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| author | Matthias Klose <doko@ubuntu.com> | 2012-03-15 18:31:06 (GMT) |
|---|---|---|
| committer | Matthias Klose <doko@ubuntu.com> | 2012-03-15 18:31:06 (GMT) |
| commit | 3b739b149b4bdb85ed593b0d0a0c9d2790dbd988 (patch) | |
| tree | ba7edeb1738a7b634e5f1c54a2968d29400566ee /configure.ac | |
| parent | 93a0ef16c939581fb366897d2f07c395601f8ddf (diff) | |
| download | cpython-3b739b149b4bdb85ed593b0d0a0c9d2790dbd988.zip cpython-3b739b149b4bdb85ed593b0d0a0c9d2790dbd988.tar.gz cpython-3b739b149b4bdb85ed593b0d0a0c9d2790dbd988.tar.bz2 | |
- Issue #14324: Fix configure tests for cross builds.
when using gcc, use a compilation test for the cross build check for long long format.
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/configure.ac b/configure.ac index a38a5cc..2bcbedf 100644 --- a/configure.ac +++ b/configure.ac @@ -4128,7 +4128,23 @@ then ]]])], [ac_cv_have_long_long_format=yes], [ac_cv_have_long_long_format=no], - [ac_cv_have_long_long_format=no]) + [ac_cv_have_long_long_format="cross -- assuming no" + if test x$GCC = xyes; then + save_CFLAGS=$CFLAGS + CFLAGS="$CFLAGS -Werror -Wformat" + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ + #include <stdio.h> + #include <stddef.h> + ]], [[ + char *buffer; + sprintf(buffer, "%lld", (long long)123); + sprintf(buffer, "%lld", (long long)-123); + sprintf(buffer, "%llu", (unsigned long long)123); + ]])], + ac_cv_have_long_long_format=yes + ) + CFLAGS=$save_CFLAGS + fi]) ) AC_MSG_RESULT($ac_cv_have_long_long_format) fi |