Eric Lee / helloworld-autotools

Download as
Browse Code ยป

Commit 9764b34767e0a75a0b3e64d0f452442aa54d9e2b

Authored by Eric Lee
0 parents
Exists in master

initial commit

Showing 11 changed files with 706 additions and 0 deletions Side-by-side Diff

... ... @@ -0,0 +1 @@
  1 +Eric Lee <eric.lee@embedian.com>
... ... @@ -0,0 +1,340 @@
  1 + GNU GENERAL PUBLIC LICENSE
  2 + Version 2, June 1991
  3 +
  4 + Copyright (C) 1989, 1991 Free Software Foundation, Inc.
  5 + 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  6 + Everyone is permitted to copy and distribute verbatim copies
  7 + of this license document, but changing it is not allowed.
  8 +
  9 + Preamble
  10 +
  11 + The licenses for most software are designed to take away your
  12 +freedom to share and change it. By contrast, the GNU General Public
  13 +License is intended to guarantee your freedom to share and change free
  14 +software--to make sure the software is free for all its users. This
  15 +General Public License applies to most of the Free Software
  16 +Foundation's software and to any other program whose authors commit to
  17 +using it. (Some other Free Software Foundation software is covered by
  18 +the GNU Library General Public License instead.) You can apply it to
  19 +your programs, too.
  20 +
  21 + When we speak of free software, we are referring to freedom, not
  22 +price. Our General Public Licenses are designed to make sure that you
  23 +have the freedom to distribute copies of free software (and charge for
  24 +this service if you wish), that you receive source code or can get it
  25 +if you want it, that you can change the software or use pieces of it
  26 +in new free programs; and that you know you can do these things.
  27 +
  28 + To protect your rights, we need to make restrictions that forbid
  29 +anyone to deny you these rights or to ask you to surrender the rights.
  30 +These restrictions translate to certain responsibilities for you if you
  31 +distribute copies of the software, or if you modify it.
  32 +
  33 + For example, if you distribute copies of such a program, whether
  34 +gratis or for a fee, you must give the recipients all the rights that
  35 +you have. You must make sure that they, too, receive or can get the
  36 +source code. And you must show them these terms so they know their
  37 +rights.
  38 +
  39 + We protect your rights with two steps: (1) copyright the software, and
  40 +(2) offer you this license which gives you legal permission to copy,
  41 +distribute and/or modify the software.
  42 +
  43 + Also, for each author's protection and ours, we want to make certain
  44 +that everyone understands that there is no warranty for this free
  45 +software. If the software is modified by someone else and passed on, we
  46 +want its recipients to know that what they have is not the original, so
  47 +that any problems introduced by others will not reflect on the original
  48 +authors' reputations.
  49 +
  50 + Finally, any free program is threatened constantly by software
  51 +patents. We wish to avoid the danger that redistributors of a free
  52 +program will individually obtain patent licenses, in effect making the
  53 +program proprietary. To prevent this, we have made it clear that any
  54 +patent must be licensed for everyone's free use or not licensed at all.
  55 +
  56 + The precise terms and conditions for copying, distribution and
  57 +modification follow.
  58 +
  59 + GNU GENERAL PUBLIC LICENSE
  60 + TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
  61 +
  62 + 0. This License applies to any program or other work which contains
  63 +a notice placed by the copyright holder saying it may be distributed
  64 +under the terms of this General Public License. The "Program", below,
  65 +refers to any such program or work, and a "work based on the Program"
  66 +means either the Program or any derivative work under copyright law:
  67 +that is to say, a work containing the Program or a portion of it,
  68 +either verbatim or with modifications and/or translated into another
  69 +language. (Hereinafter, translation is included without limitation in
  70 +the term "modification".) Each licensee is addressed as "you".
  71 +
  72 +Activities other than copying, distribution and modification are not
  73 +covered by this License; they are outside its scope. The act of
  74 +running the Program is not restricted, and the output from the Program
  75 +is covered only if its contents constitute a work based on the
  76 +Program (independent of having been made by running the Program).
  77 +Whether that is true depends on what the Program does.
  78 +
  79 + 1. You may copy and distribute verbatim copies of the Program's
  80 +source code as you receive it, in any medium, provided that you
  81 +conspicuously and appropriately publish on each copy an appropriate
  82 +copyright notice and disclaimer of warranty; keep intact all the
  83 +notices that refer to this License and to the absence of any warranty;
  84 +and give any other recipients of the Program a copy of this License
  85 +along with the Program.
