Code must only ever include glib.h indirectly via the glib-compat.h header file, because we will need some macros set before glib.h is pulled in. Adding extra includes of glib.h will (soon) cause compile failures such as:
In file included from /home/berrange/src/virt/qemu/include/qemu/osdep.h:107, from /home/berrange/src/virt/qemu/include/qemu/iova-tree.h:26, from util/iova-tree.c:13: /home/berrange/src/virt/qemu/include/glib-compat.h:22: error: "GLIB_VERSION_MIN_REQUIRED" redefined [-Werror] #define GLIB_VERSION_MIN_REQUIRED GLIB_VERSION_2_40 In file included from /usr/include/glib-2.0/glib/gtypes.h:34, from /usr/include/glib-2.0/glib/galloca.h:32, from /usr/include/glib-2.0/glib.h:30, from util/iova-tree.c:12: /usr/include/glib-2.0/glib/gversionmacros.h:237: note: this is the location of the previous definition # define GLIB_VERSION_MIN_REQUIRED (GLIB_VERSION_CUR_STABLE) Furthermore, the osdep.h include should always be done directly from the .c file rather than indirectly via any .h file. Reviewed-by: Philippe Mathieu-Daudé <f4...@amsat.org> Signed-off-by: Daniel P. Berrangé <berra...@redhat.com> --- include/qemu/iova-tree.h | 1 - util/iova-tree.c | 2 +- 2 files changed, 1 insertion(+), 2 deletions(-) diff --git a/include/qemu/iova-tree.h b/include/qemu/iova-tree.h index b061932097..b66cf93c4b 100644 --- a/include/qemu/iova-tree.h +++ b/include/qemu/iova-tree.h @@ -23,7 +23,6 @@ * for the thread safety issue. */ -#include "qemu/osdep.h" #include "exec/memory.h" #include "exec/hwaddr.h" diff --git a/util/iova-tree.c b/util/iova-tree.c index 2d9cebfc89..7990692cbd 100644 --- a/util/iova-tree.c +++ b/util/iova-tree.c @@ -9,7 +9,7 @@ * This work is licensed under the terms of the GNU GPL, version 2 or later. */ -#include <glib.h> +#include "qemu/osdep.h" #include "qemu/iova-tree.h" struct IOVATree { -- 2.17.0