Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
#ifndef _FEATURES_H
#define _FEATURES_H 1
-/* This macro indicates that the installed library is uClibc. Use
- * __UCLIBC_MAJOR__ and __UCLIBC_MINOR__ to test for the features in
- * specific releases. */
-#define __UCLIBC__ 1
-
-/* Load up the current set of uClibc supported features along
- * with the current uClibc major and minor version numbers.
- * For uClibc release 0.9.26, these numbers would be:
- * #define __UCLIBC_MAJOR__ 0
- * #define __UCLIBC_MINOR__ 9
- * #define __UCLIBC_SUBLEVEL__ 26
- */
-#define __need_uClibc_config_h
-#include <bits/uClibc_config.h>
-#undef __need_uClibc_config_h
-
-/* For uClibc, always optimize for size -- this should disable
- * a lot of expensive inlining...
- * TODO: this is wrong! __OPTIMIZE_SIZE__ is an indicator of
- * gcc -Os compile. We should not mess with compiler inlines.
- * We should instead disable __USE_EXTERN_INLINES unconditionally,
- * or maybe actually audit and test uclibc to work correctly
- * with __USE_EXTERN_INLINES on.
- */
-#define __OPTIMIZE_SIZE__ 1
-
/* These are defined by the user (or the compiler)
to specify the desired environment:
# define _XOPEN_SOURCE 700
# undef _XOPEN_SOURCE_EXTENDED
# define _XOPEN_SOURCE_EXTENDED 1
-# ifdef __UCLIBC_HAS_LFS__
-# undef _LARGEFILE64_SOURCE
-# define _LARGEFILE64_SOURCE 1
-# endif /* __UCLIBC_HAS_LFS__ */
+# undef _LARGEFILE64_SOURCE
+# define _LARGEFILE64_SOURCE 1
# undef _BSD_SOURCE
# define _BSD_SOURCE 1
# undef _SVID_SOURCE
# define _ATFILE_SOURCE 1
#endif
+/* This macro indicates that the installed library is uClibc. Use
+ * __UCLIBC_MAJOR__ and __UCLIBC_MINOR__ to test for the features in
+ * specific releases. */
+#define __UCLIBC__ 1
+
+#ifdef __UCLIBC__
+/* Load up the current set of uClibc supported features along
+ * with the current uClibc major and minor version numbers.
+ * For uClibc release 0.9.26, these numbers would be:
+ * #define __UCLIBC_MAJOR__ 0
+ * #define __UCLIBC_MINOR__ 9
+ * #define __UCLIBC_SUBLEVEL__ 26
+ */
+# define __need_uClibc_config_h
+# include <bits/uClibc_config.h>
+# undef __need_uClibc_config_h
+
+/* For uClibc, always optimize for size -- this should disable
+ * a lot of expensive inlining...
+ * TODO: this is wrong! __OPTIMIZE_SIZE__ is an indicator of
+ * gcc -Os compile. We should not mess with compiler inlines.
+ * We should instead disable __USE_EXTERN_INLINES unconditionally,
+ * or maybe actually audit and test uclibc to work correctly
+ * with __USE_EXTERN_INLINES on.
+ */
+# define __OPTIMIZE_SIZE__ 1
+
+/* disable unsupported features */
+# undef __LDBL_COMPAT
+
+# ifndef __UCLIBC_HAS_FORTIFY__
+# undef _FORTIFY_SOURCE
+# endif
+
+# ifndef __UCLIBC_HAS_THREADS__
+# if defined _REENTRANT || defined _THREAD_SAFE
+# warning requested reentrant code, but thread support was disabled
+# undef _REENTRANT
+# undef _THREAD_SAFE
+# endif
+# endif
+
+# ifndef __UCLIBC_HAS_LFS__
+# undef _LARGEFILE64_SOURCE
+/* NOTE: This is probably incorrect on a 64-bit arch... */
+# if defined _FILE_OFFSET_BITS && _FILE_OFFSET_BITS == 64
+# error It appears you have defined _FILE_OFFSET_BITS=64. Unfortunately, \
+uClibc was built without large file support enabled.
