Add patch to build kconfig-frontends under Cygwin

git-svn-id: https://nuttx.svn.sourceforge.net/svnroot/nuttx/trunk@4561 7fd9a85b-ad96-42d3-883c-3090e2eb8679

misc/tools/README.txt

@@ -0,0 +1,44 @@
+misc/tools/README.txt
+=====================
+
+genromfs-0.5.2.tar.gz
+
+  This is a snapshot of the genromfs tarball taken from
+  http://sourceforge.net/projects/romfs/.  This snapshot is provided to
+  assure that a working version of genromfs is always available for NuttX.
+
+  This tool is also include in the buildroot and can be built automatically
+  from the buildroot.
+
+kconfig-frontends-3.3.0-1.tar.gz
+
+  This is a snapshot of the kconfig-frontends tarball taken from
+  http://ymorin.is-a-geek.org/projects/kconfig-frontends on April 5, 2012.
+  This snapshot is provided so that a working version of the mconf
+  utility is always available.
+
+  General build instructions:
+
+    ./configure
+    make
+    make install
+
+  To suppress the graphical interfaces:
+
+    ./configure --disable-gconf --disable-qconf
+    make
+    make install
+
+kconfig-frontends-3.3.0-1-libintl.patch
+
+  The above build instructions did not work for me under my Cygwin
+  installation.  This patch is a awful hack but will successfully
+  build 'mconf' under Cygwin.
+
+    cat kconfig-frontends-3.3.0-1-libintl.patch | patch -p0
+    cd kconfig-frontends-3.3.0-1
+    ./configure --disable-gconf --disable-qconf
+    make
+    make install
+
+