stash: Don't overwrite files that have gone from the index

diff --git a/Makefile b/Makefile
index eb0fffb379f644ad97ae15068f52acf051403d27..e57d9754e28f280cb3074094c800c97dbdb91d12 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -180,9 +180,6 @@ all::
 # If not set it defaults to the bare 'wish'. If it is set to the empty
 # string then NO_TCLTK will be forced (this is used by configure script).
 #
-# Define THREADED_DELTA_SEARCH if you have pthreads and wish to exploit
-# parallel delta searching when packing objects.
-#
 # Define INTERNAL_QSORT to use Git's implementation of qsort(), which
 # is a simplified version of the merge sort used in glibc. This is
 # recommended if Git triggers O(n^2) behavior in your platform's qsort().
@@ -320,6 +317,12 @@ SCRIPT_PYTHON =
 SCRIPT_SH =
 TEST_PROGRAMS =
 
+# Having this variable in your environment would break pipelines because
+# you cause "cd" to echo its destination to stdout.  It can also take
+# scripts to unexpected places.  If you like CDPATH, define it for your
+# interactive shell sessions without exporting it.
+unexport CDPATH
+
 SCRIPT_SH += git-am.sh
 SCRIPT_SH += git-bisect.sh
 SCRIPT_SH += git-difftool--helper.sh
@@ -699,12 +702,10 @@ 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 ($(uname_S),UnixWare)
        CC = cc
@@ -758,7 +759,6 @@ ifeq ($(uname_S),Darwin)
                NO_STRLCPY = YesPlease
        endif
        NO_MEMMEM = YesPlease
-       THREADED_DELTA_SEARCH = YesPlease
        USE_ST_TIMESPEC = YesPlease
 endif
 ifeq ($(uname_S),SunOS)
@@ -771,7 +771,6 @@ ifeq ($(uname_S),SunOS)
        NO_MKDTEMP = YesPlease
        NO_MKSTEMPS = YesPlease
        NO_REGEX = YesPlease
-       THREADED_DELTA_SEARCH = YesPlease
        ifeq ($(uname_R),5.7)
                NEEDS_RESOLV = YesPlease
                NO_IPV6 = YesPlease
@@ -827,12 +826,12 @@ ifeq ($(uname_S),FreeBSD)
        BASIC_LDFLAGS += -L/usr/local/lib
        DIR_HAS_BSD_GROUP_SEMANTICS = YesPlease
        USE_ST_TIMESPEC = YesPlease
-       THREADED_DELTA_SEARCH = YesPlease
        ifeq ($(shell expr "$(uname_R)" : '4\.'),2)
                PTHREAD_LIBS = -pthread
                NO_UINTMAX_T = YesPlease
                NO_STRTOUMAX = YesPlease
        endif
+       PYTHON_PATH = /usr/local/bin/python
 endif
 ifeq ($(uname_S),OpenBSD)
        NO_STRCASESTR = YesPlease
@@ -841,7 +840,6 @@ ifeq ($(uname_S),OpenBSD)
        NEEDS_LIBICONV = YesPlease
        BASIC_CFLAGS += -I/usr/local/include
        BASIC_LDFLAGS += -L/usr/local/lib
-       THREADED_DELTA_SEARCH = YesPlease
 endif
 ifeq ($(uname_S),NetBSD)
        ifeq ($(shell expr "$(uname_R)" : '[01]\.'),2)
@@ -849,7 +847,6 @@ ifeq ($(uname_S),NetBSD)
        endif
        BASIC_CFLAGS += -I/usr/pkg/include
        BASIC_LDFLAGS += -L/usr/pkg/lib $(CC_LD_DYNPATH)/usr/pkg/lib
-       THREADED_DELTA_SEARCH = YesPlease
        USE_ST_TIMESPEC = YesPlease
        NO_MKSTEMPS = YesPlease
 endif
@@ -864,9 +861,7 @@ ifeq ($(uname_S),AIX)
        INTERNAL_QSORT = UnfortunatelyYes
        NEEDS_LIBICONV=YesPlease
        BASIC_CFLAGS += -D_LARGE_FILES
-       ifneq ($(shell expr "$(uname_V)" : '[1234]'),1)
-               THREADED_DELTA_SEARCH = YesPlease
-       else
+       ifeq ($(shell expr "$(uname_V)" : '[1234]'),1)
                NO_PTHREADS = YesPlease
        endif
 endif
@@ -892,7 +887,7 @@ ifeq ($(uname_S),IRIX)
        SNPRINTF_RETURNS_BOGUS = YesPlease
        SHELL_PATH = /usr/gnu/bin/bash
        NEEDS_LIBGEN = YesPlease
-       THREADED_DELTA_SEARCH = YesPlease
+       NEEDS_LIBICONV = YesPlease
 endif
 ifeq ($(uname_S),IRIX64)
        NO_SETENV=YesPlease
@@ -911,7 +906,7 @@ ifeq ($(uname_S),IRIX64)
        SNPRINTF_RETURNS_BOGUS = YesPlease
        SHELL_PATH=/usr/gnu/bin/bash
        NEEDS_LIBGEN = YesPlease
-       THREADED_DELTA_SEARCH = YesPlease
+       NEEDS_LIBICONV = YesPlease
 endif
 ifeq ($(uname_S),HP-UX)
        NO_IPV6=YesPlease
@@ -961,7 +956,6 @@ ifeq ($(uname_S),Windows)
        NO_CURL = YesPlease
        NO_PYTHON = YesPlease
        BLK_SHA1 = YesPlease
-       THREADED_DELTA_SEARCH = YesPlease
 
        CC = compat/vcbuild/scripts/clink.pl
        AR = compat/vcbuild/scripts/lib.pl
@@ -1013,7 +1007,6 @@ ifneq (,$(findstring MINGW,$(uname_S)))
        NO_REGEX = YesPlease
        NO_PYTHON = YesPlease
        BLK_SHA1 = YesPlease
-       THREADED_DELTA_SEARCH = YesPlease
        COMPAT_CFLAGS += -D__USE_MINGW_ACCESS -DNOGDI -Icompat -Icompat/fnmatch -Icompat/win32
        COMPAT_CFLAGS += -DSTRIP_EXTENSION=\".exe\"
        COMPAT_OBJS += compat/mingw.o compat/fnmatch/fnmatch.o compat/winansi.o \
@@ -1216,7 +1209,6 @@ ifdef NO_MKDTEMP
 endif
 ifdef NO_MKSTEMPS
        COMPAT_CFLAGS += -DNO_MKSTEMPS
-       COMPAT_OBJS += compat/mkstemps.o
 endif
 ifdef NO_UNSETENV
        COMPAT_CFLAGS += -DNO_UNSETENV
@@ -1311,16 +1303,12 @@ ifdef RUNTIME_PREFIX
 endif
 
 ifdef NO_PTHREADS
-       THREADED_DELTA_SEARCH =
        BASIC_CFLAGS += -DNO_PTHREADS
 else
        EXTLIBS += $(PTHREAD_LIBS)
-endif
-
-ifdef THREADED_DELTA_SEARCH
-       BASIC_CFLAGS += -DTHREADED_DELTA_SEARCH
        LIB_OBJS += thread-utils.o
 endif
+
 ifdef DIR_HAS_BSD_GROUP_SEMANTICS
        COMPAT_CFLAGS += -DDIR_HAS_BSD_GROUP_SEMANTICS
 endif