Virtual memory range for PCH exceeded on MSVC

[Jing Dong]

This error blocks compile on my windows machine (Visual Stdio 2015).

• Wondering any other windows user see this?
• Just add suggested command line option to fix?

1>c1xx : error C3859: virtual memory range for PCH exceeded; please recompile with a command line option of '-Zm295' or greater
1>c1xx : fatal error C1076: compiler limit: internal heap limit reached; use /Zm to specify a higher limit

[Jing Dong]

add suggested flags by

if (MSVC)
    add_definitions(-Zm295)
endif()

does fix my problem. @dellaert if you like this option I can create a pull request.

[José Luis Blanco-Claraco]

It works nice with VS2017... so, what about?

if(MSVC_VERSION LESS 1910) # older thanVS2017
...

[Frank Dellaert]

PR would be nice :-)

[Jing Dong]

Fix by pull-request 346

[Frank Dellaert]

Fixed by PR #346