Disable extra warning flags

In order to disable the extra warning flags, NO_EXTRA_WARN_FLAGS
variable added to userspace Makefile.

3 files changed, 18 insertions, 1 deletions

diff --git a/ChangeLog b/ChangeLog
index adb2eb9..c68417e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2.4.8
+  - In order to disable the extra warning flags, NO_EXTRA_WARN_FLAGS
+    variable added to userspace Makefile
+
 2.4.5
   - Some compiler warning options are too aggressive and
     therefore disabled.
diff --git a/Makefile b/Makefile
index 326aef8..35d9604 100644
--- a/Makefile
+++ b/Makefile
@@ -33,7 +33,8 @@ IPSET_LIB_DIR:=$(LIBDIR)/ipset
 RELEASE_DIR:=/tmp
 
 COPT_FLAGS:=-O2
-WARN_FLAGS:=-Wall \
+WARN_FLAGS:=-Wall
+EXTRA_WARN_FLAGS:=\
 	-Wextra \
 	-Waggregate-return \
 	-Wbad-function-cast \
@@ -58,6 +59,10 @@ WARN_FLAGS:=-Wall \
 	-Wno-missing-field-initializers \
 	-Werror
 
+ifndef NO_EXTRA_WARN_FLAGS
+WARN_FLAGS+=$(EXTRA_WARN_FLAGS)
+endif
+
 CFLAGS:=$(COPT_FLAGS) $(WARN_FLAGS) -Ikernel/include -I. # -g -DIPSET_DEBUG #-pg
 SH_CFLAGS:=$(CFLAGS) -fPIC
 SETTYPES:=ipmap portmap macipmap
diff --git a/README b/README
index a48782d..4833b90 100644
--- a/README
+++ b/README
@@ -14,6 +14,14 @@ This is the ipset source tree. Follow these steps to install ipset:
 	IP_NF_SET_MAX=<<your setsize number>> \
 	IP_NF_SET_HASHSIZE=<<your hashsize number>>
 
+   If your compiler does not support all of the extra warning
+   flags, you can disable those too:
+
+   # make KERNEL_DIR=<<where-you-built-your-kernel>> \
+	IP_NF_SET_MAX=<<your setsize number>> \
+	IP_NF_SET_HASHSIZE=<<your hashsize number>> \
+	NO_EXTRA_WARN_FLAGS=yes
+
 2. Install the binary and the modules
 
    # make KERNEL_DIR=<<where-you-built-your-kernel>> install