# The default target of this Makefile is...
all::

# Define V=1 to have a more verbose compile.
#
# 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_D_INO_IN_DIRENT if you don't have d_ino in your struct dirent.
#
# 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).
#
# Define NO_C99_FORMAT if your formatted IO functions (printf/scanf et.al.)
# do not support the 'size specifiers' introduced by C99, namely ll, hh,
# j, z, t. (representing long long int, char, intmax_t, size_t, ptrdiff_t).
# some C compilers supported these specifiers prior to C99 as an extension.
#
# Define NO_STRCASESTR if you don't have strcasestr.
#
# Define NO_STRLCPY if you don't have strlcpy.
#
# Define NO_STRTOUMAX if you don't have strtoumax in the C library.
# If your compiler also does not support long long or does not have
# strtoull, define NO_STRTOULL.
#
# Define NO_SETENV if you don't have setenv in the C library.
#
# 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 NO_SVN_TESTS if you want to skip time-consuming SVN interoperability
# 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 NO_FINK if you are building on Darwin/Mac OS X, have Fink
# installed in /sw, but don't want GIT to link against any libraries
# installed there.  If defined you may specify your own (or Fink's)
# include directories and library directories by defining CFLAGS
# and LDFLAGS appropriately.
#
# Define NO_DARWIN_PORTS if you are building on Darwin/Mac OS X,
# have DarwinPorts installed in /opt/local, but don't want GIT to
# link against any libraries installed there.  If defined you may
# specify your own (or DarwinPort's) include directories and
# library directories by defining CFLAGS and LDFLAGS appropriately.
#
# 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 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 NEEDS_SSL_WITH_CRYPTO if you need -lcrypto with -lssl (Darwin).
#
# Define NEEDS_LIBICONV if linking with libc is not enough (Darwin).
#
# Define NEEDS_SOCKET if linking with libc is not enough (SunOS,
# Patrick Mauritz).
#
# Define NO_MMAP if you want to avoid mmap.
#
# Define NO_PREAD if you have a problem with pread() system call (e.g.
# cygwin.dll before v1.5.22).
#
# Define NO_FAST_WORKING_DIRECTORY if accessing objects in pack files is
# generally faster on your platform than accessing the working directory.
#
# Define NO_TRUSTABLE_FILEMODE if your filesystem may claim to support
# the executable mode bit, but doesn't really do so.
#
# Define NO_IPV6 if you lack IPv6 support and getaddrinfo().
#
# Define NO_SOCKADDR_STORAGE if your platform does not have struct
# sockaddr_storage.
#
# Define NO_ICONV if your libc does not properly support iconv.
#
# Define OLD_ICONV if your library has an old iconv(), where the second
# (input buffer pointer) parameter is declared with type (const char **).
#
# Define NO_R_TO_GCC if your gcc does not like "-R/path/lib" that
# tells runtime paths to dynamic libraries; "-Wl,-rpath=/path/lib"
# is used instead.
#
# 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.
#
# Define NO_PERL_MAKEMAKER if you cannot use Makefiles generated by perl's
# MakeMaker (e.g. using ActiveState under Cygwin).
#

GIT-VERSION-FILE: .FORCE-GIT-VERSION-FILE
        @$(SHELL_PATH) ./GIT-VERSION-GEN
-include GIT-VERSION-FILE

uname_S := $(shell sh -c 'uname -s 2>/dev/null || echo not')
uname_M := $(shell sh -c 'uname -m 2>/dev/null || echo not')
uname_O := $(shell sh -c 'uname -o 2>/dev/null || echo not')
uname_R := $(shell sh -c 'uname -r 2>/dev/null || echo not')
uname_P := $(shell sh -c 'uname -p 2>/dev/null || echo not')

# CFLAGS and LDFLAGS are for the users to override from the command line.

CFLAGS = -g -O2 -Wall
LDFLAGS =
ALL_CFLAGS = $(CFLAGS)
ALL_LDFLAGS = $(LDFLAGS)
STRIP ?= strip

prefix = $(HOME)
bindir = $(prefix)/bin
gitexecdir = $(bindir)
template_dir = $(prefix)/share/git-core/templates/
ETC_GITCONFIG = $(prefix)/etc/gitconfig
# DESTDIR=

# default configuration for gitweb
GITWEB_CONFIG = gitweb_config.perl
GITWEB_HOME_LINK_STR = projects
GITWEB_SITENAME =
GITWEB_PROJECTROOT = /pub/git
GITWEB_EXPORT_OK =
GITWEB_STRICT_EXPORT =
GITWEB_BASE_URL =
GITWEB_LIST =
GITWEB_HOMETEXT = indextext.html
GITWEB_CSS = gitweb.css
GITWEB_LOGO = git-logo.png
GITWEB_FAVICON = git-favicon.png
GITWEB_SITE_HEADER =
GITWEB_SITE_FOOTER =

export prefix bindir gitexecdir template_dir

CC = gcc
AR = ar
TAR = tar
INSTALL = install
RPMBUILD = rpmbuild

# sparse is architecture-neutral, which means that we need to tell it
# explicitly what architecture to check for. Fix this up for yours..
SPARSE_FLAGS = -D__BIG_ENDIAN__ -D__powerpc__



### --- END CONFIGURATION SECTION ---

# Those must not be GNU-specific; they are shared with perl/ which may
# be built by a different compiler. (Note that this is an artifact now
# but it still might be nice to keep that distinction.)
BASIC_CFLAGS =
BASIC_LDFLAGS =

