Ensure that writes to /dev/tty succeed to determine if it is writeable.

[mmh] / configure.ac

diff --git a/configure.ac b/configure.ac
index 70490ca..daec29c 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -71,6 +71,12 @@ AC_DEFINE_UNQUOTED([BACKUP_PREFIX], "$backup_prefix",
     [The prefix that is prepended to the name of message files when they are "removed" by rmm. This should typically be `,' or `#'.])dnl
 
 dnl What method of locking to use?
+AS_CASE(["$host_os"],
+  [aix*|cygwin*|linux*],
+    [default_locktype="fcntl"; default_locking=FCNTL_LOCKING],
+  [freebsd*], [default_locktype="flock"; default_locking=FLOCK_LOCKING],
+  [default_locktype="dot"; default_locking=DOT_LOCKING])
+
 AC_ARG_WITH(locking,
   AS_HELP_STRING([--with-locking=@<:@dot|fcntl|flock|lockf@:>@],
   [specify the file locking method]))
@@ -88,8 +94,8 @@ elif test x"$with_locking" = x"fcntl"; then
   LOCKTYPE="fcntl"
   AC_DEFINE(FCNTL_LOCKING, 1, [Define to use fnctl() based locking.])dnl
 else
-  LOCKTYPE="dot"
-  AC_DEFINE(DOT_LOCKING)dnl
+  LOCKTYPE="$default_locktype"
+  AC_DEFINE_UNQUOTED($default_locking, 1)dnl
 fi
 
 dnl Should we use a locking directory?
@@ -202,16 +208,18 @@ dnl also use -Wno-pointer-sign, because gcc 4 now produces a lot of new
 dnl warnings which are probably mostly spurious and which in any case we
 dnl don't want to deal with now.
 if test "$nmh_cv_has_noptrsign" = "yes"; then
+    nmh_gcc_common_flags="-ansi -pedantic -Wall"
     if test "$nmh_cv_has_wextra" = "yes"; then
-        nmh_gcc_warnflags="-Wall -Wextra -Wno-clobbered -Wno-pointer-sign"
+        nmh_gcc_warnflags="${nmh_gcc_common_flags} -Wextra -Wno-clobbered "\
+"-Wno-pointer-sign"
     else
-        nmh_gcc_warnflags="-Wall -Wno-pointer-sign"
+        nmh_gcc_warnflags="${nmh_gcc_common_flags} -Wno-pointer-sign"
     fi
 else
     if test "$nmh_cv_has_wextra" = "yes"; then
-        nmh_gcc_warnflags="-Wall -Wextra -Wno-clobbered"
+        nmh_gcc_warnflags="${nmh_gcc_common_flags} -Wextra -Wno-clobbered"
     else
-        nmh_gcc_warnflags="-Wall"
+        nmh_gcc_warnflags="${nmh_gcc_common_flags}"
     fi
 fi
 
@@ -433,11 +441,15 @@ dnl ---------------
 AC_CHECK_FUNCS([wcwidth mbtowc writev lstat nl_langinfo getutxent])
 
 dnl Check for multibyte character set support
-if test "x$ac_cv_header_wchar_h" = "xyes" -a "x$ac_cv_header_wctype_h" = "xyes" \
-    -a "x$ac_cv_func_wcwidth" = "xyes" -a "x$ac_cv_func_mbtowc" = "xyes"; then
-  AC_DEFINE(MULTIBYTE_SUPPORT, 1,
-    [Define to enable support for multibyte character sets.])
-fi
+AS_IF([test "x$ac_cv_header_wchar_h" = "xyes" -a \
+           "x$ac_cv_header_wctype_h" = "xyes" -a \
+           "x$ac_cv_func_wcwidth" = "xyes" -a \
+           "x$ac_cv_func_mbtowc" = "xyes"],
+      [AC_DEFINE([MULTIBYTE_SUPPORT], [1],
+                [Define to enable support for multibyte character sets.])
+       MULTIBYTE_ENABLED=1],
+      [MULTIBYTE_ENABLED=0])
+AC_SUBST([MULTIBYTE_ENABLED])
 
 dnl -------------------
 dnl CHECK FOR LIBRARIES