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Diffstat (limited to 'm4/lnav_with_readline.m4')
| -rw-r--r-- | m4/lnav_with_readline.m4 | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/m4/lnav_with_readline.m4 b/m4/lnav_with_readline.m4 new file mode 100644 index 0000000..217391c --- /dev/null +++ b/m4/lnav_with_readline.m4 @@ -0,0 +1,95 @@ +dnl +dnl Copyright (c) 2007-2015, Timothy Stack +dnl Copyright (c) 2015, Suresh Sundriyal +dnl +dnl All rights reserved. +dnl +dnl Redistribution and use in source and binary forms, with or without +dnl modification, are permitted provided that the following conditions are met: +dnl +dnl dnl Redistributions of source code must retain the above copyright notice, this +dnl list of conditions and the following disclaimer. +dnl dnl Redistributions in binary form must reproduce the above copyright notice, +dnl this list of conditions and the following disclaimer in the documentation +dnl and/or other materials provided with the distribution. +dnl dnl Neither the name of Timothy Stack nor the names of its contributors +dnl may be used to endorse or promote products derived from this software +dnl without specific prior written permission. +dnl +dnl THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ''AS IS'' AND ANY +dnl EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +dnl WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +dnl DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY +dnl DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +dnl (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; +dnl LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON +dnl ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +dnl (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS +dnl SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +dnl +dnl @file lnav_with_readline.m4 +dnl +AC_DEFUN([AX_PATH_LIB_READLINE], + [dnl + AC_REQUIRE([AX_WITH_CURSES]) + AC_MSG_CHECKING([lib readline]) + AC_ARG_WITH([readline], + AS_HELP_STRING([--with-readline@<:@=prefix@:>@],dnl + [compile xmlreadline part (via libreadline check)]), + [], + [with_readline="yes"] + )dnl + + AS_VAR_SET(saved_CFLAGS, $CFLAGS) + AS_VAR_SET(saved_CPPFLAGS, $CPPFLAGS) + AS_VAR_SET(saved_LDFLAGS, $LDFLAGS) + AS_VAR_SET(saved_LIBS, $LIBS) + AS_CASE(["$with_readline"], + [no], + AC_MSG_ERROR([readline required to build]), + [yes], + [], + [dnl + AS_VAR_SET([READLINE_CFLAGS], ["-I$with_readline/include"]) + AS_VAR_SET([READLINE_LDFLAGS], ["-L$with_readline/lib"]) + LNAV_ADDTO(CFLAGS, [-I$with_readline/include]) + LNAV_ADDTO(CPPFLAGS, [-I$with_readline/include]) + dnl We want the provided path to be the first in the search order. + LDFLAGS="-L$with_readline/lib $LDFLAGS" + ]dnl + ) + + AC_SEARCH_LIBS([readline], [readline], + [AS_VAR_SET([READLINE_LIBS], ["-lreadline"])], + [AC_MSG_ERROR([libreadline library not found])], + [$CURSES_LIB]dnl + )dnl + + dnl Ensure that the readline library has the required symbols. + dnl i.e. We haven't picked up editline. + AC_SEARCH_LIBS([history_set_history_state], [readline], + [], + AC_MSG_ERROR([libreadline does not have the required symbols. editline possibly masquerading as readline.]), + [$CURSES_LIB]dnl + ) + + AC_CHECK_HEADERS([readline.h readline/readline.h], + [dnl + AS_VAR_SET([HAVE_READLINE_HEADERS], [1]) + break + ]dnl + ) + + AS_VAR_SET_IF([HAVE_READLINE_HEADERS], [], + [AC_MSG_ERROR([readline headers not found])] + ) + AS_VAR_SET(CFLAGS, $saved_CFLAGS) + AS_VAR_SET(CPPFLAGS, $saved_CPPFLAGS) + AS_VAR_SET(LDFLAGS, $saved_LDFLAGS) + AS_VAR_SET(LIBS, $saved_LIBS) + + AC_SUBST([READLINE_LIBS]) + AC_SUBST([READLINE_CFLAGS]) + AC_SUBST([READLINE_LDFLAGS]) + ]dnl +)dnl |