I got the error message:
:-1: Fehler: error: gegl-0.4: linker input file not found: No such file or directory
:-1: Fehler: error: babl-01: linker input file not found: No such file or directory
So the linker cant find the libaries or can't link them for unknown reason.
I have tried:
cmake_minimum_required(VERSION 3.5)
project(perspective_lines LANGUAGES C)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -lm gegl-0.4 babl-01 ")
#export (PKG_CONFIG_PATH="${GIMP_PREFIX}/share/pkgconfig:${GIMP_PREFIX}/lib64/pkgconfig${PKG_CONFIG_PATH:+:$PKG_CONFIG_PATH}"")
#add_compile_options( -L/usr/lib64/libm.so -lm -std=gnu11 -v)
find_package(GTK2 REQUIRED)
include_directories(${GTK2_ATK_INCLUDE_DIR})
include_directories(${GTK2_CAIRO_INCLUDE_DIR})
include_directories(${GTK2_GDKCONFIG_INCLUDE_DIR})
include_directories(${GTK2_GDK_PIXBUF_INCLUDE_DIR})
include_directories(${GTK2_GLIBCONFIG_INCLUDE_DIR})
include_directories(${GTK2_GLIB_INCLUDE_DIR})
include_directories(${GTK2_GTK_INCLUDE_DIR})
include_directories(${GTK2_PANGO_INCLUDE_DIR})
include_directories("${ROOT_SOURCE_DIR}/usr/include/gegl-0.4")
include_directories("${ROOT_SOURCE_DIR}/usr/include/babl-0.1")
include_directories("${ROOT_SOURCE_DIR}/usr/lib64")
include_directories("${ROOT_SOURCE_DIR}/usr/src/debug/glibc-2.34-2.1.x86_64/cc-base/math")
include_directories("${ROOT_SOURCE_DIR}/usr/src/debug/glibc-2.34-2.1.x86_64/")
find_path(LIBGIMP_INCLUDE_DIR libgimp PATH_SUFFIXES gimp-2.0)
find_library(LIBGIMP_LIBRARY NAMES gimp-2.0 libgimp-2.0 PATH_SUFFIXES lib)
find_library(LIBGIMP_UI_LIBRARY NAMES gimpui-2.0 libgimpui-2.0 PATH_SUFFIXES lib)
find_library(LIBGIMP_WIDGETS_LIBRARY NAMES gimpwidgets-2.0 libgimpwidgets-2.0 PATH_SUFFIXES lib)
include_directories(${LIBGIMP_INCLUDE_DIR})
#find_path(LIBGEGL_INCLUDE_DIR libgegl PATH_SUFFIXES gegl-0.4)
#find_library(LIBGEGL_LIBRARY NAMES gegl-0.4 libgegl-0.4 PATH_SUFFIXES lib)
#include_directories(${LIBGEGL_INCLUDE_DIR})
include_directories(${CMAKE_SOURCE_DIR}/src)
set(CMAKE_C_IMPLICIT_LINK_DIRECTORIES "/usr/lib64/gcc/x86_64-suse-linux/9;/usr/lib64;/lib64;/usr/x86_64-suse-linux/lib")
set(SOURCES perspective_lines.c )
add_executable(perspective_lines perspective_lines.c)
target_link_libraries(perspective_lines
${GTK2_GLIB_LIBRARY_RELEASE}
${GTK2_ATK_LIBRARY_RELEASE}
${GTK2_CAIRO_LIBRARY_RELEASE}
${GTK2_GDK_LIBRARY_RELEASE}
${GTK2_GDK_PIXBUF_LIBRARY_RELEASE}
${GTK2_GIO_LIBRARY_RELEASE}
${GTK2_GMODULE_LIBRARY_RELEASE}
${GTK2_GOBJECT_LIBRARY_RELEASE}
${GTK2_GTHREAD_LIBRARY_RELEASE}
${GTK2_GTK_LIBRARY_RELEASE}
${GTK2_PANGOCAIRO_LIBRARY_RELEASE}
${GTK2_PANGO_LIBRARY_RELEASE}
${LIBGIMP_LIBRARY}
${LIBGIMP_UI_LIBRARY}
${LIBGIMP_WIDGETS_LIBRARY})
target_link_libraries(perspective_lines "/usr/lib64/libbabl-0.1.so")
target_link_libraries(perspective_lines "/usr/lib64/libgegl-04.so")
#target_link_libraries(perspective_lines gegl)
install(TARGETS perspective_lines DESTINATION ~/.config/GIMP/2.10/plug-ins/)
This doesn't work also:
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -lm gegl-0.4 -L /usr/lib64/libgegl-04.so")
Where is my mistake ?
