[oe] [PATCH] libvpx: fix 0.9.1 build when prefix=""

[Michael Smith]

The configure script was changed in 0.9.1 and introduced some logic that
breaks when prefix is an empty string.

Also switch to INC_PR for 0.9.0 and 0.9.1.

Signed-off-by: Michael Smith <msmith at cbnco.com>
---
 .../libvpx-configure-support-blank-prefix.patch    |   43 ++++++++++++++++++++
 recipes/webm/libvpx.inc                            |    2 +-
 recipes/webm/libvpx_0.9.0.bb                       |    2 +-
 recipes/webm/libvpx_0.9.1.bb                       |    9 ++++
 4 files changed, 54 insertions(+), 2 deletions(-)
 create mode 100644 recipes/webm/libvpx-0.9.1/libvpx-configure-support-blank-prefix.patch

diff --git a/recipes/webm/libvpx-0.9.1/libvpx-configure-support-blank-prefix.patch b/recipes/webm/libvpx-0.9.1/libvpx-configure-support-blank-prefix.patch
new file mode 100644
index 0000000..1bf863d
--- /dev/null
+++ b/recipes/webm/libvpx-0.9.1/libvpx-configure-support-blank-prefix.patch
@@ -0,0 +1,43 @@
+Upstream: not yet
+
+Fix configure to accept "--prefix=" (a blank prefix).
+
+--- libvpx-0.9.1/build/make/configure.sh.orig	2010-06-17 09:08:56.000000000 -0400
++++ libvpx-0.9.1/build/make/configure.sh	2010-09-23 14:27:48.000000000 -0400
+@@ -444,6 +444,8 @@
+         ;;
+         --prefix=*)
+         prefix="${optval}"
++        # Distinguish between "prefix not set" and "prefix set to ''"
++        prefixset=1
+         ;;
+         --libdir=*)
+         libdir="${optval}"
+@@ -471,13 +473,23 @@
+ 
+ 
+ post_process_common_cmdline() {
+-    prefix="${prefix:-/usr/local}"
++    if [ "$prefixset" != "1" ]
++    then
++        prefix=/usr/local
++    fi
++
++    # Strip trailing slash
+     prefix="${prefix%/}"
++
+     libdir="${libdir:-${prefix}/lib}"
+     libdir="${libdir%/}"
+-    if [ "${libdir#${prefix}}" = "${libdir}" ]; then
+-        die "Libdir ${libdir} must be a subdirectory of ${prefix}"
+-    fi
++
++    case "$libdir" in
++        "${prefix}/"*) ;;
++        *)
++            die "Libdir ${libdir} must be a subdirectory of ${prefix}"
++            ;;
++    esac
+ }
+ 
+ 
diff --git a/recipes/webm/libvpx.inc b/recipes/webm/libvpx.inc
index a0aebff..d773d3a 100644
--- a/recipes/webm/libvpx.inc
+++ b/recipes/webm/libvpx.inc
@@ -1,7 +1,7 @@
 DESCRIPTION = "vpx Multi-Format Codec SDK"
 LICENSE = "BSD"
 
-PR = "r1"
+INC_PR = "r4"
 
 SRC_URI = "http://webm.googlecode.com/files/libvpx-${PV}.tar.bz2"
 
diff --git a/recipes/webm/libvpx_0.9.0.bb b/recipes/webm/libvpx_0.9.0.bb
index 8992c04..3447c6f 100644
--- a/recipes/webm/libvpx_0.9.0.bb
+++ b/recipes/webm/libvpx_0.9.0.bb
@@ -2,7 +2,7 @@ require libvpx.inc
 
 LICENSE = "VP8"
 
-PR = "r3"
+PR = "${INC_PR}.0"
 
 SRC_URI[md5sum] = "9eb8e818d2f3263623c258fe66924082"
 SRC_URI[sha256sum] = "a0096ac6859cfb61cf06dd9bc0a79a3333a4ec389ba311911d84df8ff2a1b9dc"
diff --git a/recipes/webm/libvpx_0.9.1.bb b/recipes/webm/libvpx_0.9.1.bb
index b5471b8..bcb7358 100644
--- a/recipes/webm/libvpx_0.9.1.bb
+++ b/recipes/webm/libvpx_0.9.1.bb
@@ -1,5 +1,14 @@
 require libvpx.inc
 
+PR = "${INC_PR}.0"
+
+SRC_URI += "file://libvpx-configure-support-blank-prefix.patch;apply=yes"
+
+CONFIGUREOPTS += " \
+        --prefix=${prefix} \
+        --libdir=${libdir} \
+"
+
 SRC_URI[md5sum] = "e1442e74d0cca228785083fa520735a2"
 SRC_URI[sha256sum] = "c4e8e463e079ffde5b6948366a1d0873f1bf685dccd89ca137585c2b8247ec59"
 
-- 
1.7.0.4