50 lines
1.4 KiB
Diff
50 lines
1.4 KiB
Diff
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From ac38a49a18e337fb3bc7ac8e06097e28e1e3b3f7 Mon Sep 17 00:00:00 2001
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From: Baruch Siach <baruch@tkos.co.il>
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Date: Fri, 14 Apr 2017 07:43:04 +0300
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Subject: [PATCH] configure: fix cross compile detection of broken ipv6 headers
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Checking the content of the host ipv6.h headers is incompatible with cross
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compilation. Target headers may not be the same as the host. Do direct build
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test instead using the ${CC} (cross) compiler to detect headers issues.
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Define _GNU_SOURCE to make sure glibc ipv6 definitions are exposed.
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Signed-off-by: Baruch Siach <baruch@tkos.co.il>
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---
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Patch status: submitted upstream
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configure | 17 +++++++++++++++--
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1 file changed, 15 insertions(+), 2 deletions(-)
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diff --git a/configure b/configure
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index aa3f7f334971..8639a38eba96 100755
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--- a/configure
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+++ b/configure
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@@ -51,8 +51,21 @@ echo "[*] Checking system headers."
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[ -z "$IPV6" ] && IPV6=yes
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if [[ "$IPV6" == "yes" ]]; then
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echo -n "[*] Checking ipv6 headers ... "
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- RET=$(grep __UAPI_DEF_IN6_PKTINFO /usr/include/linux/ipv6.h)
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- if [ -z "$RET" ]; then
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+ rm -f "$TMP" || exit 1
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+
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+ cat >"$TMP.c" << EOF
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+#include <netinet/in.h>
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+#include <netinet/ip6.h>
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+#include <linux/in6.h>
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+#include <linux/ipv6.h>
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+
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+int main()
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+{
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+ struct in6_addr test;
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+}
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+EOF
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+ ${CC} ${CFLAGS} -D_GNU_SOURCE "$TMP.c" -o "$TMP" &>"$TMP.log"
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+ if [ ! -x "$TMP" ]; then
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echo $RED "[BROKEN]" $COL_RESET "See https://patchwork.ozlabs.org/patch/425881/"
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else
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echo $GREEN "[OK]" $COL_RESET
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--
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2.11.0
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