nixpkgs/pkgs/development/libraries/libbsd/darwin.patch

diff --git a/configure.ac b/configure.ac
index 88ccd91..0857782 100644
--- a/configure.ac
+++ b/configure.ac
@@ -59,7 +59,7 @@ AS_CASE([$host_os],
 )
 
 # Checks for header files.
-AC_CHECK_HEADERS([sys/ndir.h sys/dir.h ndir.h dirent.h])
+AC_CHECK_HEADERS([sys/ndir.h sys/dir.h ndir.h dirent.h stdio_ext.h])
 
 # Checks for typedefs, structures, and compiler characteristics.
 AC_C_INLINE
@@ -146,6 +146,31 @@ AC_CHECK_FUNCS([clearenv dirfd fopencookie __fpurge \
                 pstat_getproc sysconf])
 AM_CONDITIONAL([HAVE_GETENTROPY], [test "x$ac_cv_func_getentropy" = "xtrue"])
 
+HostOS=`echo "$host" | sed 's/.*-//'`
+os_is_macosx=false
+nonLinuxOS=false
+AC_SUBST(HostOS)
+case ${HostOS} in
+	darwin* | powerpc*-*-darwin* | freebsd* | netbsd* | openbsd*)
+		os_is_macosx=true
+		nonLinuxOS=true
+		echo HostOS="$HostOS"
+		;;
+	*)
+		echo host="$host"
+		echo HostOS="$HostOS"
+		os_is_macosx=false
+		nonLinuxOS=false
+		;;
+esac		
+AM_CONDITIONAL([IS_DARWIN], [test x$os_is_macosx = xtrue])
+AM_COND_IF([IS_DARWIN],
+	[AC_DEFINE([IS_DARWIN], [1], [Get HostOS Type is Darwin])])
+
+AM_CONDITIONAL([NON_LINUX], [test x$userdefine_gethostbyname_r = xtrue])
+AM_COND_IF([NON_LINUX],
+	[AC_DEFINE([NON_LINUX], [1], [Get HostOS Type])])
+
 AC_CONFIG_FILES([
 	Makefile
 	include/Makefile
diff --git a/include/bsd/libutil.h b/include/bsd/libutil.h
index 45b3b15..d0d4043 100644
--- a/include/bsd/libutil.h
+++ b/include/bsd/libutil.h
@@ -39,7 +39,9 @@
 #ifndef LIBBSD_LIBUTIL_H
 #define LIBBSD_LIBUTIL_H
 
+#ifdef HAVE_FEATURES_H
 #include <features.h>
+#endif
 #include <sys/cdefs.h>
 #include <sys/types.h>
 #include <stdint.h>
diff --git a/include/bsd/stdio.h b/include/bsd/stdio.h
index 4b69983..c75151b 100644
--- a/include/bsd/stdio.h
+++ b/include/bsd/stdio.h
@@ -48,12 +48,16 @@
 __BEGIN_DECLS
 const char *fmtcheck(const char *, const char *);
 
+#if !defined(darwin) && !defined(__APPLE__) && !defined(MACOSX)
 /* XXX: The function requires cooperation from the system libc to store the
  * line buffer in the FILE struct itself. */
 char *fgetln(FILE *fp, size_t *lenp)
-	LIBBSD_DEPRECATED("This functions cannot be safely ported, "
-	                  "use getline(3) instead, as it is supported "
-	                  "by GNU and POSIX.1-2008.");
+	__attribute__((deprecated("This functions cannot be safely ported, "
+	                          "use getline(3) instead, as it is supported "
+	                          "by GNU and POSIX.1-2008.")));
+#else
+char *fgetln(FILE *fp, size_t *lenp);
+#endif
 
