]> wimlib.net Git - wimlib/blobdiff - configure.ac
Improve use of pkg-config
[wimlib] / configure.ac
index d84462d9feef89c7128ea6e30c5ad8a5bcf1a5f9..83369ea5cf925e550de15d9db5419f6f51c7a336 100644 (file)
@@ -1,45 +1,82 @@
-AC_INIT([wimlib], [0.7.1], [ebiggers3@gmail.com])
+AC_INIT([wimlib], [1.4.1], [ebiggers3@gmail.com])
 AC_CONFIG_SRCDIR([src/wim.c])
-AM_INIT_AUTOMAKE([-Wall -Werror])
 AC_CONFIG_MACRO_DIR([m4])
+AC_CONFIG_AUX_DIR([build-aux])
+AM_INIT_AUTOMAKE([-Wall -Werror subdir-objects])
 AC_C_BIGENDIAN
-AM_PROG_AR
+m4_ifdef([AM_PROG_AR], [AM_PROG_AR])
 LT_INIT
+
+PKGCONFIG_PRIVATE_REQUIRES=""
+PKGCONFIG_PRIVATE_LIBS=""
+
+AC_ARG_WITH(imagex-progname,
+            [AS_HELP_STRING([--with-imagex-progname=NAME],
+                           [Set the name of installed ImageX program (default: wimlib-imagex)])],
+            [IMAGEX_PROGNAME=$withval],
+            [IMAGEX_PROGNAME="wimlib-imagex"])
+
+AC_SUBST([IMAGEX_PROGNAME], [$IMAGEX_PROGNAME])
+AC_DEFINE_UNQUOTED([IMAGEX_PROGNAME], ["$IMAGEX_PROGNAME"],
+                  [Binary name for the implementation of ImageX distributed with wimlib])
+
 AC_CONFIG_HEADERS([config.h])
-AC_CONFIG_FILES([Makefile 
-               doc/Makefile 
-               doc/Doxyfile
-               src/Makefile 
-               programs/Makefile
-               wimlib.pc
-               doc/imagex.1
-               doc/imagex-append.1
-               doc/imagex-apply.1
-               doc/imagex-capture.1
-               doc/imagex-delete.1
-               doc/imagex-dir.1
-               doc/imagex-export.1
-               doc/imagex-info.1
-               doc/imagex-join.1
-               doc/imagex-mount.1
-               doc/imagex-mountrw.1
-               doc/imagex-split.1
-               doc/imagex-unmount.1
-               doc/mkwinpeimg.1
-               rpm/wimlib.spec
-               archlinux/PKGBUILD
-               ])
+AC_CONFIG_FILES([Makefile]
+               [doc/Doxyfile]
+               [wimlib.pc]
+               [doc/"$IMAGEX_PROGNAME".1:doc/imagex.1.in]
+               [doc/"$IMAGEX_PROGNAME"-append.1:doc/imagex-append.1.in]
+               [doc/"$IMAGEX_PROGNAME"-apply.1:doc/imagex-apply.1.in]
+               [doc/"$IMAGEX_PROGNAME"-capture.1:doc/imagex-capture.1.in]
+               [doc/"$IMAGEX_PROGNAME"-delete.1:doc/imagex-delete.1.in]
+               [doc/"$IMAGEX_PROGNAME"-dir.1:doc/imagex-dir.1.in]
+               [doc/"$IMAGEX_PROGNAME"-export.1:doc/imagex-export.1.in]
+               [doc/"$IMAGEX_PROGNAME"-extract.1:doc/imagex-extract.1.in]
+               [doc/"$IMAGEX_PROGNAME"-info.1:doc/imagex-info.1.in]
+               [doc/"$IMAGEX_PROGNAME"-join.1:doc/imagex-join.1.in]
+               [doc/"$IMAGEX_PROGNAME"-mount.1:doc/imagex-mount.1.in]
+               [doc/"$IMAGEX_PROGNAME"-mountrw.1:doc/imagex-mountrw.1.in]
+               [doc/"$IMAGEX_PROGNAME"-optimize.1:doc/imagex-optimize.1.in]
+               [doc/"$IMAGEX_PROGNAME"-split.1:doc/imagex-split.1.in]
+               [doc/"$IMAGEX_PROGNAME"-unmount.1:doc/imagex-unmount.1.in]
+               [doc/"$IMAGEX_PROGNAME"-update.1:doc/imagex-update.1.in]
+               [doc/mkwinpeimg.1])
+
+AC_CONFIG_FILES([programs/mkwinpeimg], [chmod +x programs/mkwinpeimg])
+
 AC_PROG_CC
+AM_PROG_CC_C_O
+AC_CANONICAL_HOST
 
