Stop linking with -lnsl on Linux

As far as I know on Linux libnsl is used only for NIS/NIS+ support.
It is highly unlikey that Rspamd users use NIS in 2018.

Keep linking with libnsl on Solaris - there it is likely needed even if
NIS is not used.

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4f4eb9a00e665921d8cff75a9268bcc92067debd..0aa91aa579644e01294d5e3c8d58a90b4a0ff8bc 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -564,7 +564,6 @@ IF(CMAKE_SYSTEM_NAME STREQUAL "Linux")
        LIST(APPEND CMAKE_REQUIRED_LIBRARIES rt)
        LIST(APPEND CMAKE_REQUIRED_LIBRARIES dl)
        LIST(APPEND CMAKE_REQUIRED_LIBRARIES resolv)
-       LIST(APPEND CMAKE_REQUIRED_LIBRARIES nsl)
        MESSAGE(STATUS "Configuring for Linux")
        IF(EXISTS "/etc/debian_version")
                SET(LINUX_START_SCRIPT "rspamd_debian.in")