 /*
  * Note: We diverge from the FreeBSD, OpenBSD and DragonFlyBSD declarations,
diff --git a/include/bsd/stdlib.h b/include/bsd/stdlib.h
index ebc9638..6cd7943 100644
--- a/include/bsd/stdlib.h
+++ b/include/bsd/stdlib.h
@@ -67,9 +67,11 @@ int sradixsort(const unsigned char **base, int nmemb,
                const unsigned char *table, unsigned endbyte);
 
 void *reallocf(void *ptr, size_t size);
-#if defined(_GNU_SOURCE) && defined(__GLIBC__) && !__GLIBC_PREREQ(2, 26)
+#if defined(_GNU_SOURCE) && defined(__GLIBC__) && defined(__GLIBC_PREREQ)
+#if !__GLIBC_PREREQ(2, 26)
 void *reallocarray(void *ptr, size_t nmemb, size_t size);
 #endif
+#endif
 
 long long strtonum(const char *nptr, long long minval, long long maxval,
                    const char **errstr);
diff --git a/include/bsd/string.h b/include/bsd/string.h
index 6798bf6..6baaa14 100644
--- a/include/bsd/string.h
+++ b/include/bsd/string.h
@@ -37,6 +37,12 @@
 #include <sys/types.h>
 
 __BEGIN_DECLS
+#if defined(darwin) || defined(__APPLE__) || defined(MACOSX)
+size_t bsd_strlcpy(char *dst, const char *src, size_t siz);
+size_t bsd_strlcat(char *dst, const char *src, size_t siz);
+char *bsd_strnstr(const char *str, const char *find, size_t str_len);
+void bsd_strmode(mode_t mode, char *str);
+#else
 size_t strlcpy(char *dst, const char *src, size_t siz);
 size_t strlcat(char *dst, const char *src, size_t siz);
 char *strnstr(const char *str, const char *find, size_t str_len);
@@ -45,6 +51,7 @@ void strmode(mode_t mode, char *str);
 #if defined(_GNU_SOURCE) && defined(__GLIBC__) && !__GLIBC_PREREQ(2, 25)
 void explicit_bzero(void *buf, size_t len);
 #endif
+#endif
 __END_DECLS
 
 #endif
diff --git a/src/Makefile.am b/src/Makefile.am
index ad83dbf..0f2a7ee 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -54,17 +54,21 @@ libbsd_la_DEPENDENCIES = \
 	libbsd.map
 libbsd_la_LIBADD = \
 	$(CLOCK_GETTIME_LIBS)
+
+if IS_DARWIN
+libbsd_la_LDFLAGS = \
+	-Wl \
+	-version-number $(LIBBSD_ABI)
+else
 libbsd_la_LDFLAGS = \
 	-Wl,--version-script=$(srcdir)/libbsd.map \
 	-version-number $(LIBBSD_ABI)
+endif
+
 libbsd_la_SOURCES = \
 	arc4random.c \
-	arc4random.h \
-	arc4random_unix.h \
-	arc4random_openbsd.h \
 	arc4random_uniform.c \
 	bsd_getopt.c \
-	chacha_private.h \
 	closefrom.c \
 	dehumanize_number.c \
 	err.c \
@@ -117,6 +121,15 @@ libbsd_la_SOURCES += \
 	$(nil)
 endif
 
