From 970196192771eeda39fabcc59a5dae9613e871a8 Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Oct 22 2018 18:41:18 +0000
Subject: src/Makefile: add ENABLE_SHARED boolean to allow static-only build


Currently, the libaio build sytem builds a shared library
unconditionally. In some environments, this is not possible or
desirable. This commit adds a new Makefile variable, ENABLE_SHARED,
which defaults to "1" (i.e shared library enabled) and that allows to
override this behavior, and therefore to disable the build and
installation of the shared library.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Jeff Moyer <jmoyer@redhat.com>

---

diff --git a/src/Makefile b/src/Makefile
index f5a57d3..b437945 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -8,12 +8,17 @@ SO_CFLAGS=-shared $(CFLAGS)
 L_CFLAGS=$(CFLAGS)
 LINK_FLAGS=
 LINK_FLAGS+=$(LDFLAGS)
+ENABLE_SHARED ?= 1
 
 soname=libaio.so.1
 minor=0
 micro=1
 libname=$(soname).$(minor).$(micro)
-all_targets += libaio.a $(libname)
+all_targets += libaio.a
+
+ifeq ($(ENABLE_SHARED),1)
+all_targets += $(libname)
+endif
 
 all: $(all_targets)
 
@@ -55,9 +60,11 @@ $(libname): $(libaio_sobjs) libaio.map
 install: $(all_targets)
 	install -D -m 644 libaio.h $(includedir)/libaio.h
 	install -D -m 644 libaio.a $(libdir)/libaio.a
+ifeq ($(ENABLE_SHARED),1)
 	install -D -m 755 $(libname) $(libdir)/$(libname)
 	ln -sf $(libname) $(libdir)/$(soname)
 	ln -sf $(libname) $(libdir)/libaio.so
+endif
 
 $(libaio_objs): libaio.h