Re: [Plplot-devel] wingcc and wingdi build bugs

[Alan W. I. <ir...@be...>]

On 2017-10-05 09:10+0100 Phil Rosenberg wrote:

> On 5 October 2017 at 04:10, Alan W. Irwin <ir...@be...> wrote:
>> The cmake messages above come from cmake/modules/wingcc.cmake and the
>> first part of the relevant logic is
>>
>>   find_library(GDI32_LIBRARY gdi32 HINTS ${MINGWLIBPATH} ${BORLANDLIBPATH})
>>   if(GDI32_LIBRARY)
>>       find_library(COMDLG32_LIBRARY comdlg32 HINTS ${MINGWLIBPATH}
>> ${BORLANDLIBPATH})
>>   endif(GDI32_LIBRARY)
>>

> gdi32.dll and comdlg32 are both in the standard system directory
> c:/windows/system32/

>> If both those libraries are installed on your system but in a
>> non-standard location that CMake doesn't know about, then
>> you may have to give CMake a hint where they are by setting
>> CMAKE_LIBRARY_PATH appropriately.

Hi Phil:

One thing I noticed from your previous post that included all the
information from cmake was your cmake version was 3.7.1. My impression
is there has been a lot of churn in the various Windows IDE generators
since 3.7.1 due to lots of bug fixing so this issue might be solved
simply by downloading and using the latest binary version of CMake
(3.9.4) directly from Kitware.

But if you would prefer to stick to 3.7.1 for now or if 3.9.4 still
has the same symptoms, then from the above collection of information I
suggest you add c:/windows/system32/ to the CMAKE_LIBRARY_PATH
information you already have (on Linux the format is a colon-separated
list of library locations, but on Windows that may be a
semicolon-separated list), and I am virtually positive that will solve
the library finding issue for wingcc.  And if you set -DPLD_wingdi=ON,
it should also solve it for wingdi (since that device uses the same
libraries and same library finding logic as wingcc).

By the way I am virtually positive that if CMake cannot find these
standard system libraries in one of the expected standard locations
without user help via CMAKE_LIBRARY_PATH, then that is a clear CMake
bug (likely for the particular generator you are using). So if you
confirm that this bug still persists with 3.9.4 directly downloaded
from Kitware, then to help other users in your position, I plan to
follow up with the CMake developers about this bug, but before
starting that discussion I will need to know the exact
generator you are using for your Windows IDE.

Alan
__________________________
Alan W. Irwin

Astronomical research affiliation with Department of Physics and Astronomy,
University of Victoria (astrowww.phys.uvic.ca).

Programming affiliations with the FreeEOS equation-of-state
implementation for stellar interiors (freeeos.sf.net); the Time
Ephemerides project (timeephem.sf.net); PLplot scientific plotting
software package (plplot.sf.net); the libLASi project
(unifont.org/lasi); the Loads of Linux Links project (loll.sf.net);
and the Linux Brochure Project (lbproject.sf.net).
__________________________

Linux-powered Science
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