t6035-merge-dir-to-symlink depends on SYMLINKS prerequisite
[gitweb.git] / Makefile
index 7c8763710c12350589e9a39815c8ad34a5054c37..daf4296706c4c9c524b6ec4434cadcf95881ea25 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -3,6 +3,11 @@ all::
 
 # Define V=1 to have a more verbose compile.
 #
+# Define SHELL_PATH to a POSIX shell if your /bin/sh is broken.
+#
+# Define SANE_TOOL_PATH to a colon-separated list of paths to prepend
+# to PATH if your tools in /usr/bin are broken.
+#
 # Define SNPRINTF_RETURNS_BOGUS if your are on a system which snprintf()
 # or vsnprintf() return -1 instead of number of characters which would
 # have been written to the final string if enough space had been available.
@@ -52,6 +57,12 @@ all::
 #
 # Define NO_MKDTEMP if you don't have mkdtemp in the C library.
 #
+# Define NO_MKSTEMPS if you don't have mkstemps in the C library.
+#
+# Define NO_LIBGEN_H if you don't have libgen.h.
+#
+# Define NEEDS_LIBGEN if your libgen needs -lgen when linking
+#
 # Define NO_SYS_SELECT_H if you don't have sys/select.h.
 #
 # Define NO_SYMLINK_HEAD if you never want .git/HEAD to be a symbolic link.
@@ -91,6 +102,10 @@ all::
 # Define NEEDS_SOCKET if linking with libc is not enough (SunOS,
 # Patrick Mauritz).
 #
+# Define NEEDS_RESOLV if linking with -lnsl and/or -lsocket is not enough.
+# Notably on Solaris hstrerror resides in libresolv and on Solaris 7
+# inet_ntop and inet_pton additionally reside there.
+#
 # Define NO_MMAP if you want to avoid mmap.
 #
 # Define NO_PTHREADS if you do not have or do not want to use Pthreads.
@@ -167,6 +182,22 @@ all::
 # Define NO_EXTERNAL_GREP if you don't want "git grep" to ever call
 # your external grep (e.g., if your system lacks grep, if its grep is
 # broken, or spawning external process is slower than built-in grep git has).
+#
+# Define UNRELIABLE_FSTAT if your system's fstat does not return the same
+# information on a not yet closed file that lstat would return for the same
+# file after it was closed.
+#
+# Define OBJECT_CREATION_USES_RENAMES if your operating systems has problems
+# when hardlinking a file to another name and unlinking the original file right
+# away (some NTFS drivers seem to zero the contents in that scenario).
+#
+# Define NO_CROSS_DIRECTORY_HARDLINKS if you plan to distribute the installed
+# programs as a tar, where bin/ and libexec/ might be on different file systems.
+#
+# Define USE_NED_ALLOCATOR if you want to replace the platforms default
+# memory allocators with the nedmalloc allocator written by Niall Douglas.
+#
+# Define NO_REGEX if you have no or inferior regex support in your C library.
 
 GIT-VERSION-FILE: .FORCE-GIT-VERSION-FILE
        @$(SHELL_PATH) ./GIT-VERSION-GEN
@@ -217,6 +248,7 @@ ETC_GITCONFIG = etc/gitconfig
 endif
 lib = lib
 # DESTDIR=
+pathsep = :
 
 # default configuration for gitweb
 GITWEB_CONFIG = gitweb_config.perl
@@ -279,12 +311,14 @@ TEST_PROGRAMS =
 
 SCRIPT_SH += git-am.sh
 SCRIPT_SH += git-bisect.sh
+SCRIPT_SH += git-difftool--helper.sh
 SCRIPT_SH += git-filter-branch.sh
 SCRIPT_SH += git-lost-found.sh
 SCRIPT_SH += git-merge-octopus.sh
 SCRIPT_SH += git-merge-one-file.sh
 SCRIPT_SH += git-merge-resolve.sh
 SCRIPT_SH += git-mergetool.sh
+SCRIPT_SH += git-mergetool--lib.sh
 SCRIPT_SH += git-parse-remote.sh
 SCRIPT_SH += git-pull.sh
 SCRIPT_SH += git-quiltimport.sh
@@ -298,6 +332,7 @@ SCRIPT_SH += git-submodule.sh
 SCRIPT_SH += git-web--browse.sh
 
