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From: | Jack Bates |
Subject: | Re: How can I keep -lstdc++ out of $postdeps? |
Date: | Fri, 24 Feb 2017 08:53:22 -0700 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Icedove/45.6.0 |
On 23/02/17 05:55 PM, Thomas Jahns wrote:
On 02/23/2017 05:01 PM, Jack Bates wrote:On 22/02/17 12:16 PM, Mike Frysinger wrote:On 22 Feb 2017 10:32, Jack Bates wrote:How can I avoid dynamically linking with libstdc++? or, how can I keep -lstdc++ out of $postdeps?let's back up. what is it you're actually trying to do ? you want to create a statically linked C++ program ? you want to link a C program ? something else ?Well, I'm asking for a friend [1]. It sounds like he's got one version of libstdc++ in his build infrastructure and another (older) version on his production machines. He wants to avoid using the older version (I think because of an issue with the STL) which is why he's trying to keep -lstdc++ out of the linker arguments. Regardless of whether -static-libstdc++ is the solution he ultimately runs with, I think he's confused about _LT_SYS_HIDDEN_LIBDEPS -- as am I. The underlying compiler/linker seems to do a more refined job of adding/not adding these dependencies? Is there a recommended way to disable _LT_SYS_HIDDEN_LIBDEPS?I think the path of least resistance is still to install the newer libstc++ (CentOS can use newer developer tools [1] and has corresponding library packages to my knowledge).
Yes -- I don't know why he prefers to statically link, instead of upgrading the production machines -- although I've heard there are 1,000 production machines, and I suspect there's a corporate policy limiting what's installed on them, whereas a statically linked binary is acceptable ... ¯\_(ツ)_/¯
Regardless, I'm curious why _LT_SYS_HIDDEN_LIBDEPS adds -lstdc++ etc. itself, instead of deferring to the compiler/linker -- Is this behavior obsolete? Is there a recommended way to disable it? It's surprising that the -static-libstdc++ option is broken, no?
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