Python problem when compiling lldb

Using Swift
1

Hi,

I'm still working on getting a clean compile on Scientific Linux 7.1. So
for I've gotten a compile (after applying Pull Request #282) when for the
basic build script with no additional flags (./swift/utils/build-script).

I'm now trying to also compile with lldb (./swift/utils/build-script
--lldb). When I do so I get the following error:

-- Build files have been written to:

/home/lanes/swift/build/Ninja-DebugAssert/lldb-linux-x86_64
++ cmake_config_opt lldb
++ product=lldb
++ [[ Ninja == \X\c\o\d\e ]]
+ /home/lanes/cmake-3.4.1-Linux-x86_64.binary_distribution/bin/cmake
--build /home/lanes/swift/build/Ninja-DebugAssert/lldb-linux-x86_64 -- all
[10/845] Building CXX object
scripts/Python/modules/readline/CMakeFiles/readline.dir/readline.cpp.o
FAILED: /usr/bin/clang++ -DHAVE_PROCESS_VM_READV -DHAVE_ROUND
-DLIBXML2_DEFINED -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS
-D__STDC_LIMIT_MACROS -Dreadline_EXPORTS -Iscripts/Python/modules/readline
-I/home/lanes/swift/lldb/scripts/Python/modules/readline
-I/home/lanes/swift/lldb/include -Iinclude
-I/home/lanes/swift/build/Ninja-DebugAssert/llvm-linux-x86_64/include
-I/home/lanes/swift/build/Ninja-DebugAssert/llvm-linux-x86_64/tools/clang/include
-I/home/lanes/swift/llvm/include
-I/home/lanes/swift/llvm/tools/clang/include
-I/home/lanes/swift/build/Ninja-DebugAssert/swift-linux-x86_64/include
-I/home/lanes/swift/swift/include -I/home/lanes/swift/lldb/source
-I/usr/local/include/python3.4m
-I/home/lanes/swift/lldb/tools/clang/include -I../clang/include
-I/usr/include/libxml2 -std=c++11 -fcolor-diagnostics
-Wno-deprecated-declarations -Wno-unknown-pragmas -Wno-strict-aliasing
-Wno-deprecated-register -Wno-vla-extension -fno-exceptions -fno-rtti -g
-fPIC -MMD -MT
scripts/Python/modules/readline/CMakeFiles/readline.dir/readline.cpp.o -MF
scripts/Python/modules/readline/CMakeFiles/readline.dir/readline.cpp.o.d -o
scripts/Python/modules/readline/CMakeFiles/readline.dir/readline.cpp.o -c
/home/lanes/swift/lldb/scripts/Python/modules/readline/readline.cpp
/home/lanes/swift/lldb/scripts/Python/modules/readline/readline.cpp:68:34:
error: assigning to 'char *(*)(FILE *, FILE *, const char *)' from
incompatible type 'char *(FILE *, FILE *, char *)': type mismatch at 3rd
parameter ('const char *' vs 'char *')
    PyOS_ReadlineFunctionPointer = simple_readline;
                                 ^ ~~~~~~~~~~~~~~~
/home/lanes/swift/lldb/scripts/Python/modules/readline/readline.cpp:70:5:
error: use of undeclared identifier 'Py_InitModule4'
    Py_InitModule4(
    ^
2 errors generated.

I've installed the python-devel, python27-python-devel, and
python33-python-devel packages, as well as swig.

The readline.cpp file where the error occurs imports Python.h. The header
file Python.h exists at /usr/include/python2.7/Python.h, and it includes
modsupport.h (/usr/include/python2.7/modsupport.h) which appears to define
Py_InitModule4.

Any thoughts or assistance would be appreciated.

Thanks,
Lane

2

See: [SR-14] Wrong python version selected when building swift-lldb · Issue #4417 · apple/llvm-project · GitHub

···

On 2015.12.10 at 09:29 -0600, Lane Schwartz via swift-users wrote:

I'm still working on getting a clean compile on Scientific Linux 7.1. So
for I've gotten a compile (after applying Pull Request #282) when for the
basic build script with no additional flags (./swift/utils/build-script).

I'm now trying to also compile with lldb (./swift/utils/build-script
--lldb). When I do so I get the following error:
> PyOS_ReadlineFunctionPointer = simple_readline;
> ^ ~~~~~~~~~~~~~~~
> /home/lanes/swift/lldb/scripts/Python/modules/readline/readline.cpp:70:5:
> error: use of undeclared identifier 'Py_InitModule4'
> Py_InitModule4(
> ^

--
Markus

3

Thanks, Markus. I'll keep tabs on that bug as well.

···

On Thu, Dec 10, 2015 at 9:32 AM, Markus Trippelsdorf <markus@trippelsdorf.de > wrote:

On 2015.12.10 at 09:29 -0600, Lane Schwartz via swift-users wrote:
> I'm still working on getting a clean compile on Scientific Linux 7.1. So
> for I've gotten a compile (after applying Pull Request #282) when for the
> basic build script with no additional flags (./swift/utils/build-script).
>
> I'm now trying to also compile with lldb (./swift/utils/build-script
> --lldb). When I do so I get the following error:
> > PyOS_ReadlineFunctionPointer = simple_readline;
> > ^ ~~~~~~~~~~~~~~~
> >
/home/lanes/swift/lldb/scripts/Python/modules/readline/readline.cpp:70:5:
> > error: use of undeclared identifier 'Py_InitModule4'
> > Py_InitModule4(
> > ^

See: [SR-14] Wrong python version selected when building swift-lldb · Issue #4417 · apple/llvm-project · GitHub

--
Markus

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