protobuf: Add note about 3.1 build failure

diff --git a/packages/protobuf/build.sh b/packages/protobuf/build.sh
index 1e9e03a..50c9e9c 100755 (executable)
--- a/packages/protobuf/build.sh
+++ b/packages/protobuf/build.sh
@@ -6,3 +6,8 @@ TERMUX_PKG_SRCURL=https://github.com/google/protobuf/releases/download/v${TERMUX
 # Build a host build first and use the host build protoc:
 TERMUX_PKG_HOSTBUILD=yes
 TERMUX_PKG_EXTRA_CONFIGURE_ARGS="--with-protoc=$TERMUX_PKG_HOSTBUILD_DIR/src/protoc"
+
+# Version 3.1.0 currently fails to build:
+# TERMUX_PKG_VERSION=3.1.0
+# TERMUX_PKG_SRCURL=https://github.com/google/protobuf/releases/download/v${TERMUX_PKG_VERSION}/protobuf-cpp-${TERMUX_PKG_VERSION}.tar.gz
+# TERMUX_PKG_FOLDERNAME=protobuf-$TERMUX_PKG_VERSION