diff --git a/lib/libc/db/hash/ndbmdatum.c b/lib/libc/db/hash/ndbmdatum.c
index 2ae7a2790..561e28793 100644
--- a/lib/libc/db/hash/ndbmdatum.c
+++ b/lib/libc/db/hash/ndbmdatum.c
@@ -160,7 +160,7 @@ dbm_store(DBM *db, datum key, datum data, int flags)
 	    (u_int)((flags == DBM_INSERT) ? R_NOOVERWRITE : 0)));
 }
 
-#ifdef __minix
+#if defined(__minix) && defined(__weak_alias)
 __weak_alias(dbm_delete, __dbm_delete13)
 __weak_alias(dbm_fetch, __dbm_fetch13)
 __weak_alias(dbm_firstkey, __dbm_firstkey13)
diff --git a/lib/libc/gen/alphasort.c b/lib/libc/gen/alphasort.c
index 4ea5dba4e..e6f166b4c 100644
--- a/lib/libc/gen/alphasort.c
+++ b/lib/libc/gen/alphasort.c
@@ -58,6 +58,6 @@ alphasort(const void *d1, const void *d2)
 	    (*(const struct dirent *const *)d2)->d_name));
 }
 
-#ifdef __minix
+#if defined(__minix) && defined(__weak_alias)
 __weak_alias(alphasort, __alphasort30)
 #endif
diff --git a/lib/libc/gen/fts.c b/lib/libc/gen/fts.c
index bcf005b1f..16af0d43b 100644
--- a/lib/libc/gen/fts.c
+++ b/lib/libc/gen/fts.c
@@ -1235,7 +1235,7 @@ bail:
 	return ret;
 }
 
-#ifdef __minix
+#if defined(__minix) && defined(__weak_alias)
 __weak_alias(fts_children, __fts_children60)
 __weak_alias(fts_close, __fts_close60)
 __weak_alias(fts_open, __fts_open60)
diff --git a/lib/libc/gen/getpwent.c b/lib/libc/gen/getpwent.c
index 61020f75b..a3f912eca 100644
--- a/lib/libc/gen/getpwent.c
+++ b/lib/libc/gen/getpwent.c
@@ -2604,7 +2604,7 @@ setpwent(void)
 	mutex_unlock(&_pwmutex);
 }
 
-#ifdef __minix
+#if defined(__minix) && defined(__weak_alias)
 __weak_alias(getpwent, __getpwent50)
 __weak_alias(getpwent_r, __getpwent_r50)
 __weak_alias(getpwnam, __getpwnam50)
diff --git a/lib/libc/gen/glob.c b/lib/libc/gen/glob.c
index 220ac7658..d4068dd5c 100644
--- a/lib/libc/gen/glob.c
+++ b/lib/libc/gen/glob.c
@@ -1169,7 +1169,7 @@ qprintf(const char *str, Char *s)
 }
 #endif
 
-#ifdef __minix
+#if defined(__minix) && defined(__weak_alias)
 __weak_alias(glob, __glob30)
 __weak_alias(globfree, __globfree30)
 #endif
diff --git a/lib/libc/gen/minix/utime.c b/lib/libc/gen/minix/utime.c
index df212b90d..ab91a0000 100644
--- a/lib/libc/gen/minix/utime.c
+++ b/lib/libc/gen/minix/utime.c
@@ -23,6 +23,6 @@ int utime(const char *name, const struct utimbuf *timp)
   return(_syscall(VFS_PROC_NR, UTIME, &m));
 }
 
-#ifdef __minix
+#if defined(__minix) && defined(__weak_alias)
 __weak_alias(utime, __utime50)
 #endif
diff --git a/lib/libc/gen/pwcache.c b/lib/libc/gen/pwcache.c
index bda04a8e4..ffe840cab 100644
--- a/lib/libc/gen/pwcache.c
+++ b/lib/libc/gen/pwcache.c
@@ -642,6 +642,6 @@ main(int argc, char *argv[])
 #endif	/* TEST_PWCACHE */
 #endif	/* !HAVE_PWCACHE_USERDB */
 
