Merge pull request #638 in G/fastr from ~LUKAS.STADLER_ORACLE.COM/fastr:bugfix/zlib_check to master

* commit 'd3cb26c3':
  fix zlib version check

com.oracle.truffle.r.native/gnur/Makefile.gnur

@@ -68,6 +68,7 @@ all: Makefile $(GNUR_HOME) iconv config build
 
 $(GNUR_HOME): 
 	tar xf $(TOPDIR)/../libdownloads/R-$(R_VERSION).tar.gz
+	ed $(GNUR_HOME)/configure < edconfigure # to fix the zlib version check (fixed in GNUR in the meantime)
 
 
 # After this platform check, GNUR_CONFIG_FLAGS must be set

com.oracle.truffle.r.native/gnur/edconfigure

+35510,35513c
+#ifdef ZLIB_VERNUM
+  if (ZLIB_VERNUM < 0x1250) {
+    exit(1);
+  }
+  exit(0);
+.
+w
+q