  86 +
  87 +You may charge a fee for the physical act of transferring a copy, and
  88 +you may at your option offer warranty protection in exchange for a fee.
  89 +
  90 + 2. You may modify your copy or copies of the Program or any portion
  91 +of it, thus forming a work based on the Program, and copy and
  92 +distribute such modifications or work under the terms of Section 1
  93 +above, provided that you also meet all of these conditions:
  94 +
  95 + a) You must cause the modified files to carry prominent notices
  96 + stating that you changed the files and the date of any change.
  97 +
  98 + b) You must cause any work that you distribute or publish, that in
  99 + whole or in part contains or is derived from the Program or any
  100 + part thereof, to be licensed as a whole at no charge to all third
  101 + parties under the terms of this License.
  102 +
  103 + c) If the modified program normally reads commands interactively
  104 + when run, you must cause it, when started running for such
  105 + interactive use in the most ordinary way, to print or display an
  106 + announcement including an appropriate copyright notice and a
  107 + notice that there is no warranty (or else, saying that you provide
  108 + a warranty) and that users may redistribute the program under
  109 + these conditions, and telling the user how to view a copy of this
  110 + License. (Exception: if the Program itself is interactive but
  111 + does not normally print such an announcement, your work based on
  112 + the Program is not required to print an announcement.)
  113 +
  114 +These requirements apply to the modified work as a whole. If
  115 +identifiable sections of that work are not derived from the Program,
  116 +and can be reasonably considered independent and separate works in
  117 +themselves, then this License, and its terms, do not apply to those
  118 +sections when you distribute them as separate works. But when you
  119 +distribute the same sections as part of a whole which is a work based
  120 +on the Program, the distribution of the whole must be on the terms of
  121 +this License, whose permissions for other licensees extend to the
  122 +entire whole, and thus to each and every part regardless of who wrote it.
  123 +
  124 +Thus, it is not the intent of this section to claim rights or contest
  125 +your rights to work written entirely by you; rather, the intent is to
  126 +exercise the right to control the distribution of derivative or
  127 +collective works based on the Program.
  128 +
  129 +In addition, mere aggregation of another work not based on the Program
  130 +with the Program (or with a work based on the Program) on a volume of
  131 +a storage or distribution medium does not bring the other work under
  132 +the scope of this License.
  133 +
  134 + 3. You may copy and distribute the Program (or a work based on it,
  135 +under Section 2) in object code or executable form under the terms of
  136 +Sections 1 and 2 above provided that you also do one of the following:
  137 +
  138 + a) Accompany it with the complete corresponding machine-readable
  139 + source code, which must be distributed under the terms of Sections
  140 + 1 and 2 above on a medium customarily used for software interchange; or,
  141 +
  142 + b) Accompany it with a written offer, valid for at least three
  143 + years, to give any third party, for a charge no more than your
  144 + cost of physically performing source distribution, a complete
  145 + machine-readable copy of the corresponding source code, to be
  146 + distributed under the terms of Sections 1 and 2 above on a medium
  147 + customarily used for software interchange; or,
  148 +
  149 + c) Accompany it with the information you received as to the offer
  150 + to distribute corresponding source code. (This alternative is
  151 + allowed only for noncommercial distribution and only if you
  152 + received the program in object code or executable form with such
  153 + an offer, in accord with Subsection b above.)
  154 +
  155 +The source code for a work means the preferred form of the work for
  156 +making modifications to it. For an executable work, complete source
  157 +code means all the source code for all modules it contains, plus any
  158 +associated interface definition files, plus the scripts used to
  159 +control compilation and installation of the executable. However, as a
  160 +special exception, the source code distributed need not include
  161 +anything that is normally distributed (in either source or binary
  162 +form) with the major components (compiler, kernel, and so on) of the
  163 +operating system on which the executable runs, unless that component
  164 +itself accompanies the executable.
  165 +
  166 +If distribution of executable or object code is made by offering
  167 +access to copy from a designated place, then offering equivalent
  168 +access to copy the source code from the same place counts as
  169 +distribution of the source code, even though third parties are not
  170 +compelled to copy the source along with the object code.
  171 +
  172 + 4. You may not copy, modify, sublicense, or distribute the Program
  173 +except as expressly provided under this License. Any attempt
  174 +otherwise to copy, modify, sublicense or distribute the Program is
  175 +void, and will automatically terminate your rights under this License.
