Quote the AC_LANG_SOURCE to eliminate warnings introduced by autoconf 2.6.8

8cc2017f · liujisi@google.com · 1d32532e · 8cc2017f
Commit 8cc2017f authored Dec 05, 2012 by liujisi@google.com
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configure.ac configure.ac +2 -2

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--- a/configure.ac
+++ b/configure.ac
@@ -90,12 +90,12 @@ AS_IF([test "$with_zlib" != no], [

  # First check the zlib header version.
  AC_COMPILE_IFELSE(
-    AC_LANG_PROGRAM([[
+    [AC_LANG_PROGRAM([[
        #include <zlib.h>
        #if !defined(ZLIB_VERNUM) || (ZLIB_VERNUM < 0x1204)
        # error zlib version too old
        #endif
-        ]], []), [
+        ]], [])], [
    AC_MSG_RESULT([ok (1.2.0.4 or later)])

    # Also need to add -lz to the linker flags and make sure this succeeds.