diff --git a/src/mtest/mtest.c b/src/mtest/mtest.c
index 69af568..8278c60 100644
--- a/src/mtest/mtest.c
+++ b/src/mtest/mtest.c
@@ -39,6 +39,8 @@
 #include "c-client.h"
 #include "imap4r1.h"
 
+char *gets(char *s);
+
 /* Excellent reasons to hate ifdefs, and why my real code never uses them */
 
 #ifndef unix
diff --git a/src/osdep/unix/flocklnx.c b/src/osdep/unix/flocklnx.c
index ca0112a..f4366ee 100644
--- a/src/osdep/unix/flocklnx.c
+++ b/src/osdep/unix/flocklnx.c
@@ -32,6 +32,7 @@
 #ifndef NFS_SUPER_MAGIC
 #define NFS_SUPER_MAGIC 0x6969
 #endif
+#include "flocklnx.h"
 
 int safe_flock (int fd,int op)
 {
diff --git a/src/osdep/unix/flocklnx.h b/src/osdep/unix/flocklnx.h
new file mode 100644
index 0000000..03a71f7
--- /dev/null
+++ b/src/osdep/unix/flocklnx.h
@@ -0,0 +1,2 @@
+
+int safe_flock (int fd,int op);
diff --git a/src/osdep/unix/os_lnx.h b/src/osdep/unix/os_lnx.h
index b5f39ff..963765c 100644
--- a/src/osdep/unix/os_lnx.h
+++ b/src/osdep/unix/os_lnx.h
@@ -60,6 +60,7 @@
 #define flock safe_flock
 
 
+#include "flocklnx.h"
 #include "env_unix.h"
 #include "fs.h"
 #include "ftl.h"
diff --git a/src/osdep/unix/os_slx.h b/src/osdep/unix/os_slx.h
index b5f39ff..963765c 100644
--- a/src/osdep/unix/os_slx.h
+++ b/src/osdep/unix/os_slx.h
@@ -60,6 +60,7 @@
 #define flock safe_flock
 
 
+#include "flocklnx.h"
 #include "env_unix.h"
 #include "fs.h"
 #include "ftl.h"