diff --git a/gcc/config/m68k/t-amigaos b/gcc/config/m68k/t-amigaos
index 05c5f89..fd6b9bb 100644
--- a/gcc/config/m68k/t-amigaos
+++ b/gcc/config/m68k/t-amigaos
@@ -9,11 +9,11 @@ amigaos.o: $(srcdir)/config/m68k/amigaos.c $(CONFIG_H)
 LIBGCC1 = libgcc1.null
 CROSS_LIBGCC1 = libgcc1.null
 
-# Additional target dependent options for compiling libgcc.a.  This just
-# ensures that we don't compile libgcc* with anything other than a
-# fixed stack.
-
-TARGET_LIBGCC2_CFLAGS = -mfixedstack
+# Additional target dependent options for compiling libgcc.a.
+# 1) Ensure that we don't compile libgcc* with anything other than a fixed
+#    stack.
+# 2) Do not require C standard library headers to compile libgcc.a
+TARGET_LIBGCC2_CFLAGS = -mfixedstack -Dinhibit_libc
 
 MULTILIB_OPTIONS = resident/resident32 m68000/m68020
 MULTILIB_DIRNAMES = libb libb32 . libm020