Re: [CMake] Trouble with FindPNG module
Try adding this to your toolchain file: set( CMAKE_C_LIBRARY_ARCHITECTURE "i386-linux-gnu" ) set( CMAKE_CXX_LIBRARY_ARCHITECTURE "i386-linux-gnu" ) From: rcdai...@gmail.com on behalf of Robert Dailey Sent: April 24, 2017 10:22:53 AM To: Andrew Fuller Cc: CMake Subject: Re: [CMake] Trouble with FindPNG module The output is: x86_64-linux-gnu How can I tell CMake to look for 32-bit libraries? I would like to force this from my toolchain file (which I posted a few minutes ago) On Mon, Apr 24, 2017 at 10:16 AM, Andrew Fuller wrote: > Where did the library get installed on your system? What's the value of > CMAKE__LIBRARY_ARCHITECTURE? > > > Since you're on a 64-bit system, I'd expect CMake to be looking for 64-bit > libraries unless you've told it otherwise. > > > From: CMake on behalf of Robert Dailey > > Sent: April 24, 2017 7:54:18 AM > To: CMake; CMake Developers > Subject: Re: [CMake] Trouble with FindPNG module > > Sorry to bump; any info on this? I'm completely blocked :-( > > On Fri, Apr 21, 2017 at 4:48 PM, Robert Dailey > wrote: >> I'm running CMake 3.8.0 on Ubuntu 14. I invoke the following: >> >> find_package(PNG REQUIRED) >> >> Which gives me the output in CMake: >> >> Could NOT find PNG (missing: PNG_LIBRARY) (found version "1.2.50") >> >> The CMakeCache.txt file has these variables set: >> >> PNG_LIBRARY_DEBUG:FILEPATH=PNG_LIBRARY_DEBUG-NOTFOUND >> PNG_LIBRARY_RELEASE:FILEPATH=PNG_LIBRARY_RELEASE-NOTFOUND >> PNG_PNG_INCLUDE_DIR:PATH=/usr/include >> >> So it found the headers, but not the libs. Why did it not find the >> libs? Note that my version of Ubuntu is 64-bit, and I've installed the >> 32-bit libs like so: >> >> $ sudo apt-get install libpng12-dev:i386 >> >> Would the find module be confused because it is trying to find the >> 64-bit library? What's the issue? > -- > > Powered by www.kitware.com<http://www.kitware.com> > > Please keep messages on-topic and check the CMake FAQ at: > http://www.cmake.org/Wiki/CMake_FAQ > > Kitware offers various services to support the CMake community. For more > information on each offering, please visit: > > CMake Support: http://cmake.org/cmake/help/support.html > CMake Consulting: http://cmake.org/cmake/help/consulting.html > CMake Training Courses: http://cmake.org/cmake/help/training.html > > Visit other Kitware open-source projects at > http://www.kitware.com/opensource/opensource.html > > Follow this link to subscribe/unsubscribe: > http://public.kitware.com/mailman/listinfo/cmake -- Powered by www.kitware.com Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Kitware offers various services to support the CMake community. For more information on each offering, please visit: CMake Support: http://cmake.org/cmake/help/support.html CMake Consulting: http://cmake.org/cmake/help/consulting.html CMake Training Courses: http://cmake.org/cmake/help/training.html Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Follow this link to subscribe/unsubscribe: http://public.kitware.com/mailman/listinfo/cmake
Re: [CMake] Trouble with FindPNG module