+AC_CHECK_FUNCS([utimensat lutimes utime flock])
+
+# Note: some of the following header checks are only to define the appropriate
+# HAVE_*_H macro so that the NTFS-3g headers don't get confused and try to skip
+# including certain headers.
+AC_CHECK_HEADERS([alloca.h             \
+                 attr/xattr.h          \
+                 byteswap.h            \
+                 endian.h              \
+                 errno.h               \
+                 glob.h                \
+                 machine/endian.h      \
+                 stdarg.h              \
+                 stdlib.h              \
+                 sys/byteorder.h       \
+                 sys/endian.h          \
+                 sys/file.h            \
+                 sys/param.h           \
+                 sys/times.h           \
+                 time.h                \
+                 utime.h])
+
+AC_CHECK_MEMBER([struct stat.st_mtim],
+               [AC_DEFINE([HAVE_STAT_NANOSECOND_PRECISION], [1],
+                         [Define to 1 if nanosecond precision timestamps are
+                          supported])],
+               [],
+               [[#include <sys/stat.h>]])
 
-AM_ICONV
-if test "x$am_cv_func_iconv" != "xyes"; then
-       AC_MSG_ERROR([Cannot find the iconv() function.
-       iconv() is used to convert between UTF-8 and UTF-16 encodings of WIM
-       filenames and XML data.  Wimlib cannot be compiled without it.  iconv()
-       is available in the latest version of glibc and sometimes in other
-       libraries.])
-fi
 
 AC_ARG_WITH(pkgconfigdir,
             [  --with-pkgconfigdir=DIR      pkgconfig file in DIR @<:@LIBDIR/pkgconfig@:>@],
@@ -49,52 +86,50 @@ AC_SUBST(pkgconfigdir)
 
 AC_CHECK_LIB([xml2], [xmlParseFile], [have_libxml=true],
             [AC_MSG_ERROR(["cannot find libxml2"])])
-LIBXML2_LDADD=`pkg-config libxml-2.0 --libs`
-LIBXML2_CFLAGS=`pkg-config libxml-2.0 --cflags`
-AC_SUBST([LIBXML2_LDADD], [$LIBXML2_LDADD])
-AC_SUBST([LIBXML2_CFLAGS], [$LIBXML2_CFLAGS])
+PKG_CHECK_MODULES([LIBXML2], [libxml-2.0])
+PKGCONFIG_PRIVATE_REQUIRES="$PKGCONFIG_PRIVATE_REQUIRES libxml-2.0"
 
 AC_MSG_CHECKING([whether to include debugging messages])
-AC_ARG_ENABLE([debug], 
+AC_ARG_ENABLE([debug],
        AS_HELP_STRING([--enable-debug], [include lots of debugging messages]),
        [ENABLE_DEBUG=$enableval],
        [ENABLE_DEBUG=no]
        )
 AC_MSG_RESULT([$ENABLE_DEBUG])
 if test "x$ENABLE_DEBUG" = "xyes"; then
-       AC_DEFINE([ENABLE_DEBUG], [1], 
+       AC_DEFINE([ENABLE_DEBUG], [1],
                        [Define to 1 if including lots of debug messages.])
 fi
 
 AC_MSG_CHECKING([whether to include more debugging messages])
-AC_ARG_ENABLE([more_debug], 
-       AS_HELP_STRING([--enable-more-debug], 
+AC_ARG_ENABLE([more_debug],
+       AS_HELP_STRING([--enable-more-debug],
                        [include even more debugging messages]),
        [ENABLE_MORE_DEBUG=$enableval],
        [ENABLE_MORE_DEBUG=no]
        )
 AC_MSG_RESULT([$ENABLE_MORE_DEBUG])
 if test "x$ENABLE_MORE_DEBUG" = "xyes"; then
-       AC_DEFINE([ENABLE_MORE_DEBUG], [1], 
+       AC_DEFINE([ENABLE_MORE_DEBUG], [1],
                        [Define to 1 if including even more debug messages.])
 fi
 
