[vte/vte-0-32] build: Add fallback for round on interix

[Christian Persch <chpe src gnome org>]

commit be763b49aabc14fb48a5533a32645b6d88f31fbb
Author: Markus Duft <mduft gentoo org>
Date:   Thu Mar 8 21:44:14 2012 +0100

    build: Add fallback for round on interix

 configure.in |    2 +-
 src/vte.c    |   10 ++++++++++
 2 files changed, 11 insertions(+), 1 deletions(-)
---
diff --git a/configure.in b/configure.in
index 4a558da..b466699 100644
--- a/configure.in
+++ b/configure.in
@@ -236,7 +236,7 @@ if test x$have_recvmsg = x1 ; then
 	AC_DEFINE(HAVE_RECVMSG,1,[Define if you have the recvmsg function.])
 fi
 AC_CHECK_FUNC(floor,,AC_CHECK_LIB(m,floor,LIBS=["$LIBS -lm"]))
-AC_CHECK_FUNCS([ceil floor])
+AC_CHECK_FUNCS([ceil floor round])
 
 # Look for tgetent
 
diff --git a/src/vte.c b/src/vte.c
index 1255a61..271309e 100644
--- a/src/vte.c
+++ b/src/vte.c
@@ -63,6 +63,16 @@
 #include <locale.h>
 #endif
 
+#ifndef HAVE_ROUND
+static inline double round(double x) {
+	if(x - floor(x) < 0.5) {
+		return floor(x);
+	} else {
+		return ceil(x);
+	}
+}
+#endif
+
 #if GTK_CHECK_VERSION (2, 90, 7)
 #define GDK_KEY(symbol) GDK_KEY_##symbol
 #else