Merge branch 'es/configure-getdelim'

Auto-detect availability of getdelim() that helps optimized version
of strbuf_getwholeline().

* es/configure-getdelim:
  configure: add getdelim() check
  config.mak.uname: Darwin: define HAVE_GETDELIM for modern OS X releases

config.mak.uname

@@ -102,6 +102,9 @@ ifeq ($(uname_S),Darwin)
 	ifeq ($(shell expr "$(uname_R)" : '[15]\.'),2)
 		NO_STRLCPY = YesPlease
 	endif
+	ifeq ($(shell test "`expr "$(uname_R)" : '\([0-9][0-9]*\)\.'`" -ge 11 && echo 1),1)
+		HAVE_GETDELIM = YesPlease
+	endif
 	NO_MEMMEM = YesPlease
 	USE_ST_TIMESPEC = YesPlease
 	HAVE_DEV_TTY = YesPlease

configure.ac

@@ -1041,6 +1041,12 @@ GIT_CHECK_FUNC(initgroups,
 [NO_INITGROUPS=YesPlease])
 GIT_CONF_SUBST([NO_INITGROUPS])
 #
+# Define HAVE_GETDELIM if you have getdelim in the C library.
+GIT_CHECK_FUNC(getdelim,
+[HAVE_GETDELIM=YesPlease],
+[HAVE_GETDELIM=])
+GIT_CONF_SUBST([HAVE_GETDELIM])
+#
 #
 # Define NO_MMAP if you want to avoid mmap.
 #