  176 +However, parties who have received copies, or rights, from you under
  177 +this License will not have their licenses terminated so long as such
  178 +parties remain in full compliance.
  179 +
  180 + 5. You are not required to accept this License, since you have not
  181 +signed it. However, nothing else grants you permission to modify or
  182 +distribute the Program or its derivative works. These actions are
  183 +prohibited by law if you do not accept this License. Therefore, by
  184 +modifying or distributing the Program (or any work based on the
  185 +Program), you indicate your acceptance of this License to do so, and
  186 +all its terms and conditions for copying, distributing or modifying
  187 +the Program or works based on it.
  188 +
  189 + 6. Each time you redistribute the Program (or any work based on the
  190 +Program), the recipient automatically receives a license from the
  191 +original licensor to copy, distribute or modify the Program subject to
  192 +these terms and conditions. You may not impose any further
  193 +restrictions on the recipients' exercise of the rights granted herein.
  194 +You are not responsible for enforcing compliance by third parties to
  195 +this License.
  196 +
  197 + 7. If, as a consequence of a court judgment or allegation of patent
  198 +infringement or for any other reason (not limited to patent issues),
  199 +conditions are imposed on you (whether by court order, agreement or
  200 +otherwise) that contradict the conditions of this License, they do not
  201 +excuse you from the conditions of this License. If you cannot
  202 +distribute so as to satisfy simultaneously your obligations under this
  203 +License and any other pertinent obligations, then as a consequence you
  204 +may not distribute the Program at all. For example, if a patent
  205 +license would not permit royalty-free redistribution of the Program by
  206 +all those who receive copies directly or indirectly through you, then
  207 +the only way you could satisfy both it and this License would be to
  208 +refrain entirely from distribution of the Program.
  209 +
  210 +If any portion of this section is held invalid or unenforceable under
  211 +any particular circumstance, the balance of the section is intended to
  212 +apply and the section as a whole is intended to apply in other
  213 +circumstances.
  214 +
  215 +It is not the purpose of this section to induce you to infringe any
  216 +patents or other property right claims or to contest validity of any
  217 +such claims; this section has the sole purpose of protecting the
  218 +integrity of the free software distribution system, which is
  219 +implemented by public license practices. Many people have made
  220 +generous contributions to the wide range of software distributed
  221 +through that system in reliance on consistent application of that
  222 +system; it is up to the author/donor to decide if he or she is willing
  223 +to distribute software through any other system and a licensee cannot
  224 +impose that choice.
  225 +
  226 +This section is intended to make thoroughly clear what is believed to
  227 +be a consequence of the rest of this License.
  228 +
  229 + 8. If the distribution and/or use of the Program is restricted in
  230 +certain countries either by patents or by copyrighted interfaces, the
  231 +original copyright holder who places the Program under this License
  232 +may add an explicit geographical distribution limitation excluding
  233 +those countries, so that distribution is permitted only in or among
  234 +countries not thus excluded. In such case, this License incorporates
  235 +the limitation as if written in the body of this License.
  236 +
  237 + 9. The Free Software Foundation may publish revised and/or new versions
  238 +of the General Public License from time to time. Such new versions will
  239 +be similar in spirit to the present version, but may differ in detail to
  240 +address new problems or concerns.
  241 +
  242 +Each version is given a distinguishing version number. If the Program
  243 +specifies a version number of this License which applies to it and "any
  244 +later version", you have the option of following the terms and conditions
  245 +either of that version or of any later version published by the Free
  246 +Software Foundation. If the Program does not specify a version number of
  247 +this License, you may choose any version ever published by the Free Software
  248 +Foundation.
  249 +
  250 + 10. If you wish to incorporate parts of the Program into other free
  251 +programs whose distribution conditions are different, write to the author
  252 +to ask for permission. For software which is copyrighted by the Free
  253 +Software Foundation, write to the Free Software Foundation; we sometimes
  254 +make exceptions for this. Our decision will be guided by the two goals
  255 +of preserving the free status of all derivatives of our free software and
  256 +of promoting the sharing and reuse of software generally.
  257 +
  258 + NO WARRANTY
  259 +
  260 + 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
  261 +FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
  262 +OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
  263 +PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
  264 +OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  265 +MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
  266 +TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
  267 +PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
  268 +REPAIR OR CORRECTION.