Thank you very much for your answer.
That was the problem and ... (its embarrassing) a wrong filename:
target_link_libraries(perspective_lines "/usr/lib64/libgegl-0.4.so")
Related
I'm trying to include FreeType with cmake but am having issues with ft2build.h not being found. Here are my cmake files
main cmakelist:
cmake_minimum_required(VERSION 2.8)
project(game)
add_subdirectory(Managers)
add_subdirectory(Core)
add_subdirectory(Rendering)
add_subdirectory(Input)
add_executable(game main.cpp)
target_link_libraries(game initglew initglut camera modelmanager scenemanager shadermanager renderinglib)
find_library(GLUT glut)
find_library(OPENGL GL)
find_library(GLEW GLEW)
find_library(MATH m)
find_package(Freetype REQUIRED)
target_link_libraries(game ${GLUT} ${OPENGL} ${GLEW} ${MATH} ${FREETYPE_LIBRARIES})
include_directories(${FREETYPE_INCLUDE_DIRS})
SET(GCC_FLAGS "-Wall -Wextra -pedantic -std=c++17 -Wno-unused-parameter -g")
add_definitions(${GCC_FLAGS})
install(TARGETS game DESTINATION bin)
Rendering cmakelist:
cmake_minimum_required(VERSION 2.8)
project(rendering)
file(GLOB_RECURSE renderingcpps CONFIGURE_DEPENDS "*.cpp")
file(GLOB_RECURSE renderinghpps CONFIGURE_DEPENDS "*.hpp")
add_library(renderinglib STATIC ${renderingcpps})
install(TARGETS renderinglib DESTINATION lib)
install(FILES ${renderinghpps} DESTINATION include)
I'm including FreeType in the highest level cmakelist but a file inside a subfolder of rendering cant find ft2build.h. I tried following this link
Linking freetype with cmake
which got me where I am now but ft2build.h still cant be found. I was originally compiling with "-lfreetype -I/usr/include/freetype2" before trying to switch to cmake
I logged some output and FREETYPE_INCLUDE_DIRS is being populated with /usr/include/freetype2 but its two subcomponets are empty, not sure if thats related
I am currently trying to link the GLFW library with my executable files in CLion. After hours of research and trial & error, I am stuck. I am using find_package() to locate my GLFW library. For some reason my FindGLFW.cmake file seems to correctly locate the library in /usr/local/lib/libglfw.a when using find_library(), but my CMakeLists.txt returns empty with find_package(). I don't really understand how that's possible. Could someone help me out?
CMakeLists.txt:
cmake_minimum_required(VERSION 3.15)
project(learnopengl)
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/CMake)
find_package(glfw 3.3 REQUIRED)
message(STATUS "(CMakeLists.txt) GLFW: [${glfw}]")
if (NOT glfw)
message(SEND_ERROR "(CMakeLists) Did not find glfw_library")
endif()
add_executable(learnopengl src/main.cpp)
target_link_libraries(learnopengl glfw)
FindGLFW.cmake
find_library( GLFW_LIBRARY
NAMES
glfw3 glfw
PATHS
${GLFW_LOCATION}/lib
$ENV{GLFW_LOCATION}/lib
/usr/lib64
/usr/lib
/usr/local/lib64
/usr/local/lib
NO_DEFAULT_PATH
DOC "The GLFW library"
)
message(STATUS "(FindGLFW.cmake) GLFW_INCLUDE_DIR: [${GLFW_INCLUDE_DIR}]")
message(STATUS "(FindGLFW.cmake) GLFW_LIB: [${GLFW_LIBRARY}]")
if (NOT GLFW_LIBRARY)
message(SEND_ERROR "(FindGLFW.cmake) Did not find glfw_library")
Output when running cmake ..