+noinst_HEADERS = \
+	arc4random.h \
+	arc4random_bsd.h \
+	arc4random_linux.h \
+	arc4random_unix.h \
+	arc4random_osx.h \
+	arc4random_openbsd.h \
+	chacha_private.h
+
 libbsd_ctor_a_SOURCES = \
 	setproctitle_ctor.c \
 	$(nil)
diff --git a/src/arc4random_bsd.h b/src/arc4random_bsd.h
new file mode 100644
index 0000000..ece2f85
--- /dev/null
+++ b/src/arc4random_bsd.h
@@ -0,0 +1,86 @@
+/*	$OpenBSD: arc4random_freebsd.h,v 1.2 2015/01/15 06:57:18 deraadt Exp $	*/
+
+/*
+ * Copyright (c) 1996, David Mazieres <dm@uun.org>
+ * Copyright (c) 2008, Damien Miller <djm@openbsd.org>
+ * Copyright (c) 2013, Markus Friedl <markus@openbsd.org>
+ * Copyright (c) 2014, Theo de Raadt <deraadt@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/*
+ * Stub functions for portability.
+ */
+
+#include <sys/mman.h>
+
+#include <pthread.h>
+#include <signal.h>
+
+static pthread_mutex_t arc4random_mtx = PTHREAD_MUTEX_INITIALIZER;
+#define _ARC4_LOCK()   pthread_mutex_lock(&arc4random_mtx)
+#define _ARC4_UNLOCK() pthread_mutex_unlock(&arc4random_mtx)
+
+/*
+ * Unfortunately, pthread_atfork() is broken on FreeBSD (at least 9 and 10) if
+ * a program does not link to -lthr. Callbacks registered with pthread_atfork()
+ * appear to fail silently. So, it is not always possible to detect a PID
+ * wraparound.
+ */
+#define _ARC4_ATFORK(f) pthread_atfork(NULL, NULL, (f))
+
+static inline void
+_getentropy_fail(void)
+{
+	raise(SIGKILL);
+}
+
+static volatile sig_atomic_t _rs_forked;
+
+static inline void
+_rs_forkhandler(void)
+{
+	_rs_forked = 1;
+}
+
+static inline void
+_rs_forkdetect(void)
+{
+	static pid_t _rs_pid = 0;
+	pid_t pid = getpid();
+
+	if (_rs_pid == 0 || _rs_pid != pid || _rs_forked) {
+		_rs_pid = pid;
+		_rs_forked = 0;
+		if (rs)
+			memset(rs, 0, sizeof(*rs));
+	}
+}
+
+static inline int
+_rs_allocate(struct _rs **rsp, struct _rsx **rsxp)
+{
+	if ((*rsp = mmap(NULL, sizeof(**rsp), PROT_READ|PROT_WRITE,
+	    MAP_ANON|MAP_PRIVATE, -1, 0)) == MAP_FAILED)
+		return (-1);
+
+	if ((*rsxp = mmap(NULL, sizeof(**rsxp), PROT_READ|PROT_WRITE,
+	    MAP_ANON|MAP_PRIVATE, -1, 0)) == MAP_FAILED) {
+		munmap(*rsp, sizeof(**rsp));
+		return (-1);
+	}
+
+	_ARC4_ATFORK(_rs_forkhandler);
+	return (0);
+}
diff --git a/src/arc4random_linux.h b/src/arc4random_linux.h
new file mode 100644
index 0000000..d61a8db
--- /dev/null
+++ b/src/arc4random_linux.h
@@ -0,0 +1,86 @@
+/*	$OpenBSD: arc4random_linux.h,v 1.8 2014/08/13 06:04:10 deraadt Exp $	*/
+
+/*
+ * Copyright (c) 1996, David Mazieres <dm@uun.org>
+ * Copyright (c) 2008, Damien Miller <djm@openbsd.org>
+ * Copyright (c) 2013, Markus Friedl <markus@openbsd.org>
+ * Copyright (c) 2014, Theo de Raadt <deraadt@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/*
+ * Stub functions for portability.
+ */
+
+#include <sys/mman.h>
+
+#include <pthread.h>
+#include <signal.h>
+
+static pthread_mutex_t arc4random_mtx = PTHREAD_MUTEX_INITIALIZER;
+#define _ARC4_LOCK()   pthread_mutex_lock(&arc4random_mtx)
+#define _ARC4_UNLOCK() pthread_mutex_unlock(&arc4random_mtx)
+
+#ifdef __GLIBC__
