Use Libtool

.gitignore

@@ -4,10 +4,13 @@
 
 *.a
 *.c.d
+*.la
+*.lo
 *.o
 
 .deps/
 .dirstamp
+.libs/
 
 ############################
 # Always generated in root #
@@ -28,9 +31,13 @@
 /configure~
 /depcomp
 /install-sh
+/ltmain.sh
 /missing
 /test-driver
 
+/m4/*
+!/m4/.keep
+
 # Custom
 
 /Makefile.in
@@ -43,6 +50,7 @@
 /config.h
 /config.log
 /config.status
+/libtool
 /stamp-h1
 /test-suite.log
 

Makefile.am

@@ -1,3 +1,5 @@
+ACLOCAL_AMFLAGS = -I m4
+
 SUBDIRS = include
 
 AM_CFLAGS = \
@@ -9,10 +11,10 @@ AM_CFLAGS = \
 	-I$(top_srcdir)/include
 
 bin_PROGRAMS = autotools-project
-lib_LIBRARIES = libautotools-project.a
+lib_LTLIBRARIES = libautotools-project.la
 
 autotools_project_SOURCES = \
 	src/main.c
 
-libautotools_project_a_SOURCES = \
+libautotools_project_la_SOURCES = \
 	src/lib.c

configure.ac

@@ -1,34 +1,69 @@
+############################
+# Specify program versions #
+############################
+
 AC_PREREQ([2.68])
+LT_PREREQ([2.4.6])
+
+
+
+#######################
+# Initialize Autoconf #
+#######################
+
 AC_INIT([autotools-project],
   [0.0.0],
   [https://github.com/tailix/autotools-project/issues],
   [autotools-project],
   [https://github.com/tailix/autotools-project])
 
-AC_CONFIG_HEADERS([config.h])
-AC_CONFIG_SRCDIR([src/main.c])
-
 AC_CANONICAL_BUILD
 AC_CANONICAL_HOST
 
-
-
-AM_INIT_AUTOMAKE([1.9 subdir-objects])
-
+AC_CONFIG_MACRO_DIRS([m4])
+AC_CONFIG_HEADERS([config.h])
+AC_CONFIG_SRCDIR([src/main.c])
 AC_CONFIG_FILES([
   Makefile
   include/Makefile
 ])
 
+
+
+#######################
+# Initialize Automake #
+#######################
+
+AM_INIT_AUTOMAKE([1.16 subdir-objects])
+
+
+
+##############
+# Run checks #
+##############
+
 AC_LANG([C])
 
 AM_PROG_AR
 AM_PROG_AS
 AC_PROG_CC
 AC_PROG_CC_C99
-AC_PROG_RANLIB
 AC_C_INLINE
 AC_CHECK_HEADER_STDBOOL
 AC_CHECK_HEADERS([stdarg.h stddef.h stdint.h])
 
+
+
+######################
+# Initialize Libtool #
+######################
+
+LT_INIT([disable-shared])
+
+
+
+##########
+# Finish #
+##########
+
 AC_OUTPUT