Re: Problem compiling with libxml2 and Xcode 9

Mark Allan <[email protected]> Tue, 10 Oct 2017 17:02:50 +0100

Newsgroups	gmane.comp.security.virus.clamav.devel
Message-ID	<[email protected]>

Hi Steve,

Attached are the extracted lines from the config.log of the non-working version.  The one which works just gives the following output:

> configure:17809: checking for xmlTextReaderRead in -lxml2
> configure:17834: gcc -o conftest -O2 -g -D_FILE_OFFSET_BITS=64 -mmacosx-version-min=10.6  -arch x86_64 -w  -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk/usr/include/libxml2  -L/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk/usr/lib -lxml2 -lz -lpthread -licucore -lm conftest.c -lxml2 -L/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk/usr/lib -lxml2 -lz -lpthread -licucore -lm  >&5
> configure:17834: $? = 0
> configure:17843: result: yes



From a quick glance, I suspect that means there's a problem with the 10.13 SDK and I'll need to get in touch with Apple.  Can you confirm that I'm right?

Thanks
Mark




> On 10 Oct 2017, at 4:46 pm, Steven Morgan <[email protected]> wrote:
> 
> Mark,
> 
> The file config.log should contain the details of the configure test
> performed for -lxml2.
> 
> Can you tell what are the relevant differences in those files?
> 
> Thanks,
> Steve
> 
> On Tue, Oct 10, 2017 at 7:48 AM, Mark Allan <[email protected]> wrote:
> 
>> Hi all,
>> 
>> I just updated Xcode (Apple's developer tools for macOS) to version 9 and
>> I'm no longer able to compile ClamAV 0.99.2 with libxml2 support.
>> 
>> Here's the relevant output from the configure script:
>> 
>>> ...
>>> checking for libxml2 installation... /usr
>>> checking xml2-config version... 2.9.4
>>> checking for xmlreader.h in /usr... found
>>> checking for xmlTextReaderRead in -lxml2... no
>>> configure: ****** libxml2 support unavailable
>>> ...
>>> configure: Summary of engine detection features
>>>              bzip2       : ok
>>>              zlib        : /usr
>>>              unrar       : yes
>>>              pcre        : /usr/local/clamXav
>>>              libxml2     : no
>>>              yara        : yes
>> 
>> I'm aware that things tend to break when updating Xcode, so I did this
>> test in a virtual machine, which means I can say with certainty that the
>> devtools are the only things to have changed. If I revert to the snapshot
>> with Xcode 8.3, the configure script finds everything it needs to within
>> /usr:
>> 
>>> ...
>>> checking for libxml2 installation... /usr
>>> checking xml2-config version... 2.9.4
>>> checking for xmlreader.h in /usr... found
>>> checking for xmlTextReaderRead in -lxml2... yes
>>> configure: Compiling and linking with libxml2 from /usr
>>> ...
>>> configure: Summary of engine detection features
>>>              bzip2       : ok
>>>              zlib        : /usr
>>>              unrar       : yes
>>>              pcre        : /usr/local/clamXav
>>>              libxml2     : yes, from /usr
>>>              yara        : yes
>> 
>> If I update again (or go back to the snapshot with Xcode 9) it fails.
>> 
>> I've compared the checksums of the libraries in /usr/lib/libxml2.* and
>> they're identical before and after the upgrade. Similarly, diffing the
>> contents of /usr/include/libxml2/libxml shows they're exactly the same too,
>> so I'm not quite sure what's going on.
>> 
>> Can anyone help shed some light on the matter please?
>> 
>> Many thanks
>> Mark
>> 
>> _______________________________________________
>> http://lurker.clamav.net/list/clamav-devel.html
>> Please submit your patches to our Bugzilla: http://bugs.clamav.net
>> 
>> http://www.clamav.net/contact.html#ml
>> 
> _______________________________________________
> http://lurker.clamav.net/list/clamav-devel.html
> Please submit your patches to our Bugzilla: http://bugs.clamav.net
> 
> http://www.clamav.net/contact.html#ml

_______________________________________________
http://lurker.clamav.net/list/clamav-devel.html
Please submit your patches to our Bugzilla: http://bugs.clamav.net

http://www.clamav.net/contact.html#ml

config.log (application/octet-stream, 4.4 KB)

