[package] zlib/1.2.11 : compiler mismatch

[AndreyMlashkin]

If I try to compiler with clang not in docker, but on my host system, despite I have overridden CC and CXX variables, still an MSVC toolset is used

Package and Environment Details (include every applicable attribute)

• Package Name/Version: zlib/1.2.11
• Operating System+version: windows 10
• Compiler+version: clang 12
• Conan version: conan 1.38.0
• Python version: Python 3.8.5

Conan profile (output of conan profile show default or conan profile show <profile> if custom profile is in use)

[settings]
arch=x86_64
arch_build=x86_64
build_type=Debug
compiler=clang
compiler.version=12.0
os=Windows
os_build=Windows
[options]
[build_requires]
[env]
CC=clang-cl
CONAN_CMAKE_GENERATOR=Ninja
CXX=clang-cl

Steps to reproduce (Include if Applicable)

conan install zlib/1.2.11@ --build * -pr clang

Logs (Include/Attach if Applicable)

Click to expand log

conan install zlib/1.2.11@ --build *  -pr clang
Configuration:
[settings]
arch=x86_64
arch_build=x86_64
build_type=Debug
compiler=clang
compiler.version=12
os=Windows
os_build=Windows
[options]
[build_requires]
[env]
CC=C:\Program Files\LLVM\bin\clang-cl.exe
CONAN_CMAKE_GENERATOR=Ninja
CXX=C:\Program Files\LLVM\bin\clang-cl.exe
zlib/1.2.11: Forced build from source
Installing package: zlib/1.2.11
Requirements
    zlib/1.2.11 from 'artifactory' - Cache
Packages
    zlib/1.2.11:bd500648356902bb5cb5a6961daa81fc25f3f22c - Build

Installing (downloading, building) binaries...
zlib/1.2.11: WARN: Build folder is dirty, removing it: E:\conan_new\zlib\1.2.11\_\_\build\bd500648356902bb5cb5a6961daa81fc25f3f22c
zlib/1.2.11: Copying sources to build folder
zlib/1.2.11: Building your package in E:\conan_new\zlib\1.2.11\_\_\build\bd500648356902bb5cb5a6961daa81fc25f3f22c
zlib/1.2.11: Generator cmake created conanbuildinfo.cmake
zlib/1.2.11: Calling build()
zlib/1.2.11: Found Visual Studio 16
**********************************************************************
** Visual Studio 2019 Developer Command Prompt v16.10.3
** Copyright (c) 2021 Microsoft Corporation
**********************************************************************
[vcvarsall.bat] Environment initialized for: 'x64'
-- The C compiler identification is Clang 12.0.0 with MSVC-like command-line
-- The CXX compiler identification is Clang 12.0.0 with MSVC-like command-line
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: C:/Program Files/LLVM/bin/clang-cl.exe - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: C:/Program Files/LLVM/bin/clang-cl.exe - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Conan CMake Wrapper
-- Conan: called by CMake conan helper
-- Conan: called inside local cache
-- Conan: Adjusting output directories
-- Conan: Using cmake global configuration
-- Conan: Adjusting default RPATHs Conan policies
-- Conan: Adjusting language standard
-- Conan: Compiler Clang>=8, checking major version 12
-- Conan: Checking correct version: 12
-- Looking for sys/types.h
-- Looking for sys/types.h - found
-- Looking for stdint.h
-- Looking for stdint.h - found
-- Looking for stddef.h
-- Looking for stddef.h - found
-- Check size of off64_t
-- Check size of off64_t - failed
-- Looking for fseeko
-- Looking for fseeko - not found
-- Looking for unistd.h
-- Looking for unistd.h - not found
-- Renaming
--     E:/conan_new/zlib/1.2.11/_/_/build/bd500648356902bb5cb5a6961daa81fc25f3f22c/source_subfolder/zconf.h
-- to 'zconf.h.included' because this file is included with zlib
-- but CMake generates it automatically in the build directory.
-- Configuring done
-- Generating done
CMake Warning:
  Manually-specified variables were not used by the project:

    CMAKE_EXPORT_NO_PACKAGE_REGISTRY
    CMAKE_INSTALL_BINDIR
    CMAKE_INSTALL_DATAROOTDIR
    CMAKE_INSTALL_INCLUDEDIR
    CMAKE_INSTALL_LIBDIR
    CMAKE_INSTALL_LIBEXECDIR
    CMAKE_INSTALL_OLDINCLUDEDIR
    CMAKE_INSTALL_SBINDIR


-- Build files have been written to: E:/conan_new/zlib/1.2.11/_/_/build/bd500648356902bb5cb5a6961daa81fc25f3f22c/build_subfolder
zlib/1.2.11: Found Visual Studio 16
**********************************************************************
** Visual Studio 2019 Developer Command Prompt v16.10.3
** Copyright (c) 2021 Microsoft Corporation
**********************************************************************
[vcvarsall.bat] Environment initialized for: 'x64'
[16/16] Linking C static library lib\zlibstaticd.lib
zlib/1.2.11: Package 'bd500648356902bb5cb5a6961daa81fc25f3f22c' built
zlib/1.2.11: Build folder E:\conan_new\zlib\1.2.11\_\_\build\bd500648356902bb5cb5a6961daa81fc25f3f22c
zlib/1.2.11: Generated conaninfo.txt
zlib/1.2.11: Generated conanbuildinfo.txt
zlib/1.2.11: Generating the package
zlib/1.2.11: Package folder E:\conan_new\zlib\1.2.11\_\_\package\bd500648356902bb5cb5a6961daa81fc25f3f22c
zlib/1.2.11: Calling package()
ERROR: zlib/1.2.11: Error in package() method, line 124
        self._rename_libraries()
while calling '_rename_libraries', line 97
        tools.rename(current_lib, os.path.join(lib_path, "zlib.lib"))
        ConanException: rename E:\conan_new\zlib\1.2.11\_\_\package\bd500648356902bb5cb5a6961daa81fc25f3f22c\lib\zlibstatic.lib to E:\conan_new\zlib\1.2.11\_\_\package\bd500648356902bb5cb5a6961daa81fc25f3f22c\lib\zlib.lib failed: [WinError 2] The system cannot find the file specified: 'E:\\conan_new\\zlib\\1.2.11\\_\\_\\package\\bd500648356902bb5cb5a6961daa81fc25f3f22c\\lib\\zlibstatic.lib' -> 'E:\\conan_new\\zlib\\1.2.11\\_\\_\\package\\bd500648356902bb5cb5a6961daa81fc25f3f22c\\lib\\zlib.lib'

[ruilvo]

Duplicate #6414.