- 2015.06.16 17:51 "Re: [Tiff] CMake support for building libtiff", by Lee Howard
- 2015.06.17 03:16 "Re: [Tiff] CMake support for building libtiff", by Bob Friesenhahn
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2015.06.17 22:38 "Re: [Tiff] CMake support for building libtiff", by Roger Leigh
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2015.06.18 22:08 "Re: [Tiff] CMake support for building libtiff", by Roger Leigh
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2015.06.19 11:54 "Re: [Tiff] CMake support for building libtiff", by Roger Leigh
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2015.07.02 07:10 "[Tiff] [patch] Additional CMake fixes", by Roger Leigh
- 2015.07.04 22:10 "Re: [Tiff] [patch] Additional CMake fixes", by Bob Friesenhahn
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2015.08.29 11:34 "[Tiff] [patch] Docs for cmake build and some minor tweaks", by Roger Leigh
- 2015.08.29 15:36 "Re: [Tiff] [patch] Docs for cmake build and some minor tweaks", by Bob Friesenhahn
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2015.08.31 15:12 "[Tiff] [patch] cmake fixes", by
- 2015.08.31 15:34 "Re: [Tiff] [patch] cmake fixes", by Bob Friesenhahn
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2015.07.02 07:10 "[Tiff] [patch] Additional CMake fixes", by Roger Leigh
- 2015.06.19 13:53 "Re: [Tiff] CMake support for building libtiff", by Rhys Thomas
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2015.06.19 11:54 "Re: [Tiff] CMake support for building libtiff", by Roger Leigh
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2015.06.19 13:41 "Re: [Tiff] 4.0.4beta: Symbol differences on Unix and Windows", by Bob Friesenhahn
- 2015.06.18 21:56 "[Tiff] 4.0.4beta: Symbol differences on Unix and Windows", by Roger Leigh
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2015.06.18 22:08 "Re: [Tiff] CMake support for building libtiff", by Roger Leigh
- 2015.06.25 02:32 "Re: [Tiff] CMake support for building libtiff", by Bob Friesenhahn
2015.06.23 13:01 "Re: [Tiff] 4.0.4beta: Symbol differences on Unix and Windows", by Bob Friesenhahn
Linux/FreeBSD/ELF exports all non-static symbols by default and this is usually unwanted. In this case, Windows is ahead of default ELF linkage.
Wait, what? You can either use GCC Visibility[1] or linker version script that are already in use for GNU ld in libtiff/Makefile.am. It's just the libtiff.map that's broken, since it exports all symbols by default since it contains instructions to export all symbols:
Yes, of course. Unfortunately, this should have been done when 4.0.0 was first produced. If we do it now, then it changes the ABI and something might break. There is also risk of some problem on non-Linux systems that would need to be worked out. Libtiff can't be dependent on GCC so it would need to use the linker map approach.
We could add a configure option to enable it.
Bob
--
Bob Friesenhahn
bfriesen@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer, http://www.GraphicsMagick.org/