SCRIPT_SH = \
        git-bisect.sh git-checkout.sh \
        git-clean.sh git-clone.sh git-commit.sh \
        git-fetch.sh git-gc.sh \
        git-ls-remote.sh \
        git-merge-one-file.sh git-mergetool.sh git-parse-remote.sh \
        git-pull.sh git-rebase.sh \
        git-repack.sh git-request-pull.sh git-reset.sh \
        git-sh-setup.sh \
        git-tag.sh git-verify-tag.sh \
        git-applymbox.sh git-applypatch.sh git-am.sh \
        git-merge.sh git-merge-stupid.sh git-merge-octopus.sh \
        git-merge-resolve.sh git-merge-ours.sh \
        git-lost-found.sh git-quiltimport.sh

SCRIPT_PERL = \
        git-add--interactive.perl \
        git-archimport.perl git-cvsimport.perl git-relink.perl \
        git-cvsserver.perl git-remote.perl \
        git-svnimport.perl git-cvsexportcommit.perl \
        git-send-email.perl git-svn.perl

SCRIPTS = $(patsubst %.sh,%,$(SCRIPT_SH)) \
          $(patsubst %.perl,%,$(SCRIPT_PERL)) \
          git-status git-instaweb

# ... and all the rest that could be moved out of bindir to gitexecdir
PROGRAMS = \
        git-convert-objects$X git-fetch-pack$X git-fsck$X \
        git-hash-object$X git-index-pack$X git-local-fetch$X \
        git-fast-import$X \
        git-merge-base$X \
        git-daemon$X \
        git-merge-index$X git-mktag$X git-mktree$X git-patch-id$X \
        git-peek-remote$X git-receive-pack$X \
        git-send-pack$X git-shell$X \
        git-show-index$X git-ssh-fetch$X \
        git-ssh-upload$X git-unpack-file$X \
        git-update-server-info$X \
        git-upload-pack$X git-verify-pack$X \
        git-pack-redundant$X git-var$X \
        git-merge-tree$X git-imap-send$X \
        git-merge-recursive$X \
        $(EXTRA_PROGRAMS)

# Empty...
EXTRA_PROGRAMS =

BUILT_INS = \
        git-format-patch$X git-show$X git-whatchanged$X git-cherry$X \
        git-get-tar-commit-id$X git-init$X git-repo-config$X \
        git-fsck-objects$X git-cherry-pick$X \
        $(patsubst builtin-%.o,git-%$X,$(BUILTIN_OBJS))

# what 'all' will build and 'install' will install, in gitexecdir
ALL_PROGRAMS = $(PROGRAMS) $(SCRIPTS)

# Backward compatibility -- to be removed after 1.0
PROGRAMS += git-ssh-pull$X git-ssh-push$X

# Set paths to tools early so that they can be used for version tests.
ifndef SHELL_PATH
        SHELL_PATH = /bin/sh
endif
ifndef PERL_PATH
        PERL_PATH = /usr/bin/perl
endif

export PERL_PATH

LIB_FILE=libgit.a
XDIFF_LIB=xdiff/lib.a

LIB_H = \
        archive.h blob.h cache.h commit.h csum-file.h delta.h grep.h \
        diff.h object.h pack.h pkt-line.h quote.h refs.h list-objects.h sideband.h \
        run-command.h strbuf.h tag.h tree.h git-compat-util.h revision.h \
        tree-walk.h log-tree.h dir.h path-list.h unpack-trees.h builtin.h \
        utf8.h reflog-walk.h

DIFF_OBJS = \
        diff.o diff-lib.o diffcore-break.o diffcore-order.o \
        diffcore-pickaxe.o diffcore-rename.o tree-diff.o combine-diff.o \
        diffcore-delta.o log-tree.o

LIB_OBJS = \
        blob.o commit.o connect.o csum-file.o cache-tree.o base85.o \
        date.o diff-delta.o entry.o exec_cmd.o ident.o \
        interpolate.o \
        lockfile.o \
        object.o pack-check.o patch-delta.o path.o pkt-line.o sideband.o \
        reachable.o reflog-walk.o \
        quote.o read-cache.o refs.o run-command.o dir.o object-refs.o \
        server-info.o setup.o sha1_file.o sha1_name.o strbuf.o \
        tag.o tree.o usage.o config.o environment.o ctype.o copy.o \
        revision.o pager.o tree-walk.o xdiff-interface.o \
        write_or_die.o trace.o list-objects.o grep.o \
        alloc.o merge-file.o path-list.o help.o unpack-trees.o $(DIFF_OBJS) \
        color.o wt-status.o archive-zip.o archive-tar.o shallow.o utf8.o \
        convert.o