-#ifdef __minix
+#if defined(__minix) && defined(__weak_alias)
 __weak_alias(pwcache_userdb, __pwcache_userdb50)
 #endif
diff --git a/lib/libc/gen/readdir.c b/lib/libc/gen/readdir.c
index 59f5105ac..136d881db 100644
--- a/lib/libc/gen/readdir.c
+++ b/lib/libc/gen/readdir.c
@@ -146,7 +146,7 @@ readdir_r(DIR *dirp, struct dirent *entry, struct dirent **result)
 	return (0);
 }
 
-#ifdef __minix
+#if defined(__minix) && defined(__weak_alias)
 __weak_alias(readdir, __readdir30)
 __weak_alias(readdir_r, __readdir_r30)
 __weak_alias(readdir_unlocked, ___readdir_unlocked50)
diff --git a/lib/libc/gen/scandir.c b/lib/libc/gen/scandir.c
index 740928940..80964fef4 100644
--- a/lib/libc/gen/scandir.c
+++ b/lib/libc/gen/scandir.c
@@ -155,6 +155,6 @@ bad:
 	return -1;
 }
 
-#ifdef __minix
+#if defined(__minix) && defined(__weak_alias)
 __weak_alias(scandir, __scandir30)
 #endif
diff --git a/lib/libc/gen/sigsetops.c b/lib/libc/gen/sigsetops.c
index 5dfa50a85..9e8b6c0b4 100644
--- a/lib/libc/gen/sigsetops.c
+++ b/lib/libc/gen/sigsetops.c
@@ -45,7 +45,7 @@ __RCSID("$NetBSD: sigsetops.c,v 1.16 2010/07/31 00:04:43 joerg Exp $");
 #include <errno.h>
 #include <signal.h>
 
-#ifdef __minix
+#if defined(__minix) && defined(__weak_alias)
 __weak_alias(sigaddset, __sigaddset14)
 __weak_alias(sigdelset, __sigdelset14)
 __weak_alias(sigemptyset, __sigemptyset14)
diff --git a/lib/libc/gen/time.c b/lib/libc/gen/time.c
index da0db1034..0e85066b6 100644
--- a/lib/libc/gen/time.c
+++ b/lib/libc/gen/time.c
@@ -56,6 +56,6 @@ time(time_t *t)
 	return (time_t)tt.tv_sec;
 }
 
-#ifdef __minix
+#if defined(__minix) && defined(__weak_alias)
 __weak_alias(time, __time50)
 #endif
diff --git a/lib/libc/gen/utmp.c b/lib/libc/gen/utmp.c
index 2b3698201..ae722fc28 100644
--- a/lib/libc/gen/utmp.c
+++ b/lib/libc/gen/utmp.c
@@ -105,6 +105,6 @@ utmpname(const char *fname)
 	return 1;
 }
 
-#ifdef __minix
+#if defined(__minix) && defined(__weak_alias)
 __weak_alias(getutent, __getutent50)
 #endif
diff --git a/lib/libc/gen/utmpx.c b/lib/libc/gen/utmpx.c
index 43fd1f08b..deab17dec 100644
--- a/lib/libc/gen/utmpx.c
+++ b/lib/libc/gen/utmpx.c
@@ -518,7 +518,7 @@ updlastlogx(const char *fname, uid_t uid, struct lastlogx *ll)
 	return error;
 }
 
-#ifdef __minix
+#if defined(__minix) && defined(__weak_alias)
 __weak_alias(getlastlogx, __getlastlogx50)
 __weak_alias(getutmp, __getutmp50)
 __weak_alias(getutmpx, __getutmpx50)
diff --git a/lib/libc/locale/setlocale.c b/lib/libc/locale/setlocale.c
index 469a1c063..6b7ab52d7 100644
--- a/lib/libc/locale/setlocale.c
+++ b/lib/libc/locale/setlocale.c
@@ -109,6 +109,6 @@ setlocale(int category, const char *locale)
 	return __setlocale(category, locale);
 }
 
-#ifdef __minix
+#if defined(__minix) && defined(__weak_alias)
 __weak_alias(setlocale, __setlocale50)
 #endif
diff --git a/lib/libc/stdlib/unsetenv.c b/lib/libc/stdlib/unsetenv.c
index eb1c21ff9..21086d816 100644
--- a/lib/libc/stdlib/unsetenv.c
+++ b/lib/libc/stdlib/unsetenv.c
@@ -105,6 +105,6 @@ unsetenv(const char *name)
 	return 0;
 }
 
