mirror of
https://git.postgresql.org/git/postgresql.git
synced 2025-03-19 20:00:51 +08:00
Factor out the code that detects the long long int snprintf format into a
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
parent
c0276244b1
commit
955a1f81a7
@ -1,5 +1,5 @@
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# Macros to detect C compiler features
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# $Header: /cvsroot/pgsql/config/c-compiler.m4,v 1.5 2002/03/29 17:32:53 petere Exp $
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# $Header: /cvsroot/pgsql/config/c-compiler.m4,v 1.6 2003/01/28 21:57:12 petere Exp $
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# PGAC_C_SIGNED
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@ -54,9 +54,11 @@ main() {
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}],
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[Ac_cachevar=yes],
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[Ac_cachevar=no],
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[Ac_cachevar=no
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dnl We will do better here with Autoconf 2.50
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AC_MSG_WARN([64 bit arithmetic disabled when cross-compiling])])])
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[# If cross-compiling, check the size reported by the compiler and
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# trust that the arithmetic works.
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AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([], [sizeof($1) == 8])],
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Ac_cachevar=yes,
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Ac_cachevar=no)])])
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Ac_define=$Ac_cachevar
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if test x"$Ac_cachevar" = xyes ; then
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@ -1,5 +1,5 @@
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# Macros that test various C library quirks
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# $Header: /cvsroot/pgsql/config/c-library.m4,v 1.14 2002/07/27 20:10:03 petere Exp $
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# $Header: /cvsroot/pgsql/config/c-library.m4,v 1.15 2003/01/28 21:57:12 petere Exp $
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# PGAC_VAR_INT_TIMEZONE
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@ -86,3 +86,51 @@ if test x"$pgac_cv_func_posix_signals" = xyes ; then
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fi
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HAVE_POSIX_SIGNALS=$pgac_cv_func_posix_signals
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AC_SUBST(HAVE_POSIX_SIGNALS)])# PGAC_FUNC_POSIX_SIGNALS
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# PGAC_FUNC_SNPRINTF_LONG_LONG_INT_FORMAT
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# ---------------------------------------
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# Determine which format snprintf uses for long long int. We handle
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# %lld, %qd, %I64d. The result is in shell variable
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# LONG_LONG_INT_FORMAT.
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AC_DEFUN([PGAC_FUNC_SNPRINTF_LONG_LONG_INT_FORMAT],
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[AC_MSG_CHECKING([snprintf format for long long int])
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AC_CACHE_VAL(pgac_cv_snprintf_long_long_int_format,
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[for pgac_format in '%lld' '%qd' '%I64d'; do
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AC_TRY_RUN([#include <stdio.h>
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typedef long long int int64;
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#define INT64_FORMAT "$pgac_format"
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int64 a = 20000001;
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int64 b = 40000005;
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int does_int64_snprintf_work()
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{
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int64 c;
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char buf[100];
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if (sizeof(int64) != 8)
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return 0; /* doesn't look like the right size */
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c = a * b;
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snprintf(buf, 100, INT64_FORMAT, c);
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if (strcmp(buf, "800000140000005") != 0)
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return 0; /* either multiply or snprintf is busted */
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return 1;
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}
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main() {
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exit(! does_int64_snprintf_work());
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}],
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[pgac_cv_snprintf_long_long_int_format=$pgac_format; break],
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[],
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[pgac_cv_snprintf_long_long_int_format=cross; break])
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done])dnl AC_CACHE_VAL
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LONG_LONG_INT_FORMAT=''
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case $pgac_cv_snprintf_long_long_int_format in
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cross) AC_MSG_RESULT([cannot test (not on host machine)]);;
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?*) AC_MSG_RESULT([$pgac_cv_snprintf_long_long_int_format])
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LONG_LONG_INT_FORMAT=$pgac_cv_snprintf_long_long_int_format;;
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*) AC_MSG_RESULT(none);;
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esac])# PGAC_FUNC_SNPRINTF_LONG_LONG_INT_FORMAT
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211
configure
vendored
211
configure
vendored
@ -11817,9 +11817,47 @@ if test "${pgac_cv_type_long_int_64+set}" = set; then
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echo $ECHO_N "(cached) $ECHO_C" >&6
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else
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if test "$cross_compiling" = yes; then
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pgac_cv_type_long_int_64=no
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{ echo "$as_me:$LINENO: WARNING: 64 bit arithmetic disabled when cross-compiling" >&5
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echo "$as_me: WARNING: 64 bit arithmetic disabled when cross-compiling" >&2;}
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# If cross-compiling, check the size reported by the compiler and
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# trust that the arithmetic works.
