diff --git a/Makefile b/Makefile
index 3e1efc7646a79a07c98188ede010107c84c05e4c..9a8604566643b411675dccbede8e5634abfca68a 100644
--- a/Makefile
+++ b/Makefile
@@ -272,7 +272,10 @@ else
 IS_GIT_FOLDER = true
 endif
 
-OPENSSL_ALPN_CHECK_CMD = $(CC) $(CFLAGS) $(CPPFLAGS) -o $(TMPOUT) test/build/openssl-alpn.c -lssl -lcrypto -ldl $(LDFLAGS)
+OPENSSL_ALPN_CHECK_CMD = $(CC) $(CFLAGS) $(CPPFLAGS) -o $(TMPOUT) test/build/openssl-alpn.c -lssl -lcrypto $(LDFLAGS)
+ifeq ($(SYSTEM),Linux)
+OPENSSL_ALPN_CHECK_CMD += -ldl
+endif
 ZLIB_CHECK_CMD = $(CC) $(CFLAGS) $(CPPFLAGS) -o $(TMPOUT) test/build/zlib.c -lz $(LDFLAGS)
 PERFTOOLS_CHECK_CMD = $(CC) $(CFLAGS) $(CPPFLAGS) -o $(TMPOUT) test/build/perftools.c -lprofiler $(LDFLAGS)
 PROTOBUF_CHECK_CMD = $(CXX) $(CXXFLAGS) $(CPPFLAGS) -o $(TMPOUT) test/build/protobuf.cc -lprotobuf $(LDFLAGS)
@@ -344,12 +347,17 @@ OPENSSL_MERGE_LIBS += $(LIBDIR)/$(CONFIG)/openssl/libssl.a $(LIBDIR)/$(CONFIG)/o
 # need to prefix these to ensure overriding system libraries
 CPPFLAGS := -Ithird_party/openssl/include $(CPPFLAGS)
 LDFLAGS := -L$(LIBDIR)/$(CONFIG)/openssl $(LDFLAGS)
+ifeq ($(SYSTEM),Linux)
 LIBS_SECURE = dl
+endif
 else
 NO_SECURE = true
 endif
 else
-LIBS_SECURE = ssl crypto dl
+LIBS_SECURE = ssl crypto
+ifeq ($(SYSTEM),Linux)
+LIBS_SECURE += dl
+endif
 endif
 
 LDLIBS_SECURE += $(addprefix -l, $(LIBS_SECURE))
diff --git a/include/grpc/support/port_platform.h b/include/grpc/support/port_platform.h
index f04c2e76afadbefce4574b748b8796f3381db391..17f2851f923c49b470de5f45234d77cc58d10560 100644
--- a/include/grpc/support/port_platform.h
+++ b/include/grpc/support/port_platform.h
@@ -137,6 +137,30 @@
 #else /* _LP64 */
 #define GPR_ARCH_32 1
 #endif /* _LP64 */
+#elif defined(__FreeBSD__)
+#ifndef _BSD_SOURCE
+#define _BSD_SOURCE
+#endif
+#define GPR_CPU_POSIX 1
+#define GPR_GCC_ATOMIC 1
+#define GPR_POSIX_LOG 1
+#define GPR_POSIX_MULTIPOLL_WITH_POLL 1
+#define GPR_POSIX_WAKEUP_FD 1
+#define GPR_POSIX_NO_SPECIAL_WAKEUP_FD 1
+#define GPR_POSIX_SOCKET 1
+#define GPR_POSIX_SOCKETADDR 1
+#define GPR_POSIX_SOCKETUTILS 1
+#define GPR_POSIX_ENV 1
+#define GPR_POSIX_FILE 1
+#define GPR_POSIX_STRING 1
+#define GPR_POSIX_SYNC 1
+#define GPR_POSIX_TIME 1
+#define GPR_GETPID_IN_UNISTD_H 1
+#ifdef _LP64
+#define GPR_ARCH_64 1
+#else /* _LP64 */
+#define GPR_ARCH_32 1
+#endif /* _LP64 */
 #else
 #error Could not auto-detect platform
 #endif
diff --git a/templates/Makefile.template b/templates/Makefile.template
index a69c7a7f2f1cf6689d34665c9a23ac24851af196..621b008161ff0e9d836dc01d03f725f4ef5879f8 100644
--- a/templates/Makefile.template
+++ b/templates/Makefile.template
@@ -289,7 +289,10 @@ else
 IS_GIT_FOLDER = true
 endif
 
