squid: workaround a build failure with native gcc10

When build on Debian 11 (gcc10), squid fails to build[0] because of a
bug[1] in the configure step (it mixes options between old native compiler
and recent target compiler: the former needs the std=c++17 option, the latter
doesn't).

The workaround is to force the "-std=c++17" option for the native build.

NB: Our Buildroot friends have the same workaround[2].

[0]: https://autobuilder.yoctoproject.org/typhoon/#/builders/155/builds/23/steps/28/logs/stdio
[1]: https://bugs.squid-cache.org/show_bug.cgi?id=5376
     Bug closed as invalid by upstream
[2]: https://github.com/buildroot/buildroot/blob/932b52fad87d79d9f26a343edafe2981079de16e/package/squid/squid.mk#L24

Signed-off-by: Yoann Congal <yoann.congal@smile.fr>
Reviewed-by: Alexandre Truong <alexandre.truong@smile.fr>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/meta-networking/recipes-daemons/squid/squid_6.9.bb b/meta-networking/recipes-daemons/squid/squid_6.9.bb
index f0663a5e0..33d286e12 100644
--- a/meta-networking/recipes-daemons/squid/squid_6.9.bb
+++ b/meta-networking/recipes-daemons/squid/squid_6.9.bb
@@ -68,6 +68,11 @@ EXTRA_OECONF += "--with-default-user=squid \
                  --with-logdir=${localstatedir}/log/${BPN} \
                  'PERL=${USRBINPATH}/env perl'"
 
+# Workaround a build failure when using a native compiler that need -std=c++17
+# with a cross-compiler that doesn't.
+# Upstream issue closed as invalid : https://bugs.squid-cache.org/show_bug.cgi?id=5376
+BUILD_CXXFLAGS += "-std=c++17"
+
 export BUILDCXXFLAGS="${BUILD_CXXFLAGS}"
 
 TESTDIR = "test-suite"