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Member "s-nail-14.9.11/make.rc" (8 Aug 2018, 20055 Bytes) of package /linux/misc/s-nail-14.9.11.tar.xz:


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    1 #@ make.rc defines the set of features and values used.
    2 #@ Reading INSTALL first is beneficial.
    3 #@
    4 #@ - Choosing a predefined CONFIG= disallows further option fine-tuning.
    5 #@   (With some exceptions, e.g., OPT_DEBUG.)
    6 #@
    7 #@ - Specifying settings on the command line will take precedence over
    8 #@   the variables in here (correctly triggering build updates as
    9 #@   necessary, too).
   10 #@
   11 #@ - Features / options have an OPT_ prefix and usually need to be
   12 #@   assigned a boolean value, as in OPT_IDNA=yes.  Booleans are 1/0,
   13 #@   y/n, true/false, yes/no and on/off (case doesn't matter).
   14 #@
   15 #@   The value "require" is also a true boolean, but will in addition
   16 #@   cause configuration to fail if the requested condition cannot be
   17 #@   satisfied.  This functionality is available where documented.
   18 #@
   19 #@ - Values have a VAL_ prefix, and are assigned strings, for example
   20 #@       VAL_PREFIX="/usr/local"
   21 #@
   22 #@   Values which are only used during configuration, building, and / or
   23 #@   installation have no prefix, e.g., DESTDIR, VERBOSE, awk, sed etc.
   24 #@
   25 #@   Some values exist which offer "multiple choice", e.g., VAL_RANDOM
   26 #@   (without accompanying feature option) and VAL_IDNA (with OPT_IDNA).
   27 #@   This is used if different implementations exist, and can then be
   28 #@   used to choose the desired one(s).
   29 #@   The value must be a comma separated list of strings, for example
   30 #@   "idn2,idn,idnkit", the case is ignored, but the order is important.
   31 #@   The special strings "all" and "any" as well as the empty value
   32 #@   are wildcard matches; if any entry in the list is a wildcard match,
   33 #@   the entire list is ignored.
   34 #@   The special string "error" will abort configuration once its list
   35 #@   position is reached; this is only supported if documented, and not
   36 #@   with an accompanying OPT_ (which then offers "require", as above).
   37 #@
   38 #@ - This file is parsed by the shell: it is in sh(1), not in make(1)
   39 #@   syntax.  Evaluation occurs *after* it has been read, so command
   40 #@   line overwrites take effect.  To use multiline values, escape the
   41 #@   newlines on all lines but the last with a reverse solidus (back-
   42 #@   slash), as in "LINE \".
   43 #@   To embed a shell variable unexpanded, use two: "XY=\\${HOME}".
   44 #@   The parsing is sequential top-to-bottom (nonetheless), so that
   45 #@   shell snippets in a value can refer only to stuff yet defined.
   46 #@
   47 #@ - You may NOT comment out anything in here -- if you want to disable
   48 #@   a feature, set it to a false boolean.
   49 
   50 ## IDENTITIES, PATHS AND PROGRAMS ##
   51 
   52 # Contact info (*contact-mail* and *contact-web*, respectively).
   53 VAL_CONTACT_MAIL=s-mailx@lists.sdaoden.eu
   54 VAL_CONTACT_WEB=https://www.sdaoden.eu/code.html
   55 
   56 # The user ID our small privilege-separated helper program will be
   57 # SETUID to, shall it be included ($OPT_DOTLOCK).
   58 # Installation will then require the chown(1) program (as below) and
   59 # sufficient privileges to perform a SETUID to this user ID.
   60 VAL_PRIVSEP_USER=root
   61 
   62 # General prefix where S-nail should be installed.
   63 VAL_PREFIX=/usr/local
   64 
   65 # Fine tune individual locations, normally under $VAL_PREFIX.
   66 # . the place of the S-nail program.
   67 VAL_BINDIR="${VAL_PREFIX}/bin"
   68 # . the place of the privilege-separated helper program, the name
   69 #   of which is [$VAL_SID$VAL_MAILX]-privsep (see below for $VAL_SID &
   70 #   $VAL_MAILX).
   71 #   (Only with $OPT_DOTLOCK.)
   72 VAL_LIBEXECDIR="${VAL_PREFIX}/libexec"
   73 # . of the manual.
