cmake的源外错误是什么

Question

我正试图用cmake编译一些东西，但它给出了一个关于需要脱离源代码的错误。我怎样才能找到更多关于这个错误的信息？这是输出

C:UserssansariDownloadstpm_emulator-0.7.4tpm_emulator-0.7.4build>cmake ../
CMake Error at CMakeLists.txt:17 (message):
  TPM_Emulator requires an out of source build.

-- Configuring incomplete, errors occurred!
See also "C:/Users/sansari/Downloads/tpm_emulator-0.7.4/tpm_emulator-0.7.4/CMakeFiles/CMakeOutput.log".

以下是CMakeLists.txt 的内容

# Software-based Trusted Platform Module (TPM) Emulator
# Copyright (C) 2004-2010 Mario Strasser <[e-mail]>
#
# $Id: CMakeLists.txt 475 2011-12-20 18:21:19Z mast $
project(TPM_Emulator C)
cmake_minimum_required(VERSION 2.4)
set(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS true)
if(COMMAND cmake_policy)
cmake_policy(SET CMP0003 NEW)
endif()
# enforce out of source build
string(COMPARE EQUAL "${CMAKE_SOURCE_DIR}" "${CMAKE_BINARY_DIR}" IS_INSOURCE)
if(IS_INSOURCE)
    message(FATAL_ERROR "${PROJECT_NAME} requires an out of source build.")
endif()
# set project and build version
set(${PROJECT_NAME}_VERSION_MAJOR 0)
set(${PROJECT_NAME}_VERSION_MINOR 7)
string(REGEX REPLACE ".*Revision: ([0-9]+).*" "\1" ${PROJECT_NAME}_VERSION_BUILD "$Revision: 475 $")
# create project configuration
if(WIN32)
STRING(REGEX REPLACE "\\" "/" PROGRAMFILES "$ENV{PROGRAMFILES}/${PROJECT_NAME}")
set(TPM_LOG_FILE "${PROGRAMFILES}/tpmd.log")
set(TPM_STORAGE_NAME "${PROGRAMFILES}/tpm_emulator-1_2_${${PROJECT_NAME}_VERSION_MAJOR}_${${PROJECT_NAME}_VERSION_MINOR}
")
set(TPM_DEVICE_NAME "//./pipe/tpmd:0")
elseif(APPLE)
set(TPM_LOG_FILE "/private/var/log/tpmd.log")
set(TPM_SOCKET_NAME "/private/var/run/tpm/tpmd_socket:0")
set(TPM_STORAGE_NAME "/private/var/lib/tpm/tpm_emulator-1_2_${${PROJECT_NAME}_VERSION_MAJOR}_${${PROJECT_NAME}_VERSION_MINOR}")
set(TPM_DEVICE_NAME "/dev/tpm")
else()
set(TPM_LOG_FILE "/var/log/tpmd.log")
set(TPM_SOCKET_NAME "/var/run/tpm/tpmd_socket:0")
set(TPM_STORAGE_NAME "/var/lib/tpm/tpm_emulator-1_2_${${PROJECT_NAME}_VERSION_MAJOR}_${${PROJECT_NAME}_VERSION_MINOR}")
set(TPM_DEVICE_NAME "/dev/tpm")
endif()
configure_file(${CMAKE_CURRENT_SOURCE_DIR}/config.h.in ${CMAKE_CURRENT_BINARY_DIR}/config.h)
add_definitions(-Wall -Werror -Wno-unused-parameter -Wpointer-arith -Wcast-align -Wwrite-strings)
if("${CMAKE_SYSTEM}" MATCHES "Linux")
    add_definitions(-Wextra)
endif()
if(USE_OPENSSL)
    add_definitions(-DUSE_OPENSSL)
endif()
include_directories("/opt/local/include")
link_directories("/opt/local/lib")
# configure CPack
set(CPACK_PACKAGE_VERSION_MAJOR ${${PROJECT_NAME}_VERSION_MAJOR})
set(CPACK_PACKAGE_VERSION_MINOR ${${PROJECT_NAME}_VERSION_MINOR})
set(CPACK_SOURCE_PACKAGE_FILE_NAME "tpm_emulator-${CPACK_PACKAGE_VERSION_MAJOR}.${CPACK_PACKAGE_VERSION_MINOR}.4")
set(CPACK_SOURCE_GENERATOR "TGZ")
set(CPACK_SOURCE_IGNORE_FILES ".svn/" "/build/" "/.project" "/.cproject")
set(CPACK_GENERATOR "ZIP")
set(CPACK_SET_DESTDIR ON)
include(CPack)
# include root directories
include_directories(${CMAKE_SOURCE_DIR})
include_directories(${CMAKE_BINARY_DIR})
# add internal libraries
add_subdirectory(tpm)
add_subdirectory(mtm)
add_subdirectory(crypto)
# add TDDL
add_subdirectory(tddl)
# add kernel modules
add_subdirectory(tpmd_dev)
# add executables
add_subdirectory(tpmd)

