3 files changed, 236 insertions, 0 deletions
diff --git a/examples/autoconf/BASH_CHECK_LIB_TERMCAP b/examples/autoconf/BASH_CHECK_LIB_TERMCAP
new file mode 100644
index 0000000..0a09883
--- /dev/null
+++ b/examples/autoconf/BASH_CHECK_LIB_TERMCAP
@@ -0,0 +1,41 @@
+AC_DEFUN([BASH_CHECK_LIB_TERMCAP],
+[
+if test "X$bash_cv_termcap_lib" = "X"; then
+_bash_needmsg=yes
+else
+AC_MSG_CHECKING(which library has the termcap functions)
+_bash_needmsg=
+fi
+AC_CACHE_VAL(bash_cv_termcap_lib,
+[AC_CHECK_FUNC(tgetent, bash_cv_termcap_lib=libc,
+  [AC_CHECK_LIB(termcap, tgetent, bash_cv_termcap_lib=libtermcap,
+    [AC_CHECK_LIB(tinfo, tgetent, bash_cv_termcap_lib=libtinfo,
+        [AC_CHECK_LIB(curses, tgetent, bash_cv_termcap_lib=libcurses,
+	    [AC_CHECK_LIB(ncurses, tgetent, bash_cv_termcap_lib=libncurses,
+                [AC_CHECK_LIB(ncursesw, tgetent, bash_cv_termcap_lib=libncursesw,
+	            bash_cv_termcap_lib=gnutermcap)])])])])])])
+if test "X$_bash_needmsg" = "Xyes"; then
+AC_MSG_CHECKING(which library has the termcap functions)
+fi
+AC_MSG_RESULT(using $bash_cv_termcap_lib)
+if test $bash_cv_termcap_lib = gnutermcap && test -z "$prefer_curses"; then
+LDFLAGS="$LDFLAGS -L./lib/termcap"
+TERMCAP_LIB="./lib/termcap/libtermcap.a"
+TERMCAP_DEP="./lib/termcap/libtermcap.a"
+elif test $bash_cv_termcap_lib = libtermcap && test -z "$prefer_curses"; then
+TERMCAP_LIB=-ltermcap
+TERMCAP_DEP=
+elif test $bash_cv_termcap_lib = libtinfo; then
+TERMCAP_LIB=-ltinfo
+TERMCAP_DEP=
+elif test $bash_cv_termcap_lib = libncurses; then
+TERMCAP_LIB=-lncurses
+TERMCAP_DEP=
+elif test $bash_cv_termcap_lib = libc; then
+TERMCAP_LIB=
+TERMCAP_DEP=
+else
+TERMCAP_LIB=-lcurses
+TERMCAP_DEP=
+fi
+])
diff --git a/examples/autoconf/RL_LIB_READLINE_VERSION b/examples/autoconf/RL_LIB_READLINE_VERSION
new file mode 100644
index 0000000..cc158a8
--- /dev/null
+++ b/examples/autoconf/RL_LIB_READLINE_VERSION
@@ -0,0 +1,119 @@
+dnl need: prefix exec_prefix libdir includedir CC TERMCAP_LIB
+dnl require:
+dnl	AC_PROG_CC
+dnl	BASH_CHECK_LIB_TERMCAP
+
+AC_DEFUN([RL_LIB_READLINE_VERSION],
+[
+AC_REQUIRE([BASH_CHECK_LIB_TERMCAP])
+
+AC_MSG_CHECKING([version of installed readline library])
+
+# What a pain in the ass this is.
