Re: [CMake] using external library

[Kai Wolf]

Steph,

what you want to achieve is better known as a *Superbuild* in the CMake
world. You have several options here, but the most basic one is probably
the following:

You setup another repository which only builds all the external
dependencies (such as Qt) and put them in a predefined place. In your
actual project you could refer to those prebuilt libraries using the
CMAKE_PREFIX_PATH variable, which should point to the install directory
from your external build. This way all the external stuff will only be
build once (probably via CI) and all your developers don't need to build
all the dependencies themselves.

Regarding the external package introspection. You could use find_package()
to check, if the correct version of your external library has been found on
the system and just use it. In any other case you check for the _NOTFOUND
variable and set it up locally, with the installation target pointing to
the CMAKE_PREFIX_PATH as mentioned above.

On a personal note, I would not use such a build system layout myself, as
it quickly becomes unclear from where a dependency is coming from and if
the dependency has all the required flags and settings as needed for the
software project. So you might want to reconsider a more cleaner layout.
For inspiration you may have a look at the CMake configuration of the
OpenChemistry project [1].

Greetings

[1] https://github.com/OpenChemistry/openchemistry

Kai Wolf

http://kai-wolf.me/
kai.w...@gmail.com

2018-03-05 11:59 GMT+01:00 Stéphane Ancelot :

> Hi,
>
> I need some external libraries in my project (eg a particular version of
> qt..)
>
> These external projects have been cloned locally , I could use
> ExternalProject_Add to clone it in my project.
>
> My major problem is that I will compile it each time and this is time and
> disk usage  consuming, for each users .
>
> I sounds to me better to have the compiled version available in my
> development system and use only header+binaries of this particular release.
>
> So, the scenario I would like to obtain :
>
> check if My Qt5 binaries are setted up in my system in a predefined
> directory (to not overlap with possible system one), if not setted up, then
>
> clone qt needed release and install it in my predefined system directory
> once (like /usr/local or a directory shared between users) .
>
> I hope you understood and it is enough clear 
>
> Thanks
>
> Steph
>
>
>
>
>
>
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[CMake] using external library

[Stéphane Ancelot]

Hi,

I need some external libraries in my project (eg a particular version of 
qt..)


These external projects have been cloned locally , I could use 
ExternalProject_Add to clone it in my project.


My major problem is that I will compile it each time and this is time 
and disk usage  consuming, for each users .


I sounds to me better to have the compiled version available in my 
development system and use only header+binaries of this particular release.


So, the scenario I would like to obtain :

check if My Qt5 binaries are setted up in my system in a predefined 
directory (to not overlap with possible system one), if not setted up, then


clone qt needed release and install it in my predefined system directory 
once (like /usr/local or a directory shared between users) .


I hope you understood and it is enough clear 

Thanks

Steph






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[CMake] Compiling cmake-3.10.2 against ncursesw

[John Frankish]

Hi,

I've been trying to compile cmake-3.10.2 on a system that has only ncursesw 
using the ./bootstrap script.

I could not find a way to tell ./bootstrap to use ncursesw, so I added the 
following to Modules/FindCurses.cmake

set(CURSES_NEED_WIDE TRUE)

..this enables ./bootstrap to find libncursesw, but not libformw, so I also 
added:

set(CURSES_FORM_LIBRARY "/usr/local/lib/libformw.so")

..and ./bootstrap completes successfully.

However "make" fails when it cannot find form.h (even though it found 
/usr/local/include/ncursesw/ncurses.h).

After symlinking  /usr/local/include/ncursesw/form.h -> ../form.h, "make" 
completes successfully.

Is there any easy way to use ./bootstrap on an ncursesw system?

If Modules/FindCurses.cmake has the problems above when compiling cmake itself, 
won't it also have problems when compiling other stuff against ncursesw?

