2 dnl @synopsis ST_LIB_ARCHIVE([ENABLED-DEFAULT])
4 dnl This macro figures out what's necessary to link a program against an
5 dnl instance of the BSD libarchive package by Tim Kientzle.
7 dnl See http://people.freebsd.org/~kientzle/libarchive/ for more info.
9 dnl It exports and substitutes the variables LIBARCHIVE_LIBS, LIBARCHIVE_LDFLAGS,
10 dnl and LIBARCHIVE_CPPFLAGS to appropriate values for the identified instance of
11 dnl libarchive. The values are AC_SUBST'd, so a user could, for example, simply
12 dnl include @LIBARCHIVE_CPPFLAGS@ in the definition of AM_CPPFLAGS in a Makefile.am.
14 dnl ENABLED-DEFAULT is either "yes" or "no" and determines whether the default value
15 dnl is --with-libarchive or --without-libarchive. It is not possible to specify a
16 dnl default directory. More simply, any reasonable choice for a default should just
17 dnl go into the auto-detect list.
19 dnl The macro defines the symbol HAVE_LIBARCHIVE if the library is found. You
20 dnl should use autoheader to include a definition for this symbol in a config.h
21 dnl file. Sample usage in a C/C++ source is as follows:
23 dnl #ifdef HAVE_LIBARCHIVE
24 dnl #include <archive.h>
25 dnl #endif /* HAVE_LIBARCHIVE */
27 dnl @category InstalledPackages
28 dnl @author Andre Stechert <andre@splunk.com>
29 dnl @version 2006-04-20
30 dnl @license GPLWithACException
32 AC_DEFUN([ST_LIB_ARCHIVE],
35 # Handle input from the configurer and blend with the requirements from the maintainer.
36 # We go through the trouble of creating a second set of variables other than the with_foo
37 # variables in order to be sure that error/corner cases have been cleaned up.
39 # After this statement, three trusted variable are defined.
41 # st_lib_archive_ENABLED will be either "yes" or "no". its value determines whether
42 # or not we bother with the rest of the checks and whether or not we export a
45 # st_lib_archive_LOCATION will be either "auto" or "defined". if it is "auto", then
46 # we try a bunch of standard locations. if it is "defined", then we just try the value
47 # provided in st_lib_archive_DIR.
49 # st_lib_archive_DIR will contain the string provided by the user, provided that it's
50 # actually a directory.
52 AC_MSG_CHECKING([if libarchive is wanted])
53 AC_ARG_WITH([libarchive],
54 AS_HELP_STRING([--with-libarchive=DIR], [libarchive installation directory]),
55 [if test "x$with_libarchive" = "xno" ; then
56 st_lib_archive_ENABLED=no
57 elif test "x$with_libarchive" = "xyes" ; then
58 st_lib_archive_ENABLED=yes
59 st_lib_archive_LOCATION=auto
61 st_lib_archive_ENABLED=yes
62 st_lib_archive_LOCATION=defined
63 if test -d "$with_libarchive" ; then
64 st_lib_archive_DIR="$with_libarchive"
66 AC_MSG_ERROR([$with_libarchive is not a directory])
69 [if test "x$1" = "xno" ; then
70 st_lib_archive_ENABLED=no
71 elif test "x$1" = "xyes" ; then
72 st_lib_archive_ENABLED=yes
74 st_lib_archive_ENABLED=yes
77 if test "$st_lib_archive_ENABLED" = "yes" ; then
80 # After this statement, one trusted variable is defined.
82 # st_lib_archive_LIB will be either "lib" or "lib64", depending on whether the configurer
83 # specified 32, 64. The default is "lib".
85 AC_MSG_CHECKING([whether to use lib or lib64])
86 AC_ARG_WITH([libarchive-bits],
87 AS_HELP_STRING([--with-libarchive-bits=32/64], [if 64, look in /lib64 on hybrid systems]),
88 [if test "x$with_libarchive_bits" = "x32" ; then
89 st_lib_archive_LIB=lib
90 elif test "x$with_libarchive_bits" = "x64" ; then
91 st_lib_archive_LIB=lib64
93 AC_MSG_ERROR([the argument must be either 32 or 64])
95 [st_lib_archive_LIB=lib])
96 AC_MSG_RESULT($st_lib_archive_LIB)
98 # Save the environment before verifying libarchive availability
100 st_lib_archive_SAVECPPFLAGS="$CPPFLAGS"
101 st_lib_archive_SAVELDFLAGS="$LDFLAGS"
105 if test "x$st_lib_archive_LOCATION" = "xdefined" ; then
106 CPPFLAGS="-I$st_lib_archive_DIR/include $st_lib_archive_SAVECPPFLAGS"
107 LDFLAGS="-L$st_lib_archive_DIR/$st_lib_archive_LIB $st_lib_archive_SAVELDFLAGS"
108 AC_CHECK_LIB(archive, archive_read_new, [st_lib_archive_found_lib=yes], [st_lib_archive_found_lib=no])
109 AC_CHECK_HEADER(archive.h, [st_lib_archive_found_hdr=yes], [st_lib_archive_found_hdr=no])
110 if test "x$st_lib_archive_found_lib" = "xyes" && test "x$st_lib_archive_found_hdr" = "xyes"; then
111 LIBARCHIVE_CPPFLAGS="-I$dir/include"
112 LIBARCHIVE_LDFLAGS="-L$dir/$st_lib_archive_LIB"
114 AC_MSG_ERROR([could not find libarchive in the requested location])
118 # These are the common install directories for Linux, FreeBSD, Solaris, and Mac.
120 for dir in /usr /usr/local /usr/sfw /opt/csw /opt/local /sw
122 if test -d "$dir" ; then
123 CPPFLAGS="-I$dir/include $st_lib_archive_SAVECPPFLAGS"
124 LDFLAGS="-L$dir/$st_lib_archive_LIB $st_lib_archive_SAVELDFLAGS"
125 AC_CHECK_LIB(archive, archive_read_new, [st_lib_archive_found_lib=yes], [st_lib_archive_found_lib=no])
126 AC_CHECK_HEADER(archive.h, [st_lib_archive_found_hdr=yes], [st_lib_archive_found_hdr=no])
127 if test "x$st_lib_archive_found_lib" = "xyes" && test "x$st_lib_archive_found_hdr" = "xyes"; then
128 LIBARCHIVE_CPPFLAGS="-I$dir/include"
129 LIBARCHIVE_LDFLAGS="-L$dir/$st_lib_archive_LIB"
136 if test "x$st_lib_archive_found_hdr" = "xyes" && test "x$st_lib_archive_found_lib" = "xyes" ; then
137 LIBARCHIVE_LIBS="-larchive"
138 AC_DEFINE([HAVE_LIBARCHIVE], [1], [Defined to 1 if libarchive is available for use.])
139 AC_SUBST(LIBARCHIVE_LIBS)
140 AC_SUBST(LIBARCHIVE_CPPFLAGS)
141 AC_SUBST(LIBARCHIVE_LDFLAGS)
145 # Restore the environment now that we're done.
148 CPPFLAGS="$st_lib_archive_SAVECPPFLAGS"
149 LDFLAGS="$st_lib_archive_SAVELDFLAGS"
153 AM_CONDITIONAL(LIBARCHIVE, test "x$st_lib_archive_found_lib" = "xyes" && test "x$st_lib_archive_found_hdr" = "xyes")