Hi.

I am struggling with using cmake to build LDC.  I have successfully built LLVM and clang following standard instructions, but I am not so familiar with cmake and do not know which directory LLVM_ROOT_DIR should point to.

Ultimately I would like to build calypso, but I have the same problem with stock LDC.

Running arch linux on a 64 bit machine.  I have tried various iterations of pointing to build directory as well as llvm parent.

[laeeth@console build]$ cmake .. -DLLVM_ROOT_DIR='../../llvm' -DCMAKE_BUILD_TYPE=Release

[laeeth@console build]$ ls ../../llvm/
autoconf	 configure    LLVMBuild.txt	  README.txt
bin		 CREDITS.TXT  llvm.spec.in	  test
bindings	 docs	      Makefile		  tools
build		 examples     Makefile.common	  unittests
cmake		 include      Makefile.config.in  utils
CMakeLists.txt	 lib	      Makefile.rules
CODE_OWNERS.TXT  LICENSE.TXT  projects
[laeeth@console build]$


This is the error I receive:

[laeeth@console build]$ cmake .. -DLLVM_ROOT_DIR='../../llvm' -DCMAKE_BUILD_TYPE=Release
CMake Error at cmake/Modules/FindLLVM.cmake:140 (string):
  string sub-command REGEX, mode MATCHALL needs at least 5 arguments total to
  command.
Call Stack (most recent call first):
  cmake/Modules/FindLLVM.cmake:174 (llvm_set_libs)
  CMakeLists.txt:18 (find_package)


CMake Error at /usr/share/cmake-3.1/Modules/FindPackageHandleStandardArgs.cmake:138 (message):
  Could NOT find LLVM: Found unsuitable version "", but required is at least
  "3.1" (found )
Call Stack (most recent call first):
  /usr/share/cmake-3.1/Modules/FindPackageHandleStandardArgs.cmake:372 (_FPHSA_FAILURE_MESSAGE)
  cmake/Modules/FindLLVM.cmake:196 (find_package_handle_standard_args)
  CMakeLists.txt:18 (find_package)


-- Configuring incomplete, errors occurred!
See also "/btrfs0/dlang/calypso/calypso/build/CMakeFiles/CMakeOutput.log".

"Laeeth Isharc" <nospamlaeeth@nospam.laeeth.com> writes:

> Hi.
>
> I am struggling with using cmake to build LDC.  I have successfully built LLVM and clang following standard instructions, but I am not so familiar with cmake and do not know which directory LLVM_ROOT_DIR should point to.

I think LLVM_ROOT_DIR has to be an absolute path.  When I use a prebuild llvm, it get it to work like this:

  cmake -DLLVM_ROOT_DIR=/opt/local/libexec/llvm-3.4/ ...

or when I use a llvm I built, say configured with --enable-optimized and --disable-assertions then I do something like (assume I built llvm in dir build-llvm):

  cmake -DLLVM_ROOT_DIR=/Users/dan/projects/build-llvm/Release/ ...

On Tuesday, 24 February 2015 at 16:33:31 UTC, Laeeth Isharc wrote:
> Hi.
>
> I am struggling with using cmake to build LDC.  I have successfully built LLVM and clang following standard instructions, but I am not so familiar with cmake and do not know which directory LLVM_ROOT_DIR should point to.
>
> Ultimately I would like to build calypso, but I have the same problem with stock LDC.
>
> Running arch linux on a 64 bit machine.  I have tried various iterations of pointing to build directory as well as llvm parent.
>
> [laeeth@console build]$ cmake .. -DLLVM_ROOT_DIR='../../llvm' -DCMAKE_BUILD_TYPE=Release
>
> [laeeth@console build]$ ls ../../llvm/
> autoconf	 configure    LLVMBuild.txt	  README.txt
> bin		 CREDITS.TXT  llvm.spec.in	  test
> bindings	 docs	      Makefile		  tools
> build		 examples     Makefile.common	  unittests
> cmake		 include      Makefile.config.in  utils
> CMakeLists.txt	 lib	      Makefile.rules
> CODE_OWNERS.TXT  LICENSE.TXT  projects
> [laeeth@console build]$
>
>
> This is the error I receive:
>
> [laeeth@console build]$ cmake .. -DLLVM_ROOT_DIR='../../llvm' -DCMAKE_BUILD_TYPE=Release
> CMake Error at cmake/Modules/FindLLVM.cmake:140 (string):
>   string sub-command REGEX, mode MATCHALL needs at least 5 arguments total to
>   command.
> Call Stack (most recent call first):
>   cmake/Modules/FindLLVM.cmake:174 (llvm_set_libs)
>   CMakeLists.txt:18 (find_package)
>
>
> CMake Error at /usr/share/cmake-3.1/Modules/FindPackageHandleStandardArgs.cmake:138 (message):
>   Could NOT find LLVM: Found unsuitable version "", but required is at least
>   "3.1" (found )
> Call Stack (most recent call first):
>   /usr/share/cmake-3.1/Modules/FindPackageHandleStandardArgs.cmake:372 (_FPHSA_FAILURE_MESSAGE)
>   cmake/Modules/FindLLVM.cmake:196 (find_package_handle_standard_args)
>   CMakeLists.txt:18 (find_package)
>
>
> -- Configuring incomplete, errors occurred!
> See also "/btrfs0/dlang/calypso/calypso/build/CMakeFiles/CMakeOutput.log".

