configure.ac: fix build on toolchain without SSP

Commit 3b5a0eeb reverted 3aa72711 resulting in lxc being unable to be built on toolchain without SSP support Fixes: - http://autobuild.buildroot.org/results/57945f54ffbc5c8764b6891a4516c4907e56ab97Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>

configure.ac: fix build on toolchain without SSP
887287f3 · Fabrice Fontaine · Christian Brauner · 699be419 · 887287f3
Unverified Commit 887287f3 authored Nov 11, 2019 by Fabrice Fontaine Committed by Christian Brauner Dec 02, 2019
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configure.ac configure.ac +2 -2

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--- a/configure.ac
+++ b/configure.ac
@@ -705,8 +705,8 @@ AX_CHECK_COMPILE_FLAG([-Wcast-align], [CFLAGS="$CFLAGS -Wcast-align"],,[-Werror]
 AX_CHECK_COMPILE_FLAG([-Wstrict-prototypes], [CFLAGS="$CFLAGS -Wstrict-prototypes"],,[-Werror])
 AX_CHECK_COMPILE_FLAG([-fno-strict-aliasing], [CFLAGS="$CFLAGS -fno-strict-aliasing"],,[-Werror])
 AX_CHECK_COMPILE_FLAG([-fstack-clash-protection], [CFLAGS="$CFLAGS -fstack-clash-protection"],,[-Werror])
-AX_CHECK_COMPILE_FLAG([-fstack-protector-strong], [CFLAGS="$CFLAGS -fstack-protector-strong"],,[-Werror])
+AX_CHECK_LINK_FLAG([-fstack-protector-strong], [CFLAGS="$CFLAGS -fstack-protector-strong"],,[-Werror])
-AX_CHECK_COMPILE_FLAG([--param=ssp-buffer-size=4], [CFLAGS="$CFLAGS --param=ssp-buffer-size=4"],,[-Werror])
+AX_CHECK_LINK_FLAG([--param=ssp-buffer-size=4], [CFLAGS="$CFLAGS --param=ssp-buffer-size=4"],,[-Werror])
 AX_CHECK_COMPILE_FLAG([-g], [CFLAGS="$CFLAGS -g"],,[-Werror])
 AX_CHECK_COMPILE_FLAG([--mcet -fcf-protection], [CFLAGS="$CFLAGS --mcet -fcf-protection"],,[-Werror])
 AX_CHECK_COMPILE_FLAG([-Werror=implicit-function-declaration], [CFLAGS="$CFLAGS -Werror=implicit-function-declaration"],,[-Werror])