mdds2: fix build for x86 arch

dev-util/mdds/mdds2-2.0.1.recipe

@@ -4,7 +4,7 @@ and indexing algorithms."
 HOMEPAGE="https://gitlab.com/mdds/mdds"
 COPYRIGHT="2010-2021 Kohei Yoshida et al."
 LICENSE="MIT"
-REVISION="1"
+REVISION="2"
 SOURCE_URI="https://kohei.us/files/mdds/src/mdds-$portVersion.tar.bz2"
 SOURCE_DIR="mdds-$portVersion"
 CHECKSUM_SHA256="3ab33fce58e6acf9540cc1a52264be6863ef80f55ac287194cc98cda48e71fe6"
@@ -26,13 +26,21 @@ BUILD_PREREQUIRES="
 	cmd:aclocal
 	cmd:autoconf
 	cmd:automake
+	cmd:autoreconf
 	cmd:g++
 	cmd:ld
 	cmd:make
+	cmd:sed
 	"
 
+PATCH()
+{
+	sed -e '/AX_CXX_COMPILE_STDCXX_17/ s/^#*/#/' -i configure.ac
+}
+
 BUILD()
 {
+	autoreconf
 	runConfigure ./configure
 	make $jobArgs
 }