academic/pianobooster: Fix build (remove unneeded flag)

Signed-off-by: Robby Workman <rworkman@slackbuilds.org>

academic/pianobooster/pianobooster.SlackBuild

@@ -3,10 +3,11 @@
 # Slackware build script for pianobooster
 
 # Written by B. Watson (yalhcru@gmail.com)
+# Modified by Willy Sudiarto Raharjo <willysr@slackware-id.org>
 
 PRGNAM=pianobooster
 VERSION=${VERSION:-0.6.4b}
-BUILD=${BUILD:-1}
+BUILD=${BUILD:-2}
 TAG=${TAG:-_SBo}
 
 if [ -z "$ARCH" ]; then
@@ -51,12 +52,19 @@ find . \
  \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
  -exec chmod 644 {} \;
 
+# remove unneeded flag
+  sed -i '/mwindows/d' src/CMakeLists.txt
+
 cd build
   cmake \
     -DCMAKE_C_FLAGS:STRING="$SLKCFLAGS" \
     -DCMAKE_CXX_FLAGS:STRING="$SLKCFLAGS" \
     -DCMAKE_INSTALL_PREFIX=/usr \
     -DCMAKE_BUILD_TYPE=Release ../src
+
+  # DSO GL and pthread fix
+  sed -i "s/$/-lGL -lpthread/" CMakeFiles/pianobooster.dir/link.txt
+
   make VERBOSE=1
   make install/strip DESTDIR=$PKG
 cd ..