hashtab.c: Include limits.h, stdint.h, ansidecl.h.

        * hashtab.c: Include limits.h, stdint.h, ansidecl.h.
        (CHAR_BIT): Provide default.
        (struct prime_ent, prime_tab): New.
        (higher_prime_index): Rename from higher_prime_number, return index.
        (htab_mod_1): New.
        (htab_mod, htab_mod_m2): Use it.
        (htab_create_alloc, htab_create_alloc_ex): Store prime index.
        (htab_expand): Likewise.
        * configure.ac: Check for stdint.h.
        (UNSIGNED_64BIT_TYPE): New define and checks to fill it in.
        * config.in, configure: Rebuild.

From-SVN: r81029

libiberty/ChangeLog

+2004-04-22  Richard Henderson  <rth@redhat.com>
+
+	* hashtab.c: Include limits.h, stdint.h, ansidecl.h.
+	(CHAR_BIT): Provide default.
+	(struct prime_ent, prime_tab): New.
+	(higher_prime_index): Rename from higher_prime_number, return index.
+	(htab_mod_1): New.
+	(htab_mod, htab_mod_m2): Use it.
+	(htab_create_alloc, htab_create_alloc_ex): Store prime index.
+	(htab_expand): Likewise.
+	* configure.ac: Check for stdint.h.
+	(UNSIGNED_64BIT_TYPE): New define and checks to fill it in.
+	* config.in, configure: Rebuild.
+
 2004-04-13  Ian Lance Taylor  <ian@wasabisystems.com>
 
 	* strerror.c: Include config.h, and redefine sys_nerr and

libiberty/config.in

@@ -353,6 +353,9 @@
 /* Define to 1 if you can safely include both <sys/time.h> and <time.h>. */
 #undef TIME_WITH_SYS_TIME
 
+/* Define to an unsigned 64-bit type available in the compiler. */
+#undef UNSIGNED_64BIT_TYPE
+
 /* whether byteorder is bigendian */
 #undef WORDS_BIGENDIAN
 

libiberty/configure.ac

@@ -159,13 +159,47 @@ AC_SUBST_FILE(host_makefile_frag)
 # It's OK to check for header files.  Although the compiler may not be
 # able to link anything, it had better be able to at least compile
 # something.
-AC_CHECK_HEADERS(sys/file.h sys/param.h limits.h stdlib.h malloc.h string.h unistd.h strings.h sys/time.h time.h sys/resource.h sys/stat.h sys/mman.h fcntl.h alloca.h sys/pstat.h sys/sysmp.h sys/sysinfo.h machine/hal_sysinfo.h sys/table.h sys/sysctl.h sys/systemcfg.h)
+AC_CHECK_HEADERS(sys/file.h sys/param.h limits.h stdlib.h malloc.h string.h unistd.h strings.h sys/time.h time.h sys/resource.h sys/stat.h sys/mman.h fcntl.h alloca.h sys/pstat.h sys/sysmp.h sys/sysinfo.h machine/hal_sysinfo.h sys/table.h sys/sysctl.h sys/systemcfg.h stdint.h)
 AC_HEADER_SYS_WAIT
 AC_HEADER_TIME
 
 libiberty_AC_DECLARE_ERRNO
 
 AC_CHECK_TYPE(uintptr_t, unsigned long)
+
+# Look for a 64-bit type.
+AC_MSG_CHECKING([for a 64-bit type])
+AC_CACHE_VAL(liberty_cv_uint64,
+[AC_TRY_COMPILE(
+[#ifdef HAVE_STDINT_H
+#include <stdint.h>
+#endif],
+[extern uint64_t foo;],
+liberty_cv_uint64=uint64_t,
+[AC_TRY_COMPILE(
+[#ifdef HAVE_LIMITS_H
+#include <limits.h>
+#endif
+#ifndef CHAR_BIT
+#define CHAR_BIT 8
+#endif],
+[extern char foo[sizeof(long) * CHAR_BIT >= 64 ? 1 : -1];],
+liberty_cv_uint64="unsigned long",
+[AC_TRY_COMPILE(
+[#ifdef HAVE_LIMITS_H
+#include <limits.h>
+#endif
+#ifndef CHAR_BIT
+#define CHAR_BIT 8
+#endif],
+[extern char foo[sizeof(long long) * CHAR_BIT >= 64 ? 1 : -1];],
+liberty_cv_uint64="unsigned long long", liberty_cv_uint64=none)])])])
+AC_MSG_RESULT($liberty_cv_uint64)
+if test "$liberty_cv_uint64" != none; then
+  AC_DEFINE(UNSIGNED_64BIT_TYPE, $liberty_cv_uint64,
+            [Define to an unsigned 64-bit type available in the compiler.])
+fi
+
 # Given the above check, we always have uintptr_t or a fallback
 # definition.  So define HAVE_UINTPTR_T in case any imported code
 # relies on it.