autodetect number of CPUs by default when using threads

diff --git a/Makefile b/Makefile
index e0c03c3eecc26d995f8829429092e887df17489f..51581973ab1c75e847474948bbe444db261b0e53 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -90,6 +90,8 @@ all::
 #
 # Define NO_MMAP if you want to avoid mmap.
 #
+# Define NO_PTHREADS if you do not have or do not want to use Pthreads.
+#
 # Define NO_PREAD if you have a problem with pread() system call (e.g.
 # cygwin.dll before v1.5.22).
 #
@@ -164,6 +166,7 @@ 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')
+uname_V := $(shell sh -c 'uname -v 2>/dev/null || echo not')
 
 # CFLAGS and LDFLAGS are for the users to override from the command line.
 
@@ -229,6 +232,7 @@ INSTALL = install
 RPMBUILD = rpmbuild
 TCL_PATH = tclsh
 TCLTK_PATH = wish
+PTHREAD_LIBS = -lpthread
 
 export TCL_PATH TCLTK_PATH
 
@@ -316,6 +320,7 @@ BUILT_INS += git-merge-subtree$X
 BUILT_INS += git-peek-remote$X
 BUILT_INS += git-repo-config$X
 BUILT_INS += git-show$X
+BUILT_INS += git-stage$X
 BUILT_INS += git-status$X
 BUILT_INS += git-whatchanged$X
 
@@ -346,6 +351,7 @@ LIB_H += cache.h
 LIB_H += cache-tree.h
 LIB_H += commit.h
 LIB_H += compat/mingw.h
+LIB_H += compat/cygwin.h
 LIB_H += csum-file.h
 LIB_H += decorate.h
 LIB_H += delta.h
@@ -388,6 +394,7 @@ LIB_H += transport.h
 LIB_H += tree.h
 LIB_H += tree-walk.h
 LIB_H += unpack-trees.h
+LIB_H += userdiff.h
 LIB_H += utf8.h
 LIB_H += wt-status.h
 
@@ -434,7 +441,6 @@ LIB_OBJS += grep.o
 LIB_OBJS += hash.o
 LIB_OBJS += help.o
 LIB_OBJS += ident.o
-LIB_OBJS += interpolate.o
 LIB_OBJS += levenshtein.o
 LIB_OBJS += list-objects.o
 LIB_OBJS += ll-merge.o
@@ -484,6 +490,7 @@ LIB_OBJS += tree-diff.o
 LIB_OBJS += tree.o
 LIB_OBJS += tree-walk.o
 LIB_OBJS += unpack-trees.o
+LIB_OBJS += userdiff.o
 LIB_OBJS += usage.o
 LIB_OBJS += utf8.o
 LIB_OBJS += walker.o
@@ -492,6 +499,7 @@ LIB_OBJS += write_or_die.o
 LIB_OBJS += ws.o
 LIB_OBJS += wt-status.o
 LIB_OBJS += xdiff-interface.o
+LIB_OBJS += preload-index.o
 
