configure improvements and fixes

MAINTAINERS update
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Merge remote-tracking branch 'remotes/vivier2/tags/trivial-patches-pull-request' into staging

configure improvements and fixes
MAINTAINERS update

# gpg: Signature made Wed 26 Jun 2019 21:02:10 BST
# gpg:                using RSA key CD2F75DDC8E3A4DC2E4F5173F30C38BD3F2FBE3C
# gpg:                issuer "laurent@vivier.eu"
# gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" [full]
# gpg:                 aka "Laurent Vivier <laurent@vivier.eu>" [full]
# gpg:                 aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>" [full]
# Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F  5173 F30C 38BD 3F2F BE3C

* remotes/vivier2/tags/trivial-patches-pull-request:
  MAINTAINERS: Change maintership of Xen code under hw/9pfs
  configure: use valid args testing sem_timedwait
  configure: disallow spaces and colons in source path and build path
  configure: set source_path only once and make its definition more robust

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

MAINTAINERS

@@ -408,7 +408,7 @@ M: Paul Durrant <paul.durrant@citrix.com>
 L: xen-devel@lists.xenproject.org
 S: Supported
 F: */xen*
-F: hw/9pfs/xen-9p-backend.c
+F: hw/9pfs/xen-9p*
 F: hw/char/xen_console.c
 F: hw/display/xenfb.c
 F: hw/net/xen_nic.c
@@ -1498,6 +1498,7 @@ virtio-9p
 M: Greg Kurz <groug@kaod.org>
 S: Supported
 F: hw/9pfs/
+X: hw/9pfs/xen-9p*
 F: fsdev/
 F: tests/virtio-9p-test.c
 T: git https://github.com/gkurz/qemu.git 9p-next

Makefile

@@ -1,5 +1,9 @@
 # Makefile for QEMU.
 
+ifneq ($(words $(subst :, ,$(CURDIR))), 1)
+  $(error main directory cannot contain spaces nor colons)
+endif
+
 # Always point to the root of the build tree (needs GNU make).
 BUILD_DIR=$(CURDIR)
 

configure

@@ -276,10 +276,15 @@ ld_has() {
     $ld --help 2>/dev/null | grep ".$1" >/dev/null 2>&1
 }
 
-# default parameters
-source_path=$(dirname "$0")
 # make source path absolute
-source_path=$(cd "$source_path"; pwd)
+source_path=$(cd "$(dirname -- "$0")"; pwd)
+
+if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
+then
+  error_exit "main directory cannot contain spaces nor colons"
+fi
+
+# default parameters
 cpu=""
 iasl="iasl"
 interp_prefix="/usr/gnemul/qemu-%M"
@@ -5130,7 +5135,7 @@ fi
 sem_timedwait=no
 cat > $TMPC << EOF
 #include <semaphore.h>
-int main(void) { return sem_timedwait(0, 0); }
+int main(void) { sem_t s; struct timespec t = {0}; return sem_timedwait(&s, &t); }
 EOF
 if compile_prog "" "" ; then
     sem_timedwait=yes