[Buildroot] [git commit] poppler: qt5 support needs c++11 (since Qt5.7)

[Thomas Petazzoni]

commit: https://git.buildroot.net/buildroot/commit/?id=30403351d1a3a4c65e415981808301053628b01e
branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/master

Signed-off-by: Andreas Naumann <anaumann at ultratronik.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
---
 package/poppler/poppler.mk | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/package/poppler/poppler.mk b/package/poppler/poppler.mk
index 022c2c5..fda8284 100644
--- a/package/poppler/poppler.mk
+++ b/package/poppler/poppler.mk
@@ -90,6 +90,10 @@ endif
 ifeq ($(BR2_PACKAGE_POPPLER_QT5),y)
 POPPLER_DEPENDENCIES += qt5base
 POPPLER_CONF_OPTS += --enable-poppler-qt5
+# since Qt5.7.x c++11 is needed (LTS Qt5.6.x is the last one without this requirement)
+ifeq ($(BR2_PACKAGE_QT5_VERSION_LATEST),y)
+POPPLER_CONF_ENV += CXXFLAGS="$(TARGET_CXXFLAGS) -std=c++11"
+endif
 else
 POPPLER_CONF_OPTS += --disable-poppler-qt5
 endif