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* [Bug build/31141] New: gdbsupport fails to compile with clang due to missing C++ prototype for operator delete
@ 2023-12-11 16:12 jremus at linux dot ibm.com
  2023-12-11 16:13 ` [Bug build/31141] " jremus at linux dot ibm.com
                   ` (8 more replies)
  0 siblings, 9 replies; 10+ messages in thread
From: jremus at linux dot ibm.com @ 2023-12-11 16:12 UTC (permalink / raw)
  To: gdb-prs

https://sourceware.org/bugzilla/show_bug.cgi?id=31141

            Bug ID: 31141
           Summary: gdbsupport fails to compile with clang due to missing
                    C++ prototype for operator delete
           Product: gdb
           Version: HEAD
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: build
          Assignee: unassigned at sourceware dot org
          Reporter: jremus at linux dot ibm.com
  Target Milestone: ---

gdbsupport fails to compile with clang on s390x and x86 since commit
553b78748fd ("Rely on C++17 <new> in new-op.cc") as follows:

$ make
make  all-recursive
make[1]: Entering directory
'/home/jremus/my-dev-stuff/binutils-build/gdbsupport'
make[2]: Entering directory
'/home/jremus/my-dev-stuff/binutils-build/gdbsupport'
  CXX      new-op.o
../../binutils-gdb/gdbsupport/new-op.cc:114:1: error: no previous prototype for
function 'operator delete' [-Werror,-Wmissing-prototypes]
operator delete (void *p, std::size_t) noexcept
^
../../binutils-gdb/gdbsupport/new-op.cc:113:1: note: declare 'static' if the
function is not intended to be used outside of this translation unit
void
^
static
../../binutils-gdb/gdbsupport/new-op.cc:132:1: error: no previous prototype for
function 'operator delete[]' [-Werror,-Wmissing-prototypes]
operator delete[] (void *p, std::size_t) noexcept
^
../../binutils-gdb/gdbsupport/new-op.cc:131:1: note: declare 'static' if the
function is not intended to be used outside of this translation unit
void
^
static
2 errors generated.
make[2]: *** [Makefile:554: new-op.o] Error 1
make[2]: Leaving directory
'/home/jremus/my-dev-stuff/binutils-build/gdbsupport'
make[1]: *** [Makefile:574: all-recursive] Error 1
make[1]: Leaving directory
'/home/jremus/my-dev-stuff/binutils-build/gdbsupport'
make: *** [Makefile:446: all] Error 2


It works again when reverting commit 553b78748fd ("Rely on C++17 <new> in
new-op.cc").


My approach to build with clang are as follows:

cd $HOME
git clone git://sourceware.org/git/binutils-gdb.git
mkdir binutils-build
cd binutils-build
CC=clang CXX=clang++ ../binutils-gdb/configure
make


My above test build on x86 was on Fedora 38 with clang 16.0.6 and gcc C++
system header files from package libstdc++-devel 13.2.1.

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^ permalink raw reply	[flat|nested] 10+ messages in thread
end of thread, other threads:[~2023-12-22 16:42 UTC | newest]

Thread overview: 10+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2023-12-11 16:12 [Bug build/31141] New: gdbsupport fails to compile with clang due to missing C++ prototype for operator delete jremus at linux dot ibm.com
2023-12-11 16:13 ` [Bug build/31141] " jremus at linux dot ibm.com
2023-12-11 17:00 ` tromey at sourceware dot org
2023-12-11 17:04 ` tromey at sourceware dot org
2023-12-11 17:12 ` tromey at sourceware dot org
2023-12-11 17:33 ` jremus at linux dot ibm.com
2023-12-12 16:02 ` jremus at linux dot ibm.com
2023-12-12 20:32 ` tromey at sourceware dot org
2023-12-22 16:40 ` cvs-commit at gcc dot gnu.org
2023-12-22 16:42 ` tromey at sourceware dot org

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