+extern void *__dso_handle;
+extern int __register_atfork(void (*)(void), void(*)(void), void (*)(void), void *);
+#define _ARC4_ATFORK(f) __register_atfork(NULL, NULL, (f), __dso_handle)
+#else
+#define _ARC4_ATFORK(f) pthread_atfork(NULL, NULL, (f))
+#endif
+
+static inline void
+_getentropy_fail(void)
+{
+	raise(SIGKILL);
+}
+
+static volatile sig_atomic_t _rs_forked;
+
+static inline void
+_rs_forkhandler(void)
+{
+	_rs_forked = 1;
+}
+
+static inline void
+_rs_forkdetect(void)
+{
+	static pid_t _rs_pid = 0;
+	pid_t pid = getpid();
+
+	if (_rs_pid == 0 || _rs_pid != pid || _rs_forked) {
+		_rs_pid = pid;
+		_rs_forked = 0;
+		if (rs)
+			memset(rs, 0, sizeof(*rs));
+	}
+}
+
+static inline int
+_rs_allocate(struct _rs **rsp, struct _rsx **rsxp)
+{
+	if ((*rsp = mmap(NULL, sizeof(**rsp), PROT_READ|PROT_WRITE,
+	    MAP_ANON|MAP_PRIVATE, -1, 0)) == MAP_FAILED)
+		return (-1);
+
+	if ((*rsxp = mmap(NULL, sizeof(**rsxp), PROT_READ|PROT_WRITE,
+	    MAP_ANON|MAP_PRIVATE, -1, 0)) == MAP_FAILED) {
+		munmap(*rsp, sizeof(**rsp));
+		return (-1);
+	}
+
+	_ARC4_ATFORK(_rs_forkhandler);
+	return (0);
+}
diff --git a/src/arc4random_osx.h b/src/arc4random_osx.h
new file mode 100644
index 0000000..14771a6
--- /dev/null
+++ b/src/arc4random_osx.h
@@ -0,0 +1,82 @@
+/*	$OpenBSD: arc4random_osx.h,v 1.10 2015/09/11 11:52:55 deraadt Exp $	*/
+
+/*
+ * Copyright (c) 1996, David Mazieres <dm@uun.org>
+ * Copyright (c) 2008, Damien Miller <djm@openbsd.org>
+ * Copyright (c) 2013, Markus Friedl <markus@openbsd.org>
+ * Copyright (c) 2014, Theo de Raadt <deraadt@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/*
+ * Stub functions for portability.
+ */
+
+#include <sys/mman.h>
+
+#include <unistd.h>
+#include <pthread.h>
+#include <signal.h>
+
+static pthread_mutex_t arc4random_mtx = PTHREAD_MUTEX_INITIALIZER;
+#define _ARC4_LOCK()   pthread_mutex_lock(&arc4random_mtx)
+#define _ARC4_UNLOCK() pthread_mutex_unlock(&arc4random_mtx)
+
+#define _ARC4_ATFORK(f) pthread_atfork(NULL, NULL, (f))
+
+static inline void
+_getentropy_fail(void)
+{
+	raise(SIGKILL);
+}
+
+static volatile sig_atomic_t _rs_forked;
+
+static inline void
+_rs_forkhandler(void)
+{
+	_rs_forked = 1;
+}
+
+static inline void
+_rs_forkdetect(void)
+{
+	static pid_t _rs_pid = 0;
+	pid_t pid = getpid();
+
+	if (_rs_pid == 0 || _rs_pid != pid || _rs_forked) {
+		_rs_pid = pid;
+		_rs_forked = 0;
+		if (rs)
+			memset(rs, 0, sizeof(*rs));
+	}
+}
+
+static inline int
+_rs_allocate(struct _rs **rsp, struct _rsx **rsxp)
+{
+	if ((*rsp = mmap(NULL, sizeof(**rsp), PROT_READ|PROT_WRITE,
+	    MAP_ANON|MAP_PRIVATE, -1, 0)) == MAP_FAILED)
+		return (-1);
+
+	if ((*rsxp = mmap(NULL, sizeof(**rsxp), PROT_READ|PROT_WRITE,
+	    MAP_ANON|MAP_PRIVATE, -1, 0)) == MAP_FAILED) {
+		munmap(*rsp, sizeof(**rsp));
+		*rsp = NULL;
+		return (-1);
+	}
+
+	_ARC4_ATFORK(_rs_forkhandler);
+	return (0);
+}
diff --git a/src/fgetln.c b/src/fgetln.c
index 4d1726e..9c73788 100644
--- a/src/fgetln.c
+++ b/src/fgetln.c
@@ -30,7 +30,9 @@
 #include <sys/types.h>
 #include <string.h>
 