-- (FindGLFW.cmake) GLFW_INCLUDE_DIR: [/usr/local/include]
-- (FindGLFW.cmake) GLFW_LIB: [/usr/local/lib/libglfw3.a]
-- (CMakeLists.txt) GLFW: []
CMake Error at CMakeLists.txt:12 (message):
(CMakeLists) Did not find glfw_library
When I tried to directly include find_library() in my CMakeLists.txt instead, it did locate the library, but when I tried to link it with my executable, I got a linker error saying it couldn't locate the library:
CMakeLists.txt
cmake_minimum_required(VERSION 3.15)
project(learnopengl)
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/CMake)
find_library( GLFW_LIBRARY
NAMES
glfw3 glfw
PATHS
${GLFW_LOCATION}/lib
$ENV{GLFW_LOCATION}/lib
/usr/lib64
/usr/lib
/usr/local/lib64
/usr/local/lib
NO_DEFAULT_PATH
DOC "The GLFW library"
)
message(STATUS "(FindGLFW.cmake) GLFW_LIB: [${GLFW_LIBRARY}]")
if (NOT GLFW_LIBRARY)
message(SEND_ERROR "(CMakeLists.txt) Did not find glfw_library")
endif()
add_executable(learnopengl src/main.cpp)
target_link_libraries(learnopengl GLFW_LIBRARY)
Output:
~/dev/projects/opengl/learnopengl/build cmake ..
-- (CMakeLists.txt) GLFW_LIB: [/usr/local/lib/libglfw3.a]
-- Configuring done
-- Generating done
-- Build files have been written to: /Users/Philipp/dev/projects/opengl/learnopengl/build
~/dev/projects/opengl/learnopengl/build cmake --build .
[ 50%] Linking CXX executable learnopengl
ld: library not found for -lGLFW_LIBRARY
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[2]: *** [learnopengl] Error 1
make[1]: *** [CMakeFiles/learnopengl.dir/all] Error 2
make: *** [all] Error 2
I would really appreciate some hints as to what I am doing wrong. I can't see why it wouldn't locate/link the library correctly.
Thank you!
In cmake, arguments are case sensitive, so find_package should be
find_package(GLFW 3.3 REQUIRED)
Linker problem can be found easily in the logs. You are trying to link -lGLFW_LIBRARY, however what you want to link is GLFW_LIBRARY's value, /usr/local/lib/libglfw3.a .
target_link_libraries(learnopengl ${GLFW_LIBRARY})
I have compiled and installed with CMake the library SDL_bgi to a custom prefix /custom/prefix/. This library uses SDL2.
Now I want to use it in another project with the structure below but I get a linker error when I compile with make:
/usr/bin/c++ CMakeFiles/test.dir/test.cpp.o -o test -Wl,-rpath,/custom/prefix/lib: /custom/prefix/lib/libSDL_bgi.so
/usr/bin/ld: /custom/prefix/lib/libSDL_bgi.so: undefined reference to `SDL_DestroyWindow'
/usr/bin/ld: /custom/prefix/lib/libSDL_bgi.so: undefined reference to `SDL_CreateRenderer'
I have also written the file cmake/modules/FindSDL_bgi.cmake so that may be wrong as well.
If I compile with the following command I can compile correctly:
g++ test.cpp -I . -lSDL_bgi -lSDL2 -I /custom/prefix/include/ -L /custom/prefix/lib/
What am I doing wrongly?
