gentoo-overlay/sys-apps/proot/files/proot-3.2.1-makefile.patch

--- src/GNUmakefile.orig	2013-12-06 10:47:18.554784621 +0400
+++ src/GNUmakefile	2013-12-06 10:47:43.129785804 +0400
@@ -9,7 +9,7 @@
 CC       = gcc
 LD       = $(CC)
 CPPFLAGS += -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE -I. -I$(VPATH)
-CFLAGS   += -Wall -Wextra -O2
+CFLAGS   += -Wall -Wextra
 LDFLAGS  += -ltalloc
 
 OBJECTS = \