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Factor out the code that detects the long long int snprintf format into a

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separate macro.  Also add support for %I64d which is the way on Windows.

The code that checks for the 64-bit int type now gives more reasonable
results when cross-compiling: In that case we just take the compiler's
information and trust that the arithmetic works.  Disabling int64 is too
pessimistic.
This commit is contained in:
Peter Eisentraut
2003-01-28 21:57:12 +00:00
parent c0276244b1
commit 955a1f81a7
4 changed files with 190 additions and 178 deletions
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10
config/c-compiler.m4
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@ -1,5 +1,5 @@
# Macros to detect C compiler features
# $Header: /cvsroot/pgsql/config/c-compiler.m4,v 1.5 2002/03/29 17:32:53 petere Exp $
# $Header: /cvsroot/pgsql/config/c-compiler.m4,v 1.6 2003/01/28 21:57:12 petere Exp $
# PGAC_C_SIGNED
@ -54,9 +54,11 @@ main() {
}],
[Ac_cachevar=yes],
[Ac_cachevar=no],
[Ac_cachevar=no
dnl We will do better here with Autoconf 2.50
AC_MSG_WARN([64 bit arithmetic disabled when cross-compiling])])])
[# If cross-compiling, check the size reported by the compiler and
# trust that the arithmetic works.
AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([], [sizeof($1) == 8])],
Ac_cachevar=yes,
Ac_cachevar=no)])])
Ac_define=$Ac_cachevar
if test x"$Ac_cachevar" = xyes ; then