[Buildroot] [git commit branch/2022.02.x] package/rt-tests: needs __sync_*_4 intrisics

[Buildroot] [git commit branch/2022.02.x] package/rt-tests: needs __sync_*_4 intrisics

[Peter Korsgaard]

commit: https://git.buildroot.net/buildroot/commit/?id=17440cadf9d5f0da60505d3ddaeb1ceefddead05
branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/2022.02.x

rt-tests needs __sync_*_4 intrisics since bump to version 1.9 in commit
32be34427956a590d07d12e965f97fa9d2110ae9 and
https://git.kernel.org/pub/scm/utils/rt-tests/rt-tests.git/commit/?id=c86dec5765e1ad0bd1d0c429ca7c138c11da2c80:

oslat.c:(.text+0x1034): undefined reference to `__sync_add_and_fetch_4'

Fixes:
 - http://autobuild.buildroot.org/results/9b065ee7611db3a404863b85161f46a2e9e8ddad

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
(cherry picked from commit 24d2bc3b1c747fbeb100fa79dfcd9f3645b98dd3)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
---
 package/rt-tests/Config.in | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/package/rt-tests/Config.in b/package/rt-tests/Config.in
index 47fa7cd840..8efa3d194e 100644
--- a/package/rt-tests/Config.in
+++ b/package/rt-tests/Config.in
@@ -1,5 +1,6 @@
 config BR2_PACKAGE_RT_TESTS
 	bool "rt-tests"
+	depends on BR2_TOOLCHAIN_HAS_SYNC_4 # __sync_*_4 intrisics
 	depends on BR2_TOOLCHAIN_HAS_THREADS_NPTL
 	depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_5
 	depends on BR2_USE_MMU # fork(), numactl
@@ -30,6 +31,7 @@ comment "rt-tests may not work on MIPS with an external uClibc toolchain"
 	depends on BR2_mips || BR2_mipsel || BR2_mips64 || BR2_mips64el
 
 comment "rt-tests needs a uClibc or glibc toolchain w/ NPTL, headers >= 4.5, dynamic library"
+	depends on BR2_TOOLCHAIN_HAS_SYNC_4
 	depends on !BR2_TOOLCHAIN_HAS_THREADS_NPTL || BR2_STATIC_LIBS \
 		|| BR2_TOOLCHAIN_USES_MUSL || !BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_5
 	depends on BR2_USE_MMU
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