Re: [cmake-developers] PATHS guess in find_package ignored with NO_DEFAULT_PATH & CMAKE_FIND_ROOT_PATH_MODE_PACKAGE
> De: "Nils Gladitz" <nilsglad...@gmail.com> > À: "Julien Schueller" <schuel...@phimeca.com>, "cmake-developers" > <cmake-developers@cmake.org> > Envoyé: Vendredi 1 Juillet 2016 14:19:25 > Objet: Re: [cmake-developers] PATHS guess in find_package ignored with > NO_DEFAULT_PATH & CMAKE_FIND_ROOT_PATH_MODE_PACKAGE > On 07/01/2016 02:08 PM, Julien Schueller wrote: >>> De: "Nils Gladitz" <nilsglad...@gmail.com> >>> À: "Julien Schueller" <schuel...@phimeca.com> , "cmake-developers" >>> <cmake-developers@cmake.org> >>> Envoyé: Vendredi 1 Juillet 2016 13:57:40 >>> Objet: Re: [cmake-developers] PATHS guess in find_package ignored with >>> NO_DEFAULT_PATH & CMAKE_FIND_ROOT_PATH_MODE_PACKAGE >>> On 07/01/2016 01:44 PM, Julien Schueller wrote: >>>>> De: "Nils Gladitz" <nilsglad...@gmail.com> >>>>> À: "Julien Schueller" <schuel...@phimeca.com> , "cmake-developers" >>>>> <cmake-developers@cmake.org> >>>>> Envoyé: Vendredi 1 Juillet 2016 12:37:47 >>>>> Objet: Re: [cmake-developers] PATHS guess in find_package ignored with >>>>> NO_DEFAULT_PATH & CMAKE_FIND_ROOT_PATH_MODE_PACKAGE >>>>> On 07/01/2016 11:13 AM, Julien Schueller wrote: >>>>>> I'm using find_package in no-module mode with the PATHS option to >>>>>> provide a >>>>>> hard-coded guess to a path where a sublibrary 'hmat' was previously >>>>>> found, >>>>>> and with the NO_DEFAULT_PATH to not find it first in system directories. >>>>>> find_package (HMAT REQUIRED NO_MODULE PATHS /lib/cmake/hmat >>>>>> NO_DEFAULT_PATH) >>>>>> So far so good. Now I want to cross-compile with the usual toolchain >>>>>> file: >>>>>> set (CMAKE_FIND_ROOT_PATH /usr/i686-w64-mingw32) >>>>>> set (CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER) >>>>>> set (CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY) >>>>>> set (CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY) >>>>>> ... >>>>>> This works wonderfully too. >>>>>> But now I add CMAKE_FIND_ROOT_PATH_MODE_PACKAGE to ONLY in my toolchain >>>>>> file to >>>>>> prevent detecting native libraries >>>>>> set (CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY) >>>>>> And now find_package fails to find my package! >>>>>> I'm puzzled as I did not find in the doc something that explains why the >>>>>> PATHS >>>>>> is ignored (step #8 in find_package): >>>>>> https://cmake.org/cmake/help/v3.5/command/find_package.html#command:find_package >>>>> The given path "/lib/cmake/hmat" is prefixed by the paths in >>>>> CMAKE_FIND_ROOT_PATH. >>>>> Which means that (given ONLY) cmake only looks for the package in >>>>> "/usr/i686-w64-mingw32//lib/cmake/hmat". >>>>> You might want to e.g. add to CMAKE_FIND_ROOT_PATH and use >>>>> PATHS / >>>>> instead. >>>>> Nils >>>> Thanks, >>>> In my case has the same value as CMAKE_FIND_ROOT_PATH, and >>>> even if >>>> I modify the PATHS option value to be relative (PATHS lib/cmake/hmat) the >>>> detection fails. >>>> (They're not actually set to /usr/i686-w64-mingw32 but some absolute >>>> location in >>>> my home where I unzip a mingw toolchain, but I can reproduce the issue on >>>> another box where the toolchain is natively /usr/i686-w64-mingw32). >>> I don't think behavior for relative paths is defined. >>> Use absolute paths like "/lib/cmake/hmat", just "/" probably works as well >>> (since the path in the prefix matches >>> "/(lib/|lib|share)/cmake/*/"). >>> Nils >> Yes, if I use just "/lib/cmake/hmat" it works. Couldn't cmake see that that >> my >> absolute path begins with