cmake-d and gdc/gdmd compiler

[timvol via Digitalmars-d-learn]

Hi guys,

I'm trying to cross-compile a project using CMake and gdc (or 
better: the gdmd port). My CMakeLists-file is the following:

cmake_minimum_required(VERSION 2.8.1)

set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} 
"${CMAKE_SOURCE_DIR}/cmake-d")
SET(CMAKE_SYSTEM_NAME Linux)

project(myapp D)
set(CMAKE_D_FLAGS "${CMAKE_D_FLAGS} ${GLOBAL_DMD_DEFS}")

set(SOURCES
     main.d
     generic.d
     )

include_directories(.)

add_executable(myapp ${SOURCES})

I'm working on Windows and I want compile the project for the 
target linux system. So, I downloaded the gdc (x86_64-linux-gnu), 
extracted it and set the PATH variable. Unfortunately, when I 
configure my project using CMake, I'm getting the following 
message:

CMake Error at 
C:/Users/User/Desktop/Project/cmake-d/CMakeDetermineDCompiler.cmake:32 (MESSAGE):
   Could not find compiler set in environment variable C:

   CMAKE_D_COMPILER-NOTFOUND.
Call Stack (most recent call first):
   CMakeLists.txt:6 (project)


CMake Error: CMAKE_D_COMPILER not set, after EnableLanguage

I think CMake cannot find the compiler because the executables of 
gdc are named like "x86_64-unknown-linux-gnu-gdc". So, I've added 
the following to my CMakeLists-file:

set(CMAKE_D_COMPILER x86_64-unknown-linux-gnu-gdmd)

But this also fails with the following error:

The D compiler identification is GNU
Check for working D compiler: 
C:/Users/User/Compiler/x86_64-unknown-linux-gnu/bin/x86_64-unknown-linux-gnu-gdmd.exe
Check for working D compiler: 
C:/Users/User/Compiler/x86_64-unknown-linux-gnu/bin/x86_64-unknown-linux-gnu-gdmd.exe -- broken
To force a specific D compiler set the DC environment variable
     ie - export DC="/usr/bin/dmd"
CMake Error at 
C:/Users/User/Desktop/cmake-d/CMakeTestDCompiler.cmake:45 
(message):
   The D compiler
   
"C:/Users/User/Compiler/x86_64-unknown-linux-gnu/bin/x86_64-unknown-linux-gnu-gdmd.exe"
   is not able to compile a simple test program.

   It fails with the following output:

    Change Dir: 
C:/Users/User/Desktop/Project.linux/CMakeFiles/CMakeTmp



   Run Build Command:"C:/Users/User/Compiler/ninja.exe"
   "cmTC_365e1"

   [1/2] Building D object CMakeFiles\cmTC_365e1.dir\testDCompiler


   FAILED: CMakeFiles/cmTC_365e1.dir/testDCompiler



   
C:\Users\User\Entwicklung\Compiler\x86_64-unknown-linux-gnu\bin\x86_64-unknown-linux-gnu-gdmd.exe
   CMakeFiles\cmTC_365e1.dir\testDCompiler -c
   
C:\Users\User\Desktop\Project.linux\CMakeFiles\3.7.2\CMakeTmp\testDCompiler.d



   x86_64-unknown-linux-gnu-gdc.exe: error:
   CMakeFiles\cmTC_365e1.dir\testDCompiler.d: No such file or 
directory




   x86_64-unknown-linux-gnu-gdc.exe: fatal error: no input files




   compilation terminated.




   Compile of ["CMakeFiles\\cmTC_365e1.dir\\testDCompiler.d"] 
failed



   ninja: build stopped: subcommand failed.






   CMake will not be able to correctly generate this project.
Call Stack (most recent call first):
   CMakeLists.txt:7 (project)


Configuring incomplete, errors occurred!
See also 
"C:/Users/User/Desktop/Project.linux/CMakeFiles/CMakeOutput.log".

Does anyone know what can cause the problem here? I've also set 
the DC environment variable but I'm still getting the errors :(