--- a/libavfilter/vf_drawtext.c	2017-10-26 21:03:03.000000000 +0200
+++ b/libavfilter/vf_drawtext.c	2017-11-21 11:06:49.602284422 +0100
@@ -39,6 +39,15 @@
 #endif
 #include <fenv.h>
 
+#if (FE_ALL_EXCEPT == 0)
+/* E.g. ARM soft float does not define these */
+#define FE_INVALID    0
+#define FE_DIVBYZERO  0
+#define FE_OVERFLOW   0
+#define FE_UNDERFLOW  0
+#define FE_INEXACT    0
+#endif
+
 #if CONFIG_LIBFONTCONFIG
 #include <fontconfig/fontconfig.h>
 #endif