-#ifdef __minix
+#if defined(__minix) && defined(__weak_alias)
 __weak_alias(unsetenv, __unsetenv13)
 #endif
diff --git a/lib/libc/sys-minix/getdents.c b/lib/libc/sys-minix/getdents.c
index 58a696b2e..ef17e5440 100644
--- a/lib/libc/sys-minix/getdents.c
+++ b/lib/libc/sys-minix/getdents.c
@@ -14,6 +14,6 @@ ssize_t getdents(int fd, char *buffer, size_t nbytes)
   return _syscall(VFS_PROC_NR, GETDENTS, &m);
 }
 
-#ifdef __minix
+#if defined(__minix) && defined(__weak_alias)
 __weak_alias(getdents, __getdents30)
 #endif
diff --git a/lib/libc/sys-minix/getitimer.c b/lib/libc/sys-minix/getitimer.c
index 7407ce702..e6f382f0e 100644
--- a/lib/libc/sys-minix/getitimer.c
+++ b/lib/libc/sys-minix/getitimer.c
@@ -19,6 +19,6 @@ int getitimer(int which, struct itimerval *value)
   return _syscall(PM_PROC_NR, ITIMER, &m);
 }
 
-#ifdef __minix
+#if defined(__minix) && defined(__weak_alias)
 __weak_alias(getitimer, __getitimer50)
 #endif
diff --git a/lib/libc/sys-minix/mknod.c b/lib/libc/sys-minix/mknod.c
index 885e3a245..606e0205c 100644
--- a/lib/libc/sys-minix/mknod.c
+++ b/lib/libc/sys-minix/mknod.c
@@ -19,6 +19,6 @@ int mknod(const char *name, mode_t mode, dev_t dev)
   return(_syscall(VFS_PROC_NR, MKNOD, &m));
 }
 
-#ifdef __minix
+#if defined(__minix) && defined(__weak_alias)
 __weak_alias(mknod, __mknod50)
 #endif
diff --git a/lib/libc/sys-minix/nanosleep.c b/lib/libc/sys-minix/nanosleep.c
index 5e1f4e3d5..5478d9a3b 100644
--- a/lib/libc/sys-minix/nanosleep.c
+++ b/lib/libc/sys-minix/nanosleep.c
@@ -91,6 +91,6 @@ int nanosleep(const struct timespec *rqtp, struct timespec *rmtp)
 }
 
 
-#ifdef __minix
+#if defined(__minix) && defined(__weak_alias)
 __weak_alias(nanosleep, __nanosleep50)
 #endif
diff --git a/lib/libc/sys-minix/select.c b/lib/libc/sys-minix/select.c
index c54333992..a703d7cf1 100644
--- a/lib/libc/sys-minix/select.c
+++ b/lib/libc/sys-minix/select.c
@@ -21,6 +21,6 @@ int select(int nfds,
 }
 
 
-#ifdef __minix
+#if defined(__minix) && defined(__weak_alias)
 __weak_alias(select, __select50)
 #endif
diff --git a/lib/libc/sys-minix/setitimer.c b/lib/libc/sys-minix/setitimer.c
index f85a2292e..1552b9ddc 100644
--- a/lib/libc/sys-minix/setitimer.c
+++ b/lib/libc/sys-minix/setitimer.c
@@ -25,6 +25,6 @@ int setitimer(int which, const struct itimerval *__restrict value,
   return _syscall(PM_PROC_NR, ITIMER, &m);
 }
 
-#ifdef __minix
+#if defined(__minix) && defined(__weak_alias)
 __weak_alias(setitimer, __setitimer50)
 #endif
diff --git a/lib/libc/sys-minix/settimeofday.c b/lib/libc/sys-minix/settimeofday.c
index 602c952c5..ae0e6b578 100644
--- a/lib/libc/sys-minix/settimeofday.c
+++ b/lib/libc/sys-minix/settimeofday.c
@@ -14,6 +14,6 @@ int settimeofday(const struct timeval *tp, const void *tzp)
 	return stime(&sec);
 }
 
