[gnome-bluetooth] build: Use the full path to the linker script

[Bastien Nocera <hadess src gnome org>]

commit 18a6bc1bfd6c7a1dff117b3b2e10f2ea257b3043
Author: Iñigo Martínez <inigomartinez gmail com>
Date:   Tue Nov 14 16:20:59 2017 +0100

    build: Use the full path to the linker script
    
    The symbol map represents the name of the linker script file.
    However, it's more useful if it holds the full paths, because it
    could be referenced from any other meson build file.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=790332

 lib/meson.build |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)
---
diff --git a/lib/meson.build b/lib/meson.build
index c2cc52b..b3669d1 100644
--- a/lib/meson.build
+++ b/lib/meson.build
@@ -82,13 +82,13 @@ cflags = [
   '-DG_LOG_DOMAIN="Bluetooth"'
 ]
 
-symbol_map = meson.project_name() + '.map'
+symbol_map = join_paths(meson.current_source_dir(), meson.project_name() + '.map')
 
-ldflag = '-Wl,--version-script,@0@/@1@'.format(meson.current_source_dir(), symbol_map)
+test_ldflag = '-Wl,--version-script,' + symbol_map
 ldflags = []
 
-if host_machine.system().contains('linux') and cc.has_argument(ldflag)
-  ldflags += ldflag
+if cc.has_argument(test_ldflag)
+  ldflags += test_ldflag
 endif
 
 libgnome_bluetooth = shared_library(