Sync with maint

diff --git a/Makefile b/Makefile
index edd78419ff85e08b2e3f0e7c2b45654f631a9116..e40ac0c7f5ec2f304b88d92f47ff94272f5ce2a4 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -24,6 +24,12 @@ all::
 # Define NO_OPENSSL environment variable if you do not have OpenSSL.
 # This also implies BLK_SHA1.
 #
+# Define USE_LIBPCRE if you have and want to use libpcre. git-grep will be
+# able to use Perl-compatible regular expressions.
+#
+# Define LIBPCREDIR=/foo/bar if your libpcre header and library files are in
+# /foo/bar/include and /foo/bar/lib directories.
+#
 # Define NO_CURL if you do not have libcurl installed.  git-http-pull and
 # git-http-push are not built, and you cannot use http:// and https://
 # transports.
@@ -1258,6 +1264,15 @@ ifdef NO_LIBGEN_H
        COMPAT_OBJS += compat/basename.o
 endif
 
+ifdef USE_LIBPCRE
+       BASIC_CFLAGS += -DUSE_LIBPCRE
+       ifdef LIBPCREDIR
+               BASIC_CFLAGS += -I$(LIBPCREDIR)/include
+               EXTLIBS += -L$(LIBPCREDIR)/$(lib) $(CC_LD_DYNPATH)$(LIBPCREDIR)/$(lib)
+       endif
+       EXTLIBS += -lpcre
+endif
+
 ifdef NO_CURL
        BASIC_CFLAGS += -DNO_CURL
        REMOTE_CURL_PRIMARY =
@@ -2089,6 +2104,7 @@ GIT-BUILD-OPTIONS: FORCE
        @echo PYTHON_PATH=\''$(subst ','\'',$(PYTHON_PATH_SQ))'\' >>$@
        @echo TAR=\''$(subst ','\'',$(subst ','\'',$(TAR)))'\' >>$@
        @echo NO_CURL=\''$(subst ','\'',$(subst ','\'',$(NO_CURL)))'\' >>$@
+       @echo USE_LIBPCRE=\''$(subst ','\'',$(subst ','\'',$(USE_LIBPCRE)))'\' >>$@
        @echo NO_PERL=\''$(subst ','\'',$(subst ','\'',$(NO_PERL)))'\' >>$@
        @echo NO_PYTHON=\''$(subst ','\'',$(subst ','\'',$(NO_PYTHON)))'\' >>$@
 ifdef GIT_TEST_CMP