Re: [CMake] Problem with CHECK_FUNCTION_EXISTS and strcasecmp
On 03/13/2010 01:03 PM, Mateusz Loskot wrote: Michael Surette wrote: I am updating the CMake build files for a cross-platform project. One of the tests is for strcasecmp for which I use CHECK_FUNCTION_EXISTS. If it's not found the code generates its own function by that name. This works well with GCC under Linux, including cross-compiling with MinGW, as well as MinGW under Windows. Testing this with MSVS 2008 Express under Windows XP, it fails to find the function but gives errors and fails when I try to build. If I manually edit the config.h file generated by CMake so that it misreports that there is a strcasecmp function available it compiles well. My conclusion is that either this function exists or a macro is defining it, but it's not being found by CHECK_FUNCTION_EXISTS. I've greped through the header files, but find no reference to it. How can I find this function reliably? CMake macro is right because Visual C++ does not define strcasecmp. This function is defined by POSIX (not even C99). Visual C++ does not implement POSIX. For Visual C++, you should look for equivalents, it is: _stricmp or _strnicmp Best regards, Thank you for the prompt answer. The problem isn't about standards or whether or not Visual C++ defines strcasecmp, but that it handles it in a way that isn't compatible with the CMake test. The whole idea of detecting resources is about working around missing functions and defining the function yourself should be a valid solution, regardless of the standards supported. CMake detects whether or not that fuction exists and sets a variable. When the code is compiled our own version of strcasecmp is #defined in depending on that variable. This is a straightforward solution to a simple problem. If Visual C++ really didn't define strcasecmp that would be the end of it. With observation, I have seen that Visual C++ automatically converts calls to strcasecmp to be calls to _stricmp. This makes things messy, because even though the function isn't officially there, we get compile errors when we try to define it for ourselves and none when we don't. This is a cross platform project and Visual C++ is only one of the many targets we want to work. Visual C++ will compile the project without code changes as long as we assume that it does have a strcasecmp function, which as you pointed out, isn't true. IMHO, this is the sort of thing that should be handled by CMake, not code changes. Based on your information, I have added a check for _stricmp. When the CMake script detects either strcasecmp or _stricmp it turns off inserting our own strcasecmp. This solution builds well, although a check for the compiler itself would probably be a better way. Thanks for steering me in the right direction. Mike ___ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Follow this link to subscribe/unsubscribe: http://www.cmake.org/mailman/listinfo/cmake
[CMake] Windows/VC9: How to set a global include path?
Hi there!
Is it possible to set an global include path as environment variable
for cmake? I want cmake to search the path for include files when
using the find_package command.
At the moment I have the following line in my CMakeLists.txt
set(CMAKE_INCLUDE_PATH "C:/Program Files/Microsoft
SDKs/Windows/v6.0A/Include" ${CMAKE_INCLUDE_PATH})
Which, well.. works, but is kinda hacky. Is it possible to set this as
an environment variable for cmake? Or any way to setup this before
configuring without editing the CMakeLists.txt?
Would be nice if someone had a suggestion for my problem.
Regards,
Dennis
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Re: [CMake] CTest/CDash and git
On Thursday 22 October 2009 23:23:56 Andrew Maclean wrote: > I guess the subject says it all. What is the status of using CMake, > Ctest and CDash with git? Hi, I've spent the whole afternoon writing a working CTest script which can checkout a git repository build and test it and submit to CDash. As this isn't documented I've read the source code of CTest to figure out the variables. I hope this helps other people to get it working. Here is my working script: http://dev.libssh.org/browser/tests/ctest-default.cmake -- andreas ___ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Follow this link to subscribe/unsubscribe: http://www.cmake.org/mailman/listinfo/cmake
Re: [CMake] Problem with CHECK_FUNCTION_EXISTS and strcasecmp
Michael Surette wrote: > I am updating the CMake build files for a cross-platform project. One > of the tests is for strcasecmp for which I use CHECK_FUNCTION_EXISTS. If > it's not found the code generates its own function by that name. > > This works well with GCC under Linux, including cross-compiling with > MinGW, as well as MinGW under Windows. > > Testing this with MSVS 2008 Express under Windows XP, it fails to find > the function but gives errors and fails when I try to build. > > If I manually edit the config.h file generated by CMake so that it > misreports that there is a strcasecmp function available it compiles well. > > My conclusion is that either this function exists or a macro is defining > it, but it's not being found by CHECK_FUNCTION_EXISTS. I've greped > through the header files, but find no reference to it. > > How can I find this function reliably? CMake macro is right because Visual C++ does not define strcasecmp. This function is defined by POSIX (not even C99). Visual C++ does not implement POSIX. For Visual C++, you should look for equivalents, it is: _stricmp or _strnicmp Best regards, -- Mateusz Loskot, http://mateusz.loskot.net Charter Member of OSGeo, http://osgeo.org ___ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Follow this link to subscribe/unsubscribe: http://www.cmake.org/mailman/listinfo/cmake
[CMake] Problem with CHECK_FUNCTION_EXISTS and strcasecmp
I am updating the CMake build files for a cross-platform project. One of the tests is for strcasecmp for which I use CHECK_FUNCTION_EXISTS. If it's not found the code generates its own function by that name. This works well with GCC under Linux, including cross-compiling with MinGW, as well as MinGW under Windows. Testing this with MSVS 2008 Express under Windows XP, it fails to find the function but gives errors and fails when I try to build. If I manually edit the config.h file generated by CMake so that it misreports that there is a strcasecmp function available it compiles well. My conclusion is that either this function exists or a macro is defining it, but it's not being found by CHECK_FUNCTION_EXISTS. I've greped through the header files, but find no reference to it. How can I find this function reliably? Mike ___ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Follow this link to subscribe/unsubscribe: http://www.cmake.org/mailman/listinfo/cmake
[CMake] New FindXXX modules for XUL and NSPR
Hi, I've been working on some FindXXX modules for XUL ( https://developer.mozilla.org/En/XUL ) and for its dependency: NSPR ( http://www.mozilla.org/projects/nspr/ ) and I'm now searching for some feedback on them. I've already talked a bit about it and about a submodule I had to write in a previous thread: http://www.cmake.org/pipermail/cmake/2010-March/035554.html You can get the modules and an example project here: http://code.google.com/p/soupcon/source/browse/#svn/trunk/findxul If anyone is interested in those modules, please let me know. Guillaume ___ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Follow this link to subscribe/unsubscribe: http://www.cmake.org/mailman/listinfo/cmake
