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scanner: Guard interface declarations

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This allows to include client and server headers in the same file
fixing warnings like

In file included from ../subprojects/wlroots/include/wlr/types/wlr_layer_shell_v1.h:16,
                 from ../src/desktop.h:16,
                 from ../src/server.h:13,
                 from ../tests/testlib.c:8:
tests/59830eb@@footest@sta/wlr-layer-shell-unstable-v1-protocol.h:80:34: warning: redundant redeclaration of ‘zwlr_layer_shell_v1_interface’ [-Wredundant-decls]
   80 | extern const struct wl_interface zwlr_layer_shell_v1_interface;
      |                                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../tests/testlib.h:8,
                 from ../tests/testlib.c:7:
tests/59830eb@@footest@sta/wlr-layer-shell-unstable-v1-client-protocol.h:77:34: note: previous declaration of ‘zwlr_layer_shell_v1_interface’ was here
   77 | extern const struct wl_interface zwlr_layer_shell_v1_interface;
      |                                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../subprojects/wlroots/include/wlr/types/wlr_layer_shell_v1.h:16,
                 from ../src/desktop.h:16,
                 from ../src/server.h:13,
                 from ../tests/testlib.c:8:
tests/59830eb@@footest@sta/wlr-layer-shell-unstable-v1-protocol.h:106:34: warning: redundant redeclaration of ‘zwlr_layer_surface_v1_interface’ [-Wredundant-decls]
  106 | extern const struct wl_interface zwlr_layer_surface_v1_interface;
      |                                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../tests/testlib.h:8,
                 from ../tests/testlib.c:7:
tests/59830eb@@footest@sta/wlr-layer-shell-unstable-v1-client-protocol.h:103:34: note: previous declaration of ‘zwlr_layer_surface_v1_interface’ was here
  103 | extern const struct wl_interface zwlr_layer_surface_v1_interface;

Signed-off-by: Guido Günther <agx@sigxcpu.org>
Closes: #158
This commit is contained in:
Guido Günther 2020-04-21 12:47:56 +02:00
parent 7d3d2ae310
commit cc8b6aa3d9
7 changed files with 147 additions and 0 deletions
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3
tests/data/small-server-core.h
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@ -49,6 +49,8 @@ struct another_intf;
struct intf_A;
struct intf_not_here;
#ifndef INTF_A_INTERFACE
#define INTF_A_INTERFACE
/**
* @page page_iface_intf_A intf_A
* @section page_iface_intf_A_desc Description
@ -63,6 +65,7 @@ struct intf_not_here;
* A useless example trying to tickle the scanner.
*/
extern const struct wl_interface intf_A_interface;
#endif
#ifndef INTF_A_FOO_ENUM
#define INTF_A_FOO_ENUM