   74 VAL_MANDIR="${VAL_PREFIX}/share/man"
   75 # . of the exemplary resource file.
   76 VAL_SYSCONFDIR="${VAL_PREFIX}/etc"
   77 
   78 # The variable $DESTDIR is prepended to all the paths from above at
   79 # installation time; this feature can be used for, e.g., package
   80 # building: if $VAL_PREFIX is "/usr/local", but $DESTDIR is set to "here",
   81 # then S-nail will still think its $VAL_PREFIX is "/usr/local" whereas the
   82 # build system will instead use "here/usr/local".
   83 # NOTE: it cannot be set in here, but must be given on the command line
   84 # when invoking the "install" make(1) (directly or indirectly).
   85 # (That is, if you uncomment it, it'll be update-tracked...)
   86 #DESTDIR=
   87 
   88 # Where the local mail system stores user $MAIL files.
   89 VAL_MAIL=`\
   90    if [ -d /var/spool/mail ]; then \
   91       echo /var/spool/mail;\
   92    else \
   93       echo /var/mail;\
   94    fi`
   95 
   96 # Path to the local MTA (Mail-Transfer-Agent).
   97 VAL_MTA=`\
   98    if [ -x /usr/bin/sendmail ]; then \
   99       echo /usr/bin/sendmail;\
  100    elif [ -x /usr/lib/sendmail ]; then \
  101       echo /usr/lib/sendmail;\
  102    else \
  103       echo /usr/sbin/sendmail;\
  104    fi`
  105 
  106 # Today a lot of systems no longer use sendmail(1), but a different MTA.
  107 # To ensure compatibility with sendmail(1), a system called
  108 # mailwrapper(8) is often used, which selects the required service by
  109 # looking at the name by which the program actually has been invoked.
  110 # This variable can be used to adjust this name as necessary.
  111 VAL_MTA_ARGV0=sendmail
  112 
  113 # Default $SHELL (sh(1) path).
  114 # Sometimes we simply invoke a command directly via execlp(2) instead of
  115 # indirectly through *SHELL* -- in these cases execlp(2) may fallback to
  116 # it's own built-in sh(1) path.
  117 VAL_SHELL=/bin/sh
  118 
  119 # Some more default fallback values, some of which are standardized
  120 # and (thus)/or documented in the manual (changes not reflected there!).
  121 # Note that default paths are often not (shell) quoted when displayed.
  122 VAL_DEAD_BASENAME=dead.letter
  123 VAL_DEAD="~/${VAL_DEAD_BASENAME}"
  124 VAL_EDITOR=ed
  125 VAL_LISTER=ls
  126 VAL_MAILRC=~/.mailrc
  127 VAL_MBOX=~/mbox
  128 VAL_NETRC=~/.netrc
  129 VAL_PAGER=more
  130 VAL_TMPDIR=/tmp
  131 VAL_VISUAL=vi
  132 
  133 # Default locations of mime.types(5).
  134 VAL_MIME_TYPES_USR=~/.mime.types
  135 VAL_MIME_TYPES_SYS=/etc/mime.types
  136 
  137 # The following tools may be provided a.k.a. overwritten,
  138 # `command -v NAME` is used to query the utility otherwise:
  139 #  MAKE=, STRIP=, awk=, basename=, cat=, chmod=, cp=, cmp=, cksum=,
  140 #     grep=, mkdir=, mv=, pwd=, rm=, sed=, sort=, tee=, tr=, uname=
  141 # Usually in administrator paths:
  142 #  chown= [$OPT_DOTLOCK]
  143 # Note that awk(1), rm(1), tr(1) and uname(1) are needed before this
  144 # file is read, all other utilities will be checked afterwards only.
  145 # uname(1) is in fact needed before the initial OS setup and thus no OS
  146 # specific adjustments (e.g., $PATH) have been performed yet, but its
  147 # use can be circumvented by setting $OS (uname -s) and $OSFULLSPEC
  148 # (uname -a: this is not baked into the binary, it is only used to
  149 # recognize build environment changes).
  150 # Due to the evaluation order of the build system all those programs are
  151 # usually needed, but by setting any of the variables to true(1), as in
  152 # chown=/usr/bin/true, availability of unneeded programs can be faked.
