> Am 14.02.2026 um 11:23 schrieb Jakub Jelinek <[email protected]>:
>
> Hi!
>
> The following patch adds new configure options similar to ObjC/Algol68
> --with-bdw-gc{,-lib,-include}= configure options where one can override
> the default of -I /usr/include/libxml2 and -lxml2 for finding libxml2
> headers and library. Similarly to the bdw-gc options, the override can
> be for all multilibs or just specific to each multilib.
>
> Bootstrapped/regtested on x86_64-linux and i686-linux without any of the
> new options on the configure line, and tested also with
> ../configure --enable-languages=c,c++,cobol
> --with-target-libxml2=/tmp/libxml2 \
> --disable-bootstrap --disable-libsanitizer --disable-libgomp
> Ok for trunk?
LGTM
Richard
> 2026-02-14 Jakub Jelinek <[email protected]>
>
> PR cobol/122839
> * configure.ac (--with-target-libxml2, --with-target-libxml2-include,
> --with-target-libxml2-lib): New configure options, use those to find
> libxml2.
> (LIBXML2_CPPFLAGS, LIBXML2_LIBS): New AC_SUBSTs.
> * Makefile.am (AM_CPPFLAGS): Add $(LIBXML2_CPPFLAGS) rather than
> -I /usr/include/libxml2.
> (libgcobol_la_LDFLAGS): Add $(LIBXML2_LIBS).
> * configure: Regenerate.
> * config.h.in: Regenerate.
> * Makefile.in: Regenerate.
>
> * doc/install.texi (COBOL-Specific Options): New.
>
> --- libgcobol/configure.ac.jj 2025-11-29 17:28:45.753139094 +0100
> +++ libgcobol/configure.ac 2026-02-13 12:52:26.475053320 +0100
> @@ -233,14 +233,102 @@ libgcobol_have_cacosf128=no
> AC_SEARCH_LIBS([cacosf128], [c m], libgcobol_have_cacosf128=yes)
>
> # These are libxml2.
> -AC_CHECK_LIB(xml2, xmlSAXUserParseMemory,
> - [LIBS="-lxml2 $LIBS"
> - AC_DEFINE(HAVE_SAX_XML_PARSER, 1,
> - [Define to 1 if you have the `xmlSAXUserParseMemory' function.])])
> -AC_CHECK_LIB(xml2, xmlParseChunk,
> - [LIBS="-lxml2 $LIBS"
> - AC_DEFINE(HAVE_SAX_XML_PARSER, 1,
> - [Define to 1 if you have the `xmlParseChunk' function.])])
> +AC_ARG_WITH([target-libxml2],
> +[AS_HELP_STRING([--with-target-libxml2=PATHLIST],
> + [specify prefix directory for installed libxml2 package.
> + Equivalent to --with-target-libxml2-include=PATH/include
> + plus --with-target-libxml2-lib=PATH/lib])])
> +AC_ARG_WITH([target-libxml2-include],
> +[AS_HELP_STRING([--with-target-libxml2-include=PATHLIST],
> + [specify directories for installed libxml2 include files])])
> +AC_ARG_WITH([target-libxml2-lib],
> +[AS_HELP_STRING([--with-target-libxml2-lib=PATHLIST],
> + [specify directories for installed libxml2 library])])
> +
> +if test "x$use_libgcobol" = xyes && test "x$libgcobol_cv_have_int128" =
> xyes; then
> + AC_MSG_CHECKING([for libxml2])
> + if test
> "x$with_target_libxml2$with_target_libxml2_include$with_target_libxml2_lib" =
> x; then
> + dnl no libxml2 options, assuming libxml2 in default locations
> + LIBXML2_CPPFLAGS="-I /usr/include/libxml2"
> + LIBXML2_LIBS="-lxml2"
> + else
> + dnl libxml2 options passed by configure flags
> + if test "x$with_target_libxml2_include" = x && test
> "x$with_target_libxml2_lib" != x; then
> + AC_MSG_ERROR([found --with-target-libxml2-lib but
> --with-target-libxml2-include missing])
> + elif test "x$with_target_libxml2_include" != x && test
> "x$with_target_libxml2_lib" = x; then
> + AC_MSG_ERROR([found --with-target-libxml2-include but
> --with-target-libxml2-lib missing])
> + else