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cat >conftest.$ac_ext <<_ACEOF
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#line $LINENO "configure"
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#include "confdefs.h"
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#ifdef F77_DUMMY_MAIN
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# ifdef __cplusplus
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extern "C"
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# endif
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int F77_DUMMY_MAIN() { return 1; }
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#endif
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int
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main ()
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{
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static int test_array [1 - 2 * !(sizeof(long int) == 8)];
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test_array [0] = 0
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;
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return 0;
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}
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_ACEOF
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rm -f conftest.$ac_objext
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if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
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(eval $ac_compile) 2>&5
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ac_status=$?
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); } &&
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{ ac_try='test -s conftest.$ac_objext'
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{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); }; }; then
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pgac_cv_type_long_int_64=yes
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else
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echo "$as_me: failed program was:" >&5
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cat conftest.$ac_ext >&5
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pgac_cv_type_long_int_64=no
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fi
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rm -f conftest.$ac_objext conftest.$ac_ext
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else
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cat >conftest.$ac_ext <<_ACEOF
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#line $LINENO "configure"
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@ -11893,9 +11931,47 @@ if test "${pgac_cv_type_long_long_int_64+set}" = set; then
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echo $ECHO_N "(cached) $ECHO_C" >&6
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else
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if test "$cross_compiling" = yes; then
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pgac_cv_type_long_long_int_64=no
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{ echo "$as_me:$LINENO: WARNING: 64 bit arithmetic disabled when cross-compiling" >&5
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echo "$as_me: WARNING: 64 bit arithmetic disabled when cross-compiling" >&2;}
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# If cross-compiling, check the size reported by the compiler and
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# trust that the arithmetic works.
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cat >conftest.$ac_ext <<_ACEOF
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#line $LINENO "configure"
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#include "confdefs.h"
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#ifdef F77_DUMMY_MAIN
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# ifdef __cplusplus
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extern "C"
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# endif
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int F77_DUMMY_MAIN() { return 1; }
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#endif
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int
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main ()
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{
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static int test_array [1 - 2 * !(sizeof(long long int) == 8)];
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test_array [0] = 0
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;
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return 0;
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}
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_ACEOF
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rm -f conftest.$ac_objext
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if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
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(eval $ac_compile) 2>&5
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ac_status=$?
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); } &&
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{ ac_try='test -s conftest.$ac_objext'
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{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); }; }; then
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pgac_cv_type_long_long_int_64=yes
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else
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echo "$as_me: failed program was:" >&5
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cat conftest.$ac_ext >&5
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pgac_cv_type_long_long_int_64=no
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fi
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rm -f conftest.$ac_objext conftest.$ac_ext
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else
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cat >conftest.$ac_ext <<_ACEOF
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#line $LINENO "configure"
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@ -12012,25 +12088,29 @@ rm -f conftest.$ac_objext conftest.$ac_ext
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fi
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# If we found "long int" is 64 bits, assume snprintf handles it. If
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# we found we need to use "long long int", better check. We cope with
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# snprintfs that use either %lld, %qd, or %I64d as the format. If
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# neither works, fall back to our own snprintf emulation (which we
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# know uses %lld).
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if test x"$HAVE_LONG_LONG_INT_64" = xyes ; then
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if test "$HAVE_LONG_LONG_INT_64" = yes ; then
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if test $pgac_need_repl_snprintf = no; then
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echo "$as_me:$LINENO: checking whether snprintf handles 'long long int' as %lld" >&5
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echo $ECHO_N "checking whether snprintf handles 'long long int' as %lld... $ECHO_C" >&6
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if test "$cross_compiling" = yes; then
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echo "$as_me:$LINENO: result: cannot test (not on host machine)" >&5
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echo "${ECHO_T}cannot test (not on host machine)" >&6
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# Force usage of our own snprintf, since we cannot test foreign snprintf
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pgac_need_repl_snprintf=yes
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INT64_FORMAT='"%lld"'
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echo "$as_me:$LINENO: checking snprintf format for long long int" >&5
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echo $ECHO_N "checking snprintf format for long long int... $ECHO_C" >&6
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if test "${pgac_cv_snprintf_long_long_int_format+set}" = set; then
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echo $ECHO_N "(cached) $ECHO_C" >&6
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else
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for pgac_format in '%lld' '%qd' '%I64d'; do
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if test "$cross_compiling" = yes; then
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pgac_cv_snprintf_long_long_int_format=cross; break
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else
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cat >conftest.$ac_ext <<_ACEOF
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#line $LINENO "configure"
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#include "confdefs.h"
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#include <stdio.h>
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typedef long long int int64;
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#define INT64_FORMAT "%lld"
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#define INT64_FORMAT "$pgac_format"
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int64 a = 20000001;
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int64 b = 40000005;
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@ -12064,91 +12144,38 @@ if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
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ac_status=$?