  153 
  154 ## FEATURE SET ##
  155 
  156 # Some operating systems only support the C/POSIX (7-bit, but eight bit
  157 # bytes are passed through unchanged) and UTF-8 based locales, e.g.,
  158 # Plan9, Musl based Linux variants and newer OpenBSD.  For such
  159 # environments we can avoid a lot of tests and may enable support for
  160 # features which would otherwise not be available.
  161 # Note: $OS is available as normalized all-lowercase upon evaluation.
  162 OPT_ALWAYS_UNICODE_LOCALE=`\
  163    if [ "${OS}" = openbsd ] || [ -f /lib/ld-musl-x86_64.so.1 ]; then \
  164       echo yes;\
  165    else \
  166       echo no;\
  167    fi`
  168 
  169 # For cross-compilation purposes it may be useful to not actually run
  170 # systemcall etc. tests (link and run the executable) but only to
  171 # perform the link tests necessary to detect host environment.
  172 OPT_CROSS_BUILD=no
  173 
  174 # Whether package system, for example pkgsrc(7) on NetBSD and more,
  175 # OpenCSW on SunOS/Solaris, etc., specific paths shall be automatically
  176 # included in $C_INCLUDE_PATH and $LD_LIBRARY_PATH when seen?
  177 OPT_USE_PKGSYS=yes
  178 
  179 # Shall S-nail try to automatically detect a compiler and detect and
  180 # provide a set of known-good compiler flags?  It will use $CC if this
  181 # variable is set, otherwise a compiler is actively searched for.
  182 # If this option is chosen additions to flags may still be provided
  183 # by setting $EXTRA_CFLAGS and $EXTRA_LDFLAGS to whatever is desired.
  184 # Thus: set this to false and use your normal $CC / $CFLAGS / $LDFLAGS,
  185 # otherwise pass additional flags via $EXTRA_CFLAGS / $EXTRA_LDFLAGS:
  186 #     $ make EXTRA_CFLAGS=-std=c99 tangerine
  187 # Whatever you do, the configuration is fixated and updates will force
  188 # rebuilds.  And far below in this file there is $OPT_FORCED_STACKPROT,
  189 # too, which can be used to cause injection of stack protectors, but
  190 # which normally happens for development and debug builds only.
  191 # (Remember, file is parsed from top to bottom, sorry.)
  192 OPT_AUTOCC=yes
  193 
  194 # It is possible to compile S-nail as a "single-source", meaning that
  195 # all source files are injected into a single compilation unit, which is
  196 # then compiled.  This allows the compiler to perform much more
  197 # optimizations, and also reduces the management overhead that is used
  198 # for / needed by the linker.
  199 OPT_AMALGAMATION=no
  200 
  201 # Character set conversion enables reading and sending of mails in
  202 # multiple character sets through usage of the iconv(3) library.  Please
  203 # read the manual section "Character sets" for the complete picture.
  204 # This should usually be enabled; it can be "require"d.
  205 OPT_ICONV=yes
  206 
  207 # Whether support for Maildir E-mail directories shall be enabled.
  208 OPT_MAILDIR=yes
  209 
  210 # Major switch to toggle *all* network related protocols
  211 # (POP3,SMTP,IMAP) and related/dependent stuff (GSS-API,TLS);
  212 # can be "require"d.
  213 OPT_SOCKETS=yes
  214 
  215 # If $OPT_SOCKETS: support for Secure Socket Layer (Transport Layer
  216 # Security, TLS), i.e., encrypted socket connections; can be "require"d.
  217 # It also automatically enables support for S/MIME message signing,
  218 # verification, en- and decryption.
  219 # This needs the OpenSSL (https://www.openssl.org) or LibreSSL
  220 # (http://www.libressl.org) libraries.
  221 OPT_TLS=yes
  222 
  223 # If $OPT_TLS: shall S-nail (try to) use mechanisms to support more
  224 # digest and cipher algorithms than the few that are documented?  For
  225 # S/MIME *smime-cipher* for example this will cause
  226 # EVP_get_cipherbyname(3) to be tried shall the (S-nail-) built-in
  227 # knowledge not suffice to understand the user request.  Will create
  228 # a large statically linked binary; dynamically linked the costs only
  229 # arise once the extended lookup is actually needed (the first time).
