--- lmms-1.2.0-rc7/include/lmms_math.h.old	2018-09-25 07:47:51.000000000 +0000
+++ lmms-1.2.0-rc7/include/lmms_math.h	2019-01-20 19:22:47.190000000 +0000
@@ -34,7 +34,7 @@
 #include <cmath>
 using namespace std;
 
-#if defined (LMMS_BUILD_WIN32) || defined (LMMS_BUILD_APPLE) || defined(LMMS_BUILD_HAIKU)  || defined (__FreeBSD__) || defined(__OpenBSD__)
+#if defined (LMMS_BUILD_WIN32) || defined (LMMS_BUILD_APPLE) || defined(LMMS_BUILD_HAIKU)  || defined (__FreeBSD__) || defined(__OpenBSD__) || (defined(LMMS_BUILD_LINUX) && !defined(__GLIBC__))
 #ifndef isnanf
 #define isnanf(x)	isnan(x)
 #endif