CMAKE_FIND_ROOT_PATH and hence should be treated as >> valid according to CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ? > CMake could do a lot of things but as-is the defined (documented) behavior is > that when you tell cmake to only look in the prefixes provided by > CMAKE_FIND_ROOT_PATH then all search locations are re-rooted to those > prefixes. > e.g. a given path "/usr" can exist under your regular filesystem root and as > /usr/i686-w64-mingw32/usr. > Still you would not want cmake to look in your native /usr directory in this > case even though it is "valid" (exists). > Nils I see your point. Thank you so much for the quick response. -- Julien Schueller Phimeca Engineering www.phimeca.com -- 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-developers
Re: [cmake-developers] PATHS guess in find_package ignored with NO_DEFAULT_PATH & CMAKE_FIND_ROOT_PATH_MODE_PACKAGE
On 07/01/2016 02:08 PM, Julien Schueller wrote:
*De: *"Nils Gladitz" <nilsglad...@gmail.com>
*À: *"Julien Schueller" <schuel...@phimeca.com>,
"cmake-developers" <cmake-developers@cmake.org>
*Envoyé: *Vendredi 1 Juillet 2016 13:57:40
*Objet: *Re: [cmake-developers] PATHS guess in find_package
ignored with NO_DEFAULT_PATH & CMAKE_FIND_ROOT_PATH_MODE_PACKAGE
On 07/01/2016 01:44 PM, Julien Schueller wrote:
*De: *"Nils Gladitz" <nilsglad...@gmail.com>
*À: *"Julien Schueller" <schuel...@phimeca.com>,
"cmake-developers" <cmake-developers@cmake.org>
*Envoyé: *Vendredi 1 Juillet 2016 12:37:47
*Objet: *Re: [cmake-developers] PATHS guess in
find_package ignored with NO_DEFAULT_PATH &
CMAKE_FIND_ROOT_PATH_MODE_PACKAGE
On 07/01/2016 11:13 AM, Julien Schueller wrote:
I'm using find_package in no-module mode with the
PATHS option to provide a hard-coded guess to a path
where a sublibrary 'hmat' was previously found,
and with the NO_DEFAULT_PATH to not find it first in
system directories.
find_package (HMAT REQUIRED NO_MODULE PATHS
/lib/cmake/hmat NO_DEFAULT_PATH)
So far so good. Now I want to cross-compile with the
usual toolchain file:
set (CMAKE_FIND_ROOT_PATH /usr/i686-w64-mingw32)
set (CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
set (CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
set (CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
...
This works wonderfully too.
But now I add CMAKE_FIND_ROOT_PATH_MODE_PACKAGE to
ONLY in my toolchain file to prevent detecting native
libraries
set (CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)
And now find_package fails to find my package!
I'm puzzled as I did not find in the doc something
that explains why the PATHS is ignored (step #8 in
find_package):
https://cmake.org/cmake/help/v3.5/command/find_package.html#command:find_package
The given path "/lib/cmake/hmat" is prefixed
by the paths in CMAKE_FIND_ROOT_PATH.
Which means that (given ONLY) cmake only looks for the
package in
"/usr/i686-w64-mingw32//lib/cmake/hmat".
You might want to e.g. add to
CMAKE_FIND_ROOT_PATH and use PATHS / instead.
Nils
Thanks,
In my case has the same value as
CMAKE_FIND_ROOT_PATH, and even if I modify the PATHS option
value to be relative (PATHS lib/cmake/hmat) the detection fails.
(They're not actually set to /usr/i686-w64-mingw32 but some
absolute location in my home where I unzip a mingw toolchain,
but I can reproduce the issue on another box where the
toolchain is natively /usr/i686-w64-mingw32).
I don't think behavior for relative paths is defined.
Use absolute paths like "/lib/cmake/hmat", just "/" probably works
as well (since the path in the prefix matches
"/(lib/|lib|share)/cmake/*/").