you shouldn't have to specify LLVM_ROOT_DIR on a system like Arch, cmake should be perfectly capable of finding it on its own, assuming you have llvm installed somewhere sensible (i.e. where pacman puts it). All ldc's dependencies are available through pacman.

What does `which llvm-config` give you?

I just tested this with ldc on arch:

git clone https://github.com/ldc-developers/ldc
cd ldc
git submodule update --init
mkdir build
cd build
cmake ../
make -j8

everything worked fine.

On Tuesday, 24 February 2015 at 16:33:31 UTC, Laeeth Isharc wrote:
> Hi.
>
> I am struggling with using cmake to build LDC.  I have successfully built LLVM and clang following standard instructions, but I am not so familiar with cmake and do not know which directory LLVM_ROOT_DIR should point to.
>
> Ultimately I would like to build calypso, but I have the same problem with stock LDC.
>
> Running arch linux on a 64 bit machine.  I have tried various iterations of pointing to build directory as well as llvm parent.
>
> [laeeth@console build]$ cmake .. -DLLVM_ROOT_DIR='../../llvm' -DCMAKE_BUILD_TYPE=Release
>
> [laeeth@console build]$ ls ../../llvm/
> autoconf	 configure    LLVMBuild.txt	  README.txt
> bin		 CREDITS.TXT  llvm.spec.in	  test
> bindings	 docs	      Makefile		  tools
> build		 examples     Makefile.common	  unittests
> cmake		 include      Makefile.config.in  utils
> CMakeLists.txt	 lib	      Makefile.rules
> CODE_OWNERS.TXT  LICENSE.TXT  projects
> [laeeth@console build]$
>
>
> This is the error I receive:
>
> [laeeth@console build]$ cmake .. -DLLVM_ROOT_DIR='../../llvm' -DCMAKE_BUILD_TYPE=Release
> CMake Error at cmake/Modules/FindLLVM.cmake:140 (string):
>   string sub-command REGEX, mode MATCHALL needs at least 5 arguments total to
>   command.
> Call Stack (most recent call first):
>   cmake/Modules/FindLLVM.cmake:174 (llvm_set_libs)
>   CMakeLists.txt:18 (find_package)
>
>
> CMake Error at /usr/share/cmake-3.1/Modules/FindPackageHandleStandardArgs.cmake:138 (message):
>   Could NOT find LLVM: Found unsuitable version "", but required is at least
>   "3.1" (found )
> Call Stack (most recent call first):
>   /usr/share/cmake-3.1/Modules/FindPackageHandleStandardArgs.cmake:372 (_FPHSA_FAILURE_MESSAGE)
>   cmake/Modules/FindLLVM.cmake:196 (find_package_handle_standard_args)
>   CMakeLists.txt:18 (find_package)
>
>
> -- Configuring incomplete, errors occurred!
> See also "/btrfs0/dlang/calypso/calypso/build/CMakeFiles/CMakeOutput.log".

Hmm, I tried pretty much the same command and it worked for me.  I did notice that the command output listed the llvm directory as /usr, regardless of where my local llvm is, so maybe it also depends on the system llvm being installed?  It shows the actual LLVM_ROOT_DIR in the generated CMakeCache.txt set to the right local directory, so maybe try installing the system llvm also and see if it makes a difference?

Hi Laeeth!

