--- tmux-1.2/GNUmakefile
+++ tmux-1.2/GNUmakefile
@@ -56,7 +56,7 @@
 INSTALLBIN= install -g bin -o root -m 555
 INSTALLMAN= install -g bin -o root -m 444
 
-SRCS= $(shell echo *.c|sed 's|osdep-[a-z0-9]*.c||g')
+SRCS= $(shell echo *.c|LC_ALL=C sed 's|osdep-[a-z0-9]*.c||g')
 include config.mk
 OBJS= $(patsubst %.c,%.o,$(SRCS))
 
--- tmux-1.2/Makefile
+++ tmux-1.2/Makefile
@@ -52,7 +52,7 @@
 INSTALLBIN= install -g bin -o root -m 555
 INSTALLMAN= install -g bin -o root -m 444
 
-SRCS!= echo *.c|sed 's|osdep-[a-z0-9]*.c||g'
+SRCS!= echo *.c|LC_ALL=C sed 's|osdep-[a-z0-9]*.c||g'
 .include "config.mk"
 OBJS= ${SRCS:S/.c/.o/}