On 2017-08-14 15:33-0600 d...@ucar.edu wrote:
I have the following situation using cmake
1. Running windows 7
2. Both cygwin and visual studio (VS) community edition (version 14)
installed.
3. I am building with visual studio as my compiler.
4. Cygwin has winsock2.h in /usr/include/w32api
The VS community edition does not have winsock2.h
5. Note that some older (non community edition) versions of VS do have
winsock2.h defined.
6. CHECK_INCLUDE_FILE("winsock2.h", HAVE_WINSOCK2_H) returns true
because it is finding the cygwin version instead of the VS version.
The question is how do I see if the installed VS has winsock2.h defined while
ignoring any cygwin version.
The reason I need to know this is that the presence of winsock2.h in VS is
causing a conflict with another package (libcurl). I can work around the
conflict if I know if the VS installation has winsock2.h (or not).
I speculate that I need to prevent CMake from searching w32api.
I considered using CMAKE_REQUIRED_INClUDES to remove a directory
(/usr/include/w32api), but I can see no way to do that.
Suggestions?
CMake pays close attention to environment variables (e.g., PATH) when
finding what it thinks are system files. See the documentation of
find_path, find_file, find_library, etc. So make sure there are no
mentions of Cygwin locations in any of your enviroment variables to
reduce the chances that Cygwin locations contaminate your VS build.
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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