Public bug reported:
I'm trying to build simple-scan according to the README file (on Arch).
With colord, packagekit, and webp installed, Meson is building invalid
args for the main build step, which prevents the project from building.
The build declaration (meson.build) generates a Python list of
vala_args. The list of args looks OK getting passed into executable().
However, the auto-generated build.ninja is missing the required
-D(efine) flags. As a result, it treats some of defines as filenames,
and crashes.
Vala/Meson/Ninja are new to me, so I'm not sure if the problem is with
the build file, or the Meson generator, or what.
# ./src/meson.build
# If all three packages are installed, they're built into the Python list.
Somehow, the -D flags disappear during build generation
vala_args = [ '--pkg=posix', '--vapidir=' + meson.current_source_dir () ]
dependencies = [ glib_dep, gtk_dep, zlib_dep, cairo_dep, gdk_pixbuf_dep,
gusb_dep, sane_dep ]
if colord_dep.found ()
vala_args += [ '-D', 'HAVE_COLORD' ]
dependencies += colord_dep
endif
if packagekit_dep.found ()
vala_args += [ '-D', 'HAVE_PACKAGEKIT' ]
dependencies += packagekit_dep
endif
if webp_dep.found () and (not colord_dep.found () or webpmux_dep.found ()) #
Webpmux only required if colord
vala_args += [ '-D', 'HAVE_WEBP' ]
dependencies += [ webp_dep, webpmux_dep ]
endif
simple_scan = executable ('simple-scan',
[ 'config.vapi',
'app-window.vala',
'authorize-dialog.vala',
'book.vala',
'book-view.vala',
'page.vala',
'page-view.vala',
'preferences-dialog.vala',
'simple-scan.vala',
'scanner.vala',
'screensaver.vala',
'autosave-manager.vala' ] + resources,
dependencies: dependencies,
vala_args: vala_args,
c_args: [ '-DVERSION="@0@"'.format
(meson.project_version ()),
'-DGETTEXT_PACKAGE="simple-scan"',
'-DLOCALE_DIR="@0@"'.format (localedir),
'-DICON_DIR="@0@"'.format (icondir),
'-DI_KNOW_THE_PACKAGEKIT_GLIB2_API_IS_SUBJECT_TO_CHANGE' ],
link_args: [ '-lm' ],
install: true )
# ./build/build.ninja
# Snippet of the bad build step. Note the -D flag is missing (at the end)
build src/simple-scan@exe/app-window.c src/simple-scan@exe/authorize-dialog.c
src/simple-scan@exe/book.c src/simple-scan@exe/book-view.c
src/simple-scan@exe/page.c src/simple-scan@exe/page-view.c
src/simple-scan@exe/preferences-dialog.c src/simple-scan@exe/simple-scan.c
src/simple-scan@exe/scanner.c src/simple-scan@exe/screensaver.c
src/simple-scan@exe/autosave-manager.c: vala_COMPILER ../src/config.vapi
../src/app-window.vala ../src/authorize-dialog.vala ../src/book.vala
../src/book-view.vala ../src/page.vala ../src/page-view.vala
../src/preferences-dialog.vala ../src/simple-scan.vala ../src/scanner.vala
../src/screensaver.vala ../src/autosave-manager.vala
ARGS = -C --debug --pkg libwebpmux --pkg libwebp --pkg packagekit-glib2 --pkg
colord --pkg sane-backends --pkg gusb --pkg gdk-pixbuf-2.0 --pkg cairo --pkg
zlib --pkg gtk+-3.0 --target-glib '$ 2.38' --pkg glib-2.0 -d
src/simple-scan@exe --gresources=../src/simple-scan.gresource.xml --pkg=posix
--vapidir=/home/dan/Projects/simple-scan/src HAVE_COLORD HAVE_PACKAGEKIT -D
HAVE_WEBP
** Affects: simple-scan (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1698256
Title:
Invalid, Meson-generated, valac arguments break the build
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