BUILTIN_OBJS = \
        builtin-add.o \
        builtin-annotate.o \
        builtin-apply.o \
        builtin-archive.o \
        builtin-blame.o \
        builtin-branch.o \
        builtin-bundle.o \
        builtin-cat-file.o \
        builtin-checkout-index.o \
        builtin-check-ref-format.o \
        builtin-commit-tree.o \
        builtin-count-objects.o \
        builtin-describe.o \
        builtin-diff.o \
        builtin-diff-files.o \
        builtin-diff-index.o \
        builtin-diff-tree.o \
        builtin-fmt-merge-msg.o \
        builtin-for-each-ref.o \
        builtin-fsck.o \
        builtin-grep.o \
        builtin-init-db.o \
        builtin-log.o \
        builtin-ls-files.o \
        builtin-ls-tree.o \
        builtin-mailinfo.o \
        builtin-mailsplit.o \
        builtin-merge-base.o \
        builtin-merge-file.o \
        builtin-mv.o \
        builtin-name-rev.o \
        builtin-pack-objects.o \
        builtin-prune.o \
        builtin-prune-packed.o \
        builtin-push.o \
        builtin-read-tree.o \
        builtin-reflog.o \
        builtin-config.o \
        builtin-rerere.o \
        builtin-rev-list.o \
        builtin-rev-parse.o \
        builtin-revert.o \
        builtin-rm.o \
        builtin-runstatus.o \
        builtin-shortlog.o \
        builtin-show-branch.o \
        builtin-stripspace.o \
        builtin-symbolic-ref.o \
        builtin-tar-tree.o \
        builtin-unpack-objects.o \
        builtin-update-index.o \
        builtin-update-ref.o \
        builtin-upload-archive.o \
        builtin-verify-pack.o \
        builtin-write-tree.o \
        builtin-show-ref.o \
        builtin-pack-refs.o

GITLIBS = $(LIB_FILE) $(XDIFF_LIB)
EXTLIBS = -lz

#
# Platform specific tweaks
#

# We choose to avoid "if .. else if .. else .. endif endif"
# because maintaining the nesting to match is a pain.  If
# we had "elif" things would have been much nicer...

ifeq ($(uname_S),Linux)
        NO_STRLCPY = YesPlease
endif
ifeq ($(uname_S),GNU/kFreeBSD)
        NO_STRLCPY = YesPlease
endif
ifeq ($(uname_S),Darwin)
        NEEDS_SSL_WITH_CRYPTO = YesPlease
        NEEDS_LIBICONV = YesPlease
        NO_STRLCPY = YesPlease
endif
ifeq ($(uname_S),SunOS)
        NEEDS_SOCKET = YesPlease
        NEEDS_NSL = YesPlease
        SHELL_PATH = /bin/bash
        NO_STRCASESTR = YesPlease
        ifeq ($(uname_R),5.8)
                NEEDS_LIBICONV = YesPlease
                NO_UNSETENV = YesPlease
                NO_SETENV = YesPlease
                NO_C99_FORMAT = YesPlease
                NO_STRTOUMAX = YesPlease
        endif
        ifeq ($(uname_R),5.9)
                NO_UNSETENV = YesPlease
                NO_SETENV = YesPlease
                NO_C99_FORMAT = YesPlease
                NO_STRTOUMAX = YesPlease
        endif
        INSTALL = ginstall
        TAR = gtar
        BASIC_CFLAGS += -D__EXTENSIONS__
endif
ifeq ($(uname_O),Cygwin)
        NO_D_TYPE_IN_DIRENT = YesPlease
        NO_D_INO_IN_DIRENT = YesPlease
        NO_STRCASESTR = YesPlease
        NO_SYMLINK_HEAD = YesPlease
        NEEDS_LIBICONV = YesPlease
        NO_FAST_WORKING_DIRECTORY = UnfortunatelyYes
        NO_TRUSTABLE_FILEMODE = UnfortunatelyYes
        # There are conflicting reports about this.
        # On some boxes NO_MMAP is needed, and not so elsewhere.
        # Try commenting this out if you suspect MMAP is more efficient
        NO_MMAP = YesPlease
        NO_IPV6 = YesPlease
        X = .exe
endif
ifeq ($(uname_S),FreeBSD)
        NEEDS_LIBICONV = YesPlease
        BASIC_CFLAGS += -I/usr/local/include
        BASIC_LDFLAGS += -L/usr/local/lib
endif
ifeq ($(uname_S),OpenBSD)
        NO_STRCASESTR = YesPlease
        NEEDS_LIBICONV = YesPlease
        BASIC_CFLAGS += -I/usr/local/include
        BASIC_LDFLAGS += -L/usr/local/lib
endif
ifeq ($(uname_S),NetBSD)
        ifeq ($(shell expr "$(uname_R)" : '[01]\.'),2)
                NEEDS_LIBICONV = YesPlease
        endif
        BASIC_CFLAGS += -I/usr/pkg/include
        BASIC_LDFLAGS += -L/usr/pkg/lib
        ALL_LDFLAGS += -Wl,-rpath,/usr/pkg/lib
endif
ifeq ($(uname_S),AIX)
        NO_STRCASESTR=YesPlease
        NO_STRLCPY = YesPlease
        NEEDS_LIBICONV=YesPlease
endif
ifeq ($(uname_S),IRIX64)
        NO_IPV6=YesPlease
        NO_SETENV=YesPlease
        NO_STRCASESTR=YesPlease
        NO_STRLCPY = YesPlease
        NO_SOCKADDR_STORAGE=YesPlease
        SHELL_PATH=/usr/gnu/bin/bash
        BASIC_CFLAGS += -DPATH_MAX=1024
        # for now, build 32-bit version
        BASIC_LDFLAGS += -L/usr/lib32
endif
ifneq (,$(findstring arm,$(uname_M)))
        ARM_SHA1 = YesPlease
endif

