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Re: Tune rpath by env. variable

From: Pavel Raiskup
Subject: Re: Tune rpath by env. variable
Date: Tue, 20 Jan 2015 07:40:20 +0100
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On Saturday 13 of December 2014 18:58:58 Pavel Raiskup wrote:
> On Friday 12 of December 2014 11:17:03 Gary V. Vaughan wrote:
> > I'll commit a follow on patch, to tweak it like this, later today.
> Thanks for the patch!  It is almost perfect.  During testing I noted that
> there is still one dollar sign not substituted with quadrigraph.  Patch
> 0001 attached.
Sorry for not pinging you because of this issue before the 2.4.5 release,
pinging now to get it fixed at least in 'master'.  The LT_SYS_LIBRARY_PATH
variable is probably completely broken.  Current problem:

  $ LT_SYS_LIBRARY_PATH=/lib64: ./configure
  checking dynamic linker characteristics... GNU/Linux
  ./configure: line 8532: @1": command not found
  ./configure: eval: line 8532: unexpected EOF while looking for matching `"'
  ./configure: eval: line 8533: syntax error: unexpected end of file
  checking how to hardcode library paths into programs... immediate
  checking for shl_load... no

> Also, I noted having LT_SYS_SEARCH_PATH="/lib64:" specified in
> does not change libtool's content;  it the LT_SYS_LIBRARY_PATH default
> value stays empty.  I would like to have it fixed before 2.4.5, if
> possible, because I would like to enable something like the following in
> our default /usr/share/ file:
>   if $arch_64bit; then
>     : ${LT_SYS_LIBRARY_PATH="/lib64:/usr/lib64:"}
>   fi
> Also, I'm not sure whether we should touch the lt_cv_sys_*.  That should
> not hurt too much but I would feel quite more safe if we use separate
> variable and let the lt_cv_* for existing workarounds in the wild.
> Something like the attachment 0002 would be nice to have pushed.

This would be nice to have it in git also.  The LT_SYS_SEARCH_PATH does
not survive automatic re-autoconf of configure script:

  // libtool after LT_SYS_SEARCH_PATH="/lib64:"

  # Configured defaults for sys_lib_dlsearch_path munging.
  : ${LT_SYS_LIBRARY_PATH="/lib64:"}

  // libtool after 'touch ; make'

  # Configured defaults for sys_lib_dlsearch_path munging.
  : ${LT_SYS_LIBRARY_PATH="/lib64:"}

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