Add configurable support for using termcap library for terminal size.

Makefile.in

@@ -171,6 +171,7 @@ SED = @SED@
 SET_MAKE = @SET_MAKE@
 SHELL = @SHELL@
 STRIP = @STRIP@
+TERMLIBS = @TERMLIBS@
 VERSION = @VERSION@
 abs_builddir = @abs_builddir@
 abs_srcdir = @abs_srcdir@

config.h.in

@@ -18,6 +18,12 @@
 /* Define to enable SIGSTOP (Ctrl-Z) key. */
 #undef CONFIG_SIGSTOP
 
+/* Define to use the termcap library for terminal size. */
+#undef CONFIG_USE_TERMCAP
+
+/* Define to 1 if `TIOCGWINSZ' requires <sys/ioctl.h>. */
+#undef GWINSZ_IN_SYS_IOCTL
+
 /* Define to 1 if you have the <dirent.h> header file, and it defines `DIR'.
    */
 #undef HAVE_DIRENT_H
@@ -34,6 +40,9 @@
 /* Define to 1 if you have the <memory.h> header file. */
 #undef HAVE_MEMORY_H
 
+/* Define to 1 if you have the <ncurses/termcap.h> header file. */
+#undef HAVE_NCURSES_TERMCAP_H
+
 /* Define to 1 if you have the <ndir.h> header file, and it defines `DIR'. */
 #undef HAVE_NDIR_H
 
@@ -88,6 +97,9 @@
 /* Define to 1 if you have the `tcgetattr' function. */
 #undef HAVE_TCGETATTR
 
+/* Define to 1 if you have the <termcap.h> header file. */
+#undef HAVE_TERMCAP_H
+
 /* Define to 1 if you have the <termios.h> header file. */
 #undef HAVE_TERMIOS_H
 

configure

@@ -746,6 +746,7 @@ ac_includes_default="\
 ac_subst_vars='am__EXEEXT_FALSE
 am__EXEEXT_TRUE
 LTLIBOBJS
+TERMLIBS
 AM_CFLAGS
 CONFIG_DEFAULT_COMPLETE_FALSE
 CONFIG_DEFAULT_COMPLETE_TRUE
@@ -872,6 +873,7 @@ enable_default_complete
 enable_arrow_keys
 enable_sigstop
 enable_terminal_bell
+enable_termcap
 enable_history
 '
       ac_precious_vars='build_alias
@@ -1515,6 +1517,7 @@ Optional Features:
   --enable-arrow-keys            Enable ANSI arrow keys.
   --enable-sigstop               Enable SIGSTOP key.
   --enable-terminal-bell         Enable terminal bell on completion.
+  --enable-termcap               Use the termcap library for terminal size.
   --enable-history=LINES         Enable scrollback history, default off.
 
