diff --git a/src/core/sys/freebsd/sys/event.d b/src/core/sys/freebsd/sys/event.d
index 2bd3839f095..6e4c8928bd0 100644
--- a/src/core/sys/freebsd/sys/event.d
+++ b/src/core/sys/freebsd/sys/event.d
@@ -161,7 +161,13 @@ enum
 }
 
 int kqueue();
-pragma(mangle, "kevent@FBSD_1.0")
-int kevent(int kq, const kevent_t *changelist, int nchanges,
-           kevent_t *eventlist, int nevents,
-           const timespec *timeout);
+static if (__FreeBSD_version >= 1200000)
+    pragma(mangle, "kevent@@FBSD_1.5")
+    int kevent(int kq, const kevent_t *changelist, int nchanges,
+               kevent_t *eventlist, int nevents,
+               const timespec *timeout);
+else
+    pragma(mangle, "kevent@FBSD_1.0")
+    int kevent(int kq, const kevent_t *changelist, int nchanges,
+               kevent_t *eventlist, int nevents,
+               const timespec *timeout);
diff --git a/src/core/sys/freebsd/sys/mount.d b/src/core/sys/freebsd/sys/mount.d
index 7051dd675c5..3c488408dbd 100644
--- a/src/core/sys/freebsd/sys/mount.d
+++ b/src/core/sys/freebsd/sys/mount.d
@@ -298,17 +298,28 @@ enum uint VQ_FLAG2000 = 0x2000;
 enum uint VQ_FLAG4000 = 0x4000;
 enum uint VQ_FLAG8000 = 0x8000;
 
-pragma(mangle, "fhopen@@FBSD_1.0")    int fhopen(const fhandle_t*, int);
-pragma(mangle, "fhstat@FBSD_1.0")     int fhstat(const fhandle_t*, stat_t*);
-pragma(mangle, "fhstatfs@FBSD_1.0")   int fhstatfs(const fhandle_t*, statfs_t*);
-pragma(mangle, "fstatfs@FBSD_1.0")    int fstatfs(int, statfs_t*);
-pragma(mangle, "getfh@@FBSD_1.0")     int getfh(const char*, fhandle_t*);
-pragma(mangle, "getfsstat@FBSD_1.0")  int getfsstat(statfs_t*, c_long, int);
-pragma(mangle, "getmntinfo@FBSD_1.0") int getmntinfo(statfs_t**, int);
-pragma(mangle, "lgetfh@@FBSD_1.0")    int lgetfh(const char*, fhandle_t*);
-pragma(mangle, "mount@@FBSD_1.0")     int mount(const char*, const char*, int, void*);
+static if (__FreeBSD_version >= 1200000)
+{
+    pragma(mangle, "fhstat@FBSD_1.5")     int fhstat(const fhandle_t*, stat_t*);
+    pragma(mangle, "fhstatfs@FBSD_1.5")   int fhstatfs(const fhandle_t*, statfs_t*);
+    pragma(mangle, "fstatfs@FBSD_1.5")    int fstatfs(int, statfs_t*);
+    pragma(mangle, "getfsstat@FBSD_1.5")  int getfsstat(statfs_t*, c_long, int);
+    pragma(mangle, "getmntinfo@FBSD_1.5") int getmntinfo(statfs_t**, int);
+    pragma(mangle, "statfs@FBSD_1.5")     int statfs(const char*, statfs_t*);
+}
+else
+{
+    pragma(mangle, "fhstat@FBSD_1.0")     int fhstat(const fhandle_t*, stat_t*);
+    pragma(mangle, "fhstatfs@FBSD_1.0")   int fhstatfs(const fhandle_t*, statfs_t*);
+    pragma(mangle, "fstatfs@FBSD_1.0")    int fstatfs(int, statfs_t*);
+    pragma(mangle, "getfsstat@FBSD_1.0")  int getfsstat(statfs_t*, c_long, int);
+    pragma(mangle, "getmntinfo@FBSD_1.0") int getmntinfo(statfs_t**, int);
+    pragma(mangle, "statfs@FBSD_1.0")     int statfs(const char*, statfs_t*);
+}
+pragma(mangle, "fhopen@@FBSD_1.0")        int fhopen(const fhandle_t*, int);
+pragma(mangle, "getfh@@FBSD_1.0")         int getfh(const char*, fhandle_t*);
+pragma(mangle, "lgetfh@@FBSD_1.0")        int lgetfh(const char*, fhandle_t*);
+pragma(mangle, "mount@@FBSD_1.0")         int mount(const char*, const char*, int, void*);
 //int nmount(iovec*, uint, int);
-pragma(mangle, "statfs@FBSD_1.0")     int statfs(const char*, statfs_t*);
-pragma(mangle, "unmount@@FBSD_1.0")   int unmount(const char*, int);
-
+pragma(mangle, "unmount@@FBSD_1.0")       int unmount(const char*, int);
 //int getvfsbyname(const char*, xvfsconf*);
diff --git a/src/core/sys/posix/dirent.d b/src/core/sys/posix/dirent.d
index f9189e182d0..4e02e310c69 100644
--- a/src/core/sys/posix/dirent.d
+++ b/src/core/sys/posix/dirent.d
@@ -186,7 +186,10 @@ else version (FreeBSD)
 
