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Based on https://github.com/nayuki/QR-Code-generator/pull/72
--- c/Makefile.orig 2019-10-14 00:20:16 UTC
+++ c/Makefile
@@ -29,11 +29,13 @@
# - CFLAGS: Any extra user-specified compiler flags (can be blank).
# Recommended compiler flags:
-CFLAGS += -std=c99 -O
+CFLAGS ?= -std=c99 -O
# Extra flags for diagnostics:
# CFLAGS += -g -Wall -Wextra -Wpedantic -Wconversion -Wsign-conversion -fsanitize=undefined,address
+# Version information
+VERSION = 1.6.0
# ---- Controlling make ----
@@ -51,18 +53,45 @@ CFLAGS += -std=c99 -O
# ---- Targets to build ----
LIB = qrcodegen
-LIBFILE = lib$(LIB).a
+ARFILE = lib$(LIB).a
+LIBFILE = lib$(LIB).so
+# Bump the soname number when the ABI changes and gets incompatible
+SO_NAME = $(LIBFILE).1
+REAL_NAME = $(LIBFILE).$(VERSION)
+HEADERS = qrcodegen.h
LIBOBJ = qrcodegen.o
MAINS = qrcodegen-demo qrcodegen-test qrcodegen-worker
+# define paths to install
+INCLUDEDIR ?= $(DESTDIR)/usr/include/qrcodegen
+LIBDIR ?= $(DESTDIR)/usr/lib
+
# Build all binaries
-all: $(LIBFILE) $(MAINS)
+all: $(LIBFILE) $(ARFILE) $(MAINS)
# Delete build output
clean:
- rm -f -- $(LIBOBJ) $(LIBFILE) $(MAINS:=.o) $(MAINS)
+ rm -f -- $(LIBOBJ) $(LIBFILE) $(ARFILE) $(MAINS:=.o) $(MAINS)
rm -rf .deps
+install-shared: $(LIBFILE)
+ install -d $(LIBDIR) || true
+ install -m 0644 $(LIBFILE) $(LIBDIR)/$(REAL_NAME)
+ rm -f $(LIBDIR)/$(SO_NAME)
+ ln -s $(REAL_NAME) $(LIBDIR)/$(SO_NAME)
+ rm -f $(LIBDIR)/$(LIBFILE)
+ ln -s $(SO_NAME) $(LIBDIR)/$(LIBFILE)
+
+install-static: $(ARFILE)
+ install -d $(LIBDIR) || true
+ install -m 0644 $(ARFILE) $(LIBDIR)/$(ARFILE)
+
+install-header: $(HEADERS)
+ install -d $(INCLUDEDIR) || true
+ install -m 0644 $(HEADERS) $(INCLUDEDIR)/
+
+install: install-shared install-static install-header
+
# Executable files
%: %.o $(LIBFILE)
$(CC) $(CFLAGS) -o $@ $< -L . -l $(LIB)
@@ -72,12 +101,15 @@ qrcodegen-test: qrcodegen-test.c $(LIBOBJ:%.o=%.c)
$(CC) $(CFLAGS) -DQRCODEGEN_TEST -o $@ $^
# The library
-$(LIBFILE): $(LIBOBJ)
+$(ARFILE): $(LIBOBJ)
$(AR) -crs $@ -- $^
+$(LIBFILE): $(LIBOBJ)
+ $(CC) -shared -Wl,-soname,$(SO_NAME) $(LDFLAGS) -o $@ $^
+
# Object files
%.o: %.c .deps/timestamp
- $(CC) $(CFLAGS) -c -o $@ -MMD -MF .deps/$*.d $<
+ $(CC) $(CFLAGS) -fPIC -c -o $@ -MMD -MF .deps/$*.d $<
# Have a place to store header dependencies automatically generated by compiler
.deps/timestamp:
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