[Buildroot] [PATCH v1] package/qt5/qt5base: handle sse2/sse3/ssse3/sse4.1/sse4.2/avx/avx2 configuration

[Peter Seiderer <ps.report@gmx.net>]

The Qt configure auto detection (and anounced runtime detection
feature) failes (see e.g. [1]), so override the configuration
with the buildroot determined settings.

[1] http://lists.busybox.net/pipermail/buildroot/2019-January/241862.html

Reported-by: David Picard <dplamp@gmx.com>
Signed-off-by: Peter Seiderer <ps.report@gmx.net>
---
Notes:
 - suggested by Arnout Vandecappelle [2]

[2] http://lists.busybox.net/pipermail/buildroot/2019-January/242030.html
---
 package/qt5/qt5base/qt5base.mk | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/package/qt5/qt5base/qt5base.mk b/package/qt5/qt5base/qt5base.mk
index d10f233b46..b84efcc2bf 100644
--- a/package/qt5/qt5base/qt5base.mk
+++ b/package/qt5/qt5base/qt5base.mk
@@ -33,6 +33,37 @@ else
 QT5BASE_DEPENDENCIES += pcre2
 endif
 
+ifeq ($(BR2_X86_CPU_HAS_SSE2),)
+QT5BASE_CONFIGURE_OPTS += -no-sse2
+else
+ifeq ($(BR2_X86_CPU_HAS_SSE3),)
+QT5BASE_CONFIGURE_OPTS += -no-sse3
+else
+ifeq ($(BR2_X86_CPU_HAS_SSSE3),)
+QT5BASE_CONFIGURE_OPTS += -no-ssse3
+else
+ifeq ($(BR2_X86_CPU_HAS_SSE4),)
+QT5BASE_CONFIGURE_OPTS += -no-sse4.1
+else
+ifeq ($(BR2_X86_CPU_HAS_SSE42),)
+QT5BASE_CONFIGURE_OPTS += -no-sse4.2
+else
+ifeq ($(BR2_X86_CPU_HAS_AVX),)
+QT5BASE_CONFIGURE_OPTS += -no-avx
+else
+ifeq ($(BR2_X86_CPU_HAS_AVX2),)
+QT5BASE_CONFIGURE_OPTS += -no-avx2
+else
+# no BR2_X86_CPU_HAS_AVX512 for qt configure option
+# '-no-avx512' (available for latest)
+endif
+endif
+endif
+endif
+endif
+endif
+endif
+
 QT5BASE_CONFIGURE_OPTS += $(call qstrip,$(BR2_PACKAGE_QT5BASE_CUSTOM_CONF_OPTS))
 
 ifeq ($(BR2_PACKAGE_LIBDRM),y)
-- 
2.20.1