[evince/wip/chpe/symbols-visibility: 10/11] backends: Use symbol visibility for exported symbols

[Christian Persch <chpe src gnome org>]

commit 27aec5e654809b56358ec3f6ceb1590e853fad93
Author: Christian Persch <chpe src gnome org>
Date:   Thu Nov 18 23:37:10 2021 +0100

    backends: Use symbol visibility for exported symbols
    
    Instead of using a symbol file, use the visibility attribute to export only
    the public API.

 backend/backend-symbol.map       | 6 ------
 backend/comics/comics-document.h | 6 ++++--
 backend/comics/meson.build       | 3 +--
 backend/djvu/djvu-document.h     | 6 ++++--
 backend/djvu/meson.build         | 3 +--
 backend/dvi/dvi-document.h       | 6 ++++--
 backend/dvi/meson.build          | 3 +--
 backend/meson.build              | 3 ---
 backend/pdf/ev-poppler.h         | 5 +++--
 backend/pdf/meson.build          | 3 +--
 backend/ps/ev-spectre.h          | 4 +++-
 backend/ps/meson.build           | 3 +--
 backend/tiff/meson.build         | 3 +--
 backend/tiff/tiff-document.h     | 7 +++++--
 backend/xps/meson.build          | 3 +--
 backend/xps/xps-document.h       | 4 +++-
 16 files changed, 33 insertions(+), 35 deletions(-)
---
diff --git a/backend/comics/comics-document.h b/backend/comics/comics-document.h
index 76feef051..227e71f31 100644
--- a/backend/comics/comics-document.h
+++ b/backend/comics/comics-document.h
@@ -19,6 +19,7 @@
 #ifndef __COMICS_DOCUMENT_H__
 #define __COMICS_DOCUMENT_H__
 
+#include "ev-macros.h"
 #include "ev-document.h"
 
 G_BEGIN_DECLS
@@ -31,8 +32,9 @@ typedef struct _ComicsDocument ComicsDocument;
 
 GType                 comics_document_get_type (void) G_GNUC_CONST;
 
-G_MODULE_EXPORT GType register_evince_backend  (GTypeModule *module);
-     
+EV_PUBLIC
+GType                 register_evince_backend  (GTypeModule *module);
+
 G_END_DECLS
 
 #endif /* __COMICS_DOCUMENT_H__ */
diff --git a/backend/comics/meson.build b/backend/comics/meson.build
index f1a80ca38..1e740194b 100644
--- a/backend/comics/meson.build
+++ b/backend/comics/meson.build
@@ -16,8 +16,7 @@ shared_module(
   include_directories: incs,
   dependencies: deps,
   c_args: backends_cflags,
-  link_args: backends_ldflags,
-  link_depends: backends_symbol_map,
+  gnu_symbol_visibility: 'hidden',
   install: true,
   install_dir: ev_backendsdir,
   name_suffix: name_suffix,
diff --git a/backend/djvu/djvu-document.h b/backend/djvu/djvu-document.h
index bcb916af5..6ba3a1897 100644
--- a/backend/djvu/djvu-document.h
+++ b/backend/djvu/djvu-document.h
@@ -19,6 +19,7 @@
 #ifndef __DJVU_DOCUMENT_H__
 #define __DJVU_DOCUMENT_H__
 
+#include "ev-macros.h"
 #include "ev-document.h"
 
 G_BEGIN_DECLS
@@ -31,8 +32,9 @@ typedef struct _DjvuDocument DjvuDocument;
 
 GType                 djvu_document_get_type  (void) G_GNUC_CONST;
 
-G_MODULE_EXPORT GType register_evince_backend (GTypeModule *module);
-     
+EV_PUBLIC
+GType                 register_evince_backend (GTypeModule *module);
+
 G_END_DECLS
 