> + AC_MSG_RESULT([using paths configured with --with-target-libxml2
> options])
> + fi
> + mldir=`${CC-gcc} --print-multi-directory 2>/dev/null`
> + libxml2_val=
> + if test "x$with_target_libxml2" != x; then
> + for i in `echo $with_target_libxml2 | tr ',' ' '`; do
> + case "$i" in
> + *=*) sd=${i%%=*}; d=${i#*=} ;;
> + *) sd=.; d=$i ;;
> + esac
> + if test "$mldir" = "$sd"; then
> + libxml2_val=$d
> + fi
> + done
> + if test "x$libxml2_val" = x; then
> + AC_MSG_ERROR([no multilib path ($mldir) found in
> --with-target-libxml2])
> + fi
> + libxml2_inc_dir="$libxml2_val/include"
> + libxml2_lib_dir="$libxml2_val/lib"
> + fi
> + libxml2_val=
> + if test "x$with_target_libxml2_include" != x; then
> + for i in `echo $with_target_libxml2_include | tr ',' ' '`; do
> + case "$i" in
> + *=*) sd=${i%%=*}; d=${i#*=} ;;
> + *) sd=.; d=$i; fallback=$i ;;
> + esac
> + if test "$mldir" = "$sd"; then
> + libxml2_val=$d
> + fi
> + done
> + if test "x$libxml2_val" = x && test "x$libxml2_inc_dir" = x && test
> "x$fallback" != x; then
> + libxml2_inc_dir="$fallback"
> + elif test "x$libxml2_val" = x; then
> + AC_MSG_ERROR([no multilib path ($mldir) found in
> --with-target-libxml2-include])
> + else
> + libxml2_inc_dir="$libxml2_val"
> + fi
> + fi
> + libxml2_val=
> + if test "x$with_target_libxml2_lib" != x; then
> + for i in `echo $with_target_libxml2_lib | tr ',' ' '`; do
> + case "$i" in
> + *=*) sd=${i%%=*}; d=${i#*=} ;;
> + *) sd=.; d=$i ;;
> + esac
> + if test "$mldir" = "$sd"; then
> + libxml2_val=$d
> + fi
> + done
> + if test "x$libxml2_val" = x; then
> + AC_MSG_ERROR([no multilib path ($mldir) found in
> --with-target-libxml2-lib])
> + fi
> + libxml2_lib_dir="$libxml2_val"
> + fi
> + if test "x$libxml2_inc_dir" = x; then
> + AC_MSG_ERROR([no multilib path ($mldir) found in
> --with-target-libxml2-include])
> + fi
> + if test "x$libxml2_lib_dir" = x; then
> + AC_MSG_ERROR([no multilib path ($mldir) found in
> --with-target-libxml2-lib])
> + fi
> + LIBXML2_CPPFLAGS="-I$libxml2_inc_dir"
> + LIBXML2_LIBS="-L$libxml2_lib_dir -lxml2"
> + AC_MSG_RESULT([found])
> + fi
> +else
> + LIBXML2_CPPFLAGS=
> + LIBXML2_LIBS=
> +fi
> +AC_SUBST(LIBXML2_CPPFLAGS)
> +AC_SUBST(LIBXML2_LIBS)
>
> # Copied from gcc/configure.ac. 2025-06-05 R.J.Dubner
> # At least for glibc, clock_gettime is in librt. But don't pull that
> --- libgcobol/Makefile.am.jj 2026-02-13 10:32:21.503992411 +0100
> +++ libgcobol/Makefile.am 2026-02-13 12:54:49.278640762 +0100
> @@ -85,7 +85,7 @@ nobase_libsubinclude_HEADERS = \
> WARN_CFLAGS = -W -Wall -Wwrite-strings
>
> AM_CPPFLAGS = -I. -I posix/shim $(LIBQUADINCLUDE)
> -AM_CPPFLAGS += -I /usr/include/libxml2
> +AM_CPPFLAGS += $(LIBXML2_CPPFLAGS)
>
> AM_CFLAGS = $(XCFLAGS)
> AM_CXXFLAGS = $(XCFLAGS)
> @@ -103,7 +103,7 @@ endif
> libgcobol_la_LINK = $(CXXLINK) $(libgcobol_la_LDFLAGS)
> version_arg = -version-info $(LIBGCOBOL_VERSION)
> libgcobol_la_LDFLAGS = $(LTLDFLAGS) $(LIBQUADLIB) $(LTLIBICONV) \
> - $(extra_ldflags_libgcobol) $(LIBS) $(version_arg)
> + $(extra_ldflags_libgcobol) $(LIBS) $(LIBXML2_LIBS) $(version_arg)
> libgcobol_la_DEPENDENCIES = libgcobol.spec $(LIBQUADLIB_DEP)
>
> endif BUILD_LIBGCOBOL
> --- libgcobol/configure.jj 2025-12-29 13:59:51.122075881 +0100
> +++ libgcobol/configure 2026-02-13 12:53:58.624496524 +0100
> @@ -644,6 +644,8 @@ LIBQUADINCLUDE
> LIBQUADLIB_DEP
> LIBQUADLIB
> LIBQUADSPEC
