mirror of https://github.com/fltk/fltk
Fix and improve generation of fltk-config (#954 and more)
Parts of this commit fix the usage of CMake targets in the generation process of fltk-config modified by PR #954. The rest improves handling of variables used to generate fltk-config, removes obsolete comments, documents variables like GLLIBS etc. which had to be done anyway.
This commit is contained in:
Albrecht Schlosser
parent
5417ea5f1f
commit
b4cf1a9824
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@ -605,11 +605,14 @@ if(FLTK_BUILD_GL)
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pkg_check_modules(PKG_EGL IMPORTED_TARGET egl)
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pkg_check_modules(PKG_GL IMPORTED_TARGET gl)
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pkg_check_modules(PKG_GLU IMPORTED_TARGET glu)
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if(NOT (WLD_EGL_FOUND AND PKG_EGL_FOUND AND PKG_GL_FOUND AND PKG_GLU_FOUND))
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message(STATUS "Modules 'wayland-egl, egl, gl, and glu' are required to build for the Wayland backend.")
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message(FATAL_ERROR "*** Aborting ***")
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endif(NOT (WLD_EGL_FOUND AND PKG_EGL_FOUND AND PKG_GL_FOUND AND PKG_GLU_FOUND))
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endif()
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endif(FLTK_BACKEND_WAYLAND)
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if(FLTK_BACKEND_X11)
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set(OPENGL_FOUND TRUE)
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find_library(OPENGL_LIB GL)
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@ -628,7 +631,7 @@ if(FLTK_BUILD_GL)
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set(HAVE_GL_GLU_H ${HAVE_OPENGL_GLU_H})
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endif(APPLE)
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endif(FLTK_BACKEND_X11)
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else()
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else(FLTK_BUILD_GL)
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set(OPENGL_FOUND FALSE)
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set(HAVE_GL FALSE)
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set(HAVE_GL_GLU_H FALSE)
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@ -641,24 +644,32 @@ mark_as_advanced(OPENGL_LIB) # internal cache variable, not relevant for users
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# from the cache above. It has been marked "advanced" before in resources.cmake.
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mark_as_advanced(HAVE_GL_GLU_H)
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# Note: GLLIBS is a CMake 'list' and is used exclusively to generate fltk-config !
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# FIXME, this should be improved!
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# We should probably deduct this from OPENGL_LIBRARIES but it turned
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# out to be difficult since FindOpenGL seems to return different
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# syntax depending on the platform (and maybe also CMake version).
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# Hence we use the following code...
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set(GLLIBS)
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set(FLTK_GL_FOUND FALSE)
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if(OPENGL_FOUND)
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set(FLTK_GL_FOUND TRUE)
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find_path(OPENGL_GLU_INCLUDE_DIR NAMES GL/glu.h OpenGL/glu.h HINTS ${OPENGL_INCLUDE_DIR} ${X11_INCLUDE_DIR})
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set(CMAKE_REQUIRED_INCLUDES ${OPENGL_INCLUDE_DIR}/GL ${OPENGL_GLU_INCLUDE_DIR})
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# Set GLLIBS (used in fltk-config).
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# We should probably deduct this from OPENGL_LIBRARIES but it turned
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# out to be difficult since FindOpenGL seems to return different
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# syntax depending on the platform (and maybe also CMake version).
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# Hence we use the following code...
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if(WIN32)
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set(GLLIBS "-lglu32 -lopengl32")
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list(APPEND GLLIBS -lglu32 -lopengl32)
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elseif(APPLE AND NOT FLTK_BACKEND_X11)
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set(GLLIBS "-framework OpenGL")
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list(APPEND GLLIBS "-framework OpenGL")
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elseif(FLTK_BACKEND_WAYLAND)
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set(GLLIBS PkgConfig::WLD_EGL PkgConfig::PKG_EGL PkgConfig::PKG_GLU PkgConfig::PKG_GL)
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foreach(_lib WLD_EGL PKG_EGL PKG_GLU PKG_GL)
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list(APPEND GLLIBS ${${_lib}_LDFLAGS})
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endforeach(_lib )
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else()
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set(GLLIBS "-lGLU -lGL")
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list(APPEND GLLIBS -lGLU -lGL)
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endif(WIN32)
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# check if function glXGetProcAddressARB exists
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@ -667,11 +678,6 @@ if(OPENGL_FOUND)
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check_function_exists(glXGetProcAddressARB HAVE_GLXGETPROCADDRESSARB)
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set(CMAKE_REQUIRED_LIBRARIES ${TEMP_REQUIRED_LIBRARIES})
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unset(TEMP_REQUIRED_LIBRARIES)
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set(FLTK_GL_FOUND TRUE)
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else()
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set(FLTK_GL_FOUND FALSE)
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set(GLLIBS)
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endif(OPENGL_FOUND)
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#######################################################################
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@ -861,10 +867,9 @@ if((X11_Xft_FOUND OR NOT USE_PANGOXFT) AND FLTK_USE_PANGO)
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# add required libraries to fltk-config ...