     alias void* DIR;
 
-    pragma(mangle, "readdir@FBSD_1.0") dirent* readdir(DIR*);
+    static if (__FreeBSD_version >= 1200000)
+        pragma(mangle, "readdir@FBSD_1.5") dirent* readdir(DIR*);
+    else
+        pragma(mangle, "readdir@FBSD_1.0") dirent* readdir(DIR*);
 }
 else version (NetBSD)
 {
@@ -504,7 +507,10 @@ else version (Darwin)
 }
 else version (FreeBSD)
 {
-    pragma(mangle, "readdir_r@FBSD_1.0") int readdir_r(DIR*, dirent*, dirent**);
+    static if (__FreeBSD_version >= 1200000)
+        pragma(mangle, "readdir_r@FBSD_1.5") int readdir_r(DIR*, dirent*, dirent**);
+    else
+        pragma(mangle, "readdir_r@FBSD_1.0") int readdir_r(DIR*, dirent*, dirent**);
 }
 else version (DragonFlyBSD)
 {
diff --git a/src/core/sys/posix/sys/stat.d b/src/core/sys/posix/sys/stat.d
index d1b1e75bb98..5295fb43556 100644
--- a/src/core/sys/posix/sys/stat.d
+++ b/src/core/sys/posix/sys/stat.d
@@ -2278,9 +2278,18 @@ else version (Darwin)
 }
 else version (FreeBSD)
 {
-    pragma(mangle, "fstat@FBSD_1.0") int   fstat(int, stat_t*);
-    pragma(mangle, "lstat@FBSD_1.0") int   lstat(const scope char*, stat_t*);
-    pragma(mangle, "stat@FBSD_1.0")  int   stat(const scope char*, stat_t*);
+    static if (__FreeBSD_version >= INO64_FIRST)
+    {
+        pragma(mangle, "fstat@FBSD_1.5") int   fstat(int, stat_t*);
+        pragma(mangle, "lstat@FBSD_1.5") int   lstat(const scope char*, stat_t*);
+        pragma(mangle, "stat@FBSD_1.5")  int   stat(const scope char*, stat_t*);
+    }
+    else
+    {
+        pragma(mangle, "fstat@FBSD_1.0") int   fstat(int, stat_t*);
+        pragma(mangle, "lstat@FBSD_1.0") int   lstat(const scope char*, stat_t*);
+        pragma(mangle, "stat@FBSD_1.0")  int   stat(const scope char*, stat_t*);
+    }
 }
 else version (NetBSD)
 {
@@ -2400,7 +2409,10 @@ else version (FreeBSD)
     enum S_IFLNK    = 0xA000; // octal 0120000
     enum S_IFSOCK   = 0xC000; // octal 0140000
 
-    pragma(mangle, "mknod@FBSD_1.0") int mknod(const scope char*, mode_t, dev_t);
+    static if (__FreeBSD_version >= INO64_FIRST)
+        pragma(mangle, "mknod@FBSD_1.5") int mknod(const scope char*, mode_t, dev_t);
+    else
+        pragma(mangle, "mknod@FBSD_1.0") int mknod(const scope char*, mode_t, dev_t);
 }
 else version (NetBSD)
 {