+
+# save cpp and ld options
+_save_CFLAGS="$CFLAGS"
+_save_LDFLAGS="$LDFLAGS"
+_save_LIBS="$LIBS"
+
+# Don't set ac_cv_rl_prefix if the caller has already assigned a value.  This
+# allows the caller to do something like $_rl_prefix=$withval if the user
+# specifies --with-installed-readline=PREFIX as an argument to configure
+
+if test -z "$ac_cv_rl_prefix"; then
+test "x$prefix" = xNONE && ac_cv_rl_prefix=$ac_default_prefix || ac_cv_rl_prefix=${prefix}
+fi
+
+eval ac_cv_rl_includedir=${ac_cv_rl_prefix}/include
+eval ac_cv_rl_libdir=${ac_cv_rl_prefix}/lib
+
+LIBS="$LIBS -lreadline ${TERMCAP_LIB}"
+CFLAGS="$CFLAGS -I${ac_cv_rl_includedir}"
+LDFLAGS="$LDFLAGS -L${ac_cv_rl_libdir}"
+
+AC_CACHE_VAL(ac_cv_rl_version,
+[AC_TRY_RUN([
+#include <stdio.h>
+#include <readline/readline.h>
+#include <stdlib.h>
+
+extern int rl_gnu_readline_p;
+
+main()
+{
+	FILE *fp;
+	fp = fopen("conftest.rlv", "w");
+	if (fp == 0)
+		exit(1);
+	if (rl_gnu_readline_p != 1)
+		fprintf(fp, "0.0\n");
+	else
+		fprintf(fp, "%s\n", rl_library_version ? rl_library_version : "0.0");
+	fclose(fp);
+	exit(0);
+}
+],
+ac_cv_rl_version=`cat conftest.rlv`,
+ac_cv_rl_version='0.0',
+ac_cv_rl_version='4.2')])
+
+CFLAGS="$_save_CFLAGS"
+LDFLAGS="$_save_LDFLAGS"
+LIBS="$_save_LIBS"
+
+RL_MAJOR=0
+RL_MINOR=0
+
+# (
+case "$ac_cv_rl_version" in
+2*|3*|4*|5*|6*|7*|8*|9*)
+	RL_MAJOR=`echo $ac_cv_rl_version | sed 's:\..*$::'`
+	RL_MINOR=`echo $ac_cv_rl_version | sed -e 's:^.*\.::' -e 's:[[a-zA-Z]]*$::'`
+	;;
+esac
+
+# (((
+case $RL_MAJOR in
+[[0-9][0-9]])	_RL_MAJOR=$RL_MAJOR ;;
+[[0-9]])	_RL_MAJOR=0$RL_MAJOR ;;
+*)		_RL_MAJOR=00 ;;
+esac
+
+# (((
+case $RL_MINOR in
+[[0-9][0-9]])	_RL_MINOR=$RL_MINOR ;;
+[[0-9]])	_RL_MINOR=0$RL_MINOR ;;
+*)		_RL_MINOR=00 ;;
+esac
+
+RL_VERSION="0x${_RL_MAJOR}${_RL_MINOR}"
+
+# Readline versions greater than 4.2 have these defines in readline.h
+
+if test $ac_cv_rl_version = '0.0' ; then
+	AC_MSG_WARN([Could not test version of installed readline library.])
+elif test $RL_MAJOR -gt 4 || { test $RL_MAJOR = 4 && test $RL_MINOR -gt 2 ; } ; then
+	# set these for use by the caller
+	RL_PREFIX=$ac_cv_rl_prefix
+	RL_LIBDIR=$ac_cv_rl_libdir
+	RL_INCLUDEDIR=$ac_cv_rl_includedir
+	AC_MSG_RESULT($ac_cv_rl_version)
+else
+
+AC_DEFINE_UNQUOTED(RL_READLINE_VERSION, $RL_VERSION, [encoded version of the installed readline library])
+AC_DEFINE_UNQUOTED(RL_VERSION_MAJOR, $RL_MAJOR, [major version of installed readline library])
+AC_DEFINE_UNQUOTED(RL_VERSION_MINOR, $RL_MINOR, [minor version of installed readline library])
+
+AC_SUBST(RL_VERSION)
+AC_SUBST(RL_MAJOR)
+AC_SUBST(RL_MINOR)
+
+# set these for use by the caller
+RL_PREFIX=$ac_cv_rl_prefix
+RL_LIBDIR=$ac_cv_rl_libdir
+RL_INCLUDEDIR=$ac_cv_rl_includedir
+
+AC_MSG_RESULT($ac_cv_rl_version)
+
+fi
+])
diff --git a/examples/autoconf/wi_LIB_READLINE b/examples/autoconf/wi_LIB_READLINE
new file mode 100644
index 0000000..c738322
--- /dev/null
+++ b/examples/autoconf/wi_LIB_READLINE
@@ -0,0 +1,76 @@
+dnl Borut Razem
+dnl
+dnl This macro checks for the presence of the readline library.