 Optional Packages:
@@ -4557,13 +4560,13 @@ if test "${lt_cv_nm_interface+set}" = set; then :
 else
   lt_cv_nm_interface="BSD nm"
   echo "int some_variable = 0;" > conftest.$ac_ext
-  (eval echo "\"\$as_me:4560: $ac_compile\"" >&5)
+  (eval echo "\"\$as_me:4563: $ac_compile\"" >&5)
   (eval "$ac_compile" 2>conftest.err)
   cat conftest.err >&5
-  (eval echo "\"\$as_me:4563: $NM \\\"conftest.$ac_objext\\\"\"" >&5)
+  (eval echo "\"\$as_me:4566: $NM \\\"conftest.$ac_objext\\\"\"" >&5)
   (eval "$NM \"conftest.$ac_objext\"" 2>conftest.err > conftest.out)
   cat conftest.err >&5
-  (eval echo "\"\$as_me:4566: output\"" >&5)
+  (eval echo "\"\$as_me:4569: output\"" >&5)
   cat conftest.out >&5
   if $GREP 'External.*some_variable' conftest.out > /dev/null; then
     lt_cv_nm_interface="MS dumpbin"
@@ -5769,7 +5772,7 @@ ia64-*-hpux*)
   ;;
 *-*-irix6*)
   # Find out which ABI we are using.
-  echo '#line 5772 "configure"' > conftest.$ac_ext
+  echo '#line 5775 "configure"' > conftest.$ac_ext
   if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
@@ -7299,11 +7302,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:7302: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:7305: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:7306: \$? = $ac_status" >&5
+   echo "$as_me:7309: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings other than the usual output.
@@ -7638,11 +7641,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:7641: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:7644: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:7645: \$? = $ac_status" >&5
+   echo "$as_me:7648: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings other than the usual output.
@@ -7743,11 +7746,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:7746: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:7749: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:7750: \$? = $ac_status" >&5
+   echo "$as_me:7753: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s out/conftest2.$ac_objext
    then
      # The compiler can only warn and ignore the option if not recognized
@@ -7798,11 +7801,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:7801: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:7804: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:7805: \$? = $ac_status" >&5
+   echo "$as_me:7808: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s out/conftest2.$ac_objext
    then
      # The compiler can only warn and ignore the option if not recognized
@@ -10182,7 +10185,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 10185 "configure"
+#line 10188 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -10278,7 +10281,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 10281 "configure"
+#line 10284 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -10822,7 +10825,7 @@ fi
 
 # Check for malloc.h instead of AC_FUNC_MALLOC/REALLOC AIX and others
 # mess up the traditional malloc check.
-for ac_header in malloc.h signal.h sgtty.h stdlib.h string.h termio.h termios.h
+for ac_header in malloc.h signal.h stdlib.h string.h termcap.h termio.h termios.h sgtty.h
 do :
   as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
 ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
@@ -10837,6 +10840,68 @@ fi
 done
 
 
+# In termios.h or in sys/ioctl.g?
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether termios.h defines TIOCGWINSZ" >&5
+$as_echo_n "checking whether termios.h defines TIOCGWINSZ... " >&6; }
+if test "${ac_cv_sys_tiocgwinsz_in_termios_h+set}" = set; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <sys/types.h>
+#include <termios.h>
+#ifdef TIOCGWINSZ
+  yes
+#endif
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "yes" >/dev/null 2>&1; then :
+  ac_cv_sys_tiocgwinsz_in_termios_h=yes
+else
+  ac_cv_sys_tiocgwinsz_in_termios_h=no
+fi
+rm -f conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sys_tiocgwinsz_in_termios_h" >&5
+$as_echo "$ac_cv_sys_tiocgwinsz_in_termios_h" >&6; }
+
+if test $ac_cv_sys_tiocgwinsz_in_termios_h != yes; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether sys/ioctl.h defines TIOCGWINSZ" >&5
+$as_echo_n "checking whether sys/ioctl.h defines TIOCGWINSZ... " >&6; }
+if test "${ac_cv_sys_tiocgwinsz_in_sys_ioctl_h+set}" = set; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <sys/types.h>
+#include <sys/ioctl.h>
+#ifdef TIOCGWINSZ
+  yes
+#endif
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "yes" >/dev/null 2>&1; then :
+  ac_cv_sys_tiocgwinsz_in_sys_ioctl_h=yes
+else
+  ac_cv_sys_tiocgwinsz_in_sys_ioctl_h=no
+fi
+rm -f conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sys_tiocgwinsz_in_sys_ioctl_h" >&5
+$as_echo "$ac_cv_sys_tiocgwinsz_in_sys_ioctl_h" >&6; }
+
+  if test $ac_cv_sys_tiocgwinsz_in_sys_ioctl_h = yes; then
+
+$as_echo "#define GWINSZ_IN_SYS_IOCTL 1" >>confdefs.h
+
+  fi
+fi
+
+
 # Overrides and types, should be a check.
 