> +LIBXML2_LIBS
> +LIBXML2_CPPFLAGS
> extra_ldflags_libgcobol
> LIBGCOBOL_VERSION
> BUILD_LIBGCOBOL_FALSE
> @@ -803,6 +805,9 @@ with_toolexeclibdir
> enable_rpath
> with_libiconv_prefix
> with_libiconv_type
> +with_target_libxml2
> +with_target_libxml2_include
> +with_target_libxml2_lib
> enable_libquadmath
> with_gcc_major_version_only
> '
> @@ -1472,6 +1477,16 @@ Optional Packages:
> --with-libiconv-prefix[=DIR] search for libiconv in DIR/include and DIR/lib
> --without-libiconv-prefix don't search for libiconv in includedir and
> libdir
> --with-libiconv-type=TYPE type of library to search for
> (auto/static/shared)
> + --with-target-libxml2=PATHLIST
> + specify prefix directory for installed libxml2
> + package. Equivalent to
> + --with-target-libxml2-include=PATH/include plus
> + --with-target-libxml2-lib=PATH/lib
> + --with-target-libxml2-include=PATHLIST
> + specify directories for installed libxml2 include
> + files
> + --with-target-libxml2-lib=PATHLIST
> + specify directories for installed libxml2 library
> --with-gcc-major-version-only
> use only GCC major number in filesystem paths
>
> @@ -12199,7 +12214,7 @@ else
> lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
> lt_status=$lt_dlunknown
> cat > conftest.$ac_ext <<_LT_EOF
> -#line 12202 "configure"
> +#line 12217 "configure"
> #include "confdefs.h"
>
> #if HAVE_DLFCN_H
> @@ -12305,7 +12320,7 @@ else
> lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
> lt_status=$lt_dlunknown
> cat > conftest.$ac_ext <<_LT_EOF
> -#line 12308 "configure"
> +#line 12323 "configure"
> #include "confdefs.h"
>
> #if HAVE_DLFCN_H
> @@ -17666,99 +17681,111 @@ fi
>
>
> # These are libxml2.
> -{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for xmlSAXUserParseMemory
> in -lxml2" >&5
> -$as_echo_n "checking for xmlSAXUserParseMemory in -lxml2... " >&6; }
> -if ${ac_cv_lib_xml2_xmlSAXUserParseMemory+:} false; then :
> - $as_echo_n "(cached) " >&6
> -else
> - ac_check_lib_save_LIBS=$LIBS
> -LIBS="-lxml2 $LIBS"
> -if test x$gcc_no_link = xyes; then
> - as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES."
> "$LINENO" 5
> -fi
> -cat confdefs.h - <<_ACEOF >conftest.$ac_ext
> -/* end confdefs.h. */
>
> -/* Override any GCC internal prototype to avoid an error.
> - Use char because int might match the return type of a GCC
> - builtin and then its argument prototype would still apply. */
> -#ifdef __cplusplus
> -extern "C"
> -#endif
> -char xmlSAXUserParseMemory ();
> -int
> -main ()
> -{
> -return xmlSAXUserParseMemory ();
> - ;
> - return 0;
> -}
> -_ACEOF
> -if ac_fn_cxx_try_link "$LINENO"; then :
> - ac_cv_lib_xml2_xmlSAXUserParseMemory=yes
> -else
> - ac_cv_lib_xml2_xmlSAXUserParseMemory=no
> -fi
> -rm -f core conftest.err conftest.$ac_objext \
> - conftest$ac_exeext conftest.$ac_ext
> -LIBS=$ac_check_lib_save_LIBS
> +# Check whether --with-target-libxml2 was given.
> +if test "${with_target_libxml2+set}" = set; then :
> + withval=$with_target_libxml2;
> fi
> -{ $as_echo "$as_me:${as_lineno-$LINENO}: result:
> $ac_cv_lib_xml2_xmlSAXUserParseMemory" >&5
> -$as_echo "$ac_cv_lib_xml2_xmlSAXUserParseMemory" >&6; }
> -if test "x$ac_cv_lib_xml2_xmlSAXUserParseMemory" = xyes; then :
> - LIBS="-lxml2 $LIBS"
>
> -$as_echo "#define HAVE_SAX_XML_PARSER 1" >>confdefs.h
>
> +# Check whether --with-target-libxml2-include was given.
