+/* Definitions used by the pexecute routine. */
+
+#define PEXECUTE_FIRST 1
+#define PEXECUTE_LAST 2
+#define PEXECUTE_ONE (PEXECUTE_FIRST + PEXECUTE_LAST)
+#define PEXECUTE_SEARCH 4
+#define PEXECUTE_VERBOSE 8
+
+/* Execute a program. */
+
+extern int pexecute PARAMS ((const char *, char * const *, const char *,
+ const char *, char **, char **, int));
+
+/* Wait for pexecute to finish. */
+
+extern int pwait PARAMS ((int, int *, int));
+
+/* Like sprintf but provides a pointer to malloc'd storage, which must
+ be freed by the caller. */
+
+extern int asprintf PARAMS ((char **, const char *, ...)) ATTRIBUTE_PRINTF_2;
+
+/* Like vsprintf but provides a pointer to malloc'd storage, which
+ must be freed by the caller. */
+
+extern int vasprintf PARAMS ((char **, const char *, va_list))
+ ATTRIBUTE_PRINTF(2,0);
+
+#define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))
+
+/* Drastically simplified alloca configurator. If we're using GCC,
+ we use __builtin_alloca; otherwise we use the C alloca. The C
+ alloca is always available. You can override GCC by defining
+ USE_C_ALLOCA yourself. The canonical autoconf macro C_ALLOCA is
+ also set/unset as it is often used to indicate whether code needs
+ to call alloca(0). */
+extern PTR C_alloca PARAMS((size_t));
+#undef alloca
+#if GCC_VERSION >= 2000 && !defined USE_C_ALLOCA
+# define alloca(x) __builtin_alloca(x)
+# undef C_ALLOCA
+# define ASTRDUP(X) \
+ (__extension__ ({ const char *const libiberty_optr = (X); \
+ const unsigned long libiberty_len = strlen (libiberty_optr) + 1; \
+ char *const libiberty_nptr = alloca (libiberty_len); \
+ (char *) memcpy (libiberty_nptr, libiberty_optr, libiberty_len); }))
+#else
+# define alloca(x) C_alloca(x)
+# undef USE_C_ALLOCA
+# define USE_C_ALLOCA 1
+# undef C_ALLOCA
+# define C_ALLOCA 1
+extern const char *libiberty_optr;
+extern char *libiberty_nptr;
+extern unsigned long libiberty_len;
+# define ASTRDUP(X) \
+ (libiberty_optr = (X), \
+ libiberty_len = strlen (libiberty_optr) + 1, \
+ libiberty_nptr = alloca (libiberty_len), \
+ (char *) memcpy (libiberty_nptr, libiberty_optr, libiberty_len))
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+