From 06a128b5ef88e3248b5cd524c90495183acb2671 Mon Sep 17 00:00:00 2001
From: Runxi Yu <me@runxiyu.org>
Date: Wed, 12 Mar 2025 08:58:09 +0800
Subject: [PATCH] Rename tmpl -> chtmplr and install the library

---
 .gitignore          |  3 +++
 Makefile            | 50 +++++++++++++++++++++++++++++++++++++++++++-------
 tmpl.c => chtmplr.c |  2 +-
 tmpl.h => chtmplr.h |  0 

diff --git a/.gitignore b/.gitignore
index 2d4e44cdce8dfe6d05142302bb90fa8845e445e7..4fc97512a42a5c42e9e8234117fcb33b1935c2af 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,6 @@ /chtmpl
 /parse.c
 /parse.h
 *.o
+*.a
+*.so
+*.so.*
diff --git a/Makefile b/Makefile
index 8d661aa6d09d145382b425eef9e7a9a8dfd5d2fe..ff19702c60658917173406103f3302b7ca1dd0b4 100644
--- a/Makefile
+++ b/Makefile
@@ -1,17 +1,24 @@
 CC = cc
 YACC = yacc
-CFLAGS = -Wall -Werror -O2
+CFLAGS = -Wall -Werror -O2 -fPIC
 YFLAGS = -d
 LDFLAGS =
 
+VERSION = 1
+SONAME = libchtmplr.so.$(VERSION)
+
 TARGET = chtmpl
-
-PREFIX ?= /usr/local
+STATIC_LIB = libchtmplr.a
+SHARED_LIB = libchtmplr.so.$(VERSION)
+SHARED_LINK = libchtmplr.so
 
 SRCS = chtmpl.c parse.y
 OBJS = chtmpl.o parse.o
 
-all: $(TARGET)
+LIB_SRCS = chtmplr.c
+LIB_OBJS = chtmplr.o
+
+all: $(TARGET) $(STATIC_LIB) $(SHARED_LIB)
 
 parse.c parse.h: parse.y
 	$(YACC) $(YFLAGS) -o parse.c $<
@@ -21,15 +28,44 @@ 	$(CC) $(CFLAGS) -c -o $@ $<
 
 parse.o: parse.c
 	$(CC) $(CFLAGS) -c -o $@ $<
+
+chtmplr.o: chtmplr.c chtmplr.h
+	$(CC) $(CFLAGS) -c -o $@ $<
+
+$(STATIC_LIB): $(LIB_OBJS)
+	ar rcs $@ $<
+
+$(SHARED_LIB): $(LIB_OBJS)
+	$(CC) -shared -Wl,-soname,$(SONAME) -o $@ $< $(LDFLAGS)
+	ln -sf $(SHARED_LIB) $(SHARED_LINK)
 
 $(TARGET): $(OBJS)
 	$(CC) $(LDFLAGS) -o $@ $(OBJS)
 
 clean:
-	rm -f $(TARGET) $(OBJS) parse.c parse.h *~
+	rm -f $(TARGET) $(OBJS) parse.c parse.h $(LIB_OBJS) $(STATIC_LIB) $(SHARED_LIB) $(SHARED_LINK) *~
+
+PREFIX ?= /usr/local
+LIBDIR ?= $(PREFIX)/lib
+INCLUDEDIR ?= $(PREFIX)/include
+
+install: install-bin install-lib
 
-install: $(TARGET)
+install-bin: $(TARGET)
 	install -d $(DESTDIR)$(PREFIX)/bin
 	install -m 755 $(TARGET) $(DESTDIR)$(PREFIX)/bin/
 
-.PHONY: all clean install
+install-lib: $(STATIC_LIB) $(SHARED_LIB)
+	install -d $(DESTDIR)$(INCLUDEDIR)
+	install -m 644 chtmplr.h $(DESTDIR)$(INCLUDEDIR)/
+
+	install -d $(DESTDIR)$(LIBDIR)
+	install -m 644 $(STATIC_LIB) $(DESTDIR)$(LIBDIR)/
+
+	install -m 755 $(SHARED_LIB) $(DESTDIR)$(LIBDIR)/
+	ln -sf $(SHARED_LIB) $(DESTDIR)$(LIBDIR)/$(SHARED_LINK)
+	ln -sf $(SHARED_LIB) $(DESTDIR)$(LIBDIR)/$(SONAME)
+	
+	-if [ $$(id -u) -eq 0 ]; then ldconfig; fi
+
+.PHONY: all clean install install-bin install-lib
diff --git a/tmpl.c b/chtmplr.c
rename from tmpl.c
rename to chtmplr.c
index a462a35fdd53ed1e7997e205fd621e462ad511bc..f467e506cc2021d7e0e3ec37fd23b6ec334b8d1b 100644
--- a/tmpl.c
+++ b/chtmplr.c
@@ -20,7 +20,7 @@ #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 
-#include "tmpl.h"
+#include "chtmplr.h"
 
 int
 tp_write(struct template *tp, const char *str, size_t len)
diff --git a/tmpl.h b/chtmplr.h
rename from tmpl.h
rename to chtmplr.h

-- 
2.48.1