Fix the configure check for S-Lang (#676)

Issue: #667

diff --git a/configure.ac b/configure.ac
index bc88adc71ef1cacaff13840a4f0c6bb628ddf056..fa14a474b2dfa8299f4a510e012986f69ef54ac0 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -281,8 +281,12 @@ if test $ISPELL != no; then
        AC_DEFINE_UNQUOTED(ISPELL,"$ISPELL",[ Where to find ispell on your system. ])
 fi
 
+want_slang=no
 AC_ARG_WITH(slang, AS_HELP_STRING([--with-slang@<:@=DIR@:>@],[Use S-Lang instead of ncurses]),
-       [AC_CACHE_CHECK([if this is a BSD system], mutt_cv_bsdish,
+       [want_slang=$withval])
+if test $want_slang != no; then
+       withval=$want_slang
+       AC_CACHE_CHECK([if this is a BSD system], mutt_cv_bsdish,
                [AC_RUN_IFELSE([AC_LANG_SOURCE([[
 #include <sys/param.h>
 #include <stdlib.h>
@@ -340,10 +344,8 @@ main ()
        AC_CHECK_LIB(slang, SLtt_get_terminfo,
                [LIBS="$LIBS -lslang -lm"],
                [AC_MSG_ERROR(unable to compile.  check config.log)], -lm)
-
-       ],
-
-       [mutt_cv_curses=/usr
+else
+       mutt_cv_curses=/usr
        AC_ARG_WITH(curses, AS_HELP_STRING([--with-curses=DIR],[Where ncurses is installed]),
                [if test x$withval != xyes; then
                        mutt_cv_curses=$withval
@@ -391,7 +393,7 @@ main ()
                MUTT_LIB_OBJECTS="$MUTT_LIB_OBJECTS resize.o"
        fi
        AC_CHECK_FUNCS([use_extended_names])
-       ])
+fi
 
 AC_HEADER_STDC