[oe] [meta-java][PATCH] icedtea7-native: make GCC 6 happy

[Khem Raj]

On Mon, Jun 20, 2016 at 7:02 AM, Dan McGregor <danismostlikely at gmail.com> wrote:
> From: Daniel McGregor <daniel.mcgregor at vecima.com>
>
> GCC 6 sets the default C++ standard to C++14 and introduces dead store
> elimination by default. icedtea7 is not ready for either of these
> changes, so just set the C++ standard back to gnu++98 and disable dead
> store elimination.
>
> Signed-off-by: Daniel McGregor <daniel.mcgregor at vecima.com>
> Signed-off-by: Dan McGregor <dan.mcgregor at usask.ca>
> ---
>  recipes-core/icedtea/icedtea7-native.inc | 8 ++++++++
>  1 file changed, 8 insertions(+)
>
> diff --git a/recipes-core/icedtea/icedtea7-native.inc b/recipes-core/icedtea/icedtea7-native.inc
> index d624b7a..fa78991 100644
> --- a/recipes-core/icedtea/icedtea7-native.inc
> +++ b/recipes-core/icedtea/icedtea7-native.inc
> @@ -17,6 +17,14 @@ PACKAGECONFIG[x11] = ",--disable-headful,libx11-native xproto-native libxt-nativ
>  OEMAKE_BUILD_HEADLESS_ONLY = "${@bb.utils.contains('PACKAGECONFIG', 'x11', '', 'BUILD_HEADLESS_ONLY=1', d)}"
>  CFLAGS_append = "${@bb.utils.contains('PACKAGECONFIG', 'x11', '', ' -DHEADLESS=true', d)}"
>
> +# CXXFLAGS doesn't make it to all calls.
> +# Set the C++ standard version for C too.
> +CFLAGS_append = " -std=gnu++98 -fno-tree-dse -Wno-error"

this is interesting. what happens to C files ? I see that C++ files
may get the right options if they are using CFLAGS in makery
which should be fixed to use CXXFLAGS IMO

> +# Disable dead store elimination and set C++ standard to C++98.
> +# There are dead stores in the JVM that would be pretty hard to
> +# remove, so disable the optimisation in the compiler.
> +CXXFLAGS_append = " -std=gnu++98 -fno-tree-dse -Wno-error"
> +
>  inherit native java autotools pkgconfig
>
>  JAVA_HOME[unexport] = "1"
> --
> 2.9.0
>
> --
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