 SCRIPT_PERL += git-add--interactive.perl
+SCRIPT_PERL += git-difftool.perl
 SCRIPT_PERL += git-archimport.perl
 SCRIPT_PERL += git-cvsexportcommit.perl
 SCRIPT_PERL += git-cvsimport.perl
@@ -316,16 +351,13 @@ EXTRA_PROGRAMS =
 # ... and all the rest that could be moved out of bindir to gitexecdir
 PROGRAMS += $(EXTRA_PROGRAMS)
 PROGRAMS += git-fast-import$X
-PROGRAMS += git-fetch-pack$X
 PROGRAMS += git-hash-object$X
 PROGRAMS += git-index-pack$X
 PROGRAMS += git-merge-index$X
 PROGRAMS += git-merge-tree$X
 PROGRAMS += git-mktag$X
-PROGRAMS += git-mktree$X
 PROGRAMS += git-pack-redundant$X
 PROGRAMS += git-patch-id$X
-PROGRAMS += git-send-pack$X
 PROGRAMS += git-shell$X
 PROGRAMS += git-show-index$X
 PROGRAMS += git-unpack-file$X
@@ -356,9 +388,6 @@ ALL_PROGRAMS = $(PROGRAMS) $(SCRIPTS)
 
 # what 'all' will build but not install in gitexecdir
 OTHER_PROGRAMS = git$X
-ifndef NO_PERL
-OTHER_PROGRAMS += gitweb/gitweb.cgi
-endif
 
 # Set paths to tools early so that they can be used for version tests.
 ifndef SHELL_PATH
@@ -580,6 +609,7 @@ BUILTIN_OBJS += builtin-merge-base.o
 BUILTIN_OBJS += builtin-merge-file.o
 BUILTIN_OBJS += builtin-merge-ours.o
 BUILTIN_OBJS += builtin-merge-recursive.o
+BUILTIN_OBJS += builtin-mktree.o
 BUILTIN_OBJS += builtin-mv.o
 BUILTIN_OBJS += builtin-name-rev.o
 BUILTIN_OBJS += builtin-pack-objects.o
@@ -626,10 +656,12 @@ EXTLIBS =
 