  230 # Some TLS libraries will always support all algorithms.
  231 # This can be "require"d.
  232 OPT_TLS_ALL_ALGORITHMS=yes
  233 
  234 # If $OPT_SOCKETS: support for SMTP protocol?
  235 # (Directly sending mails over the network)  Can be "require"d.
  236 OPT_SMTP=yes
  237 
  238 # If $OPT_SOCKETS: support for POP3 protocol?
  239 # (Download of mails via POP protocol)  Can be "require"d.
  240 OPT_POP3=yes
  241 
  242 # If $OPT_SOCKETS: support for IMAP protocol?
  243 # Requires $OPT_ICONV unless $OPT_ALWAYS_UNICODE_LOCALE, in which case
  244 #  it only warns.
  245 # (Reading of mails directly on the server)  Can be "require"d.
  246 OPT_IMAP=yes
  247 
  248 # If $OPT_SOCKETS: support for GSS-API (Generic Security Services
  249 # Application Programming Interface) based authentication, e.g.,
  250 # Kerberos v5?  Available for IMAP and SMTP; can be "require"d.
  251 OPT_GSSAPI=yes
  252 
  253 # Enabling the MD5 message digest adds support for several
  254 # authentication possibilities: POP3 (APOP), IMAP and SMTP (CRAM-MD5).
  255 # If you don't need those, you may turn them off by excluding MD5.
  256 OPT_MD5=yes
  257 
  258 # If $OPT_SOCKETS: support for parsing of user and password credentials
  259 # from the ~/.netrc file ($NETRC; see *netrc-lookup* manual entry).
  260 OPT_NETRC=yes
  261 
  262 # If $OPT_SOCKETS: passwords can also be looked up through an external
  263 # "agent" in order to allow for encrypted password storage (see
  264 # *agent-shell-lookup*).
  265 # [Obsolete] Even though marked *v15-compat* this feature has been
  266 # obsoleted; please use an encrypted .netrc file (via *netrc-pipe*) or
  267 # encrypt a complete resource file and load this like, e.g.,
  268 #     source "gpg -qd ~/.mailprivate.gpg | "
  269 OPT_AGENT=yes
  270 
  271 # IDNA (internationalized domain names for applications) offers users
  272 # the possibility to use domain names in their native language, i.e., to
  273 # use non-US-ASCII content, as in, e.g., <www.räksmörgåsa.example>,
  274 # which the IDNA algorithm would convert to
  275 # <www.xn--rksmrgsa-0zap8p.example>.  :)
  276 # Multiple implementations are supported:
  277 # . idnkit - idnkit, https://www.nic.ad.jp/ja/idn/idnkit/download,
  278 #     either of version 1 for IDNA 2003 or version 2 for IDNA 2008.
  279 # . idn2 - GNU Libidn2 for IDNA 2008, https://www.gnu.org/software/libidn/,
  280 # . idn - GNU Libidn for IDNA 2003, same,
  281 # OPT_IDNA can be "require"d.
  282 OPT_IDNA=yes
  283 VAL_IDNA="idnkit,idn2,idn"
  284 
  285 # IMAP-style SEARCH expressions can be supported.  This addressing mode
  286 # is available with all types of folders; for folders not located on
  287 # IMAP servers, or for servers unable to execute the SEARCH command, the
  288 # search is performed locally.
  289 OPT_IMAP_SEARCH=yes
  290 
  291 # Several different P(seudo) R(andom number) G(enerator) possibilities.
  292 # No need for somewhat strong random is necessary.
  293 # The following will be used as sole PRG implementations.
  294 # . arc4 - we search for arc4random(3).
  295 # . tls - if OPT_TLS is available the PRG of the TLS library can be used.
  296 # The following will only be used to seed our builtin ARC4 PRG.
  297 # . libgetrandom - getrandom(3) via C library.
  298 # . sysgetrandom - getrandom(2) via SYSCALL.
  299 # . urandom - reading from /dev/urandom.
  300 # . builtin - a builtin ARC4 implementation with unscientific seeding.
  301 # . (error - bail out)
  302 VAL_RANDOM="arc4,tls,libgetrandom,sysgetrandom,urandom,builtin"
  303 
  304 # Regular expression (re_format(7)) support for searches, conditional
  305 # expressions etc., we use the extended ones, then; can be "require"d.
