diff --git a/package/flann/Config.in b/package/flann/Config.in
index 3725fc784f..a2cd50c867 100644
--- a/package/flann/Config.in
+++ b/package/flann/Config.in
@@ -2,6 +2,9 @@ config BR2_PACKAGE_FLANN
 	bool "flann"
 	depends on BR2_INSTALL_LIBSTDCPP
 	depends on !BR2_STATIC_LIBS
+	# all gcc versions fail to build flann on Microblaze due to
+	# gcc bug https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69401
+	depends on !BR2_microblaze
 	help
 	  FLANN is a library for performing fast approximate nearest
 	  neighbor searches in high dimensional spaces. It contains a
@@ -22,4 +25,5 @@ config BR2_PACKAGE_FLANN_EXAMPLES
 endif
 
 comment "flann needs a toolchain w/ C++, dynamic library"
+	depends on !BR2_microblaze
 	depends on !BR2_INSTALL_LIBSTDCPP || BR2_STATIC_LIBS