 ifeq ($(uname_S),Linux)
        NO_STRLCPY = YesPlease
+       NO_MKSTEMPS = YesPlease
        THREADED_DELTA_SEARCH = YesPlease
 endif
 ifeq ($(uname_S),GNU/kFreeBSD)
        NO_STRLCPY = YesPlease
+       NO_MKSTEMPS = YesPlease
        THREADED_DELTA_SEARCH = YesPlease
 endif
 ifeq ($(uname_S),UnixWare)
@@ -641,6 +673,7 @@ ifeq ($(uname_S),UnixWare)
        SHELL_PATH = /usr/local/bin/bash
        NO_IPV6 = YesPlease
        NO_HSTRERROR = YesPlease
+       NO_MKSTEMPS = YesPlease
        BASIC_CFLAGS += -Kthread
        BASIC_CFLAGS += -I/usr/local/include
        BASIC_LDFLAGS += -L/usr/local/lib
@@ -664,6 +697,7 @@ ifeq ($(uname_S),SCO_SV)
        SHELL_PATH = /usr/bin/bash
        NO_IPV6 = YesPlease
        NO_HSTRERROR = YesPlease
+       NO_MKSTEMPS = YesPlease
        BASIC_CFLAGS += -I/usr/local/include
        BASIC_LDFLAGS += -L/usr/local/lib
        NO_STRCASESTR = YesPlease
@@ -688,11 +722,23 @@ ifeq ($(uname_S),SunOS)
        NEEDS_SOCKET = YesPlease
        NEEDS_NSL = YesPlease
        SHELL_PATH = /bin/bash
+       SANE_TOOL_PATH = /usr/xpg6/bin:/usr/xpg4/bin
        NO_STRCASESTR = YesPlease
        NO_MEMMEM = YesPlease
-       NO_HSTRERROR = YesPlease
        NO_MKDTEMP = YesPlease
-       OLD_ICONV = UnfortunatelyYes
+       NO_MKSTEMPS = YesPlease
+       NO_REGEX = YesPlease
+       NO_EXTERNAL_GREP = YesPlease
+       ifeq ($(uname_R),5.7)
+               NEEDS_RESOLV = YesPlease
+               NO_IPV6 = YesPlease
+               NO_SOCKADDR_STORAGE = YesPlease
+               NO_UNSETENV = YesPlease
+               NO_SETENV = YesPlease
+               NO_STRLCPY = YesPlease
+               NO_C99_FORMAT = YesPlease
+               NO_STRTOUMAX = YesPlease
+       endif
        ifeq ($(uname_R),5.8)
                NO_UNSETENV = YesPlease
                NO_SETENV = YesPlease
@@ -705,15 +751,19 @@ ifeq ($(uname_S),SunOS)
                NO_C99_FORMAT = YesPlease
                NO_STRTOUMAX = YesPlease
        endif
-       INSTALL = ginstall
+       ifdef NO_IPV6
+               NEEDS_RESOLV = YesPlease
+       endif
+       INSTALL = /usr/ucb/install
        TAR = gtar
-       BASIC_CFLAGS += -D__EXTENSIONS__
+       BASIC_CFLAGS += -D__EXTENSIONS__ -D__sun__ -DHAVE_ALLOCA_H
 endif
 ifeq ($(uname_O),Cygwin)
        NO_D_TYPE_IN_DIRENT = YesPlease
        NO_D_INO_IN_DIRENT = YesPlease
        NO_STRCASESTR = YesPlease
        NO_MEMMEM = YesPlease
+       NO_MKSTEMPS = YesPlease
        NO_SYMLINK_HEAD = YesPlease
        NEEDS_LIBICONV = YesPlease
        NO_FAST_WORKING_DIRECTORY = UnfortunatelyYes
@@ -743,6 +793,7 @@ endif
 ifeq ($(uname_S),OpenBSD)
        NO_STRCASESTR = YesPlease
        NO_MEMMEM = YesPlease
+       USE_ST_TIMESPEC = YesPlease
        NEEDS_LIBICONV = YesPlease
        BASIC_CFLAGS += -I/usr/local/include
        BASIC_LDFLAGS += -L/usr/local/lib
@@ -755,11 +806,14 @@ ifeq ($(uname_S),NetBSD)
        BASIC_CFLAGS += -I/usr/pkg/include
        BASIC_LDFLAGS += -L/usr/pkg/lib $(CC_LD_DYNPATH)/usr/pkg/lib
        THREADED_DELTA_SEARCH = YesPlease
+       USE_ST_TIMESPEC = YesPlease
+       NO_MKSTEMPS = YesPlease
 endif
 ifeq ($(uname_S),AIX)
        NO_STRCASESTR=YesPlease
        NO_MEMMEM = YesPlease
        NO_MKDTEMP = YesPlease
+       NO_MKSTEMPS = YesPlease
        NO_STRLCPY = YesPlease
        NO_NSEC = YesPlease
        FREAD_READS_DIRECTORIES = UnfortunatelyYes
@@ -775,24 +829,40 @@ endif
 ifeq ($(uname_S),GNU)
        # GNU/Hurd
        NO_STRLCPY=YesPlease
+       NO_MKSTEMPS = YesPlease
+endif
+ifeq ($(uname_S),IRIX)