-include config.mak.autogen
-include config.mak

ifeq ($(uname_S),Darwin)
        ifndef NO_FINK
                ifeq ($(shell test -d /sw/lib && echo y),y)
                        BASIC_CFLAGS += -I/sw/include
                        BASIC_LDFLAGS += -L/sw/lib
                endif
        endif
        ifndef NO_DARWIN_PORTS
                ifeq ($(shell test -d /opt/local/lib && echo y),y)
                        BASIC_CFLAGS += -I/opt/local/include
                        BASIC_LDFLAGS += -L/opt/local/lib
                endif
        endif
endif

ifdef NO_R_TO_GCC_LINKER
        # Some gcc does not accept and pass -R to the linker to specify
        # the runtime dynamic library path.
        CC_LD_DYNPATH = -Wl,-rpath=
else
        CC_LD_DYNPATH = -R
endif

ifndef NO_CURL
        ifdef CURLDIR
                # Try "-Wl,-rpath=$(CURLDIR)/lib" in such a case.
                BASIC_CFLAGS += -I$(CURLDIR)/include
                CURL_LIBCURL = -L$(CURLDIR)/lib $(CC_LD_DYNPATH)$(CURLDIR)/lib -lcurl
        else
                CURL_LIBCURL = -lcurl
        endif
        PROGRAMS += git-http-fetch$X
        curl_check := $(shell (echo 070908; curl-config --vernum) | sort -r | sed -ne 2p)
        ifeq "$(curl_check)" "070908"
                ifndef NO_EXPAT
                        PROGRAMS += git-http-push$X
                endif
        endif
        ifndef NO_EXPAT
                EXPAT_LIBEXPAT = -lexpat
        endif
endif

ifndef NO_OPENSSL
        OPENSSL_LIBSSL = -lssl
        ifdef OPENSSLDIR
                BASIC_CFLAGS += -I$(OPENSSLDIR)/include
                OPENSSL_LINK = -L$(OPENSSLDIR)/lib $(CC_LD_DYNPATH)$(OPENSSLDIR)/lib
        else
                OPENSSL_LINK =
        endif
else
        BASIC_CFLAGS += -DNO_OPENSSL
        MOZILLA_SHA1 = 1
        OPENSSL_LIBSSL =
endif
ifdef NEEDS_SSL_WITH_CRYPTO
        LIB_4_CRYPTO = $(OPENSSL_LINK) -lcrypto -lssl
else
        LIB_4_CRYPTO = $(OPENSSL_LINK) -lcrypto
endif
ifdef NEEDS_LIBICONV
        ifdef ICONVDIR
                BASIC_CFLAGS += -I$(ICONVDIR)/include
                ICONV_LINK = -L$(ICONVDIR)/lib $(CC_LD_DYNPATH)$(ICONVDIR)/lib
        else
                ICONV_LINK =
        endif
        EXTLIBS += $(ICONV_LINK) -liconv
endif
ifdef NEEDS_SOCKET
        EXTLIBS += -lsocket
endif
ifdef NEEDS_NSL
        EXTLIBS += -lnsl
endif
ifdef NO_D_TYPE_IN_DIRENT
        BASIC_CFLAGS += -DNO_D_TYPE_IN_DIRENT
endif
ifdef NO_D_INO_IN_DIRENT
        BASIC_CFLAGS += -DNO_D_INO_IN_DIRENT
endif
ifdef NO_C99_FORMAT
        BASIC_CFLAGS += -DNO_C99_FORMAT
endif
ifdef NO_SYMLINK_HEAD
        BASIC_CFLAGS += -DNO_SYMLINK_HEAD
endif
ifdef NO_STRCASESTR
        COMPAT_CFLAGS += -DNO_STRCASESTR
        COMPAT_OBJS += compat/strcasestr.o
endif
ifdef NO_STRLCPY
        COMPAT_CFLAGS += -DNO_STRLCPY
        COMPAT_OBJS += compat/strlcpy.o
endif
ifdef NO_STRTOUMAX
        COMPAT_CFLAGS += -DNO_STRTOUMAX
        COMPAT_OBJS += compat/strtoumax.o
endif
ifdef NO_STRTOULL
        COMPAT_CFLAGS += -DNO_STRTOULL
endif
ifdef NO_SETENV
        COMPAT_CFLAGS += -DNO_SETENV
        COMPAT_OBJS += compat/setenv.o
endif
ifdef NO_UNSETENV
        COMPAT_CFLAGS += -DNO_UNSETENV
        COMPAT_OBJS += compat/unsetenv.o
endif
ifdef NO_MMAP
        COMPAT_CFLAGS += -DNO_MMAP
        COMPAT_OBJS += compat/mmap.o
endif
ifdef NO_PREAD
        COMPAT_CFLAGS += -DNO_PREAD
        COMPAT_OBJS += compat/pread.o
endif
ifdef NO_FAST_WORKING_DIRECTORY
        BASIC_CFLAGS += -DNO_FAST_WORKING_DIRECTORY
endif
ifdef NO_TRUSTABLE_FILEMODE
        BASIC_CFLAGS += -DNO_TRUSTABLE_FILEMODE
endif
ifdef NO_IPV6
        BASIC_CFLAGS += -DNO_IPV6
endif
ifdef NO_SOCKADDR_STORAGE
ifdef NO_IPV6
        BASIC_CFLAGS += -Dsockaddr_storage=sockaddr_in
else
        BASIC_CFLAGS += -Dsockaddr_storage=sockaddr_in6
endif
endif
ifdef NO_INET_NTOP
        LIB_OBJS += compat/inet_ntop.o
endif
ifdef NO_INET_PTON
        LIB_OBJS += compat/inet_pton.o
endif