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); }; }; then
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echo "$as_me:$LINENO: result: yes" >&5
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echo "${ECHO_T}yes" >&6
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INT64_FORMAT='"%lld"'
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pgac_cv_snprintf_long_long_int_format=$pgac_format; break
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else
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echo "$as_me: program exited with status $ac_status" >&5
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echo "$as_me: failed program was:" >&5
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cat conftest.$ac_ext >&5
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( exit $ac_status )
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echo "$as_me:$LINENO: result: no" >&5
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echo "${ECHO_T}no" >&6
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echo "$as_me:$LINENO: checking whether snprintf handles 'long long int' as %qd" >&5
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echo $ECHO_N "checking whether snprintf handles 'long long int' as %qd... $ECHO_C" >&6
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if test "$cross_compiling" = yes; then
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echo "$as_me:$LINENO: result: cannot test (not on host machine)" >&5
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echo "${ECHO_T}cannot test (not on host machine)" >&6
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# Force usage of our own snprintf, since we cannot test foreign snprintf
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pgac_need_repl_snprintf=yes
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INT64_FORMAT='"%lld"'
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else
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cat >conftest.$ac_ext <<_ACEOF
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#line $LINENO "configure"
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#include "confdefs.h"
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#include <stdio.h>
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typedef long long int int64;
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#define INT64_FORMAT "%qd"
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int64 a = 20000001;
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int64 b = 40000005;
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int does_int64_snprintf_work()
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{
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int64 c;
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char buf[100];
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if (sizeof(int64) != 8)
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return 0; /* doesn't look like the right size */
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c = a * b;
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snprintf(buf, 100, INT64_FORMAT, c);
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if (strcmp(buf, "800000140000005") != 0)
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return 0; /* either multiply or snprintf is busted */
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return 1;
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}
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main() {
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exit(! does_int64_snprintf_work());
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}
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_ACEOF
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rm -f conftest$ac_exeext
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if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
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(eval $ac_link) 2>&5
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ac_status=$?
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); } && { ac_try='./conftest$ac_exeext'
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{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); }; }; then
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echo "$as_me:$LINENO: result: yes" >&5
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echo "${ECHO_T}yes" >&6
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INT64_FORMAT='"%qd"'
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else
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echo "$as_me: program exited with status $ac_status" >&5
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echo "$as_me: failed program was:" >&5
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cat conftest.$ac_ext >&5
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( exit $ac_status )
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echo "$as_me:$LINENO: result: no" >&5
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echo "${ECHO_T}no" >&6
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# Force usage of our own snprintf, since system snprintf is broken
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pgac_need_repl_snprintf=yes
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INT64_FORMAT='"%lld"'
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fi
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rm -f core core.* *.core conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
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fi
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done
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fi
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rm -f core core.* *.core conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
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fi
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LONG_LONG_INT_FORMAT=''
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case $pgac_cv_snprintf_long_long_int_format in
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cross) echo "$as_me:$LINENO: result: cannot test (not on host machine)" >&5
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echo "${ECHO_T}cannot test (not on host machine)" >&6;;
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?*) echo "$as_me:$LINENO: result: $pgac_cv_snprintf_long_long_int_format" >&5
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echo "${ECHO_T}$pgac_cv_snprintf_long_long_int_format" >&6
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LONG_LONG_INT_FORMAT=$pgac_cv_snprintf_long_long_int_format;;
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*) echo "$as_me:$LINENO: result: none" >&5
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echo "${ECHO_T}none" >&6;;
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esac
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if test "$LONG_LONG_INT_FORMAT" = ""; then
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# Force usage of our own snprintf, since system snprintf is broken
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pgac_need_repl_snprintf=yes
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LONG_LONG_INT_FORMAT='%lld'
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fi
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else
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# here if we previously decided we needed to use our own snprintf
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INT64_FORMAT='"%lld"'
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# Here if we previously decided we needed to use our own snprintf
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LONG_LONG_INT_FORMAT='%lld'
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fi
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INT64_FORMAT="\"$LONG_LONG_INT_FORMAT\""
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else
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# Here if we are not using 'long long int' at all
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INT64_FORMAT='"%ld"'
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97
configure.in
97
configure.in
@ -1,5 +1,5 @@
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dnl Process this file with autoconf to produce a configure script.
