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[apt.git] / apt-pkg / contrib / macros.h

diff --git a/apt-pkg/contrib/macros.h b/apt-pkg/contrib/macros.h
index c39caf198dfe12a8875fc5bd7558978dd7d073e1..2727fd81fb668f371831e4df56e819b6a498c198 100644 (file)
--- a/apt-pkg/contrib/macros.h
+++ b/apt-pkg/contrib/macros.h
@@ -44,7 +44,7 @@
 #define _boundv(a,b,c) b = _bound(a,b,c)
 #define ABS(a) (((a) < (0)) ?-(a) : (a))
 
-/* Usefull count macro, use on an array of things and it will return the
+/* Useful count macro, use on an array of things and it will return the
    number of items in the array */
 #define _count(a) (sizeof(a)/sizeof(a[0]))
 
@@ -54,35 +54,118 @@
 #define CLRFLAG(v,f)   ((v) &=~FLAG(f))
 #define        CHKFLAG(v,f)    ((v) &  FLAG(f) ? true : false)
 
-// some nice optional GNUC features
-#if __GNUC__ >= 3
-       #define __must_check    __attribute__ ((warn_unused_result))
-       #define __deprecated    __attribute__ ((deprecated))
-       /* likely() and unlikely() can be used to mark boolean expressions
-          as (not) likely true which will help the compiler to optimise */
+#ifdef __GNUC__
+#define APT_GCC_VERSION (__GNUC__ << 8 | __GNUC_MINOR__)
+#else
+#define APT_GCC_VERSION 0
+#endif
+
+/* likely() and unlikely() can be used to mark boolean expressions
+   as (not) likely true which will help the compiler to optimise */
+#if APT_GCC_VERSION >= 0x0300
        #define likely(x)       __builtin_expect (!!(x), 1)
        #define unlikely(x)     __builtin_expect (!!(x), 0)
 #else
-       #define __must_check    /* no warn_unused_result */
-       #define __deprecated    /* no deprecated */
        #define likely(x)       (x)
        #define unlikely(x)     (x)
 #endif
 
+#if APT_GCC_VERSION >= 0x0300
+       #define APT_DEPRECATED  __attribute__ ((deprecated))
+       #define APT_DEPRECATED_MSG(X)   __attribute__ ((deprecated(X)))
+       #define APT_CONST       __attribute__((const))
+       #define APT_PURE        __attribute__((pure))
+       #define APT_NORETURN    __attribute__((noreturn))
+       #define APT_PRINTF(n)   __attribute__((format(printf, n, n + 1)))
+       #define APT_WEAK        __attribute__((weak));
+#else
+       #define APT_DEPRECATED
+       #define APT_DEPRECATED_MSG
+       #define APT_CONST
+       #define APT_PURE
+       #define APT_NORETURN
+       #define APT_PRINTF(n)
+       #define APT_WEAK
+#endif
+
+#if APT_GCC_VERSION > 0x0302
+       #define APT_NONNULL(...)        __attribute__((nonnull(__VA_ARGS__)))
+       #define APT_MUSTCHECK           __attribute__((warn_unused_result))
+#else
+       #define APT_NONNULL(...)
+       #define APT_MUSTCHECK
+#endif
+
+#if APT_GCC_VERSION >= 0x0400
+       #define APT_SENTINEL    __attribute__((sentinel))
+       #define APT_PUBLIC __attribute__ ((visibility ("default")))
+       #define APT_HIDDEN __attribute__ ((visibility ("hidden")))
+#else
+       #define APT_SENTINEL
+       #define APT_PUBLIC
+       #define APT_HIDDEN
+#endif
+
 // cold functions are unlikely() to be called
-#if (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) || __GNUC__ > 4
+#if APT_GCC_VERSION >= 0x0403
+       #define APT_COLD        __attribute__ ((__cold__))
+       #define APT_HOT         __attribute__ ((__hot__))
+#else
+       #define APT_COLD
+       #define APT_HOT
+#endif
+
+#ifndef APT_10_CLEANER_HEADERS
+#if APT_GCC_VERSION >= 0x0300
+       #define __must_check    __attribute__ ((warn_unused_result))
+       #define __deprecated    __attribute__ ((deprecated))
+       #define __attrib_const  __attribute__ ((__const__))
+       #define __like_printf(n)        __attribute__((format(printf, n, n + 1)))
+#else
+       #define __must_check    /* no warn_unused_result */
+       #define __deprecated    /* no deprecated */
+       #define __attrib_const  /* no const attribute */
+       #define __like_printf(n)        /* no like-printf */
+#endif
+#if APT_GCC_VERSION >= 0x0403
        #define __cold  __attribute__ ((__cold__))
+       #define __hot   __attribute__ ((__hot__))
 #else
        #define __cold  /* no cold marker */
+       #define __hot   /* no hot marker */
+#endif
 #endif
 
-#ifdef __GNUG__
-// Methods have a hidden this parameter that is visible to this attribute
-       #define __like_printf_1 __attribute__ ((format (printf, 2, 3)))
-       #define __like_printf_2 __attribute__ ((format (printf, 3, 4)))
+#if __GNUC__ >= 4
+       #define APT_IGNORE_DEPRECATED_PUSH \
+               _Pragma("GCC diagnostic push") \
+               _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"")
+       #define APT_IGNORE_DEPRECATED_POP \
+               _Pragma("GCC diagnostic pop")
+       #define APT_IGNORE_DEPRECATED(XXX) \
+               APT_IGNORE_DEPRECATED_PUSH \
+               XXX \
+               APT_IGNORE_DEPRECATED_POP
 #else
-       #define __like_printf_1 /* no like-printf */
-       #define __like_printf_2 /* no like-printf */
+       #define APT_IGNORE_DEPRECATED_PUSH
+       #define APT_IGNORE_DEPRECATED_POP
+       #define APT_IGNORE_DEPRECATED(XXX) XXX
 #endif
 
+#if __cplusplus >= 201103L
+       #define APT_OVERRIDE override
+#else
+       #define APT_OVERRIDE /* no c++11 standard */
+#endif
+
+// These lines are extracted by the makefiles and the buildsystem
+// Increasing MAJOR or MINOR results in the need of recompiling all
+// reverse-dependencies of libapt-pkg against the new SONAME.
+// Non-ABI-Breaks should only increase RELEASE number.
+// See also buildlib/libversion.mak
+#define APT_PKG_MAJOR 5
+#define APT_PKG_MINOR 0
+#define APT_PKG_RELEASE 0
+#define APT_PKG_ABI ((APT_PKG_MAJOR * 100) + APT_PKG_MINOR)
+
 #endif