ifdef NO_ICONV
        BASIC_CFLAGS += -DNO_ICONV
endif

ifdef OLD_ICONV
        BASIC_CFLAGS += -DOLD_ICONV
endif

ifdef PPC_SHA1
        SHA1_HEADER = "ppc/sha1.h"
        LIB_OBJS += ppc/sha1.o ppc/sha1ppc.o
else
ifdef ARM_SHA1
        SHA1_HEADER = "arm/sha1.h"
        LIB_OBJS += arm/sha1.o arm/sha1_arm.o
else
ifdef MOZILLA_SHA1
        SHA1_HEADER = "mozilla-sha1/sha1.h"
        LIB_OBJS += mozilla-sha1/sha1.o
else
        SHA1_HEADER = <openssl/sha.h>
        EXTLIBS += $(LIB_4_CRYPTO)
endif
endif
endif
ifdef NO_PERL_MAKEMAKER
        export NO_PERL_MAKEMAKER
endif

QUIET_SUBDIR0  = $(MAKE) -C # space to separate -C and subdir
QUIET_SUBDIR1  =

ifneq ($(findstring $(MAKEFLAGS),w),w)
PRINT_DIR = --no-print-directory
else # "make -w"
NO_SUBDIR = :
endif

ifneq ($(findstring $(MAKEFLAGS),s),s)
ifndef V
        QUIET_CC       = @echo '   ' CC $@;
        QUIET_AR       = @echo '   ' AR $@;
        QUIET_LINK     = @echo '   ' LINK $@;
        QUIET_BUILT_IN = @echo '   ' BUILTIN $@;
        QUIET_GEN      = @echo '   ' GEN $@;
        QUIET_SUBDIR0  = @subdir=
        QUIET_SUBDIR1  = ;$(NO_SUBDIR) echo '   ' SUBDIR $$subdir; \
                         $(MAKE) $(PRINT_DIR) -C $$subdir
        export V
        export QUIET_GEN
        export QUIET_BUILT_IN
endif
endif

# Shell quote (do not use $(call) to accommodate ancient setups);

SHA1_HEADER_SQ = $(subst ','\'',$(SHA1_HEADER))
ETC_GITCONFIG_SQ = $(subst ','\'',$(ETC_GITCONFIG))

DESTDIR_SQ = $(subst ','\'',$(DESTDIR))
bindir_SQ = $(subst ','\'',$(bindir))
gitexecdir_SQ = $(subst ','\'',$(gitexecdir))
template_dir_SQ = $(subst ','\'',$(template_dir))
prefix_SQ = $(subst ','\'',$(prefix))

SHELL_PATH_SQ = $(subst ','\'',$(SHELL_PATH))
PERL_PATH_SQ = $(subst ','\'',$(PERL_PATH))

LIBS = $(GITLIBS) $(EXTLIBS)

BASIC_CFLAGS += -DSHA1_HEADER='$(SHA1_HEADER_SQ)' \
        -DETC_GITCONFIG='"$(ETC_GITCONFIG_SQ)"' $(COMPAT_CFLAGS)
LIB_OBJS += $(COMPAT_OBJS)

ALL_CFLAGS += $(BASIC_CFLAGS)
ALL_LDFLAGS += $(BASIC_LDFLAGS)

export prefix gitexecdir TAR INSTALL DESTDIR SHELL_PATH template_dir


### Build rules

all:: $(ALL_PROGRAMS) $(BUILT_INS) git$X gitk gitweb/gitweb.cgi
ifneq (,$X)
        $(foreach p,$(patsubst %$X,%,$(filter %$X,$(ALL_PROGRAMS) $(BUILT_INS) git$X)), rm -f '$p';)
endif

all::
        $(QUIET_SUBDIR0)git-gui $(QUIET_SUBDIR1) all
        $(QUIET_SUBDIR0)perl $(QUIET_SUBDIR1) PERL_PATH='$(PERL_PATH_SQ)' prefix='$(prefix_SQ)' all
        $(QUIET_SUBDIR0)templates $(QUIET_SUBDIR1)

strip: $(PROGRAMS) git$X
        $(STRIP) $(STRIP_OPTS) $(PROGRAMS) git$X

git$X: git.c common-cmds.h $(BUILTIN_OBJS) $(GITLIBS) GIT-CFLAGS
        $(QUIET_LINK)$(CC) -DGIT_VERSION='"$(GIT_VERSION)"' \
                $(ALL_CFLAGS) -o $@ $(filter %.c,$^) \
                $(BUILTIN_OBJS) $(ALL_LDFLAGS) $(LIBS)

help.o: common-cmds.h

$(BUILT_INS): git$X
        $(QUIET_BUILT_IN)rm -f $@ && ln git$X $@

common-cmds.h: Documentation/git-*.txt
        $(QUIET_GEN)./generate-cmdlist.sh > $@+ && mv $@+ $@

$(patsubst %.sh,%,$(SCRIPT_SH)) : % : %.sh
        $(QUIET_GEN)rm -f $@ $@+ && \
        sed -e '1s|#!.*/sh|#!$(SHELL_PATH_SQ)|' \
            -e 's|@@PERL@@|$(PERL_PATH_SQ)|g' \
            -e 's/@@GIT_VERSION@@/$(GIT_VERSION)/g' \
            -e 's/@@NO_CURL@@/$(NO_CURL)/g' \
            $@.sh >$@+ && \
        chmod +x $@+ && \
        mv $@+ $@

