Makefile: Build libweb also as a shared library

.gitignore

@@ -1,5 +1,7 @@
 *.o
 *.a
 *.d
+*.so
+*.so.*
 examples/hello/hello
 examples/html/html

Makefile

@@ -1,12 +1,21 @@
 .POSIX:
 
-PROJECT = libweb.a
+PROJECT = libweb
+PROJECT_A = $(PROJECT).a
+MAJOR_VERSION = 0
+MINOR_VERSION = 1
+PATCH_VERSION = 0
+VERSION = $(MAJOR_VERSION).$(MINOR_VERSION).$(PATCH_VERSION)
+PROJECT_SO = $(PROJECT).so.$(VERSION)
+PROJECT_SO_FQ = $(PROJECT).so.$(MAJOR_VERSION)
+PROJECT_SO_NV = $(PROJECT).so
 PREFIX = /usr/local
 DST = $(PREFIX)/lib
 PC_DST = $(DST)/pkgconfig
 O = -Og
 CDEFS = -D_FILE_OFFSET_BITS=64 # Required for large file support on 32-bit.
-CFLAGS = $(O) $(CDEFS) -g -Iinclude -Idynstr/include -MD -MF $(@:.o=.d)
+CFLAGS = $(O) $(CDEFS) -g -Iinclude -Idynstr/include -fPIC -MD -MF $(@:.o=.d)
+LDFLAGS = -shared
 DEPS = $(OBJECTS:.o=.d)
 OBJECTS = \
 	handler.o \
@@ -15,15 +24,17 @@ OBJECTS = \
 	server.o \
 	wildcard_cmp.o
 
-all: $(PROJECT)
+all: $(PROJECT_A) $(PROJECT_SO)
 
 install: all $(PC_DST)/libweb.pc
 	mkdir -p $(PREFIX)/include
 	cp -R include/libweb $(PREFIX)/include
 	chmod 0644 $(PREFIX)/include/libweb/*.h
 	mkdir -p $(DST)
-	cp $(PROJECT) $(DST)
-	chmod 0755 $(DST)/$(PROJECT)
+	cp $(PROJECT_A) $(PROJECT_SO) $(DST)
+	chmod 0755 $(DST)/$(PROJECT_A) $(DST)/$(PROJECT_SO)
+	ln -fs $(DST)/$(PROJECT_SO) $(DST)/$(PROJECT_SO_FQ)
+	ln -fs $(DST)/$(PROJECT_SO) $(DST)/$(PROJECT_SO_NV)
 	+cd doc && $(MAKE) PREFIX=$(PREFIX) install
 
 clean:
@@ -35,9 +46,12 @@ FORCE:
 examples: FORCE
 	+cd examples && $(MAKE)
 
-$(PROJECT): $(OBJECTS)
+$(PROJECT_A): $(OBJECTS)
 	$(AR) $(ARFLAGS) $@ $(OBJECTS)
 
+$(PROJECT_SO): $(OBJECTS)
+	$(CC) $(LDFLAGS) $(OBJECTS) -o $@
+
 $(PC_DST)/libweb.pc: libweb.pc
 	mkdir -p $(PC_DST)
 	sed -e 's,/usr/local,$(PREFIX),' $< > $@

dynstr

@@ -1 +1 @@
-Subproject commit de0d0e9fab2dc8e5886484c680d7ab9062ad3952
+Subproject commit 80057fd3c1e2ed11e1c1d6e01e4c8d60042cf30d