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changeset 33135:9af30a72ca59

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maint: Merge stable to default.
author Markus Mützel <markus.muetzel@gmx.de>
date Sun, 03 Mar 2024 10:49:32 +0100
parents a13cb0eb53a9 (current diff) fe201b17eb86 (diff)
children 0a8166b45c29
files configure.ac
diffstat 1 files changed, 8 insertions(+), 0 deletions(-) [+]
line wrap: on
line diff
--- a/configure.ac	Sun Mar 03 10:17:29 2024 +0100
+++ b/configure.ac	Sun Mar 03 10:49:32 2024 +0100
@@ -302,6 +302,14 @@
 
 ### Determine which C++ compiler to use (we expect to find g++ or clang++).
 
+# AC_PROG_CXX attempts to find the compiler flags for activating support for
+# C++11.  As of autoconf version 2.71, the source code that it uses for that
+# test includes parts that are invalid in C++20.
+# We are using AX_CXX_COMPILE_STDCXX to determine the potentially needed flags
+# for the C++ version that Octave requires.  So, skip the (unnecessary and
+# broken) test for C++11 in AC_PROG_CXX by setting the following (undocumented)
+# flag:
+ac_cv_prog_cxx_cxx11=""
 AC_PROG_CXX
 AC_PROG_CXXCPP