audio/clam_voice2midi: Added a patch to fix underlinking.

Exported CFLAGS like required by the scons script

Signed-off-by: Matteo Bernardini <ponce@slackbuilds.org>

audio/clam_voice2midi/clam_voice2midi.SlackBuild

@@ -6,7 +6,7 @@
 
 PRGNAM=clam_voice2midi
 VERSION=${VERSION:-0.3.10}
-BUILD=${BUILD:-1}
+BUILD=${BUILD:-2}
 TAG=${TAG:-_SBo}
 
 SRCNAM=Voice2MIDI
@@ -62,10 +62,14 @@ find . \
 # If all else fails, removepkg qt3 and reinstall it afterwards.
 export QTDIR=$QT4DIR
 
-CFLAGS="$SLKCFLAGS" \
-CXXFLAGS="$SLKCFLAGS" \
+# This is needed to fix underlinkg
+patch -p1 < $CWD/fix_undelinking.patch
+
+CCFLAGS="$SLKCFLAGS" \
+CPPFLAGS="$SLKCFLAGS" \
 	scons \
 	prefix=/usr \
+	release=yes \
 	clam_prefix=/usr
 
 scons install prefix=$PKG/usr

audio/clam_voice2midi/fix_undelinking.patch

@@ -0,0 +1,12 @@
+diff -Naur Voice2MIDI-0.3.10.orig/SConstruct Voice2MIDI-0.3.10/SConstruct
+--- Voice2MIDI-0.3.10.orig/SConstruct	2009-06-29 16:46:18.000000000 +0200
++++ Voice2MIDI-0.3.10/SConstruct	2012-09-16 09:50:30.637847765 +0200
+@@ -164,6 +164,8 @@
+ extralinkFlags = []
+ if sys.platform == 'darwin' :
+ 	extralinkFlags=['-dynamic','-bind_at_load']
++if sys.platform == 'linux2' :
++	extralinkFlags=['-lGL']
+ 
+ programs = []
+ for main in mainSources.items() :