[CMake] find_library not finding libraries - why?

[Cornelis Bockemühl]

Thanks - that was it! Now CMake is happy - just a question of
seconds...

Regarcs, Cornelis

Am Donnerstag, den 09.11.2017, 09:30 +0000 schrieb CHEVRIER, Marc:
> 
> 
> > The problem is on NAMES argument. You have to specify library names
without prefix. So
> Clp must be used rather than libClp.
> FIND_LIBRARY(CLP_LIBRARY       NAMES
> Clp       PATHS ${CLP_LIB} NO_DEFAULT_PATH)
> 
> 
> 
> 
>  
> 
> > > > From: CMake <cmake-bounces at cmake.org> on behalf of "cornelis at bockemue
hl.ch" <cornelis at bockemuehl.ch>
> 
> Date: Thursday 9 November 2017 at 00:09
> 
> > > To: "cmake at cmake.org" <cmake at cmake.org>
> 
> Subject: [CMake] find_library not finding libraries - why?
> 
> 
> 
>  
> 
> 
> In a CMakeLists.txt I have the following lines of code:
> 
> 
> 
> # with this the user will be asked for a path that has then
> 
> # lib64 other subdirectories that are specified below
> 
> FIND_PATH(CLP_DIR libClp)
> 
> 
> 
> SET(CLP_LIB ${CLP_DIR}/lib64)
> 
> 
> 
> # after the user specified CLP_DIR this shows what is expected:
> 
> # the full path to the libraries, but...
> 
> message(AUTHOR_WARNING ${CLP_LIB})
> 
> 
> 
> > # with the following I think I cannot indicate more clearly where the
libraries actually are:
> 
> > FIND_LIBRARY(CLP_LIBRARY       NAMES libClp       PATHS ${CLP_LIB}
NO_DEFAULT_PATH)
> 
> > FIND_LIBRARY(COINUTILS_LIBRARY NAMES libCoinUtils PATHS ${CLP_LIB}
NO_DEFAULT_PATH)
> 
> > FIND_LIBRARY(OSI_LIBRARY       NAMES libOsi       PATHS ${CLP_LIB}
NO_DEFAULT_PATH)
> 
> > FIND_LIBRARY(OSICLP_LIBRARY    NAMES libOsiClp    PATHS ${CLP_LIB}
NO_DEFAULT_PATH)
> 
> 
> 
> # ...here everything comes as -NOTFOUND
> 
> message(AUTHOR_WARNING ${CLP_LIBRARY})
> 
> message(AUTHOR_WARNING ${COINUTILS_LIBRARY})
> 
> message(AUTHOR_WARNING ${OSI_LIBRARY})
> 
> message(AUTHOR_WARNING ${OSICLP_LIBRARY})
> 
> 
> 
> A dir for the indicated directory shows the following files:
> 
> 
> 
> -rwxrwxrwx 1 cornelis users     907  8. Nov 18:37 libClp.la
> 
> > lrwxrwxrwx 1 cornelis users      42  8. Nov 18:37 libClp.so ->
libClp.so.1.13.11
> 
> > lrwxrwxrwx 1 cornelis users      42  8. Nov 18:37 libClp.so.1 ->
libClp.so.1.13.11
> 
> -rwxrwxrwx 1 cornelis users 1887336  8. Nov 18:37 libClp.so.1.13.11
> 
> -rwxrwxrwx 1 cornelis users    1010  8. Nov 18:37 libClpSolver.la
> 
> > lrwxrwxrwx 1 cornelis users      54  8. Nov 18:37 libClpSolver.so ->
libClpSolver.so.1.13.11
> 
> > lrwxrwxrwx 1 cornelis users      54  8. Nov 18:37 libClpSolver.so.1
-> libClpSolver.so.1.13.11
> 
> > -rwxrwxrwx 1 cornelis users  415224  8. Nov 18:37
libClpSolver.so.1.13.11
> 
> -rwxrwxrwx 1 cornelis users     870  8. Nov 18:37 libCoinUtils.la
> 
> > lrwxrwxrwx 1 cornelis users      54  8. Nov 18:37 libCoinUtils.so ->
libCoinUtils.so.3.10.14
> 
> > lrwxrwxrwx 1 cornelis users      54  8. Nov 18:37 libCoinUtils.so.3
-> libCoinUtils.so.3.10.14
> 
> > -rwxrwxrwx 1 cornelis users 1416632  8. Nov 18:37
libCoinUtils.so.3.10.14
> 
> -rwxrwxrwx 1 cornelis users    1059  8. Nov 18:37 libOsiClp.la
> 
> > lrwxrwxrwx 1 cornelis users      48  8. Nov 18:37 libOsiClp.so ->
libOsiClp.so.1.13.11
> 
> > lrwxrwxrwx 1 cornelis users      48  8. Nov 18:37 libOsiClp.so.1 ->
libOsiClp.so.1.13.11
> 
> > -rwxrwxrwx 1 cornelis users  350080  8. Nov 18:37
libOsiClp.so.1.13.11
> 
> > -rwxrwxrwx 1 cornelis users    1038  8. Nov 18:37
libOsiCommonTests.la
> 
> > lrwxrwxrwx 1 cornelis users      62  8. Nov 18:37
libOsiCommonTests.so -> libOsiCommonTests.so.1.12.9
> 
> > lrwxrwxrwx 1 cornelis users      62  8. Nov 18:37
libOsiCommonTests.so.1 -> libOsiCommonTests.so.1.12.9
> 
> > -rwxrwxrwx 1 cornelis users  619392  8. Nov 18:37
libOsiCommonTests.so.1.12.9
> 
> -rwxrwxrwx 1 cornelis users     905  8. Nov 18:37 libOsi.la
> 
> > lrwxrwxrwx 1 cornelis users      40  8. Nov 18:37 libOsi.so ->
libOsi.so.1.12.9
> 
> > lrwxrwxrwx 1 cornelis users      40  8. Nov 18:37 libOsi.so.1 ->
libOsi.so.1.12.9
> 
> -rwxrwxrwx 1 cornelis users  400776  8. Nov 18:37 libOsi.so.1.12.9
> 
> drwxrwxrwx 1 cornelis users    4096  8. Nov 18:37 pkgconfig
> 
> 
> 
> so the libraries are obviously there!
> 
> 
> 
> Questions:
> 
> What am I doing wrong?
> 
> What did I possibly misunderstand regarding the find_library command?
> 
> 
> 
> Thanks for any helpful hints!
> 
> Cornelis
> 
> 
> 
> 
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