diff --git a/.gitignore b/.gitignore
index 33f4a1a..4e16b85 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,3 +3,12 @@
 /iast
 /tests/test
 *.1.gz
+
+/Makefile
+/configure
+/aclocal.m4
+/install-sh
+/config.h*
+/*.status
+/*.cache
+/*.log
diff --git a/Makefile b/Makefile
deleted file mode 100644
index 60ab116..0000000
--- a/Makefile
+++ /dev/null
@@ -1,51 +0,0 @@
-SHELL        = /bin/sh
-CC           = gcc
-
-PREFIX       = /usr/local
-BINDIR       = $(PREFIX)/bin
-MANDIR       = $(PREFIX)/share/man
-
-OBJECTS      = iast.o iast-czech.o transliteration.o transcription.o utf8.o velthuis.o
-TEST_OBJECTS = tests/main.o tests/translit.o tests/transcript.o tests/velthuis.o
-CFLAGS       = -Wall
-LIBS         =
-
-TEST_CFLAGS  = $(CFLAGS) $(shell pkg-config --cflags check)
-TEST_LIBS    = $(shell pkg-config --libs check)
-
-
-.PHONY: all main test install uninstall clean
-
-all: iast iast.1.gz
-
-include $(wildcard *.d)
-
-iast: main.o $(OBJECTS)
-	$(CC) $^ -o $@ $(CFLAGS)
-
-test: iast tests/test
-	tests/test
-	sh tests/integration.sh
-
-%.o: %.c
-	$(CC) -MMD -MP -c $< -o $@ $(CFLAGS)
-
-tests/%.o: tests/%.c
-	$(CC) -MMD -MP -c $< -o $@ $(TEST_CFLAGS) $(TEST_LIBS)
-
-tests/test: $(OBJECTS) $(TEST_OBJECTS)
-	$(CC) $^ -o $@ $(TEST_CFLAGS) $(TEST_LIBS)
-
-%.1.gz: %.1
-	cat $< | gzip -f >$@
-
-install:
-	install -m 0755 iast $(BINDIR)
-	install -m 644 iast.1.gz $(MANDIR)/man1
-
-uninstall:
-	rm -f $(BINDIR)/iast
-	rm -f $(MANDIR)/man1/iast.1.gz
-
-clean:
-	$(RM) iast tests/test *.o */*.o *.d */*.d *.1.gz
diff --git a/Makefile.in b/Makefile.in
new file mode 100644
index 0000000..6c3fb33
--- /dev/null
+++ b/Makefile.in
@@ -0,0 +1,72 @@
+PROGNAME = @PROGNAME@
+
+CC              = @CC@
+INSTALL         = @INSTALL@
+INSTALL_DATA    = @INSTALL_DATA@
+INSTALL_PROGRAM = @INSTALL_PROGRAM@
+MKDIR_P         = @MKDIR_P@
+
+prefix      = @prefix@
+exec_prefix = @exec_prefix@
+bindir      = @bindir@
+datarootdir = @datarootdir@
+mandir      = @mandir@
+
+CFLAGS = -Wall @CFLAGS@
+LFLAGS =
+
+TEST_CFLAGS = @CFLAGS@ @CHECK_CFLAGS@
+TEST_LFLAGS = @CHECK_LIBS@
+
+OBJECTS = iast.o iast-czech.o transliteration.o transcription.o utf8.o velthuis.o
+TEST_OBJECTS = tests/main.o tests/translit.o tests/transcript.o tests/velthuis.o
+
+AUX_FILES = Makefile configure aclocal.m4 install-sh config.h* *.log	\
+	*.status *.cache
+
+all: $(PROGNAME) tests/test $(PROGNAME).1.gz
+
+include $(wildcard *.d tests/*.d)
+
+$(PROGNAME): main.o $(OBJECTS)
+	$(QUIET_LD) $(CC) $^ -o $@ $(LFLAGS)
+
+test: all
+	tests/test
+
+%.o: %.c
+	$(QUIET_CC) $(CC) -MMD -MP -c $< -o $@ $(CFLAGS)
+
+tests/%.o: tests/%.c
+	$(QUIET_CC) $(CC) -MMD -MP -c $< -o $@ $(TEST_CFLAGS)
+
+tests/test: $(OBJECTS) $(TEST_OBJECTS)