Project structure:
cmake/modules/FindSDL_bgi.cmake
src/test/CMakeLists.txt
src/test/test.cpp
CMakeLists.txt
Libraries:
/usr/lib/libSDL.so
/usr/include/SDL.h
/custom/prefix/lib/libSDL_bgi.so
/custom/prefix/include/graphics.h
/custom/prefix/include/SDL2/libSDL_bgi.h
cmake/modules/FindSDL_bgi.cmake:
# - Try to find LibXml2
# Once done this will define
# SDL_BGI_FOUND - System has LibXml2
# SDL_BGI_INCLUDE_DIRS - The LibXml2 include directories
# SDL_BGI_LIBRARIES - The libraries needed to use LibXml2
# Hardcoded for now
set(SDL_BGI_PATH
/custom/prefix/
)
set(SDL_BGI_SEARCH_PATHS
/usr
/usr/local
/opt
${SDL_BGI_PATH}
)
find_path(SDL_BGI_INCLUDE_DIR graphics.h
HINTS
$ENV{SDL2DIR}
PATH_SUFFIXES include
PATHS ${SDL2_SEARCH_PATHS}
)
find_library(SDL_BGI_LIBRARY
NAMES SDL_bgi
HINTS
$ENV{SDL2DIR}
PATH_SUFFIXES lib64 lib
PATHS ${SDL2_SEARCH_PATHS}
)
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(SDL_bgi REQUIRED_VARS SDL_BGI_LIBRARY SDL_BGI_INCLUDE_DIR)
CMakeLists.txt
cmake_minimum_required(VERSION 3.15)
project(programmi_kennedy)
list(APPEND CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/cmake/modules")
set(COMPAT_HEADERS
${CMAKE_CURRENT_SOURCE_DIR}/include/
)
find_package(SDL_bgi REQUIRED)
add_subdirectory(src/test)
src/CMakeLists.txt:
add_executable(test test.cpp)
target_include_directories(test PUBLIC ${SDL_BGI_INCLUDE_DIR})
target_link_libraries(test PRIVATE ${SDL_BGI_LIBRARY})
install(TARGETS test DESTINATION bin)
/custom/prefix/include/graphics.h:
#include <SDL2/SDL_bgi.h>
What I was missing is to link to SDL2 with find_package(SDL2 REQUIRED) and link to SDL2::SDL2. (I did try to link to ${SDL2_LIBRARIES} but the syntax is different now). Thanks to #KamilCuk to point me to the right direction.
EDIT:
I changed the FindBGI_sdl.cmake module in order to search for the dependencies (SDL2) and link against them using the INTERFACE keyword. In this way the target test can link only against SDL_bgi and have the dependencies resolved automatically.
src/CMakeLists.txt:
add_executable(test test.cpp)
target_link_libraries(test PRIVATE SDL_bgi::SDL_bgi)
install(TARGETS test DESTINATION bin)
cmake/modules/FindSDL_bgi.cmake:
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.
#[=======================================================================[.rst:
FindSDL_bgi
-------
Finds the SDL_bgi library.
Imported Targets
^^^^^^^^^^^^^^^^
This module provides the following imported targets, if found:
``SDL_bgi::SDL_bgi``
The SDL_bgi library
Result Variables
^^^^^^^^^^^^^^^^
This will define the following variables:
``SDL_bgi_FOUND``
True if the system has the SDL_bgi library.
``SDL_bgi_VERSION``
The version of the SDL_bgi library which was found.
``SDL_bgi_INCLUDE_DIRS``
Include directories needed to use SDL_bgi.
``SDL_bgi_LIBRARIES``
Libraries needed to link to SDL_bgi.
Cache Variables
^^^^^^^^^^^^^^^
The following cache variables may also be set:
``SDL_bgi_INCLUDE_DIR``
The directory containing ``foo.h``.
``SDL_bgi_LIBRARY``
The path to the SDL_bgi library.
