Some systems (namely HPUX and Windows) return -1 when maxsize in snprintf()
and in vsnprintf() is reached. So replace snprintf() and vsnprintf()
functions with our own ones that return correct value upon overflow.

[jc: verified that review comments by J6t have been incorporated, and
 tightened the check to verify the resulting buffer contents, suggested
 by Wayne Davison]
Signed-off-by: NMichal Rokos <michal.rokos@nextsoft.cz>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Pre-POSIX.1-2001 systems don't have <sys/select.h>, but select(2)
is declared in <sys/time.h>, which git-compat-util.h includes.
Signed-off-by: NJakub Narebski <jnareb@gmail.com>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Update configure.ac (and config.mak.in) by adding test for unsetenv
(NO_UNSETENV).  Add comment about NO_UNSETENV to Makefile header, as
original commit 731043fd adding compat/unsetenv.c didn't do that.
Signed-off-by: NJakub Narebski <jnareb@gmail.com>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Check for asciidoc, and if it exists check asciidoc version, setting
ASCIIDOC8 when needed.  Currently it just runs asciidoc in asciidoc7
compatibility mode (see: Documentation/Makefile).
Signed-off-by: NJakub Narebski <jnareb@gmail.com>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Update configure.ac (and config.mak.in) to keep up with git
development by adding [compile] test whether your library has an old
iconv(), where the second (input buffer pointer) parameter is declared
with type (const char **) (OLD_ICONV).
Test-proposed-by: NLinus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: NJakub Narebski <jnareb@gmail.com>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Signed-off-by: NJohannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Update configure.ac (and config.mak.in) to keep up with git
development by adding tests for memmem (NO_MEMMEM), strtoumax
(NO_STRTOUMAX) and mkdtemp (NO_MKDTEMP) functions.
Signed-off-by: NJakub Narebski <jnareb@gmail.com>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Avoid "test -o" as it is only XSI not POSIX, and not portable.
Avoid exit(3) in test programs in favor of return, to accommodate
for newer Autoconf not providing a declaration for exit.
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

ZLIB_VERNUM isn't defined in some zlib versions, so this patch does a proper
linking test in autoconf to see whether deflateBound exists in zlib. Also,
setting NO_DEFLATE_BOUND will also work for folk not using autoconf.
Signed-off-by: NDavid Symonds <dsymonds@gmail.com>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Some systems that have only installed the GNU toolchain (prefixed with "g")
do not provide "ar" but only "gar".  Make configure find this tool as well.
Signed-off-by: NRobert Schiele <rschiele@gmail.com>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Introduce new makefile variable lib to hold the name of the lib
directory ("lib" by default).  Also introduce a switch for configure
to specify this name with --with-lib=ARG.  This is useful for systems
that use a different name than "lib" (like "lib64" on some 64 bit
Linux architectures).
Signed-off-by: NRobert Schiele <rschiele@gmail.com>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Some systems do not provide zlib development headers and libraries in
default search path of the compiler.  For these systems we should allow
specifying the location by --with-zlib=PATH or by setting ZLIB_PATH in
the makefile.
Signed-off-by: NRobert Schiele <rschiele@gmail.com>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Do not make the checks on the Tcl/Tk interpreter passed by
'--with-tcltk=/path/to/wish' configure option: user is free to pass
anything.
Signed-off-by: NEygene Ryabinkin <rea-git@codelabs.ru>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

--with-tcltk enables the search of the Tcl/Tk interpreter. If no
interpreter is found then Tcl/Tk dependend parts are disabled.

--without-tcltk unconditionally disables Tcl/Tk dependent parts.

The original behaviour is not changed: bare './configure' just
installs the Tcl/Tk part doing no checks for the interpreter.
Signed-off-by: NEygene Ryabinkin <rea-git@codelabs.ru>

On a Solaris machine I have access to libc contains the symbol
"iconv" but, when compiling with gcc and including iconv.h we get
iconv.h from GNU libiconv. This header file define (among other
things) "iconv" to "libiconv" and so on.

In order to link with GNU libiconv we need -liconv. Currently we
test if the symbol "iconv" is in libc (which is true), then we get
a undefined reference error because we don't have libiconv_open.

The solution this patch implements is to compile and link a
small test program, instead of just checking if the libraries
(libc and libiconv) contains the symbol "iconv".
Signed-off-by: NFredrik Kuivinen <frekui@gmail.com>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

The code no longer uses it, as we have --inaccurate-eof in
git-apply.
Signed-off-by: NEric Wong <normalperson@yhbt.net>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

It's rather misleading to have configuration options that don't do
anything.  If someone adds collision checking they might also want to
restore this option.
Signed-off-by: NBrian Gernhardt <benji@silverinsanity.com>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

This frees the Porcelain-ish that comes with the core Python-free.
Signed-off-by: NJunio C Hamano <junkio@cox.net>

The distinction between BASIC_ vs ALL_ is still kept, since it
is not Git.xs specific -- we could face the same issue when we
do other language bindings (e.g. Python).
Signed-off-by: NJunio C Hamano <junkio@cox.net>

