Merge branch 'js/read-tree' into js/c-merge-recursive

* js/read-tree: (107 commits)
  read-tree: move merge functions to the library
  read-trees: refactor the unpack_trees() part
  tar-tree: illustrate an obscure feature better
  git.c: allow alias expansion without a git directory
  setup_git_directory_gently: do not barf when GIT_DIR is given.
  Build on Debian GNU/kFreeBSD
  Call setup_git_directory() much earlier
  Call setup_git_directory() early
  Display an error from update-ref if target ref name is invalid.
  Fix http-fetch
  t4103: fix binary patch application test.
  git-apply -R: binary patches are irreversible for now.
  Teach git-apply about '-R'
  Makefile: ssh-pull.o depends on ssh-fetch.c
  log and diff family: honor config even from subdirectories
  git-reset: detect update-ref error and report it.
  lost-found: use fsck-objects --full
  Teach git-http-fetch the --stdin switch
  Teach git-local-fetch the --stdin switch
  Make pull() support fetching multiple targets at once
  ...

1 files changed, 183 insertions, 0 deletions

diff --git a/configure.ac b/configure.ac
new file mode 100644
index 0000000000..c1f7751e6f
--- /dev/null
+++ b/configure.ac
@@ -0,0 +1,183 @@
+#                                               -*- Autoconf -*-
+# Process this file with autoconf to produce a configure script.
+
+AC_PREREQ(2.59)
+AC_INIT([git], [1.4.1], [git@vger.kernel.org])
+
+AC_CONFIG_SRCDIR([git.c])
+
+config_file=config.mak.autogen
+config_append=config.mak.append
+config_in=config.mak.in
+
+echo "# ${config_append}.  Generated by configure." > "${config_append}"
+
+
+## Definitions of macros
+# GIT_CONF_APPEND_LINE(LINE)
+# --------------------------
+# Append LINE to file ${config_append}
+AC_DEFUN([GIT_CONF_APPEND_LINE],
+[echo "$1" >> "${config_append}"])# GIT_CONF_APPEND_LINE
+
+
+## Checks for programs.
+AC_MSG_NOTICE([CHECKS for programs])
+#
+AC_PROG_CC
+#AC_PROG_INSTALL		# needs install-sh or install.sh in sources
+AC_CHECK_TOOL(AR, ar, :)
+AC_CHECK_PROGS(TAR, [gtar tar])
+#
+# Define NO_PYTHON if you want to lose all benefits of the recursive merge.
+
+
+## Checks for libraries.
+AC_MSG_NOTICE([CHECKS for libraries])
+#
+# Define NO_OPENSSL environment variable if you do not have OpenSSL.
+# Define NEEDS_SSL_WITH_CRYPTO if you need -lcrypto with -lssl (Darwin).
+AC_CHECK_LIB([ssl], [SHA1_Init],[],
+[AC_CHECK_LIB([crypto], [SHA1_INIT],
+ [GIT_CONF_APPEND_LINE(NEEDS_SSL_WITH_CRYPTO=YesPlease)],
+ [GIT_CONF_APPEND_LINE(NO_OPENSSL=YesPlease)])])
+#
+# Define NO_CURL if you do not have curl installed.  git-http-pull and
+# git-http-push are not built, and you cannot use http:// and https://
+# transports.
+AC_CHECK_LIB([curl], [curl_global_init],[],
+[GIT_CONF_APPEND_LINE(NO_CURL=YesPlease)])
+#
+# Define NO_EXPAT if you do not have expat installed.  git-http-push is
+# not built, and you cannot push using http:// and https:// transports.
+AC_CHECK_LIB([expat], [XML_ParserCreate],[],
+[GIT_CONF_APPEND_LINE(NO_EXPAT=YesPlease)])
+#
+# Define NEEDS_LIBICONV if linking with libc is not enough (Darwin).
+AC_CHECK_LIB([c], [iconv],[],
+[AC_CHECK_LIB([iconv],[iconv],
+ [GIT_CONF_APPEND_LINE(NEEDS_LIBICONV=YesPlease)],[])])
+#
+# Define NEEDS_SOCKET if linking with libc is not enough (SunOS,
+# Patrick Mauritz).
+AC_CHECK_LIB([c], [socket],[],
+[AC_CHECK_LIB([socket],[socket],
+ [GIT_CONF_APPEND_LINE(NEEDS_SOCKET=YesPlease)],[])])
+
+
+## Checks for header files.
+
+
+## Checks for typedefs, structures, and compiler characteristics.
+AC_MSG_NOTICE([CHECKS for typedefs, structures, and compiler characteristics])
+#
+# Define NO_D_INO_IN_DIRENT if you don't have d_ino in your struct dirent.
+AC_CHECK_MEMBER(struct dirent.d_ino,[],
+[GIT_CONF_APPEND_LINE(NO_D_INO_IN_DIRENT=YesPlease)],
+[#include <dirent.h>])
+#
+# Define NO_D_TYPE_IN_DIRENT if your platform defines DT_UNKNOWN but lacks
+# d_type in struct dirent (latest Cygwin -- will be fixed soonish).
+AC_CHECK_MEMBER(struct dirent.d_type,[],
