From 59665368eeebb728622a51ac1ea78b9d0dda4645 Mon Sep 17 00:00:00 2001
From: Timothy Stack <timothyshanestack@gmail.com>
Date: Tue, 20 Oct 2020 22:53:59 -0700
Subject: [PATCH] [autoconf] check for libarchive

---
 configure.ac               |  3 ++
 m4/lnav_with_libarchive.m4 | 77 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 80 insertions(+)
 create mode 100644 m4/lnav_with_libarchive.m4

diff --git a/configure.ac b/configure.ac
index 5253e970..a5cb0398 100644
--- a/configure.ac
+++ b/configure.ac
@@ -163,6 +163,7 @@ AS_VAR_IF([ax_cv_curses],[yes],[],
     AC_MSG_ERROR([requires an X/Open-compatible Curses library with color])dnl
 )
 
+AX_PATH_LIB_ARCHIVE
 AX_PATH_LIB_PCRE([], [AC_MSG_ERROR([pcre required to build])])
 AX_PATH_LIB_READLINE
 
@@ -186,6 +187,8 @@ AS_VAR_SET(static_lib_list,
            ["$static_lib_list libpcre.a libpcrecpp.a libncursesw.a libbz2.a"])
 AS_VAR_SET(static_lib_list,
            ["$static_lib_list libgpm.a libcurl.a libcrypto.a libssl.a libssh2.a"])
+AS_VAR_SET(static_lib_list,
+           ["$static_lib_list libarchive.a"])
 
 if test x"${enable_static}" != x"no"; then
     case "$host_os" in
diff --git a/m4/lnav_with_libarchive.m4 b/m4/lnav_with_libarchive.m4
new file mode 100644
index 00000000..a6fa4fde
--- /dev/null
+++ b/m4/lnav_with_libarchive.m4
@@ -0,0 +1,77 @@
+dnl
+dnl Copyright (c) 2020, Timothy Stack
+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_libarchive.m4
+dnl
+AC_DEFUN([AX_PATH_LIB_ARCHIVE],[dnl
+AC_MSG_CHECKING([lib archive])
+AC_ARG_WITH(libarchive,
+[  --with-libarchive[[=prefix]]],,
+     with_libarchive="yes")
+if test ".$with_libarchive" = ".no" ; then
+  AC_MSG_RESULT([disabled])
+  m4_ifval($2,$2)
+else
+  AC_MSG_RESULT([(testing)])
+  AC_CHECK_LIB(archive, archive_read_new)
+  AC_CHECK_HEADERS(archive.h)
+  if test "$ac_cv_lib_archive_archive_read_new" = "yes" && \
+     test "x$ac_cv_header_archive_h" = xyes; then
+     LIBARCHIVE_LIBS="-larchive"
+     AC_MSG_CHECKING([lib archive])
+     AC_MSG_RESULT([$LIBARCHIVE_LIBS])
+     m4_ifval($1,$1)
+  else
+     unset ac_cv_header_archive_h
+     OLDLDFLAGS="$LDFLAGS" ; LDFLAGS="$LDFLAGS -L$with_libarchive/lib"
+     OLDCPPFLAGS="$CPPFLAGS" ; CPPFLAGS="$CPPFLAGS -I$with_libarchive/include"
+     AC_CHECK_LIB(archive, archive_read_new)
+     AC_CHECK_HEADERS(archive.h)
+     CPPFLAGS="$OLDCPPFLAGS"
+     LDFLAGS="$OLDLDFLAGS"
+     if test "$ac_cv_lib_archive_archive_read_new" = "yes" && \
+        test "x$ac_cv_header_archive_h" = xyes; then
+        AC_MSG_RESULT(.setting LIBARCHIVE_LIBS -L$with_libarchive/lib -larchive)
+        LIBARCHIVE_LDFLAGS="-L$with_libarchive/lib"
+        LIBARCHIVE_LIBS="-larchive"
+        test -d "$with_libarchive/include" && LIBARCHIVE_CFLAGS="-I$with_libarchive/include"
+        AC_MSG_CHECKING([lib archive])
+        AC_MSG_RESULT([$LIBARCHIVE_LIBS])
+        m4_ifval($1,$1)
+     else
+        AC_MSG_CHECKING([lib archive])
+        AC_MSG_RESULT([[no]])
+        m4_ifval($2,$2)
+     fi
+  fi
+fi
+AC_SUBST([LIBARCHIVE_LIBS])
+AC_SUBST([LIBARCHIVE_LDFLAGS])
+AC_SUBST([LIBARCHIVE_CFLAGS])
+])
+