The header "scsi-lowlevel.h" of libiscsi 1.9.0 contains some bad "inline" prototype definitions which GCC refuses to compile in its gnu99 mode:
In file included from block/iscsi.c:52:0: /usr/include/iscsi/scsi-lowlevel.h:810:13: error: inline function ‘scsi_set_uint16’ declared but never defined [-Werror] inline void scsi_set_uint16(unsigned char *c, uint16_t val); ^ /usr/include/iscsi/scsi-lowlevel.h:809:13: error: inline function ‘scsi_set_uint32’ declared but never defined [-Werror] inline void scsi_set_uint32(unsigned char *c, uint32_t val); ^ [...] This has been fixed by upstream libiscsi in version 1.10.0 (see https://github.com/sahlberg/libiscsi/commit/7692027d6c11 ), but since we still want to support 1.9.0 for CentOS 7 / RHEL7, we have to work-around the issue by redefining the "inline" keyword to use the old "gnu89" mode behavior via "gnu_inline" instead. Reviewed-by: Eric Blake <ebl...@redhat.com> Signed-off-by: Thomas Huth <th...@redhat.com> --- block/iscsi.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/block/iscsi.c b/block/iscsi.c index a7e8c1f..ff47320 100644 --- a/block/iscsi.c +++ b/block/iscsi.c @@ -49,7 +49,9 @@ /* Conflict between scsi/utils.h and libiscsi! :( */ #define SCSI_XFER_NONE ISCSI_XFER_NONE #include <iscsi/iscsi.h> +#define inline __attribute__((gnu_inline)) /* required for libiscsi v1.9.0 */ #include <iscsi/scsi-lowlevel.h> +#undef inline #undef SCSI_XFER_NONE QEMU_BUILD_BUG_ON((int)SCSI_XFER_NONE != (int)ISCSI_XFER_NONE); -- 1.8.3.1