finish linux scripts

Box2D/CMakeLists.txt

@@ -33,7 +33,7 @@ file(GLOB_RECURSE box2d_source_files "${CMAKE_CURRENT_SOURCE_DIR}/Box2D/*.cpp")
 
 if(LINUX32)
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -m32")
-elseif(LINUX64)
+else()
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -m64")
 endif(LINUX32)
 

Box2D/build_linux.sh

@@ -1,22 +1,29 @@
 #!/bin/sh
+# in order to build 32 bit application on 64bit machine
+# we have to install the following packages
+# and also we should specify the CXX_FLAGS = m32
 sudo apt-get install libx32gcc-4.8-dev
 
 sudo apt-get install libc6-dev-i386
 
+sudo apt-get install lib32stdc++6
+
+sudo apt-get install g++-multilib
+
 rm -rf prebuilt
 
 cmake -DLINUX32=1 .
 
 make
 
-# mkdir -p prebuilt/32/
-# cp lib/libBox2D.a prebuilt/32/
-# rm -rf lib
+mkdir -p prebuilt/32/
+cp lib/libBox2D.a prebuilt/32/
+rm -rf lib
 
-# cmake -DLINUX64=1 .
+cmake -DLINUX32=0 .
 
-# make
+make
 
 
-# mkdir -p prebuilt/64/
-# cp lib/libBox2D.a prebuilt/64/
+mkdir -p prebuilt/64/
+cp lib/libBox2D.a prebuilt/64/