[network-manager-applet/lr/meson-fixes: 5/6] meson: check for -Wl, --gc-sections linker flag properly

[Lubomir Rintel <lkundrak src gnome org>]

commit 306c147b3e6899de5f86a49ef2bccf29c7747856
Author: Lubomir Rintel <lkundrak v3 sk>
Date:   Fri Feb 15 17:37:35 2019 +0100

    meson: check for -Wl,--gc-sections linker flag properly
    
      WARNING: -Wl,--gc-sections looks like a linker argument, but
      has_argument and other similar methods only support checking compiler
      arguments. Using them to check linker arguments are never supported, and
      results are likely to be wrong regardless of the compiler you are using.
      has_link_argument or other similar method can be used instead.
    
    Requires newer meson. Sigh...

 meson.build | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)
---
diff --git a/meson.build b/meson.build
index 63c26877..6ce657c3 100644
--- a/meson.build
+++ b/meson.build
@@ -6,7 +6,7 @@ project(
     'buildtype=debugoptimized',
     'c_std=gnu99'
   ],
-  meson_version: '>= 0.43.0'
+  meson_version: '>= 0.46.0'
 )
 
 nma_name = 'nm-applet'
@@ -70,9 +70,8 @@ if enable_ld_gc
 
   test_ldflags = ['-Wl,--gc-sections']
 
-  foreach cflag: test_cflags + test_ldflags
-    assert(cc.has_argument(cflag), 'Unused symbol eviction requested but not supported. Use -Dld_gc=false to 
build without it.')
-  endforeach
+  assert(cc.has_multi_arguments(test_cflags), 'Unused symbol eviction requested but not supported. Use 
-Dld_gc=false to build without it.')
+  assert(cc.has_multi_link_arguments(test_ldflags), 'Unused symbol eviction requested but not supported. Use 
-Dld_gc=false to build without it.')
 
   common_flags += test_cflags
   common_ldflags += test_ldflags