Add gnu_symbol_visibility: 'hidden' option to .so compilation

Author: touilleMan

src/godot/hazmat/meson.build

@@ -73,6 +73,7 @@ endif
 shared_library(
     'extension_class',
     c_extension_class,
+    gnu_symbol_visibility: 'hidden',  # Used by both clang & gcc (see https://gcc.gnu.org/wiki/Visibility)
     dependencies : [dep_godot, dep_python, dep_pythonscript],
     install_rpath: extension_class_rpath,  # To find libpython
     name_prefix: python_native_module_name_prefix,

src/godot/meson.build

@@ -128,6 +128,7 @@ shared_library(
     'builtins',
     cbuiltins,
     c_args: builtins_c_args,
+    gnu_symbol_visibility: 'hidden',  # Used by both clang & gcc (see https://gcc.gnu.org/wiki/Visibility)
     dependencies : [dep_godot, dep_python, dep_pythonscript],
     install_rpath: builtins_rpath,  # To find libpython
     name_prefix: python_native_module_name_prefix,
@@ -189,6 +190,7 @@ shared_library(
     'classes',
     cclasses,
     c_args: classes_c_args,
+    gnu_symbol_visibility: 'hidden',  # Used by both clang & gcc (see https://gcc.gnu.org/wiki/Visibility)
     dependencies : [dep_godot, dep_python, dep_pythonscript],
     install_rpath: classes_rpath,  # To find libpython
     name_prefix: python_native_module_name_prefix,

src/meson.build

@@ -286,6 +286,7 @@ lib_pythonscript = shared_library(
     'pythonscript',
     ['pythonscript.c', c_pythonscript_gdextension_ptrs, c_pythonscript],
     c_args: lib__pythonscript_c_args,
+    gnu_symbol_visibility: 'hidden',  # Used by both clang & gcc (see https://gcc.gnu.org/wiki/Visibility)
     dependencies: [dep_godot, dep_python],
     install_rpath: lib_pythonscript_rpath,  # To find libpython
     install: true,