sane_grep: pass "-a" if grep accepts it
Newer versions of GNU grep is reported to be pickier when we feed a
non-ASCII input and break some Porcelain scripts. As we know we do
not feed random binary file to our own sane_grep wrapper, allow us
to always pass "-a" by setting SANE_TEXT_GREP=-a Makefile variable
to work it around.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/Makefile b/Makefile
index 37e2d9e..59bbb1e 100644
--- a/Makefile
+++ b/Makefile
@@ -266,6 +266,9 @@
#
# Define NO_TCLTK if you do not want Tcl/Tk GUI.
#
+# Define SANE_TEXT_GREP to "-a" if you use recent versions of GNU grep
+# and egrep that are pickier when their input contains non-ASCII data.
+#
# The TCL_PATH variable governs the location of the Tcl interpreter
# used to optimize git-gui for your system. Only used if NO_TCLTK
# is not set. Defaults to the bare 'tclsh'.
@@ -1728,7 +1731,7 @@
SCRIPT_DEFINES = $(SHELL_PATH_SQ):$(DIFF_SQ):$(GIT_VERSION):\
$(localedir_SQ):$(NO_CURL):$(USE_GETTEXT_SCHEME):$(SANE_TOOL_PATH_SQ):\
- $(gitwebdir_SQ):$(PERL_PATH_SQ)
+ $(gitwebdir_SQ):$(PERL_PATH_SQ):$(SANE_TEXT_GREP)
define cmd_munge_script
$(RM) $@ $@+ && \
sed -e '1s|#!.*/sh|#!$(SHELL_PATH_SQ)|' \
@@ -1740,6 +1743,7 @@
-e $(BROKEN_PATH_FIX) \
-e 's|@@GITWEBDIR@@|$(gitwebdir_SQ)|g' \
-e 's|@@PERL@@|$(PERL_PATH_SQ)|g' \
+ -e 's|@@SANE_TEXT_GREP@@|$(SANE_TEXT_GREP)|g' \
$@.sh >$@+
endef