$(patsubst %.perl,%,$(SCRIPT_PERL)): perl/perl.mak

perl/perl.mak: GIT-CFLAGS
        $(QUIET_SUBDIR0)perl $(QUIET_SUBDIR1) PERL_PATH='$(PERL_PATH_SQ)' prefix='$(prefix_SQ)' $(@F)

$(patsubst %.perl,%,$(SCRIPT_PERL)): % : %.perl
        $(QUIET_GEN)rm -f $@ $@+ && \
        INSTLIBDIR=`$(MAKE) -C perl -s --no-print-directory instlibdir` && \
        sed -e '1{' \
            -e '        s|#!.*perl|#!$(PERL_PATH_SQ)|' \
            -e '        h' \
            -e '        s=.*=use lib (split(/:/, $$ENV{GITPERLLIB} || "@@INSTLIBDIR@@"));=' \
            -e '        H' \
            -e '        x' \
            -e '}' \
            -e 's|@@INSTLIBDIR@@|'"$$INSTLIBDIR"'|g' \
            -e 's/@@GIT_VERSION@@/$(GIT_VERSION)/g' \
            $@.perl >$@+ && \
        chmod +x $@+ && \
        mv $@+ $@

git-status: git-commit
        $(QUIET_GEN)cp $< $@+ && mv $@+ $@

gitweb/gitweb.cgi: gitweb/gitweb.perl
        $(QUIET_GEN)rm -f $@ $@+ && \
        sed -e '1s|#!.*perl|#!$(PERL_PATH_SQ)|' \
            -e 's|++GIT_VERSION++|$(GIT_VERSION)|g' \
            -e 's|++GIT_BINDIR++|$(bindir)|g' \
            -e 's|++GITWEB_CONFIG++|$(GITWEB_CONFIG)|g' \
            -e 's|++GITWEB_HOME_LINK_STR++|$(GITWEB_HOME_LINK_STR)|g' \
            -e 's|++GITWEB_SITENAME++|$(GITWEB_SITENAME)|g' \
            -e 's|++GITWEB_PROJECTROOT++|$(GITWEB_PROJECTROOT)|g' \
            -e 's|++GITWEB_EXPORT_OK++|$(GITWEB_EXPORT_OK)|g' \
            -e 's|++GITWEB_STRICT_EXPORT++|$(GITWEB_STRICT_EXPORT)|g' \
            -e 's|++GITWEB_BASE_URL++|$(GITWEB_BASE_URL)|g' \
            -e 's|++GITWEB_LIST++|$(GITWEB_LIST)|g' \
            -e 's|++GITWEB_HOMETEXT++|$(GITWEB_HOMETEXT)|g' \
            -e 's|++GITWEB_CSS++|$(GITWEB_CSS)|g' \
            -e 's|++GITWEB_LOGO++|$(GITWEB_LOGO)|g' \
            -e 's|++GITWEB_FAVICON++|$(GITWEB_FAVICON)|g' \
            -e 's|++GITWEB_SITE_HEADER++|$(GITWEB_SITE_HEADER)|g' \
            -e 's|++GITWEB_SITE_FOOTER++|$(GITWEB_SITE_FOOTER)|g' \
            $< >$@+ && \
        chmod +x $@+ && \
        mv $@+ $@

git-instaweb: git-instaweb.sh gitweb/gitweb.cgi gitweb/gitweb.css
        $(QUIET_GEN)rm -f $@ $@+ && \
        sed -e '1s|#!.*/sh|#!$(SHELL_PATH_SQ)|' \
            -e 's/@@GIT_VERSION@@/$(GIT_VERSION)/g' \
            -e 's/@@NO_CURL@@/$(NO_CURL)/g' \
            -e '/@@GITWEB_CGI@@/r gitweb/gitweb.cgi' \
            -e '/@@GITWEB_CGI@@/d' \
            -e '/@@GITWEB_CSS@@/r gitweb/gitweb.css' \
            -e '/@@GITWEB_CSS@@/d' \
            $@.sh > $@+ && \
        chmod +x $@+ && \
        mv $@+ $@

configure: configure.ac
        $(QUIET_GEN)rm -f $@ $<+ && \
        sed -e 's/@@GIT_VERSION@@/$(GIT_VERSION)/g' \
            $< > $<+ && \
        autoconf -o $@ $<+ && \
        rm -f $<+

# These can record GIT_VERSION
git$X git.spec \
        $(patsubst %.sh,%,$(SCRIPT_SH)) \
        $(patsubst %.perl,%,$(SCRIPT_PERL)) \
        : GIT-VERSION-FILE

