From: =?utf-8?q?Thomas_Wei=C3=9Fschuh?= <thomas@t-8ch.de>
Date: Fri, 1 Dec 2023 09:35:02 +0100
Subject: build: only build test_enosys if an audit arch exists
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Link: https://lore.kernel.org/util-linux/9211accf8670f28778166a1acdc186e8dd28f2e8.camel@physik.fu-berlin.de/
Signed-off-by: Thomas Weißschuh <thomas@t-8ch.de>
---
 configure.ac                | 13 +++++++++++++
 meson.build                 | 13 ++++++++-----
 tests/helpers/Makemodule.am |  2 ++
 3 files changed, 23 insertions(+), 5 deletions(-)

diff --git a/configure.ac b/configure.ac
index 36c24b4..c84d295 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1878,6 +1878,19 @@ UL_REQUIRES_LINUX([waitpid])
 UL_REQUIRES_SYSCALL_CHECK([waitpid], [UL_CHECK_SYSCALL([pidfd_open])], [pidfd_open])
 AM_CONDITIONAL([BUILD_WAITPID], [test "x$build_waitpid" = xyes])
 
+UL_BUILD_INIT([test_enosys], [check])
+UL_REQUIRES_LINUX([test_enosys])
+AS_IF([test "x$build_test_enosys" = xyes], [
+  AC_MSG_CHECKING([for valid audit arch])
+  AC_COMPILE_IFELSE(
+    [AC_LANG_PROGRAM([[#include "${srcdir}/include/audit-arch.h"]])],
+    [AC_MSG_RESULT([yes])],
+    [AC_MSG_RESULT([no])
+     build_test_enosys=no
+    ])
+])
+AM_CONDITIONAL([BUILD_TEST_ENOSYS], [test "x$build_test_enosys" = xyes])
+
 UL_BUILD_INIT([getopt], [yes])
 AM_CONDITIONAL([BUILD_GETOPT], [test "x$build_getopt" = xyes])
 
diff --git a/meson.build b/meson.build
index baca755..b10028f 100644
--- a/meson.build
+++ b/meson.build
@@ -3,6 +3,7 @@ project('util-linux', 'c',
         meson_version: '>=0.57.0',
         license : 'GPLv2+')
 
+fs = import('fs')
 pkgconfig = import('pkgconfig')
 
 libblkid_version = '1.1.0'
@@ -3285,11 +3286,13 @@ if LINUX
   exes += exe
 endif
 
-exe = executable(
-  'test_enosys',
-  'tests/helpers/test_enosys.c',
-  include_directories : includes)
-exes += exe
+if cc.compiles(fs.read('include/audit-arch.h'), name : 'has AUDIT_ARCH_NATIVE')
+  exe = executable(
+    'test_enosys',
+    'tests/helpers/test_enosys.c',
+    include_directories : includes)
+  exes += exe
+endif
 
 ############################################################
 
diff --git a/tests/helpers/Makemodule.am b/tests/helpers/Makemodule.am
index 2b1df3c..6705eaf 100644
--- a/tests/helpers/Makemodule.am
+++ b/tests/helpers/Makemodule.am
@@ -34,7 +34,9 @@ test_uuid_namespace_SOURCES = tests/helpers/test_uuid_namespace.c \
 if LINUX
 check_PROGRAMS += test_mkfds
 test_mkfds_SOURCES = tests/helpers/test_mkfds.c
+endif
 
+if BUILD_TEST_ENOSYS
 check_PROGRAMS += test_enosys
 test_enosys_SOURCES = tests/helpers/test_enosys.c
 endif