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authorMarc-André Lureau <marcandre.lureau@redhat.com>2010-12-29 14:23:59 +0100
committerHans de Goede <hdegoede@redhat.com>2011-02-11 14:46:35 +0100
commit1043a5df4d3f3a31124d1074045eee3757e14ee7 (patch)
tree8cf6d7a0a1a662b21d479c276550bff74e47f536
parent097a1779681fc59d131c325c1f49584eb8c0014c (diff)
mingw32: specify packing alignment to 1 byte, to override -mms-bitfield
Ex: G_STRUCT_OFFSET(SpiceLinkReply, num_channel_caps) is 172 bytes when compiled with -mms-bitfield, and 170 bytes without. GLib/Gtk are compiled with -mms-bitfield, and it is necessary to compile with the same option for compatibility. The pack pragma for MINGW32 corrects the structure alignement. We could use the pack pragma for GNUC unconditionally, that could help to ensure struct binary compatibility between different compiled flavours.
-rw-r--r--spice/end-packed.h4
-rw-r--r--spice/start-packed.h4
2 files changed, 5 insertions, 3 deletions
diff --git a/spice/end-packed.h b/spice/end-packed.h
index e191737..1acea18 100644
--- a/spice/end-packed.h
+++ b/spice/end-packed.h
@@ -33,8 +33,6 @@
#undef SPICE_ATTR_PACKED
-#ifndef __GNUC__
-
+#if defined(__MINGW32__) || !defined(__GNUC__)
#pragma pack(pop)
-
#endif
diff --git a/spice/start-packed.h b/spice/start-packed.h
index 78ec7c7..ab3fa98 100644
--- a/spice/start-packed.h
+++ b/spice/start-packed.h
@@ -49,6 +49,10 @@
#define SPICE_ATTR_PACKED __attribute__ ((__packed__))
+#ifdef __MINGW32__
+#pragma pack(push,1)
+#endif
+
#else
#pragma pack(push)