diff --git a/lloyd-yajl-cflags.patch b/lloyd-yajl-cflags.patch
new file mode 100644
index 0000000..7127286
--- /dev/null
+++ b/lloyd-yajl-cflags.patch
@@ -0,0 +1,12 @@
+diff -rup lloyd-yajl-45a1bdb.orig/CMakeLists.txt lloyd-yajl-45a1bdb.new/CMakeLists.txt
+--- lloyd-yajl-45a1bdb.orig/CMakeLists.txt	2009-10-29 23:35:39.000000000 +0000
++++ lloyd-yajl-45a1bdb.new/CMakeLists.txt	2010-01-11 17:14:01.000000000 +0000
+@@ -42,7 +42,7 @@ IF (NOT CMAKE_BUILD_TYPE)
+   SET(CMAKE_BUILD_TYPE "Release")
+ ENDIF (NOT CMAKE_BUILD_TYPE)
+ 
+-SET(CMAKE_C_FLAGS "-Wall")
++SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall")
+ IF (WIN32) 
+   ADD_DEFINITIONS(-DWIN32)
+   SET(linkFlags "/PDB:NONE /INCREMENTAL:NO /OPT:NOREF /OPT:NOICF")
diff --git a/yajl.spec b/yajl.spec
index f226743..fae83b5 100644
--- a/yajl.spec
+++ b/yajl.spec
@@ -1,6 +1,6 @@
 Name: yajl
 Version: 1.0.7
-Release: 2%{?dist}
+Release: 3%{?dist}
 Summary: Yet Another JSON Library (YAJL)
 
 Group: Development/Libraries
@@ -29,6 +29,7 @@ URL: http://lloyd.github.com/yajl/
 %global githash 45a1bdb
 Source0: lloyd-%{name}-%{githash}.tar.gz
 Patch1: lloyd-%{name}-lib64.patch
+Patch2: lloyd-%{name}-cflags.patch
 
 BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 BuildRequires: cmake
@@ -54,6 +55,8 @@ necessary for developing against the YAJL library
 %setup -q -n lloyd-%{name}-%{githash}
 # Fix lib vs lib64 problems
 %patch1 -p1
+# Fix ignoring of CFLAGS
+%patch2 -p1
 
 %build
 # NB, we are not using upstream's 'configure'/'make'
@@ -104,6 +107,9 @@ rm -rf $RPM_BUILD_ROOT
 
 
 %changelog
+* Mon Jan 11 2010 Daniel P. Berrange <berrange@redhat.com> - 1.0.7-3
+- Fix ignoring of cflags (rhbz #547500)
+
 * Tue Dec  8 2009 Daniel P. Berrange <berrange@redhat.com> - 1.0.7-2
 - Change use of 'define' to 'global'