1 I n s t a l l i n g S - n a i l / S - m a i l x
2 ================================================
5 1.1 What if configuration fails?
6 1.2 What if building fails?
7 1.3 How can i enable debugging?
8 2. Notes on building the latest release
13 System specific notes can be found in the next section.
14 All (optional) features are documented (and adjustable) in make.rc.
15 Adjustments may also take place, and are usually done, from the command
16 line, overriding those made in make.rc (if any).
17 Without any adjustments all non-experimental features will be enabled,
18 except some which provide redundant functionality (e.g., OPT_SPAMC is
19 disabled because the generic OPT_SPAM_FILTER can do the same).
20 None of the features are "require"d by default, so that configuration
21 won't fail shall any of them not be available or usable.
23 $ make tangerine # equals "$ make config build test install"
24 $ make distclean # *Completely* cleanup working directory
28 $ make OPT_POP3=no OPT_SMTP=require tangerine
29 $ make OPT_CROSS_BUILD=y VAL_PREFIX=/some/nasty/prefix tangerine
31 With utility program and feature adjustments:
33 $ make awk=/usr/bin/nawk OPT_SOCKETS=no DESTDIR=./zzz tangerine
35 If OPT_DOTLOCK has been enabled then the minimal privilege-separated
36 SETUID (to VAL_PRIVSEP_USER, default "root") helper program will be build
37 and installed, and therefore the installation process needs to have the
38 appropriate privileges. In this case it may be useful to separate the
39 configuration / building and the installation tasks and give the last
40 step higher privileges via super(1), sudo(1), su(1) or a similar
43 $ make VAL_PREFIX=/usr config && make MAILJOBS='-j 4' &&
44 super make DESTDIR=./xy install
46 would create a "s-nail" binary and install a "s-nail" manual etc. under
47 the prefix "/usr" but rooted under "[./]xy", i.e., the binary would be
48 installed as "[./]xy/usr/bin/s-nail".
49 The following make(1) targets exists, the default being `build':
51 - tangerine Shorthand for "$ make config build test install":
52 create or check and update configuration, build, test and
54 The variable $DESTDIR will be honoured (see make.rc),
55 but not be tracked in the configuration.
56 In order to parallelize the `build' step pass a $MAILJOBS
57 variable, as shown below.
58 - all Shorthand for "$ make config build".
59 In order to parallelize the `build' step pass a $MAILJOBS
60 variable, as shown below.
62 - config Only create or check and update the configuration.
63 - build Only build (using the existing configuration).
64 This can be parallelized, either by a corresponding make(1)
65 invocation when the target is run by itself, or by setting
66 the $MAILJOBS variable otherwise, e.g., "MAILJOBS='-j 4'".
67 $MAILJOBS is not tracked in the configuration.
68 - install Only install using the built files of the existing
70 The variable $DESTDIR will be honoured (see make.rc),
71 but not be tracked in the configuration.
73 - clean Remove anything which can be rebuild.
74 - distclean Remove anything which can be rebuild or reconfigured.
76 - test Run cc-test.sh in --check-only mode on the built binary.
78 Setting the make(1) variable $VERBOSE to an arbitrary value during
79 `config' time, as in "$ make VERBOSE=xy tangerine", will change the
80 output of the `all', `install' etc. targets to a more verbose one.
81 If some libraries are missing that you know are installed on your
82 system, or if other errors occur due to missing files but which you know
83 exist, please ensure that the environment variable $C_INCLUDE_PATH
84 includes the necessary "include/" paths and the environment variable
85 $LD_LIBRARY_PATH includes the necessary "lib/"rary paths.
87 The S-nail make system will inspect these two environment variables and
88 *automatically* convert them to cc(1) (c99(1)) -I and -L options (since
89 these environment variables are, different to the command line options,
90 not part of the POSIX standard).
91 To set these environment variables, the following can be done in
92 a Bourne / Korn / POSIX compatible shell:
94 $ C_INCLUDE_PATH="${C_INCLUDE_PATH}:/usr/local/include"
95 $ LD_LIBRARY_PATH="${LD_LIBRARY_PATH}:/usr/local/lib"
96 $ export C_INCLUDE_PATH LD_LIBRARY_PATH
99 The S-nail make system will also automatically integrate pkgsrc(7) paths
100 into this mechanism. (pkgsrc(7) is a portable package management system
101 that is used as a default on diverse operating systems.)