%.o: %.c GIT-CFLAGS
        $(QUIET_CC)$(CC) -o $*.o -c $(ALL_CFLAGS) $<
%.o: %.S
        $(QUIET_CC)$(CC) -o $*.o -c $(ALL_CFLAGS) $<

exec_cmd.o: exec_cmd.c GIT-CFLAGS
        $(QUIET_CC)$(CC) -o $*.o -c $(ALL_CFLAGS) '-DGIT_EXEC_PATH="$(gitexecdir_SQ)"' $<
builtin-init-db.o: builtin-init-db.c GIT-CFLAGS
        $(QUIET_CC)$(CC) -o $*.o -c $(ALL_CFLAGS) -DDEFAULT_GIT_TEMPLATE_DIR='"$(template_dir_SQ)"' $<

http.o: http.c GIT-CFLAGS
        $(QUIET_CC)$(CC) -o $*.o -c $(ALL_CFLAGS) -DGIT_USER_AGENT='"git/$(GIT_VERSION)"' $<

ifdef NO_EXPAT
http-fetch.o: http-fetch.c http.h GIT-CFLAGS
        $(QUIET_CC)$(CC) -o $*.o -c $(ALL_CFLAGS) -DNO_EXPAT $<
endif

git-%$X: %.o $(GITLIBS)
        $(QUIET_LINK)$(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) $(filter %.o,$^) $(LIBS)

ssh-pull.o: ssh-fetch.c
ssh-push.o: ssh-upload.c
git-local-fetch$X: fetch.o
git-ssh-fetch$X: rsh.o fetch.o
git-ssh-upload$X: rsh.o
git-ssh-pull$X: rsh.o fetch.o
git-ssh-push$X: rsh.o

git-imap-send$X: imap-send.o $(LIB_FILE)

http.o http-fetch.o http-push.o: http.h
git-http-fetch$X: fetch.o http.o http-fetch.o $(GITLIBS)
        $(QUIET_LINK)$(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) $(filter %.o,$^) \
                $(LIBS) $(CURL_LIBCURL) $(EXPAT_LIBEXPAT)

git-http-push$X: revision.o http.o http-push.o $(GITLIBS)
        $(QUIET_LINK)$(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) $(filter %.o,$^) \
                $(LIBS) $(CURL_LIBCURL) $(EXPAT_LIBEXPAT)

$(LIB_OBJS) $(BUILTIN_OBJS) fetch.o: $(LIB_H)
$(patsubst git-%$X,%.o,$(PROGRAMS)): $(LIB_H) $(wildcard */*.h)
$(DIFF_OBJS): diffcore.h

$(LIB_FILE): $(LIB_OBJS)
        $(QUIET_AR)rm -f $@ && $(AR) rcs $@ $(LIB_OBJS)

XDIFF_OBJS=xdiff/xdiffi.o xdiff/xprepare.o xdiff/xutils.o xdiff/xemit.o \
        xdiff/xmerge.o
$(XDIFF_OBJS): xdiff/xinclude.h xdiff/xmacros.h xdiff/xdiff.h xdiff/xtypes.h \
        xdiff/xutils.h xdiff/xprepare.h xdiff/xdiffi.h xdiff/xemit.h

$(XDIFF_LIB): $(XDIFF_OBJS)
        $(QUIET_AR)rm -f $@ && $(AR) rcs $@ $(XDIFF_OBJS)


perl/Makefile: perl/Git.pm perl/Makefile.PL GIT-CFLAGS
        (cd perl && $(PERL_PATH) Makefile.PL \
                PREFIX='$(prefix_SQ)')

doc:
        $(MAKE) -C Documentation all

TAGS:
        rm -f TAGS
        find . -name '*.[hcS]' -print | xargs etags -a

tags:
        rm -f tags
        find . -name '*.[hcS]' -print | xargs ctags -a

### Detect prefix changes
TRACK_CFLAGS = $(subst ','\'',$(ALL_CFLAGS)):\
             $(bindir_SQ):$(gitexecdir_SQ):$(template_dir_SQ):$(prefix_SQ)

GIT-CFLAGS: .FORCE-GIT-CFLAGS
        @FLAGS='$(TRACK_CFLAGS)'; \
            if test x"$$FLAGS" != x"`cat GIT-CFLAGS 2>/dev/null`" ; then \
                echo 1>&2 "    * new build flags or prefix"; \
                echo "$$FLAGS" >GIT-CFLAGS; \
            fi

### Testing rules

# GNU make supports exporting all variables by "export" without parameters.
# However, the environment gets quite big, and some programs have problems
# with that.

export NO_SVN_TESTS

test: all test-chmtime$X
        $(MAKE) -C t/ all

test-date$X: test-date.c date.o ctype.o
        $(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) test-date.c date.o ctype.o

test-delta$X: test-delta.o diff-delta.o patch-delta.o $(GITLIBS)
        $(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) $(filter %.o,$^) $(LIBS)

test-dump-cache-tree$X: dump-cache-tree.o $(GITLIBS)
        $(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) $(filter %.o,$^) $(LIBS)

test-sha1$X: test-sha1.o $(GITLIBS)
        $(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) $(filter %.o,$^) $(LIBS)

test-chmtime$X: test-chmtime.c
        $(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) $<

check-sha1:: test-sha1$X
        ./test-sha1.sh

check: common-cmds.h
        for i in *.c; do sparse $(ALL_CFLAGS) $(SPARSE_FLAGS) $$i || exit; done



