From 7b3423dcbf6775539124c52a59e8bc76e33596f6 Mon Sep 17 00:00:00 2001
From: Guillem Jover <guillem@hadrons.org>
Date: Sat, 20 Jul 2019 04:14:41 +0200
Subject: build: Only include the compat syscall stubs on Linux systems

These are Linux specific syscalls. Other systems either already have
these function on their libc, or would need different implementations.
This restores the previous behavior before the build system
modernization.

Signed-off-by: Guillem Jover <guillem@hadrons.org>
---
 configure.ac          |  5 +++++
 libattr/Makemodule.am | 17 ++++++++++++++---
 2 files changed, 19 insertions(+), 3 deletions(-)

diff --git a/configure.ac b/configure.ac
index 1bdcd75..b444e61 100644
--- a/configure.ac
+++ b/configure.ac
@@ -24,6 +24,7 @@ AC_PREFIX_DEFAULT(/usr)
 AM_INIT_AUTOMAKE([-Wall foreign 1.11 dist-xz subdir-objects])
 AM_SILENT_RULES([yes])
 
+AC_CANONICAL_HOST
 AC_PROG_CC
 AM_PROG_CC_C_O
 AC_USE_SYSTEM_EXTENSIONS
@@ -52,6 +53,10 @@ AS_IF([test $# -ne 3 -o ${#1} -gt 1 -o ${#2} -gt 1 -o ${#3} -gt 2],
 LT_REVISION=$(printf "%d%d%02d" "$1" "$2" "$3")
 AC_SUBST(LT_REVISION)
 
+AS_CASE([$host_os],
+	[linux*], [os_linux=yes])
+AM_CONDITIONAL([OS_LINUX], [test "x$os_linux" = "xyes"])
+
 AC_CONFIG_COMMANDS([include/attr],
 	[dnl
 	rm -rf include/attr
diff --git a/libattr/Makemodule.am b/libattr/Makemodule.am
index 4b3720c..1211aba 100644
--- a/libattr/Makemodule.am
+++ b/libattr/Makemodule.am
@@ -8,19 +8,30 @@ LT_CURRENT = 2
 LT_AGE = 1
 LTVERSION = $(LT_CURRENT):$(LT_REVISION):$(LT_AGE)
 
-libattr_la_DEPENDENCIES = exports libattr/libattr.lds
+libattr_la_DEPENDENCIES = \
+	exports
+if OS_LINUX
+libattr_la_DEPENDENCIES += \
+	libattr/libattr.lds
+endif
 libattr_la_SOURCES = \
 	libattr/attr_copy_action.c \
 	libattr/attr_copy_check.c \
 	libattr/attr_copy_fd.c \
 	libattr/attr_copy_file.c \
 	libattr/libattr.c \
-	libattr/syscalls.c \
 	libattr/libattr.h
+if OS_LINUX
+libattr_la_SOURCES += \
+	libattr/syscalls.c
+endif
 libattr_la_CFLAGS = -include libattr/libattr.h
 libattr_la_LDFLAGS = \
 	-Wl,--version-script,$(top_srcdir)/exports \
-	-Wl,$(top_srcdir)/libattr/libattr.lds \
 	-version-info $(LTVERSION)
+if OS_LINUX
+libattr_la_LDFLAGS += \
+	-Wl,$(top_srcdir)/libattr/libattr.lds
+endif
 
 EXTRA_DIST += libattr/libattr.lds
-- 
cgit v1.2.1