[Buildroot] Several issues with building multiple "projects" for same architecture

[Ulf Samuelsson <ulf@atmel.com>]

m?n 2007-10-29 klockan 10:55 -0500 skrev Jonathan Nalley:
> I am using the buildroot to build for several different boards, some
> of them have the same CPU architecture (PPC405GP/EP).  I have noticed
> some issues with the "project" concept in the buildroot.  Since the
> builds are for the same architecture the toolchain is created under
> "build_powerpc".  Everything works fine for the first board, but for
> subsequent builds for different "project" names things are missing
> under "project_build_powerpc/PROJECT_NAME/root".  Specifically: 
> 
> /root/lib/libgcc_s.so
> /root/usr/lib/libstdc++.so
> /root/usr/sbin/ethtool
> 
> This is because the make files that install those files check for:
> 
> $(GCC_BUILD_DIR2)/.libs_installed
> 
> and
> 
> $(ETHTOOL_DIR)/.installed 
> 
> (There are several other packages whose make files also behave this
> way)
> 
> The problem with this is that the files are only installed for the
> first project, subsequent projects see the .installed file in the
> BUILD directory and think that files have already been copied to the
> TARGET directory.  Is there a reason that the buildroot relies
> on .installed files instead of the actual target file? 
> 
> For example to fix ethtool I made the following change:
> 
> diff -r ff93bc269d3d buildroot/package/ethtool/ethtool.mk
> --- a/buildroot/package/ethtool/ethtool.mk      Mon Oct 29 10:03:23
> 2007 -0500
> +++ b/buildroot/package/ethtool/ethtool.mk      Mon Oct 29 10:50:36
> 2007 -0500 
> @@ -33,11 +33,11 @@ ETHTOOL_CAT:=$(ZCAT)
>  $(ETHTOOL_DIR)/ethtool: $(ETHTOOL_DIR)/.configured
>         $(MAKE) CC=$(TARGET_CC) -C $(ETHTOOL_DIR)
>  
> -$(ETHTOOL_DIR)/.installed: $(ETHTOOL_DIR)/ethtool
> +$(TARGET_DIR)/usr/sbin/ethtool: $(ETHTOOL_DIR)/ethtool 
>         cp $(ETHTOOL_DIR)/ethtool $(TARGET_DIR)/usr/sbin
>         touch $@
>  
> -ethtool: uclibc $(ETHTOOL_DIR)/.installed
> +ethtool: uclibc $(TARGET_DIR)/usr/sbin/ethtool
>  
>  ethtool-source: $(DL_DIR)/$(ETHTOOL_SOURCE) 
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Here is a first attempt to fix this,
I have not tested it yet myself though.

The idea is to create a $(DEP_DIR) directory in $(PROJECT_BUILD_DIR)
and then to generate a $(<package>).installed in this directory.


-- 
Best Regards
Ulf Samuelsson
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