avutil/softfloat: properly separate testcode

This matches how other self tests are implemented
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libavutil/Makefile

@@ -126,6 +126,7 @@ OBJS = adler32.o                                                        \
        samplefmt.o                                                      \
        sha.o                                                            \
        sha512.o                                                         \
+       softfloat.o                                                      \
        stereo3d.o                                                       \
        threadmessage.o                                                  \
        time.o                                                           \

libavutil/softfloat.c

@@ -19,18 +19,10 @@
  */
 
 #include <inttypes.h>
-#include <stdio.h>
 #include "softfloat.h"
 #include "common.h"
 #include "log.h"
 
-#undef printf
-
-static const SoftFloat FLOAT_0_017776489257 = {0x1234, 12};
-static const SoftFloat FLOAT_1374_40625 = {0xabcd, 25};
-static const SoftFloat FLOAT_0_1249694824218 = {0xFFF, 15};
-
-
 static av_const double av_sf2double(SoftFloat v) {
     v.exp -= ONE_BITS +1;
     if(v.exp > 0) return (double)v.mant * (double)(1 << v.exp);
@@ -86,6 +78,14 @@ void av_sincos_sf(int a, int *s, int *c)
     *s = (int)(((int64_t)cv * st + (int64_t)sv * ct + 0x20000000) >> 30);
 }
 
+#ifdef TEST
+#include <stdio.h>
+
+static const SoftFloat FLOAT_0_017776489257 = {0x1234, 12};
+static const SoftFloat FLOAT_1374_40625 = {0xabcd, 25};
+static const SoftFloat FLOAT_0_1249694824218 = {0xFFF, 15};
+
+
 int main(void){
     SoftFloat one= av_int2sf(1, 0);
     SoftFloat sf1, sf2, sf3;
@@ -155,3 +155,4 @@ int main(void){
     return 0;
 
 }
+#endif