eclass/ruby-fakegem.eclass: add options support for extensions

Introduce RUBY_FAKEGEM_EXTENSION_OPTIONS to allow setting options for
extensions.

Signed-off-by: Hans de Graaff <[email protected]>

eclass/ruby-fakegem.eclass

@@ -123,6 +123,13 @@ RUBY_FAKEGEM_BINDIR="${RUBY_FAKEGEM_BINDIR-bin}"
 # the configuration script that needs to be run to generate the
 # extension.
 
+# @ECLASS-VARIABLE: RUBY_FAKEGEM_EXTENSION_OPTIONS
+# @DEFAULT_UNSET
+# @DESCRIPTION:
+# Additional options that are passed when configuring the
+# extension. Some extensions use this to locate paths or turn specific
+# parts of the extionsion on or off.
+
 # @ECLASS-VARIABLE: RUBY_FAKEGEM_EXTENSION_LIBDIR
 # @DESCRIPTION:
 # The lib directory where extensions are copied directly after they have
@@ -404,7 +411,7 @@ EOF
 each_fakegem_configure() {
 	tc-export PKG_CONFIG
 	for extension in "${RUBY_FAKEGEM_EXTENSIONS[@]}" ; do
-		CC=$(tc-getCC) ${RUBY} --disable=did_you_mean -C ${extension%/*} ${extension##*/} || die
+		CC=$(tc-getCC) ${RUBY} --disable=did_you_mean -C ${extension%/*} ${extension##*/} ${RUBY_FAKEGM_EXTENSION_OPTIONS} || die
 	done
 }