Index: uspace/lib/libc/Makefile.toolchain
===================================================================
--- uspace/lib/libc/Makefile.toolchain	(revision f5b4fb9e3f8394a50dce063b7a44b6e5b2ab1468)
+++ uspace/lib/libc/Makefile.toolchain	(revision c947ddaf96090f24e3214f83f9af8b837a7e00da)
@@ -28,5 +28,5 @@
 
 DEFS = -DARCH=$(ARCH)
-CFLAGS = -fno-builtin -Wall -Werror-implicit-function-declaration -Wmissing-prototypes -O3 -nostdlib -nostdinc -I$(LIBC_PREFIX)/include
+CFLAGS = -fno-builtin -Wall -Werror-implicit-function-declaration -Wmissing-prototypes -O3 -nostdlib -nostdinc -I$(LIBC_PREFIX)/include -pipe
 LFLAGS = -M -N $(SOFTINT_PREFIX)/libsoftint.a
 AFLAGS =