+dnl It works also in cross-compilation environment.
+dnl
+dnl To get it into the aclocal.m4 dnl file, do this:
+dnl   aclocal -I . --verbose
+dnl
+dnl The --verbose will show all of the files that are searched
+dnl for .m4 macros.
+
+AC_DEFUN([wi_LIB_READLINE], [
+  dnl check for the readline.h header file
+
+  AC_CHECK_HEADER(readline/readline.h)
+
+  if test "$ac_cv_header_readline_readline_h" = yes; then
+    dnl check the readline version
+
+    cat > conftest.$ac_ext <<EOF
+#include <stdio.h>
+#include <readline/readline.h>
+wi_LIB_READLINE_VERSION RL_VERSION_MAJOR RL_VERSION_MINOR
+EOF
+
+    wi_READLINE_VERSION=$($CPP $CPPFLAGS conftest.$ac_ext | sed -n -e "s/^wi_LIB_READLINE_VERSION  *\([[0-9\]][[0-9\]]*\)  *\([[0-9\]][[0-9\]]*\)$/\1.\2/p")
+    rm -rf conftest*
+
+    if test -n "$wi_READLINE_VERSION"; then
+      wi_MAJOR=$(expr $wi_READLINE_VERSION : '\([[0-9]][[0-9]]*\)\.')
+      wi_MINOR=$(expr $wi_READLINE_VERSION : '[[0-9]][[0-9]]*\.\([[0-9]][[0-9]]*$\)')
+      if test $wi_MINOR -lt 10; then
+        wi_MINOR=$(expr $wi_MINOR \* 10)
+      fi
+      wi_READLINE_VERSION=$(expr $wi_MAJOR \* 100 + $wi_MINOR)
+    else
+      wi_READLINE_VERSION=-1
+    fi
+
+    dnl check for the readline library
+
+    ac_save_LIBS="$LIBS"
+    # Note: $LIBCURSES is permitted to be empty.
+
+    for LIBREADLINE in "-lreadline.dll" "-lreadline" "-lreadline $LIBCURSES" "-lreadline -ltermcap" "-lreadline -lncurses" "-lreadline -lcurses"
+    do
+      AC_MSG_CHECKING([for GNU Readline library $LIBREADLINE])
+
+      LIBS="$ac_save_LIBS $LIBREADLINE"
+
+      AC_TRY_LINK([
+        /* includes */
+        #include <stdio.h>
+        #include <readline/readline.h>
+      ],[
+        /* function-body */
+        int dummy = rl_completion_append_character; /* rl_completion_append_character appeared in version 2.1 */
+        readline(NULL);
+      ],[
+        wi_cv_lib_readline=yes
+        AC_MSG_RESULT(yes)
+      ],[
+        wi_cv_lib_readline=no
+        AC_MSG_RESULT(no)
+      ])
+
+      if test "$wi_cv_lib_readline" = yes; then
+        AC_SUBST(LIBREADLINE)
+        AC_DEFINE_UNQUOTED(HAVE_LIBREADLINE, $wi_READLINE_VERSION, [Readline])
+        break
+      fi
+    done
+
+    LIBS="$ac_save_LIBS"
+  fi
+])