 AC_MSG_CHECKING([whether to include error messages])
-AC_ARG_ENABLE([error_messages], 
-       AS_HELP_STRING([--disable-error-messages], 
+AC_ARG_ENABLE([error_messages],
+       AS_HELP_STRING([--disable-error-messages],
                        [do not compile in error messsages]),
        [ENABLE_ERROR_MESSAGES=$enableval],
        [ENABLE_ERROR_MESSAGES=yes]
        )
 AC_MSG_RESULT([$ENABLE_ERROR_MESSAGES])
 if test "x$ENABLE_ERROR_MESSAGES" = "xyes"; then
-       AC_DEFINE([ENABLE_ERROR_MESSAGES], [1], 
+       AC_DEFINE([ENABLE_ERROR_MESSAGES], [1],
                        [Define to 1 if including error messages])
 fi
 
 AC_MSG_CHECKING([whether to support custom memory allocation functions])
-AC_ARG_ENABLE([custom_memory_allocator], 
-       AS_HELP_STRING([--disable-custom-memory-allocator], 
+AC_ARG_ENABLE([custom_memory_allocator],
+       AS_HELP_STRING([--disable-custom-memory-allocator],
                       [do not support the use of custom memory allocation
                        functions]),
        [ENABLE_CUSTOM_MEMORY_ALLOCATOR=$enableval],
@@ -102,7 +137,7 @@ AC_ARG_ENABLE([custom_memory_allocator],
        )
 AC_MSG_RESULT([$ENABLE_CUSTOM_MEMORY_ALLOCATOR])
 if test "x$ENABLE_CUSTOM_MEMORY_ALLOCATOR" = "xyes"; then
-       AC_DEFINE([ENABLE_CUSTOM_MEMORY_ALLOCATOR], [1], 
+       AC_DEFINE([ENABLE_CUSTOM_MEMORY_ALLOCATOR], [1],
                [Define to 1 if supporting custom memory allocation functions])
 fi
 
@@ -117,14 +152,25 @@ if test "x$ENABLE_ASSERTIONS" = "xyes"; then
        AC_DEFINE([ENABLE_ASSERTIONS], [1], [Define to 1 if including assertions.])
 fi
 
+AC_MSG_CHECKING([whether to include more assertions])
+AC_ARG_ENABLE([more-assertions],
+       AS_HELP_STRING([--enable-more-assertions], [include even more assertions]),
+       [ENABLE_MORE_ASSERTIONS=$enableval],
+       [ENABLE_MORE_ASSERTIONS=no]
+       )
+AC_MSG_RESULT([$ENABLE_MORE_ASSERTIONS])
+if test "x$ENABLE_MORE_ASSERTIONS" = "xyes"; then
+       AC_DEFINE([ENABLE_MORE_ASSERTIONS], [1], [Define to 1 if including more assertions.])
+fi
+
 
 AC_MSG_CHECKING([whether to include compression verification])
 AC_ARG_ENABLE([verify_compression],
-             AS_HELP_STRING([--disable-verify-compression], [disable
-                               checking if blocks we compress can be correctly
+             AS_HELP_STRING([--enable-verify-compression], [always
+                               check if blocks we compress can be correctly
                                decompressed]),
        [ENABLE_VERIFY_COMPRESSION=$enableval],
-       [ENABLE_VERIFY_COMPRESSION=yes]
+       [ENABLE_VERIFY_COMPRESSION=no]
        )
 AC_MSG_RESULT([$ENABLE_VERIFY_COMPRESSION])
 if test "x$ENABLE_VERIFY_COMPRESSION" = "xyes"; then
@@ -132,27 +178,119 @@ if test "x$ENABLE_VERIFY_COMPRESSION" = "xyes"; then
                   compressed data])
 fi
 
