[Buildroot] [PATCH 1/1] mtd: fix build on riscv

Arnout Vandecappelle arnout at mind.be
Tue Nov 20 23:34:30 UTC 2018



On 20/11/2018 19:52, Fabrice Fontaine wrote:
> Define _REENTRANT otherwise pthread detection will fail
> 
> Fixes:
>  - http://autobuild.buildroot.org/results/b0e7978a997a2aae383161455b5d898b8c28e2e1
> 
> Signed-off-by: Fabrice Fontaine <fontaine.fabrice at gmail.com>
> ---
>  package/mtd/mtd.mk | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/package/mtd/mtd.mk b/package/mtd/mtd.mk
> index 13e501fc33..2d627ffa3d 100644
> --- a/package/mtd/mtd.mk
> +++ b/package/mtd/mtd.mk
> @@ -11,6 +11,13 @@ MTD_LICENSE = GPL-2.0
>  MTD_LICENSE_FILES = COPYING
>  MTD_INSTALL_STAGING = YES
>  
> +# gcc on riscv doesn't define _REENTRANT when -pthread is passed while
> +# it should. Compensate this deficiency here otherwise mtd configure
> +# script doesn't find that thread support is enabled.
> +ifeq ($(BR2_TOOLCHAIN_HAS_THREADS):$(BR2_riscv),y:y)
> +MTD_CONF_ENV += CFLAGS="$(TARGET_CFLAGS) -D_REENTRANT"

 Patching gcc sounds more and more attractive...

 Regards,
 Arnout

> +endif
> +
>  ifeq ($(BR2_PACKAGE_MTD_JFFS_UTILS),y)
>  MTD_DEPENDENCIES += zlib lzo host-pkgconf
>  MTD_CONF_OPTS += --with-jffs
> 



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