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path: root/libs/minisat/00_PATCH_no_fpu_control.patch
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--- System.cc
+++ System.cc
@@ -97,17 +97,6 @@ double Minisat::memUsedPeak(bool) { return 0; }
 #endif
 
 
-void Minisat::setX86FPUPrecision()
-{
-#if defined(__linux__) && defined(_FPU_EXTENDED) && defined(_FPU_DOUBLE) && defined(_FPU_GETCW)
-    // Only correct FPU precision on Linux architectures that needs and supports it:
-    fpu_control_t oldcw, newcw;
-    _FPU_GETCW(oldcw); newcw = (oldcw & ~_FPU_EXTENDED) | _FPU_DOUBLE; _FPU_SETCW(newcw);
-    printf("WARNING: for repeatability, setting FPU to use double precision\n");
-#endif
-}
-
-
 #if !defined(_MSC_VER) && !defined(__MINGW32__)
 void Minisat::limitMemory(uint64_t max_mem_mb)
 {
--- System.h
+++ System.h
@@ -21,10 +21,6 @@ OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWA
 #ifndef Minisat_System_h
 #define Minisat_System_h
 
-#if defined(__linux__)
-#include <fpu_control.h>
-#endif
-
 #include "IntTypes.h"
 
 //-------------------------------------------------------------------------------------------------
@@ -36,9 +32,6 @@ static inline double cpuTime(void); // CPU-time in seconds.
 extern double memUsed();            // Memory in mega bytes (returns 0 for unsupported architectures).
 extern double memUsedPeak(bool strictlyPeak = false); // Peak-memory in mega bytes (returns 0 for unsupported architectures).
 
-extern void   setX86FPUPrecision(); // Make sure double's are represented with the same precision
-                                    // in memory and registers.
-
 extern void   limitMemory(uint64_t max_mem_mb); // Set a limit on total memory usage. The exact
                                                 // semantics varies depending on architecture.