+[GIT_CONF_APPEND_LINE(NO_D_TYPE_IN_DIRENT=YesPlease)],
+[#include <dirent.h>])
+#
+# Define NO_SOCKADDR_STORAGE if your platform does not have struct
+# sockaddr_storage.
+AC_CHECK_TYPE(struct sockaddr_storage,[],
+[GIT_CONF_APPEND_LINE(NO_SOCKADDR_STORAGE=YesPlease)],
+[#include <netinet/in.h>])
+
+
+## Checks for library functions.
+## (in default C library and libraries checked by AC_CHECK_LIB)
+AC_MSG_NOTICE([CHECKS for library functions])
+#
+# Define NO_STRCASESTR if you don't have strcasestr.
+AC_CHECK_FUNC(strcasestr,[],
+[GIT_CONF_APPEND_LINE(NO_STRCASESTR=YesPlease)])
+#
+# Define NO_STRLCPY if you don't have strlcpy.
+AC_CHECK_FUNC(strlcpy,[],
+[GIT_CONF_APPEND_LINE(NO_STRLCPY=YesPlease)])
+#
+# Define NO_SETENV if you don't have setenv in the C library.
+AC_CHECK_FUNC(setenv,[],
+[GIT_CONF_APPEND_LINE(NO_SETENV=YesPlease)])
+#
+# Define NO_MMAP if you want to avoid mmap.
+#
+# Define NO_IPV6 if you lack IPv6 support and getaddrinfo().
+#
+# Define NO_ICONV if your libc does not properly support iconv.
+
+
+## Other checks.
+# Define USE_PIC if you need the main git objects to be built with -fPIC
+# in order to build and link perl/Git.so.  x86-64 seems to need this.
+#
+# Define NO_SYMLINK_HEAD if you never want .git/HEAD to be a symbolic link.
+# Enable it on Windows.  By default, symrefs are still used.
+#
+# Define WITH_OWN_SUBPROCESS_PY if you want to use with python 2.3.
+#
+# Define NO_ACCURATE_DIFF if your diff program at least sometimes misses
+# a missing newline at the end of the file.
+
+
+## Site configuration
+## --with-PACKAGE[=ARG] and --without-PACKAGE
+# Define NO_SVN_TESTS if you want to skip time-consuming SVN interopability
+# tests.  These tests take up a significant amount of the total test time
+# but are not needed unless you plan to talk to SVN repos.
+#
+# Define MOZILLA_SHA1 environment variable when running make to make use of
+# a bundled SHA1 routine coming from Mozilla. It is GPL'd and should be fast
+# on non-x86 architectures (e.g. PowerPC), while the OpenSSL version (default
+# choice) has very fast version optimized for i586.
+#
+# Define PPC_SHA1 environment variable when running make to make use of
+# a bundled SHA1 routine optimized for PowerPC.
+#
+# Define ARM_SHA1 environment variable when running make to make use of
+# a bundled SHA1 routine optimized for ARM.
+#
+# Define NO_OPENSSL environment variable if you do not have OpenSSL.
+# This also implies MOZILLA_SHA1.
+#
+# Define NO_CURL if you do not have curl installed.  git-http-pull and
+# git-http-push are not built, and you cannot use http:// and https://
+# transports.
+#
+# Define CURLDIR=/foo/bar if your curl header and library files are in
+# /foo/bar/include and /foo/bar/lib directories.
+#
+# Define NO_EXPAT if you do not have expat installed.  git-http-push is
+# not built, and you cannot push using http:// and https:// transports.
+#
+# Define NO_MMAP if you want to avoid mmap.
+#
+# Define NO_PYTHON if you want to loose all benefits of the recursive merge.
+#
+## --enable-FEATURE[=ARG] and --disable-FEATURE
+# Define COLLISION_CHECK below if you believe that SHA1's
+# 1461501637330902918203684832716283019655932542976 hashes do not give you
+# sufficient guarantee that no collisions between objects will ever happen.
+#
+# Define USE_NSEC below if you want git to care about sub-second file mtimes
+# and ctimes. Note that you need recent glibc (at least 2.2.4) for this, and
+# it will BREAK YOUR LOCAL DIFFS! show-diff and anything using it will likely
+# randomly break unless your underlying filesystem supports those sub-second
+# times (my ext3 doesn't).
+#
+# Define USE_STDEV below if you want git to care about the underlying device
+# change being considered an inode change from the update-cache perspective.
+
+
+## Output files
+AC_CONFIG_FILES(["${config_file}":"${config_in}":"${config_append}"])
+AC_OUTPUT
+
+
+## Cleanup
+rm -f "${config_append}"