Move readline to the readline/readline subdirectory

[deliverable/binutils-gdb.git] / readline / readline / examples / autoconf / RL_LIB_READLINE_VERSION

diff --git a/readline/readline/examples/autoconf/RL_LIB_READLINE_VERSION b/readline/readline/examples/autoconf/RL_LIB_READLINE_VERSION
new file mode 100644 (file)
index 0000000..883942c
--- /dev/null
+++ b/readline/readline/examples/autoconf/RL_LIB_READLINE_VERSION
@@ -0,0 +1,118 @@
+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${ac_cv_rl_libdir}"
+
+AC_CACHE_VAL(ac_cv_rl_version,
+[AC_TRY_RUN([
+#include <stdio.h>
+#include <readline/readline.h>
+
+extern int rl_gnu_readline_p;
+
+main()
+{
+       FILE *fp;
+       fp = fopen("conftest.rlv", "w");
+       if (fp == 0)
+               exit(1);
+       if (rl_gnu_readline_p != 1)
+               fprintf(fp, "0.0\n");
+       else
+               fprintf(fp, "%s\n", rl_library_version ? rl_library_version : "0.0");
+       fclose(fp);
+       exit(0);
+}
+],
+ac_cv_rl_version=`cat conftest.rlv`,
+ac_cv_rl_version='0.0',
+ac_cv_rl_version='4.2')])
+
+CFLAGS="$_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
+])