Merge pull request #1804 from rubenk/conditionalize-lua

Only add LUA_CFLAGS and LUA_LIBS if we have lua

diff --cc pdns/Makefile.am
index 935b827ef0f5174ffa958df279016116cda5b35a,7dfcfb279dc421eceab4a891f1e00882584e01b7..0dfe883c1ad1c9fd538d1d06e20840348fdb0652
--- 1/pdns/Makefile.am
--- 2/pdns/Makefile.am
+++ b/pdns/Makefile.am
@@@ -6,9 -6,10 +6,8 @@@ AM_CXXFLAGS = 
        -DSYSCONFDIR=\"$(sysconfdir)\" \
        -DPKGLIBDIR=\"$(pkglibdir)\" \
        -DLOCALSTATEDIR=\"$(socketdir)\" \
-       $(LUA_CFLAGS) \
        $(POLARSSL_CFLAGS)
  
 -YAHTTP_LIBS = -Lext/yahttp/yahttp -lyahttp
 -
  AM_LFLAGS = -i
  AM_YFLAGS = -d --verbose --debug