102 And if all else fails you can also forcefully pass in include directives
103 and library paths by passing prefilled $INCS and $LIBS variables:
105 $ make INCS=-I/mypath/lib LIBS=-l/mypath/iconv tangerine
107 Note there are also some predefined configuration sets available, ment
108 to be used instead of doing manual adjustments (in make.rc or) on the
109 command line (names are case-insensitive):
111 - CONFIG=NULL, CONFIG=NULLI
112 Anything that can be turned off is off. MIME can't.
113 The latter adds and "require"s iconv(3), though.
116 This is the most plain mailx(1)-alike mode, but with MIME support and
117 (if available) character set conversion and regular expressions
118 builtin. Dotlock files and the privileged separated dotlock helper.
120 "Require"s dotlocking and the privileged separated dotlock helper.
123 Possibly what people want who need nothing but a MIME-capable mailx(1)
124 and don't regret improved usability for the rare interactive use
127 Like MINIMAL, but with documentation strings, the builtin line editor
128 (MLE) with history support and key bindings, error tracking, basic
129 colour support and IDNA addresses.
131 "Require"s iconv(3), dotlocking and the privileged separated dotlock
135 Sending messages directly to the mail provider via the SMTP protocol,
136 instead of requiring a local mail-transfer-agent (MTA) who does.
138 Adds SSL/TLS, GSSAPI and .netrc file parsing on top of MEDIUM, on the
139 other hand spam filter support is removed.
141 "Require"s iconv(3), SSL/TLS, SMTP (sockets), dotlocking and the
142 privileged separated dotlock helper.
145 Anything on, including experimental features.
146 S-nail(1) gains mail fetching capabilities and heads more towards
147 being a full-featured mail-user-agent (MUA) with this configuration.
149 "Require"s iconv(3), regex(3), the MLE as well as dotlocking and the
150 privileged separated dotlock helper.
152 1.1 What if configuration fails?
153 --------------------------------
155 The configuration process creates some files named "config":
157 - config.log output generated by the configuration compile tests.
158 - config.lst configuration (chosen option, programs, paths).
159 (Removing this file reenables configuration even after
160 a screwed up configuration, e.g., due to power failure.)
161 - config.h C program header produced according to config.lst.
162 - config.ev A set of sh(1) variable for reproducable compile runs.
163 - config.inc List of C header include paths, as compiler directives.
164 - config.lib List of used library information, as compiler directives.
166 Of special interest is config.log since the error usually manifests here
167 in textual output. Maybe that makes it obvious what can be done (header
168 files could not be found because of missing entries in $C_INCLUDE_PATH,
169 libraries could not be linked because of incomplete $LD_LIBRARY_PATH,
171 Otherwise it is getting complicated, and it would be appreciated if you
172 would contact the mailing-list!
174 1.2 What if building fails?
175 ---------------------------
177 Even worse! This should not happen if configuration succeeded! It
178 would be very kind and highly appreciated if you would report this
181 1.3 How can i enable debugging?
182 -------------------------------
184 Please ensure OPT_DEBUG=yes is enabled during compilation, as in
186 $ make CONFIG=MAXIMAL OPT_DEBUG=yes
188 If $OPT_AUTOCC is enabled then the build system should automatically
189 adjust the compiler flags accordingly, please see make.rc for more.
190 There is also a `devel'opment target which does most of this by itself:
194 $OPT_DEBUG (`devel') will enable memory bound debug canaries and
195 Not-Yet-Dead function graph listings etc. Whereas the latter will try
196 to write its listing into a file named after your favourite MUA in
197 your $TMPDIR (or "/tmp" or "./", in order), falling back to STDERR shall
198 creation of the file not be possible (we won't overwrite an existing
199 file), the debug facilities in general make their appearance on the
200 standard error channel; because this can be a quite long output, then,
201 it is possibly a good idea to redirect it to a file:
203 $ s-nail -dvv 2> error.log
205 Should you really discover any problems with S-nail it would be very
206 useful for development if you would contact the mailing-list!
209 2. Notes on building the latest release
210 ---------------------------------------
212 This software has been in use or is used on a regulary basis on FreeBSD
213 and Linux. Occasional tests happens on the remains of the following.
