[Qemu-devel] [PATCH v4] configure: avoid screening of --{en, dis}able-usb-redir options

[Max Filippov <jcmvbkbc@gmail.com>]

--*dir) option pattern precede --{en,dis}able-usb-redir) patterns in the
option analysis switch, making the latter options have no effect.

There were some --*dir that are supported by Autoconf and not by QEMU configure.
The aim was to let QEMU packagers use the rpm (or similar) macro that overrides
directories for their distribution.

Replace --*dir with exact option names.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
---
v2 -> v3 changes: add --htmldir
v3 -> v4 changes: collapse cases, include rationale into the configure
---
 configure |   10 ++++++++--
 1 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index f033438..60c3740 100755
--- a/configure
+++ b/configure
@@ -569,6 +569,14 @@ for opt do
   ;;
   --sysconfdir=*) sysconfdir="$optarg"
   ;;
+  --sbindir=*|--libexecdir=*|--sharedstatedir=*|--localstatedir=*|\
+  --oldincludedir=*|--datarootdir=*|--infodir=*|--localedir=*|\
+  --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
+    # These switches are silently ignored, for compatibility with
+    # autoconf-generated configure scripts. This allows QEMU's
+    # configure to be used by RPM and similar macros that set
+    # lots of directory switches by default.
+  ;;
   --disable-sdl) sdl="no"
   ;;
   --enable-sdl) sdl="yes"
@@ -759,8 +767,6 @@ for opt do
   ;;
   --enable-opengl) opengl="yes"
   ;;
-  --*dir)
-  ;;
   --disable-rbd) rbd="no"
   ;;
   --enable-rbd) rbd="yes"
-- 
1.7.2.5