#]=======================================================================]
find_package(SDL2 REQUIRED)
find_package(PkgConfig)
pkg_check_modules(PC_SDL_bgi QUIET SDL_bgi)
find_path(SDL_bgi_INCLUDE_DIR
NAMES graphics.h
PATHS ${PC_SDL_bgi_INCLUDE_DIRS}
)
find_library(SDL_bgi_LIBRARY
NAMES SDL_bgi
PATHS ${PC_SDL_bgi_LIBRARY_DIRS}
)
set(SDL_bgi_VERSION ${PC_SDL_bgi_VERSION})
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(SDL_bgi
FOUND_VAR SDL_bgi_FOUND
REQUIRED_VARS
SDL_bgi_LIBRARY
SDL_bgi_INCLUDE_DIR
VERSION_VAR SDL_bgi_VERSION
)
if(SDL_bgi_FOUND AND NOT TARGET SDL_bgi::SDL_bgi)
add_library(SDL_bgi::SDL_bgi UNKNOWN IMPORTED)
set_target_properties(SDL_bgi::SDL_bgi PROPERTIES
IMPORTED_LOCATION "${SDL_bgi_LIBRARY}"
INTERFACE_COMPILE_OPTIONS "${PC_SDL_bgi_CFLAGS_OTHER}"
INTERFACE_INCLUDE_DIRECTORIES "${SDL_bgi_INCLUDE_DIR}"
)
target_link_libraries(SDL_bgi::SDL_bgi INTERFACE SDL2::SDL2)
endif()
mark_as_advanced(
SDL_bgi_INCLUDE_DIR
SDL_bgi_LIBRARY
SDL2_DIR
)
Useful references:
https://pabloariasal.github.io/2018/02/19/its-time-to-do-cmake-right/
https://cmake.org/cmake/help/v3.17/manual/cmake-developer.7.html
I'm currently getting used to cmake and I'm trying to compile a small project with a .so library linking.
My project is the following.
/
CMakeLists.txt
inc/
Als.h
src/
main.c
CMakeLists.txt
lib/
libals.so
build/
I'm compiling from the build directory with:
$ cmake ..
-- DIR:
-- Configuring done
-- Generating done
-- Build files have been written to: /home/julien/tmp/cmakeTest/build
And then:
$ make
Linking C executable cmakeTest
/usr/bin/ld: ne peut trouver -lals
collect2: error: ld returned 1 exit status
src/CMakeFiles/cmakeTest.dir/build.make:85: recipe for target 'src/cmakeTest' failed
make[2]: *** [src/cmakeTest] Error 1
CMakeFiles/Makefile2:75: recipe for target 'src/CMakeFiles/cmakeTest.dir/all' failed
make[1]: *** [src/CMakeFiles/cmakeTest.dir/all] Error 2
Makefile:76: recipe for target 'all' failed
make: *** [all] Error 2
The linker seems to be unable to find the libals.so file.
Here is the file /CMakeLists.txt:
cmake_minimum_required(VERSION 2.8)
PROJECT(cmaketest)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Werror")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -O3")
INCLUDE_DIRECTORIES(
inc
)
ADD_SUBDIRECTORY(src)
get_directory_property(OUT_VAR LINK_DIRECTORIES)
message(STATUS "DIR: ${OUT_VAR}")
And here is the file /src/CMakeLists.txt:
PROJECT(cmakeTest)
FILE(
GLOB
${PROJECT_NAME}_Sources
*.c
)
INCLUDE_DIRECTORIES(
inc
inc
)
ADD_EXECUTABLE(
${PROJECT_NAME}
${${PROJECT_NAME}_Sources}
)
LINK_DIRECTORIES(
/home/julien/tmp/cmakeTest/lib/
)
TARGET_LINK_LIBRARIES(
${PROJECT_NAME}
als
pthread
)
Maybe I missed something but if I change the /src/CMakeLists.txt to:
PROJECT(cmakeTest)
FILE(
GLOB
${PROJECT_NAME}_Sources
*.c
)
INCLUDE_DIRECTORIES(
inc
inc
)
ADD_EXECUTABLE(
${PROJECT_NAME}
${${PROJECT_NAME}_Sources}
)
TARGET_LINK_LIBRARIES(
${PROJECT_NAME}
/home/julien/tmp/cmakeTest/lib/libals.so
pthread
)
The compilation is ok. Does someone know why the linker is unable to find libals.so when I'm giving him the good directory path to look in?
