From 96fd9807139940089cdcc83342ab143532ded330 Mon Sep 17 00:00:00 2001
From: flu0r1ne <flu0r1ne@flu0r1ne.net>
Date: Mon, 31 Oct 2022 08:00:55 -0500
Subject: Add shared lib

---
 makefile | 43 +++++++++++++++++++++++++++++++++++--------
 1 file changed, 35 insertions(+), 8 deletions(-)

(limited to 'makefile')

diff --git a/makefile b/makefile
index 8328469..8f28203 100644
--- a/makefile
+++ b/makefile
@@ -6,20 +6,24 @@ ifeq ($(BINDIR),)
 	BINDIR := /bin
 endif
 
-CMD=qidx
+name := qidx
+cmd := qidx
+
+so_major := 0
+so_minor := 1
 
 CC=gcc
 
-DEBUG := -fsanitize=address -O2
 
-CFLAGS := -Wall -pedantic -g
-LDFLAGS := -lhts -lm
+CFLAGS = -Wall -pedantic $(debug)
+LDFLAGS := -lhts -lm -fPIC
 
+# debug = -fsanitize=address -O2 -g
 SRC_EXT:=%.c
 
 _STD_BUILD=$(CC) $(CFLAGS) $(filter $(SRC_EXT) %.o, $^) -o $@
 STD_BUILD=$(_STD_BUILD) $(LDFLAGS)
-STD_COMPILE=$(_STD_BUILD) -c
+STD_COMPILE=$(_STD_BUILD) -fPIC -c
 
 OBJS = ./util/hash.o
 OBJS += ./util/prime_search.o
@@ -28,13 +32,36 @@ OBJS += ./util/sds/sds.o
 OBJS += ./util/err.o
 OBJS += ./qidx.o
 
-make: $(CMD)
+devname = lib$(name).so
+lib_so = lib$(name).so.$(so_major).$(so_minor)
+soname = lib$(name).so.$(so_major)
+
+make: $(cmd) $(lib_so)
 
-$(CMD): ./main.c $(OBJS)
+$(cmd): ./main.c $(OBJS)
 	$(STD_BUILD)
 
+$(lib_so): $(OBJS)
+	$(CC) $(LDFLAGS) -shared -Wl,-soname=$(soname) -fPIC -o $@ $^
+	[ -n "$(soname)" ] && ln -s $(lib_so) $(soname) || true
+	[ -n "$(devname)" ] && ln -s $(soname) $(devname) || true
+
 clean:
-	$(RM) $(CMD) $(OBJS)
+	$(RM) $(cmd) $(OBJS) $(devname) $(lib_so) $(soname)
+.PHONY: clean
 
 %.o: %.c
 	$(STD_COMPILE)
+
+.PHONY: install
+install:
+	mkdir -p $(DESTDIR)$(PREFIX)/include $(DESTDIR)$(PREFIX)/lib
+	cp qidx.h $(DESTDIR)$(PREFIX)/include/qidx.h
+	cp -d $(lib_so) $(soname) $(devname) $(DESTDIR)$(PREFIX)/lib/
+
+.PHONY: uninstall
+uninstall:
+	rm -f $(DESTDIR)$(PREFIX)/include/qidx.h
+	rm -f $(DESTDIR)$(PREFIX)/lib/$(lib_so)
+	[ -n "$(soname)" ] && rm -f $(DESTDIR)$(PREFIX)/lib/$(soname) || true
+	[ -n "$(devname)" ] && rm -f $(DESTDIR)$(PREFIX)/lib/$(devname) || true
-- 
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