-AC_MSG_CHECKING([whether to include support for copying security data])
-AC_ARG_ENABLE([security_data],
-             AS_HELP_STRING([--disable-security-data], [disable
-                               the ability to retain the security data of
-                               existing WIMs]),
-       [ENABLE_SECURITY_DATA=$enableval],
-       [ENABLE_SECURITY_DATA=yes]
+AC_MSG_CHECKING([whether to include support for multi-threaded compression])
+AC_ARG_ENABLE([multithreaded-compression],
+       AS_HELP_STRING([--disable-multithreaded-compression],
+                       [do not compile in the code for multi-threaded compression]),
+       [ENABLE_MULTITHREADED_COMPRESSION=$enableval],
+       [ENABLE_MULTITHREADED_COMPRESSION=yes]
        )
-AC_MSG_RESULT([$ENABLE_SECURITY_DATA])
-if test "x$ENABLE_SECURITY_DATA" = "xyes"; then
-       AC_DEFINE([ENABLE_SECURITY_DATA], [1], [Define to 1 to enable support
-                  for copying security data])
+AC_MSG_RESULT([$ENABLE_MULTITHREADED_COMPRESSION])
+if test "x$ENABLE_MULTITHREADED_COMPRESSION" = "xyes"; then
+       AC_DEFINE([ENABLE_MULTITHREADED_COMPRESSION], [1],
+                       [Define to 1 if including support for multithreaded
+                        compression])
+fi
+
+PTHREAD_LDADD="-lpthread"
+AC_SUBST([PTHREAD_LDADD], [$PTHREAD_LDADD])
+
+WITH_NTFS_3G_DEFAULT="yes"
+WITH_FUSE_DEFAULT="yes"
+WINDOWS_NATIVE_BUILD="no"
+VISIBILITY_CFLAGS="-fvisibility=hidden"
+WINDOWS_CFLAGS=""
+WINDOWS_CPPFLAGS=""
+WINDOWS_LDFLAGS=""
+WINDOWS_LDADD=""
+ENABLE_XATTR_DEFAULT="autodetect"
+
+case "$host" in
+       *-*-mingw*)
+               # Native Windows
+               WITH_NTFS_3G_DEFAULT="no"
+               WITH_FUSE_DEFAULT="no"
+               WINDOWS_NATIVE_BUILD="yes"
+               VISIBILITY_CFLAGS=""
+               WINDOWS_CFLAGS="-municode"
+               WINDOWS_CPPFLAGS="-D_POSIX -DUNICODE -D_UNICODE"
+               WINDOWS_LDFLAGS="-no-undefined"
+               WINDOWS_LDADD="-lshlwapi"
+               ENABLE_XATTR_DEFAULT="no"
+               ;;
+       *-*-cygwin*)
+               # Cygwin (WARNING: not well supported)
+               AC_MSG_WARN([wimlib has not been tested with Cygwin!  Please do
+                            a Windows-native build with MinGW-w64 instead])
+               WITH_NTFS_3G_DEFAULT="no"
+               WITH_FUSE_DEFAULT="no"
+               VISIBILITY_CFLAGS=""
+               ;;
+       *)
+               # UNIX / other
+               ;;
+esac
+
+AC_SUBST([VISIBILITY_CFLAGS], [$VISIBILITY_CFLAGS])
+AC_SUBST([WINDOWS_LDFLAGS], [$WINDOWS_LDFLAGS])
+AC_SUBST([WINDOWS_LDADD], [$WINDOWS_LDADD])
+AC_SUBST([WINDOWS_CPPFLAGS], [$WINDOWS_CPPFLAGS])
+AC_SUBST([WINDOWS_CFLAGS], [$WINDOWS_CFLAGS])
+AM_CONDITIONAL([WINDOWS_NATIVE_BUILD], [test "x$WINDOWS_NATIVE_BUILD" = "xyes"])
+
+AC_MSG_CHECKING([whether to include support for ntfs-3g])
+AC_ARG_WITH([ntfs-3g],
+             AS_HELP_STRING([--without-ntfs-3g], [build without NTFS-3g.
+                             On UNIX, this will disable the ability to use NTFS-specific
+                             information when capturing or applying WIMs to a
+                             NTFS filesystem.]),
+       [WITH_NTFS_3G=$withval],
+       [WITH_NTFS_3G=$WITH_NTFS_3G_DEFAULT]
+       )
+AC_MSG_RESULT([$WITH_NTFS_3G])
+if test "x$WITH_NTFS_3G" = "xyes"; then
+       AC_DEFINE([WITH_NTFS_3G], [1], [On UNIX, define to 1 to enable support
+                  for NTFS-specific information])
+
+       dnl This effectively checks for NTFS-3g 2011.4.12 or later
+       AC_CHECK_LIB([ntfs-3g], [ntfs_xattr_system_setxattr], [],
+                       [AC_MSG_ERROR([Cannot find libntfs-3g version 2011-4-12
+       or later. Without libntfs-3g, wimlib cannot include support for
+       capturing and applying WIMs on NTFS filesystems while preserving
+       NTFS-specific data such as security descriptors and alternate data
+       streams.  You should either install libntfs-3g, or configure with
+       --without-ntfs-3g to disable support for these NTFS-specific
+       features.])])
+
+       PKG_CHECK_MODULES([LIBNTFS_3G], [libntfs-3g])
+       PKGCONFIG_PRIVATE_REQUIRES="$PKGCONFIG_PRIVATE_REQUIRES libntfs-3g"
+
+       dnl This checks for a NTFS-3g interface that was changed in the
+       dnl 2013.1.13 release
+       AC_CHECK_DECL([NTFS_MNT_RDONLY],
+                     [AC_DEFINE([HAVE_NTFS_MNT_RDONLY],
+                                [1],
+                                [Define to 1 if ntfs_mount() takes the flag NTFS_MNT_RDONLY])],
+                     [],
+                     ,[#include <ntfs-3g/volume.h>])
+fi
+AM_CONDITIONAL([WITH_NTFS_3G], [test "x$WITH_NTFS_3G" = "xyes"])
+
+AM_ICONV
+if test "x$am_cv_func_iconv" != "xyes"; then
+       AC_MSG_ERROR([Cannot find the iconv() function.
+       iconv() is used to convert between encodings of WIM filenames and XML data.
+       wimlib cannot be compiled without it.  iconv() is available in the latest
+       version of glibc and sometimes in other libraries.])
 fi
 
