Use -pthread instead of -lpthread on FreeBSD.
diff --git a/configs/freebsd-dri b/configs/freebsd-dri
index 1492e4a..402883d 100644
--- a/configs/freebsd-dri
+++ b/configs/freebsd-dri
@@ -27,9 +27,9 @@
# Library/program dependencies
LIBDRM_CFLAGS = `pkg-config --cflags libdrm`
LIBDRM_LIB = `pkg-config --libs libdrm`
-DRI_LIB_DEPS = -L/usr/local/lib -lm -lpthread -lexpat $(LIBDRM_LIB)
+DRI_LIB_DEPS = -L/usr/local/lib -lm -pthread -lexpat $(LIBDRM_LIB)
GL_LIB_DEPS = -L/usr/X11R6/lib -lX11 -lXext -lXxf86vm -lXdamage -lXfixes \
- -lm -lpthread $(LIBDRM_LIB)
+ -lm -pthread $(LIBDRM_LIB)
GLUT_LIB_DEPS = -L$(TOP)/$(LIB_DIR) -L/usr/X11R6/lib -lGLU -lGL -lX11 -lXmu -lXt -lXi -lm
GLW_LIB_DEPS = -L$(TOP)/$(LIB_DIR) -L/usr/X11R6/lib -lGL -lXt -lX11