+       NO_SETENV = YesPlease
+       NO_UNSETENV = YesPlease
+       NO_STRCASESTR = YesPlease
+       NO_MEMMEM = YesPlease
+       NO_MKSTEMPS = YesPlease
+       NO_MKDTEMP = YesPlease
+       NO_MMAP = YesPlease
+       NO_EXTERNAL_GREP = UnfortunatelyYes
+       SNPRINTF_RETURNS_BOGUS = YesPlease
+       SHELL_PATH = /usr/gnu/bin/bash
+       NEEDS_LIBGEN = YesPlease
 endif
 ifeq ($(uname_S),IRIX64)
-       NO_IPV6=YesPlease
        NO_SETENV=YesPlease
+       NO_UNSETENV = YesPlease
        NO_STRCASESTR=YesPlease
        NO_MEMMEM = YesPlease
-       NO_STRLCPY = YesPlease
-       NO_SOCKADDR_STORAGE=YesPlease
+       NO_MKSTEMPS = YesPlease
+       NO_MKDTEMP = YesPlease
+       NO_MMAP = YesPlease
+       NO_EXTERNAL_GREP = UnfortunatelyYes
+       SNPRINTF_RETURNS_BOGUS = YesPlease
        SHELL_PATH=/usr/gnu/bin/bash
-       BASIC_CFLAGS += -DPATH_MAX=1024
-       # for now, build 32-bit version
-       BASIC_LDFLAGS += -L/usr/lib32
+       NEEDS_LIBGEN = YesPlease
 endif
 ifeq ($(uname_S),HP-UX)
        NO_IPV6=YesPlease
        NO_SETENV=YesPlease
        NO_STRCASESTR=YesPlease
        NO_MEMMEM = YesPlease
+       NO_MKSTEMPS = YesPlease
        NO_STRLCPY = YesPlease
        NO_MKDTEMP = YesPlease
        NO_UNSETENV = YesPlease
@@ -802,11 +872,13 @@ ifeq ($(uname_S),HP-UX)
 endif
 ifneq (,$(findstring CYGWIN,$(uname_S)))
        COMPAT_OBJS += compat/cygwin.o
+       UNRELIABLE_FSTAT = UnfortunatelyYes
 endif
 ifneq (,$(findstring MINGW,$(uname_S)))
+       pathsep = ;
        NO_PREAD = YesPlease
        NO_OPENSSL = YesPlease
-       NO_CURL = YesPlease
+       NO_LIBGEN_H = YesPlease
        NO_SYMLINK_HEAD = YesPlease
        NO_IPV6 = YesPlease
        NO_SETENV = YesPlease
@@ -814,12 +886,12 @@ ifneq (,$(findstring MINGW,$(uname_S)))
        NO_STRCASESTR = YesPlease
        NO_STRLCPY = YesPlease
        NO_MEMMEM = YesPlease
-       NO_PTHREADS = YesPlease
        NEEDS_LIBICONV = YesPlease
        OLD_ICONV = YesPlease
        NO_C99_FORMAT = YesPlease
        NO_STRTOUMAX = YesPlease
        NO_MKDTEMP = YesPlease
+       NO_MKSTEMPS = YesPlease
        SNPRINTF_RETURNS_BOGUS = YesPlease
        NO_SVN_TESTS = YesPlease
        NO_PERL_MAKEMAKER = YesPlease
@@ -828,20 +900,44 @@ ifneq (,$(findstring MINGW,$(uname_S)))
        NO_ST_BLOCKS_IN_STRUCT_STAT = YesPlease
        NO_NSEC = YesPlease
        USE_WIN32_MMAP = YesPlease
-       COMPAT_CFLAGS += -D__USE_MINGW_ACCESS -DNOGDI -Icompat -Icompat/regex -Icompat/fnmatch
-       COMPAT_CFLAGS += -DSNPRINTF_SIZE_CORR=1
+       USE_NED_ALLOCATOR = YesPlease
+       UNRELIABLE_FSTAT = UnfortunatelyYes
+       OBJECT_CREATION_USES_RENAMES = UnfortunatelyNeedsTo
+       NO_REGEX = YesPlease
+       COMPAT_CFLAGS += -D__USE_MINGW_ACCESS -DNOGDI -Icompat -Icompat/fnmatch
        COMPAT_CFLAGS += -DSTRIP_EXTENSION=\".exe\"
-       COMPAT_OBJS += compat/mingw.o compat/fnmatch/fnmatch.o compat/regex/regex.o compat/winansi.o
+       COMPAT_OBJS += compat/mingw.o compat/fnmatch/fnmatch.o compat/winansi.o
        EXTLIBS += -lws2_32
        X = .exe
+ifneq (,$(wildcard ../THIS_IS_MSYSGIT))
+       htmldir=doc/git/html/
+       prefix =
+       INSTALL = /bin/install
+       EXTLIBS += /mingw/lib/libz.a
+       NO_R_TO_GCC_LINKER = YesPlease
+       INTERNAL_QSORT = YesPlease
+       THREADED_DELTA_SEARCH = YesPlease
+else
+       NO_CURL = YesPlease
+       NO_PTHREADS = YesPlease
+endif
 endif
 ifneq (,$(findstring arm,$(uname_M)))
        ARM_SHA1 = YesPlease
+       NO_MKSTEMPS = YesPlease
 endif
 