@丹·谢普勒-谢谢。我删除了源代码，然后再次将其解包。现在我得到一个不同的消息如下：

$ cmake ../
-- The C compiler identification is unknown
CMake Error at CMakeLists.txt:6 (project):
  The CMAKE_C_COMPILER:
    cl
  is not a full path and was not found in the PATH.
  To use the NMake generator with Visual C++, cmake must be run from a shell
  that can use the compiler cl from the command line.  This environment is
  unable to invoke the cl compiler.  To fix this problem, run cmake from the
  Visual Studio Command Prompt (vcvarsall.bat).
  Tell CMake where to find the compiler by setting either the environment
  variable "CC" or the CMake cache entry CMAKE_C_COMPILER to the full path to
  the compiler, or to the compiler name if it is in the PATH.

-- Configuring incomplete, errors occurred!
See also "C:/Users/sansari/Downloads/tpm_emulator-0.7.4/tpm_emulator-0.7.4/build/CMakeFiles/CMakeOutput.log".
See also "C:/Users/sansari/Downloads/tpm_emulator-0.7.4/tpm_emulator-0.7.4/build/CMakeFiles/CMakeError.log".
Given that I have installed MinGw. I believe I have to set my compiler as gcc. And I believe this would be my path
C:MinGWbin

我只是执行了这两个命令，将环境变量设置为我所知道的编译器的路径，但我仍然会收到错误。我在C:\MinGw\bin中看到了gcc.exe。我将尝试将gcc.exe的名称添加到环境变量路径中。

set CC=C:MinGWbin

set CMAKE_C_COMPILER=C:MinGWbin

---

我在构建目录中找到了需要更改的变量并对其进行了更改。现在它显示

$ cmake ../
-- The C compiler identification is GNU 4.9.3
-- Check for working C compiler: C:/MinGW/bin/gcc.exe
CMake Error: Generator: execution of make failed. Make command was: "nmake" "/NOLOGO" "cmTC_5e307fast"
-- Check for working C compiler: C:/MinGW/bin/gcc.exe -- broken
CMake Error at C:/Program Files (x86)/CMake/share/cmake-3.5/Modules/CMakeTestCCompiler.cmake:61 (message):
  The C compiler "C:/MinGW/bin/gcc.exe" is not able to compile a simple test
  program.
  It fails with the following output:
   Change Dir: C:/Users/sansari/Downloads/tpm_emulator-0.7.4/tpm_emulator-0.7.4/build/CMakeFiles/CMakeTmp

  Run Build Command:"nmake" "/NOLOGO" "cmTC_5e307fast"

  Generator: execution of make failed.  Make command was: "nmake" "/NOLOGO"
  "cmTC_5e307fast"


  CMake will not be able to correctly generate this project.
Call Stack (most recent call first):
  CMakeLists.txt:6 (project)

-- Configuring incomplete, errors occurred!
See also "C:/Users/sansari/Downloads/tpm_emulator-0.7.4/tpm_emulator-0.7.4/build/CMakeFiles/CMakeOutput.log".
See also "C:/Users/sansari/Downloads/tpm_emulator-0.7.4/tpm_emulator-0.7.4/build/CMakeFiles/CMakeError.log".

---

我找到了这个链接，并在Windows 10上检查了我的路径变量。实际上，我必须添加一个用户路径；我只是有系统路径。我把MInGw\bin、msys\bin和msys\local\bin以及cmake放在我的路径中。

我认为这次成功了。我使用的是在Admin模式下运行的cmd，而不是MinGw shell。这是输出。。。

C:UserssansariDownloadstpm_emulator-0.7.4tpm_emulator-0.7.4build>cmake ../
-- The C compiler identification is GNU 4.9.3
-- Check for working C compiler: C:/MinGW/bin/gcc.exe
-- Check for working C compiler: C:/MinGW/bin/gcc.exe -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Configuring done
-- Generating done
-- Build files have been written to: C:/Users/sansari/Downloads/tpm_emulator-0.7.4/tpm_emulator-0.7.4/build

Answer 1

消息通过以下行显式输出：

    message(FATAL_ERROR "${PROJECT_NAME} requires an out of source build.")

通常，我不希望根据您给出的cmake命令触发if条件。我会首先检查源目录C:UserssansariDownloadstpm_emulator-0.7.4tpm_emulator-0.7.4中是否有以前的配置尝试遗留的一些CMake工件，这可能会导致CMake拒绝使用您的构建目录。如果是，则从源目录中删除CMakeCache.txt、CMakeFiles/等（或者只删除整个源目录并重新解压缩）。否则，为了调试正在发生的事情，我会在if(IS_INSOURCE)语句上方临时插入这样的内容：

message(STATUS "CMAKE_SOURCE_DIR = ${CMAKE_SOURCE_DIR}")
message(STATUS "CMAKE_BINARY_DIR = ${CMAKE_BINARY_DIR}")
message(STATUS "IS_INSOURCE = ${IS_INSOURCE}")