[Buildroot] [PATCH] package/tpm2-tss: fix build without C++

[Yann E. MORIN]

Carlos, All,

On 2019-12-17 09:50 -0300, unixmania at gmail.com spake thusly:
> From: Carlos Santos <unixmania at gmail.com>
> 
> C++ is required because of a test that we don't build, so simply drop
> the requirement while we work on a definitive solution upstream.
> 
> Fixes:
>     http://autobuild.buildroot.net/results/13f5e37b47b255da4158bec34e5459136f7e60d4
>     http://autobuild.buildroot.net/results/1c26db2509c79e00c0de1165945277eaa57b149f
>     http://autobuild.buildroot.net/results/b7b6b7b7aca79e847b442cbd2305427d91fe5d70
>     http://autobuild.buildroot.net/results/1cd5a82a0e799aa5027e2e2c03b246332cc3a15d
>     http://autobuild.buildroot.net/results/d7ec878907f714377c83e9a496e97cbf9382d787
>     http://autobuild.buildroot.net/results/1c7f0c1b3ce4871cd87bd6059b1f0a6dc4e74a9c
>     http://autobuild.buildroot.net/results/196b81d580325607c8da90beeb79e1f6b8ab8b47
>     http://autobuild.buildroot.net/results/f90f7b4ac710b56686635f8ae27059c11b963e47
> 
> Signed-off-by: Carlos Santos <unixmania at gmail.com>
> ---
>  package/tpm2-tss/tpm2-tss.mk | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/package/tpm2-tss/tpm2-tss.mk b/package/tpm2-tss/tpm2-tss.mk
> index 425a6703af..80bd18995b 100644
> --- a/package/tpm2-tss/tpm2-tss.mk
> +++ b/package/tpm2-tss/tpm2-tss.mk
> @@ -11,6 +11,12 @@ TPM2_TSS_LICENSE_FILES = LICENSE
>  TPM2_TSS_INSTALL_STAGING = YES
>  TPM2_TSS_DEPENDENCIES = liburiparser openssl host-pkgconf
>  TPM2_TSS_CONF_OPTS = --with-crypto=ossl --disable-doxygen-doc --disable-defaultflags
> +TPM2_TSS_AUTORECONF = YES
> +
> +define TPM2_TSS_NO_CXX
> +	$(SED) /^AC_PROG_CXX$$/d $(@D)/configure.ac
> +endef

We try to avoid sed-ing source code, especially when such tweakign is
not even conditional. Please use a patch for that.

Regards,
Yann E. MORIN.

> +TPM2_TSS_POST_PATCH_HOOKS += TPM2_TSS_NO_CXX
>  
>  # uses C99 code but forgets to pass -std=c99 when --disable-defaultflags is used
>  TPM2_TSS_CONF_ENV += CFLAGS="$(TARGET_CFLAGS) -std=c99"
> -- 
> 2.18.1
> 
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