### Installation rules

install: all
        $(INSTALL) -d -m755 '$(DESTDIR_SQ)$(bindir_SQ)'
        $(INSTALL) -d -m755 '$(DESTDIR_SQ)$(gitexecdir_SQ)'
        $(INSTALL) $(ALL_PROGRAMS) '$(DESTDIR_SQ)$(gitexecdir_SQ)'
        $(INSTALL) git$X gitk '$(DESTDIR_SQ)$(bindir_SQ)'
        $(MAKE) -C templates DESTDIR='$(DESTDIR_SQ)' install
        $(MAKE) -C perl prefix='$(prefix_SQ)' install
        $(MAKE) -C git-gui install
        if test 'z$(bindir_SQ)' != 'z$(gitexecdir_SQ)'; \
        then \
                ln -f '$(DESTDIR_SQ)$(bindir_SQ)/git$X' \
                        '$(DESTDIR_SQ)$(gitexecdir_SQ)/git$X' || \
                cp '$(DESTDIR_SQ)$(bindir_SQ)/git$X' \
                        '$(DESTDIR_SQ)$(gitexecdir_SQ)/git$X'; \
        fi
        $(foreach p,$(BUILT_INS), rm -f '$(DESTDIR_SQ)$(gitexecdir_SQ)/$p' && ln '$(DESTDIR_SQ)$(gitexecdir_SQ)/git$X' '$(DESTDIR_SQ)$(gitexecdir_SQ)/$p' ;)
ifneq (,$X)
        $(foreach p,$(patsubst %$X,%,$(filter %$X,$(ALL_PROGRAMS) $(BUILT_INS) git$X)), rm -f '$(DESTDIR_SQ)$(gitexecdir_SQ)/$p';)
endif

install-doc:
        $(MAKE) -C Documentation install

quick-install-doc:
        $(MAKE) -C Documentation quick-install



### Maintainer's dist rules

git.spec: git.spec.in
        sed -e 's/@@VERSION@@/$(GIT_VERSION)/g' < $< > $@+
        mv $@+ $@

GIT_TARNAME=git-$(GIT_VERSION)
dist: git.spec git-archive
        ./git-archive --format=tar \
                --prefix=$(GIT_TARNAME)/ HEAD^{tree} > $(GIT_TARNAME).tar
        @mkdir -p $(GIT_TARNAME)
        @cp git.spec $(GIT_TARNAME)
        @echo $(GIT_VERSION) > $(GIT_TARNAME)/version
        @$(MAKE) -C git-gui TARDIR=../$(GIT_TARNAME)/git-gui dist-version
        $(TAR) rf $(GIT_TARNAME).tar \
                $(GIT_TARNAME)/git.spec \
                $(GIT_TARNAME)/version \
                $(GIT_TARNAME)/git-gui/version
        @rm -rf $(GIT_TARNAME)
        gzip -f -9 $(GIT_TARNAME).tar

rpm: dist
        $(RPMBUILD) -ta $(GIT_TARNAME).tar.gz

htmldocs = git-htmldocs-$(GIT_VERSION)
manpages = git-manpages-$(GIT_VERSION)
dist-doc:
        rm -fr .doc-tmp-dir
        mkdir .doc-tmp-dir
        $(MAKE) -C Documentation WEBDOC_DEST=../.doc-tmp-dir install-webdoc
        cd .doc-tmp-dir && $(TAR) cf ../$(htmldocs).tar .
        gzip -n -9 -f $(htmldocs).tar
        :
        rm -fr .doc-tmp-dir
        mkdir .doc-tmp-dir .doc-tmp-dir/man1 .doc-tmp-dir/man7
        $(MAKE) -C Documentation DESTDIR=./ \
                man1dir=../.doc-tmp-dir/man1 \
                man7dir=../.doc-tmp-dir/man7 \
                install
        cd .doc-tmp-dir && $(TAR) cf ../$(manpages).tar .
        gzip -n -9 -f $(manpages).tar
        rm -fr .doc-tmp-dir

### Cleaning rules

clean:
        rm -f *.o mozilla-sha1/*.o arm/*.o ppc/*.o compat/*.o xdiff/*.o \
                $(LIB_FILE) $(XDIFF_LIB)
        rm -f $(ALL_PROGRAMS) $(BUILT_INS) git$X
        rm -f *.spec *.pyc *.pyo */*.pyc */*.pyo common-cmds.h TAGS tags
        rm -rf autom4te.cache
        rm -f configure config.log config.mak.autogen config.mak.append config.status config.cache
        rm -rf $(GIT_TARNAME) .doc-tmp-dir
        rm -f $(GIT_TARNAME).tar.gz git-core_$(GIT_VERSION)-*.tar.gz
        rm -f $(htmldocs).tar.gz $(manpages).tar.gz
        rm -f gitweb/gitweb.cgi
        $(MAKE) -C Documentation/ clean
        $(MAKE) -C perl clean
        $(MAKE) -C git-gui clean
        $(MAKE) -C templates/ clean
        $(MAKE) -C t/ clean
        rm -f GIT-VERSION-FILE GIT-CFLAGS

.PHONY: all install clean strip
.PHONY: .FORCE-GIT-VERSION-FILE TAGS tags .FORCE-GIT-CFLAGS

### Check documentation
#
check-docs::
        @for v in $(ALL_PROGRAMS) $(BUILT_INS) git$X gitk; \
        do \
                case "$$v" in \
                git-merge-octopus | git-merge-ours | git-merge-recursive | \
                git-merge-resolve | git-merge-stupid | \
                git-add--interactive | git-fsck-objects | git-init-db | \
                git-repo-config | \
                git-ssh-pull | git-ssh-push ) continue ;; \
                esac ; \
                test -f "Documentation/$$v.txt" || \
                echo "no doc: $$v"; \
                sed -e '1,/^__DATA__/d' Documentation/cmd-list.perl | \
                grep -q "^$$v[  ]" || \
                case "$$v" in \
                git) ;; \
                *) echo "no link: $$v";; \
                esac ; \
        done | sort

### Make sure built-ins do not have dups and listed in git.c
#
check-builtins::
        ./check-builtins.sh