Hi,

 

I faced the same issue on Solaris 10 x86 while building a 64-bit emacs.  Eventually, it turned out to be a wrong build host (guessed by config.guess) causing the segfault.

 

<<<< from config.guess >>>>

    i86pc:SunOS:5.*:* | i86xen:SunOS:5.*:*)

        eval $set_cc_for_build

        SUN_ARCH="i386"

        # If there is a compiler, see if it is configured for 64-bit objects.

        # Note that the Sun cc does not turn __LP64__ into 1 like gcc does.

        # This test works for both compilers.

        if [ "$CC_FOR_BUILD" != 'no_compiler_found' ]; then

            if (echo '#ifdef __amd64'; echo IS_64BIT_ARCH; echo '#endif') | \

                (CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) | \

                grep IS_64BIT_ARCH >/dev/null

            then

                SUN_ARCH="x86_64"

            fi

        fi

        echo ${SUN_ARCH}-pc-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`

<<<< from config.guess >>>>

 

config.guess sets SUN_ARCH to ‘x86_64’ only if preprocessor defines ‘__amd64’ - however, the config.guess script does not use the CFLAGS passed (which actually sets -m64) for this preprocessor check and hence the build host is not set correctly.

 

Passing an explicit “--build=x86_64-pc-solaris2.10” to the configure script or setting CC=”<compiler> -m64” solves the issue.

 

 

Hope this helps.

 

Thanks.  Rajesh