Fixes gcc-4.2.1+libstdc++ compatibility (closes #25)

12 jobs for 25-gcc421 in 8 minutes and 25 seconds (queued for 5 seconds)
Status Job ID Name Coverage
  Build
passed #44819
conda-linux
build_linux_27

00:01:57

passed #44821
conda-linux
build_linux_34

00:02:22

passed #44823
conda-linux
build_linux_35

00:02:21

passed #44824
conda-macosx
build_macosx_27

00:04:29

passed #44822
conda-macosx
build_macosx_34

00:05:09

passed #44820
conda-macosx
build_macosx_35

00:04:22

 
  Test
passed #44829
conda-linux
test_linux_27

00:01:06

72.0%
passed #44827
conda-linux
test_linux_34

00:01:07

72.0%
passed #44825
conda-linux
test_linux_35

00:01:08

72.0%
passed #44826
conda-macosx
test_macosx_27

00:03:15

72.0%
passed #44828
conda-macosx
test_macosx_34

00:03:14

72.0%
passed #44830
conda-macosx
test_macosx_35

00:03:14

72.0%