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Re: basename conflicting definitions

On 4/21/2015 9:38 AM, Corinna Vinschen wrote:
Hi Marco,

On Apr 21 07:31, Marco Atzeri wrote:
Hi Corinna,
building open-mpi on

  $ uname -svrm
CYGWIN_NT-6.1 2.0.0(0.287/5/3) 2015-04-17 12:08 x86_64

I see a conflict from 2 header of

$ cygcheck -f /usr/include/libgen.h /usr/include/string.h

configure:59845: gcc -std=gnu99 -c -DNDEBUG -ggdb -O2 -pipe
-Wimplicit-function-declaration -fdebug-prefix-map=/pub/devel/openmpi/openmpi-1.8.5pre2-1.x86_64/build=/usr/src/debug/openmpi-1.8.5pre2-1 -fdebug-prefix-map=/pub/devel/openmpi/openmpi-1.8.5pre2-1.x86_64/src/openmpi-1.8.5pre2=/usr/src/debug/openmpi-1.8.5pre2-1
-finline-functions -fno-strict-aliasing -fexceptions  conftest.c >&5
In file included from conftest.c:429:0:
/usr/include/libgen.h:18:14: error: conflicting types for 'basename'
  extern char *basename (char *path);
In file included from /usr/include/stdio.h:29:0,
                  from conftest.c:396:
/usr/include/string.h:172:7: note: previous declaration of 'basename' was
  char *_EXFUN(basename,(const char *))

That's Yaakov's patch to introduce GNU basename with the different
behaviour depending whether you include via libgen.h or via #define
_GNU_SOURCE, string,h.

Which one is it here?  The conflict shouldn't occur, one of them should
have been filtered out based on the order.


libgen.h check

AC_CHECK_HEADERS([alloca.h aio.h arpa/inet.h dirent.h \
    dlfcn.h execinfo.h err.h fcntl.h grp.h inttypes.h libgen.h

attached extract from the config.log


Attachment: libgen_check.log
Description: Text document

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