Write Autotools configuration

Add Autotools configuration files for building binaries.

.gitignore

@@ -1,2 +1,41 @@
+# Only include required source files.
+# Do no include any binaries or libraries/external sources.
+# Submodules are not added here, as they are managed by Git automatically.
+*
+*/
+
+# /
+!.gitignore
+!.gitignores
+!AUTHORS
+!build.sh
+!CHANGELOG
+!configure.ac
+!LICENSE
+!Makefile.am
+!README
+!TODO
+
+# /docs
+!/docs/
+/docs/*
+
+!/docs/1.O_LEGAL
+/docs/1.0_LEGAL/*
+
+!/docs/1.0_LEGAL/1.1_PRIVACY
+
+# /src
+!/src/
+/src/*
+
+!/src/gdextension_interface.h
+!/src/Makefile.am
+!/src/main.c
+!/src/main.gdextension
+!/src/main.h
+
 # Godot 4+ specific ignores
 .godot/
+
+

AUTHORS

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+AUTHORS
+=======
+
+Aidan Mullen
+
+--- end of AUTHORS ---

CHANGELOG

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+CHANGELOG
+=========
+
+0.1.0
+-----
+
+--- end of CHANGELOG ---

Makefile.am

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+AUTOMAKE_OPTIONS = foreign # Do not generate GNU files (COPYING, etc.)
+SUBDIRS = src # Source subdirectory.
+ACLOCAL_AMFLAGS = -I m4 # Autoconf flags; m4 is the language used.

README

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+RTR
+===
+
+    RTR source repository.
+
+Dependencies
+------------
+
+    The following dependencies will need to be installed as per the instructions
+for your system; heavily shared library-oriented systems may need all of these
+installed to run the compiled binary.
+
+    - Godot
+    - Vulkan
+
+Build
+-----
+
+    The recommended build procedure requires the following installations:
+        - Git
+        - GNU Autotools
+        - UNIX Shell
+
+    1.) Install the dependencies listed above.
+
+    2.) Clone this repository with all submodules.
+        a.) Run the following command:
+            git clone --recurse-submodules -j8 -b {branch} {URL to this
+            repository}
+                No submodules have been added yet.
+
+    3.) Run "build.sh" within a UNIX shell.
+
+    Project organized in conformance to the Straightforward C Project Standard 5
+(SCPS5).
+
+--- end of README ---

TODO

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+TODO
+====
+
+--- end of TODO ---

build.sh

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+#!/usr/bin/env sh
+
+# Build Script
+
+# Run Autotools
+libtoolize
+aclocal
+autoconf
+autoheader
+automake --add-missing
+
+# Run Generated Files
+# Disable static linking and enable GUI component; builds complete version.
+./configure --disable-static --enable-shared --enable-extra=yes
+make

configure.ac

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+# Title, version, etc.
+AC_INIT(\
+        [RTR], \
+        [0.1.0], \
+        [mail@acm.contact], \
+        [rtr], \
+        [https://www.delay.cloud/] \
+        )
+
+# AC_CHECK_LIB is not utilized, since it checks the presence of libraries by
+# linking them to test program; this process introduces more overhead and longer
+# build times.
+
+# Define BUILD in order to enable inclusion of config.h, which will act as the
+# Autoheader.
+AC_DEFINE([BUILD], [1], [Build system enabled.])
+AM_CONFIG_HEADER([src/config.h])
+
+AC_CONFIG_MACRO_DIR([m4
+                    ])
+
+# Do not generate GNU project files and disable some checks.
+# Includes flags to strictly compile Standard C89.
+AM_INIT_AUTOMAKE([\
+                  foreign \
+                  -Wall \
+                  -Werror \
+                  -Wno-portability \
+                  subdir-objects \
+                  ])
+
+# Option to enable extras.
+AC_ARG_ENABLE([extra],
+    AS_HELP_STRING([--enable-extra], [Enable features]))
+AS_IF([test "x$enable_extra" = "xyes"], [
+  AC_DEFINE([EXTRA], [1], [Enable extra features.])
+  AM_CONDITIONAL([EXTRA], [test "x$enable_extra" = "xyes"])
+])
+
+# Locations of generated Makefiles.
+AC_CONFIG_FILES([\
+                 Makefile \
+                 src/Makefile \
+                 ])
+
+# Primary SDT.
+AC_CONFIG_SRCDIR([src/main.c])
+
+
+CFLAGS="$CFLAGS -std=c89 -pedantic-errors -Wall -Wold-style-definition -Wextra \
+        -Wmissing-prototypes -Wstrict-prototypes" # Compile to C89
+                                                  # without
+                                                  # GNU extensions.
+                                                  # Warnings on.
+
+LT_INIT([shared disable-static]) # Start GNU Libtool. Satic libraries
+                                 # disabled; shared/dynamic linking.
+
+AC_PROG_CC([gcc]) # Autoconf for C compiler; obviously set to use GCC.
+
+AC_OUTPUT # Generate files.
+
+# Possibly add echo here.

src/Makefile.am

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+# Makefile for primary source directory.
+SUBDIRS = extra # Subdirectory for GUI.
+bin_PROGRAMS = $(top_builddir)/bin/rtr # Program name.
+__top_builddir__bin_rtr_CFLAGS = -DBUILD # Define BUILD preprocessor variable.
+__top_builddir__bin_rtr_SOURCES = main.c # Sources
+
+if extra
+__top_builddir__bin_rtr_LDADD = ./extra/libextra.la # Include extra.
+
+# -Bshared sets preference for shared libraries.
+# No libraries are currently linked here.
+AM_CFLAGS = "-I$(srcdir) \
+			-Bshared
+endif