On Tuesday, 24 February 2015 at 16:33:31 UTC, Laeeth Isharc wrote:
> Hi.
>
> I am struggling with using cmake to build LDC.  I have successfully built LLVM and clang following standard instructions, but I am not so familiar with cmake and do not know which directory LLVM_ROOT_DIR should point to.
>
> Ultimately I would like to build calypso, but I have the same problem with stock LDC.
>
> Running arch linux on a 64 bit machine.  I have tried various iterations of pointing to build directory as well as llvm parent.
>
> [laeeth@console build]$ cmake .. -DLLVM_ROOT_DIR='../../llvm' -DCMAKE_BUILD_TYPE=Release
>
> [laeeth@console build]$ ls ../../llvm/
> autoconf	 configure    LLVMBuild.txt	  README.txt
> bin		 CREDITS.TXT  llvm.spec.in	  test
> bindings	 docs	      Makefile		  tools
> build		 examples     Makefile.common	  unittests
> cmake		 include      Makefile.config.in  utils
> CMakeLists.txt	 lib	      Makefile.rules
> CODE_OWNERS.TXT  LICENSE.TXT  projects
> [laeeth@console build]$
>

LLVM_ROOT_DIR is the directory where LLVM is installed. It is the output of llvm-config --prefix. If you have LLVM installed then there is no need to specify LLVM_ROOT_DIR. As an alternative you can add $(llvm-config --prefix)/bin to your PATH variable.

>
> This is the error I receive:
>
> [laeeth@console build]$ cmake .. -DLLVM_ROOT_DIR='../../llvm' -DCMAKE_BUILD_TYPE=Release
> CMake Error at cmake/Modules/FindLLVM.cmake:140 (string):
>   string sub-command REGEX, mode MATCHALL needs at least 5 arguments total to
>   command.
> Call Stack (most recent call first):
>   cmake/Modules/FindLLVM.cmake:174 (llvm_set_libs)
>   CMakeLists.txt:18 (find_package)
>
>
> CMake Error at /usr/share/cmake-3.1/Modules/FindPackageHandleStandardArgs.cmake:138 (message):
>   Could NOT find LLVM: Found unsuitable version "", but required is at least
>   "3.1" (found )
> Call Stack (most recent call first):
>   /usr/share/cmake-3.1/Modules/FindPackageHandleStandardArgs.cmake:372 (_FPHSA_FAILURE_MESSAGE)
>   cmake/Modules/FindLLVM.cmake:196 (find_package_handle_standard_args)
>   CMakeLists.txt:18 (find_package)
>
>
> -- Configuring incomplete, errors occurred!
> See also "/btrfs0/dlang/calypso/calypso/build/CMakeFiles/CMakeOutput.log".

Which version of LLVM and LDC do you use? The error message looks like your using a recent LLVM with an old LDC version....

Regards,
Kai

On Tuesday, 24 February 2015 at 16:33:31 UTC, Laeeth Isharc wrote:
>
> [laeeth@console build]$ cmake .. -DLLVM_ROOT_DIR='../../llvm' -DCMAKE_BUILD_TYPE=Release
>

Hi Laeeth,

Didn't you get LLVM_ROOT_DIR mixed up with LLVM_SOURCE_PATH added for Calypso and which has to point to a LLVM + Clang source tree?

Hi All.

Thank you for the generous help.  I am not able to use a computer properly at moment, but hope to resume shortly.


Laeeth

On Tuesday, 24 February 2015 at 23:38:13 UTC, Elie Morisse wrote:
> On Tuesday, 24 February 2015 at 16:33:31 UTC, Laeeth Isharc wrote:
>>
>> [laeeth@console build]$ cmake .. -DLLVM_ROOT_DIR='../../llvm' -DCMAKE_BUILD_TYPE=Release
>>
>
> Hi Laeeth,
>
> Didn't you get LLVM_ROOT_DIR mixed up with LLVM_SOURCE_PATH added for Calypso and which has to point to a LLVM + Clang source tree?

On Tuesday, 24 February 2015 at 23:38:13 UTC, Elie Morisse wrote:
> On Tuesday, 24 February 2015 at 16:33:31 UTC, Laeeth Isharc wrote:
>>
>> [laeeth@console build]$ cmake .. -DLLVM_ROOT_DIR='../../llvm' -DCMAKE_BUILD_TYPE=Release
>>
>
> Hi Laeeth,
>
> Didn't you get LLVM_ROOT_DIR mixed up with LLVM_SOURCE_PATH added for Calypso and which has to point to a LLVM + Clang source tree?

Yes - you were spot on.  Diminishing marginal returns to working without a break.  Thanks for the help.


Laeeth.

Please if somebody will build calypso for Windows share bin. I do not have enough knowledges to build it's himself