diff --git a/auto/configure b/auto/configure
index 8ef3a9aca..4a67088ba 100755
--- a/auto/configure
+++ b/auto/configure
@@ -52,7 +52,6 @@ fi
 
 if [ "$NGX_PLATFORM" != win32 ]; then
     . auto/os/features
-    . auto/threads
     . auto/unix
 fi
 
diff --git a/auto/threads b/auto/threads
deleted file mode 100644
index 29bc72476..000000000
--- a/auto/threads
+++ /dev/null
@@ -1,70 +0,0 @@
-
-# Copyright (C) Igor Sysoev
-
-
-case $USE_THREADS in
-    rfork)
-        have=NGX_THREADS . auto/have
-        have=NGX_USE_RFORK . auto/have
-        CORE_DEPS="$CORE_DEPS $FREEBSD_RFORK_DEPS"
-        CORE_SRCS="$CORE_SRCS $FREEBSD_RFORK_SRCS"
-
-        case "$NGX_PLATFORM" in
-            *:i386)
-                if [ \( $version -gt 500000 -a $version -lt 501000 \) \
-                     -o $version -lt 491000 ]
-                then
-                    CORE_SRCS="$CORE_SRCS $FREEBSD_RFORK_THREAD_SRCS"
-                fi
-            ;;
-        esac
-    ;;
-
-    pthreads)
-        have=NGX_THREADS . auto/have
-        CORE_SRCS="$CORE_SRCS $PTHREAD_SRCS"
-        CORE_LIBS="$CORE_LIBS -lpthread"
-    ;;
-
-    libthr)
-        have=NGX_THREADS . auto/have
-        CORE_SRCS="$CORE_SRCS $PTHREAD_SRCS"
-        CORE_LIBS="$CORE_LIBS -lthr"
-    ;;
-
-    linuxthreads)
-        have=NGX_THREADS . auto/have
-        have=NGX_LINUXTHREADS . auto/have
-        CFLAGS="$CFLAGS -D_THREAD_SAFE"
-        CFLAGS="$CFLAGS -I /usr/local/include/pthread/linuxthreads"
-        CORE_SRCS="$CORE_SRCS $PTHREAD_SRCS"
-        CORE_LIBS="$CORE_LIBS -L /usr/local/lib -llthread -llgcc_r"
-    ;;
-
-    libc_r)
-        case "$NGX_PLATFORM" in
-            FreeBSD:[34]*)
-                have=NGX_THREADS . auto/have
-                CFLAGS="$CFLAGS -pthread"
-                CORE_SRCS="$CORE_SRCS $PTHREAD_SRCS"
-                CORE_LIBS="$CORE_LIBS -pthread"
-            ;;
-
-            FreeBSD:[56]*)
-                have=NGX_THREADS . auto/have
-                CORE_SRCS="$CORE_SRCS $PTHREAD_SRCS"
-                CORE_LIBS="$CORE_LIBS -lc_r"
-            ;;
-        esac
-    ;;
-
-    NO)
-    ;;
-
-    *)
-        have=NGX_THREADS . auto/have
-        CORE_SRCS="$CORE_SRCS $PTHREAD_SRCS"
-        CORE_LIBS="$CORE_LIBS -l$USE_THREADS"
-    ;;
-
-esac