Backport new 'symbol-lookup' meson option from git master to cairo 1.17.4.
This option is needed to turn linking with libbfd deterministically on or off. @sh0

--- meson.build	2021-12-01 03:56:33.290547341 +0200
+++ meson.build	2021-12-01 03:58:17.955355490 +0200
@@ -659,7 +659,7 @@
 
 # Untested, libiberty.h is in a libiberty subfolder for me
 # FIXME: automagic
-bfd_dep = cc.find_library('bfd', required: false)
+bfd_dep = cc.find_library('bfd', has_headers: ['bfd.h'], required: get_option('symbol-lookup'))
 if bfd_dep.found() and cc.has_function('bfd_openr', dependencies: [bfd_dep])
   if cc.has_header('libiberty.h')
     conf.set('HAVE_BFD', 1)
--- meson_options.txt	2021-12-01 03:56:33.290547341 +0200
+++ meson_options.txt	2021-12-01 03:57:29.498907256 +0200
@@ -30,6 +30,8 @@
 # Misc deps
 option('glib', type : 'feature', value : 'auto')
 option('spectre', type : 'feature', value : 'auto')
+option('symbol-lookup', type: 'feature', value : 'auto',
+       description: 'Symbol lookup in debug utils via binutils/bfd')
 
 # FIXME: implement these to avoid automagic
 #option('egl', type : 'feature', value : 'auto')