Regards
John

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[Cmake-commits] CMake branch, master, updated. v3.11.0-rc2-136-g49e777a

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- Log -
https://cmake.org/gitweb?p=cmake.git;a=commitdiff;h=49e777aeb1dbb141383faf1e5cb20c7443952302
commit 49e777aeb1dbb141383faf1e5cb20c7443952302
Merge: dc38970 0a21d82
Author: Brad King 
AuthorDate: Mon Mar 5 14:02:07 2018 +
Commit: Kitware Robot 
CommitDate: Mon Mar 5 09:02:14 2018 -0500

Merge topic 'general_cleanup_enhance'

0a21d820d3 Remove c_str() from calls to converttorelativeformake in XCode 
Generator
f93cc4158e Refactor cmCacheManager::LoadCache to use ostringstream
915b71010c Enhance RunCMake test coverage for file(GLOB)
fcaa134c6c Refactor HandleGlobCommand
cf5d0b49e8 Adjust class description in cmFileTimeComparison.h

Acked-by: Kitware Robot 
Merge-request: !1810


https://cmake.org/gitweb?p=cmake.git;a=commitdiff;h=dc38970f8388e21227c8cdc50df93431c3719030
commit dc38970f8388e21227c8cdc50df93431c3719030
Merge: b39a9dd 7776ce9
Author: Brad King 
AuthorDate: Mon Mar 5 14:01:24 2018 +
Commit: Kitware Robot 
CommitDate: Mon Mar 5 09:01:42 2018 -0500

Merge topic 'object-library-linking'

7776ce98c3 Tests: Add cases for usage requirements of linked object libs
bafe655b11 Help: Document linking behavior of OBJECT libraries
57538224d0 objlib: Link object-files from `OBJECT` libraries.
9a7f039ee7 objlib: Allow `OBJECT` libraries to link to `OBJECT` libraries.
dfb6e84082 objlib: Allow other libraries to link to `OBJECT` libraries.
51249e69ea objlib: Allow `OBJECT` libraries to link to other libraries.
e22c45d4c9 Tests: Teach RunCMake to ignore AIX ld warnings about GNU atexit

Acked-by: Kitware Robot 
Acked-by: Pavel Solodovnikov 
Acked-by: John Drouhard 
Merge-request: !1524


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commit b39a9dd897f3062273acb4d2ea3dbf4d9c7343c3
Merge: 2fbd771 1ac042a
Author: Brad King 
AuthorDate: Mon Mar 5 14:00:18 2018 +
Commit: Kitware Robot 
CommitDate: Mon Mar 5 09:00:30 2018 -0500

Merge topic 'def-generate-windows-only'

1ac042aa67 Do not generate rules for .def generation where not supported

Acked-by: Kitware Robot 
Merge-request: !1809


https://cmake.org/gitweb?p=cmake.git;a=commitdiff;h=7776ce98c3fc1fc656c646ea783c23aee27261a2
commit 7776ce98c3fc1fc656c646ea783c23aee27261a2
Author: Brad King 
AuthorDate: Thu Mar 1 09:25:50 2018 -0500
Commit: Brad King 
CommitDate: Thu Mar 1 09:28:00 2018 -0500

Tests: Add cases for usage requirements of linked object libs

Add tests to cover transitive usage requirements on installation and
export of targets that link to object libraries.

Issue: #14778

diff --git a/Tests/ExportImport/Export/CMakeLists.txt 
b/Tests/ExportImport/Export/CMakeLists.txt
index 4f663f6..cbc8c6b 100644
--- a/Tests/ExportImport/Export/CMakeLists.txt
+++ b/Tests/ExportImport/Export/CMakeLists.txt
@@ -88,7 +88,17 @@ else()
   set(maybe_OBJECTS_DESTINATION "")
 endif()
 
-add_library(testLib9Obj OBJECT testLib9Obj.c)
+cmake_policy(PUSH)
+cmake_policy(SET CMP0022 NEW)
+add_library(testLib9ObjPub OBJECT testLib9ObjPub.c)
+target_compile_definitions(testLib9ObjPub INTERFACE testLib9ObjPub_USED)

Re: [cmake-developers] Platform/MINGW64_NT-6.1: can't bootstrap cmake

[Brad King]

On 03/05/2018 02:32 PM, Claus Klein wrote:
> I have problems to build cmake  an msys2.
> It can be found at http://www.msys2.org.

We have nightly testing for MSYS2's MinGW toolchain that compiles
to a native Windows binary, including the bootstrap script:

https://open.cdash.org/testDetails.php?test=631628857=5278231

I think MSYS2 provides a package for a CMake that uses the MSYS2
runtime library, but there is no upstream support for that currently.

-Brad
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[cmake-developers] Platform/MINGW64_NT-6.1: can't bootstrap cmake

[Claus Klein]

Hi,
I have problems to build cmake  an msys2.
It can be found at http://www.msys2.org.