+#if !defined(darwin) && !defined(__APPLE__) && !defined(MACOSX)
 #include "local-link.h"
+#endif
 
 #ifdef HAVE_GETLINE
 struct filebuf {
@@ -75,9 +77,11 @@ fgetln(FILE *stream, size_t *len)
 		return fb->buf;
 	}
 }
+#if !defined(darwin) && !defined(__APPLE__) && !defined(MACOSX)
 libbsd_link_warning(fgetln,
                     "This functions cannot be safely ported, use getline(3) "
                     "instead, as it is supported by GNU and POSIX.1-2008.")
+#endif
 #else
 #error "Function fgetln() needs to be ported."
 #endif
diff --git a/src/fpurge.c b/src/fpurge.c
index 462535a..e7eb46f 100644
--- a/src/fpurge.c
+++ b/src/fpurge.c
@@ -26,9 +26,11 @@
 
 #include <errno.h>
 #include <stdio.h>
+#if HAVE___FPURGE
 #include <stdio_ext.h>
+#endif
 
-#ifdef HAVE___FPURGE
+#ifdef HAVE___FPURGE                   /* glibc >= 2.2, Haiku, Solaris >= 7 */
 int
 fpurge(FILE *fp)
 {
@@ -42,5 +44,55 @@ fpurge(FILE *fp)
 	return 0;
 }
 #else
-#error "Function fpurge() needs to be ported."
+#define fp_ fp
+//#error "Function fpurge() needs to be ported."
+//#elif HAVE_FPURGE                   /* FreeBSD, NetBSD, OpenBSD, DragonFly, Mac OS X, Cygwin 1.7 */
+int
+fpurge(FILE *fp)
+{
+	if (fp == NULL || fileno(fp) < 0) {
+		errno = EBADF;
+		return EOF;
+	}
+
+  /* Call the system's fpurge function.  */
+# undef fpurge
+# if !HAVE_DECL_FPURGE
+  extern int fpurge (FILE *);
+# endif
+  int result = fpurge (fp);
+# if defined __sferror || defined __DragonFly__ /* FreeBSD, NetBSD, OpenBSD, DragonFly, Mac OS X, Cygwin */
+  if (result == 0)
+    /* Correct the invariants that fpurge broke.
+       <stdio.h> on BSD systems says:
+         "The following always hold: if _flags & __SRD, _w is 0."
+       If this invariant is not fulfilled and the stream is read-write but
+       currently reading, subsequent putc or fputc calls will write directly
+       into the buffer, although they shouldn't be allowed to.  */
+    if ((fp_->_flags & __SRD) != 0)
+      fp_->_w = 0;
+#endif
+  return result;
+}
+//#endif
+#endif
+
+#ifdef TEST
+int
+main()
+{
+	static FILE fp_bad;
+	FILE *fp;
+
+	if (fpurge(&fp_bad) == 0)
+		return 1;
+
+	fp = fopen("/dev/zero", "r");
+	if (fpurge(fp) < 0)
+		return 1;
+
+	fclose(fp);
+
+	return 0;
+}
 #endif
diff --git a/src/funopen.c b/src/funopen.c
index 1e05c7e..75e61ea 100644
--- a/src/funopen.c
+++ b/src/funopen.c
@@ -143,6 +143,7 @@ funopen(const void *cookie,
  * they will not add the needed support to implement it. Just ignore this
  * interface there, as it has never been provided anyway.
  */
+#elif defined(darwin) || defined(__APPLE__) || defined(MACOSX)
 #else
 #error "Function funopen() needs to be ported or disabled."
 #endif
diff --git a/src/getentropy.c b/src/getentropy.c
index 3f11a1e..8a23a07 100644
--- a/src/getentropy.c
+++ b/src/getentropy.c
@@ -28,9 +28,7 @@
 #include "getentropy_linux.c"
 #elif defined(__GNU__)
 #include "getentropy_hurd.c"
-#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
-#include "getentropy_bsd.c"
-#elif defined(__NetBSD__)
+#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__NetBSD__)
 #include "getentropy_bsd.c"
 #elif defined(__sun)
 #include "getentropy_solaris.c"
diff --git a/src/hash/sha512.h b/src/hash/sha512.h
index 4f368a1..ab22fc1 100644
--- a/src/hash/sha512.h
+++ b/src/hash/sha512.h
@@ -29,7 +29,11 @@
 #ifndef _SHA512_H_
 #define _SHA512_H_
 
+#if defined(darwin) || defined(__APPLE__) || defined(MACOSX)
+#include <stdint.h>
+#else
 #include <sys/types.h>
+#endif
 
 #define SHA512_DIGEST_LENGTH		64
 
diff --git a/src/hash/sha512c.c b/src/hash/sha512c.c
index b3c8d5e..f69013d 100644
--- a/src/hash/sha512c.c
+++ b/src/hash/sha512c.c
@@ -25,7 +25,13 @@
  */
 