configure:17735: checking for libxml2 installation
configure:17762: result: /usr
configure:17778: checking xml2-config version
configure:17782: result: 2.9.4
configure:17794: checking for xmlreader.h in /usr
configure:17801: result: found
configure:17809: checking for xmlTextReaderRead in -lxml2
configure:17834: gcc -o conftest -O2 -g -D_FILE_OFFSET_BITS=64 -mmacosx-version-min=10.6  -arch x86_64 -w  -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.13.sdk/usr/include/libxml2  -L/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.13.sdk/usr/lib -lxml2 -lz -lpthread -licucore -lm conftest.c -lxml2 -L/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.13.sdk/usr/lib -lxml2 -lz -lpthread -licucore -lm  >&5
ld: file not found: /usr/lib/system/libsystem_darwin.dylib for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
configure:17834: $? = 1
configure: failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "ClamAV"
| #define PACKAGE_TARNAME "clamav"
| #define PACKAGE_VERSION "0.99.2"
| #define PACKAGE_STRING "ClamAV 0.99.2"
| #define PACKAGE_BUGREPORT "http://bugs.clamav.net/"
| #define PACKAGE_URL "http://www.clamav.net/"
| #define PACKAGE PACKAGE_NAME
| #define STDC_HEADERS 1
| #define HAVE_SYS_TYPES_H 1
| #define HAVE_SYS_STAT_H 1
| #define HAVE_STDLIB_H 1
| #define HAVE_STRING_H 1
| #define HAVE_MEMORY_H 1
| #define HAVE_STRINGS_H 1
| #define HAVE_INTTYPES_H 1
| #define HAVE_STDINT_H 1
| #define HAVE_UNISTD_H 1
| #define __EXTENSIONS__ 1
| #define _ALL_SOURCE 1
| #define _GNU_SOURCE 1
| #define _POSIX_PTHREAD_SEMANTICS 1
| #define _TANDEM_SOURCE 1
| #define LIBCLAMAV_FULLVER "7.1.1"
| #define LIBCLAMAV_MAJORVER 7
| #define VERSION "0.99.2"
| #define VERSION_SUFFIX ""
| #define HAVE_DLFCN_H 1
| #define LT_OBJDIR ".libs/"
| #define LT_MODULE_EXT ".so"
| #define LT_SHARED_EXT ".dylib"
| #define LT_MODULE_PATH_VAR "DYLD_LIBRARY_PATH"
| #define LT_DLSEARCH_PATH "/usr/local/lib:/lib:/usr/lib"
| #define HAVE_LIBDL 1
| #define HAVE_DLERROR 1
| #define HAVE_LIBDLLOADER 1
| #define error_t int
| #define __error_t_defined 1
| #define HAVE_PRELOADED_SYMBOLS 1
| #define HAVE_UNISTD_H 1
| #define HAVE_MACH_O_DYLD_H 1
| #define HAVE_DIRENT_H 1
| #define HAVE_CLOSEDIR 1
| #define HAVE_OPENDIR 1
| #define HAVE_READDIR 1
| #define HAVE_STRLCAT 1
| #define HAVE_STRLCPY 1
| #define LT_LIBEXT "a"
| #define LT_LIBPREFIX "lib"
| #define YYTEXT_POINTER 1
| #define HAVE_STDINT_H 1
| #define HAVE_UNISTD_H 1
| #define HAVE_DLFCN_H 1
| #define HAVE_INTTYPES_H 1
| #define HAVE_SYS_TIMES_H 1
| #define HAVE_MEMORY_H 1
| #define HAVE_STDLIB_H 1
| #define HAVE_STRINGS_H 1
| #define HAVE_STRING_H 1
| #define HAVE_SYS_MMAN_H 1
| #define HAVE_SYS_PARAM_H 1
| #define HAVE_SYS_STAT_H 1
| #define HAVE_SYS_TYPES_H 1
| #define HAVE_POLL_H 1
| #define HAVE_LIMITS_H 1
| #define HAVE_SYS_FILIO_H 1
| #define HAVE_SYS_UIO_H 1
| #define HAVE_TERMIOS_H 1
| #define HAVE_STDBOOL_H 1
| #define HAVE_PWD_H 1
| #define HAVE_GRP_H 1
| #define HAVE_SYS_QUEUE_H 1
| #define HAVE_SYS_CDEFS_H 1
| #define USE_SYSLOG 1
| #define HAVE_PTHREAD_H 1
| #define SCANBUFF 131072
| #define FILEBUFF 8192
| #define restrict __restrict
| #define SIZEOF_SHORT 2
| #define SIZEOF_INT 4
| #define SIZEOF_LONG 8
| #define SIZEOF_LONG_LONG 8
| #define SIZEOF_VOID_P 8
| #define HAVE_UNAME_SYSCALL 1
| #define HAVE_POLL 1
| #define HAVE_SETSID 1
| #define HAVE_MEMCPY 1
| #define HAVE_SNPRINTF 1
| #define HAVE_VSNPRINTF 1
| #define HAVE_STRERROR_R 1
| #define HAVE_STRLCPY 1
| #define HAVE_STRLCAT 1
| #define HAVE_STRCASESTR 1
| #define HAVE_INET_NTOP 1
| #define HAVE_SETGROUPS 1
| #define HAVE_INITGROUPS 1
| #define HAVE_CTIME_R 1
| #define HAVE_MKSTEMP 1
| #define HAVE_MADVISE 1
| #define HAVE_GETNAMEINFO 1
| #define HAVE_FSEEKO 1
| #define HAVE_MMAP 1
| #define HAVE_SYSCONF_SC_PAGESIZE 1
| #define HAVE_GETPAGESIZE 1
| #define ANONYMOUS_MAP MAP_ANONYMOUS
| #define HAVE_TIMEGM 1
| #define HAVE_SYSCTLBYNAME 1
| #define USE_MPOOL 1
| /* end confdefs.h.  */
|
| /* Override any GCC internal prototype to avoid an error.
|    Use char because int might match the return type of a GCC
|    builtin and then its argument prototype would still apply.  */
| #ifdef __cplusplus
| extern "C"
| #endif
| char xmlTextReaderRead ();
| int
| main ()
| {
| return xmlTextReaderRead ();
|   ;
|   return 0;
| }
configure:17843: result: no
configure:17871: ****** libxml2 support unavailable