The LINK_DIRECTORIES functions seems not to be working.
Besides the solution you already have, and my solution in a comment, the problem you have with the CMake file shown is the order in which you invoke the CMake commands.
From the link_directories command reference:
The command will apply only to targets created after it is called.
[Emphasis mine]
You simply need to call link_directories before you call add_executable.
I've got an example project:
.
├── CMakeLists.txt
└── src
└── test1.f90
where test1.f90 uses a specific version of Lapack (therefore I can't use FindLAPACK).
I am trying to compile this using CMake:
cmake_minimum_required(VERSION 2.5)
project(TEST)
file(GLOB_RECURSE sources src/*.f90)
add_executable(cmake.x ${sources})
enable_language(Fortran)
set(CMAKE_Fortran_COMPILER_ID "IBM")
if(CMAKE_Fortran_COMPILER_ID MATCHES "IBM")
set(CMAKE_SHARED_LIBRARY_LINK_Fortran_FLAGS)
MESSAGE(STATUS "IBM")
SET(CMAKE_EXE_LINKER_FLAGS "-Wl,-allow-multiple-definition ")
set(CMAKE_Fortran_COMPILER mpixlf2008_r)
set(debug "-C")
endif()
set(CMAKE_Fortran_FLAGS_DEBUG "${CMAKE_Fortran_FLAGS_DEBUG} ${bounds}")
set(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} ${dialect}")
set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake/Modules/")
MESSAGE( STATUS "cmake_module_path: " ${CMAKE_MODULE_PATH})
If I run make VERBOSE=1 this results in:
...
[100%] Building Fortran object CMakeFiles/cmake.x.dir/src/test1.o
mpixlf2008_r -c /work/jias12/jias1217/lapack_test/src/test1.f90 -o CMakeFiles/cmake.x.dir/src/test1.o
** main === End of Compilation 1 ===
1501-510 Compilation successful for file test1.f90.
Linking Fortran executable cmake.x
/usr/bin/cmake -E cmake_link_script CMakeFiles/cmake.x.dir/link.txt --verbose=1
mpixlf2008_r -Wl,-allow-multiple-definition CMakeFiles/cmake.x.dir/src/test1.o -o cmake.x
CMakeFiles/cmake.x.dir/src/test1.o:(.text+0x5c): undefined reference to `sgesv'
make[2]: *** [cmake.x] Error 1
make[2]: Leaving directory `/work/jias12/jias1217/lapack_test'
make[1]: *** [CMakeFiles/cmake.x.dir/all] Error 2
make[1]: Leaving directory `/work/jias12/jias1217/lapack_test'
make: *** [all] Error 2
This obviously doesn't work, because I didn't include LAPACK, which I then can do manually:
mpixlf2008_r -Wl,-allow-multiple-definition CMakeFiles/cmake.x.dir/src/test1.o -o cmake.x -L$LAPACK_LIB -L/bgsys/local/lib -llapack -lesslbg
Which works fine. How can I achieve this using CMake? I want to add -L$LAPACK_LIB -L/bgsys/local/lib -llapack -lesslbg to the linker after the *.o files. All I've managed is to add them as flags before the *.o files, which fails. I've look at a number of examples on the web, but I cannot find something which works in my case. This is the test1.f90.
This is in the folders:
> ls $LAPACK_LIB
libblas_extra.a libcblas.a liblapack.a liblapacke.a libtmglib.a
ls /bgsys/local/lib/
BGeic.pm BG.pm libesslbg.a libesslsmpbg.a
As Tsyvarev correctly mentioned:
What is wrong with target_link_libraries which links with the
libraries (meaning of flag -l) and link_directories which specifies
libraries search path (meaning of flag -L)?
Those hase to be called in the right order, which leads to:
cmake_minimum_required(VERSION 2.5)
project(TEST)
file(GLOB_RECURSE sources src/*.f90)
link_directories($ENV{LAPACK_LIB} /bgsys/local/lib)
enable_language(Fortran)
add_executable(cmake.x ${sources})
target_link_libraries(cmake.x lapack esslbg)