Added makefiles for C and C++ code bundles.

c/Makefile

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+# 
+# Makefile for QR Code generator (C++)
+# 
+# Copyright (c) Project Nayuki
+# https://www.nayuki.io/page/qr-code-generator-library
+# 
+# (MIT License)
+# Permission is hereby granted, free of charge, to any person obtaining a copy of
+# this software and associated documentation files (the "Software"), to deal in
+# the Software without restriction, including without limitation the rights to
+# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+# the Software, and to permit persons to whom the Software is furnished to do so,
+# subject to the following conditions:
+# - The above copyright notice and this permission notice shall be included in
+#   all copies or substantial portions of the Software.
+# - The Software is provided "as is", without warranty of any kind, express or
+#   implied, including but not limited to the warranties of merchantability,
+#   fitness for a particular purpose and noninfringement. In no event shall the
+#   authors or copyright holders be liable for any claim, damages or other
+#   liability, whether in an action of contract, tort or otherwise, arising from,
+#   out of or in connection with the Software or the use or other dealings in the
+#   Software.
+# 
+
+
+# ---- Configuration options ----
+
+# External/implicit variables:
+# - CC: The C compiler, such as gcc or clang.
+# - CFLAGS: Any extra user-specified compiler flags (can be blank).
+
+# Mandatory compiler flags
+CFLAGS += -std=c99
+# Diagnostics. Adding '-fsanitize=address' is helpful for most versions of Clang and newer versions of GCC.
+CFLAGS += -Wall -fsanitize=undefined
+# Optimization level
+CFLAGS += -O1
+
+
+# ---- Controlling make ----
+
+# Clear default suffix rules
+.SUFFIXES:
+
+# Don't delete object files
+.SECONDARY:
+
+# Stuff concerning goals
+.DEFAULT_GOAL = all
+.PHONY: all clean
+
+
+# ---- Targets to build ----
+
+LIBSRC = qrcodegen
+MAINS = qrcodegen-demo qrcodegen-test qrcodegen-worker
+
+# Build all binaries
+all: $(MAINS)
+
+# Delete build output
+clean:
+	rm -f -- $(MAINS)
+
+# Executable files
+%: %.c $(LIBSRC:=.c) $(LIBSRC:=.h)
+	$(CC) $(CFLAGS) -o $@ $< $(LIBSRC:=.c)
+
+# Special executable
+qrcodegen-test: qrcodegen-test.c $(LIBSRC:=.c) $(LIBSRC:=.h)
+	$(CC) $(CFLAGS) -DQRCODEGEN_TEST -o $@ $< $(LIBSRC:=.c)

cpp/Makefile

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+# 
+# Makefile for QR Code generator (C++)
+# 
+# Copyright (c) Project Nayuki
+# https://www.nayuki.io/page/qr-code-generator-library
+# 
+# (MIT License)
+# Permission is hereby granted, free of charge, to any person obtaining a copy of
+# this software and associated documentation files (the "Software"), to deal in
+# the Software without restriction, including without limitation the rights to
+# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+# the Software, and to permit persons to whom the Software is furnished to do so,
+# subject to the following conditions:
+# - The above copyright notice and this permission notice shall be included in
+#   all copies or substantial portions of the Software.
+# - The Software is provided "as is", without warranty of any kind, express or
+#   implied, including but not limited to the warranties of merchantability,
+#   fitness for a particular purpose and noninfringement. In no event shall the
+#   authors or copyright holders be liable for any claim, damages or other
+#   liability, whether in an action of contract, tort or otherwise, arising from,
+#   out of or in connection with the Software or the use or other dealings in the
+#   Software.
+# 
+
+
+# ---- Configuration options ----
+
+# External/implicit variables:
+# - CXX: The C++ compiler, such as g++ or clang++.
+# - CXXFLAGS: Any extra user-specified compiler flags (can be blank).
+
+# Mandatory compiler flags
+CXXFLAGS += -std=c++11
+# Diagnostics. Adding '-fsanitize=address' is helpful for most versions of Clang and newer versions of GCC.
+CXXFLAGS += -Wall -fsanitize=undefined
+# Optimization level
+CXXFLAGS += -O1
+
+
+# ---- Controlling make ----
+
+# Clear default suffix rules
+.SUFFIXES:
+
+# Don't delete object files
+.SECONDARY:
+
+# Stuff concerning goals
+.DEFAULT_GOAL = all
+.PHONY: all clean
+
+
+# ---- Targets to build ----
+
+LIBSRC = BitBuffer QrCode QrSegment
+MAINS = QrCodeGeneratorDemo QrCodeGeneratorWorker
+
+# Build all binaries
+all: $(MAINS)
+
+# Delete build output
+clean:
+	rm -f -- $(MAINS)
+
+# Executable files
+%: %.cpp $(LIBSRC:=.cpp) $(LIBSRC:=.hpp)
+	$(CXX) $(CXXFLAGS) -o $@ $< $(LIBSRC:=.cpp)