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Makefile: make USE_LIBPCRE=YesPlease mean v2, not v1

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Change the USE_LIBPCRE flag from being an alias for USE_LIBPCRE1 to
being an alias for USE_LIBPCRE2.

When support for v2 was added in my 94da9193a6 ("grep: add support for
PCRE v2", 2017-06-01) the existing USE_LIBPCRE flag was left as
meaning v1, with a note that this would likely change in a future
release. That optional support for v2 first made it into Git version
2.14.0.

The PCRE v2 support has been shown to be stable, and the upstream PCRE
project is highly encouraging downstream users to move to v2, so it
makes sense to give packagers of Git who haven't heard the news about
PCRE v2 a further nudge to move to v2.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Ævar Arnfjörð Bjarmason 2018-03-11 13:26:09 +00:00 committed by Junio C Hamano
parent a363f981ec
commit e6c531b808
2 changed files with 26 additions and 26 deletions
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26
Makefile
View File

@ -29,10 +29,10 @@ all::
# Perl-compatible regular expressions instead of standard or extended
# POSIX regular expressions.
#
# Currently USE_LIBPCRE is a synonym for USE_LIBPCRE1, define
# USE_LIBPCRE2 instead if you'd like to use version 2 of the PCRE
# library. The USE_LIBPCRE flag will likely be changed to mean v2 by
# default in future releases.
# USE_LIBPCRE is a synonym for USE_LIBPCRE2, define USE_LIBPCRE1
# instead if you'd like to use the legacy version 1 of the PCRE
# library. Support for version 1 will likely be removed in some future
# release of Git, as upstream has all but abandoned it.
#
# When using USE_LIBPCRE1, define NO_LIBPCRE1_JIT if the PCRE v1
# library is compiled without --enable-jit. We will auto-detect
@ -1164,13 +1164,18 @@ ifdef NO_LIBGEN_H
COMPAT_OBJS += compat/basename.o
endif
USE_LIBPCRE1 ?= $(USE_LIBPCRE)
USE_LIBPCRE2 ?= $(USE_LIBPCRE)
ifneq (,$(USE_LIBPCRE1))
ifdef USE_LIBPCRE2
$(error Only set USE_LIBPCRE1 (or its alias USE_LIBPCRE) or USE_LIBPCRE2, not both!)
ifneq (,$(USE_LIBPCRE2))
ifdef USE_LIBPCRE1
$(error Only set USE_LIBPCRE2 (or its alias USE_LIBPCRE) or USE_LIBPCRE1, not both!)
endif
BASIC_CFLAGS += -DUSE_LIBPCRE2
EXTLIBS += -lpcre2-8
endif
ifdef USE_LIBPCRE1
BASIC_CFLAGS += -DUSE_LIBPCRE1
EXTLIBS += -lpcre
@ -1179,11 +1184,6 @@ ifdef NO_LIBPCRE1_JIT
endif
endif
ifdef USE_LIBPCRE2
BASIC_CFLAGS += -DUSE_LIBPCRE2
EXTLIBS += -lpcre2-8
endif
ifdef LIBPCREDIR
BASIC_CFLAGS += -I$(LIBPCREDIR)/include
EXTLIBS += -L$(LIBPCREDIR)/$(lib) $(CC_LD_DYNPATH)$(LIBPCREDIR)/$(lib)

26
configure.ac
View File

@ -254,25 +254,25 @@ GIT_PARSE_WITH([openssl]))
# Perl-compatible regular expressions instead of standard or extended
# POSIX regular expressions.
#
# Currently USE_LIBPCRE is a synonym for USE_LIBPCRE1, define
# USE_LIBPCRE2 instead if you'd like to use version 2 of the PCRE
# library. The USE_LIBPCRE flag will likely be changed to mean v2 by
# default in future releases.
# USE_LIBPCRE is a synonym for USE_LIBPCRE2, define USE_LIBPCRE1
# instead if you'd like to use the legacy version 1 of the PCRE
# library. Support for version 1 will likely be removed in some future
# release of Git, as upstream has all but abandoned it.
#
# Define LIBPCREDIR=/foo/bar if your PCRE header and library files are in
# /foo/bar/include and /foo/bar/lib directories.
#
AC_ARG_WITH(libpcre,
AS_HELP_STRING([--with-libpcre],[synonym for --with-libpcre1]),
AS_HELP_STRING([--with-libpcre],[synonym for --with-libpcre2]),
if test "$withval" = "no"; then
USE_LIBPCRE1=
USE_LIBPCRE2=
elif test "$withval" = "yes"; then
USE_LIBPCRE1=YesPlease
USE_LIBPCRE2=YesPlease
else
USE_LIBPCRE1=YesPlease
USE_LIBPCRE2=YesPlease
LIBPCREDIR=$withval
AC_MSG_NOTICE([Setting LIBPCREDIR to $LIBPCREDIR])
dnl USE_LIBPCRE1 can still be modified below, so don't substitute
dnl USE_LIBPCRE2 can still be modified below, so don't substitute
dnl it yet.
GIT_CONF_SUBST([LIBPCREDIR])
fi)
@ -280,10 +280,6 @@ AS_HELP_STRING([--with-libpcre],[synonym for --with-libpcre1]),
AC_ARG_WITH(libpcre1,
AS_HELP_STRING([--with-libpcre1],[support Perl-compatible regexes via libpcre1 (default is NO)])
AS_HELP_STRING([], [ARG can be also prefix for libpcre library and headers]),
if test -n "$USE_LIBPCRE1"; then
AC_MSG_ERROR([Only supply one of --with-libpcre or its synonym --with-libpcre1!])
fi
if test "$withval" = "no"; then
USE_LIBPCRE1=
elif test "$withval" = "yes"; then
@ -300,6 +296,10 @@ AS_HELP_STRING([], [ARG can be also prefix for libpcre library and hea
AC_ARG_WITH(libpcre2,
AS_HELP_STRING([--with-libpcre2],[support Perl-compatible regexes via libpcre2 (default is NO)])
AS_HELP_STRING([], [ARG can be also prefix for libpcre library and headers]),
if test -n "$USE_LIBPCRE2"; then
AC_MSG_ERROR([Only supply one of --with-libpcre or its synonym --with-libpcre2!])
fi
if test -n "$USE_LIBPCRE1"; then
AC_MSG_ERROR([Only supply one of --with-libpcre1 or --with-libpcre2!])
fi