[cfe-dev] [static checker] unexpected strip -std=gnu99

[Дмитрий Дьяченко]

Jordan,

Now I know problem commit -- 189372, but I don't have a little testcase yet.

[ clang]$ svn log -r189372
------------------------------------------------------------------------
r189372 | jrose | 2013-08-27 20:59:33 +0400 (Вт., 27 авг. 2013) | 6 lines

scan-build: Set CC and CXX as make variables when wrapping make builds.
[...]

A bit more about my project's build:
1) autoreconf
2) '... scan-build configure ...'
After step 2) build trees are identical for scan-build-189371 and
scan-build-189372

3) '... scan-build make'
Difference in command line is: no '-std=gnu99' in rev.189372

rev.189372 (FAIL)
$ ~/src/llvm_189372/tools/clang/tools/scan-build/scan-build
--use-analyzer=/home/dimhen/build/csa_189372/Release+Asserts/bin/clang
make
scan-build: Using
'/home/dimhen/build/csa_189372/Release+Asserts/bin/clang' for static
analysis
/bin/sh ../../../../libtool  --tag=CC --tag=disable-static
--mode=compile /home/dimhen/src/llvm_189372/tools/clang/tools/scan-build/ccc-analyzer
-DHAVE_CONFIG_H ..... x.c

rev.189371 (OK)
$ ~/src/llvm_189371/tools/clang/tools/scan-build/scan-build
--use-analyzer=/home/dimhen/build/csa_189371/Release+Asserts/bin/clang
make
scan-build: Using
'/home/dimhen/build/csa_189371/Release+Asserts/bin/clang' for static
analysis
/bin/sh ../../../../libtool  --tag=CC --tag=disable-static
--mode=compile /home/dimhen/src/llvm_189371/tools/clang/tools/scan-build/ccc-analyzer
-std=gnu99 -DHAVE_CONFIG_H ... x.c


A bit more about my environment

Fedora 19/x86_64
make 3.82
autoconf 2.69
libtool 2.4.2
m4 1.4.16

Thank you,
Dmitry

2013/9/6 Дмитрий Дьяченко <dimhen at gmail.com>:
> Thank you, Jordan
>
> I'll try to reduce project to something reasonable.
>
> Dmitry
>
> 2013/9/6 Jordan Rose <jordan_rose at apple.com>:
>> I don't see this in a simple test. Can you send a test project that exhibits this behavior?
>>
>> Jordan
>>
>>
>> On Sep 6, 2013, at 11:25 , Дмитрий Дьяченко <dimhen at gmail.com> wrote:
>>
>>> Hello!
>>>
>>> Sounds like sometimes after 2013-aug-23 (probably before 28 aug)
>>> scan-build  (or maybe clang) starts strip '-std=gnu99' from command
>>> line.
>>>
>>> I configure/make project using gcc for build and static checker for analyze.
>>>
>>> make with gcc has '-std=gnu99' in command line, but with
>>> scan-build/ccc-analyzer not.
>>>
>>> Anybody can confirm this?
>>>
>>> Thank you,
>>> Dmitry
>>> _______________________________________________
>>> cfe-dev mailing list
>>> cfe-dev at cs.uiuc.edu
>>> http://lists.cs.uiuc.edu/mailman/listinfo/cfe-dev
>>