regtest: add C++11 flag to build of user_histo1.cpp

For old compilers that don't default to C++11 or later

diff --git a/dhat/tests/Makefile.am b/dhat/tests/Makefile.am
index 818cc10d084a60de7b1a8725e7299c45b82b10d1..aba7f06fdf9f51d96df8c173f0fe3dbd9908d3ec 100644 (file)
--- a/dhat/tests/Makefile.am
+++ b/dhat/tests/Makefile.am
@@ -37,3 +37,4 @@ big_CFLAGS  = $(AM_CFLAGS) -Wno-unused-result
 copy_CFLAGS = $(AM_CFLAGS) -fno-builtin
 
 user_histo1_SOURCES = user_histo1.cpp
+user_histo1_CXXFLAGS = $(AM_CXXFLAGS) -std=c++11