Check that doxygen version is 1.8.2 in docs generation script.

Doxygen often has backwards incompatible changes, so verify that we really use
the version the docs are supposed to be generated with.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@72880 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

diff --git a/docs/doxygen/regen.sh b/docs/doxygen/regen.sh
index 6b52bdd621a5208a7aa10e0f7cd281d11034d117..1a5d7f067e35f5014bd35163f6705c258b8ae61c 100755 (executable)
--- a/docs/doxygen/regen.sh
+++ b/docs/doxygen/regen.sh
@@ -36,6 +36,21 @@ if [ "$DOXYGEN" = "" ]; then
     DOXYGEN=doxygen
 fi
 
+# Check that doxygen has the correct version as different versions of it are
+# unfortunately not always (in fact, practically never) compatible.
+#
+# Still allow using incompatible version for some quick local testing if really
+# needed and 1.8.2 can't be installed for whatever reason.
+if [[ -z $WX_SKIP_DOXYGEN_VERSION_CHECK ]]; then
+    doxygen_version=`$DOXYGEN --version`
+    doxygen_version_required=1.8.2
+    if [[ $doxygen_version != $doxygen_version_required ]]; then
+        echo "Doxygen version $doxygen_version is not supported."
+        echo "Please use Doxygen $doxygen_version_required or export WX_SKIP_DOXYGEN_VERSION_CHECK."
+        exit 1
+    fi
+fi
+
 # prepare folders for the cp commands below
 mkdir -p out/html       # we need to copy files in this folder below
 mkdir -p out/html/generic