This renames merge-recursive written in Python to merge-recursive-old,
and makes merge-recur as a synonym to merge-recursive.  We do not remove
merge-recur yet, but we will remove merge-recur and merge-recursive-old
in a few releases down the road.
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Add support for ./configure options --without-iconv (if neither libc
nor libiconv properly support iconv), and for --with-iconv=PATH (to
set prefix to libiconv library and headers, used only when
NEED_LIBICONV is set).  While at it, make ./configure set or unset
NO_ICONV always (it is not autodetected in Makefile).
Signed-off-by: NJakub Narebski <jnareb@gmail.com>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Signed-off-by: NJakub Narebski <jnareb@gmail.com>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Signed-off-by: NJonas Fonseca <fonseca@diku.dk>
Signed-off-by: NJakub Narebski <jnareb@gmail.com>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Signed-off-by: NJakub Narebski <jnareb@gmail.com>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Add custom test for checking if Python comes with subprocess.py, or
should we use our own subprocess.py by defining WITH_OWN_SUBPROCESS_PY.
Signed-off-by: NJakub Narebski <jnareb@gmail.com>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Signed-off-by: NJakub Narebski <jnareb@gmail.com>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

- Add the CFLAGS variable to config.mak.in to override the Makefile's
  default, which is gcc-specific and won't work with Sun CC.
- Prefer "cc" over "gcc", because Pasky's Git.pm will not compile with gcc
  on Solaris at all. On Linux and the free BSDs "cc" is linked to "gcc"
  anyway.
- Set correct flag to generate position-independent code.
- Add "-xO3" (= use default optimization level) to CFLAGS.
Signed-off-by: NDennis Stosberg <dennis@stosberg.net>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

The configuration script detects whether linking with -lsocket is
necessary but doesn't add -lsocket to LIBS.  This lets the ipv6 test
fail.
Signed-off-by: NDennis Stosberg <dennis@stosberg.net>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

On Solaris and the BSDs the definition of "struct sockaddr_storage"
is not available from "netinet/in.h".  On Solaris "sys/socket.h" is
enough, at least OpenBSD needs "sys/types.h", too.

Using "sys/types.h" and "sys/socket.h" seems to be a more portable
way.
Signed-off-by: NDennis Stosberg <dennis@stosberg.net>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Add support for --with-openssl=PATH and --without-openssl,
--with-curl=PATH and --without-curl, --with-expat=PATH and
--without-expat ./configure options, each setting or unsetting
appropriate NO_PACKAGE and if called with argument also PACKAGEDIR
(of which only CURLDIR is documented in Makefile)

All above options are supported as override to autodetection; more to
come in the same style (override to autodetection), so moved the bulk
of comments for site configuration down.

Needs review by someone well versed in autoconf and m4.
Signed-off-by: NJakub Narebski <jnareb@gmail.com>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Signed-off-by: NJakub Narebski <jnareb@gmail.com>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Move detected NO_STH and NEED_STH variables, which we always output,
either setting or unsetting (setting to empty string) to config.mak.in
and use setting appropriately named variables and doing AC_SUBST
instead of adding them via GIT_CONF_APPEND_LINE macro and
config.mak.append temporary file.

Variables which might and might not be set are still added via
config.mak.append; this include all STH_PATH variables.
Signed-off-by: NJakub Narebski <jnareb@gmail.com>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Unset NO_PYTHON for --with-python without arguments, and when
PYTHON_PATH is set.  Do not check for PYTHON_PATH if it is set
via --with-python=PYTHON_PATH.  Prefer "python" over version
specific names such as "python2.4".
Signed-off-by: NJakub Narebski <jnareb@gmail.com>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Error out on --without-shell/--with-shell=no and
--without-perl/--with-perl=no instead of just warning
and continuing.
Signed-off-by: NJakub Narebski <jnareb@gmail.com>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

While at it fill git version information in configure.ac
configure target needs autoconf, of course.
Signed-off-by: NJakub Narebski <jnareb@gmail.com>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

When configure detects some NO_XXX or NEEDS_XXX is unneeded, unset
this variable (actually set it to empty string).  This allow
autodetection to override the default set in Makefile.

[jc: while at it fixed a thinko in IPv6 detection.]
Signed-off-by: NJakub Narebski <jnareb@gmail.com>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

We would need both "struct addrinfo" and getaddrinfo()
available.  Check them and set NO_IPV6 otherwise.
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Signed-off-by: NJakub Narebski <jnareb@gmail.com>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

NEEDS_SSL_WITH_CRYPTO means you cannot just say "-lcrypto" to
use SHA1 stuff, but need to say "-lcrypto -lssl".
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Copy description of new build configuration variables from the
commentary in the top Makefile, namely NO_FINK and NO_DARWIN_PORTS
configuration variables, putting them in site configuration section.
Signed-off-by: NJakub Narebski <jnareb@gmail.com>
Signed-off-by: NJunio C Hamano <junkio@cox.net>