-#ifdef __minix
+#if defined(__minix) && defined(__weak_alias)
 __weak_alias(settimeofday, __settimeofday50)
 #endif
diff --git a/lib/libc/sys-minix/shmctl.c b/lib/libc/sys-minix/shmctl.c
index 656d19236..ee6265e9d 100644
--- a/lib/libc/sys-minix/shmctl.c
+++ b/lib/libc/sys-minix/shmctl.c
@@ -41,6 +41,6 @@ int shmctl(int shmid, int cmd, struct shmid_ds *buf)
 	return r;
 }
 
-#ifdef __minix
+#if defined(__minix) && defined(__weak_alias)
 __weak_alias(shmctl, __shmctl50)
 #endif
diff --git a/lib/libc/sys-minix/sigaction.c b/lib/libc/sys-minix/sigaction.c
index 50501465a..2bb96c818 100644
--- a/lib/libc/sys-minix/sigaction.c
+++ b/lib/libc/sys-minix/sigaction.c
@@ -19,6 +19,6 @@ int sigaction(int sig, const struct sigaction *act, struct sigaction *oact)
   return(_syscall(PM_PROC_NR, SIGACTION, &m));
 }
 
-#ifdef __minix
+#if defined(__minix) && defined(__weak_alias)
 __weak_alias(sigaction, __sigaction14)
 #endif
diff --git a/lib/libc/sys-minix/sigpending.c b/lib/libc/sys-minix/sigpending.c
index f701cfce7..e52f5edc5 100644
--- a/lib/libc/sys-minix/sigpending.c
+++ b/lib/libc/sys-minix/sigpending.c
@@ -14,6 +14,6 @@ sigset_t *set;
   return(m.m_type);
 }
 
-#ifdef __minix
+#if defined(__minix) && defined(__weak_alias)
 __weak_alias(sigpending, __sigpending14)
 #endif
diff --git a/lib/libc/sys-minix/sigprocmask.c b/lib/libc/sys-minix/sigprocmask.c
index f4462a948..4770e8074 100644
--- a/lib/libc/sys-minix/sigprocmask.c
+++ b/lib/libc/sys-minix/sigprocmask.c
@@ -23,6 +23,6 @@ sigset_t *oset;
   return(m.m_type);
 }
 
-#ifdef __minix
+#if defined(__minix) && defined(__weak_alias)
 __weak_alias(sigprocmask, __sigprocmask14)
 #endif
diff --git a/lib/libc/sys-minix/sigsuspend.c b/lib/libc/sys-minix/sigsuspend.c
index c7948ca26..64a402334 100644
--- a/lib/libc/sys-minix/sigsuspend.c
+++ b/lib/libc/sys-minix/sigsuspend.c
@@ -13,6 +13,6 @@ const sigset_t *set;
   return(_syscall(PM_PROC_NR, SIGSUSPEND, &m));
 }
 
-#ifdef __minix
+#if defined(__minix) && defined(__weak_alias)
 __weak_alias(sigsuspend, __sigsuspend14)
 #endif
diff --git a/lib/libc/time/difftime.c b/lib/libc/time/difftime.c
index 2f55eb2f7..0849bc856 100644
--- a/lib/libc/time/difftime.c
+++ b/lib/libc/time/difftime.c
@@ -71,6 +71,6 @@ difftime(const time_t time1, const time_t time0)
 		(unsigned long) (-(time1 + 1)) + 1);
 }
 
-#ifdef __minix
+#if defined(__minix) && defined(__weak_alias)
 __weak_alias(difftime, __difftime50)
 #endif
diff --git a/lib/libc/time/localtime.c b/lib/libc/time/localtime.c
index ba092bbd7..ec46c2171 100644
--- a/lib/libc/time/localtime.c
+++ b/lib/libc/time/localtime.c
@@ -2261,7 +2261,7 @@ posix2time(time_t t)
 
 #endif /* defined STD_INSPIRED */
 
-#ifdef __minix
+#if defined(__minix) && defined(__weak_alias)
 __weak_alias(gmtime, __gmtime50)
 __weak_alias(gmtime_r, __gmtime_r50)
 __weak_alias(offtime, __offtime50)
diff --git a/lib/libutil/login.c b/lib/libutil/login.c
index 38d0ca9ac..c3b61cca0 100644
--- a/lib/libutil/login.c
+++ b/lib/libutil/login.c
@@ -69,4 +69,6 @@ login(const struct utmp *ut)
 	}
 }
 
