rerere: don't segfault on failure to open rr-cache

diff --git a/Makefile b/Makefile
index ae9bb033822821624613bcc84cee2ea41c93d26d..9b94e967e6c982153792d5d9a4ac5a0c733feb49 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -153,7 +153,15 @@ all::
 #
 # Define ASCIIDOC8 if you want to format documentation with AsciiDoc 8
 #
-# Define DOCBOOK_XSL_172 if you want to format man pages with DocBook XSL v1.72.
+# Define DOCBOOK_XSL_172 if you want to format man pages with DocBook XSL v1.72
+# (not v1.73 or v1.71).
+#
+# Define ASCIIDOC_NO_ROFF if your DocBook XSL escapes raw roff directives
+# (versions 1.72 and later and 1.68.1 and earlier).
+#
+# Define GNU_ROFF if your target system uses GNU groff.  This forces
+# apostrophes to be ASCII so that cut&pasting examples to the shell
+# will work.
 #
 # Define NO_PERL_MAKEMAKER if you cannot use Makefiles generated by perl's
 # MakeMaker (e.g. using ActiveState under Cygwin).
@@ -408,6 +416,7 @@ LIB_H += builtin.h
 LIB_H += cache.h
 LIB_H += cache-tree.h
 LIB_H += commit.h
+LIB_H += compat/bswap.h
 LIB_H += compat/cygwin.h
 LIB_H += compat/mingw.h
 LIB_H += csum-file.h
@@ -734,6 +743,7 @@ ifeq ($(uname_S),SunOS)
        NO_MKSTEMPS = YesPlease
        NO_REGEX = YesPlease
        NO_EXTERNAL_GREP = YesPlease
+       THREADED_DELTA_SEARCH = YesPlease
        ifeq ($(uname_R),5.7)
                NEEDS_RESOLV = YesPlease
                NO_IPV6 = YesPlease
@@ -771,12 +781,15 @@ ifeq ($(uname_O),Cygwin)
        NO_FAST_WORKING_DIRECTORY = UnfortunatelyYes
        NO_TRUSTABLE_FILEMODE = UnfortunatelyYes
        OLD_ICONV = UnfortunatelyYes
+       NO_ST_BLOCKS_IN_STRUCT_STAT = YesPlease
        # There are conflicting reports about this.
        # On some boxes NO_MMAP is needed, and not so elsewhere.
        # Try commenting this out if you suspect MMAP is more efficient
        NO_MMAP = YesPlease
        NO_IPV6 = YesPlease
        X = .exe
+       COMPAT_OBJS += compat/cygwin.o
+       UNRELIABLE_FSTAT = UnfortunatelyYes
 endif
 ifeq ($(uname_S),FreeBSD)
        NEEDS_LIBICONV = YesPlease
@@ -840,11 +853,18 @@ ifeq ($(uname_S),IRIX)
        NO_MEMMEM = YesPlease
        NO_MKSTEMPS = YesPlease
        NO_MKDTEMP = YesPlease
+       # When compiled with the MIPSpro 7.4.4m compiler, and without pthreads
+       # (i.e. NO_PTHREADS is set), and _with_ MMAP (i.e. NO_MMAP is not set),
+       # git dies with a segmentation fault when trying to access the first
+       # entry of a reflog.  The conservative choice is made to always set
+       # NO_MMAP.  If you suspect that your compiler is not affected by this
+       # issue, comment out the NO_MMAP statement.
        NO_MMAP = YesPlease
        NO_EXTERNAL_GREP = UnfortunatelyYes
        SNPRINTF_RETURNS_BOGUS = YesPlease
        SHELL_PATH = /usr/gnu/bin/bash
        NEEDS_LIBGEN = YesPlease
+       THREADED_DELTA_SEARCH = YesPlease
 endif
 ifeq ($(uname_S),IRIX64)
        NO_SETENV=YesPlease
@@ -853,11 +873,18 @@ ifeq ($(uname_S),IRIX64)
        NO_MEMMEM = YesPlease
        NO_MKSTEMPS = YesPlease
        NO_MKDTEMP = YesPlease
+       # When compiled with the MIPSpro 7.4.4m compiler, and without pthreads
+       # (i.e. NO_PTHREADS is set), and _with_ MMAP (i.e. NO_MMAP is not set),
+       # git dies with a segmentation fault when trying to access the first
+       # entry of a reflog.  The conservative choice is made to always set
+       # NO_MMAP.  If you suspect that your compiler is not affected by this
+       # issue, comment out the NO_MMAP statement.
        NO_MMAP = YesPlease
        NO_EXTERNAL_GREP = UnfortunatelyYes
        SNPRINTF_RETURNS_BOGUS = YesPlease
        SHELL_PATH=/usr/gnu/bin/bash
        NEEDS_LIBGEN = YesPlease
+       THREADED_DELTA_SEARCH = YesPlease
 endif
 ifeq ($(uname_S),HP-UX)
        NO_IPV6=YesPlease
@@ -872,10 +899,6 @@ ifeq ($(uname_S),HP-UX)
        NO_SYS_SELECT_H = YesPlease
        SNPRINTF_RETURNS_BOGUS = YesPlease
 endif
-ifneq (,$(findstring CYGWIN,$(uname_S)))
-       COMPAT_OBJS += compat/cygwin.o
-       UNRELIABLE_FSTAT = UnfortunatelyYes
-endif
 ifdef MSVC
        GIT_VERSION := $(GIT_VERSION).MSVC
        pathsep = ;
@@ -1356,7 +1379,7 @@ SHELL = $(SHELL_PATH)
 
 all:: shell_compatibility_test $(ALL_PROGRAMS) $(BUILT_INS) $(OTHER_PROGRAMS) GIT-BUILD-OPTIONS
 ifneq (,$X)
-       $(QUIET_BUILT_IN)$(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 -d '$p' -o '$p' -ef '$p$X' || $(RM) '$p';)
 endif
 
 all::
@@ -1607,6 +1630,7 @@ GIT-CFLAGS: .FORCE-GIT-CFLAGS
 # and the first level quoting from the shell that runs "echo".
 GIT-BUILD-OPTIONS: .FORCE-GIT-BUILD-OPTIONS
        @echo SHELL_PATH=\''$(subst ','\'',$(SHELL_PATH_SQ))'\' >$@
+       @echo PERL_PATH=\''$(subst ','\'',$(PERL_PATH_SQ))'\' >>$@
        @echo TAR=\''$(subst ','\'',$(subst ','\'',$(TAR)))'\' >>$@
        @echo NO_CURL=\''$(subst ','\'',$(subst ','\'',$(NO_CURL)))'\' >>$@
        @echo NO_PERL=\''$(subst ','\'',$(subst ','\'',$(NO_PERL)))'\' >>$@
@@ -1780,7 +1804,10 @@ dist: git.spec git-archive$(X) configure
        gzip -f -9 $(GIT_TARNAME).tar
 
 rpm: dist
-       $(RPMBUILD) -ta $(GIT_TARNAME).tar.gz
+       $(RPMBUILD) \
+               --define "_source_filedigest_algorithm md5" \
+               --define "_binary_filedigest_algorithm md5" \
+               -ta $(GIT_TARNAME).tar.gz
 
 htmldocs = git-htmldocs-$(GIT_VERSION)
 manpages = git-manpages-$(GIT_VERSION)
@@ -1808,7 +1835,7 @@ distclean: clean
        $(RM) configure
 
 clean:
-       $(RM) *.o mozilla-sha1/*.o arm/*.o ppc/*.o compat/*.o compat/*/*.o xdiff/*.o \
+       $(RM) *.o block-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)