initial version of autotool-ized build system

Makefile.am

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+AUTOMAKE_OPTIONS=foreign no-dependencies
+SUBDIRS=src include

build.mk

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+
+SUPPRESS_WARNINGS = 2>&1 | (egrep -v '(AC_TRY_RUN called without default to allow cross compiling|AC_PROG_CXXCPP was called before AC_PROG_CXX|defined in acinclude.m4 but never used|AC_PROG_LEX invoked multiple times|AC_DECL_YYTEXT is expanded from...|the top level)'||true)
+
+AUTOCONF ?= 'autoconf'
+ACLOCAL ?= 'aclocal'
+AUTOHEADER ?= 'autoheader'
+AUTOMAKE ?= 'automake'
+AUTOUPDATE ?= 'autoupdate'
+
+config_h_in = src/hpdf_config.h.in
+targets = $(config_h_in) configure makefiles
+
+all: $(targets)
+
+aclocal.m4:
+	$(ACLOCAL)
+
+$(config_h_in): configure
+	@echo rebuilding $@
+	@rm -f $@
+	$(AUTOHEADER) $(SUPPRESS_WARNINGS)
+
+configure: aclocal.m4 configure.in
+	@echo rebuilding $@
+	$(AUTOUPDATE)
+	$(AUTOCONF) $(SUPPRESS_WARNINGS)
+
+makefiles: configure Makefile.am src/Makefile.am
+	@echo rebuilding Makefile.in files
+	$(AUTOMAKE) --add-missing --copy
+
+cvsclean:
+	@rm -rf src/*.lo src/*.la src/*.o src/*.a src/.libs src/Makefile src/Makefile.in include/Makefile include/Makefile.in 
+	rm -rf src/stamp-h1 src/test include/hpdf_config.h* include/stamp-h1
+	rm -rf aclocal.m4 autom4te.cache install.sh libtool Makefile Makefile.in 'configure.in~' missing config.h* configure
+	rm -f config.guess config.log config.status config.sub cscope.out install-sh
+

buildconf.sh

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+#!/bin/sh
+
+eval `grep '^HPDF_EXTRA_VERSION=' configure.in`
+case "$HPDF_EXTRA_VERSION" in
+  *-dev)
+    rebuildok=1
+    ;;
+  *)
+    rebuildok=0
+    ;;
+esac
+
+cvsclean=0
+
+while test $# -gt 0; do
+  if test "$1" = "--force"; then
+    rebuildok=1
+    echo "Forcing buildconf"
+  fi
+  if test "$1" = "--clean"; then
+    cvsclean=1
+  fi
+  shift
+done
+
+if test "$rebuildok" = "0"; then
+  echo "You should not run buildconf in a release package."
+  echo "use buildconf --force to override this check."
+  exit 1
+fi
+
+if test "$cvsclean" = "1"; then
+	echo "Cleaning autogenerated files"
+	${MAKE:-make} -s -f build.mk cvsclean
+else 
+	${MAKE:-make} -s -f build.mk
+fi
+