 -include config.mak.autogen
 -include config.mak
 
+ifdef SANE_TOOL_PATH
+SANE_TOOL_PATH_SQ = $(subst ','\'',$(SANE_TOOL_PATH))
+BROKEN_PATH_FIX = 's|^\# @@BROKEN_PATH_FIX@@$$|git_broken_path_fix $(SANE_TOOL_PATH_SQ)|'
+PATH := $(SANE_TOOL_PATH):${PATH}
+else
+BROKEN_PATH_FIX = '/^\# @@BROKEN_PATH_FIX@@$$/d'
+endif
+
 ifeq ($(uname_S),Darwin)
        ifndef NO_FINK
                ifeq ($(shell test -d /sw/lib && echo y),y)
@@ -868,6 +964,11 @@ ifndef CC_LD_DYNPATH
        endif
 endif
 
+ifdef NO_LIBGEN_H
+       COMPAT_CFLAGS += -DNO_LIBGEN_H
+       COMPAT_OBJS += compat/basename.o
+endif
+
 ifdef NO_CURL
        BASIC_CFLAGS += -DNO_CURL
 else
@@ -934,12 +1035,18 @@ ifdef NEEDS_LIBICONV
        endif
        EXTLIBS += $(ICONV_LINK) -liconv
 endif
+ifdef NEEDS_LIBGEN
+       EXTLIBS += -lgen
+endif
 ifdef NEEDS_SOCKET
        EXTLIBS += -lsocket
 endif
 ifdef NEEDS_NSL
        EXTLIBS += -lnsl
 endif
+ifdef NEEDS_RESOLV
+       EXTLIBS += -lresolv
+endif
 ifdef NO_D_TYPE_IN_DIRENT
        BASIC_CFLAGS += -DNO_D_TYPE_IN_DIRENT
 endif
@@ -995,6 +1102,10 @@ ifdef NO_MKDTEMP
        COMPAT_CFLAGS += -DNO_MKDTEMP
        COMPAT_OBJS += compat/mkdtemp.o
 endif
+ifdef NO_MKSTEMPS
+       COMPAT_CFLAGS += -DNO_MKSTEMPS
+       COMPAT_OBJS += compat/mkstemps.o
+endif
 ifdef NO_UNSETENV
        COMPAT_CFLAGS += -DNO_UNSETENV
        COMPAT_OBJS += compat/unsetenv.o
@@ -1011,6 +1122,9 @@ else
                COMPAT_OBJS += compat/win32mmap.o
        endif
 endif
+ifdef OBJECT_CREATION_USES_RENAMES
+       COMPAT_CFLAGS += -DOBJECT_CREATION_MODE=1
+endif
 ifdef NO_PREAD
        COMPAT_CFLAGS += -DNO_PREAD
        COMPAT_OBJS += compat/pread.o
@@ -1106,6 +1220,18 @@ endif
 ifdef NO_EXTERNAL_GREP
        BASIC_CFLAGS += -DNO_EXTERNAL_GREP
 endif
+ifdef UNRELIABLE_FSTAT
+       BASIC_CFLAGS += -DUNRELIABLE_FSTAT
+endif
+ifdef NO_REGEX
+       COMPAT_CFLAGS += -Icompat/regex
+       COMPAT_OBJS += compat/regex/regex.o
+endif
+
+ifdef USE_NED_ALLOCATOR
+       COMPAT_CFLAGS += -DUSE_NED_ALLOCATOR -DOVERRIDE_STRDUP -DNDEBUG -DREPLACE_SYSTEM_ALLOCATOR -Icompat/nedmalloc
+       COMPAT_OBJS += compat/nedmalloc/nedmalloc.o
+endif
 
