From 0778e25fe1f34789794689f99e25b0c5ff001795 Mon Sep 17 00:00:00 2001
From: Pranav Kant <prka@google.com>
Date: Thu, 28 Dec 2023 22:49:45 +0000
Subject: Sync configure.ac with configure script

Fallback from bade6276d16523f81a1dedf22e591730592f15d6
---
 configure.ac | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/configure.ac b/configure.ac
index b1a1530..69bbbde 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1091,14 +1091,8 @@ if test -n "$CXX"; then
   if test "$with_clang" != no; then
   find_cxx_header () {
     echo "#include <$1>" | $CXX -M -MP -x c++ - 2>/dev/null \
-	 | sed -n "\,^[o.-]*[ :] /.*/$1 [\]$,{s,^[o.-]*[ :] /,/,;s/ [\]$//;p}"
-  }
-  else
-  find_cxx_header () {
-    echo "#include <$1>" | $CXX -M -MP -x c++ - 2>/dev/null \
 	 | sed -n "\,$1:,{s/:\$//;p}"
   }
-  fi
   CXX_CSTDLIB_HEADER="$(find_cxx_header cstdlib)"
   CXX_CMATH_HEADER="$(find_cxx_header cmath)"
   CXX_BITS_STD_ABS_H="$(find_cxx_header bits/std_abs.h)"
-- 
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