[FFmpeg-cvslog] Remove fminf() emulation.

[Carl Eugen Hoyos]

ffmpeg | branch: release/2.4 | Carl Eugen Hoyos <cehoyos at ag.or.at> | Sat Nov  8 10:48:37 2014 +0100| [2be7d565bb2af0e5041378e74227520790f50257] | committer: Carl Eugen Hoyos

Remove fminf() emulation.

The emulation is unused and causes compilation trouble on systems
where fminf() is defined in <math.h> but missing from libm.
This should fix compilation on Debian powerpcspe.
(cherry picked from commit 4436a8f44dedc83767b3d9da9beb85d1fae2ca30)

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=2be7d565bb2af0e5041378e74227520790f50257
---

 configure        |    2 --
 libavutil/libm.h |   10 ----------
 2 files changed, 12 deletions(-)

diff --git a/configure b/configure
index 3974b94..af02064 100755
--- a/configure
+++ b/configure
@@ -1668,7 +1668,6 @@ MATH_FUNCS="
     exp2
     exp2f
     expf
-    fminf
     isinf
     isnan
     ldexpf
@@ -4782,7 +4781,6 @@ disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersi
 atan2f_args=2
 ldexpf_args=2
 powf_args=2
-fminf_args=2
 
 for func in $MATH_FUNCS; do
     eval check_mathfunc $func \${${func}_args:-1}
diff --git a/libavutil/libm.h b/libavutil/libm.h
index 28d5df8..6c17b28 100644
--- a/libavutil/libm.h
+++ b/libavutil/libm.h
@@ -82,16 +82,6 @@ static av_always_inline float cbrtf(float x)
 #define exp2f(x) ((float)exp2(x))
 #endif /* HAVE_EXP2F */
 
-#if !HAVE_FMINF
-#undef fminf
-static av_always_inline av_const float fminf(float x, float y)
-{
-    //Note, the NaN special case is needed for C spec compliance, it should be
-    //optimized away if the users compiler is configured to assume no NaN
-    return x > y ? y : (x == x ? x : y);
-}
-#endif
-
 #if !HAVE_ISINF
 static av_always_inline av_const int isinf(float x)
 {