diff --git a/CMakeLists.txt b/CMakeLists.txt
index 628812d5..4c50cc56 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -269,6 +269,11 @@ if(CMAKE_SYSTEM_NAME STREQUAL "GNU")
        src/unix/hurd.c)
 endif()
 
+if(CMAKE_SYSTEM_NAME STREQUAL "kFreeBSD")
+  list(APPEND uv_defines _GNU_SOURCE)
+  list(APPEND uv_libraries dl freebsd-glue)
+endif()
+
 if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
   list(APPEND uv_defines _GNU_SOURCE _POSIX_C_SOURCE=200112)
   list(APPEND uv_libraries dl rt)
diff --git a/Makefile.am b/Makefile.am
index 895dba51..32fccede 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -464,6 +464,10 @@ libuv_la_SOURCES += src/unix/bsd-ifaddrs.c \
                     src/unix/hurd.c
 endif
 
+if KFREEBSD
+libuv_la_CFLAGS += -D_GNU_SOURCE
+endif
+
 if LINUX
 uvinclude_HEADERS += include/uv/linux.h
 libuv_la_CFLAGS += -D_GNU_SOURCE
diff --git a/configure.ac b/configure.ac
index 1c2a026a..a9012d40 100644
--- a/configure.ac
+++ b/configure.ac
@@ -60,6 +60,7 @@ AM_CONDITIONAL([CYGWIN],   [AS_CASE([$host_os],[cygwin*],       [true], [false])
 AM_CONDITIONAL([DARWIN],   [AS_CASE([$host_os],[darwin*],       [true], [false])])
 AM_CONDITIONAL([DRAGONFLY],[AS_CASE([$host_os],[dragonfly*],    [true], [false])])
 AM_CONDITIONAL([FREEBSD],  [AS_CASE([$host_os],[*freebsd*],     [true], [false])])
+AM_CONDITIONAL([KFREEBSD], [AS_CASE([$host_os],[kfreebsd*],     [true], [false])])
 AM_CONDITIONAL([HAIKU],    [AS_CASE([$host_os],[haiku],         [true], [false])])
 AM_CONDITIONAL([HURD],     [AS_CASE([$host_os],[gnu*],          [true], [false])])
 AM_CONDITIONAL([LINUX],    [AS_CASE([$host_os],[linux*],        [true], [false])])