-OPENSSL_ALPN_CHECK_CMD = $(CC) $(CFLAGS) $(CPPFLAGS) -o $(TMPOUT) test/build/openssl-alpn.c -lssl -lcrypto -ldl $(LDFLAGS)
+OPENSSL_ALPN_CHECK_CMD = $(CC) $(CFLAGS) $(CPPFLAGS) -o $(TMPOUT) test/build/openssl-alpn.c -lssl -lcrypto $(LDFLAGS)
+ifeq ($(SYSTEM),Linux)
+OPENSSL_ALPN_CHECK_CMD += -ldl
+endif
 ZLIB_CHECK_CMD = $(CC) $(CFLAGS) $(CPPFLAGS) -o $(TMPOUT) test/build/zlib.c -lz $(LDFLAGS)
 PERFTOOLS_CHECK_CMD = $(CC) $(CFLAGS) $(CPPFLAGS) -o $(TMPOUT) test/build/perftools.c -lprofiler $(LDFLAGS)
 PROTOBUF_CHECK_CMD = $(CXX) $(CXXFLAGS) $(CPPFLAGS) -o $(TMPOUT) test/build/protobuf.cc -lprotobuf $(LDFLAGS)
@@ -361,12 +364,17 @@ OPENSSL_MERGE_LIBS += $(LIBDIR)/$(CONFIG)/openssl/libssl.a $(LIBDIR)/$(CONFIG)/o
 # need to prefix these to ensure overriding system libraries
 CPPFLAGS := -Ithird_party/openssl/include $(CPPFLAGS)
 LDFLAGS := -L$(LIBDIR)/$(CONFIG)/openssl $(LDFLAGS)
+ifeq ($(SYSTEM),Linux)
 LIBS_SECURE = dl
+endif
 else
 NO_SECURE = true
 endif
 else
-LIBS_SECURE = ssl crypto dl
+LIBS_SECURE = ssl crypto
+ifeq ($(SYSTEM),Linux)
+LIBS_SECURE += dl
+endif
 endif
 
 LDLIBS_SECURE += $(addprefix -l, $(LIBS_SECURE))
diff --git a/test/core/end2end/gen_build_json.py b/test/core/end2end/gen_build_json.py
index 67fc0a6e539457c4a914d6a24b028b0db187c0ac..23349daafe8783274736f972c87857b41cdca692 100755
--- a/test/core/end2end/gen_build_json.py
+++ b/test/core/end2end/gen_build_json.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python2.7
+#!/usr/bin/env python
 # Copyright 2015, Google Inc.
 # All rights reserved.
 #
diff --git a/test/core/iomgr/tcp_server_posix_test.c b/test/core/iomgr/tcp_server_posix_test.c
index 2689c3f38e5ba94a32b1ba15007fe6c954460602..708444a2872f35764f372db05dc6075aebfa2905 100644
--- a/test/core/iomgr/tcp_server_posix_test.c
+++ b/test/core/iomgr/tcp_server_posix_test.c
@@ -38,6 +38,7 @@
 #include <grpc/support/time.h>
 #include "test/core/util/test_config.h"
 
+#include <sys/socket.h>
 #include <netinet/in.h>
 #include <string.h>
 #include <unistd.h>
diff --git a/tools/buildgen/build-cleaner.py b/tools/buildgen/build-cleaner.py
index 1d9157aad7df67df66b7aa3bf6f3720f29d72f26..6c5355bce39964547a6a0605037c87129a86eab4 100755
--- a/tools/buildgen/build-cleaner.py
+++ b/tools/buildgen/build-cleaner.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python
+#!/usr/bin/env python
 # Copyright 2015, Google Inc.
 # All rights reserved.
 #
diff --git a/tools/buildgen/generate_projects.sh b/tools/buildgen/generate_projects.sh
index 7a12440db2c0b277a5ade6d8c7b131409953c2d5..45f08df38fecbb18491a4547a41dd1863bd56030 100755
--- a/tools/buildgen/generate_projects.sh
+++ b/tools/buildgen/generate_projects.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 # Copyright 2015, Google Inc.
 # All rights reserved.
 #
@@ -31,7 +31,7 @@
 
 set -e
 
-if [ "x$TEST" == "x" ] ; then
+if [ "x$TEST" = "x" ] ; then
   TEST=false
 fi
 
@@ -61,12 +61,12 @@ for dir in . ; do
     out=${out%.*}  # strip template extension
     json_files="build.json $end2end_test_build"
     data=`for i in $json_files; do echo -n "-d $i "; done`
-    if [ $TEST == true ] ; then
+    if [ "x$TEST" = "xtrue" ] ; then
       actual_out=$out
       out=`mktemp /tmp/gentXXXXXX`
     fi
     $mako_renderer $plugins $data -o $out $file
-    if [ $TEST == true ] ; then
+    if [ "x$TEST" = "xtrue" ] ; then
       diff -q $out $actual_out
       rm $out
     fi
diff --git a/tools/buildgen/mako_renderer.py b/tools/buildgen/mako_renderer.py
index f0dc818c0c0e6fcd79bc8405412634e1e32f55bf..534377e69ecbefe591c3b19b260ed2768fcc0492 100755
--- a/tools/buildgen/mako_renderer.py
+++ b/tools/buildgen/mako_renderer.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python2.7
+#!/usr/bin/env python
 # Copyright 2015, Google Inc.
 # All rights reserved.
 #
diff --git a/tools/run_tests/run_tests.py b/tools/run_tests/run_tests.py
index aee19cdc42d6ec9b106ce39d045dc679922584a7..338f564948664c36fabd5b6d5b548e84a5789d48 100755
--- a/tools/run_tests/run_tests.py
+++ b/tools/run_tests/run_tests.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python2.7
+#!/usr/bin/env python
 # Copyright 2015, Google Inc.
 # All rights reserved.
 #