extras/mac: set deployment target to 10.7 so we can use libc++

extras/package/macosx/build.sh

@@ -10,7 +10,7 @@ info()
 }
 
 ARCH="x86_64"
-MINIMAL_OSX_VERSION="10.6"
+MINIMAL_OSX_VERSION="10.7"
 OSX_VERSION=`xcrun --show-sdk-version`
 SDKROOT=`xcode-select -print-path`/Platforms/MacOSX.platform/Developer/SDKs/MacOSX$OSX_VERSION.sdk
 

extras/package/macosx/configure.sh

@@ -35,7 +35,7 @@ OPTIONS="
         --disable-caca
         --disable-sdl
         --disable-macosx-dialog-provider
-        --with-macosx-version-min=10.6
+        --with-macosx-version-min=10.7
 "
 
 export CFLAGS