Also, attempting to install Locale::gettext gives the following error (from the log):

cpanm (App::cpanminus) 1.7014 on perl 5.020001 built for darwin-2level
Work directory is /Users/trey/.cpanm/work/1414409291.13907
You have make /usr/bin/make
You have /usr/local/bin/wget
You have /usr/bin/tar: bsdtar 2.8.3 - libarchive 2.8.3
You have /usr/bin/unzip
Searching Locale::gettext on cpanmetadb ...
--> Working on Locale::gettext
Fetching http://www.cpan.org/authors/id/P/PV/PVANDRY/gettext-1.05.tar.
+gz
-> OK
Unpacking gettext-1.05.tar.gz
Entering gettext-1.05
META.yml/json not found. Creating skeleton for it.
Configuring gettext-1.05
Running Makefile.PL
checking for gettext... no
checking for gettext in -lintl...gettext function not found. Please in
+stall libintl at Makefile.PL line 18.
 no
-> N/A
-> FAIL Configure failed for gettext-1.05. See /Users/trey/.cpanm/work
+/1414409291.13907/build.log for details.
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How do I install the needed libintl?