Interestingly, the changes to my toolchain made below work: set( CMAKE_SYSTEM_NAME Linux ) set( CMAKE_SYSTEM_VERSION 1 ) set( CMAKE_SYSTEM_PROCESSOR i386 ) set( CMAKE_C_COMPILER gcc-4.9 ) set( CMAKE_CXX_COMPILER g++-4.9 ) set( CMAKE_C_COMPILER_ARG1 -m32 ) set( CMAKE_CXX_COMPILER_ARG1 -m32 ) The only change here is that I'm using CMAKE_C_COMPILER_ARG1 and CMAKE_CXX_COMPILER_ARG1. These are not documented anywhere. I only found out about them from a post from Bill Hoffman (which I have lost the URL to). Is this the correct toolchain? At least find_package() is properly finding 32-bit libraries now, so I am happy. Should CMAKE_SYSTEM_PROCESSOR be i386 or i686? On Mon, Apr 24, 2017 at 12:22 PM, Robert Dailey wrote: > The output is: > > x86_64-linux-gnu > > How can I tell CMake to look for 32-bit libraries? I would like to > force this from my toolchain file (which I posted a few minutes ago) > > On Mon, Apr 24, 2017 at 10:16 AM, Andrew Fuller wrote: >> Where did the library get installed on your system? What's the value of >> CMAKE__LIBRARY_ARCHITECTURE? >> >> >> Since you're on a 64-bit system, I'd expect CMake to be looking for 64-bit >> libraries unless you've told it otherwise. >> >> >> From: CMake on behalf of Robert Dailey >> >> Sent: April 24, 2017 7:54:18 AM >> To: CMake; CMake Developers >> Subject: Re: [CMake] Trouble with FindPNG module >> >> Sorry to bump; any info on this? I'm completely blocked :-( >> >> On Fri, Apr 21, 2017 at 4:48 PM, Robert Dailey >> wrote: >>> I'm running CMake 3.8.0 on Ubuntu 14. I invoke the following: >>> >>> find_package(PNG REQUIRED) >>> >>> Which gives me the output in CMake: >>> >>> Could NOT find PNG (missing: PNG_LIBRARY) (found version "1.2.50") >>> >>> The CMakeCache.txt file has these variables set: >>> >>> PNG_LIBRARY_DEBUG:FILEPATH=PNG_LIBRARY_DEBUG-NOTFOUND >>> PNG_LIBRARY_RELEASE:FILEPATH=PNG_LIBRARY_RELEASE-NOTFOUND >>> PNG_PNG_INCLUDE_DIR:PATH=/usr/include >>> >>> So it found the headers, but not the libs. Why did it not find the >>> libs? Note that my version of Ubuntu is 64-bit, and I've installed the >>> 32-bit libs like so: >>> >>> $ sudo apt-get install libpng12-dev:i386 >>> >>> Would the find module be confused because it is trying to find the >>> 64-bit library? What's the issue? >> -- >> >> Powered by www.kitware.com >> >> Please keep messages on-topic and check the CMake FAQ at: >> http://www.cmake.org/Wiki/CMake_FAQ >> >> Kitware offers various services to support the CMake community. For more >> information on each offering, please visit: >> >> CMake Support: http://cmake.org/cmake/help/support.html >> CMake Consulting: http://cmake.org/cmake/help/consulting.html >> CMake Training Courses: http://cmake.org/cmake/help/training.html >> >> Visit other Kitware open-source projects at >> http://www.kitware.com/opensource/opensource.html >> >> Follow this link to subscribe/unsubscribe: >> http://public.kitware.com/mailman/listinfo/cmake -- Powered by www.kitware.com Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Kitware offers various services to support the CMake community. For more information on each offering, please visit: CMake Support: http://cmake.org/cmake/help/support.html CMake Consulting: http://cmake.org/cmake/help/consulting.html CMake Training Courses: http://cmake.org/cmake/help/training.html Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Follow this link to subscribe/unsubscribe: http://public.kitware.com/mailman/listinfo/cmake
Re: [CMake] Trouble with FindPNG module
The output is: x86_64-linux-gnu How can I tell CMake to look for 32-bit libraries? I would like to force this from my toolchain file (which I posted a few minutes ago) On Mon, Apr 24, 2017 at 10:16 AM, Andrew Fuller wrote: > Where did the library get installed on your system? What's the value of > CMAKE__LIBRARY_ARCHITECTURE? > > > Since you're on a 64-bit system, I'd expect CMake to be looking for 64-bit > libraries unless you've told it otherwise. > > > From: CMake on behalf of Robert Dailey > > Sent: April 24, 2017 7:54:18 AM > To: CMake; CMake Developers > Subject: Re: [CMake] Trouble with FindPNG module > > Sorry to bump; any info on this? I'm completely blocked :-( > > On Fri, Apr 21, 2017 at 4:48 PM, Robert Dailey > wrote: >> I'm running CMake 3.8.0 on Ubuntu 14. I invoke the following: >> >> find_package(PNG REQUIRED) >> >> Which gives me the output in CMake: >> >> Could NOT find PNG (missing: PNG_LIBRARY) (found version "1.2.50") >> >> The CMakeCache.txt file has these variables set: >> >> PNG_LIBRARY_DEBUG:FILEPATH=PNG_LIBRARY_DEBUG-NOTFOUND >> PNG_LIBRARY_RELEASE:FILEPATH=PNG_LIBRARY_RELEASE-NOTFOUND >> PNG_PNG_INCLUDE_DIR:PATH=/usr/include >> >> So it found the headers, but not the libs. Why did it not find the >> libs? Note that my version of Ubuntu is 64-bit, and I've installed the >> 32-bit libs like so: >> >> $ sudo apt-get install libpng12-dev:i386 >> >> Would the find module be confused because it is trying to find the >> 64-bit library? What's the issue? > -- > > Powered by www.kitware.com > > Please keep messages on-topic and check the CMake FAQ at: > http://www.cmake.org/Wiki/CMake_FAQ > > Kitware offers various services to support the CMake community. For more > information on each offering, please visit: > > CMake Support: http://cmake.org/cmake/help/support.html > CMake Consulting: http://cmake.org/cmake/help/consulting.html > CMake Training Courses: http://cmake.org/cmake/help/training.html > > Visit other Kitware open-source projects at > http://www.kitware.com/opensource/opensource.html > > Follow this link to subscribe/unsubscribe: > http://public.kitware.com/mailman/listinfo/cmake -- Powered by www.kitware.com Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Kitware offers various services to support the CMake community. For more information on each offering, please visit: CMake Support: http://cmake.org/cmake/help/support.html CMake Consulting: http://cmake.org/cmake/help/consulting.html CMake Training Courses: http://cmake.org/cmake/help/training.html Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Follow this link to subscribe/unsubscribe: http://public.kitware.com/mailman/listinfo/cmake
Re: [CMake] Trouble with FindPNG module
Where did the library get installed on your system? What's the value of CMAKE__LIBRARY_ARCHITECTURE? Since you're on a 64-bit system, I'd expect CMake to be looking for 64-bit libraries unless you've told it otherwise. From: CMake on behalf of Robert Dailey Sent: April 24, 2017 7:54:18 AM To: CMake; CMake Developers Subject: Re: [CMake] Trouble with FindPNG module Sorry to bump; any info on this? I'm completely blocked :-( On Fri, Apr 21, 2017 at 4:48 PM, Robert Dailey wrote: > I'm running CMake 3.8.0 on Ubuntu 14. I invoke the following: > > find_package(PNG REQUIRED) > > Which gives me the output in CMake: > > Could NOT find PNG (missing: PNG_LIBRARY) (found version "1.2.50") > > The CMakeCache.txt file has these variables set: > > PNG_LIBRARY_DEBUG:FILEPATH=PNG_LIBRARY_DEBUG-NOTFOUND > PNG_LIBRARY_RELEASE:FILEPATH=PNG_LIBRARY_RELEASE-NOTFOUND > PNG_PNG_INCLUDE_DIR:PATH=/usr/include > > So it found the headers, but not the libs. Why did it not find the > libs? Note that my version of Ubuntu is 64-bit, and I've installed the > 32-bit libs like so: > > $ sudo apt-get install libpng12-dev:i386 > > Would the find module be confused because it is trying to find the > 64-bit library? What's the issue? -- Powered by www.kitware.com<http://www.kitware.com> Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Kitware offers various services to support the CMake community. For more