  269 +
  270 + 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
  271 +WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
  272 +REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
  273 +INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
  274 +OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
  275 +TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
  276 +YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
  277 +PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
  278 +POSSIBILITY OF SUCH DAMAGES.
  279 +
  280 + END OF TERMS AND CONDITIONS
  281 +
  282 + How to Apply These Terms to Your New Programs
  283 +
  284 + If you develop a new program, and you want it to be of the greatest
  285 +possible use to the public, the best way to achieve this is to make it
  286 +free software which everyone can redistribute and change under these terms.
  287 +
  288 + To do so, attach the following notices to the program. It is safest
  289 +to attach them to the start of each source file to most effectively
  290 +convey the exclusion of warranty; and each file should have at least
  291 +the "copyright" line and a pointer to where the full notice is found.
  292 +
  293 + <one line to give the program's name and a brief idea of what it does.>
  294 + Copyright (C) <year> <name of author>
  295 +
  296 + This program is free software; you can redistribute it and/or modify
  297 + it under the terms of the GNU General Public License as published by
  298 + the Free Software Foundation; either version 2 of the License, or
  299 + (at your option) any later version.
  300 +
  301 + This program is distributed in the hope that it will be useful,
  302 + but WITHOUT ANY WARRANTY; without even the implied warranty of
  303 + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  304 + GNU General Public License for more details.
  305 +
  306 + You should have received a copy of the GNU General Public License
  307 + along with this program; if not, write to the Free Software
  308 + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  309 +
  310 +
  311 +Also add information on how to contact you by electronic and paper mail.
  312 +
  313 +If the program is interactive, make it output a short notice like this
  314 +when it starts in an interactive mode:
  315 +
  316 + Gnomovision version 69, Copyright (C) year name of author
  317 + Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
  318 + This is free software, and you are welcome to redistribute it
  319 + under certain conditions; type `show c' for details.
  320 +
  321 +The hypothetical commands `show w' and `show c' should show the appropriate
  322 +parts of the General Public License. Of course, the commands you use may
  323 +be called something other than `show w' and `show c'; they could even be
  324 +mouse-clicks or menu items--whatever suits your program.
  325 +
  326 +You should also get your employer (if you work as a programmer) or your
  327 +school, if any, to sign a "copyright disclaimer" for the program, if
  328 +necessary. Here is a sample; alter the names:
  329 +
  330 + Yoyodyne, Inc., hereby disclaims all copyright interest in the program
  331 + `Gnomovision' (which makes passes at compilers) written by James Hacker.
  332 +
  333 + <signature of Ty Coon>, 1 April 1989
  334 + Ty Coon, President of Vice
  335 +
  336 +This General Public License does not permit incorporating your program into
  337 +proprietary programs. If your program is a subroutine library, you may
  338 +consider it more useful to permit linking proprietary applications with the
  339 +library. If this is what you want to do, use the GNU Library General
  340 +Public License instead of this License.
No preview for this file type
... ... @@ -0,0 +1,237 @@
  1 +Installation Instructions
  2 +*************************
  3 +
  4 +Copyright (C) 1994, 1995, 1996, 1999, 2000, 2001, 2002, 2004, 2005,
  5 +2006, 2007 Free Software Foundation, Inc.
  6 +
  7 +This file is free documentation; the Free Software Foundation gives
  8 +unlimited permission to copy, distribute and modify it.
  9 +
  10 +Basic Installation
  11 +==================
  12 +
  13 +Briefly, the shell commands `./configure; make; make install' should
  14 +configure, build, and install this package. The following
  15 +more-detailed instructions are generic; see the `README' file for
  16 +instructions specific to this package.
  17 +
  18 + The `configure' shell script attempts to guess correct values for
  19 +various system-dependent variables used during compilation. It uses
  20 +those values to create a `Makefile' in each directory of the package.
  21 +It may also create one or more `.h' files containing system-dependent
  22 +definitions. Finally, it creates a shell script `config.status' that
  23 +you can run in the future to recreate the current configuration, and a
  24 +file `config.log' containing compiler output (useful mainly for
  25 +debugging `configure').
  26 +
  27 + It can also use an optional file (typically called `config.cache'
  28 +and enabled with `--cache-file=config.cache' or simply `-C') that saves
  29 +the results of its tests to speed up reconfiguring. Caching is
  30 +disabled by default to prevent problems with accidental use of stale
  31 +cache files.