 $as_echo "#define SYS_UNIX 1" >>confdefs.h
@@ -11103,6 +11168,14 @@ $as_echo "#define CONFIG_ANNOYING_NOISE /**/" >>confdefs.h
 fi
 
 
+# Check whether --enable-termcap was given.
+if test "${enable_termcap+set}" = set; then :
+  enableval=$enable_termcap;
+$as_echo "#define CONFIG_USE_TERMCAP /**/" >>confdefs.h
+
+fi
+
+
 # Default history size 1, i.e. disabled.
 let HIST_SIZE=1
 # Check whether --enable-history was given.
@@ -11194,6 +11267,146 @@ CFLAGS="$saved_cflags"
 AM_CFLAGS="-std=gnu99 $inline_cflags -W -Wall -Wundef -Wunused -Wstrict-prototypes -Werror-implicit-function-declaration $nopointersign_cflags -Wshadow"
 
 
+### The following magic for determining the location of termcap library is from GNU Texinfo
+### http://www.tex.ac.uk/tex-archive/macros/texinfo/texinfo/configure.ac
+# Some GNU/Linux systems (e.g., SuSE 4.3, 1996) don't have curses, but
+# rather ncurses.  So we check for it.
+TERMLIBS=
+# Check for termlib before termcap because Solaris termcap needs libucb.
+TERMLIB_VARIANTS="termlib termcap terminfo ncurses curses"
+for termlib in ${TERMLIB_VARIANTS}; do
+  as_ac_Lib=`$as_echo "ac_cv_lib_${termlib}''_tgetent" | $as_tr_sh`
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for tgetent in -l${termlib}" >&5
+$as_echo_n "checking for tgetent in -l${termlib}... " >&6; }
+if { as_var=$as_ac_Lib; eval "test \"\${$as_var+set}\" = set"; }; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-l${termlib}  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char tgetent ();
+int
+main ()
+{
+return tgetent ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval "$as_ac_Lib=yes"
+else
+  eval "$as_ac_Lib=no"
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+eval ac_res=\$$as_ac_Lib
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+eval as_val=\$$as_ac_Lib
+   if test "x$as_val" = x""yes; then :
+  TERMLIBS="${TERMLIBS} -l${termlib}"; break
+fi
+
+done
+# don't bother warning on djgpp, it doesn't have a term library, it
+# ports each termcap-needing program separately according to its needs.
+if test -z "$TERMLIBS" && echo "$build" | grep -v djgpp >/dev/null; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: probably need a terminal library, one of: ${TERMLIB_VARIANTS}" >&5
+$as_echo "$as_me: WARNING: probably need a terminal library, one of: ${TERMLIB_VARIANTS}" >&2;}
+fi
+
+# Checks for variables.
+# HP-UX 9 (at least) needs -lncurses which defines termcap variables PC etc.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library with termcap variables" >&5
+$as_echo_n "checking for library with termcap variables... " >&6; }
+if test "${ac_cv_var_ospeed+set}" = set; then :
+  $as_echo_n "(cached) " >&6
+else
+  oldLIBS=$LIBS
+for trylib in $termlib ${TERMLIB_VARIANTS}; do
+   if test "x$trylib" != "x$termlib"; then
+     LIBS="$oldLIBS -l$termlib -l$trylib"
+   else
+     LIBS="$oldLIBS -l$termlib"
+   fi
+   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+#ifdef HAVE_NCURSES_TERMCAP_H
+#include <ncurses/termcap.h>
+#else
+#ifdef HAVE_TERMCAP_H
+#include <termcap.h>
+#else
+#undef PC
+char *BC;
+char **UP;
+char PC;
+short ospeed;
+#endif
+#endif
+/* Make sure all variables actually exist.  AIX 4.3 has ospeed but no BC.
+   --Andreas Ley <andy@rz.uni-karlsruhe.de> 24 Aug 2000.  */
+BC++;
+UP++;
+PC++;
+return ospeed != 0;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_var_ospeed=$trylib; break
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+done
+LIBS=$oldLIBS
+
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_var_ospeed" >&5
+$as_echo "$ac_cv_var_ospeed" >&6; }
+if test -n "$ac_cv_var_ospeed" \
+   && test "x$termlib" != "x$ac_cv_var_ospeed"; then
+  TERMLIBS="${TERMLIBS} -l${ac_cv_var_ospeed}"
+fi
+#
+
+# Do not use <ncurses/termcap.h> unless we're linking with ncurses.
+# Must come after the termlib tests.
+if test "x$termlib" = xncurses; then
+  # Use AC_CHECK_HEADERS so the HAVE_*_H symbol gets defined.
+  for ac_header in ncurses/termcap.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "ncurses/termcap.h" "ac_cv_header_ncurses_termcap_h" "$ac_includes_default"
+if test "x$ac_cv_header_ncurses_termcap_h" = x""yes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_NCURSES_TERMCAP_H 1
+_ACEOF
+
+fi
+
+done
+
+fi
+### End-of-Termcap magic from http://www.tex.ac.uk/tex-archive/macros/texinfo/texinfo/configure.ac
+
 ac_config_files="$ac_config_files Makefile src/Makefile include/Makefile man/Makefile examples/Makefile"
 
