATH_PROG(GUILE_CONFIG,guile-config)
+  AC_PATH_PROG(GUILE_CONFIG,guile-config1.8)
   if test "$GUILE_CONFIG" = "" ; then
       AC_MSG_ERROR([guile-config required but not found])
   fi
   AC_SUBST(GUILE_CONFIG)
-  AC_PATH_PROG(GUILE_TOOLS,guile-tools)
+  AC_PATH_PROG(GUILE_TOOLS,guile-tools1.8)
   AC_SUBST(GUILE_TOOLS)
  ])
 
diff -aur guile-gtk-2.1_orig/configure guile-gtk-2.1/configure
--- guile-gtk-2.1_orig/configure	2007-12-19 04:04:26.000000000 +0100
+++ guile-gtk-2.1/configure	2016-01-12 03:03:40.641386112 +0100
@@ -20162,7 +20162,7 @@
 
 
 # Extract the first word of "guile", so it can be a program name with args.
-set dummy guile; ac_word=$2
+set dummy guile1.8; ac_word=$2
 { echo "$as_me:$LINENO: checking for $ac_word" >&5
 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; }
 if test "${ac_cv_path_GUILE+set}" = set; then
@@ -20208,7 +20208,7 @@
   fi
 
   # Extract the first word of "guile-config", so it can be a program name with args.
-set dummy guile-config; ac_word=$2
+set dummy guile-config1.8; ac_word=$2
 { echo "$as_me:$LINENO: checking for $ac_word" >&5
 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; }
 if test "${ac_cv_path_GUILE_CONFIG+set}" = set; then
@@ -20254,7 +20254,7 @@
   fi
 
   # Extract the first word of "guile-tools", so it can be a program name with args.
-set dummy guile-tools; ac_word=$2
+set dummy guile-tools1.8; ac_word=$2
 { echo "$as_me:$LINENO: checking for $ac_word" >&5
 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; }
 if test "${ac_cv_path_GUILE_TOOLS+set}" = set; then