From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001
From: upstream source tree <ports@midipix.org>
Date: Sun, 15 Mar 2015 20:14:05 -0400
Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified
 gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream
 tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.
---
 libjava/classpath/m4/gcc_attribute.m4 | 133 ++++++++++++++++++++++++++++++++++
 1 file changed, 133 insertions(+)
 create mode 100644 libjava/classpath/m4/gcc_attribute.m4

(limited to 'libjava/classpath/m4/gcc_attribute.m4')

diff --git a/libjava/classpath/m4/gcc_attribute.m4 b/libjava/classpath/m4/gcc_attribute.m4
new file mode 100644
index 000000000..f332d21a6
--- /dev/null
+++ b/libjava/classpath/m4/gcc_attribute.m4
@@ -0,0 +1,133 @@
+dnl CACHED_TRY_COMPILE(<description>,<cachevar>,<include>,<program>,<ifyes>,<ifno>)
+AC_DEFUN([CACHED_TRY_COMPILE],[
+ AC_MSG_CHECKING($1)
+ AC_CACHE_VAL($2,[
+  AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[$3]], [[$4]])],[$2=yes],[$2=no])
+ ])
+ if test "x$$2" = xyes; then
+  true
+  $5
+ else
+  true
+  $6
+ fi
+])
+
+dnl GCC_ATTRIBUTE(<short-label>,<cachevar>,<func-params>,<attribute>,<HAVE>,<desc>,[<true-cmds>],[<false-cmds>])
+AC_DEFUN([GCC_ATTRIBUTE],[
+  CACHED_TRY_COMPILE(__attribute__(($1)),gcc_cv_c_gcc_attribute_$2,,
+   [extern int testfunction($3) __attribute__(($4))],
+   AC_MSG_RESULT(yes)
+   AC_DEFINE(HAVE_GNUC25_$5,,$6)
+   $7,
+   AC_MSG_RESULT(no)
+   $8)
+])
+
+
+AC_DEFUN([GCC_ATTRIBUTE_SUPPORTED],[
+ GCC_ATTRIBUTE([,,],supported,[int x],[,,],ATTRIB,[Define if function attributes a la GCC 2.5 and higher are available.])
+ AH_BOTTOM([/* GNU C attributes. */
+#ifndef FUNCATTR
+#ifdef HAVE_GNUC25_ATTRIB
+#define FUNCATTR(x) __attribute__(x)
+#else
+#define FUNCATTR(x)
+#endif
+#endif])
+
+])
+AC_DEFUN([GCC_ATTRIBUTE_CONST],[
+ AC_REQUIRE([GCC_ATTRIBUTE_SUPPORTED])
+ GCC_ATTRIBUTE(const,const,[int x],const,CONST,[Define if constant functions a la GCC 2.5 and higher are available.])
+ AH_BOTTOM([/* GNU C constant functions, or null. */
+#ifndef ATTRCONST
+#ifdef HAVE_GNUC25_CONST
+#define ATTRCONST const
+#else
+#define ATTRCONST
+#endif
+#endif
+#ifndef CONSTANT
+#define CONSTANT FUNCATTR((ATTRCONST))
+#endif])
+])
+AC_DEFUN([GCC_ATTRIBUTE_NORETURN],[
+ AC_REQUIRE([GCC_ATTRIBUTE_SUPPORTED])
+ GCC_ATTRIBUTE(noreturn,noreturn,[int x],noreturn,NORETURN,[Define if nonreturning functions a la GCC 2.5 and higher are available.])
+ AH_BOTTOM([/* GNU C nonreturning functions, or null. */
+#ifndef ATTRNORETURN
+#ifdef HAVE_GNUC25_NORETURN
+#define ATTRNORETURN noreturn
+#else /* ! HAVE_GNUC25_NORETURN */
+#define ATTRNORETURN
+#endif /* HAVE_GNUC25_NORETURN */
+#endif /* ATTRNORETURN */
+#ifndef NONRETURNING
+#define NONRETURNING FUNCATTR((ATTRNORETURN))
+#endif /* NONRETURNING */])
+])
+AC_DEFUN([GCC_ATTRIBUTE_UNUSED],[
+ AC_REQUIRE([GCC_ATTRIBUTE_SUPPORTED])
+ GCC_ATTRIBUTE(unused,unused,[int x],unused,UNUSED,[Define if unused variables la GCC 2.5 and higher are available.])
+ AH_BOTTOM([/* GNU C unused functions, or null. */
+#ifndef ATTRUNUSED
+#ifdef HAVE_GNUC25_UNUSED
+#define ATTRUNUSED unused
+#else
+#define ATTRUNUSED
+#endif
+#endif
+#ifndef UNUSED
+#define UNUSED FUNCATTR((ATTRUNUSED))
+#endif])
+])
+AC_DEFUN([GCC_ATTRIBUTE_FORMAT],[
+ AC_REQUIRE([GCC_ATTRIBUTE_SUPPORTED])
+ GCC_ATTRIBUTE(format...,format,[char *y, ...],[format(printf,1,2)],PRINTFFORMAT,[Define if printf-format argument lists a la GCC are available.])
+ AH_BOTTOM([/* GNU C printf formats, or null. */
+#ifndef ATTRPRINTF
+#ifdef HAVE_GNUC25_PRINTFFORMAT
+#define ATTRPRINTF(si,tc) format(printf,si,tc)
+#else
+#define ATTRPRINTF(si,tc)
+#endif
+#endif
+#ifndef PRINTFFORMAT
+#define PRINTFFORMAT(si,tc) FUNCATTR((ATTRPRINTF(si,tc)))
+#endif
+
+#ifndef NONRETURNPRINTFFORMAT
+#define NONRETURNPRINTFFORMAT(si,tc) FUNCATTR((ATTRPRINTF(si,tc),ATTRNORETURN))
+#endif])
+])
+AC_DEFUN([GCC_ATTRIBUTE_ALWAYS_INLINE],[
+ AC_REQUIRE([GCC_ATTRIBUTE_SUPPORTED])
+ GCC_ATTRIBUTE(always_inline,always_inline,[int x],always_inline,ALWAYS_INLINE,[Define if unconditional inlining of functions a la GCC 3.1 and higher are available.])
+ AH_BOTTOM([/* GNU C constant functions, or null. */
+#ifndef ATTRALWAYS_INLINE
+#ifdef HAVE_GNUC25_ALWAYS_INLINE
+#define ATTRALWAYS_INLINE always_inline
+#else
+#define ATTRALWAYS_INLINE
+#endif
+#endif
+#ifndef ALWAYS_INLINE
+#define ALWAYS_INLINE FUNCATTR((ATTRALWAYS_INLINE))
+#endif])
+])
+AC_DEFUN([GCC_ATTRIBUTE_PACKED],[
+ AC_REQUIRE([GCC_ATTRIBUTE_SUPPORTED])
+ GCC_ATTRIBUTE(packed,packed,[int x],packed,PACKED,[Define if packing of struct members a la GCC 2.5 and higher is available.])
+ AH_BOTTOM([/* GNU C constant functions, or null. */
+#ifndef ATTRPACKED
+#ifdef HAVE_GNUC25_PACKED
+#define ATTRPACKED packed
+#else
+#define ATTRPACKED
+#endif
+#endif
+#ifndef PACKED
+#define PACKED FUNCATTR((ATTRPACKED))
+#endif])
+])
-- 
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