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gdb: Pass -x c++ to the compiler

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Because we are compiling .c files containing C++ code, clang++ complains
with:

  clang: error: treating 'c' input as 'c++' when in C++ mode, this behavior is deprecated

If renaming all the source files to .cpp is out of the question, an
alternative is to pass "-x c++" to convince the compiler that we are
really compiling C++.  It works fine with GCC too.

gdb/ChangeLog:

	* Makefile.in (COMPILE.pre): Add "-x c++".

gdb/gdbserver/ChangeLog:

	* Makefile.in (COMPILE.pre): Add "-x c++".
This commit is contained in:
Simon Marchi 2017-06-17 23:17:00 +02:00
parent 291e629539
commit cf0dd6f02c
4 changed files with 10 additions and 2 deletions
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4
gdb/ChangeLog
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@ -1,3 +1,7 @@
2017-06-17 Simon Marchi <simon.marchi@ericsson.com>
* Makefile.in (COMPILE.pre): Add "-x c++".
2017-06-16 Alan Hayward <alan.hayward@arm.com>
Pedro Alves <palves@redhat.com>
Yao Qi <yao.qi@linaro.org>

2
gdb/Makefile.in
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@ -114,7 +114,7 @@ depcomp = $(SHELL) $(srcdir)/../depcomp
# Note that these are overridden by GNU make-specific code below if
# GNU make is used. The overrides implement dependency tracking.
COMPILE.pre = $(CXX) $(CXX_DIALECT)
COMPILE.pre = $(CXX) -x c++ $(CXX_DIALECT)
COMPILE.post = -c -o $@
COMPILE = $(COMPILE.pre) $(INTERNAL_CFLAGS) $(COMPILE.post)
POSTCOMPILE = @true

4
gdb/gdbserver/ChangeLog
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@ -1,3 +1,7 @@
2017-06-17 Simon Marchi <simon.marchi@ericsson.com>
* Makefile.in (COMPILE.pre): Add "-x c++".
2017-06-09 Sergio Durigan Junior <sergiodj@redhat.com>
* fork-child.c: Conditionally include <signal.h>.

2
gdb/gdbserver/Makefile.in
View File

@ -65,7 +65,7 @@ depcomp = $(SHELL) $(srcdir)/../depcomp
# Note that these are overridden by GNU make-specific code below if
# GNU make is used. The overrides implement dependency tracking.
COMPILE.pre = $(CXX) $(CXX_DIALECT)
COMPILE.pre = $(CXX) -x c++ $(CXX_DIALECT)
COMPILE.post = -c -o $@
COMPILE = $(COMPILE.pre) $(INTERNAL_CFLAGS) $(COMPILE.post)
POSTCOMPILE = @true