New patches:

[Better handling of the vararg el_get function.
Judah Jacobson <judah.jacobson@gmail.com>**20080526180119] {
hunk ./System/Console/Editline.hsc 94
-foreign import ccall el_get :: Ptr EDITLINE -> CInt -> Ptr a -> IO CInt
+foreign import ccall el_get_one_arg :: Ptr EDITLINE -> CInt -> Ptr a -> IO CInt
hunk ./System/Console/Editline.hsc 106
-            el_get el_p (#const EL_PROMPT) fp 
+            el_get_one_arg el_p (#const EL_PROMPT) fp 
hunk ./cbits/HsEditline.c 15
+int el_get_one_arg(EditLine *e, int op, void *result) {
+    return el_get(e, op, result);
+}
+
hunk ./include/HsEditline.h 11
-extern int el_get(EditLine *e, int op, void *result);
-
hunk ./include/HsEditline.h 16
+extern int el_get_one_arg(EditLine *e, int op, void *result);
}

Context:

[Change read/writeHistory to return a Bool, as in the readline package.
Judah Jacobson <judah.jacobson@gmail.com>**20080317051422] 
[Use rl_completion_matches instead of completion_matches if it's available; the latter is a macro in some versions of libedit.
Judah Jacobson <judah.jacobson@gmail.com>**20080317050704] 
[Fix haddock syntax
Ian Lynagh <igloo@earth.li>**20080316051542] 
[Use extern functions rather than complicated headers in aclocal test.
Judah Jacobson <judah.jacobson@gmail.com>**20080124163251] 
[Remove debugging line.
Judah Jacobson <judah.jacobson@gmail.com>**20080122224549] 
[Include HsEditlineConfig.h.in in distributions.
Judah Jacobson <judah.jacobson@gmail.com>**20080122224235] 
[Bump package version to 0.2
Judah Jacobson <judah.jacobson@gmail.com>**20080122223704] 
[Add history functions.  Also added <editline/editline.h> as a potential header.
Judah Jacobson <judah.jacobson@gmail.com>**20080122223620] 
[TAG 0.1
Judah Jacobson <judah.jacobson@gmail.com>**20080116013123] 
Patch bundle hash:
81e785c1b83db403ed8fb5def5a8148fc34cb048