  306 OPT_REGEX=yes
  307 
  308 # Line editing and -history (manual "On terminal and line editor").
  309 # . OPT_MLE
  310 #   If ISO C (ISO/IEC 9899:1990/Amendment 1:1995) is supported on the
  311 #   system then our built-in MLE (Mailx-Line-Editor) version can be used.
  312 #   An enabled & available OPT_TERMCAP may affect and improve the MLE.
  313 #   Can be "require"d.
  314 OPT_MLE=yes
  315 # Add support for history management.
  316 OPT_HISTORY=yes
  317 # Add support for `(un)?bind'ing of key sequences.
  318 OPT_KEY_BINDINGS=yes
  319 
  320 # Use termcap(5) for terminal control; can be "require"d.
  321 # Today most environments ship a termcap(5) that in fact is part of
  322 # terminfo(5), and acts as a converting wrapper for this library.
  323 # To avoid this redundancy we also support terminfo(5), and use it
  324 # instead if we find it (assuming that termcap(5) is a stub, then).
  325 # Note that terminfo(5) offers access to more key sequences, e.g.,
  326 # kLFT5, for which no termcap(5) entry exists.
  327 # terminfo(5) support can (thus) be "require"d.
  328 OPT_TERMCAP=yes
  329 OPT_TERMCAP_VIA_TERMINFO=yes
  330 
  331 # Enable the `errors' command; S-nail is a console-based application and
  332 # thus errors may fly by pretty fast as other operations are in
  333 # progress; or $PAGERs are started and clear errors off the screen.  If
  334 # enabled errors are duplicated as they happen and the `errors' command
  335 # will show them when asked to.
  336 OPT_ERRORS=yes
  337 
  338 # We may include `help' etc. strings for commands, increasing size a bit.
  339 OPT_DOCSTRINGS=yes
  340 
  341 # It is possible to strip out (almost) all user interface and error messages.
  342 # This might be interesting for automated use cases (only).
  343 OPT_UISTRINGS=yes
  344 
  345 # Interaction with a spam email filter is possible.
  346 # Refer to all commands and variables with a "spam" prefix, and
  347 # see the manual example section "Handling spam".
  348 # . OPT_SPAM_SPAMC:
  349 #   Support for interaction with spamassassin(1)s spamc(1).
  350 # . [Obsolete] OPT_SPAM_SPAMD:
  351 #   Direct communication with spamassassin(1)s spamd(1).
  352 #   Needs unix(4) domain sockets (checked).  Can be "require"d.
  353 # . OPT_SPAM_FILTER:
  354 #   Generic filter hook which can be used with e.g. bogofilter(1)
  355 #   and sylfilter(1): see documentation for the *spam-filter-**
  356 #   variables for expected application behaviour.
  357 OPT_SPAM_SPAMC=no
  358 OPT_SPAM_SPAMD=no
  359 OPT_SPAM_FILTER=yes
  360 
  361 # A simple line-based quoting mechanism can be made available via the
  362 # *quote-fold* mechanism.  This will be turned off automatically if the
  363 # required character classification is not available on the host.
  364 # Can be "require"d.
  365 # TODO shouldn't wrap lines when only WS or a NL-escaping \ follows
  366 OPT_QUOTE_FOLD=yes
  367 
  368 # We do have a very primitive HTML tagsoup filter which can be used to
  369 # convert HTML to plain text for display purposes.  If enabled it will
  370 # be used for all MIME types which have the @h@ or @H@ type markers
  371 # (more on this in the manual section "The mime.types files").  And
  372 # which do not have any user defined MIME type handler, of course.
  373 OPT_FILTER_HTML_TAGSOUP=yes
  374 
  375 # A simple form of coloured output can optionally be produced.
  376 OPT_COLOUR=yes
  377 
  378 # File dotlocking is performed for "system mailbox" (%[USER] and
  379 # %:ANYFILE) MBOX files: when synchronizing any such FILE a FILE.lock
  380 # file will be created in the directory of FILE, for the duration of the
  381 # synchronization: set $OPT_DOTLOCK to support this traditional mail
  382 # spool file locking.
