glibc's malloc is very bad about returning memory from the kernel, add a call

to its malloc_trim to prompt it to do so. Reported by Sarunas Valaskevicius.

1 files changed, 3 insertions, 0 deletions

diff --git a/grid.c b/grid.c
index 96302fc3..90e1a0a5 100644
--- a/grid.c
+++ b/grid.c
@@ -265,6 +265,9 @@ grid_free_lines(struct grid *gd, u_int py, u_int ny)
 
 	for (yy = py; yy < py + ny; yy++)
 		grid_free_line(gd, yy);
+#ifdef HAVE_MALLOC_TRIM
+	malloc_trim(0);
+#endif
 }
 
 /* Create a new grid. */