information on each offering, please visit: CMake Support: http://cmake.org/cmake/help/support.html CMake Consulting: http://cmake.org/cmake/help/consulting.html CMake Training Courses: http://cmake.org/cmake/help/training.html Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Follow this link to subscribe/unsubscribe: http://public.kitware.com/mailman/listinfo/cmake -- Powered by www.kitware.com Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Kitware offers various services to support the CMake community. For more information on each offering, please visit: CMake Support: http://cmake.org/cmake/help/support.html CMake Consulting: http://cmake.org/cmake/help/consulting.html CMake Training Courses: http://cmake.org/cmake/help/training.html Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Follow this link to subscribe/unsubscribe: http://public.kitware.com/mailman/listinfo/cmake
Re: [CMake] Trouble with FindPNG module
Sorry to bump; any info on this? I'm completely blocked :-( On Fri, Apr 21, 2017 at 4:48 PM, Robert Dailey wrote: > I'm running CMake 3.8.0 on Ubuntu 14. I invoke the following: > > find_package(PNG REQUIRED) > > Which gives me the output in CMake: > > Could NOT find PNG (missing: PNG_LIBRARY) (found version "1.2.50") > > The CMakeCache.txt file has these variables set: > > PNG_LIBRARY_DEBUG:FILEPATH=PNG_LIBRARY_DEBUG-NOTFOUND > PNG_LIBRARY_RELEASE:FILEPATH=PNG_LIBRARY_RELEASE-NOTFOUND > PNG_PNG_INCLUDE_DIR:PATH=/usr/include > > So it found the headers, but not the libs. Why did it not find the > libs? Note that my version of Ubuntu is 64-bit, and I've installed the > 32-bit libs like so: > > $ sudo apt-get install libpng12-dev:i386 > > Would the find module be confused because it is trying to find the > 64-bit library? What's the issue? -- Powered by www.kitware.com Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Kitware offers various services to support the CMake community. For more information on each offering, please visit: CMake Support: http://cmake.org/cmake/help/support.html CMake Consulting: http://cmake.org/cmake/help/consulting.html CMake Training Courses: http://cmake.org/cmake/help/training.html Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Follow this link to subscribe/unsubscribe: http://public.kitware.com/mailman/listinfo/cmake
[CMake] Trouble with FindPNG module
I'm running CMake 3.8.0 on Ubuntu 14. I invoke the following: find_package(PNG REQUIRED) Which gives me the output in CMake: Could NOT find PNG (missing: PNG_LIBRARY) (found version "1.2.50") The CMakeCache.txt file has these variables set: PNG_LIBRARY_DEBUG:FILEPATH=PNG_LIBRARY_DEBUG-NOTFOUND PNG_LIBRARY_RELEASE:FILEPATH=PNG_LIBRARY_RELEASE-NOTFOUND PNG_PNG_INCLUDE_DIR:PATH=/usr/include So it found the headers, but not the libs. Why did it not find the libs? Note that my version of Ubuntu is 64-bit, and I've installed the 32-bit libs like so: $ sudo apt-get install libpng12-dev:i386 Would the find module be confused because it is trying to find the 64-bit library? What's the issue? -- Powered by www.kitware.com Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Kitware offers various services to support the CMake community. For more information on each offering, please visit: CMake Support: http://cmake.org/cmake/help/support.html CMake Consulting: http://cmake.org/cmake/help/consulting.html CMake Training Courses: http://cmake.org/cmake/help/training.html Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Follow this link to subscribe/unsubscribe: http://public.kitware.com/mailman/listinfo/cmake