1 files changed, 32 insertions, 0 deletions

diff --git a/src/so.mk b/src/so.mk
new file mode 100644
index 000000000..10c43ad21
--- /dev/null
+++ b/src/so.mk
@@ -0,0 +1,32 @@
+# Common definitions for making shared objects.
+#
+# Note: $(ROOT)/config.mk must be included before this file.
+#
+# The includer should probably define SO and TARGET and may also want to define
+# MOD_HDRS, MOD_SRCS, MOD_OBJS, TOCLEAN and TODISTCLEAN.
+
+HDRS := $(sort $(wildcard *.h)) $(MOD_HDRS)
+SRCS := $(sort $(wildcard *.c)) $(MOD_SRCS)
+OBJS := $(SRCS:.c=.o) $(MOD_OBJS)
+
+CFLAGS += \
+        -ggdb $(HAVE_FATAL_WARNINGS) -O2 -DVERSION='"$(VERSION)"' \
+        -fstack-protector-all -D_FORTIFY_SOURCE=2 -Wformat -Wformat-security \
+        -fPIC
+
+LDFLAGS += -pie -fPIE -Wl,-z,relro -Wl,-z,now
+
+.PHONY: all
+all: $(TARGET)
+
+%.o : %.c $(HDRS) $(ROOT)/config.mk
+        $(CC) $(CFLAGS) $(INCLUDE) -c $< -o $@
+
+$(SO): $(OBJS) $(ROOT)/config.mk
+        $(CC) $(LDFLAGS) -shared -fPIC -z relro -o $@ $(OBJS) -ldl
+
+.PHONY: clean
+clean:; rm -fr $(OBJS) $(SO) *.plist $(TOCLEAN)
+
+.PHONY: distclean
+distclean: clean; rm -fr $(TODISTCLEAN)