[RFA/commit 5/5] Add -Wunused-function to compile flags.
http://sourceware.org/ml/gdb-patches/2010-01/msg00371.html
http://sourceware.org/ml/gdb-cvs/2010-01/msg00163.html

REVERTED

--- src/gdb/configure.ac	2010/01/15 00:34:37	1.112
+++ src/gdb/configure.ac	2010/01/19 09:52:31	1.113
@@ -1544,8 +1544,7 @@
 # gdb/doc/gdbint.texinfo.
 build_warnings="-Wall -Wdeclaration-after-statement -Wpointer-arith \
 -Wformat-nonliteral -Wno-pointer-sign \
--Wno-unused -Wunused-value -Wunused-function \
--Wno-switch -Wno-char-subscripts"
+-Wno-unused -Wunused-value -Wno-switch -Wno-char-subscripts"
 
 # Enable -Wno-format by default when using gcc on mingw since many
 # GCC versions complain about %I64.
--- src/gdb/configure	2010/01/15 00:34:37	1.297
+++ src/gdb/configure	2010/01/19 09:52:32	1.298
@@ -13435,8 +13435,7 @@
 # gdb/doc/gdbint.texinfo.
 build_warnings="-Wall -Wdeclaration-after-statement -Wpointer-arith \
 -Wformat-nonliteral -Wno-pointer-sign \
--Wno-unused -Wunused-value -Wunused-function \
--Wno-switch -Wno-char-subscripts"
+-Wno-unused -Wunused-value -Wno-switch -Wno-char-subscripts"
 
 # Enable -Wno-format by default when using gcc on mingw since many
 # GCC versions complain about %I64.
### src/gdb/ChangeLog	2010/01/19 09:50:48	1.11271
### src/gdb/ChangeLog	2010/01/19 09:52:33	1.11272
## -1,11 +1,5 @@
 2010-01-19  Joel Brobecker  <brobecker@adacore.com>
 
-	Add -Wunused-function to compile flags.
-	* configure.ac: Add -Wunused-function to build_warnings.
-	* configure: Regenerate.
-
-2010-01-19  Joel Brobecker  <brobecker@adacore.com>
-
 	"delete" ada-lex.c:input function, not used.
 	* ada-lex.l: #define YY_NO_INPUT.