  32 +
  33 + If you need to do unusual things to compile the package, please try
  34 +to figure out how `configure' could check whether to do them, and mail
  35 +diffs or instructions to the address given in the `README' so they can
  36 +be considered for the next release. If you are using the cache, and at
  37 +some point `config.cache' contains results you don't want to keep, you
  38 +may remove or edit it.
  39 +
  40 + The file `configure.ac' (or `configure.in') is used to create
  41 +`configure' by a program called `autoconf'. You need `configure.ac' if
  42 +you want to change it or regenerate `configure' using a newer version
  43 +of `autoconf'.
  44 +
  45 +The simplest way to compile this package is:
  46 +
  47 + 1. `cd' to the directory containing the package's source code and type
  48 + `./configure' to configure the package for your system.
  49 +
  50 + Running `configure' might take a while. While running, it prints
  51 + some messages telling which features it is checking for.
  52 +
  53 + 2. Type `make' to compile the package.
  54 +
  55 + 3. Optionally, type `make check' to run any self-tests that come with
  56 + the package.
  57 +
  58 + 4. Type `make install' to install the programs and any data files and
  59 + documentation.
  60 +
  61 + 5. You can remove the program binaries and object files from the
  62 + source code directory by typing `make clean'. To also remove the
  63 + files that `configure' created (so you can compile the package for
  64 + a different kind of computer), type `make distclean'. There is
  65 + also a `make maintainer-clean' target, but that is intended mainly
  66 + for the package's developers. If you use it, you may have to get
  67 + all sorts of other programs in order to regenerate files that came
  68 + with the distribution.
  69 +
  70 + 6. Often, you can also type `make uninstall' to remove the installed
  71 + files again.
  72 +
  73 +Compilers and Options
  74 +=====================
  75 +
  76 +Some systems require unusual options for compilation or linking that the
  77 +`configure' script does not know about. Run `./configure --help' for
  78 +details on some of the pertinent environment variables.
  79 +
  80 + You can give `configure' initial values for configuration parameters
  81 +by setting variables in the command line or in the environment. Here
  82 +is an example:
  83 +
  84 + ./configure CC=c99 CFLAGS=-g LIBS=-lposix
  85 +
  86 + *Note Defining Variables::, for more details.
  87 +
  88 +Compiling For Multiple Architectures
  89 +====================================
  90 +
  91 +You can compile the package for more than one kind of computer at the
  92 +same time, by placing the object files for each architecture in their
  93 +own directory. To do this, you can use GNU `make'. `cd' to the
  94 +directory where you want the object files and executables to go and run
  95 +the `configure' script. `configure' automatically checks for the
  96 +source code in the directory that `configure' is in and in `..'.
  97 +
  98 + With a non-GNU `make', it is safer to compile the package for one
  99 +architecture at a time in the source code directory. After you have
  100 +installed the package for one architecture, use `make distclean' before
  101 +reconfiguring for another architecture.
  102 +
  103 +Installation Names
  104 +==================
  105 +
  106 +By default, `make install' installs the package's commands under
  107 +`/usr/local/bin', include files under `/usr/local/include', etc. You
  108 +can specify an installation prefix other than `/usr/local' by giving
  109 +`configure' the option `--prefix=PREFIX'.
  110 +
  111 + You can specify separate installation prefixes for
  112 +architecture-specific files and architecture-independent files. If you
  113 +pass the option `--exec-prefix=PREFIX' to `configure', the package uses
  114 +PREFIX as the prefix for installing programs and libraries.
  115 +Documentation and other data files still use the regular prefix.
  116 +
  117 + In addition, if you use an unusual directory layout you can give
  118 +options like `--bindir=DIR' to specify different values for particular
  119 +kinds of files. Run `configure --help' for a list of the directories
  120 +you can set and what kinds of files go in them.
  121 +
  122 + If the package supports it, you can cause programs to be installed
  123 +with an extra prefix or suffix on their names by giving `configure' the
  124 +option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'.
  125 +
  126 +Optional Features
  127 +=================
  128 +
  129 +Some packages pay attention to `--enable-FEATURE' options to
  130 +`configure', where FEATURE indicates an optional part of the package.
  131 +They may also pay attention to `--with-PACKAGE' options, where PACKAGE
  132 +is something like `gnu-as' or `x' (for the X Window System). The
  133 +`README' should mention any `--enable-' and `--with-' options that the
  134 +package recognizes.
