3 files changed, 7 insertions, 0 deletions

diff --git a/src/editfns.c b/src/editfns.c
index eab21a4e82a..b4044d2bb78 100644
--- a/src/editfns.c
+++ b/src/editfns.c
@@ -49,7 +49,10 @@ Boston, MA 02111-1307, USA.  */
 #define NULL 0
 #endif
 
+#ifndef USE_CRT_DLL
 extern char **environ;
+#endif
+
 extern Lisp_Object make_time P_ ((time_t));
 extern size_t emacs_strftimeu P_ ((char *, size_t, const char *,
                                    const struct tm *, int));
diff --git a/src/fileio.c b/src/fileio.c
index 38a605ad12f..b5b9213d895 100644
--- a/src/fileio.c
+++ b/src/fileio.c
@@ -65,8 +65,10 @@ Boston, MA 02111-1307, USA.  */
 #include <errno.h>
 
 #ifndef vax11c
+#ifndef USE_CRT_DLL
 extern int errno;
 #endif
+#endif
 
 #ifdef APOLLO
 #include <sys/time.h>
diff --git a/src/floatfns.c b/src/floatfns.c
index d6cbb876e37..db1c3a7231e 100644
--- a/src/floatfns.c
+++ b/src/floatfns.c
@@ -107,8 +107,10 @@ extern double logb ();
 #ifdef FLOAT_CHECK_ERRNO
 # include <errno.h>
 
+#ifndef USE_CRT_DLL
 extern int errno;
 #endif
+#endif
 
 /* Avoid traps on VMS from sinh and cosh.
    All the other functions set errno instead.  */