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dnl $Header: /cvsroot/pgsql/configure.in,v 1.233 2003/01/25 05:19:45 tgl Exp $
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dnl $Header: /cvsroot/pgsql/configure.in,v 1.234 2003/01/28 21:57:11 petere Exp $
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dnl
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dnl Developers, please strive to achieve this order:
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dnl
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@ -970,90 +970,25 @@ long long int foo = INT64CONST(0x1234567890123456);
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fi
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dnl If we found "long int" is 64 bits, assume snprintf handles it.
|
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dnl If we found we need to use "long long int", better check.
|
||||
dnl We cope with snprintfs that use either %lld or %qd as the format.
|
||||
dnl If neither works, fall back to our own snprintf emulation (which we
|
||||
dnl know uses %lld).
|
||||
# If we found "long int" is 64 bits, assume snprintf handles it. If
|
||||
# we found we need to use "long long int", better check. We cope with
|
||||
# snprintfs that use either %lld, %qd, or %I64d as the format. If
|
||||
# neither works, fall back to our own snprintf emulation (which we
|
||||
# know uses %lld).
|
||||
|
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if test x"$HAVE_LONG_LONG_INT_64" = xyes ; then
|
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if test "$HAVE_LONG_LONG_INT_64" = yes ; then
|
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if test $pgac_need_repl_snprintf = no; then
|
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AC_MSG_CHECKING(whether snprintf handles 'long long int' as %lld)
|
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AC_TRY_RUN([#include <stdio.h>
|
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typedef long long int int64;
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#define INT64_FORMAT "%lld"
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|
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int64 a = 20000001;
|
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int64 b = 40000005;
|
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int does_int64_snprintf_work()
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{
|
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int64 c;
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char buf[100];
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|
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if (sizeof(int64) != 8)
|
||||
return 0; /* doesn't look like the right size */
|
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|
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c = a * b;
|
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snprintf(buf, 100, INT64_FORMAT, c);
|
||||
if (strcmp(buf, "800000140000005") != 0)
|
||||
return 0; /* either multiply or snprintf is busted */
|
||||
return 1;
|
||||
}
|
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main() {
|
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exit(! does_int64_snprintf_work());
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}],
|
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[ AC_MSG_RESULT(yes)
|
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INT64_FORMAT='"%lld"'
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],
|
||||
[ AC_MSG_RESULT(no)
|
||||
AC_MSG_CHECKING(whether snprintf handles 'long long int' as %qd)
|
||||
AC_TRY_RUN([#include <stdio.h>
|
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typedef long long int int64;
|
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#define INT64_FORMAT "%qd"
|
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|
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int64 a = 20000001;
|
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int64 b = 40000005;
|
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|
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int does_int64_snprintf_work()
|
||||
{
|
||||
int64 c;
|
||||
char buf[100];
|
||||
|
||||
if (sizeof(int64) != 8)
|
||||
return 0; /* doesn't look like the right size */
|
||||
|
||||
c = a * b;
|
||||
snprintf(buf, 100, INT64_FORMAT, c);
|
||||
if (strcmp(buf, "800000140000005") != 0)
|
||||
return 0; /* either multiply or snprintf is busted */
|
||||
return 1;
|
||||
}
|
||||
main() {
|
||||
exit(! does_int64_snprintf_work());
|
||||
}],
|
||||
[ AC_MSG_RESULT(yes)
|
||||
INT64_FORMAT='"%qd"'
|
||||
],
|
||||
[ AC_MSG_RESULT(no)
|
||||
# Force usage of our own snprintf, since system snprintf is broken
|
||||
pgac_need_repl_snprintf=yes
|
||||
INT64_FORMAT='"%lld"'
|
||||
],
|
||||
[ AC_MSG_RESULT([cannot test (not on host machine)])
|
||||
# Force usage of our own snprintf, since we cannot test foreign snprintf
|
||||
pgac_need_repl_snprintf=yes
|
||||
INT64_FORMAT='"%lld"'
|
||||
]) ],
|
||||
[ AC_MSG_RESULT([cannot test (not on host machine)])
|
||||
# Force usage of our own snprintf, since we cannot test foreign snprintf
|
||||
pgac_need_repl_snprintf=yes
|
||||
INT64_FORMAT='"%lld"'
|
||||
])
|
||||
PGAC_FUNC_SNPRINTF_LONG_LONG_INT_FORMAT
|
||||
if test "$LONG_LONG_INT_FORMAT" = ""; then
|
||||
# Force usage of our own snprintf, since system snprintf is broken
|
||||
pgac_need_repl_snprintf=yes
|
||||
LONG_LONG_INT_FORMAT='%lld'
|
||||
fi
|
||||
else
|
||||
# here if we previously decided we needed to use our own snprintf
|
||||
INT64_FORMAT='"%lld"'
|
||||
# Here if we previously decided we needed to use our own snprintf
|
||||
LONG_LONG_INT_FORMAT='%lld'
|
||||
fi
|
||||
INT64_FORMAT="\"$LONG_LONG_INT_FORMAT\""
|
||||
else
|
||||
# Here if we are not using 'long long int' at all
|
||||
INT64_FORMAT='"%ld"'
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user