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-rw-r--r--include/libc-internal.h38
1 files changed, 8 insertions, 30 deletions
diff --git a/include/libc-internal.h b/include/libc-internal.h
index 33956d8b1..443b1fc50 100644
--- a/include/libc-internal.h
+++ b/include/libc-internal.h
@@ -67,36 +67,14 @@ extern const char *__uclibc_progname attribute_hidden;
# endif /* IS_IN_libc */
-/* #include <alloca.h> */
-#include <bits/stackinfo.h>
-#if defined(_STACK_GROWS_DOWN)
-# define extend_alloca(buf, len, newlen) \
- (__typeof (buf)) ({ size_t __newlen = (newlen); \
- char *__newbuf = alloca (__newlen); \
- if (__newbuf + __newlen == (char *) buf) \
- len += __newlen; \
- else \
- len = __newlen; \
- __newbuf; })
-#elif defined(_STACK_GROWS_UP)
-# define extend_alloca(buf, len, newlen) \
- (__typeof (buf)) ({ size_t __newlen = (newlen); \
- char *__newbuf = alloca (__newlen); \
- char *__buf = (buf); \
- if (__buf + __newlen == __newbuf) \
- { \
- len += __newlen; \
- __newbuf = __buf; \
- } \
- else \
- len = __newlen; \
- __newbuf; })
-#else
-# warning unknown stack
-# define extend_alloca(buf, len, newlen) \
- alloca (((len) = (newlen)))
-#endif
-
#endif /* __ASSEMBLER__ */
+/* Some people like to build up uClibc with *-elf toolchains, so
+ * a little grease here until we drop '#ifdef __linux__' checks
+ * from our source code.
+ */
+#ifndef __linux__
+# define __linux__ 1
+#endif
+
#endif /* _LIBC_INTERNAL_H */