http://bugs.gentoo.org/454216

Mon Jan  7 16:34:47 FET 2013  Judah Jacobson <judah.jacobson@gmail.com>
  * Search for terminfo in libtinfo; fixes GHC #7281.
  
  Patch from Paul Johnson.
diff -rN -u old-terminfo/configure.ac new-terminfo/configure.ac
--- old-terminfo/configure.ac	2013-02-14 00:16:11.816111434 +0300
+++ new-terminfo/configure.ac	2013-02-14 00:16:11.819111434 +0300
@@ -39,10 +39,11 @@
     TERMINFO_INCLUDES="$CursesIncludes term.h"
 fi
 
-AC_CHECK_LIB(ncursesw, setupterm, HaveLibCurses=YES; LibCurses=ncursesw,
-  [AC_CHECK_LIB(ncurses, setupterm, HaveLibCurses=YES; LibCurses=ncurses,
-    [AC_CHECK_LIB(curses, setupterm, HaveLibCurses=YES; LibCurses=curses,
-      HaveLibCurses=NO; LibCurses=not-installed)])])
+AC_CHECK_LIB(tinfo, setupterm, HaveLibCurses=YES; LibCurses=tinfo,
+  [AC_CHECK_LIB(ncursesw, setupterm, HaveLibCurses=YES; LibCurses=ncursesw,
+    [AC_CHECK_LIB(ncurses, setupterm, HaveLibCurses=YES; LibCurses=ncurses,
+      [AC_CHECK_LIB(curses, setupterm, HaveLibCurses=YES; LibCurses=curses,
+        HaveLibCurses=NO; LibCurses=not-installed)])])])
 
 if test "x$HaveLibCurses" = "xNO" ; then
     AC_MSG_FAILURE([curses library not found, so this package cannot be built])