> +if test "${with_target_libxml2_include+set}" = set; then :
> + withval=$with_target_libxml2_include;
> fi
>
> -{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for xmlParseChunk in
> -lxml2" >&5
> -$as_echo_n "checking for xmlParseChunk in -lxml2... " >&6; }
> -if ${ac_cv_lib_xml2_xmlParseChunk+:} false; then :
> - $as_echo_n "(cached) " >&6
> -else
> - ac_check_lib_save_LIBS=$LIBS
> -LIBS="-lxml2 $LIBS"
> -if test x$gcc_no_link = xyes; then
> - as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES."
> "$LINENO" 5
> -fi
> -cat confdefs.h - <<_ACEOF >conftest.$ac_ext
> -/* end confdefs.h. */
>
> -/* Override any GCC internal prototype to avoid an error.
> - Use char because int might match the return type of a GCC
> - builtin and then its argument prototype would still apply. */
> -#ifdef __cplusplus
> -extern "C"
> -#endif
> -char xmlParseChunk ();
> -int
> -main ()
> -{
> -return xmlParseChunk ();
> - ;
> - return 0;
> -}
> -_ACEOF
> -if ac_fn_cxx_try_link "$LINENO"; then :
> - ac_cv_lib_xml2_xmlParseChunk=yes
> -else
> - ac_cv_lib_xml2_xmlParseChunk=no
> -fi
> -rm -f core conftest.err conftest.$ac_objext \
> - conftest$ac_exeext conftest.$ac_ext
> -LIBS=$ac_check_lib_save_LIBS
> +# Check whether --with-target-libxml2-lib was given.
> +if test "${with_target_libxml2_lib+set}" = set; then :
> + withval=$with_target_libxml2_lib;
> fi
> -{ $as_echo "$as_me:${as_lineno-$LINENO}: result:
> $ac_cv_lib_xml2_xmlParseChunk" >&5
> -$as_echo "$ac_cv_lib_xml2_xmlParseChunk" >&6; }
> -if test "x$ac_cv_lib_xml2_xmlParseChunk" = xyes; then :
> - LIBS="-lxml2 $LIBS"
>
> -$as_echo "#define HAVE_SAX_XML_PARSER 1" >>confdefs.h
>
> +if test "x$use_libgcobol" = xyes && test "x$libgcobol_cv_have_int128" =
> xyes; then
> + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for libxml2" >&5
> +$as_echo_n "checking for libxml2... " >&6; }
> + if test
> "x$with_target_libxml2$with_target_libxml2_include$with_target_libxml2_lib" =
> x; then
> + LIBXML2_CPPFLAGS="-I /usr/include/libxml2"
> + LIBXML2_LIBS="-lxml2"
> + else
> + if test "x$with_target_libxml2_include" = x && test
> "x$with_target_libxml2_lib" != x; then
> + as_fn_error $? "found --with-target-libxml2-lib but
> --with-target-libxml2-include missing" "$LINENO" 5
> + elif test "x$with_target_libxml2_include" != x && test
> "x$with_target_libxml2_lib" = x; then
> + as_fn_error $? "found --with-target-libxml2-include but
> --with-target-libxml2-lib missing" "$LINENO" 5
> + else
> + { $as_echo "$as_me:${as_lineno-$LINENO}: result: using paths
> configured with --with-target-libxml2 options" >&5
> +$as_echo "using paths configured with --with-target-libxml2 options" >&6; }
> + fi
> + mldir=`${CC-gcc} --print-multi-directory 2>/dev/null`
> + libxml2_val=
> + if test "x$with_target_libxml2" != x; then
> + for i in `echo $with_target_libxml2 | tr ',' ' '`; do
> + case "$i" in
> + *=*) sd=${i%%=*}; d=${i#*=} ;;
> + *) sd=.; d=$i ;;
> + esac
> + if test "$mldir" = "$sd"; then
> + libxml2_val=$d
> + fi
> + done
> + if test "x$libxml2_val" = x; then
> + as_fn_error $? "no multilib path ($mldir) found in
