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Merge branch 'ab/pcre-v2'

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Git can be built to use either v1 or v2 of the PCRE library, and so
far, the build-time configuration USE_LIBPCRE=YesPlease instructed
the build procedure to use v1, but now it means v2.  USE_LIBPCRE1
and USE_LIBPCRE2 can be used to explicitly choose which version to
use, as before.

* ab/pcre-v2:
  Makefile: make USE_LIBPCRE=YesPlease mean v2, not v1
  configure: detect redundant --with-libpcre & --with-libpcre1
  configure: fix a regression in PCRE v1 detection
This commit is contained in:
Junio C Hamano 2018-04-10 08:25:43 +09:00
commit cac5351363
2 changed files with 28 additions and 24 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
@ -1170,13 +1170,18 @@ 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
$(error Only set USE_LIBPCRE2 (or its alias USE_LIBPCRE) or USE_LIBPCRE1, not both!)
endif
BASIC_CFLAGS += -DUSE_LIBPCRE2
EXTLIBS += -lpcre2-8
endif
ifdef USE_LIBPCRE1
BASIC_CFLAGS += -DUSE_LIBPCRE1
EXTLIBS += -lpcre
@ -1185,11 +1190,6 @@ ifdef NO_LIBPCRE1_JIT
endif
endif
ifdef USE_LIBPCRE2
BASIC_CFLAGS += -DUSE_LIBPCRE2
EXTLIBS += -lpcre2-8
endif
ifdef LIBPCREDIR
BASIC_CFLAGS += -I$(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 $LIBPCREDIR])
dnl USE_LIBPCRE1 can still be modified below, so don't substitute
dnl USE_LIBPCRE2 can still be modified below, so don't substitute
dnl it yet.
GIT_CONF_SUBST([LIBPCREDIR])
fi)
@ -296,6 +296,10 @@ AS_HELP_STRING([], [ARG can be also prefix for libpcre library and hea
AC_ARG_WITH(libpcre2,
AS_HELP_STRING([--with-libpcre2],[support Perl-compatible regexes via libpcre2 (default is NO)])
AS_HELP_STRING([], [ARG can be also prefix for libpcre library and headers]),
if test -n "$USE_LIBPCRE2"; then
AC_MSG_ERROR([Only supply one of --with-libpcre or its synonym --with-libpcre2!])
fi
if test -n "$USE_LIBPCRE1"; then
AC_MSG_ERROR([Only supply one of --with-libpcre1 or --with-libpcre2!])
fi
@ -549,8 +553,8 @@ if test -n "$USE_LIBPCRE1"; then
GIT_STASH_FLAGS($LIBPCREDIR)
AC_CHECK_LIB([pcre], [pcre_version],
[USE_LIBPCRE=YesPlease],
[USE_LIBPCRE=])
[USE_LIBPCRE1=YesPlease],
[USE_LIBPCRE1=])
GIT_UNSTASH_FLAGS($LIBPCREDIR)