autotools: fix wrong AX_CHECK_COMPILE_FLAG test

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

autotools: fix wrong AX_CHECK_COMPILE_FLAG test
a3f3659b · Christian Brauner · 1537e2c3 · a3f3659b
Unverified Commit a3f3659b authored Sep 21, 2018 by Christian Brauner
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configure.ac configure.ac +1 -1

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--- a/configure.ac
+++ b/configure.ac
@@ -676,7 +676,7 @@ AC_PROG_SED
 LXC_CHECK_TLS

 AX_CHECK_COMPILE_FLAG([-fdiagnostics-color], [CFLAGS="$CFLAGS -fdiagnostics-color"],,[-Werror])
-AX_CHECK_COMPILE_FLAG([-fdiagnostics-color], [CFLAGS="$CFLAGS -Wimplicit-fallthrough"],,[-Werror])
+AX_CHECK_COMPILE_FLAG([-implicit-fallthrough], [CFLAGS="$CFLAGS -Wimplicit-fallthrough"],,[-Werror])

 CFLAGS="$CFLAGS -Wvla -std=gnu11"
 if test "x$enable_werror" = "xyes"; then