 BUILTIN_OBJS += builtin-add.o
 BUILTIN_OBJS += builtin-annotate.o
@@ -637,8 +645,6 @@ ifeq ($(uname_S),Darwin)
        endif
        NO_STRLCPY = YesPlease
        NO_MEMMEM = YesPlease
-       COMPAT_CFLAGS += -Icompat/regex
-       COMPAT_OBJS += compat/regex/regex.o
 endif
 ifeq ($(uname_S),SunOS)
        NEEDS_SOCKET = YesPlease
@@ -648,8 +654,8 @@ ifeq ($(uname_S),SunOS)
        NO_MEMMEM = YesPlease
        NO_HSTRERROR = YesPlease
        NO_MKDTEMP = YesPlease
+       OLD_ICONV = UnfortunatelyYes
        ifeq ($(uname_R),5.8)
-               NEEDS_LIBICONV = YesPlease
                NO_UNSETENV = YesPlease
                NO_SETENV = YesPlease
                NO_C99_FORMAT = YesPlease
@@ -689,8 +695,11 @@ ifeq ($(uname_S),FreeBSD)
        BASIC_LDFLAGS += -L/usr/local/lib
        DIR_HAS_BSD_GROUP_SEMANTICS = YesPlease
        THREADED_DELTA_SEARCH = YesPlease
-       COMPAT_CFLAGS += -Icompat/regex
-       COMPAT_OBJS += compat/regex/regex.o
+       ifeq ($(shell expr "$(uname_R)" : '4\.'),2)
+               PTHREAD_LIBS = -pthread
+               NO_UINTMAX_T = YesPlease
+               NO_STRTOUMAX = YesPlease
+       endif
 endif
 ifeq ($(uname_S),OpenBSD)
        NO_STRCASESTR = YesPlease
@@ -717,8 +726,11 @@ ifeq ($(uname_S),AIX)
        INTERNAL_QSORT = UnfortunatelyYes
        NEEDS_LIBICONV=YesPlease
        BASIC_CFLAGS += -D_LARGE_FILES
-       COMPAT_CFLAGS += -Icompat/regex
-       COMPAT_OBJS += compat/regex/regex.o
+       ifneq ($(shell expr "$(uname_V)" : '[1234]'),1)
+               THREADED_DELTA_SEARCH = YesPlease
+       else
+               NO_PTHREADS = YesPlease
+       endif
 endif
 ifeq ($(uname_S),GNU)
        # GNU/Hurd
@@ -748,6 +760,9 @@ ifeq ($(uname_S),HP-UX)
        NO_SYS_SELECT_H = YesPlease
        SNPRINTF_RETURNS_BOGUS = YesPlease
 endif
+ifneq (,$(findstring CYGWIN,$(uname_S)))
+       COMPAT_OBJS += compat/cygwin.o
+endif
 ifneq (,$(findstring MINGW,$(uname_S)))
        NO_MMAP = YesPlease
        NO_PREAD = YesPlease
@@ -760,6 +775,7 @@ ifneq (,$(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
@@ -949,6 +965,9 @@ endif
 ifdef NO_IPV6
        BASIC_CFLAGS += -DNO_IPV6
 endif
+ifdef NO_UINTMAX_T
+       BASIC_CFLAGS += -Duintmax_t=uint32_t
+endif
 ifdef NO_SOCKADDR_STORAGE
 ifdef NO_IPV6
        BASIC_CFLAGS += -Dsockaddr_storage=sockaddr_in
@@ -1008,9 +1027,15 @@ ifdef INTERNAL_QSORT
        COMPAT_OBJS += compat/qsort.o
 endif
 
+ifdef NO_PTHREADS
+       THREADED_DELTA_SEARCH =
+       BASIC_CFLAGS += -DNO_PTHREADS
+else
+       EXTLIBS += $(PTHREAD_LIBS)
+endif
+
 ifdef THREADED_DELTA_SEARCH
        BASIC_CFLAGS += -DTHREADED_DELTA_SEARCH
-       EXTLIBS += -lpthread
        LIB_OBJS += thread-utils.o
 endif
 ifdef DIR_HAS_BSD_GROUP_SEMANTICS
@@ -1355,7 +1380,16 @@ check-sha1:: test-sha1$X
        ./test-sha1.sh
 
 check: common-cmds.h
-       for i in *.c; do sparse $(ALL_CFLAGS) $(SPARSE_FLAGS) $$i || exit; done
+       if sparse; \
+       then \
+               for i in *.c; \
+               do \
+                       sparse $(ALL_CFLAGS) $(SPARSE_FLAGS) $$i || exit; \
+               done; \
+       else \
+               echo 2>&1 "Did you mean 'make test'?"; \
+               exit 1; \
+       fi
 
 remove-dashes:
        ./fixup-builtins $(BUILT_INS) $(PROGRAMS) $(SCRIPTS)
@@ -1405,6 +1439,9 @@ endif
 install-doc:
        $(MAKE) -C Documentation install
 
+install-man:
+       $(MAKE) -C Documentation install-man
+
 install-html:
        $(MAKE) -C Documentation install-html
 
@@ -1414,6 +1451,9 @@ install-info:
 quick-install-doc:
        $(MAKE) -C Documentation quick-install
 
+quick-install-man:
+       $(MAKE) -C Documentation quick-install-man
+
 quick-install-html:
        $(MAKE) -C Documentation quick-install-html