 AC_MSG_CHECKING([whether to include support for mounting WIMs])
 AC_ARG_WITH([fuse],
-               AS_HELP_STRING([--without-fuse], [build without libfuse.  
-                                       This will disable the ability to mount 
+               AS_HELP_STRING([--without-fuse], [build without libfuse.
+                                       This will disable the ability to mount
                                        WIM files.]),
        [WITH_FUSE=$withval],
-       [WITH_FUSE=yes]
+       [WITH_FUSE=$WITH_FUSE_DEFAULT]
        )
 AC_MSG_RESULT([$WITH_FUSE])
 if test "x$WITH_FUSE" = "xyes"; then
@@ -160,26 +298,46 @@ if test "x$WITH_FUSE" = "xyes"; then
 
 
        AC_CHECK_LIB([fuse], [fuse_main_real], [have_fuse=true],
-                       [AC_MSG_ERROR([Cannot find libfuse.  
-       Without libfuse, WIMLIB cannot include support for mounting WIMs.  You
+                       [AC_MSG_ERROR([Cannot find libfuse.
+       Without libfuse, wimlib cannot include support for mounting WIMs.  You
        should either install libfuse, or configure with --without-fuse to
        disable support for mounting WIMs.])
        ])
        AC_CHECK_LIB([rt], [mq_open], [have_posix_mq=true],
                     [AC_MSG_ERROR([Cannot find librt for POSIX message queue
-       functions.  Without these functions, WIMLIB cannot include support for
+       functions.  Without these functions, wimlib cannot include support for
        mounting WIMs.  You should either update your C library to a recent
        version of glibc, or configure with --without-fuse to disable support
        for mounting WIMs.])
        ])
-       LIBFUSE_LDADD="`pkg-config --libs fuse` -lrt"
-       LIBFUSE_CFLAGS="`pkg-config --cflags fuse`"
-else
-       LIBFUSE_LDADD=
-       LIBFUSE_CFLAGS=
+       PKG_CHECK_MODULES([LIBFUSE], [fuse])
+       PKGCONFIG_PRIVATE_REQUIRES="$PKGCONFIG_PRIVATE_REQUIRES fuse"
+       PKGCONFIG_PRIVATE_LIBS="$PKGCONFIG_PRIVATE_LIBS -lrt"
+       AC_SUBST([LIBRT_LIBS], [-lrt])
+fi
+AM_CONDITIONAL([WITH_FUSE], [test "x$WITH_FUSE" = "xyes"])
+
+ENABLE_XATTR=no
+AC_ARG_ENABLE([xattr],
+       [AS_HELP_STRING([--enable-xattr], [Enable the xattr interface to access WIM
+                       alternate data streams (default: autodetect)])],
+       [ENABLE_XATTR=$enableval],
+       [if test "x$ENABLE_XATTR_DEFAULT" = "xautodetect"; then
+               AC_CHECK_FUNC([setxattr],
+                       [AC_CHECK_HEADER([attr/xattr.h],
+                               [ENABLE_XATTR=yes],
+                               [AC_MSG_WARN([Cannot find the "attr/xattr.h" header.  You will not be
+                                able to use the xattr interface to access WIM alternate data
+                                streams.])])],
+                       [AC_MSG_WARN([Cannot find the setxattr() function.  You will not be
+                        able to use the xattr interface to access WIM alternate data
+                        streams.])])
+       fi])
+
+if test "x$ENABLE_XATTR" = "xyes"; then
+       AC_DEFINE([ENABLE_XATTR], [1], [Define to 1 if using the xattr
+                       interface to WIM alternate data streams])
 fi
-AC_SUBST([LIBFUSE_LDADD], [$LIBFUSE_LDADD])
-AC_SUBST([LIBFUSE_CFLAGS], [$LIBFUSE_CFLAGS])
 
