support byte-by-byte reproducible build

build path ends in the final binary package causing the
build not to be reproducible byte-by-byte.

Reference:
https://bugs.debian.org/899358

Signed-off-by: Héctor Orón Martínez <zumbi@debian.org>

compositor/meson.build

@@ -160,8 +160,6 @@ endif
 weston_ini_config = configuration_data()
 weston_ini_config.set('bindir', dir_bin)
 weston_ini_config.set('libexecdir', dir_libexec)
-weston_ini_config.set('abs_top_srcdir', meson.source_root())
-weston_ini_config.set('abs_top_builddir', meson.build_root())
 configure_file(
 	input: '../weston.ini.in',
 	output: 'weston.ini',

ivi-shell/meson.build

@@ -40,8 +40,6 @@ if get_option('shell-ivi')
 	ivi_test_config = configuration_data()
 	ivi_test_config.set('bindir', dir_bin)
 	ivi_test_config.set('libexecdir', dir_libexec)
-	ivi_test_config.set('abs_top_srcdir', meson.current_source_dir())
-	ivi_test_config.set('abs_top_builddir', meson.current_build_dir())
 	ivi_test_config.set('plugin_prefix', meson.current_build_dir())
 	ivi_test_config.set('westondatadir', join_paths(dir_data, 'weston'))
 	ivi_test_ini = configure_file(

weston.ini.in

@@ -38,7 +38,7 @@ path=/usr/bin/google-chrome
 
 [launcher]
 icon=/usr/share/icons/gnome/24x24/apps/arts.png
-path=@abs_top_builddir@/weston-flower
+path=@bindir@/weston-flower
 
 [input-method]
 path=@libexecdir@/weston-keyboard