[cmake-developers] Using pkgconf

[APEKE, SENA (ext)]

Hello,
We are  beginners of cmake and currently we use it for porting mariadb. When we start manufacturing, we get a hang in the file CMakeDetermineCCompiler.cmake :

................................................
................................................
opt/freeware/share/cmake/Modules/CMakeDetermineCCompiler.cmake(38):  if(NOT CMAKE_C_COMPILER_NAMES )
/opt/freeware/share/cmake/Modules/CMakeDetermineCCompiler.cmake(39):  set(CMAKE_C_COMPILER_NAMES cc )
/opt/freeware/share/cmake/Modules/CMakeDetermineCCompiler.cmake(42):  if(${CMAKE_GENERATOR} MATCHES Visual Studio )
/opt/freeware/share/cmake/Modules/CMakeDetermineCCompiler.cmake(43):  elseif(${CMAKE_GENERATOR} MATCHES Xcode )
/opt/freeware/share/cmake/Modules/CMakeDetermineCCompiler.cmake(46):  else()
/opt/freeware/share/cmake/Modules/CMakeDetermineCCompiler.cmake(47):  if(NOT CMAKE_C_COMPILER )
/opt/freeware/share/cmake/Modules/CMakeDetermineCCompiler.cmake(48):  set(CMAKE_C_COMPILER_INIT NOTFOUND )
/opt/freeware/share/cmake/Modules/CMakeDetermineCCompiler.cmake(51):  if(NOT $ENV{CC} STREQUAL  )
/opt/freeware/share/cmake/Modules/CMakeDetermineCCompiler.cmake(52):  get_filename_component(CMAKE_C_COMPILER_INIT $ENV{CC} PROGRAM PROGRAM_ARGS CMAKE_C_FLAGS_ENV_INIT )

Someone understand this problem? we need help please, 

Thanks in advance !

Sena

-----Original Message-----
From: cmake-developers [mailto:cmake-developers-bounces at cmake.org] On Behalf Of Brad King
Sent: Thursday, June 14, 2018 8:54 PM
To: Paul Fultz II
Cc: cmake-developers at cmake.org
Subject: Re: [cmake-developers] Using pkgconf

On 06/14/2018 01:20 PM, Paul Fultz II wrote:
>> meta-packages that cover multiple components?
> 
> You can just create a .pc file that adds each component in the requires. 

That assumes that all components are wanted and are meant to be all used together at once for linking.  CMake's find_package command is meant to find what's available.  Project code then links to some subset of the actual targets available.  Maybe we'd need a variable-only .pc file with a specific naming convention for that.

> find_package(zlib CONF VERSION > 1.0)

find_package already has a "CONFIG" mode.  The semantics of pkgconf are different enough I don't think we should overload the command.  I'd rather have a separate find_pkgconf command.
Or maybe another name will be appropriate depending on the semantics designed.

-Brad
-- 

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