Re: [Boost-users] Building boost b2 zlib options

Subject: Re: [Boost-users] Building boost b2 zlib options
From: Roger Leigh (rleigh_at_[hidden])
Date: 2017-11-20 21:56:23

On 20/11/2017 18:21, Michael Powell via Boost-users wrote:
> On Mon, Nov 20, 2017 at 12:20 PM, Michael Powell <mwpowellhtx_at_[hidden]> wrote:
>> Hello,
>>
>> I am building Boost and making progress. Thus far wondering what
>> options to provide my B2. I added the zlib include path to the
>> include="...;/path/to/zlib;...", and now seems to be wanting the LIB
>> path?
> 
> So far, from what I can tell in my logs, zlib.h cannot be found? This
> in spite of the fact I've provided the options:
> 
> zlib_h.cpp
> /path/to\build\boost\boost\bin.v2\standalone\ac\zlib_h.cpp(1): fatal
> error C1083: Cannot open include file: 'zlib.h': No such file or
> directory
> ...failed compile-c-c++
> /path/to\build\boost\boost\bin.v2\standalone\ac\msvc-14.0\debug\address-model-64\link-static\threading-multi\zlib_h.obj...
> ...failed updating 1 target...
> ...found 6 targets...
> ...updating 2 targets...
> 
> However, I certain I've provided that in my CMake B2 options:
> 
> set (B2_INCLUDE "${PLATFORM_SDK_PATH};${REPOS_DIR}/${ZLIB_TAG}")
> # B2 include: >>> C:/Program Files (x86)/Windows
> Kits/10/Include/10.0.10240.0/ucrt;/path/to/repos/zlib-1.2.11 <<<
> 
> And which the paths really are there after their own CMake custom
> targets. I checked, literally every step of the way.

https://github.com/ome/ome-cmake-superbuild/blob/master/packages/boost/build.cmake

-sBZIP2_BINARY=${BZIP2_BINARY}
-sBZIP2_INCLUDE=${WINDOWS_INCLUDE_DIR}
-sBZIP2_LIBPATH=${WINDOWS_LIB_DIR}
-sZLIB_BINARY=${ZLIB_BINARY}
-sZLIB_INCLUDE=${WINDOWS_INCLUDE_DIR}
-sZLIB_LIBPATH=${WINDOWS_LIB_DIR}

Note that when I first developed this script, the b2 options for BZip2 
and ZLib were broken.  You'll notice that the include and lib dirs above 
are identical.  That's because it used to break horribly if they 
differered; it may well still be the case.  If you haven't tried 
building with both zlib and bzip2 installed into the same place, give it 
a go and see if this workaround helps.

Also note 
https://github.com/ome/ome-cmake-superbuild/tree/master/packages/bzip2/patches 
which adds a CMake build for bzip2.  You might find it helpful with a 
current Visual Studio version.

Regards,
Roger