diff --git a/aux/devel.sh b/aux/devel.sh
index d6a748e..8dd31b5 100755
--- a/aux/devel.sh
+++ b/aux/devel.sh
@@ -2,21 +2,22 @@
 
 set -xe
 
+debugopt=""
+
 if [ "$1" = "debug" ]; then
-  make -B all_kernel buildtype=debug
-else
-  make -B all_kernel
+  debugopt="buildtype=debug"
 fi
 
-make -B all_libsystem
-make -B all_liballoc
-make -B all_libprocess
-make -B all_libterminal
-make -B all_libstring
-make -B all_libkb
-make -B all_libaux
-make -B all_libarena
-make -B all_libioutil
-make -B all_apps
+make -B all_kernel        "$debugopt"
+make -B all_libsystem     "$debugopt"
+make -B all_liballoc      "$debugopt"
+make -B all_libprocess    "$debugopt"
+make -B all_libterminal   "$debugopt"
+make -B all_libstring     "$debugopt"
+make -B all_libkb         "$debugopt"
+make -B all_libaux        "$debugopt"
+make -B all_libarena      "$debugopt"
+make -B all_libioutil     "$debugopt"
+make -B all_apps          "$debugopt"
 make -B all_dist
 ./aux/limine_iso_amd64.sh
diff --git a/generic/flags.mk b/generic/flags.mk
index d525f21..54a6658 100644
--- a/generic/flags.mk
+++ b/generic/flags.mk
@@ -5,9 +5,15 @@ cflags += -nostdinc \
 					-std=c11 \
 					-pedantic \
 					-Wall \
-					-Wextra \
-					-ffunction-sections \
-					-fdata-sections
+					-Wextra
+
+ifeq ($(buildtype),debug)
+	cflags += -O0 -g
+endif
+
+ifeq ($(buildtype),release)
+	cflags += -ffunction-sections -fdata-sections -Oz
+endif
 
 cflags += -isystem ../include
 
@@ -15,6 +21,14 @@ ldflags += -ffreestanding \
 					 -nostdlib \
 					 -fno-builtin \
 					 -fuse-ld=lld \
-					 -static \
-					 -Wl,--gc-sections \
-					 -flto
+					 -static
+
+ifeq ($(buildtype),debug)
+	ldflags += -g
+endif
+
+ifeq ($(buildtype),release)
+	ldflags += -Wl,--gc-sections \
+						 -Wl,--strip-all \
+						 -flto
+endif