Commit 0717e469 authored by Daniel Stenberg's avatar Daniel Stenberg
Browse files

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

argv test. This way, the default can be overridden better (for cross-compiles
etc)
parent a0a5668d

configure.ac

+15 −3
Original line number Diff line number Diff line
@@ -365,18 +365,30 @@ dnl Check if the operating system allows programs to write to their own argv[] 
dnl **********************************************************************



AC_MSG_CHECKING([if argv can be written to])

AC_CACHE_VAL(curl_cv_writable_argv, [

AC_RUN_IFELSE([[

int main(int argc, char ** argv) {

	argv[0][0] = ' ';

	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_MSG_RESULT(yes),

	AC_MSG_RESULT(no),

	AC_MSG_RESULT(yes)

	;;

no)

	AC_MSG_RESULT(no)

	;;

*)

        AC_MSG_RESULT(no)

        AC_MSG_WARN([the previous check could not be made default was used])

)

	;;

esac



dnl **********************************************************************

dnl Check for the presence of Kerberos4 libraries and headers