+# endif
+# elif defined __BCC__
+# error BCC does not support LFS, please disable it
+# endif
+#endif /* __UCLIBC__ */
+
/* If nothing (other than _GNU_SOURCE) is defined,
define _BSD_SOURCE and _SVID_SOURCE. */
#if (!defined __STRICT_ANSI__ && !defined _ISOC99_SOURCE && \
# define __USE_REENTRANT 1
#endif
-/* uClibc does not support _FORTIFY_SOURCE */
-#undef _FORTIFY_SOURCE
#if defined _FORTIFY_SOURCE && _FORTIFY_SOURCE > 0 \
&& __GNUC_PREREQ (4, 1) && defined __OPTIMIZE__ && __OPTIMIZE__ > 0
# if _FORTIFY_SOURCE > 1
/* This macro indicates that the installed library is the GNU C Library.
For historic reasons the value now is 6 and this will stay from now
on. The use of this variable is deprecated. */
-# undef __GNU_LIBRARY__
-# define __GNU_LIBRARY__ 6
+/* uClibc WARNING: leave these aligned to the left, don't put a space after '#', else
+ * broken apps could fail the check. */
+#undef __GNU_LIBRARY__
+#define __GNU_LIBRARY__ 6
/* Major and minor version number of the GNU C library package. Use
these macros to test for features in specific releases. */
/* Don't do it, if you want to keep uClibc happy. */
-# define __GLIBC__ 2
-# define __GLIBC_MINOR__ 2
+#define __GLIBC__ 2
+#define __GLIBC_MINOR__ 2
#endif
#define __GLIBC_PREREQ(maj, min) \
__USE_FILE_OFFSET64 but not __USE_LARGEFILE[64]. */
# if defined __USE_FILE_OFFSET64 && !defined __REDIRECT
# define __USE_LARGEFILE 1
+# ifdef __UCLIBC_HAS_LFS__
# define __USE_LARGEFILE64 1
+# endif
# endif
#endif /* !ASSEMBLER */
*/
#if __GNUC_PREREQ (2, 7) && defined __OPTIMIZE__ \
&& !defined __OPTIMIZE_SIZE__ && !defined __NO_INLINE__ \
- && (defined __extern_inline || defined __GNUC_GNU_INLINE__)
+ && (defined __extern_inline || defined __GNUC_GNU_INLINE__ || defined __GNUC_STDC_INLINE__)
# define __USE_EXTERN_INLINES 1
#endif
-
-/* Make sure users large file options agree with uClibc's configuration. */
-#ifndef __UCLIBC_HAS_LFS__
-
-/* If uClibc was built without large file support, output an error if
- * 64-bit file offsets were requested.
- * NOTE: This is probably incorrect on a 64-bit arch... */
-# ifdef __USE_FILE_OFFSET64
-# error It appears you have defined _FILE_OFFSET_BITS=64. Unfortunately, \
-uClibc was built without large file support enabled.
-# endif
-
-/* If uClibc was built without large file support and _LARGEFILE64_SOURCE
- * is defined, undefine it. */
-# ifdef _LARGEFILE64_SOURCE
-# undef _LARGEFILE64_SOURCE
-# undef __USE_LARGEFILE64
-# endif
-
-/* If we're actually building uClibc with large file support,
- * define __USE_LARGEFILE64 and __USE_LARGEFILE. */
-#elif defined _LIBC
-# undef _LARGEFILE_SOURCE
-# undef _LARGEFILE64_SOURCE
-# undef _FILE_OFFSET_BITS
-# undef __USE_LARGEFILE
-# undef __USE_LARGEFILE64
-# undef __USE_FILE_OFFSET64
-# define _LARGEFILE_SOURCE 1
-# define _LARGEFILE64_SOURCE 1
-# define __USE_LARGEFILE 1
-# define __USE_LARGEFILE64 1
-#endif
-
#ifdef _LIBC
+# ifdef __UCLIBC_HAS_LFS__
+# undef _FILE_OFFSET_BITS
+# undef __USE_FILE_OFFSET64
+# endif
# include <libc-internal.h>
#endif
OSDN Git Service
