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On 08/07/2010 05:58 PM, Alexis Ballier wrote: |
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> On Saturday 07 August 2010 17:45:02 Samuli Suominen wrote: |
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>> Could use eyepair or two to doublecheck the example code in: |
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>> |
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>> [1] http://bugs.gentoo.org/attachment.cgi?id=241779 |
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>> [2] http://bugs.gentoo.org/show_bug.cgi?id=331527 |
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> |
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> You should use AC_TRY_LINK or something similar to check for toolchain |
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> support. Hardcoding a given set of strings matching the version is generally |
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> not a good way of writing a check; if you check something, check it for real. |
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> |
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> Also if you pass -Wl,--as-needed to the compiler that's what you should check |
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> rather than if the supposed linker supports --as-needed; I suppose AC_TRY_LINK |
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> will do that. |
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I tend to agree but have one concern: |
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What if some non-GNU ld's are accepting the syntax of -Wl,--as-needed |
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but is in fact doing something entirely different? |
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I just remember one of our prefix devs, not long ago, saying that |
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happens. I think it was on this ML on different thread but sorry, can't |
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find the post now... |
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Note that flag-o-matic.eclass's check in function no-as-needed() is |
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checking for GNU as well. |
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