[NetworkManager] Suppress unused-but-set GCC warning

[Daniel Williams]

commit a231c3eb8d93ce049448e7fba63573ab66fa8ce2
Author: Dan Williams <dcbw at redhat.com>
Date:   Tue Feb 1 21:44:23 2011 -0600

    Suppress unused-but-set GCC warning

 NetworkManager.spec             |    2 ++
 no-unused-but-set-warning.patch |   12 ++++++++++++
 2 files changed, 14 insertions(+), 0 deletions(-)
---
diff --git a/NetworkManager.spec b/NetworkManager.spec
index a49e5c0..71fe9b8 100644
--- a/NetworkManager.spec
+++ b/NetworkManager.spec
@@ -32,6 +32,7 @@ Patch1: nm-applet-internal-buildfixes.patch
 Patch2: explain-dns1-dns2.patch
 Patch3: nm-applet-no-notifications.patch
 Patch4: modem-ip-interface-property-change.patch
+Patch5: no-unused-but-set-warning.patch
 Patch10: Port-to-libnotify-070.patch
 Patch11: gtk3-1.patch
 Patch12: gtk3-2.patch
@@ -170,6 +171,7 @@ tar -xjf %{SOURCE1}
 %patch2 -p1 -b .explain-dns1-dns2
 %patch3 -p1 -b .no-notifications
 %patch4 -p1 -b .modem-ip-iface
+%patch5 -p1 -b .no-unused-but-set
 pushd  network-manager-applet-%{realversion}
 %patch10 -p1 -b .libnotify-070
 %patch11 -p1 -b .gtk3-1
diff --git a/no-unused-but-set-warning.patch b/no-unused-but-set-warning.patch
new file mode 100644
index 0000000..3709f0d
--- /dev/null
+++ b/no-unused-but-set-warning.patch
@@ -0,0 +1,12 @@
+diff -up NetworkManager-0.8.2/m4/compiler_warnings.m4.blah NetworkManager-0.8.2/m4/compiler_warnings.m4
+--- NetworkManager-0.8.2/m4/compiler_warnings.m4.blah	2011-02-01 21:43:21.931142148 -0600
++++ NetworkManager-0.8.2/m4/compiler_warnings.m4	2011-02-01 21:43:39.053928083 -0600
+@@ -10,7 +10,7 @@ if test "$GCC" = "yes" -a "$set_more_war
+ 	for option in -Wshadow -Wmissing-declarations -Wmissing-prototypes \
+ 		      -Wdeclaration-after-statement -Wstrict-prototypes \
+ 		      -Wfloat-equal -Wno-unused-parameter -Wno-sign-compare \
+-		      -fno-strict-aliasing; do
++		      -fno-strict-aliasing -Wno-unused-but-set-variable; do
+ 		SAVE_CFLAGS="$CFLAGS"
+ 		CFLAGS="$CFLAGS $option"
+ 		AC_MSG_CHECKING([whether gcc understands $option])