latest 1.4.x current: weird new build error on linux
Greg Ercolano
Getting this with a git pull and new
default build/cmake:
..
[ 38%] Building C object
src/CMakeFiles/fltk.dir/gtk-shell-protocol.c.o
[ 38%] Building C object
src/CMakeFiles/fltk.dir/text-input-protocol.c.o
In file included from
/usr/local/src/fltk-1.4.x.git/libdecor/build/fl_libdecor-plugins.c:62:
/usr/local/src/fltk-1.4.x.git/libdecor/build/../src/plugins/gtk/libdecor-gtk.c:
In function 'handle_titlebar_gesture':
/usr/local/src/fltk-1.4.x.git/libdecor/build/../src/plugins/gtk/libdecor-gtk.c:2250:3:
error: a label can only be part of a statement and a
declaration is not a statement
2250 | const int title_height =
gtk_widget_get_allocated_height(frame_gtk->header);
| ^~~~~
/usr/local/src/fltk-1.4.x.git/libdecor/build/../src/plugins/gtk/libdecor-gtk.c:
In function 'pointer_button':
/usr/local/src/fltk-1.4.x.git/libdecor/build/../src/plugins/gtk/libdecor-gtk.c:2411:2:
error: label at end of compound statement
2411 | default:
| ^~~~~~~
make[2]: *** [src/CMakeFiles/fltk.dir/build.make:2565:
src/CMakeFiles/fltk.dir/__/libdecor/build/fl_libdecor-plugins.c.o]
Error 1
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [CMakeFiles/Makefile2:578:
src/CMakeFiles/fltk.dir/all] Error 2
make: *** [Makefile:130: all] Error 2
Greg Ercolano
Strange that all the commit's builds on github don't show
these errors.
Must be something about my system?
FWIW I'm on Ubuntu 20.04, g++ version: 9.4.0, and the output
of cmake below,
seems like there's a cmake warning which is probably
relevant.
I can supply more info if needed.
Tue 03/12/24 13:03:55 /usr/local/src/fltk-1.4.x.git/build2
[erco@harris] 363 : cmake ..
-- Warning: system libdecor doesn't satisfy version >= 0.2.0,
-- using bundled libdecor library instead.
-- Configuration Summary for FLTK 1.4.0 generated by CMake 3.16.3 --
-- The following OPTIONAL packages have been found:
* Doxygen
* LATEX
* ZLIB
* PNG
* JPEG
-- Static libraries will be built in /usr/local/src/fltk-1.4.x.git/build2/lib
-- Shared libraries will not be built (set FLTK_BUILD_SHARED_LIBS=ON to build)
-- The forms library will be built in /usr/local/src/fltk-1.4.x.git/build2/lib
-- The OpenGL library will be built in /usr/local/src/fltk-1.4.x.git/build2/lib
-- fluid will be built in /usr/local/src/fltk-1.4.x.git/build2/bin/fluid
-- fltk-options will be built in /usr/local/src/fltk-1.4.x.git/build2/bin/fltk-options
-- Test programs will be built in /usr/local/src/fltk-1.4.x.git/build2/bin/test
-- Example programs will not be built (set FLTK_BUILD_EXAMPLES=ON to build)
--
-- Build configuration : <unspecified>
--
-- Image Libraries : JPEG = System
-- : PNG = System
-- : ZLIB = System
-- Use Wayland : Yes (if available at run-time)
-- Use system libdecor : No
-- All drawing uses Cairo : Yes
-- Use Pango : Yes
-- Fl_Cairo_Window support : No
-- Use std:: : No
-- End of Configuration Summary --
-- Configuring done
-- Generating done
-- Build files have been written to: /usr/local/src/fltk-1.4.x.git/build2
Tue 03/12/24 13:04:00 /usr/local/src/fltk-1.4.x.git/build2
[erco@harris] 364 : make -j 4
Albrecht Schlosser
On 3/12/24 13:04, Greg Ercolano wrote:
Getting this with a git pull and new default build/cmake:
..
[ 38%] Building C object src/CMakeFiles/fltk.dir/gtk-shell-protocol.c.o
[ 38%] Building C object src/CMakeFiles/fltk.dir/text-input-protocol.c.o
In file included from /usr/local/src/fltk-1.4.x.git/libdecor/build/fl_libdecor-plugins.c:62:
/usr/local/src/fltk-1.4.x.git/libdecor/build/../src/plugins/gtk/libdecor-gtk.c: In function 'handle_titlebar_gesture':
/usr/local/src/fltk-1.4.x.git/libdecor/build/../src/plugins/gtk/libdecor-gtk.c:2250:3: error: a label can only be part of a statement and a declaration is not a statement
2250 | const int title_height = gtk_widget_get_allocated_height(frame_gtk->header);
| ^~~~~
/usr/local/src/fltk-1.4.x.git/libdecor/build/../src/plugins/gtk/libdecor-gtk.c: In function 'pointer_button':
/usr/local/src/fltk-1.4.x.git/libdecor/build/../src/plugins/gtk/libdecor-gtk.c:2411:2: error: label at end of compound statement
2411 | default:
| ^~~~~~~
make[2]: *** [src/CMakeFiles/fltk.dir/build.make:2565: src/CMakeFiles/fltk.dir/__/libdecor/build/fl_libdecor-plugins.c.o] Error 1
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [CMakeFiles/Makefile2:578: src/CMakeFiles/fltk.dir/all] Error 2
make: *** [Makefile:130: all] Error 2
Strange that all the commit's builds on github don't show these errors.
Must be something about my system?
FWIW I'm on Ubuntu 20.04, g++ version: 9.4.0, and the output of cmake below,
seems like there's a cmake warning which is probably relevant.
I can supply more info if needed.
This has obviously something to do with the XML files that are provided by the system for Wayland support. These files are "compiled" to header files that are used when building libdecor.
This is something Manolo will certainly care about.
For now you could disable building Wayland (use -D FLTK_BACKEND_WAYLAND:BOOL=OFF) as a workaround to be able to build FLTK.
Note: I see compiler warnings but I don't see the error you and Chris reported on my newer Debian system.
Greg Ercolano
On 3/12/24 13:33, 'Albrecht Schlosser' via fltk.coredev wrote:
For now you could disable building Wayland (use -D FLTK_BACKEND_WAYLAND:BOOL=OFF) as a workaround to be able to build FLTK.
