dnl * We require autoconf version 2.52
dnl We need 2.50 due to the use of AC_SYS_LARGEFILE and AC_MSG_NOTICE.
dnl We need 2.52 due to the use of AS_TR_CPP and AS_TR_SH.
-AC_PREREQ(2.52)
+AC_PREREQ([2.52])
dnl * Declare subdirectories that have a private configure script
dnl
dnl Foo: assumes we can use prototypes.
dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
dnl AC_CACHE_CHECK([type of signal handlers], ac_cv_type_signal_handler,
-dnl [AC_TRY_COMPILE([#include <sys/types.h>
+dnl [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
dnl #include <signal.h>
dnl #ifdef signal
dnl #undef signal
dnl #endif
dnl void (*signal (int, void (*)(int)))(int);
-dnl ],
-dnl [int i;],
-dnl ac_cv_type_signal_handler=void_int,
-dnl ac_cv_type_signal_handler=int_void)])
+dnl ]],
+dnl [[int i;]])],
+dnl [ac_cv_type_signal_handler=void_int],
+dnl [ac_cv_type_signal_handler=int_void])])
dnl if test "$ac_cv_type_signal_handler" = void_int; then
dnl AC_DEFINE(VOID_INT_SIGNALS)
dnl fi
fi
dnl ** check for more functions
-AC_CHECK_FUNCS([ftime getclock getgrgid_r getgrnam_r getpagesize getpwnam_r getpwuid_r getrusage gettimeofday gmtime_r localtime_r lstat readdir_r readlink setenv setitimer siginterrupt symlink sysconf times unsetenv])
+AC_CHECK_FUNCS([ftime getclock getgrgid_r getgrnam_r getpagesize getpwnam_r getpwuid_r getpwnam getpwuid getrusage gettimeofday gmtime_r localtime_r lstat readdir_r readlink setenv setitimer siginterrupt symlink sysconf times unsetenv])
dnl ** Solaris2 needs additionl flag for getpw*_r()
case "$TargetPlatform" in