1 files changed, 4 insertions, 1 deletions
diff --git a/lib/strtod.c b/lib/strtod.c
index 2f6b894cf..0d364f238 100644
--- a/lib/strtod.c
+++ b/lib/strtod.c
@@ -19,6 +19,10 @@
 #endif
 
 #include <errno.h>
+#ifndef errno
+extern int errno;
+#endif
+
 #include <ctype.h>
 #include <math.h>
 
@@ -34,7 +38,6 @@
 #include <string.h>
 #else
 #define NULL 0
-extern int errno;
 #ifndef HUGE_VAL
 #define HUGE_VAL HUGE
 #endif