Apparently the Gnulib readline module does not provide any obvious way
for users to disable it. Setting the gl_cv_lib_readline cache variable
works but probably only Autoconfers will know how to discover that.
Add an explicit --with-readline (and --without-readline) option which
internally sets this. Since this option shows up in configure's help
output it is hopefully more obvious.
AM_SILENT_RULES([yes])
DX_AUTOMAKE_COMPAT
AM_SILENT_RULES([yes])
DX_AUTOMAKE_COMPAT
+AC_ARG_WITH([readline],
+ [AS_HELP_STRING([--with-readline],
+ [use GNU readline for line-editing functionality (default: auto)])],
+ [], [with_readline=auto])
+AS_CASE([$with_readline],
+ [no], [gl_cv_lib_readline=no],
+ [yes|auto], [:],
+ [*], [AC_MSG_ERROR([invalid option --with-readline=$with_readline])])
+
AC_PROG_CC_C99
AM_PROG_CC_C_O
gl_EARLY
AC_PROG_CC_C99
AM_PROG_CC_C_O
gl_EARLY
+AS_IF([test x"$gl_cv_lib_readline" = x"no"],
+ [AS_IF([test x"$with_readline" = x"yes"],
+ [AC_MSG_FAILURE([--with-readline requested but readline was not found])],
+ [dx_cv_rl_add_history=no])])
AC_CACHE_CHECK([if readline supports add_history], [dx_cv_rl_add_history], [dnl
dx_cv_rl_add_history=no
dx_save_libs=$LIBS
AC_CACHE_CHECK([if readline supports add_history], [dx_cv_rl_add_history], [dnl
dx_cv_rl_add_history=no
dx_save_libs=$LIBS
])
AS_IF([test x"$dx_cv_rl_add_history" = x"yes"],
])
AS_IF([test x"$dx_cv_rl_add_history" = x"yes"],
- [AC_DEFINE([HAVE_RL_ADD_HISTORY], [1],
- [Define to 1 if readline supports add_history.])])
+ [AC_DEFINE([HAVE_RL_ADD_HISTORY], [1],
+ [Define to 1 if readline supports add_history.])])
m4_include([lib/gnulib.mk])
DX_GLSYM_PREFIX([cdecl__])
m4_include([lib/gnulib.mk])
DX_GLSYM_PREFIX([cdecl__])