From: Otto Moerbeek <otto@drijf.net>
Date: Wed, 12 Mar 2025 09:54:17 +0000 (+0100)
Subject: rec: meson build: export ffi symbols so they become available to Lua
X-Git-Tag: dnsdist-2.0.0-alpha1~17^2
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=refs%2Fpull%2F15292%2Fhead;p=thirdparty%2Fpdns.git

rec: meson build: export ffi symbols so they become available to Lua

Do that specifically (and unconditionally) for the ffi functions only,
we do not need to export everything like the autotools do with -rdynamic.
---

diff --git a/pdns/recursordist/meson.build b/pdns/recursordist/meson.build
index 5d8a970d7b..f134041ff1 100644
--- a/pdns/recursordist/meson.build
+++ b/pdns/recursordist/meson.build
@@ -18,7 +18,14 @@ meson.add_dist_script('meson-dist-script.sh')
 meson.add_dist_script('version.sh', 'set-dist', meson.project_version())
 
 add_project_arguments('-DRECURSOR', language: 'cpp')
-
+add_project_arguments(
+  '-Wshadow',
+  '-Wmissing-declarations',
+  '-Wredundant-decls',
+  '-Wno-ignored-attributes',
+  '-fvisibility=hidden',
+  language: ['c', 'cpp'],
+)
 
 product_source_dir = meson.current_source_dir()
 product_build_dir = meson.current_build_dir()
@@ -407,6 +414,10 @@ librec_common = declare_dependency(
 tools = {
   'pdns_recursor': {
     'main': src_dir / 'rec-main.cc',
+    'link-args': [
+	'-Wl,--export-dynamic-symbol=pdns_ffi_*',
+	'-Wl,--export-dynamic-symbol=pdns_postresolve_ffi_*',
+    ],
     'files-extra': [
       src_dir / 'capabilities.cc',
       src_dir / 'channel.cc',
@@ -542,6 +553,7 @@ foreach tool, info: tools
   main = files(info['main'])
 
   export_dynamic = 'export-dynamic' in info ? info['export-dynamic'] : false
+  link_args = 'link-args' in info ? info['link-args'] : []
   files_extra = 'files-extra' in info ? info['files-extra'] : []
   deps_extra = 'deps-extra' in info ? info['deps-extra'] : []
   install = 'install' in info ? info['install'] : false
@@ -555,6 +567,7 @@ foreach tool, info: tools
       config_h,
       files_extra,
       export_dynamic: export_dynamic,
+      link_args: link_args,
       dependencies: [
         librec_common,
         deps_extra,