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