Public SourceMage Discussion List

[Paul Vinogradov <vin.public AT gmail.com>]

A changelog entry maybe?

В Sat, 22 Mar 2014 05:17:22 +0900
Remko van der Vossen <wich AT yuugen.jp> пишет:

> as_needed will add -Wl,--as-needed to LDFLAGS, which will cause the linker 
> to
> emit DT_NEEDED entries only for directly used libraries. This prevents
> programs and libraries that only indirectly depend on some library from
> breaking when that library has an soname change. A scenario which is very
> common with libtool using build processes.
> ---
>  usr/sbin/sorcery                   | 4 +++-
>  var/lib/sorcery/modules/libsorcery | 7 ++++++-
>  2 files changed, 9 insertions(+), 2 deletions(-)
> 
> diff --git a/usr/sbin/sorcery b/usr/sbin/sorcery
> index 53bc512..c58f921 100755
> --- a/usr/sbin/sorcery
> +++ b/usr/sbin/sorcery
> @@ -750,6 +750,7 @@ optimization_menu(){
>    local    SPEEDY_HELP="Optimize generated code, conflicts with
> 'tiny' (CFLAGS=$FAST)" local     STRIP_HELP="Remove all symbol table and
> relocation (debugging) information (LDFLAGS=-s)" local
> TINY_HELP="Optimize to smaller generated code, conflicts with
> 'speedy' (CFLAGS=$SMALL)"
> +  local AS_NEEDED_HELP="Only emit DT_NEEDED entries for directly used
> libraries (LDFLAGS=-Wl,--as-needed)" 
>    if  OPTIMIZATIONS=`eval $DIALOG '  --title  "$OPT_TITLE"     \
>                                --no-cancel               \
> @@ -762,7 +763,8 @@ optimization_menu(){
>          "risky"     "          +speed"  "$RISKY"     "$RISKY_HELP"     \
>          "speedy"    "  +size  ++speed"  "$SPEEDY"    "$SPEEDY_HELP"    \
>          "strip"     " --size"           "$STRIP"     "$STRIP_HELP"     \
> -        "tiny"      "  -size   +speed"  "$TINY"      "$TINY_HELP"'`
> +        "tiny"      "  -size   +speed"  "$TINY"      "$TINY_HELP"      \
> +        "as_needed" "only direct libs"  "$AS_NEEDED" "$AS_NEEDED_HELP"'`
>    then
>  
>      OPTIMIZATIONS=`echo  ${OPTIMIZATIONS}  |  tr  '\n'  ' '`
> diff --git a/var/lib/sorcery/modules/libsorcery
> b/var/lib/sorcery/modules/libsorcery index 2abd865..c89f0ae 100755
> --- a/var/lib/sorcery/modules/libsorcery
> +++ b/var/lib/sorcery/modules/libsorcery
> @@ -617,7 +617,7 @@ function optimize()  {
>    debug "libsorcery" "In optimize()"
>  
>    unset  CFLAGS CXXFLAGS LDFLAGS CPPFLAGS
> -  unset  FAST PRELINK RISKY SMALL SPEEDY STRIP TINY
> +  unset  FAST PRELINK RISKY SMALL SPEEDY STRIP TINY AS_NEEDED
>  
>    # if user specified --no-opts then use only the args from the command 
> line
>    # otherwise do the normal stuff
> @@ -663,6 +663,11 @@ function optimize()  {
>            TINY="on"
>            ;;
>  
> +        as_needed)
> +          LDFLAGS="$LDFLAGS -Wl,--as-needed"
> +          AS_NEEDED="on"
> +          ;;
> +
>        esac
>      done
>      # use echo to crunch all the whitespace out for broken configure 
> scripts


-- 
Sincerely yours Paul Vinogradov

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