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bug in AC_PROG_CXX
From: |
Thorsten Schütt |
Subject: |
bug in AC_PROG_CXX |
Date: |
Tue, 22 Nov 2016 11:25:18 +0100 |
Hi,
I believe that there is a bug in the AC_PROG_CXX macro. Please find attached
the reproducer including output and config.log.
I created a virtual machine with Fedora 24 with *no* C++ compiler, built the
master of the autoconf git repository, and created a configure file from the
configure.ac file (calling the new autooconf):
AC_INIT(repro, 0.1, address@hidden)
AC_PROG_CXX
echo $CXX
According to the documentation: "If none of those checks succeed, then as a
last resort set CXX to g++.” However, the configure file fails and stops before
reaching the echo command.
checking for g++... no
checking for c++... no
checking for gpp... no
checking for aCC... no
checking for CC... no
checking for cxx... no
checking for cc++... no
checking for cl.exe... no
checking for FCC... no
checking for KCC... no
checking for RCC... no
checking for xlC_r... no
checking for xlC... no
checking for clang++... no
checking whether the C++ compiler works... no
configure: error: in `/home/schuett/repro':
configure: error: C++ compiler cannot create executables
See `config.log' for more details
I am happy to provide more information if necessary.
Regards,
Thorsten
repro.tgz
Description: Binary data
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