From cb388b2138d9f3b65a17e00580eefeca1b9b8efc Mon Sep 17 00:00:00 2001
From: Guillem Jover <guillem@debian.org>
Date: Fri, 13 May 2022 19:57:29 +0800
Subject: [PATCH] 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.

Gbp-Pq: Name syscalls-linux.patch
---
 configure.ac          |  6 ++++++
 libattr/Makemodule.am | 17 ++++++++++++++---
 2 files changed, 20 insertions(+), 3 deletions(-)

diff --git a/configure.ac b/configure.ac
index 389d7d4..3c13bb8 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
@@ -49,6 +50,11 @@ dnl Automatically increment the revision for every release.
 LT_REVISION=$(echo "${PACKAGE_VERSION}" | tr -d .)
 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