2 files changed, 8 insertions, 0 deletions
diff --git a/erts/emulator/sys/unix/sys_float.c b/erts/emulator/sys/unix/sys_float.c
index 787f8d6728..689be98969 100644
--- a/erts/emulator/sys/unix/sys_float.c
+++ b/erts/emulator/sys/unix/sys_float.c
@@ -832,6 +832,8 @@ sys_chars_to_double(char* buf, double* fp)
     return 0;
 }
 
+#ifdef USE_MATHERR
+
 int
 matherr(struct exception *exc)
 {
@@ -842,3 +844,5 @@ matherr(struct exception *exc)
 #endif
     return 1;
 }
+
+#endif
diff --git a/erts/emulator/sys/win32/sys_float.c b/erts/emulator/sys/win32/sys_float.c
index fb1ffc3089..e2a777d182 100644
--- a/erts/emulator/sys/win32/sys_float.c
+++ b/erts/emulator/sys/win32/sys_float.c
@@ -133,6 +133,8 @@ sys_double_to_chars_ext(double fp, char *buffer, size_t buffer_size, size_t deci
     return s-buffer; /* i.e strlen(buffer) */
 }
 
+#ifdef USE_MATHERR
+
 int
 matherr(struct _exception *exc)
 {
@@ -141,6 +143,8 @@ matherr(struct _exception *exc)
     return 1;
 }
 
+#endif
+
 static void
 fpe_exception(int sig)
 {