Nils
Yes, if I use just "/lib/cmake/hmat" it works. Couldn't cmake see that
that my absolute path begins with CMAKE_FIND_ROOT_PATH and hence
should be treated as valid according
to CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ?
CMake could do a lot of things but as-is the defined (documented)
behavior is that when you tell cmake to only look in the prefixes
provided by CMAKE_FIND_ROOT_PATH then all search locations are re-rooted
to those prefixes.
e.g. a given path "/usr" can exist under your regular filesystem root
and as /usr/i686-w64-mingw32/usr.
Still you would not want cmake to look in your native /usr directory in
this case even though it is "valid" (exists).
Nils
--
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Re: [cmake-developers] PATHS guess in find_package ignored with NO_DEFAULT_PATH & CMAKE_FIND_ROOT_PATH_MODE_PACKAGE
> De: "Nils Gladitz" <nilsglad...@gmail.com> > À: "Julien Schueller" <schuel...@phimeca.com>, "cmake-developers" > <cmake-developers@cmake.org> > Envoyé: Vendredi 1 Juillet 2016 13:57:40 > Objet: Re: [cmake-developers] PATHS guess in find_package ignored with > NO_DEFAULT_PATH & CMAKE_FIND_ROOT_PATH_MODE_PACKAGE > On 07/01/2016 01:44 PM, Julien Schueller wrote: >>> De: "Nils Gladitz" <nilsglad...@gmail.com> >>> À: "Julien Schueller" <schuel...@phimeca.com> , "cmake-developers" >>> <cmake-developers@cmake.org> >>> Envoyé: Vendredi 1 Juillet 2016 12:37:47 >>> Objet: Re: [cmake-developers] PATHS guess in find_package ignored with >>> NO_DEFAULT_PATH & CMAKE_FIND_ROOT_PATH_MODE_PACKAGE >>> On 07/01/2016 11:13 AM, Julien Schueller wrote: >>>> I'm using find_package in no-module mode with the PATHS option to provide a >>>> hard-coded guess to a path where a sublibrary 'hmat' was previously found, >>>> and with the NO_DEFAULT_PATH to not find it first in system directories. >>>> find_package (HMAT REQUIRED NO_MODULE PATHS /lib/cmake/hmat >>>> NO_DEFAULT_PATH) >>>> So far so good. Now I want to cross-compile with the usual toolchain file: >>>> set (CMAKE_FIND_ROOT_PATH /usr/i686-w64-mingw32) >>>> set (CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER) >>>> set (CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY) >>>> set (CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY) >>>> ... >>>> This works wonderfully too. >>>> But now I add CMAKE_FIND_ROOT_PATH_MODE_PACKAGE to ONLY in my toolchain >>>> file to >>>> prevent detecting native libraries >>>> set (CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY) >>>> And now find_package fails to find my package! >>>> I'm puzzled as I did not find in the doc something that explains why the >>>> PATHS >>>> is ignored (step #8 in find_package): >>>> https://cmake.org/cmake/help/v3.5/command/find_package.html#command:find_package >>> The given path "/lib/cmake/hmat" is prefixed by the paths in >>> CMAKE_FIND_ROOT_PATH. >>> Which means that (given ONLY) cmake only looks for the package in >>> "/usr/i686-w64-mingw32//lib/cmake/hmat". >>> You might want to e.g. add to CMAKE_FIND_ROOT_PATH and use >>> PATHS / >>> instead. >>> Nils >> Thanks, >> In my case has the same value as CMAKE_FIND_ROOT_PATH, and >> even if >> I modify the PATHS option value to be relative (PATHS lib/cmake/hmat) the >> detection fails. >> (They're not actually set to /usr/i686-w64-mingw32 but some absolute >> location in >> my home where I unzip a mingw toolchain, but I can reproduce the issue on >> another box where the toolchain is natively /usr/i686-w64-mingw32). > I don't think behavior for relative paths is defined. > Use absolute paths like "/lib/cmake/hmat", just "/" probably works as well > (since the path in the prefix matches > "/(lib/|lib|share)/cmake/*/"). > Nils Yes, if I use just "/lib/cmake/hmat" it works. Couldn't cmake see that that my absolute path begins with CMAKE_FIND_ROOT_PATH and hence should be treated as valid according to CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ? -- Julien Schueller Phimeca Engineering www.phimeca.com -- 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-developers
