just unconditionally disable compilation of matlab & octave plugins unless...

just unconditionally disable compilation of matlab & octave plugins unless --enable-shared is turned on, since test was unreliable and the 32-bit systems where static libraries worked are disappearing anyway

Ignore-this: 27823a53f73a6c56ad7c0312c950b518

darcs-hash:20120720180419-c8de0-c22087237d77b38bcbfe44bd7780c11fec9fb549.gz

configure.ac

@@ -259,22 +259,8 @@ fi
 
 if test x"$OCT_INSTALL_DIR" != "x"; then
 if test "$enable_shared" = no; then
-     AC_MSG_CHECKING([whether mkoctfile can link with static objects])
-     rm -f conftest*
-     echo 'void foo(void) {};' > conftestfoo.c
-     $CC -c conftestfoo.c >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
-     cat > conftest.cc <<EOF
-#include <octave/oct.h>
-extern "C" void foo(void);
-DEFUN_DLD(foobar, args, nargout, "foo bar") { foo(); }
-EOF
-     if $MKOCTFILE conftest.cc conftestfoo.o >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD; then
-	AC_MSG_RESULT(yes)
-     else
-	AC_MSG_RESULT(no)
         AC_MSG_WARN([mkoctfile requires --enable-shared; won't compile Octave plugin])
 	OCT_INSTALL_DIR=""
-     fi
 fi
 fi
 
@@ -318,26 +304,12 @@ EOF
 
      if test x"$MATLAB" != xecho; then
      if test "$enable_shared" = no; then
-     AC_MSG_CHECKING([whether mex can link with static objects])
-     rm -f conftest*
-     echo 'void foo(void) {};' > conftestfoo.c
-     $CC -c conftestfoo.c >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
-     cat > conftest.c <<EOF
-#include <mex.h>
-extern void foo(void);
-void mexFunction(int nlhs, mxArray *plhs[[]],
-                 int nrhs, const mxArray *prhs[[]]) { foo(); }
-EOF
-     if $MEX conftest.c conftestfoo.o >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD; then
-	AC_MSG_RESULT(yes)
-     else
 	AC_MSG_RESULT(no)
         AC_MSG_WARN([mex requires --enable-shared; won't compile Matlab plugin])
 	MEX_INSTALL_DIR=""
 	MATLAB=echo
      fi
      fi
-     fi
 
      if test x"$MATLAB" != xecho; then
        # try to find installation directory