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Maciej W. Rozycki made this script use a cache variable for the writable

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argv test. This way, the default can be overridden better (for cross-compiles
etc)
This commit is contained in:
Daniel Stenberg 2003-11-17 05:23:06 +00:00
parent a0a5668dbd
commit 0717e4690e
1 changed files with 15 additions and 3 deletions
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18
configure.ac
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@ -365,18 +365,30 @@ dnl Check if the operating system allows programs to write to their own argv[]
dnl ********************************************************************** dnl **********************************************************************
AC_MSG_CHECKING([if argv can be written to]) AC_MSG_CHECKING([if argv can be written to])
AC_CACHE_VAL(curl_cv_writable_argv, [
AC_RUN_IFELSE([[ AC_RUN_IFELSE([[
int main(int argc, char ** argv) { int main(int argc, char ** argv) {
argv[0][0] = ' '; argv[0][0] = ' ';
return (argv[0][0] == ' ')?0:1; return (argv[0][0] == ' ')?0:1;
} }
]], ]],
curl_cv_writable_argv=yes,
curl_cv_writable_argv=no,
curl_cv_writable_argv=cross)
])
case $curl_cv_writable_argv in
yes)
AC_DEFINE(HAVE_WRITABLE_ARGV, 1, [Define this symbol if your OS supports changing the contents of argv]) AC_DEFINE(HAVE_WRITABLE_ARGV, 1, [Define this symbol if your OS supports changing the contents of argv])
AC_MSG_RESULT(yes), AC_MSG_RESULT(yes)
AC_MSG_RESULT(no), ;;
no)
AC_MSG_RESULT(no)
;;
*)
AC_MSG_RESULT(no) AC_MSG_RESULT(no)
AC_MSG_WARN([the previous check could not be made default was used]) AC_MSG_WARN([the previous check could not be made default was used])
) ;;
esac
dnl ********************************************************************** dnl **********************************************************************
dnl Check for the presence of Kerberos4 libraries and headers dnl Check for the presence of Kerberos4 libraries and headers