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if(USE_PANGOXFT)
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list(APPEND FLTK_LDLIBS PkgConfig::PANGOXFT)
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list(APPEND FLTK_LDLIBS ${PANGOXFT_LDFLAGS})
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endif(USE_PANGOXFT)
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list(APPEND FLTK_LDLIBS PkgConfig::PANGOCAIRO)
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list(REMOVE_DUPLICATES FLTK_LDLIBS)
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list(APPEND FLTK_LDLIBS ${PANGOCAIRO_LDFLAGS})
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# *FIXME* Libraries should not be added explicitly if possible
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if(FLTK_BACKEND_WAYLAND AND FLTK_USE_LIBDECOR_GTK AND NOT USE_SYSTEM_LIBDECOR)
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@ -874,8 +879,6 @@ if((X11_Xft_FOUND OR NOT USE_PANGOXFT) AND FLTK_USE_PANGO)
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list(APPEND FLTK_LDLIBS -lX11)
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endif()
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list(REMOVE_DUPLICATES FLTK_LDLIBS)
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if(APPLE)
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get_filename_component(PANGO_L_PATH ${HAVE_LIB_PANGO} PATH)
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set(LDFLAGS "${LDFLAGS} -L${PANGO_L_PATH}")
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@ -83,10 +83,8 @@ set(FLTK_BUILD_INCLUDE_DIRECTORIES)
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set(FLTK_LDLIBS "")
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set(FLTK_LIBRARIES "")
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set(GLLIBS "")
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set(IMAGELIBS "")
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set(LDFLAGS "")
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set(LIBS "")
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set(LINK_LIBS "")
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set(STATICIMAGELIBS "")
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@ -24,7 +24,6 @@ if(DEBUG_VARIABLES_CMAKE)
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fl_debug_var(CMAKE_DL_LIBS)
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fl_debug_var(CMAKE_EXE_LINKER_FLAGS)
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fl_debug_var(LDFLAGS)
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fl_debug_var(LIBS)
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fl_debug_var(GLLIBS)
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fl_debug_var(IMAGELIBS)
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fl_debug_var(STATICIMAGELIBS)
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@ -45,9 +44,11 @@ if(WIN32)
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elseif(APPLE AND NOT FLTK_BACKEND_X11)
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list(APPEND FLTK_LDLIBS ${FLTK_COCOA_FRAMEWORKS})
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elseif(FLTK_BACKEND_WAYLAND)
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list(APPEND FLTK_LDLIBS PkgConfig::WLDCURSOR PkgConfig::WLDCLIENT PkgConfig::XKBCOMMON PkgConfig::DBUS)
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foreach(_lib WLDCURSOR WLDCLIENT XKBCOMMON DBUS)
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list(APPEND FLTK_LDLIBS "${${_lib}_LDFLAGS}")
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endforeach()
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if(USE_SYSTEM_LIBDECOR)
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list(APPEND FLTK_LDLIBS PkgConfig::SYSTEM_LIBDECOR)
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list(APPEND FLTK_LDLIBS ${SYSTEM_LIBDECOR_LDFLAGS})
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endif(USE_SYSTEM_LIBDECOR)
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else()
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list(APPEND FLTK_LDLIBS -lm)
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@ -115,6 +116,17 @@ else()
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endif(LIB_zlib)
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endif(FLTK_USE_BUNDLED_ZLIB)
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# remove duplicates from CMake "list" variables for fltk-config
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list(REMOVE_DUPLICATES GLLIBS)
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list(REMOVE_DUPLICATES FLTK_LDLIBS)
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list(REMOVE_DUPLICATES IMAGELIBS)
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list(REMOVE_DUPLICATES STATICIMAGELIBS)
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# convert CMake lists to strings with spaces for fltk-config
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string(REPLACE ";" " " GLLIBS "${GLLIBS}")
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string(REPLACE ";" " " LIBS "${FLTK_LDLIBS}")
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string(REPLACE ";" " " IMAGELIBS "${IMAGELIBS}")
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string(REPLACE ";" " " STATICIMAGELIBS "${STATICIMAGELIBS}")
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@ -136,12 +148,6 @@ endforeach(arg ${FLTK_CFLAGS})
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set(CXXFLAGS "${CFLAGS}")
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foreach(arg ${FLTK_LDLIBS})
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set(LINK_LIBS "${LINK_LIBS} ${arg}")
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endforeach(arg ${FLTK_LDLIBS})
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set(LIBS "${LINK_LIBS}")
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if(${CMAKE_SYSTEM_NAME} STREQUAL "AIX")
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set(SHAREDSUFFIX "_s")
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else()
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@ -154,11 +160,11 @@ if(DEBUG_VARIABLES_CMAKE)
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fl_debug_var(CMAKE_DL_LIBS)
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fl_debug_var(CMAKE_EXE_LINKER_FLAGS)
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fl_debug_var(LDFLAGS)
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fl_debug_var(FLTK_LDLIBS)
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fl_debug_var(LIBS)
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fl_debug_var(GLLIBS)
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fl_debug_var(IMAGELIBS)
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fl_debug_var(STATICIMAGELIBS)
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fl_debug_var(FLTK_LDLIBS)
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fl_debug_var(LIB_jpeg)
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fl_debug_var(LIB_png)
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fl_debug_var(LIB_zlib)
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@ -631,9 +631,12 @@ endif()
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#######################################################################
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# prepare optional libs for shared and static FLTK libraries
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# Prepare optional libs for shared and static FLTK libraries.
