Merge pull request #2701 from CvH/9.0-pngquant

pngquant: update to 2.11.7

packages/addons/addon-depends/pngquant/package.mk

@@ -17,8 +17,8 @@
 ################################################################################
 
 PKG_NAME="pngquant"
-PKG_VERSION="2.9.1"
+PKG_VERSION="2.11.7"
-PKG_SHA256="ac2138207ef40acd4e5fdae18798139a9d75dae4f1d0837aea918a2a8c433481"
+PKG_SHA256="d70b46c3335c7abf21944aced2d9d2b54819ab84ed1a140b354d5e8cc9f0fb0a"
 PKG_ARCH="any"
 PKG_LICENSE="GPLv3"
 PKG_SITE="https://pngquant.org"
@@ -29,7 +29,7 @@ PKG_SHORTDESC="lossy PNG compressor"
 PKG_LONGDESC="a PNG compresor that significantly reduces file sizes by converting images to a more efficient 8-bit PNG format"
 
 configure_host() {
-  : #
+  :
 }
 
 make_host() {

packages/addons/addon-depends/pngquant/patches/pngquant-no-temp-dir.patch

@@ -0,0 +1,29 @@
+From: Kornel <kornel@geekhood.net>
+Date: Mon, 14 May 2018 10:37:34 +0100
+Subject: [PATCH] Non-writable /tmp is a thing
+
+---
+ configure | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+diff --git a/configure b/configure
+index 7a609659..0a2b73e8 100755
+--- a/configure
++++ b/configure
+@@ -271,13 +271,15 @@ error() {
+ echo
+ 
+ # /tmp, because mingw has problems opening /dev/null and gives false negative
+-if ! echo "int main(){}" | "$CC" -xc -std=c99 -o /tmp/gcccheck - > /dev/null; then
++if ! echo "int main(){}" | "$CC" -xc -std=c99 -o pngquant-gcccheck - > /dev/null; then
++    rm -f pngquant-gcccheck
+     if [ "$SKIP_CC_CHECK" -eq 1 ]; then
+         status "Compiler" "$CC failed to compile anything (make sure it's installed and supports C99)"
+     else
+         error "Compiler" "$CC failed to compile anything (make sure it's installed and supports C99)"
+     fi
+ fi
++rm -f pngquant-gcccheck
+ 
+ status "Compiler" "$CC"
+