214 Unless otherwise noted the following applies to saying
215 "$ make tangerine; make devel && make test".
216 In alphabetical order:
219 * I've turned off -Wstrict-overflow warnings unless we're debug
220 enabled (talking about OPT_AUTOCC=yes here).
221 * You will likely see warnings on unused returns from write(2),
222 ftruncate(2) and a few other I/O functions. These will vanish after
223 the large I/O and MIME rewrite that comes with v15.
224 * I am using the latest gcc(1) and clang(1) compilers, and am doing
225 scan-build(1) and Coverity.com inspection before major releases.
226 Some "XYZ may be used uninitialized" warnings are logically false.
228 - All 32-bit systems:
229 * There _may_ be warnings about format strings, like, e.g.,
230 auxlily.c:1610:10: warning: format '%lu' expects type 'long
231 unsigned int', but argument 3 has type 'size_t'
232 The codebase is ISO C89, so we have no %z printf(3) format.
233 However we try hard to detect the real type size and define the
234 "PRI[du]Z" macros which end up with the correct size, which is
235 also compile-time asserted (see the "MCTA(sizeof(size_t) == XZ)"
236 statements in nail.h).
238 You can completely overcome this situation by forcing ISO C99 mode
239 when compiling, e.g., with gcc(1) and clang(1): if you use
240 $OPT_AUTOCC then also pass "EXTRA_CFLAGS=-std=c99", otherwise
241 ensure -std=c99 is set in your $CFLAGS.
243 . AlpineLinux <https://www.alpinelinux.org/>
244 AlpineLinux 3.4.3, gcc(1).
246 . ArchLinux <https://www.archlinux.org/>
247 Latest as of 2016-09-16, clang(1) and gcc(1).
249 . CRUX Linux <https://www.crux.nu/>
250 CRUX 3.2 RC3, gcc(1).
252 . DragonFly BSD <https://www.dragonflybsd.org/>
253 DragonFly 4.6.0, gcc(1).
254 * I will never get iconv(3) right for Solaris it seems.
256 - FreeBSD <https://www.freebsd.org/>
257 FreeBSD 10.3, clang(1).
259 - NetBSD <https://www.netbsd.org/>
262 . OpenBSD <https://www.openbsd.org/>
265 - Solaris <http://opencsw.org/>
266 @ First of all: thanks to OpenCSW.org for offering SSH access to
267 their Solaris build cluster!
268 * In order to be able to run the tests you will need a cksum(1) that
269 supports CRC-32 (POSIX). We look into /opt/csw/gnu/cksum, but if
270 that cannot be found you have to adjust the $cksum variable (see
271 above) to something that works.
272 (v15 will use a different test suite.)
273 * With $OPT_AUTOCC: we try to use Sun cc(1) whenever we find it.
274 If your gcc(1) installation is doing alright you have to turn
275 $OPT_AUTOCC off and use $CC, $CFLAGS and $LDFLAGS.
276 * I will never get iconv(3) right for Solaris it seems.
277 * Some notes collected on earlier trials:
278 + We may forcefully disable stack protectors on SunOS/gcc because of
279 linking errors seen in earlier tests.
280 + If you get the compiler / system header installation error
281 Undefined first referenced
283 __builtin_stdarg_start auxlily.o
284 then you have to overwrite this symbol with __builtin_va_start,
285 e.g., in conjunction with $OPT_AUTOCC add this:
286 EXTRA_CFLAGS='-D__builtin_stdarg_start=__builtin_va_start'
287 + I couldn't get us going on SunOS 5.9 Sparc: the build system had
288 to be extended to check for UINTPTR_MAX being defined as the empty
289 string and similar very special things.
290 - The OpenCSW build cluster consists of SunOS 5.9 - 5.11 machines
291 under SPARC and i386.
292 It looked good on 2016-09-16.
295 * Note: it is no longer possible to use the `install' rule, because
296 we use shell functions to ease the task of directory creation etc.
297 (especially useful due to $VERBOSE), and that won't work due to bugs
298 (in the system make(1) program i presume).
299 + Not tested after v14.8.4, just fine before that.
301 . Void Linux <http://www.voidlinux.eu/>
302 Not yet tested for v14.9.0.
303 (My current working environment is restricted since i've lost
304 my main development machine.)