[Buildroot] [Bug 15997] New: Build Squid with GCC12.3 in Buildroot 2024.02 will fail

[Buildroot] [Bug 15997] New: Build Squid with GCC12.3 in Buildroot 2024.02 will fail

[bugzilla]

https://bugs.busybox.net/show_bug.cgi?id=15997

            Bug ID: 15997
           Summary: Build Squid with GCC12.3 in Buildroot 2024.02 will
                    fail
           Product: buildroot
           Version: 2024.02
          Hardware: All
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P5
         Component: Other
          Assignee: unassigned@buildroot.uclibc.org
          Reporter: fli4l@franke-prem.de
                CC: buildroot@uclibc.org
  Target Milestone: ---

Hello,
i try to build Squid V6.6 with buildroot 2024.02 and GCC12.3.
But this will fail with the following faults:
/usr/bin/g++ -O2
-I/home/roland/.fbr/fbr-4.0-test_1_2024-x86_64/buildroot/output/per-package/squid/host/include
-o cf_gen ./cf_gen.cc -I. -I../include/ -I../src
./cf_gen.cc: In function 'int main(int, char**)':
./cf_gen.cc:268:63: error: forming reference to void
  268 |                     auto &newEntry = entries.emplace_back(name);
      |                                                               ^
./cf_gen.cc:277:68: error: forming reference to void
  277 |                     auto &newEntry = entries.emplace_back("comment");
      |                                                                    ^
make[2]: *** [Makefile:7264: cf_gen] Error 1

I have also try to add the old patch 
0004-libgcc-Exclude-UCLIBC-from-GLIBC-thread-check.patch
to GCC (As this patch is looks missing), but the build by me will still fail.

Are there any posibilty at your side for checking if the fail by you is also
or if this is depended on my system here.
Best regards,
Roland Franke
(Germany)

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[Buildroot] [Bug 15997] Build Squid with GCC12.3 in Buildroot 2024.02 will fail

[bugzilla]

https://bugs.busybox.net/show_bug.cgi?id=15997

--- Comment #1 from Roland Franke <fli4l@franke-prem.de> ---
All looks for me actually as that i had a problem in the general system.
Means, that maybe from older buildroot-systems something is "stuck" and 
will not be overwritten from the new versions (With gcc, c++, .....)
If i activate in squid.mk the SQUID_AUTORECONF = y the build will stuck
with "missing aclocal-1.15", but the system has aclocal-1.16 installed.
Maybe that information will help for finding the problem.

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[Buildroot] [Bug 15997] Build Squid with GCC12.3 in Buildroot 2024.02 will fail

[bugzilla]

https://bugs.busybox.net/show_bug.cgi?id=15997

--- Comment #2 from Peter Seiderer <ps.report@gmx.net> ---
Note: this one is the only g++ call of the squid build using the host compiler
'/usr/bin/g++' to build an internal tool

Which host system? Which host compiler ('/usr/bin/g++ --version')?

Compiles for me without failure using g++ 12.3.0, 13.2.1 and 14.0.1, but
e.g. the following fails with the same error you mention:

$ /usr/bin/g++ -std=c++11 -O2
-I/home/seiderer/Work/Buildroot/build_bug_15997_squid_001/host/include -o
cf_gen ./cf_gen.cc -I. -I../include/ -I../src
./cf_gen.cc: In function ‘int main(int, char**)’:
./cf_gen.cc:268:63: error: forming reference to void
  268 |                     auto &newEntry = entries.emplace_back(name);
      |                                                               ^
./cf_gen.cc:277:68: error: forming reference to void
  277 |                     auto &newEntry = entries.emplace_back("comment");
      |                                                     


Same with '-std=c++14', but '-std=c++17' works fine...

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[Buildroot] [Bug 15997] Build Squid with GCC12.3 in Buildroot 2024.02 will fail

[bugzilla]

https://bugs.busybox.net/show_bug.cgi?id=15997

--- Comment #3 from Peter Seiderer <ps.report@gmx.net> ---
Or try the following quick fix:

--- a/package/squid/squid.mk
+++ b/package/squid/squid.mk
@@ -21,7 +21,7 @@ SQUID_CONF_ENV = \
        ac_cv_func_strnstr=no \
        ac_cv_have_squid=yes \
        BUILDCXX="$(HOSTCXX)" \
-       BUILDCXXFLAGS="$(HOST_CXXFLAGS)"
+       BUILDCXXFLAGS="$(HOST_CXXFLAGS) -std=c++17"
 SQUID_CONF_OPTS = \
        --enable-async-io=8 \
        --enable-linux-netfilter \

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[Buildroot] [Bug 15997] Build Squid with GCC12.3 in Buildroot 2024.02 will fail

[bugzilla]

https://bugs.busybox.net/show_bug.cgi?id=15997

--- Comment #4 from Roland Franke <fli4l@franke-prem.de> ---
I will work with host debian 11 (bullseye).
gcc and g++ in version 10.2.1-6 (Standard-version)
Please accept, that with buildroot-2023.08.3 this fault was not come
on the same computer (Hyper-V VM on a windows-host).

Build tested with the:
BUILDCXXFLAGS="$(HOST_CXXFLAGS) -std=c++17"
will work for me also.

Thank you for your support.

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[Buildroot] [Bug 15997] Build Squid with GCC12.3 in Buildroot 2024.02 will fail

[bugzilla]

https://bugs.busybox.net/show_bug.cgi?id=15997

Arnout Vandecappelle <arnout@mind.be> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Status|NEW                         |RESOLVED

--- Comment #5 from Arnout Vandecappelle <arnout@mind.be> ---
Fixed in commit 9347905b95dfe045ee40ae69d9d3f00a2c1b7168.

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