 cat >confcache <<\_ACEOF

configure.ac

@@ -1,5 +1,16 @@
 # Minix libeditline                                           -*- Autoconf -*-
+#
+# Copyright (c) 2008-2010  Joachim Nilsson <troglobit()vmlinux!org>
+#
 # Process this file with autoconf to produce a configure script.
+#
+# This file is free software; as a special exception the author gives
+# unlimited permission to copy and/or distribute it, with or without
+# modifications, as long as this notice is preserved.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY, to the extent permitted by law; without even the
+# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 
 AC_PREREQ(2.61)
 AC_INIT(editline, 1.13.0, troglobit@vmlinux.org)
@@ -25,7 +36,10 @@ AC_HEADER_STAT
 AC_HEADER_STDC
 # Check for malloc.h instead of AC_FUNC_MALLOC/REALLOC AIX and others
 # mess up the traditional malloc check.
-AC_CHECK_HEADERS([malloc.h signal.h sgtty.h stdlib.h string.h termio.h termios.h])
+AC_CHECK_HEADERS([malloc.h signal.h stdlib.h string.h termcap.h termio.h termios.h sgtty.h])
+
+# In termios.h or in sys/ioctl.g?
+AC_HEADER_TIOCGWINSZ
 
 # Overrides and types, should be a check.
 AC_DEFINE([SYS_UNIX], [1], [Default to UNIX backend, should be detected.])
@@ -55,6 +69,10 @@ AC_ARG_ENABLE(terminal-bell,
    [  --enable-terminal-bell         Enable terminal bell on completion.],
    AC_DEFINE([CONFIG_ANNOYING_NOISE],, [Define to enable terminal bell on completion.]))
 
+AC_ARG_ENABLE(termcap,
+   [  --enable-termcap               Use the termcap library for terminal size.],
+   AC_DEFINE([CONFIG_USE_TERMCAP],, [Define to use the termcap library for terminal size.]))
+
 # Default history size 1, i.e. disabled.
 let HIST_SIZE=1
 AC_ARG_ENABLE(history,
@@ -92,5 +110,71 @@ CFLAGS="$saved_cflags"
 AM_CFLAGS="-std=gnu99 $inline_cflags -W -Wall -Wundef -Wunused -Wstrict-prototypes -Werror-implicit-function-declaration $nopointersign_cflags -Wshadow"
 AC_SUBST(AM_CFLAGS)
 