With regards
Claus

Avoid ctest truncation of output: CTEST_FULL_OUTPUT

=== MAIN VARIABLES

CMAKE_STATIC_LIBRARY_PREFIX == "lib"
CMAKE_STATIC_LIBRARY_SUFFIX == ".a"
CMAKE_SHARED_LIBRARY_PREFIX == "lib"
CMAKE_SHARED_LIBRARY_SUFFIX == ".so"
CMAKE_SHARED_MODULE_PREFIX == "lib"
CMAKE_SHARED_MODULE_SUFFIX == ".so"


CMAKE_DL_LIBS == "dl"
CMAKE_LIBRARY_PATH_FLAG == "-L"
CMAKE_LINK_LIBRARY_FLAG == "-l"
CMAKE_SKIP_RPATH == "NO"
CMAKE_SYSTEM_INFO_FILE == "Platform/MINGW64_NT-6.1"
CMAKE_SYSTEM_NAME == "MINGW64_NT-6.1"
CMAKE_SYSTEM == "MINGW64_NT-6.1-2.9.0(0.318/5/3)"
CMAKE_CXX_COMPILER == "/usr/bin/CC.exe"
CMAKE_C_COMPILER == "/usr/bin/cc.exe"
CMAKE_COMPILER_IS_GNUCC == "1"
CMAKE_COMPILER_IS_GNUCXX == "1"

// C shared library flag
CMAKE_SHARED_LIBRARY_C_FLAGS == "-fPIC"
CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS == "-shared"
CMAKE_SHARED_LIBRARY_LINK_FLAGS == ""
CMAKE_SHARED_LIBRARY_RUNTIME_FLAG == ""
CMAKE_SHARED_LIBRARY_RUNTIME_FLAG_SEP == ""
CMAKE_SHARED_LIBRARY_LINK_STATIC_C_FLAGS == ""
CMAKE_SHARED_LIBRARY_LINK_DYNAMIC_C_FLAGS == ""

// C shared module flags
CMAKE_SHARED_MODULE_C_FLAGS  == "-fPIC"
CMAKE_SHARED_MODULE_CREATE_C_FLAGS == "-shared"
CMAKE_SHARED_MODULE_LINK_STATIC_C_FLAGS == ""
CMAKE_SHARED_MODULE_LINK_DYNAMIC_C_FLAGS == ""

// C exe flags
CMAKE_EXE_LINK_STATIC_C_FLAGS == ""
CMAKE_EXE_LINK_DYNAMIC_C_FLAGS == ""

// CXX shared library flags
CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS == "-shared"
CMAKE_SHARED_LIBRARY_CXX_FLAGS == "-fPIC"
CMAKE_SHARED_LIBRARY_LINK_CXX_FLAGS == ""
CMAKE_SHARED_LIBRARY_RUNTIME_CXX_FLAG == ""
CMAKE_SHARED_LIBRARY_RUNTIME_CXX_FLAG_SEP == ""
CMAKE_SHARED_LIBRARY_LINK_STATIC_CXX_FLAGS == ""
CMAKE_SHARED_LIBRARY_LINK_DYNAMIC_CXX_FLAGS == ""

// CXX shared module flags
CMAKE_SHARED_MODULE_CREATE_CXX_FLAGS == "-shared"
CMAKE_SHARED_MODULE_CXX_FLAGS == "-fPIC"
CMAKE_SHARED_MODULE_LINK_STATIC_CXX_FLAGS == ""
CMAKE_SHARED_MODULE_LINK_DYNAMIC_CXX_FLAGS == ""

// CXX exe flags
CMAKE_EXE_LINK_STATIC_CXX_FLAGS == ""
CMAKE_EXE_LINK_DYNAMIC_CXX_FLAGS == ""

CMAKE_USER_MAKE_RULES_OVERRIDE == ""
CMAKE_VERBOSE_MAKEFILE == "FALSE"
CMAKE_BUILD_TYPE == ""
CMAKE_CXX_FLAGS == ""
CMAKE_CXX_FLAGS_DEBUG == "-g"
CMAKE_CXX_FLAGS_MINSIZEREL == "-Os -DNDEBUG"
CMAKE_CXX_FLAGS_RELEASE == "-O3 -DNDEBUG"
CMAKE_CXX_FLAGS_RELWITHDEBINFO == "-O2 -g -DNDEBUG"

CMAKE_C_FLAGS == ""
CMAKE_C_FLAGS_DEBUG == "-g"
CMAKE_C_FLAGS_MINSIZEREL == "-Os -DNDEBUG"
CMAKE_C_FLAGS_RELEASE == "-O3 -DNDEBUG"
CMAKE_C_FLAGS_RELWITHDEBINFO == "-O2 -g -DNDEBUG"