+	$(QUIET_LD) $(CC) $^ -o $@ $(TEST_CFLAGS) $(TEST_LFLAGS)
+
+%.1.gz: %.1
+	$(QUIET_GEN) cat $< | gzip -f >$@
+
+install:
+	$(MKDIR_P) $(bindir) $(mandir)/man1
+	$(INSTALL_PROGRAM) $(PROGNAME) $(bindir)
+	$(INSTALL_DATA) $(PROGNAME).1.gz $(mandir)/man1
+
+uninstall:
+	$(RM) $(bindir)/$(PROGNAME)
+	$(RM) $(mandir)/man1/$(PROGNAME).1.gz
+
+clean:
+	$(RM) $(PROGNAME) tests/test $(PROGNAME).1.gz
+	$(RM) *.o */*.o */*.d *.d
+
+clean-aux:
+	$(RM) -r $(AUX_FILES)
+
+distclean: clean clean-aux
+
+
+ifndef V
+QUIET_CC    = @echo "  CC     $@";
+QUIET_LD    = @echo "  CCLD   $@";
+QUIET_GEN   = @echo "  GEN    $@";
+endif
diff --git a/autogen.sh b/autogen.sh
new file mode 100755
index 0000000..5d6dd5b
--- /dev/null
+++ b/autogen.sh
@@ -0,0 +1,23 @@
+#!/bin/sh
+set -e
+
+test -n "$srcdir" || srcdir=$(dirname "$0")
+test -n "$srcdir" || srcdir=.
+
+AUTORECONF=$(which autoreconf || true)
+AUTOMAKE=$(which automake || true)
+
+if [ -z "$AUTORECONF" ] || [ -z "$AUTOMAKE" ]; then
+        echo "*** No autoreconf or automake found, please intall it ***"
+        exit 1
+fi
+
+olddir=$(pwd)
+cd "$srcdir"
+
+autoreconf --force --install --verbose
+
+# Install 'install-sh' and do not bother with missing 'Makefile.am'
+automake --add-missing --copy 2>/dev/null || true
+
+cd "$olddir"
diff --git a/configure.ac b/configure.ac
new file mode 100644
index 0000000..86653ec
--- /dev/null
+++ b/configure.ac
@@ -0,0 +1,33 @@
+#                                               -*- Autoconf -*-
+# Process this file with autoconf to produce a configure script.
+
+AC_PREREQ([2.69])
+AC_INIT([sanskrit-iast], [2.0.0], [vlastavesely@protonmail.ch])
+AC_CONFIG_SRCDIR([iast.c])
+AC_CONFIG_HEADERS([config.h])
+
+PROGNAME=iast
+AC_SUBST(PROGNAME)
+
+# Checks for programs.
+AC_PROG_CC
+AC_PROG_MKDIR_P
+AC_PROG_INSTALL
+
+# Checks for libraries.
+PKG_CHECK_MODULES(CHECK, check)
+
+# Checks for header files.
+AC_CHECK_HEADERS([fcntl.h stdlib.h string.h unistd.h])
+
+# Checks for typedefs, structures, and compiler characteristics.
+AC_C_INLINE
+
+# Checks for library functions.
+AC_FUNC_ERROR_AT_LINE
+AC_FUNC_MALLOC
+AC_FUNC_REALLOC
+AC_CHECK_FUNCS([memmove])
+
+AC_CONFIG_FILES([Makefile])
+AC_OUTPUT
diff --git a/main.c b/main.c
index 5a93365..82af3dc 100644
--- a/main.c
+++ b/main.c
@@ -2,9 +2,9 @@
 #include "transliteration.h"
 #include "transcription.h"
 #include "velthuis.h"
+#include "config.h"
 
 #define PROGNAME "iast"
-#define VERSION "2.0"
 
 #define FLAG_REVERSE	1 << 0
 #define FLAG_ENCODE	1 << 1
@@ -38,7 +38,7 @@ static void print_usage()
 
 static void print_version()
 {
-	fprintf(stdout, PROGNAME " v" VERSION "\n");
+	fprintf(stdout, PROGNAME " v" PACKAGE_VERSION "\n");
 }
 
 static void error(const char *msg, ...)