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Merge pull request #37 from akien-mga/see-optout

Make SSE instructions opt-out

--- a/CMakeLists.txt

+++ b/CMakeLists.txt

@@ -10,12 +10,16 @@

 option(BUILD_EXAMPLES "Build example binaries" ON)

 option(BUILD_ALLEGRO4 "Build Allegro4 support" ON)

+option(USE_SSE "Use SSE instructions" ON)

-set(CMAKE_C_FLAGS "-Wall -DDUMB_DECLARE_DEPRECATED -D_USE_SSE -msse -Wno-unused-variable -Wno-unused-but-set-variable")

+set(CMAKE_C_FLAGS "-Wall -DDUMB_DECLARE_DEPRECATED -Wno-unused-variable -Wno-unused-but-set-variable")

 set(CMAKE_C_FLAGS_DEBUG "-ggdb -DDEBUGMODE=1 -D_DEBUG")

 set(CMAKE_C_FLAGS_RELEASE "-ffast-math -O2 -DNDEBUG")

 set(CMAKE_C_FLAGS_RELWITHDEBINFO "-ffast-math -g -O2 -DNDEBUG")

 set(CMAKE_C_FLAGS_MINSIZEREL "-ffast-math -Os -DNDEBUG")

+if(USE_SSE)

+    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D_USE_SSE -msse")

+endif()

 link_directories(${CMAKE_CURRENT_BINARY_DIR})

 include_directories(include/)

--- a/src/helpers/resampler.c

+++ b/src/helpers/resampler.c

@@ -2,7 +2,7 @@

 #include <string.h>

 #define _USE_MATH_DEFINES

 #include <math.h>

-#if (defined(_M_IX86) || defined(__i386__) || defined(_M_X64) || defined(__amd64__))

+#if defined(_USE_SSE) && (defined(_M_IX86) || defined(__i386__) || defined(_M_X64) || defined(__amd64__))

 #include <xmmintrin.h>

 #define RESAMPLER_SSE

 #endif