build: Use weak bindings in gvdb to fix linking with LLD

Since tests/dconf-mock-gvdb.c has functions conflicting with the real
gvdb and it is intended for the former to override the latter in tests,
we have to make functions in gvdb library have weak bindings instead of
the default strong bindings to avoid duplicate symbol errors.

Fixes https://gitlab.gnome.org/GNOME/dconf/issues/47
This commit is contained in:
Ting-Wei Lan 2018-10-24 21:46:16 +08:00
parent 2d462bf661
commit e1bcd7529e

View File

@ -22,40 +22,55 @@
#include <glib.h>
/* We cannot enable the weak attribute unconditionally here because both
* gvdb/gvdb-reader.c and tests/dconf-mock-gvdb.c include this file. The
* intention of using weak symbols here is to allow the latter to override
* functions defined in the former, so functions in tests/dconf-mock-gvdb.c
* must have strong bindings. */
#ifdef GVDB_USE_WEAK_SYMBOLS
# ifdef __GNUC__
# define GVDB_GNUC_WEAK __attribute__((weak))
# else
# define GVDB_GNUC_WEAK
# endif
#else
# define GVDB_GNUC_WEAK
#endif
typedef struct _GvdbTable GvdbTable;
G_BEGIN_DECLS
G_GNUC_INTERNAL
G_GNUC_INTERNAL GVDB_GNUC_WEAK
GvdbTable * gvdb_table_new_from_bytes (GBytes *bytes,
gboolean trusted,
GError **error);
G_GNUC_INTERNAL
G_GNUC_INTERNAL GVDB_GNUC_WEAK
GvdbTable * gvdb_table_new (const gchar *filename,
gboolean trusted,
GError **error);
G_GNUC_INTERNAL
G_GNUC_INTERNAL GVDB_GNUC_WEAK
void gvdb_table_free (GvdbTable *table);
G_GNUC_INTERNAL
G_GNUC_INTERNAL GVDB_GNUC_WEAK
gchar ** gvdb_table_get_names (GvdbTable *table,
gsize *length);
G_GNUC_INTERNAL
G_GNUC_INTERNAL GVDB_GNUC_WEAK
gchar ** gvdb_table_list (GvdbTable *table,
const gchar *key);
G_GNUC_INTERNAL
G_GNUC_INTERNAL GVDB_GNUC_WEAK
GvdbTable * gvdb_table_get_table (GvdbTable *table,
const gchar *key);
G_GNUC_INTERNAL
G_GNUC_INTERNAL GVDB_GNUC_WEAK
GVariant * gvdb_table_get_raw_value (GvdbTable *table,
const gchar *key);
G_GNUC_INTERNAL
G_GNUC_INTERNAL GVDB_GNUC_WEAK
GVariant * gvdb_table_get_value (GvdbTable *table,
const gchar *key);
G_GNUC_INTERNAL
G_GNUC_INTERNAL GVDB_GNUC_WEAK
gboolean gvdb_table_has_value (GvdbTable *table,
const gchar *key);
G_GNUC_INTERNAL
G_GNUC_INTERNAL GVDB_GNUC_WEAK
gboolean gvdb_table_is_valid (GvdbTable *table);
G_END_DECLS