Rename configure.in to configure.ac.

This matches what was done with libpcap; it's what autoconf prefers.

Author: guyharris

Diff for: INSTALL.txt

@@ -63,7 +63,7 @@ config.guess	- autoconf support
 config.h.in	- autoconf input
 config.sub	- autoconf support
 configure	- configure script (run this first)
-configure.in	- configure script source
+configure.ac	- configure script source
 ether.h		- Ethernet definitions
 ethertype.h	- Ethernet type value definitions
 extract.h	- alignment definitions

Diff for: Makefile-devel-adds

@@ -2,12 +2,12 @@
 # Auto-regenerate configure script or Makefile when things change.
 # From autoconf.info .  Works best with GNU Make.
 #
-${srcdir}/configure: configure.in aclocal.m4
+${srcdir}/configure: configure.ac aclocal.m4
 	cd ${srcdir} && autoconf
 
 # autoheader might not change config.h.in, so touch a stamp file.
 ${srcdir}/config.h.in: ${srcdir}/stamp-h.in
-${srcdir}/stamp-h.in: configure.in aclocal.m4
+${srcdir}/stamp-h.in: configure.ac aclocal.m4
 	cd ${srcdir} && autoheader
 	echo timestamp > ${srcdir}/stamp-h.in
 

Diff for: Makefile.in

@@ -333,7 +333,7 @@ EXTRA_DIST = \
 	config.h.in \
 	config.sub \
 	configure \
-	configure.in \
+	configure.ac \
 	install-sh \
 	lbl/os-osf4.h \
 	lbl/os-solaris2.h \

Diff for: config.h.in

@@ -1,4 +1,4 @@
-/* config.h.in.  Generated from configure.in by autoheader.  */
+/* config.h.in.  Generated from configure.ac by autoheader.  */
 
 /* define if you want to build the possibly-buggy SMB printer */
 #undef ENABLE_SMB