Re: [cmake-developers] PATHS guess in find_package ignored with NO_DEFAULT_PATH & CMAKE_FIND_ROOT_PATH_MODE_PACKAGE
> De: "Nils Gladitz" <nilsglad...@gmail.com> > À: "Julien Schueller" <schuel...@phimeca.com>, "cmake-developers" > <cmake-developers@cmake.org> > Envoyé: Vendredi 1 Juillet 2016 12:37:47 > Objet: Re: [cmake-developers] PATHS guess in find_package ignored with > NO_DEFAULT_PATH & CMAKE_FIND_ROOT_PATH_MODE_PACKAGE > On 07/01/2016 11:13 AM, Julien Schueller wrote: >> I'm using find_package in no-module mode with the PATHS option to provide a >> hard-coded guess to a path where a sublibrary 'hmat' was previously found, >> and with the NO_DEFAULT_PATH to not find it first in system directories. >> find_package (HMAT REQUIRED NO_MODULE PATHS /lib/cmake/hmat >> NO_DEFAULT_PATH) >> So far so good. Now I want to cross-compile with the usual toolchain file: >> set (CMAKE_FIND_ROOT_PATH /usr/i686-w64-mingw32) >> set (CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER) >> set (CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY) >> set (CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY) >> ... >> This works wonderfully too. >> But now I add CMAKE_FIND_ROOT_PATH_MODE_PACKAGE to ONLY in my toolchain file >> to >> prevent detecting native libraries >> set (CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY) >> And now find_package fails to find my package! >> I'm puzzled as I did not find in the doc something that explains why the >> PATHS >> is ignored (step #8 in find_package): >> https://cmake.org/cmake/help/v3.5/command/find_package.html#command:find_package > The given path "/lib/cmake/hmat" is prefixed by the paths in > CMAKE_FIND_ROOT_PATH. > Which means that (given ONLY) cmake only looks for the package in > "/usr/i686-w64-mingw32//lib/cmake/hmat". > You might want to e.g. add to CMAKE_FIND_ROOT_PATH and use > PATHS / > instead. > Nils Thanks, In my case has the same value as CMAKE_FIND_ROOT_PATH, and even if I modify the PATHS option value to be relative (PATHS lib/cmake/hmat) the detection fails. (They're not actually set to /usr/i686-w64-mingw32 but some absolute location in my home where I unzip a mingw toolchain, but I can reproduce the issue on another box where the toolchain is natively /usr/i686-w64-mingw32). -- Julien Schueller Phimeca Engineering www.phimeca.com -- 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-developers
Re: [cmake-developers] PATHS guess in find_package ignored with NO_DEFAULT_PATH & CMAKE_FIND_ROOT_PATH_MODE_PACKAGE
On 07/01/2016 11:13 AM, Julien Schueller wrote: I'm using find_package in no-module mode with the PATHS option to provide a hard-coded guess to a path where a sublibrary 'hmat' was previously found, and with the NO_DEFAULT_PATH to not find it first in system directories. find_package (HMAT REQUIRED NO_MODULE PATHS /lib/cmake/hmat NO_DEFAULT_PATH) So far so good. Now I want to cross-compile with the usual toolchain file: set (CMAKE_FIND_ROOT_PATH /usr/i686-w64-mingw32) set (CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER) set (CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY) set (CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY) ... This works wonderfully too. But now I add CMAKE_FIND_ROOT_PATH_MODE_PACKAGE to ONLY in my toolchain file to prevent detecting native libraries set (CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY) And now find_package fails to find my package! I'm puzzled as I did not find in the doc something that explains why the PATHS is ignored (step #8 in find_package): https://cmake.org/cmake/help/v3.5/command/find_package.html#command:find_package The given path "/lib/cmake/hmat" is prefixed by the paths in CMAKE_FIND_ROOT_PATH. Which means that (given ONLY) cmake only looks for the package in "/usr/i686-w64-mingw32//lib/cmake/hmat". You might want to e.g. add to CMAKE_FIND_ROOT_PATH and use PATHS / instead. Nils -- 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-developers