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# Note: OPTIONAL_LIBS is a CMake 'list' and may contain CMake targets,
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# i.e. it is only used for CMake stuff: target_link_libraries().
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# FIXME: make this all more consistent (targets rather than libs).
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set(OPTIONAL_LIBS)
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set(OPTIONAL_LIBS) # init
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if(LIB_dl)
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list(APPEND OPTIONAL_LIBS ${LIB_dl})
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@ -670,10 +673,6 @@ if(HAVE_XRENDER)
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list(APPEND OPTIONAL_LIBS ${X11_Xrender_LIB})
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endif(HAVE_XRENDER)
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### if(FLTK_HAVE_CAIRO) # FLTK_OPTION_CAIRO_WINDOW or FLTK_OPTION_CAIRO_EXT or Wayland
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### list(APPEND OPTIONAL_LIBS ${PKG_CAIRO_LIBRARIES})
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### endif()
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if(USE_PANGO)
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### FIXME ### This needs to use the PKG_* variables directly
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list(APPEND OPTIONAL_LIBS ${HAVE_LIB_PANGO} PkgConfig::PANGOCAIRO)
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@ -772,10 +771,6 @@ endif(UNIX AND FLTK_BACKEND_WAYLAND)
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fl_add_library(fltk STATIC "${STATIC_FILES}")
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target_link_libraries(fltk PUBLIC ${OPTIONAL_LIBS})
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### if(FLTK_HAVE_CAIRO OR FLTK_USE_CAIRO)
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### target_link_directories(fltk PUBLIC ${PKG_CAIRO_LIBRARY_DIRS})
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### endif()
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#######################################################################
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if(FLTK_BUILD_FORMS)
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@ -798,10 +793,6 @@ fl_add_library(fltk_images STATIC "${IMGCPPFILES}")
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target_link_libraries(fltk_images PUBLIC fltk::fltk)
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target_link_libraries(fltk_images PRIVATE ${FLTK_IMAGE_LIBRARIES})
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### target_link_libraries(fltk_images PUBLIC ${FLTK_JPEG_LIBRARIES})
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### target_link_libraries(fltk_images PUBLIC ${FLTK_PNG_LIBRARIES})
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### target_link_libraries(fltk_images PUBLIC ${FLTK_IMAGE_LIBRARIES})
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if(FLTK_USE_BUNDLED_JPEG)
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target_include_directories(fltk_images PUBLIC
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$<BUILD_INTERFACE:${FLTK_SOURCE_DIR}/jpeg>
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@ -825,17 +816,11 @@ endif(FLTK_USE_GL)
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# Shared libraries, part 1: everything except Visual Studio (MSVC)
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#######################################################################
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### fl_debug_var(OPTIONAL_LIBS)
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if(FLTK_BUILD_SHARED_LIBS AND NOT MSVC)
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fl_add_library(fltk SHARED "${SHARED_FILES}")
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target_link_libraries(fltk-shared PUBLIC ${OPTIONAL_LIBS})
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### if(FLTK_HAVE_CAIRO OR FLTK_USE_CAIRO)
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### target_link_directories(fltk-shared PUBLIC ${PKG_CAIRO_LIBRARY_DIRS})
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### endif()
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###################################################################
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if(FLTK_BUILD_FORMS)
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@ -845,12 +830,6 @@ if(FLTK_BUILD_SHARED_LIBS AND NOT MSVC)
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###################################################################
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### fl_debug_var(fltk_images)
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### fl_debug_var(FLTK_JPEG_LIBRARIES)
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### fl_debug_var(FLTK_PNG_LIBRARIES)
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### fl_debug_var(FLTK_ZLIB_LIBRARIES)
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### fl_debug_var(FLTK_IMAGE_LIBRARIES)
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fl_add_library(fltk_images SHARED "${IMGCPPFILES}")
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target_link_libraries(fltk_images-shared PUBLIC fltk::fltk-shared)
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@ -859,7 +838,6 @@ if(FLTK_BUILD_SHARED_LIBS AND NOT MSVC)
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target_link_libraries(fltk_images PUBLIC ${FLTK_IMAGE_LIBRARIES})
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if(FLTK_USE_BUNDLED_JPEG)
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## include_directories(${CMAKE_CURRENT_SOURCE_DIR})
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target_include_directories(fltk_images-shared PUBLIC
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$<BUILD_INTERFACE:${FLTK_SOURCE_DIR}/jpeg>
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# $<INSTALL_INTERFACE:include>
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