Fix Windows build failure.

[libdcp.git] / src / h_align.cc

diff --git a/src/h_align.cc b/src/h_align.cc
index 71e775cf8fc6d4a554233a2a63b6637b117f776f..fa627ef06a037e961c313d8a6433a992e6f7641b 100644 (file)
--- a/src/h_align.cc
+++ b/src/h_align.cc
@@ -35,6 +35,7 @@
 
 #include "exceptions.h"
 #include "h_align.h"
+#include <algorithm>
 
 
 using std::string;
@@ -60,7 +61,7 @@ dcp::halign_to_string(HAlign h)
 HAlign
 dcp::string_to_halign(string s)
 {
-       transform(s.begin(), s.end(), s.begin(), ::tolower);
+       std::transform(s.begin(), s.end(), s.begin(), ::tolower);
 
        if (s == "left") {
                return HAlign::LEFT;