Re: [Help-source-highlight] Configure error on 3.1.4

[Gary Funck]

On 10/26/10 14:29:49, Thomas Ricatte wrote:
> Hello,
> 
> I have a problem while configuring source-highlight on my CentOS :
> 
> ...
> checking whether the compiler has ios_base... yes
> checking for boostlib >= 1.33.1... yes
> checking whether the Boost::Regex library is available... yes
> configure: error: Could not link against   !
[...]
> My problem seems to be the same as this one  :
> http://www.mail-archive.com/address@hidden/msg29804.html
> but I haven't find a way to solve it.
> 
> The output is weird because the error message is incomplete :
> "Could not ling against     ?"

I ran into the same problem.

Configuration:
  distro: Fedora FC14 x86_64
  source hilite: latest git

Here's what I found out:

1) Pulled the latest m4/ax_boost_regex.m4 from
   $ git clone git://git.sv.gnu.org/autoconf_archive.git
   $ cp -p autoconf-archive/m4/ax_boost_regex.m4 
src-highlite/m4/ax_boost_regex.m4
   This turned out not to fix the problem, but the new version
   does provide a slightly better error diagnostic.
   
2) Ran configure with echo-ing on:
   $ sh -x configure >c.log 2>&1

   Here are the relevant bits:

+ ax_cv_boost_regex=yes
+ ac_cpp='$CXXCPP $CPPFLAGS'
+ ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac
_ext $LIBS >&5'
+ ac_compiler_gnu=yes
+ printf '%s\n' 'configure:15855: result: yes'
+ printf '%s\n' yes
yes
+ test xyes = xyes
+ printf '%s\n' '#define HAVE_BOOST_REGEX /**/'
++ echo -L/usr/lib
++ sed -e 's/[^\/]*//'
+ BOOSTLIBDIR=/usr/lib
+ test x = x
++ sed 's,.*/,,'
++ sed -e 's;^lib\(boost_regex.*\)\.so.*$;\1;' -e 's;^lib\(boost_regex.*\)\.a*$
;\1;'
++ ls '/usr/lib/libboost_regex*.so*' '/usr/lib/libboost_regex*.a*'
+ test x '!=' xyes
++ sed 's,.*/,,'
++ sed -e 's;^\(boost_regex.*\)\.dll.*$;\1;' -e 's;^\(boost_regex.*\)\.a*$;\1;'
++ ls '/usr/lib/boost_regex*.dll*' '/usr/lib/boost_regex*.a*'
+ test x = x
+ as_fn_error 'Could not find a version of the library!' 16006 5

As noted above, the autoconf macro is looking for
'/usr/lib/libboost_regex*.so*' and finds none.

3) Search for the boost_regex library on local system.

    $ ls -1 /*{,/*}/libboost_regex*.so*     
    ls: cannot access /*/libboost_regex*.so*: No such file or directory
    /usr/lib64/libboost_regex-mt.so
    /usr/lib64/libboost_regex-mt.so.1.44.0
    /usr/lib64/libboost_regex.so
    /usr/lib64/libboost_regex.so.1.44.0

At this point, the easiest work around is to:

   # INSTALL THE 32-BIT BOOST REGEX LIBRARY
   $ sudo yum install boost-regex.i686

And 'configure' will run without errors.

This seems to work, but may not be the best work-around,
however ...

The longer term fix is to correct the library look up
in m4/ax_boost_regex.m4 so that it uses a more general
scheme to locate the shared library. Perhaps there is
already an AC_... function to do that job?

Or there may also be a problem in the way that the configure
script is setting BOOST_LDFLAGS.  The value that it
comes up with is: /usr/lib, and it should be /usr/lib64.

The reason that --with-boost=<path-to-lib> is probably
the best work-around for now is that it avoids the (failed)
search for the location of the boost library, and
the incorrect setting of BOOST_LDFLAGS.