// build rules
CMAKE_CXX_CREATE_SHARED_LIBRARY == " 
   
  -o 
  "
CMAKE_CXX_CREATE_SHARED_MODULE == " 
   
  -o 
  "
CMAKE_C_CREATE_SHARED_LIBRARY == " 
   
  -o  
 "
CMAKE_C_CREATE_SHARED_MODULE == " 
   
  -o  
 "
CMAKE_CXX_CREATE_STATIC_LIBRARY == ""
CMAKE_C_CREATE_STATIC_LIBRARY == ""
CMAKE_CXX_COMPILE_OBJECT == " 
-o  -c "
CMAKE_C_COMPILE_OBJECT == "-o 
   -c "
CMAKE_C_LINK_EXECUTABLE == "   
   -o  "
CMAKE_CXX_LINK_EXECUTABLE == "   
-o  "

=
=== VARIABLES
=
CMAKE_AR "/usr/bin/ar.exe"
CMAKE_AR "/usr/bin/ar.exe"
CMAKE_BASE_NAME "g++"
CMAKE_BINARY_DIR "/e/workspace/tps/__cmake_systeminformation"
CMAKE_BUILD_TOOL "/usr/bin/make.exe"
CMAKE_BUILD_TYPE ""
CMAKE_C11_COMPILE_FEATURES "c_std_11;c_static_assert"
CMAKE_C11_EXTENSION_COMPILE_OPTION "-std=gnu11"
CMAKE_C11_STANDARD_COMPILE_OPTION "-std=c11"
CMAKE_C90_COMPILE_FEATURES "c_std_90;c_function_prototypes"
CMAKE_C90_EXTENSION_COMPILE_OPTION "-std=gnu90"
CMAKE_C90_STANDARD_COMPILE_OPTION "-std=c90"
CMAKE_C99_COMPILE_FEATURES "c_std_99;c_restrict;c_variadic_macros"
CMAKE_C99_EXTENSION_COMPILE_OPTION "-std=gnu99"
CMAKE_C99_STANDARD_COMPILE_OPTION "-std=c99"
CMAKE_CFG_INTDIR "."
CMAKE_COLOR_MAKEFILE "ON"
CMAKE_COMMAND "/usr/bin/cmake.exe"
CMAKE_COMPILER_IS_GNUCC "1"
CMAKE_COMPILER_IS_GNUCXX "1"
CMAKE_COMPILER_IS_MSYS "1"
CMAKE_CPACK_COMMAND "/usr/bin/cpack.exe"
CMAKE_CROSSCOMPILING "FALSE"
CMAKE_CTEST_COMMAND "/usr/bin/ctest.exe"
CMAKE_CURRENT_BINARY_DIR "/e/workspace/tps/__cmake_systeminformation"
CMAKE_CURRENT_LIST_DIR "/e/workspace/tps/__cmake_systeminformation"
CMAKE_CURRENT_LIST_FILE 
"/e/workspace/tps/__cmake_systeminformation/CMakeLists.txt"
CMAKE_CURRENT_SOURCE_DIR "/e/workspace/tps/__cmake_systeminformation"
CMAKE_CXX11_COMPILE_FEATURES 

[Cmake-commits] CMake branch, master, updated. v3.11.0-rc2-137-g674c5b3

[Kitware Robot]

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commit 674c5b306671129bc4a854137c304f19e2c3bf65
Author: Kitware Robot <kwro...@kitware.com>
AuthorDate: Tue Mar 6 00:01:23 2018 -0500
Commit: Kitware Robot <kwro...@kitware.com>
CommitDate: Tue Mar 6 00:01:23 2018 -0500

CMake Nightly Date Stamp

diff --git a/Source/CMakeVersion.cmake b/Source/CMakeVersion.cmake
index 7ec49e8..c4acb16 100644
--- a/Source/CMakeVersion.cmake
+++ b/Source/CMakeVersion.cmake
@@ -1,5 +1,5 @@
 # CMake version number components.
 set(CMake_VERSION_MAJOR 3)
 set(CMake_VERSION_MINOR 11)
-set(CMake_VERSION_PATCH 20180305)
+set(CMake_VERSION_PATCH 20180306)
 #set(CMake_VERSION_RC 1)

---

Summary of changes:
 Source/CMakeVersion.cmake |2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)


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