Rewrite old messy autotools configure.ac hell. Try to make it clean and remove old

stuff not needed. Fix errors, make library search more automatic and reliable.
Add more comments and structure.
Add nfdump.pc.in pkg-config config for nfump libraries.
Autoconf and me - did not become best friends ...

Author: phaag

Makefile.am

@@ -4,22 +4,24 @@ SUBDIRS = src/libnffile src/libnfdump src/output src/netflow src/collector src/m
 SUBDIRS += src/nfdump src/nfcapd  
 SUBDIRS += src/nfanon src/nfexpire src/nfreplay . src src/test src/nfreader src/inline src/include
 
-if SFLOW
 SUBDIRS += src/sflow
-endif
 
-if FT2NFDUMP
+if BUILD_FT2NFDUMP
 SUBDIRS += src/ft2nfdump
 endif
 
-if BUILDNFPCAPD
+if BUILD_NFPCAPD
 SUBDIRS += src/nfpcapd
 endif
 
-if NFPROFILE
+if BUILD_NFPROFILE
 SUBDIRS += src/nfsen
 endif
 
 SUBDIRS += man doc
 
-EXTRA_DIST = extra/CreateSubHierarchy.pl LICENSE BSD-license.txt extra/PortTracker.pm extra/nfdump.spec bootstrap
+pkgconfigdir = $(libdir)/pkgconfig
+pkgconfig_DATA = nfdump.pc
+
+EXTRA_DIST = LICENSE BSD-license.txt bootstrap nfdump.pc.in
+EXTRA_DIST += extra/CreateSubHierarchy.pl extra/PortTracker.pm extra/nfdump.spec