component/trafficserver: Version up to 8.1.0

Require minially gcc 8 for C++17 support

component/trafficserver/buildout.cfg

 [buildout]
 extends =
+  ../defaults.cfg
   ../libtool/buildout.cfg
   ../libxml2/buildout.cfg
   ../make/buildout.cfg
@@ -14,10 +15,15 @@ extends =
 parts =
   trafficserver
 
+[gcc]
+# For ATS v8.0.0 and later, a compiler with support for C++17 is required. 
+# https://cwiki.apache.org/confluence/display/TS/Building
+min_version = 8
+
 [trafficserver]
 recipe = slapos.recipe.cmmi
-url = http://apache.claz.org/trafficserver/trafficserver-7.1.11.tar.bz2
-md5sum = 74e8c1e2d7cdc0b97420d8b813321258
+url = http://apache.claz.org/trafficserver/trafficserver-8.1.0.tar.bz2
+md5sum = 99bfeb61095e55cb151ef58d884cb3f1
 shared = true
 configure-options =
   --with-openssl=${openssl:location}
@@ -33,6 +39,7 @@ configure-options =
 environment =
   PATH=${libtool:location}/bin:${make:location}/bin:${perl:location}/bin:${pkgconfig:location}/bin:%(PATH)s
   LDFLAGS =-L${openssl:location}/lib -Wl,-rpath=${openssl:location}/lib -L${tcl:location}/lib -Wl,-rpath=${tcl:location}/lib -L${zlib:location}/lib -Wl,-rpath=${zlib:location}/lib
+  
 make-target =
   check
   install