diff --git a/build/jam/ArchitectureRules b/build/jam/ArchitectureRules
index 6ea2d8fd56..de08e22ad4 100644
--- a/build/jam/ArchitectureRules
+++ b/build/jam/ArchitectureRules
@@ -49,7 +49,14 @@ rule ArchitectureSetup architecture
 			-Wno-cast-align -Wno-gnu-designator ;
 	}
 
+	# default architecture tuning
+	# TODO: Do we want x86_gcc2 -march=pentium here?
 	local cpu = $(HAIKU_CPU_$(architecture)) ;
+	switch $(cpu) {
+		case arm :
+			ccBaseFlags += -march=armv7-a -mfloat-abi=hard ;
+	}
+
 	if $(cpu) = arm {
 		if $(HAIKU_CC_IS_CLANG_$(architecture)) != 1 {
 			# For stackcrawls - not supported by Clang