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| author | Richard Henderson <rth@redhat.com> | 2004-04-22 10:35:44 -0700 |
|---|---|---|
| committer | Richard Henderson <rth@gcc.gnu.org> | 2004-04-22 10:35:44 -0700 |
| commit | 9bf3c9cc6d3867523706ac78dc43c299eac2fba1 (patch) | |
| tree | 733f68fca344b1fa54470ad459e7919a521e2cfb /libiberty/configure.ac | |
| parent | a95cd5a0d46e37922e5a0c5eb4cd4d22bc21da29 (diff) | |
| download | gcc-9bf3c9cc6d3867523706ac78dc43c299eac2fba1.tar.gz | |
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
Diffstat (limited to 'libiberty/configure.ac')
| -rw-r--r-- | libiberty/configure.ac | 36 |
1 files changed, 35 insertions, 1 deletions
diff --git a/libiberty/configure.ac b/libiberty/configure.ac index 39bfb51e416..124558a20a5 100644 --- a/libiberty/configure.ac +++ b/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. |