  135 +
  136 + For packages that use the X Window System, `configure' can usually
  137 +find the X include and library files automatically, but if it doesn't,
  138 +you can use the `configure' options `--x-includes=DIR' and
  139 +`--x-libraries=DIR' to specify their locations.
  140 +
  141 +Specifying the System Type
  142 +==========================
  143 +
  144 +There may be some features `configure' cannot figure out automatically,
  145 +but needs to determine by the type of machine the package will run on.
  146 +Usually, assuming the package is built to be run on the _same_
  147 +architectures, `configure' can figure that out, but if it prints a
  148 +message saying it cannot guess the machine type, give it the
  149 +`--build=TYPE' option. TYPE can either be a short name for the system
  150 +type, such as `sun4', or a canonical name which has the form:
  151 +
  152 + CPU-COMPANY-SYSTEM
  153 +
  154 +where SYSTEM can have one of these forms:
  155 +
  156 + OS KERNEL-OS
  157 +
  158 + See the file `config.sub' for the possible values of each field. If
  159 +`config.sub' isn't included in this package, then this package doesn't
  160 +need to know the machine type.
  161 +
  162 + If you are _building_ compiler tools for cross-compiling, you should
  163 +use the option `--target=TYPE' to select the type of system they will
  164 +produce code for.
  165 +
  166 + If you want to _use_ a cross compiler, that generates code for a
  167 +platform different from the build platform, you should specify the
  168 +"host" platform (i.e., that on which the generated programs will
  169 +eventually be run) with `--host=TYPE'.
  170 +
  171 +Sharing Defaults
  172 +================
  173 +
  174 +If you want to set default values for `configure' scripts to share, you
  175 +can create a site shell script called `config.site' that gives default
  176 +values for variables like `CC', `cache_file', and `prefix'.
  177 +`configure' looks for `PREFIX/share/config.site' if it exists, then
  178 +`PREFIX/etc/config.site' if it exists. Or, you can set the
  179 +`CONFIG_SITE' environment variable to the location of the site script.
  180 +A warning: not all `configure' scripts look for a site script.
  181 +
  182 +Defining Variables
  183 +==================
  184 +
  185 +Variables not defined in a site shell script can be set in the
  186 +environment passed to `configure'. However, some packages may run
  187 +configure again during the build, and the customized values of these
  188 +variables may be lost. In order to avoid this problem, you should set
  189 +them in the `configure' command line, using `VAR=value'. For example:
  190 +
  191 + ./configure CC=/usr/local2/bin/gcc
  192 +
  193 +causes the specified `gcc' to be used as the C compiler (unless it is
  194 +overridden in the site shell script).
  195 +
  196 +Unfortunately, this technique does not work for `CONFIG_SHELL' due to
  197 +an Autoconf bug. Until the bug is fixed you can use this workaround:
  198 +
  199 + CONFIG_SHELL=/bin/bash /bin/bash ./configure CONFIG_SHELL=/bin/bash
  200 +
  201 +`configure' Invocation
  202 +======================
  203 +
  204 +`configure' recognizes the following options to control how it operates.
  205 +
  206 +`--help'
  207 +`-h'
  208 + Print a summary of the options to `configure', and exit.
  209 +
  210 +`--version'
  211 +`-V'
  212 + Print the version of Autoconf used to generate the `configure'
  213 + script, and exit.
  214 +
  215 +`--cache-file=FILE'
  216 + Enable the cache: use and save the results of the tests in FILE,
  217 + traditionally `config.cache'. FILE defaults to `/dev/null' to
  218 + disable caching.
  219 +
  220 +`--config-cache'
  221 +`-C'
  222 + Alias for `--cache-file=config.cache'.
  223 +
  224 +`--quiet'
  225 +`--silent'
  226 +`-q'
  227 + Do not print messages saying which checks are being made. To
  228 + suppress all normal output, redirect it to `/dev/null' (any error
  229 + messages will still be shown).
  230 +
  231 +`--srcdir=DIR'
  232 + Look for the package's source code in directory DIR. Usually
  233 + `configure' can determine that directory automatically.
  234 +
  235 +`configure' also accepts some other, not widely useful, options. Run
  236 +`configure --help' for more details.