  383 # $VAL_MAIL(s) where normal system mailboxes reside are usually not
  384 # writable by normal users, except that a user may read and write his
  385 # own mailbox.  But this means that a program run by the user cannot
  386 # create a .lock file!  The solution is to install a privilege-separated
  387 # mini-program that has the sole purpose and functionality of managing
  388 # the dotlock file in such situations -- and only then, as a last
  389 # ressort.  With it dotlock files can be created for any mailbox for
  390 # which the invoking user has read (or read-write) permissions, and
  391 # under the UID and GID of the mailbox itself!  We call it -privsep.
  392 # $OPT_DOTLOCK can be "require"d.
  393 OPT_DOTLOCK=yes
  394 
  395 ##  --  >8  --  8<  --  ##
  396 ## Normal users should not need to read any further
  397 
  398 ## PATHS AND PROGRAMS, DEVELOPMENT ##
  399 
  400 # To ease the life of forkers and packagers "our" name can be changed.
  401 # The name is build by concatenating $VAL_SID and $VAL_MAILX, i.e.,
  402 # $(VAL_SID)$(VAL_MAILX).  Note that the final string must be longer
  403 # than two characters and may not contain any whitespace.
  404 VAL_SID=s-
  405 VAL_MAILX=nail
  406 
  407 # The name of the exemplary resource template.
  408 # Note 1: not overwritten by "make install" if yet existent!
  409 VAL_SYSCONFRC="${VAL_SID}${VAL_MAILX}.rc"
  410 
  411 ## FEATURE SET, DEVELOPMENT ##
  412 
  413 # Use debug compiler flags, enable some additional commands and code
  414 # assertions.  Note that setting this also enables our own memory
  415 # canaries, which require a rather large amount of runtime memory.
  416 OPT_DEBUG=no
  417 
  418 # Experimental code etc.
  419 # Note: this forcefully enables OPT_DEBUG
  420 OPT_DEVEL=no
  421 
  422 # We use the crypto libraries' MD5 implementation if possible, unless..
  423 OPT_NOEXTMD5=no
  424 
  425 # With $OPT_AUTOCC we can make use of the ASan AddressSanitizer and ASan
  426 # MemorySanitizer of Google
  427 # (https://github.com/google/sanitizers/wiki/AddressSanitizer).
  428 # Also USAN (https://clang.llvm.org/docs/UndefinedBehaviorSanitizer.html).
  429 # These are definetely only useful for debugging.
  430 # Also, external libraries are often problematic (e.g., ncursesw), and
  431 # ASAN_MEMORY of the tried clang 4.0.0 (4.0.0-2 of ArchLinux) was faulty.
  432 # Can be "require"d.
  433 OPT_ASAN_ADDRESS=no
  434 OPT_ASAN_MEMORY=no
  435 OPT_USAN=no
  436 
  437 # With $OPT_AUTOCC we will use stack protector guards shall the
  438 # detected compiler support them; this goes in line with our own (heap)
  439 # memory canaries and will detect buffer overflows.  It is usually only
  440 # useful during development, i.e., in a debug environment that tests all
  441 # aspects of a program.  But today it is often used even in shipout code.
  442 OPT_FORCED_STACKPROT=`\
  443    if feat_yes DEVEL || feat_yes DEBUG; then \
  444       echo yes;\
  445    else \
  446       echo no;\
  447    fi`
  448 
  449 # If $OPT_DEBUG is true we'll use a simple memory wrapper with
  450 # canaries.  This interferes with memory debuggers like valgrind(1) or
  451 # the LLVM -fsanitize stuff.  Enable this to not use our wrapper.
  452 OPT_NOMEMDBG=`\
  453    if feat_yes ASAN_MEMORY || feat_yes ASAN_ADDRESS; then \
  454       echo yes;\
  455    else \
  456       echo no;\
  457    fi`
  458 
  459 # Our functions are instrumented with Not-Yet-Dead chirps, which print
  460 # a function call trace when the program crashes.  Whereas NYD will be
  461 # used automatically when either of $OPT_DEBUG and $OPT_DEVEL is
  462 # defined, an extended level of NYD is compiled in only on explicit
  463 # request.
  464 # TODO Separation in between NYD and NYD2 not yet fully done.
  465 OPT_NYD2=no
  466 
  467 # vim:set tw=72: s-it-mode