From 0279224ed852af06facf23bd3517405dbc3f2c11 Mon Sep 17 00:00:00 2001
From: Fredrik Roubert <roubert@google.com>
Date: Fri, 16 Feb 2024 15:01:39 +0100
Subject: [PATCH] ICU-22556 Update configure files from configure.ac using
 autoreconf.

---
 icu4c/source/configure | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/icu4c/source/configure b/icu4c/source/configure
index 472da963419d..532af4d9ff05 100755
--- a/icu4c/source/configure
+++ b/icu4c/source/configure
@@ -2870,7 +2870,7 @@ ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 if test -n "$ac_tool_prefix"; then
-  for ac_prog in clang gcc cc c99 c89 xlc_r xlc cl.exe icc
+  for ac_prog in cc clang gcc c99 c89 xlc_r xlc cl.exe icc
   do
     # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
 set dummy $ac_tool_prefix$ac_prog; ac_word=$2
@@ -2914,7 +2914,7 @@ fi
 fi
 if test -z "$CC"; then
   ac_ct_CC=$CC
-  for ac_prog in clang gcc cc c99 c89 xlc_r xlc cl.exe icc
+  for ac_prog in cc clang gcc c99 c89 xlc_r xlc cl.exe icc
 do
   # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
@@ -3461,8 +3461,6 @@ ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
-# Make sure that we try clang++ first, which provides C++17 support.
-# The g++ compiler is less likely to support C++17.
 ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
@@ -3473,7 +3471,7 @@ if test -z "$CXX"; then
     CXX=$CCC
   else
     if test -n "$ac_tool_prefix"; then
-  for ac_prog in clang++ g++ c++ gpp xlC_r xlC aCC CC cxx cc++ cl.exe icc FCC KCC RCC
+  for ac_prog in c++ clang++ g++ gpp xlC_r xlC aCC CC cxx cc++ cl.exe icc FCC KCC RCC
   do
     # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
 set dummy $ac_tool_prefix$ac_prog; ac_word=$2
@@ -3517,7 +3515,7 @@ fi
 fi
 if test -z "$CXX"; then
   ac_ct_CXX=$CXX
-  for ac_prog in clang++ g++ c++ gpp xlC_r xlC aCC CC cxx cc++ cl.exe icc FCC KCC RCC
+  for ac_prog in c++ clang++ g++ gpp xlC_r xlC aCC CC cxx cc++ cl.exe icc FCC KCC RCC
 do
   # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2