 ifeq ($(TCLTK_PATH),)
 NO_TCLTK=NoThanks
@@ -1181,7 +1307,7 @@ SHELL = $(SHELL_PATH)
 
 all:: shell_compatibility_test $(ALL_PROGRAMS) $(BUILT_INS) $(OTHER_PROGRAMS) GIT-BUILD-OPTIONS
 ifneq (,$X)
-       $(foreach p,$(patsubst %$X,%,$(filter %$X,$(ALL_PROGRAMS) $(BUILT_INS) git$X)), test '$p' -ef '$p$X' || $(RM) '$p';)
+       $(QUIET_BUILT_IN)$(foreach p,$(patsubst %$X,%,$(filter %$X,$(ALL_PROGRAMS) $(BUILT_INS) git$X)), test '$p' -ef '$p$X' || $(RM) '$p';)
 endif
 
 all::
@@ -1232,9 +1358,9 @@ $(patsubst %.sh,%,$(SCRIPT_SH)) : % : %.sh
        $(QUIET_GEN)$(RM) $@ $@+ && \
        sed -e '1s|#!.*/sh|#!$(SHELL_PATH_SQ)|' \
            -e 's|@SHELL_PATH@|$(SHELL_PATH_SQ)|' \
-           -e 's|@@PERL@@|$(PERL_PATH_SQ)|g' \
            -e 's/@@GIT_VERSION@@/$(GIT_VERSION)/g' \
            -e 's/@@NO_CURL@@/$(NO_CURL)/g' \
+           -e $(BROKEN_PATH_FIX) \
            $@.sh >$@+ && \
        chmod +x $@+ && \
        mv $@+ $@
@@ -1251,7 +1377,7 @@ $(patsubst %.perl,%,$(SCRIPT_PERL)): % : %.perl
        sed -e '1{' \
            -e '        s|#!.*perl|#!$(PERL_PATH_SQ)|' \
            -e '        h' \
-           -e '        s=.*=use lib (split(/:/, $$ENV{GITPERLLIB} || "@@INSTLIBDIR@@"));=' \
+           -e '        s=.*=use lib (split(/$(pathsep)/, $$ENV{GITPERLLIB} || "@@INSTLIBDIR@@"));=' \
            -e '        H' \
            -e '        x' \
            -e '}' \
@@ -1261,6 +1387,7 @@ $(patsubst %.perl,%,$(SCRIPT_PERL)): % : %.perl
        chmod +x $@+ && \
        mv $@+ $@
 
+OTHER_PROGRAMS += gitweb/gitweb.cgi
 gitweb/gitweb.cgi: gitweb/gitweb.perl
        $(QUIET_GEN)$(RM) $@ $@+ && \
        sed -e '1s|#!.*perl|#!$(PERL_PATH_SQ)|' \
@@ -1364,7 +1491,7 @@ git-http-push$X: revision.o http.o http-push.o $(GITLIBS)
                $(LIBS) $(CURL_LIBCURL) $(EXPAT_LIBEXPAT)
 
 $(LIB_OBJS) $(BUILTIN_OBJS): $(LIB_H)
-$(patsubst git-%$X,%.o,$(PROGRAMS)): $(LIB_H) $(wildcard */*.h)
+$(patsubst git-%$X,%.o,$(PROGRAMS)) git.o: $(LIB_H) $(wildcard */*.h)
 builtin-revert.o wt-status.o: wt-status.h
 