 #include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#if defined(darwin) || defined(__APPLE__) || defined(MACOSX)
+#include <machine/endian.h>
+#else
 #include <sys/endian.h>
+#endif
 #include <sys/types.h>
 
 #include <string.h>
diff --git a/src/nlist.c b/src/nlist.c
index 0932f59..598a329 100644
--- a/src/nlist.c
+++ b/src/nlist.c
@@ -27,6 +27,10 @@
  * SUCH DAMAGE.
  */
 
+#if !defined(darwin) && !defined(__APPLE__) && !defined(MACOSX)
+#if defined(LIBC_SCCS) && !defined(lint)
+static char sccsid[] = "@(#)nlist.c	8.1 (Berkeley) 6/4/93";
+#endif /* LIBC_SCCS and not lint */
 #include <sys/cdefs.h>
 
 #include <sys/param.h>
@@ -265,3 +269,4 @@ nlist(const char *name, struct nlist *list)
 	(void)close(fd);
 	return (n);
 }
+#endif /* _NLIST_DO_ELF */
diff --git a/src/setproctitle.c b/src/setproctitle.c
index 038ac7d..d0ef01b 100644
--- a/src/setproctitle.c
+++ b/src/setproctitle.c
@@ -32,6 +32,11 @@
 #include <unistd.h>
 #include <string.h>
 
+#if defined(darwin) || defined(__APPLE__) || defined(MACOSX)
+#define __asm__(x)
+extern char **environ;
+#endif
+
 static struct {
 	/* Original value. */
 	const char *arg0;
@@ -287,7 +292,14 @@ __asm__(".symver setproctitle_impl,setproctitle@@LIBBSD_0.5");
  * for code linking against that version, and change the default to use the
  * new version, so that new code depends on the implemented version. */
 #ifdef HAVE_TYPEOF
+#if defined(darwin) || defined(__APPLE__) || defined(MACOSX)
+//
+// HACK: even weak aliasing breaks in clang so just comment this out for now
+//
+// extern typeof(setproctitle_impl) setproctitle_stub __attribute__((weak, alias("setproctitle_impl")));
+#else
 extern typeof(setproctitle_impl) setproctitle_stub __attribute__((alias("setproctitle_impl")));
+#endif
 #else
 void setproctitle_stub(const char *fmt, ...)
 	__attribute__((alias("setproctitle_impl")));
diff --git a/src/strlcat.c b/src/strlcat.c
index 14c53a1..e01cb60 100644
--- a/src/strlcat.c
+++ b/src/strlcat.c
@@ -27,7 +27,11 @@
  * If retval >= dsize, truncation occurred.
  */
 size_t
+#if defined(darwin) || defined(__APPLE__) || defined(MACOSX)
+bsd_strlcat(char *dst, const char *src, size_t dsize)
+#else
 strlcat(char *dst, const char *src, size_t dsize)
+#endif
 {
 	const char *odst = dst;
 	const char *osrc = src;
diff --git a/src/strlcpy.c b/src/strlcpy.c
index e9a7fe4..10a855f 100644
--- a/src/strlcpy.c
+++ b/src/strlcpy.c
@@ -25,7 +25,11 @@
  * Returns strlen(src); if retval >= dsize, truncation occurred.
  */
 size_t
+#if defined(darwin) || defined(__APPLE__) || defined(MACOSX)
+bsd_strlcpy(char *dst, const char *src, size_t dsize)
+#else
 strlcpy(char *dst, const char *src, size_t dsize)
+#endif
 {
 	const char *osrc = src;
 	size_t nleft = dsize;
diff --git a/src/strmode.c b/src/strmode.c
index e6afde5..c463243 100644
--- a/src/strmode.c
+++ b/src/strmode.c
@@ -33,7 +33,11 @@
 #include <string.h>
 
 void
+#if defined(darwin) || defined(__APPLE__) || defined(MACOSX)
+bsd_strmode(mode_t mode, char *p)
+#else
 strmode(mode_t mode, char *p)
+#endif
 {
 	 /* print type */
 	switch (mode & S_IFMT) {