diff --git a/newlib/libc/machine/sh/Makefile.am b/newlib/libc/machine/sh/Makefile.am
index adf81a5d1..b44cd8d48 100644
--- a/newlib/libc/machine/sh/Makefile.am
+++ b/newlib/libc/machine/sh/Makefile.am
@@ -4,7 +4,7 @@ AUTOMAKE_OPTIONS = cygnus
 
 INCLUDES = $(NEWLIB_CFLAGS) $(CROSS_CFLAGS) $(TARGET_CFLAGS)
 
-AM_CCASFLAGS = $(INCLUDES)
+AM_CCASFLAGS = $(INCLUDES) $(CFLAGS)
 
 noinst_LIBRARIES = lib.a
 
diff --git a/newlib/libc/machine/sh/Makefile.in b/newlib/libc/machine/sh/Makefile.in
index 67bf721b6..dd56b12b6 100644
--- a/newlib/libc/machine/sh/Makefile.in
+++ b/newlib/libc/machine/sh/Makefile.in
@@ -192,7 +192,7 @@ sysconfdir = @sysconfdir@
 target_alias = @target_alias@
 AUTOMAKE_OPTIONS = cygnus
 INCLUDES = $(NEWLIB_CFLAGS) $(CROSS_CFLAGS) $(TARGET_CFLAGS)
-AM_CCASFLAGS = $(INCLUDES)
+AM_CCASFLAGS = $(INCLUDES) $(CFLAGS)
 noinst_LIBRARIES = lib.a
 @SH64_FALSE@lib_a_SOURCES = memcpy.S memset.S setjmp.S strcpy.S strlen.S strcmp.S
 @SH64_TRUE@lib_a_SOURCES = memcpy.S memset.S setjmp.S strcpy.S strlen.S strcmp.S strncpy.S