 $(LIB_FILE): $(LIB_OBJS)
@@ -1473,6 +1600,8 @@ test-delta$X: diff-delta.o patch-delta.o
 
 test-parse-options$X: parse-options.o
 
+test-parse-options.o: parse-options.h
+
 .PRECIOUS: $(patsubst test-%$X,test-%.o,$(TEST_PROGRAMS))
 
 test-%$X: test-%.o $(GITLIBS)
@@ -1519,25 +1648,29 @@ install: all
        $(INSTALL) $(ALL_PROGRAMS) '$(DESTDIR_SQ)$(gitexec_instdir_SQ)'
        $(INSTALL) git$X git-upload-pack$X git-receive-pack$X git-upload-archive$X git-shell$X git-cvsserver '$(DESTDIR_SQ)$(bindir_SQ)'
        $(MAKE) -C templates DESTDIR='$(DESTDIR_SQ)' install
+ifndef NO_PERL
        $(MAKE) -C perl prefix='$(prefix_SQ)' DESTDIR='$(DESTDIR_SQ)' install
+endif
 ifndef NO_TCLTK
        $(MAKE) -C gitk-git install
        $(MAKE) -C git-gui gitexecdir='$(gitexec_instdir_SQ)' install
 endif
 ifneq (,$X)
-       $(foreach p,$(patsubst %$X,%,$(filter %$X,$(ALL_PROGRAMS) $(BUILT_INS) git$X)), $(RM) '$(DESTDIR_SQ)$(gitexec_instdir_SQ)/$p';)
+       $(foreach p,$(patsubst %$X,%,$(filter %$X,$(ALL_PROGRAMS) $(BUILT_INS) git$X)), test '$(DESTDIR_SQ)$(gitexec_instdir_SQ)/$p' -ef '$(DESTDIR_SQ)$(gitexec_instdir_SQ)/$p$X' || $(RM) '$(DESTDIR_SQ)$(gitexec_instdir_SQ)/$p';)
 endif
        bindir=$$(cd '$(DESTDIR_SQ)$(bindir_SQ)' && pwd) && \
        execdir=$$(cd '$(DESTDIR_SQ)$(gitexec_instdir_SQ)' && pwd) && \
-       { $(RM) "$$execdir/git-add$X" && \
-               ln "$$bindir/git$X" "$$execdir/git-add$X" 2>/dev/null || \
-               cp "$$bindir/git$X" "$$execdir/git-add$X"; } && \
-       { for p in $(filter-out git-add$X,$(BUILT_INS)); do \
+       { test "$$bindir/" = "$$execdir/" || \
+               { $(RM) "$$execdir/git$X" && \
+               test -z "$(NO_CROSS_DIRECTORY_HARDLINKS)" && \
+               ln "$$bindir/git$X" "$$execdir/git$X" 2>/dev/null || \
+               cp "$$bindir/git$X" "$$execdir/git$X"; } ; } && \
+       { for p in $(BUILT_INS); do \
                $(RM) "$$execdir/$$p" && \
-               ln "$$execdir/git-add$X" "$$execdir/$$p" 2>/dev/null || \
-               ln -s "git-add$X" "$$execdir/$$p" 2>/dev/null || \
-               cp "$$execdir/git-add$X" "$$execdir/$$p" || exit; \
-         done } && \
+               ln "$$execdir/git$X" "$$execdir/$$p" 2>/dev/null || \
+               ln -s "git$X" "$$execdir/$$p" 2>/dev/null || \
+               cp "$$execdir/git$X" "$$execdir/$$p" || exit; \
+         done; } && \
        ./check_bindir "z$$bindir" "z$$execdir" "$$bindir/git-add$X"
 
 install-doc:
@@ -1617,7 +1750,7 @@ distclean: clean
        $(RM) configure
 
 clean:
-       $(RM) *.o mozilla-sha1/*.o arm/*.o ppc/*.o compat/*.o xdiff/*.o \
+       $(RM) *.o mozilla-sha1/*.o arm/*.o ppc/*.o compat/*.o compat/*/*.o xdiff/*.o \
                $(LIB_FILE) $(XDIFF_LIB)
        $(RM) $(ALL_PROGRAMS) $(BUILT_INS) git$X
        $(RM) $(TEST_PROGRAMS)