+### The following magic for determining the location of termcap library is from GNU Texinfo
+### http://www.tex.ac.uk/tex-archive/macros/texinfo/texinfo/configure.ac
+# Some GNU/Linux systems (e.g., SuSE 4.3, 1996) don't have curses, but
+# rather ncurses.  So we check for it.
+TERMLIBS=
+# Check for termlib before termcap because Solaris termcap needs libucb.
+TERMLIB_VARIANTS="termlib termcap terminfo ncurses curses"
+for termlib in ${TERMLIB_VARIANTS}; do
+  AC_CHECK_LIB(${termlib}, tgetent,
+     [TERMLIBS="${TERMLIBS} -l${termlib}"; break])
+done
+# don't bother warning on djgpp, it doesn't have a term library, it
+# ports each termcap-needing program separately according to its needs.
+if test -z "$TERMLIBS" && echo "$build" | grep -v djgpp >/dev/null; then
+  AC_MSG_WARN([probably need a terminal library, one of: ${TERMLIB_VARIANTS}])
+fi
+
+# Checks for variables.
+# HP-UX 9 (at least) needs -lncurses which defines termcap variables PC etc.
+AC_MSG_CHECKING(for library with termcap variables)
+AC_CACHE_VAL(ac_cv_var_ospeed,
+[oldLIBS=$LIBS
+for trylib in $termlib ${TERMLIB_VARIANTS}; do
+   if test "x$trylib" != "x$termlib"; then
+     LIBS="$oldLIBS -l$termlib -l$trylib"
+   else
+     LIBS="$oldLIBS -l$termlib"
+   fi
+   AC_LINK_IFELSE([AC_LANG_PROGRAM([], [[#ifdef HAVE_NCURSES_TERMCAP_H
+#include <ncurses/termcap.h>
+#else
+#ifdef HAVE_TERMCAP_H
+#include <termcap.h>
+#else
+#undef PC
+char *BC;
+char **UP;
+char PC;
+short ospeed;
+#endif
+#endif
+/* Make sure all variables actually exist.  AIX 4.3 has ospeed but no BC.
+   --Andreas Ley <andy@rz.uni-karlsruhe.de> 24 Aug 2000.  */
+BC++;
+UP++;
+PC++;
+return ospeed != 0;
+]])], [ac_cv_var_ospeed=$trylib; break])
+done
+LIBS=$oldLIBS
+])
+AC_MSG_RESULT($ac_cv_var_ospeed)
+if test -n "$ac_cv_var_ospeed" \
+   && test "x$termlib" != "x$ac_cv_var_ospeed"; then
+  TERMLIBS="${TERMLIBS} -l${ac_cv_var_ospeed}"
+fi
+AC_SUBST(TERMLIBS)#
+
+# Do not use <ncurses/termcap.h> unless we're linking with ncurses.
+# Must come after the termlib tests.
+if test "x$termlib" = xncurses; then
+  # Use AC_CHECK_HEADERS so the HAVE_*_H symbol gets defined.
+  AC_CHECK_HEADERS(ncurses/termcap.h)
+fi
+### End-of-Termcap magic from http://www.tex.ac.uk/tex-archive/macros/texinfo/texinfo/configure.ac
+
 AC_OUTPUT(Makefile src/Makefile include/Makefile man/Makefile examples/Makefile)
 

examples/Makefile.am

@@ -1,6 +1,6 @@
 AUTOMAKE_OPTIONS = foreign
 
 noinst_PROGRAMS  = testit cli
-LDADD            = $(top_builddir)/src/libeditline.la
+LDADD            = $(top_builddir)/src/libeditline.la $(TERMLIBS)
 AM_CFLAGS        = -I$(top_srcdir)/src -I$(top_srcdir)/include
 

