configure.in.in

diff --git a/configure.in.in b/configure.in.in

index 01eed78..fcc9649 100644

--- a/configure.in.in

+++ b/configure.in.in

@@ -288,6 +288,37 @@

 if test -n "$OPENEXR_LIBS"

 then

   AC_MSG_RESULT([yes])

+

+  AC_LANG_SAVE

+  AC_LANG_CPLUSPLUS

+  SAVED_CXXFLAGS="$CXXFLAGS"

+  for CXX_STD_TEST in "" 11 14 17; do

+    CXXFLAGS="$SAVED_CXXFLAGS"

+    if test "x$CXX_STD_TEST" = "x"; then

+      AC_MSG_CHECKING([OpenEXR build with default C++ standard])

+      OPENEXR_CXXFLAGS=""

+    else

+      AC_MSG_CHECKING([OpenEXR build with C++$CXX_STD_TEST])

+      OPENEXR_CXXFLAGS="-std=c++$CXX_STD_TEST"

+    fi

+    CXXFLAGS="$SAVED_CXXFLAGS $OPENEXR_CFLAGS $OPENEXR_CXXFLAGS"

+    AC_TRY_COMPILE([

+        #include <ImfRgbaFile.h>

+      ],[ ],

+      openexr_cxx_std=yes,

+      openexr_cxx_std=no

+    )

+    if test "x$openexr_cxx_std" = "xyes"; then

+      AC_SUBST(OPENEXR_CXXFLAGS)

+      AC_MSG_RESULT(yes)

+      break

+    else

+      AC_MSG_RESULT(no)

+    fi

+  done

+  CXXFLAGS="$SAVED_CXXFLAGS"

+  AC_LANG_RESTORE

+

 else

   AC_MSG_RESULT([not found])

 fi

@@ -296,6 +327,6 @@

 AC_SUBST(OPENEXR_CFLAGS)

 AC_SUBST(OPENEXR_RPATH)

-AM_CONDITIONAL(have_openexr, test -n "$OPENEXR_LIBS")

+AM_CONDITIONAL(have_openexr, test "x$openexr_cxx_std" = "xyes")

 # --- End of OpenEXR check ---

filters/chalk/openexr/Makefile.am

diff --git a/filters/chalk/openexr/Makefile.am b/filters/chalk/openexr/Makefile.am

index 3a7dc47..691cbd2 100644

--- a/filters/chalk/openexr/Makefile.am

+++ b/filters/chalk/openexr/Makefile.am

@@ -13,6 +13,8 @@

         $(OPENEXR_CFLAGS) \

 	$(all_includes) 

+CXXFLAGS += $(OPENEXR_CXXFLAGS)

+

 kde_module_LTLIBRARIES = libchalk_openexr_import.la libchalk_openexr_export.la

 libchalk_openexr_export_la_LDFLAGS = $(KDE_PLUGIN) $(KDE_RPATH) $(all_libraries) -module -avoid-version -no-undefined $(all_libraries) -ltdecore -ltdeui $(LIB_TQT) -lkjs -ltdefx -ltdeio -ltdeparts