  237 +
... ... @@ -0,0 +1,3 @@
  1 +AUTOMAKE_OPTIONS = gnu
  2 +SUBDIRS = src
  3 +
... ... @@ -0,0 +1 @@
  1 +Hello World example using autotools
... ... @@ -0,0 +1,15 @@
  1 +AC_INIT([src/helloworld.c])
  2 +AM_INIT_AUTOMAKE([helloworld], [1.0.0])
  3 +AM_CONFIG_HEADER([config.h])
  4 +
  5 +AC_PROG_CC
  6 +AC_PROG_INSTALL
  7 +AC_PROG_MAKE_SET
  8 +
  9 +AC_HEADER_STDC
  10 +
  11 +AC_CHECK_HEADERS([unistd.h getopt.h errno.h time.h], [],AC_MSG_ERROR([
  12 +required header missing]))
  13 +
  14 +AC_OUTPUT([Makefile src/Makefile])
  15 +
... ... @@ -0,0 +1,8 @@
  1 +AUTOMAKE_OPTIONS = gnu
  2 +AM_CFLAGS = -Wall
  3 +bin_PROGRAMS = helloworld
  4 +helloworld_SOURCES = helloworld.c
  5 +noinst_HEADERS = helloworld.h
  6 +
  7 +EXTRA_DIST =
  8 +
... ... @@ -0,0 +1,94 @@
  1 +/*
  2 + * Hello World Recipe
  3 + *
  4 + * Copyright (C) 2010 by Embedian, Inc.
  5 + *
  6 + * Author: Eric Lee <eric.lee@embedian.com>
  7 + *
  8 + * This program is free software; you can redistribute it and/or modify
  9 + * it under the terms of the GNU General Public License as published by
  10 + * the Free Software Foundation; either version 2 of the License, or
  11 + * (at your option) any later version.
  12 + *
  13 + * This program is distributed in the hope that it will be useful,
  14 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  16 + * General Public License for more details.
  17 + *
  18 + * You should have received a copy of the GNU General Public License
  19 + * along with this program; if not, write to the Free Software
  20 + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  21 + *
  22 + */
  23 +
  24 +#include <stdio.h>
  25 +#include <stdlib.h>
  26 +#include <unistd.h>
  27 +#include <getopt.h>
  28 +#include <errno.h>
  29 +#include <time.h>
  30 +
  31 +#include "helloworld.h"
  32 +
  33 +static void print_version(const char *name) {
  34 + printf("%s (" PACKAGE ") " VERSION " (" __DATE__ " " __TIME__ ")\n", name);
  35 + printf("Copyright (C) 2014 by Embedian, Inc.\n");
  36 + printf(
  37 +"This program is free software; you may redistribute it under the terms of\n"
  38 +"the GNU General Public License version 2 or (at your option) any later version.\n"
  39 +"This program has absolutely no warranty.\n");
  40 +}
  41 +
  42 +static void usage(FILE *out) {
  43 + fprintf(out, "Usage: helloworld [ <things> ]\n");
  44 + fprintf(out, "\n");
  45 +}
  46 +
  47 +enum {
  48 + OPT_VERSION = 128,
  49 + OPT_HELP,
  50 +};
  51 +
  52 +static char *short_options = "";
  53 +static struct option long_options[] = {
  54 + {"version", 0, NULL, OPT_VERSION},
  55 + {"help", 0, NULL, OPT_HELP},
  56 + {0, 0, 0, 0},
  57 +};
  58 +
  59 +int main(int argc, char *argv[]) {
  60 + int i;
  61 + int option_index;
  62 +
  63 + while((i = getopt_long(argc, argv, short_options, long_options, &option_index)) >= 0) {
  64 + switch(i) {
  65 + case 0:
  66 + break;
  67 +
  68 + case OPT_VERSION:
  69 + print_version("helloworld");
  70 + exit(0);
  71 + break;
  72 +
  73 + case OPT_HELP:
  74 + usage(stdout);
  75 + exit(0);
  76 + break;
  77 +
  78 + default:
  79 + usage(stderr);
  80 + exit(1);
  81 + }
  82 + }
  83 +
  84 + if(optind < argc) {
  85 + while(optind < argc) {
  86 + printf("Hello %s!\n", argv[optind++]);
  87 + }
  88 + } else {
  89 + printf("Hello Autotools!\n");
  90 + }
  91 +
  92 + return 0;
  93 +}
  94 +
... ... @@ -0,0 +1,6 @@
  1 +#ifndef __HELLOWORLD_H
  2 +#define __HELLOWORLD_H
  3 +
  4 +#include "config.h"
  5 +
  6 +#endif /* ~__HELLOWORLD_H */