examples/Makefile.in

@@ -52,14 +52,17 @@ PROGRAMS = $(noinst_PROGRAMS)
 cli_SOURCES = cli.c
 cli_OBJECTS = cli.$(OBJEXT)
 cli_LDADD = $(LDADD)
-cli_DEPENDENCIES = $(top_builddir)/src/libeditline.la
+am__DEPENDENCIES_1 =
+cli_DEPENDENCIES = $(top_builddir)/src/libeditline.la \
+	$(am__DEPENDENCIES_1)
 AM_V_lt = $(am__v_lt_$(V))
 am__v_lt_ = $(am__v_lt_$(AM_DEFAULT_VERBOSITY))
 am__v_lt_0 = --silent
 testit_SOURCES = testit.c
 testit_OBJECTS = testit.$(OBJEXT)
 testit_LDADD = $(LDADD)
-testit_DEPENDENCIES = $(top_builddir)/src/libeditline.la
+testit_DEPENDENCIES = $(top_builddir)/src/libeditline.la \
+	$(am__DEPENDENCIES_1)
 DEFAULT_INCLUDES = -I.@am__isrc@ -I$(top_builddir)
 depcomp = $(SHELL) $(top_srcdir)/depcomp
 am__depfiles_maybe = depfiles
@@ -151,6 +154,7 @@ SED = @SED@
 SET_MAKE = @SET_MAKE@
 SHELL = @SHELL@
 STRIP = @STRIP@
+TERMLIBS = @TERMLIBS@
 VERSION = @VERSION@
 abs_builddir = @abs_builddir@
 abs_srcdir = @abs_srcdir@
@@ -205,7 +209,7 @@ top_build_prefix = @top_build_prefix@
 top_builddir = @top_builddir@
 top_srcdir = @top_srcdir@
 AUTOMAKE_OPTIONS = foreign
-LDADD = $(top_builddir)/src/libeditline.la
+LDADD = $(top_builddir)/src/libeditline.la $(TERMLIBS)
 all: all-am
 
 .SUFFIXES:

include/Makefile.in

@@ -142,6 +142,7 @@ SED = @SED@
 SET_MAKE = @SET_MAKE@
 SHELL = @SHELL@
 STRIP = @STRIP@
+TERMLIBS = @TERMLIBS@
 VERSION = @VERSION@
 abs_builddir = @abs_builddir@
 abs_srcdir = @abs_srcdir@

man/Makefile.in

@@ -141,6 +141,7 @@ SED = @SED@
 SET_MAKE = @SET_MAKE@
 SHELL = @SHELL@
 STRIP = @STRIP@
+TERMLIBS = @TERMLIBS@
 VERSION = @VERSION@
 abs_builddir = @abs_builddir@
 abs_srcdir = @abs_srcdir@

src/Makefile.in

@@ -172,6 +172,7 @@ SED = @SED@
 SET_MAKE = @SET_MAKE@
 SHELL = @SHELL@
 STRIP = @STRIP@
+TERMLIBS = @TERMLIBS@
 VERSION = @VERSION@
 abs_builddir = @abs_builddir@
 abs_srcdir = @abs_srcdir@

src/complete.c

@@ -240,3 +240,12 @@ int default_rl_list_possib(char *pathname, char ***avp)
 
     return ac;
 }
+
+/**
+ * Local Variables:
+ *  version-control: t
+ *  indent-tabs-mode: t
+ *  c-file-style: "ellemtel"
+ *  c-basic-offset: 4
+ * End:
+ */

src/editline.c

@@ -27,7 +27,7 @@
 /*
 **  Manifest constants.
 */
-#define SCREEN_WIDTH    80
+#define SCREEN_COLS     80
 #define SCREEN_ROWS     24
 #define NO_ARG          (-1)
 #define DEL             127
@@ -107,7 +107,7 @@ static SIZE_T     Length;
 static SIZE_T     ScreenCount;
 static SIZE_T     ScreenSize;
 static char       *backspace;
-static int        tty_width;
+static int        tty_cols;
 static int        tty_rows;
 
 /* Display print 8-bit chars as `M-x' or as the actual 8-bit char? */
@@ -122,11 +122,10 @@ int (*rl_list_possib)(char *token, char ***av);
 **  Declarations.
 */
 static char     *editinput(void);
-#ifdef USE_TERMCAP
+#ifdef CONFIG_USE_TERMCAP
-extern char     *getenv(void);
+extern char     *tgetstr(const char *, char **);
-extern char     *tgetstr(void);
+extern int      tgetent(char *, const char *);
-extern int      tgetent(void);
+extern int      tgetnum(const char *);
-extern int      tgetnum(void);
 #endif
 