+#if defined(__minix) && defined(__weak_alias)
 __weak_alias(login, __login50)
+#endif
diff --git a/lib/libutil/login_cap.c b/lib/libutil/login_cap.c
index 27d07fe50..593888e40 100644
--- a/lib/libutil/login_cap.c
+++ b/lib/libutil/login_cap.c
@@ -995,5 +995,7 @@ multiply(u_quad_t n1, u_quad_t n2)
 	return (m);
 }
 
+#if defined(__minix) && defined(__weak_alias)
 __weak_alias(login_getpwclass, __login_getpwclass50)
 __weak_alias(setusercontext, __setusercontext50)
+#endif
diff --git a/lib/libutil/loginx.c b/lib/libutil/loginx.c
index ee2c6b3ae..7a07b0267 100644
--- a/lib/libutil/loginx.c
+++ b/lib/libutil/loginx.c
@@ -53,4 +53,6 @@ loginx(const struct utmpx *ut)
 	(void)updwtmpx(_PATH_WTMPX, ut);
 }
 
+#if defined(__minix) && defined(__weak_alias)
 __weak_alias(loginx, __loginx50)
+#endif
diff --git a/lib/libutil/passwd.c b/lib/libutil/passwd.c
index 5c2055596..5c0cbca5b 100644
--- a/lib/libutil/passwd.c
+++ b/lib/libutil/passwd.c
@@ -662,6 +662,8 @@ pw_getpwconf(char *data, size_t max, const struct passwd *pwd,
 	}
 }
 
+#if defined(__minix) && defined(__weak_alias)
 __weak_alias(pw_copy, __pw_copy50)
 __weak_alias(pw_copyx, __pw_copyx50)
 __weak_alias(pw_getpwconf, __pw_getpwconf50)
+#endif
diff --git a/usr.sbin/mtree/compare.c b/usr.sbin/mtree/compare.c
index 6090967f6..7686f4242 100644
--- a/usr.sbin/mtree/compare.c
+++ b/usr.sbin/mtree/compare.c
@@ -151,11 +151,10 @@ utimes(const char *path, const struct timeval times[2])
 int
 compare(NODE *s, FTSENT *p)
 {
-#if defined(__minix)
 	u_int32_t len, val;
-#else
-	u_int32_t len, val, flags;
-#endif /* defined(__minix) */
+#if HAVE_STRUCT_STAT_ST_FLAGS
+	u_int32_t flags;
+#endif
 	int fd, label;
 	const char *cp, *tab;
 #if !defined(NO_MD5) || !defined(NO_RMD160) || !defined(NO_SHA1) || !defined(NO_SHA2)
diff --git a/usr.sbin/mtree/create.c b/usr.sbin/mtree/create.c
index 264aa8b17..8f0e0db12 100644
--- a/usr.sbin/mtree/create.c
+++ b/usr.sbin/mtree/create.c
@@ -317,9 +317,9 @@ statd(FTS *t, FTSENT *parent, uid_t *puid, gid_t *pgid, mode_t *pmode,
 	gid_t sgid;
 	uid_t suid;
 	mode_t smode;
-#if !defined(__minix)
+#if HAVE_STRUCT_STAT_ST_FLAGS
 	u_long sflags = 0;
-#endif /* !defined(__minix) */
+#endif
 	const char *name = NULL;
 	gid_t savegid;
 	uid_t saveuid;
diff --git a/usr.sbin/mtree/verify.c b/usr.sbin/mtree/verify.c
index 4b7e83d82..11aa8dab1 100644
--- a/usr.sbin/mtree/verify.c
+++ b/usr.sbin/mtree/verify.c
@@ -168,9 +168,9 @@ miss(NODE *p, char *tail)
 	int create;
 	char *tp;
 	const char *type;
-#if !defined(__minix)
+#if HAVE_STRUCT_STAT_ST_FLAGS
 	u_int32_t flags;
-#endif /* !defined(__minix) */
+#endif
 
 	for (; p; p = p->next) {
 		if (p->flags & F_OPT && !(p->flags & F_VISIT))