 #endif /* __DJVU_DOCUMENT_H__ */
diff --git a/backend/djvu/meson.build b/backend/djvu/meson.build
index b5328974d..1a687acf6 100644
--- a/backend/djvu/meson.build
+++ b/backend/djvu/meson.build
@@ -10,8 +10,7 @@ shared_module(
   include_directories: backends_incs,
   dependencies: backends_deps + [ddjvuapi_dep],
   c_args: backends_cflags + ['-DGNOMEICONDIR="@0@"'.format(join_paths(ev_datadir, 'pixmaps'))],
-  link_args: backends_ldflags,
-  link_depends: backends_symbol_map,
+  gnu_symbol_visibility: 'hidden',
   install: true,
   install_dir: ev_backendsdir,
   name_suffix: name_suffix,
diff --git a/backend/dvi/dvi-document.h b/backend/dvi/dvi-document.h
index 845301b62..4afd288b0 100644
--- a/backend/dvi/dvi-document.h
+++ b/backend/dvi/dvi-document.h
@@ -19,6 +19,7 @@
 #ifndef __DVI_DOCUMENT_H__
 #define __DVI_DOCUMENT_H__
 
+#include "ev-macros.h"
 #include "ev-document.h"
 
 G_BEGIN_DECLS
@@ -31,8 +32,9 @@ typedef struct _DviDocument DviDocument;
 
 GType                 dvi_document_get_type   (void) G_GNUC_CONST;
 
-G_MODULE_EXPORT GType register_evince_backend (GTypeModule *module);
-     
+EV_PUBLIC
+GType                 register_evince_backend (GTypeModule *module);
+
 G_END_DECLS
 
 #endif /* __DVI_DOCUMENT_H__ */
diff --git a/backend/dvi/meson.build b/backend/dvi/meson.build
index 26aba04f5..3809b6271 100644
--- a/backend/dvi/meson.build
+++ b/backend/dvi/meson.build
@@ -21,8 +21,7 @@ shared_module(
   include_directories: backends_incs,
   dependencies: deps,
   c_args: backends_cflags,
-  link_args: backends_ldflags,
-  link_depends: backends_symbol_map,
+  gnu_symbol_visibility: 'hidden',
   install: true,
   install_dir: ev_backendsdir,
   name_suffix: name_suffix,
diff --git a/backend/meson.build b/backend/meson.build
index 14629f2f0..e44c1d6d7 100644
--- a/backend/meson.build
+++ b/backend/meson.build
@@ -11,9 +11,6 @@ backends_cflags = [
   '-DGTK_MULTIHEAD_SAFE',
 ]
 
-backends_symbol_map = join_paths(meson.current_source_dir(), 'backend-symbol.map')
-backends_ldflags = cc.get_supported_link_arguments('-Wl,--version-script,' + backends_symbol_map)
-
 foreach backend, backend_mime_types: backends
   backend_name = backend + 'document'
 
diff --git a/backend/pdf/ev-poppler.h b/backend/pdf/ev-poppler.h
index f37f22688..45d1a12db 100644
--- a/backend/pdf/ev-poppler.h
+++ b/backend/pdf/ev-poppler.h
@@ -19,6 +19,7 @@
 #ifndef __PDF_DOCUMENT_H__
 #define __PDF_DOCUMENT_H__
 
+#include "ev-macros.h"
 #include "ev-document.h"
 
 G_BEGIN_DECLS
@@ -32,8 +33,8 @@ typedef struct _PdfDocumentClass PdfDocumentClass;
 
 GType                 pdf_document_get_type   (void) G_GNUC_CONST;
 
-G_MODULE_EXPORT GType register_evince_backend (GTypeModule *module);
-
+EV_PUBLIC
+GType                 register_evince_backend (GTypeModule *module);
 
 G_END_DECLS
 
diff --git a/backend/pdf/meson.build b/backend/pdf/meson.build
index 320203195..94c087db4 100644
--- a/backend/pdf/meson.build
+++ b/backend/pdf/meson.build
@@ -11,8 +11,7 @@ shared_module(
   include_directories: backends_incs,
   dependencies: deps,
   c_args: backends_cflags,
-  link_args: backends_ldflags,
-  link_depends: backends_symbol_map,
+  gnu_symbol_visibility: 'hidden',
   install: true,
   install_dir: ev_backendsdir,
   name_suffix: name_suffix,
diff --git a/backend/ps/ev-spectre.h b/backend/ps/ev-spectre.h
index 42bf969dc..9ece58015 100644
--- a/backend/ps/ev-spectre.h
+++ b/backend/ps/ev-spectre.h
@@ -26,6 +26,7 @@
 
