[lxc-devel] [libresource/master] Add abi version

[hallyn on Github]

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From 5e79be7b476fa149f6ba32155afcf940352c3c5a Mon Sep 17 00:00:00 2001
From: Serge Hallyn <shallyn at cisco.com>
Date: Thu, 1 Aug 2019 00:07:44 -0500
Subject: [PATCH] Add abi version

Closes #8

1. add abi version with -soname link option
2. name the built library libresource.so.$(abi) (where of course
   abi is major.minor.releaseno)
3.  Call this 0.1.1.  Is there a different number we want to start at?

Tried to do this the simplest, least obtrusive way.

Signed-off-by: Serge Hallyn <shallyn at cisco.com>
---
 Makefile | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/Makefile b/Makefile
index dcfd226..fd3b897 100644
--- a/Makefile
+++ b/Makefile
@@ -2,16 +2,20 @@ CC = gcc
 CFLAGS = -g -Wall -Werror -fPIC
 DEPS = resource.h res_impl.h resmem.h resnet.h resproc.h
 OBJ = resource.o resmem.o resnet.o resproc.o
-LIB = libresource.so
 TEST = test
 RM = rm -rf
 CP = cp
+ABI_MAJOR=0
+ABI_MINOR=1
+ABI_MICRO=1
+ABI=$(ABI_MAJOR).$(ABI_MINOR).$(ABI_MICRO)
+LIB = libresource.so.$(ABI)
 
 %.o: %.c $(DEPS)
 	$(CC) -c -o $@ $< $(CFLAGS)
 
 all: $(OBJ)
-	$(CC) -shared -o $(LIB) $^ $(CFLAGS)
+	$(CC) -shared -Wl,-soname,libresource.so.$(ABI_MAJOR) -o $(LIB) $^ $(CFLAGS)
 
 .PHONY : clean
 clean: