diff -Nrup a/src/buildtools/config/linux.pri b/src/buildtools/config/linux.pri
--- a/src/buildtools/config/linux.pri	2020-01-20 12:17:16.000000000 +0100
+++ b/src/buildtools/config/linux.pri	2020-01-28 13:56:42.900177335 +0100
@@ -82,6 +82,7 @@ contains(QT_ARCH, "arm") {
         gn_args += arm_use_neon=true
     } else {
         MFPU = $$extractCFlag("-mfpu=.*")
+        !isEmpty(MFPU): gn_args += arm_fpu=\"$$MFPU\"
         !isEmpty(MFPU):contains(MFPU, ".*neon.*") {
             gn_args += arm_use_neon=true
         } else {