 /*
@@ -213,7 +212,7 @@ static void tty_backn(int n)
 static void tty_info(void)
 {
     static int          init;
-#ifdef USE_TERMCAP
+#ifdef CONFIG_USE_TERMCAP
     char                *term;
     char                buff[2048];
     char                *bp;
@@ -227,7 +226,7 @@ static void tty_info(void)
         /* Perhaps we got resized. */
         if (ioctl(0, TIOCGWINSZ, &W) >= 0
          && W.ws_col > 0 && W.ws_row > 0) {
-            tty_width = (int)W.ws_col;
+            tty_cols = (int)W.ws_col;
             tty_rows = (int)W.ws_row;
         }
 #endif
@@ -235,32 +234,31 @@ static void tty_info(void)
     }
     init++;
 
-    tty_width = tty_rows = 0;
+    /* Initialize to faulty values to trigger fallback if nothing else works. */
-#ifdef USE_TERMCAP
+    tty_cols = tty_rows = -1;
+#ifdef CONFIG_USE_TERMCAP
     bp = buff;
     if ((term = getenv("TERM")) == NULL)
         term = "dumb";
-    if (tgetent(buff, term) < 0) {
+    if (-1 != tgetent(buff, term)) {
-       tty_width = SCREEN_WIDTH;
+       if ((backspace = tgetstr("le", &bp)) != NULL)
-       tty_rows = SCREEN_ROWS;
+          backspace = strdup(backspace);
-       return;
+       tty_cols = tgetnum("co");
+       tty_rows = tgetnum("li");
     }
-    if ((backspace = tgetstr("le", &bp)) != NULL)
+    /* Make sure to check width & rows and fallback to TIOCGWINSZ if available. */
-        backspace = strdup(backspace);
-    tty_width = tgetnum("co");
-    tty_rows = tgetnum("li");
 #endif
 
+    if (tty_cols <= 0 || tty_rows <= 0) {
 #ifdef TIOCGWINSZ
-    if (ioctl(0, TIOCGWINSZ, &W) >= 0) {
+       if (-1 != ioctl(0, TIOCGWINSZ, &W)) {
-        tty_width = (int)W.ws_col;
+          tty_cols = (int)W.ws_col;
-        tty_rows = (int)W.ws_row;
+          tty_rows = (int)W.ws_row;
-    }
+          return;
+       }
 #endif
-
+       tty_cols = SCREEN_COLS;
-    if (tty_width <= 0 || tty_rows <= 0) {
+       tty_rows = SCREEN_ROWS;
-        tty_width = SCREEN_WIDTH;
-        tty_rows = SCREEN_ROWS;
     }
 }
 
@@ -283,7 +281,7 @@ static void columns(int ac, char **av)
     for (longest = 0, i = 0; i < ac; i++)
         if ((j = strlen((char *)av[i])) > longest)
             longest = j;
-    cols = tty_width / (longest + 3);
+    cols = tty_cols / (longest + 3);
 
     tty_puts(NEWLINE);
     for (skip = ac / cols + 1, i = 0; i < skip; i++) {
@@ -1467,3 +1465,11 @@ static el_keymap_t   MetaMap[]= {
     {   0,              NULL            }
 };
 
+/**
+ * Local Variables:
+ *  version-control: t
+ *  indent-tabs-mode: t
+ *  c-file-style: "ellemtel"
+ *  c-basic-offset: 4
+ * End:
+ */

src/editline.h

@@ -45,6 +45,13 @@
 #ifdef SYS_OS9
 #include "os9.h"
 #endif
+/* The following two are for TIOCGWINSZ */
+#ifdef HAVE_TERMIOS_H
+# include <termios.h>
+#endif
+#ifdef GWINSZ_IN_SYS_IOCTL
+# include <sys/ioctl.h>
+#endif
 
 #ifndef SIZE_T
 #define SIZE_T	unsigned int