Merge pull request emmanuel-marty#18 from Octoate/create-library

Build libapultra.a and use it for the cli program

Makefile

@@ -1,28 +1,36 @@
 CC=clang
+AR=ar
 CFLAGS=-O3 -g -fomit-frame-pointer -Isrc/libdivsufsort/include -Isrc
 OBJDIR=obj
-LDFLAGS=
+LDFLAGS=-L. -lapultra
 
 $(OBJDIR)/%.o: src/../%.c
- @mkdir -p '$(@D)'
- $(CC) $(CFLAGS) -c $< -o $@
+ @mkdir -p '$(@D)'
+ $(CC) $(CFLAGS) -c $< -o $@
 
 APP := apultra
+LIB := libapultra.a
 
-OBJS += $(OBJDIR)/src/apultra.o
-OBJS += $(OBJDIR)/src/expand.o
-OBJS += $(OBJDIR)/src/matchfinder.o
-OBJS += $(OBJDIR)/src/shrink.o
-OBJS += $(OBJDIR)/src/libdivsufsort/lib/divsufsort.o
-OBJS += $(OBJDIR)/src/libdivsufsort/lib/divsufsort_utils.o
-OBJS += $(OBJDIR)/src/libdivsufsort/lib/sssort.o
-OBJS += $(OBJDIR)/src/libdivsufsort/lib/trsort.o
+LIBOBJS += $(OBJDIR)/src/expand.o
+LIBOBJS += $(OBJDIR)/src/matchfinder.o
+LIBOBJS += $(OBJDIR)/src/shrink.o
+LIBOBJS += $(OBJDIR)/src/libdivsufsort/lib/divsufsort.o
+LIBOBJS += $(OBJDIR)/src/libdivsufsort/lib/divsufsort_utils.o
+LIBOBJS += $(OBJDIR)/src/libdivsufsort/lib/sssort.o
+LIBOBJS += $(OBJDIR)/src/libdivsufsort/lib/trsort.o
 
-all: $(APP)
+APPOBJS := $(OBJDIR)/src/apultra.o
 
-$(APP): $(OBJS)
- $(CC) $^ $(LDFLAGS) -o $(APP)
+all: $(APP) $(LIB)
 
-clean:
- @rm -rf $(APP) $(OBJDIR)
+$(APP): $(LIB) $(APPOBJS)
+ $(CC) $^ $(LDFLAGS) -o $(APP)
+
+$(LIB): $(LIBOBJS)
+ $(AR) rcs $(LIB) $(LIBOBJS)
 
+libs: $(LIB)
+
+clean:
+ @rm -rf $(APP) $(OBJDIR)
+ @rm -rf $(LIB)