 #include <glib-object.h>
 
+#include "ev-macros.h"
 #include "ev-document.h"
 
 G_BEGIN_DECLS
@@ -41,7 +42,8 @@ typedef struct _PSDocumentClass PSDocumentClass;
 
 GType                 ps_document_get_type    (void) G_GNUC_CONST;
 
-G_MODULE_EXPORT GType register_evince_backend (GTypeModule *module);
+EV_PUBLIC
+GType                 register_evince_backend (GTypeModule *module);
 
 G_END_DECLS
 
diff --git a/backend/ps/meson.build b/backend/ps/meson.build
index 109cb5223..5dfdbee78 100644
--- a/backend/ps/meson.build
+++ b/backend/ps/meson.build
@@ -4,8 +4,7 @@ shared_module(
   include_directories: backends_incs,
   dependencies: backends_deps + [libspectre_dep],
   c_args: backends_cflags,
-  link_args: backends_ldflags,
-  link_depends: backends_symbol_map,
+  gnu_symbol_visibility: 'hidden',
   install: true,
   install_dir: ev_backendsdir,
   name_suffix: name_suffix,
diff --git a/backend/tiff/meson.build b/backend/tiff/meson.build
index 91b2b0522..b531b345e 100644
--- a/backend/tiff/meson.build
+++ b/backend/tiff/meson.build
@@ -9,8 +9,7 @@ shared_module(
   include_directories: backends_incs,
   dependencies: backends_deps + [libtiff_dep, m_dep],
   c_args: backends_cflags,
-  link_args: backends_ldflags,
-  link_depends: backends_symbol_map,
+  gnu_symbol_visibility: 'hidden',
   install: true,
   install_dir: ev_backendsdir,
   name_suffix: name_suffix,
diff --git a/backend/tiff/tiff-document.h b/backend/tiff/tiff-document.h
index a188f1430..6e9cc0fc1 100644
--- a/backend/tiff/tiff-document.h
+++ b/backend/tiff/tiff-document.h
@@ -20,6 +20,7 @@
 #ifndef __TIFF_DOCUMENT_H__
 #define __TIFF_DOCUMENT_H__
 
+#include "ev-macros.h"
 #include "ev-document.h"
 
 G_BEGIN_DECLS
@@ -31,8 +32,10 @@ G_BEGIN_DECLS
 typedef struct _TiffDocument TiffDocument;
 
 GType                 tiff_document_get_type  (void) G_GNUC_CONST;
-G_MODULE_EXPORT GType register_evince_backend (GTypeModule *module);
-     
+
+EV_PUBLIC
+GType                 register_evince_backend (GTypeModule *module);
+
 G_END_DECLS
 
 #endif /* __TIFF_DOCUMENT_H__ */
diff --git a/backend/xps/meson.build b/backend/xps/meson.build
index 361ac7be0..0e1a6c0be 100644
--- a/backend/xps/meson.build
+++ b/backend/xps/meson.build
@@ -4,8 +4,7 @@ shared_module(
   include_directories: backends_incs,
   dependencies: backends_deps + [libgxps_dep],
   c_args: backends_cflags,
-  link_args: backends_ldflags,
-  link_depends: backends_symbol_map,
+  gnu_symbol_visibility: 'hidden',
   install: true,
   install_dir: ev_backendsdir,
   name_suffix: name_suffix,
diff --git a/backend/xps/xps-document.h b/backend/xps/xps-document.h
index f20fbf32f..7cafa72c6 100644
--- a/backend/xps/xps-document.h
+++ b/backend/xps/xps-document.h
@@ -22,6 +22,7 @@
 
 #include <glib-object.h>
 
+#include "ev-macros.h"
 #include "ev-document.h"
 
 G_BEGIN_DECLS
@@ -37,7 +38,8 @@ typedef struct _XPSDocumentClass XPSDocumentClass;
 
 GType                 xps_document_get_type   (void) G_GNUC_CONST;
 
-G_MODULE_EXPORT GType register_evince_backend (GTypeModule *module);
+EV_PUBLIC
+GType                 register_evince_backend (GTypeModule *module);
 
 G_END_DECLS