Re: [Buildroot] [PATCH 1/1] package/binutils: zlib is mandatory

["Yann E. MORIN" <yann.morin.1998@free.fr>]

Fabrice, All,

On 2021-11-10 18:46 +0100, Fabrice Fontaine spake thusly:
> As found out by Yann [1], if zlib is not provided by the system,
> binutils will use a bundled version.

This is not exactly true: indeed, even when zlib is provided by the
system, binutils *will* use its bundled copy, *unless* explicitly told
not to.

> So use --with-system-zlib which is
> available since version 2.21 and
> https://github.com/bminor/binutils-gdb/commit/700d40ca16eb3ba1ecc1e602cb3eec175bdf70f0
> 
> This will fix the following build failure with oprofile:

... in a static configuration without zlib enabled.

I've extended the commit log with those two refinements, and applied to
master, thanks.

Regards,
Yann E. MORIN.

> checking for bfd_openr in -lbfd... no
> checking for compress in -lz... no
> configure: error: libz library not found; required by libbfd
> 
> As found out by Arnout [1], this fails infrequently because static is
> already pretty rare, but in addition zlib is almost always selected by
> some other package.
> 
> Fixes:
>  - http://autobuild.buildroot.org/results/0e1d16dfbb455a08db80ac5d35613908c3b4163f
> 
> [1] https://patchwork.ozlabs.org/project/buildroot/patch/20211030214734.2154583-1-fontaine.fabrice@gmail.com/
> 
> Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
> ---
>  package/binutils/Config.in   | 1 +
>  package/binutils/binutils.mk | 7 ++-----
>  2 files changed, 3 insertions(+), 5 deletions(-)
> 
> diff --git a/package/binutils/Config.in b/package/binutils/Config.in
> index e17a8ec65a..5e1a769998 100644
> --- a/package/binutils/Config.in
> +++ b/package/binutils/Config.in
> @@ -2,6 +2,7 @@ config BR2_PACKAGE_BINUTILS
>  	bool "binutils"
>  	depends on !BR2_nios2
>  	depends on BR2_USE_WCHAR
> +	select BR2_PACKAGE_ZLIB
>  	help
>  	  Install binutils on the target
>  
> diff --git a/package/binutils/binutils.mk b/package/binutils/binutils.mk
> index bfad25422d..13f61be035 100644
> --- a/package/binutils/binutils.mk
> +++ b/package/binutils/binutils.mk
> @@ -25,7 +25,7 @@ BINUTILS_SITE ?= $(BR2_GNU_MIRROR)/binutils
>  BINUTILS_SOURCE ?= binutils-$(BINUTILS_VERSION).tar.xz
>  BINUTILS_EXTRA_CONFIG_OPTIONS = $(call qstrip,$(BR2_BINUTILS_EXTRA_CONFIG_OPTIONS))
>  BINUTILS_INSTALL_STAGING = YES
> -BINUTILS_DEPENDENCIES = $(TARGET_NLS_DEPENDENCIES)
> +BINUTILS_DEPENDENCIES = zlib $(TARGET_NLS_DEPENDENCIES)
>  BINUTILS_MAKE_OPTS = LIBS=$(TARGET_NLS_LIBS)
>  BINUTILS_LICENSE = GPL-3.0+, libiberty LGPL-2.1+
>  BINUTILS_LICENSE_FILES = COPYING3 COPYING.LIB
> @@ -51,6 +51,7 @@ BINUTILS_CONF_OPTS = \
>  	--target=$(GNU_TARGET_NAME) \
>  	--enable-install-libiberty \
>  	--enable-build-warnings=no \
> +	--with-system-zlib \
>  	$(BINUTILS_DISABLE_GDB_CONF_OPTS) \
>  	$(BINUTILS_EXTRA_CONFIG_OPTIONS)
>  
> @@ -74,10 +75,6 @@ ifeq ($(BR2_ARM_CPU_ARMV7M)$(BR2_OPTIMIZE_S),yy)
>  BINUTILS_CONF_ENV += CFLAGS="$(TARGET_CFLAGS) -O2"
>  endif
>  
> -ifeq ($(BR2_PACKAGE_ZLIB),y)
> -BINUTILS_DEPENDENCIES += zlib
> -endif
> -
>  # "host" binutils should actually be "cross"
>  # We just keep the convention of "host utility" for now
>  HOST_BINUTILS_CONF_OPTS = \
> -- 
> 2.33.0
> 
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