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| author | Arnold D. Robbins <arnold@skeeve.com> | 2010-07-16 14:49:57 +0300 |
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| committer | Arnold D. Robbins <arnold@skeeve.com> | 2010-07-16 14:49:57 +0300 |
| commit | 6a2caf2157d87b4b582b2494bdd7d6a688dd0b1f (patch) | |
| tree | 9a2862cc11be4832f188cfbdce175120ceba5024 /m4/longlong.m4 | |
| parent | 315bd501ca696bc3e3c938b4604d8dac7a6f512f (diff) | |
| download | egawk-6a2caf2157d87b4b582b2494bdd7d6a688dd0b1f.tar.gz egawk-6a2caf2157d87b4b582b2494bdd7d6a688dd0b1f.tar.bz2 egawk-6a2caf2157d87b4b582b2494bdd7d6a688dd0b1f.zip | |
Move to gawk-3.1.6.
Diffstat (limited to 'm4/longlong.m4')
| -rw-r--r-- | m4/longlong.m4 | 43 |
1 files changed, 34 insertions, 9 deletions
diff --git a/m4/longlong.m4 b/m4/longlong.m4 index 7b399e01..3716c09f 100644 --- a/m4/longlong.m4 +++ b/m4/longlong.m4 @@ -1,21 +1,46 @@ -# longlong.m4 serial 5 -dnl Copyright (C) 1999-2004 Free Software Foundation, Inc. +# longlong.m4 serial 8 +dnl Copyright (C) 1999-2006 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl From Paul Eggert. -# Define HAVE_LONG_LONG if 'long long' works. +# Define HAVE_LONG_LONG_INT if 'long long int' works. +# This fixes a bug in Autoconf 2.60, but can be removed once we +# assume 2.61 everywhere. +# Note: If the type 'long long int' exists but is only 32 bits large +# (as on some very old compilers), AC_TYPE_LONG_LONG_INT will not be +# defined. In this case you can treat 'long long int' like 'long int'. + +AC_DEFUN([AC_TYPE_LONG_LONG_INT], +[ + AC_CACHE_CHECK([for long long int], [ac_cv_type_long_long_int], + [AC_LINK_IFELSE( + [AC_LANG_PROGRAM( + [[long long int ll = 9223372036854775807ll; + long long int nll = -9223372036854775807LL; + typedef int a[((-9223372036854775807LL < 0 + && 0 < 9223372036854775807ll) + ? 1 : -1)]; + int i = 63;]], + [[long long int llmax = 9223372036854775807ll; + return ((ll << 63) | (ll >> 63) | (ll < i) | (ll > i) + | (llmax / ll) | (llmax % ll));]])], + [ac_cv_type_long_long_int=yes], + [ac_cv_type_long_long_int=no])]) + if test $ac_cv_type_long_long_int = yes; then + AC_DEFINE([HAVE_LONG_LONG_INT], 1, + [Define to 1 if the system has the type `long long int'.]) + fi +]) + +# This macro is obsolescent and should go away soon. AC_DEFUN([gl_AC_TYPE_LONG_LONG], [ - AC_CACHE_CHECK([for long long], ac_cv_type_long_long, - [AC_TRY_LINK([long long ll = 1LL; int i = 63;], - [long long llmax = (long long) -1; - return ll << i | ll >> i | llmax / ll | llmax % ll;], - ac_cv_type_long_long=yes, - ac_cv_type_long_long=no)]) + AC_REQUIRE([AC_TYPE_LONG_LONG_INT]) + ac_cv_type_long_long=$ac_cv_type_long_long_int if test $ac_cv_type_long_long = yes; then AC_DEFINE(HAVE_LONG_LONG, 1, [Define if you have the 'long long' type.]) |