From efdc61a680a3e175efd427944bfaead31aeb7ea1 Mon Sep 17 00:00:00 2001
From: Vadim Zeitlin <vadim@wxwidgets.org>
Date: Fri, 7 Jun 2002 00:34:01 +0000
Subject: [PATCH] fixed glibc 2.1 detection test

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@15769 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---
 configure    | 2 +-
 configure.in | 5 ++++-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 5a73ea45c6..ee43a7be98 100755
--- a/configure
+++ b/configure
@@ -9589,7 +9589,7 @@ else
 #include <features.h>
 int main() {
 
-                #if !__GLIBC_PREREQ(2, 1)
+                #if (__GLIBC__ < 2) || (__GLIBC_MINOR__ < 1)
                     #error not glibc2.1
                 #endif
             
diff --git a/configure.in b/configure.in
index 0c1bf77c84..40ce4d8641 100644
--- a/configure.in
+++ b/configure.in
@@ -1363,11 +1363,14 @@ dnl flush the cache because checking for libraries below might abort
 AC_CACHE_SAVE
 
 dnl check for glibc version
+dnl
+dnl VZ: I have no idea why had this check been there originally, but now
+dnl     it is only used to get the recursive mutexes under Linux
 if test "$USE_LINUX" = 1; then
     AC_CACHE_CHECK([for glibc 2.1 or later], wx_cv_lib_glibc21,[
         AC_TRY_COMPILE([#include <features.h>],
             [
-                #if !__GLIBC_PREREQ(2, 1)
+                #if (__GLIBC__ < 2) || (__GLIBC_MINOR__ < 1)
                     #error not glibc2.1
                 #endif
             ],
-- 
2.45.2