Adding upstream version 1.8.0+20250123.

Signed-off-by: Daniel Baumann <daniel@debian.org>

c/Makefile

@@ -0,0 +1,88 @@
+# 
+# Makefile for QR Code generator (C)
+# 
+# Copyright (c) Project Nayuki. (MIT License)
+# https://www.nayuki.io/page/qr-code-generator-library
+# 
+# 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).
+
+# Recommended compiler flags:
+CFLAGS += -std=c99 -O
+
+# Extra flags for diagnostics:
+# CFLAGS += -g -Wall -Wextra -Wpedantic -Wconversion -Wsign-conversion -fsanitize=undefined,address
+
+
+# ---- 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 ----
+
+LIB = qrcodegen
+LIBFILE = lib$(LIB).a
+LIBOBJ = qrcodegen.o
+MAINS = qrcodegen-demo qrcodegen-test
+
+# Build all binaries
+all: $(LIBFILE) $(MAINS)
+
+# Delete build output
+clean:
+	rm -f -- $(LIBOBJ) $(LIBFILE) $(MAINS:=.o) $(MAINS)
+	rm -rf .deps
+
+# Executable files
+%: %.o $(LIBFILE)
+	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $< -L . -l $(LIB)
+
+# Special executable
+qrcodegen-test: qrcodegen-test.c $(LIBOBJ:%.o=%.c)
+	$(CC) $(CFLAGS) $(LDFLAGS) -DQRCODEGEN_TEST -o $@ $^
+
+# The library
+$(LIBFILE): $(LIBOBJ)
+	$(AR) -crs $@ -- $^
+
+# Object files
+%.o: %.c .deps/timestamp
+	$(CC) $(CFLAGS) -c -o $@ -MMD -MF .deps/$*.d $<
+
+# Have a place to store header dependencies automatically generated by compiler
+.deps/timestamp:
+	mkdir -p .deps
+	touch .deps/timestamp
+
+# Make use of said dependencies if available
+-include .deps/*.d