 AC_MSG_CHECKING([whether to use SSSE3-accelerated SHA1 ])
 AC_ARG_ENABLE([ssse3-sha1],
@@ -189,10 +347,10 @@ AC_ARG_ENABLE([ssse3-sha1],
        [ENABLE_SSSE3_SHA1=$enableval],
        [ENABLE_SSSE3_SHA1=no]
        )
-       
+
 AC_MSG_RESULT([$ENABLE_SSSE3_SHA1])
 if test "x$ENABLE_SSSE3_SHA1" = "xyes"; then
-       AC_DEFINE([ENABLE_SSSE3_SHA1], [1], 
+       AC_DEFINE([ENABLE_SSSE3_SHA1], [1],
                        [Define to 1 if using vectorized implementation of SHA1])
        SSSE3_SHA1_OBJ=sha1-ssse3.lo
        AX_PROG_NASM
@@ -210,7 +368,7 @@ else
                                        rather than use external libcrypto from
                                        OpenSSL (default is autodetect)]),
        [WITH_LIBCRYPTO=$withval],
-       [AC_CHECK_LIB([crypto], [SHA1], 
+       [AC_CHECK_LIB([crypto], [SHA1],
                     [WITH_LIBCRYPTO=yes],
                     [AC_MSG_WARN([Cannot find libcrypto: using stand-alone SHA1 code instead of OpenSSL])
                     WITH_LIBCRYPTO=no
@@ -221,17 +379,12 @@ AC_MSG_RESULT([$WITH_LIBCRYPTO])
 
 if test "x$WITH_LIBCRYPTO" = "xyes" -a "x$ENABLE_SSSE3_SHA1" = "xno"; then
        AC_DEFINE([WITH_LIBCRYPTO], [1], [Define to 1 if using libcrypto SHA1])
-       LIBCRYPTO_LDADD=`pkg-config --libs libcrypto 2>/dev/null`
-       if test $? -ne 0; then
-               LIBCRYPTO_LDADD=-lcrypto;
-       fi
-       LIBCRYPTO_CFLAGS=`pkg-config --cflags libcrypto 2>/dev/null`
-else
-       LIBCRYPTO_LDADD=
-       LIBCRYPTO_CFLAGS=
+       PKG_CHECK_MODULES([LIBCRYPTO], [libcrypto])
+       PKGCONFIG_PRIVATE_REQUIRES="$PKGCONFIG_PRIVATE_REQUIRES libcrypto"
 fi
-AC_SUBST([LIBCRYPTO_LDADD], [$LIBCRYPTO_LDADD])
-AC_SUBST([LIBCRYPTO_CFLAGS], [$LIBCRYPTO_CFLAGS])
 AC_SUBST([SHA1_SOURCES], [$SHA1_SOURCES])
 
+AC_SUBST([PKGCONFIG_PRIVATE_REQUIRES], [$PKGCONFIG_PRIVATE_REQUIRES])
+AC_SUBST([PKGCONFIG_PRIVATE_LIBS], [$PKGCONFIG_PRIVATE_LIBS])
+
 AC_OUTPUT