[PATCH] manywarnings: update for GCC 4.8.0

[Paul Eggert]

 ChangeLog          | 8 ++++++++
 m4/manywarnings.m4 | 6 ++----
 2 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 171fa5d..c03bf8c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,13 @@
 2013-05-15  Paul Eggert  <address@hidden>
 
+       manywarnings: update for GCC 4.8.0
+       * m4/manywarnings.m4 (gl_MANYWARN_ALL_GCC):
+       Add -Waggressive-loop-optimizations, -Wreturn-local-addr, which
+       are new to GCC 4.8.  Remove -Wformat=2, -Wmissing-format-attribute,
+       -Wmissing-noreturn, as they are duplicates of other warnings.
+       Remove -Wunreachable-code, as it is removed in GCC 4.8 and
+       was documented to be flaky in earlier versions of GCC.
+
        spawn-tests, sys_socket-tests, sys_wait-tests: port to clang
        * tests/test-spawn.c (main):
        * tests/test-sys_socket.c (main):
diff --git a/m4/manywarnings.m4 b/m4/manywarnings.m4
index 45a30af..be6d4c9 100644
--- a/m4/manywarnings.m4
+++ b/m4/manywarnings.m4
@@ -98,6 +98,7 @@ AC_DEFUN([gl_MANYWARN_ALL_GCC],
     -W \
     -Wabi \
     -Waddress \
+    -Waggressive-loop-optimizations \
     -Wall \
     -Warray-bounds \
     -Wattributes \
@@ -125,7 +126,6 @@ AC_DEFUN([gl_MANYWARN_ALL_GCC],
     -Wformat-security \
     -Wformat-y2k \
     -Wformat-zero-length \
-    -Wformat=2 \
     -Wfree-nonheap-object \
     -Wignored-qualifiers \
     -Wimplicit \
@@ -143,9 +143,7 @@ AC_DEFUN([gl_MANYWARN_ALL_GCC],
     -Wmissing-braces \
     -Wmissing-declarations \
     -Wmissing-field-initializers \
-    -Wmissing-format-attribute \
     -Wmissing-include-dirs \
-    -Wmissing-noreturn \
     -Wmissing-parameter-type \
     -Wmissing-prototypes \
     -Wmudflap \
@@ -166,6 +164,7 @@ AC_DEFUN([gl_MANYWARN_ALL_GCC],
     -Wpointer-sign \
     -Wpointer-to-int-cast \
     -Wpragmas \
+    -Wreturn-local-addr \
     -Wreturn-type \
     -Wsequence-point \
     -Wshadow \
@@ -187,7 +186,6 @@ AC_DEFUN([gl_MANYWARN_ALL_GCC],
     -Wtype-limits \
     -Wuninitialized \
     -Wunknown-pragmas \
-    -Wunreachable-code \
     -Wunsafe-loop-optimizations \
     -Wunused \
     -Wunused-but-set-parameter \
-- 
1.7.11.7