> --with-target-libxml2" "$LINENO" 5
> + fi
> + libxml2_inc_dir="$libxml2_val/include"
> + libxml2_lib_dir="$libxml2_val/lib"
> + fi
> + libxml2_val=
> + if test "x$with_target_libxml2_include" != x; then
> + for i in `echo $with_target_libxml2_include | tr ',' ' '`; do
> + case "$i" in
> + *=*) sd=${i%%=*}; d=${i#*=} ;;
> + *) sd=.; d=$i; fallback=$i ;;
> + esac
> + if test "$mldir" = "$sd"; then
> + libxml2_val=$d
> + fi
> + done
> + if test "x$libxml2_val" = x && test "x$libxml2_inc_dir" = x && test
> "x$fallback" != x; then
> + libxml2_inc_dir="$fallback"
> + elif test "x$libxml2_val" = x; then
> + as_fn_error $? "no multilib path ($mldir) found in
> --with-target-libxml2-include" "$LINENO" 5
> + else
> + libxml2_inc_dir="$libxml2_val"
> + fi
> + fi
> + libxml2_val=
> + if test "x$with_target_libxml2_lib" != x; then
> + for i in `echo $with_target_libxml2_lib | tr ',' ' '`; do
> + case "$i" in
> + *=*) sd=${i%%=*}; d=${i#*=} ;;
> + *) sd=.; d=$i ;;
> + esac
> + if test "$mldir" = "$sd"; then
> + libxml2_val=$d
> + fi
> + done
> + if test "x$libxml2_val" = x; then
> + as_fn_error $? "no multilib path ($mldir) found in
> --with-target-libxml2-lib" "$LINENO" 5
> + fi
> + libxml2_lib_dir="$libxml2_val"
> + fi
> + if test "x$libxml2_inc_dir" = x; then
> + as_fn_error $? "no multilib path ($mldir) found in
> --with-target-libxml2-include" "$LINENO" 5
> + fi
> + if test "x$libxml2_lib_dir" = x; then
> + as_fn_error $? "no multilib path ($mldir) found in
> --with-target-libxml2-lib" "$LINENO" 5
> + fi
> + LIBXML2_CPPFLAGS="-I$libxml2_inc_dir"
> + LIBXML2_LIBS="-L$libxml2_lib_dir -lxml2"
> + { $as_echo "$as_me:${as_lineno-$LINENO}: result: found" >&5
> +$as_echo "found" >&6; }
> + fi
> +else
> + LIBXML2_CPPFLAGS=
> + LIBXML2_LIBS=
> fi
>
>
> +
> # Copied from gcc/configure.ac. 2025-06-05 R.J.Dubner
> # At least for glibc, clock_gettime is in librt. But don't pull that
> # in if it still doesn't give us the function we want.
> --- libgcobol/config.h.in.jj 2025-11-14 11:00:36.950839386 +0100
> +++ libgcobol/config.h.in 2026-02-13 12:54:05.029908657 +0100
> @@ -55,9 +55,6 @@
> /* Define to 1 if you have the `random_r' function. */
> #undef HAVE_RANDOM_R
>
> -/* Define to 1 if you have the `xmlParseChunk' function. */
> -#undef HAVE_SAX_XML_PARSER
> -
> /* Define to 1 if you have the `setstate_r' function. */
> #undef HAVE_SETSTATE_R
>
> --- libgcobol/Makefile.in.jj 2026-02-13 10:32:21.503992411 +0100
> +++ libgcobol/Makefile.in 2026-02-13 12:54:56.534641774 +0100
> @@ -312,6 +312,8 @@ LIBQUADLIB_DEP = @LIBQUADLIB_DEP@
> LIBQUADSPEC = @LIBQUADSPEC@
> LIBS = @LIBS@
> LIBTOOL = @LIBTOOL@
> +LIBXML2_CPPFLAGS = @LIBXML2_CPPFLAGS@
> +LIBXML2_LIBS = @LIBXML2_LIBS@
> LIPO = @LIPO@
> LLVM_CONFIG = @LLVM_CONFIG@
> LN_S = @LN_S@
> @@ -454,8 +456,7 @@ gcc_version := $(shell @get_gcc_base_ver
>
> @BUILD_LIBGCOBOL_TRUE@WARN_CFLAGS = -W -Wall -Wwrite-strings
> @BUILD_LIBGCOBOL_TRUE@AM_CPPFLAGS = -I. -I posix/shim \
> -@BUILD_LIBGCOBOL_TRUE@ $(LIBQUADINCLUDE) -I \
> -@BUILD_LIBGCOBOL_TRUE@ /usr/include/libxml2
> +@BUILD_LIBGCOBOL_TRUE@ $(LIBQUADINCLUDE) $(LIBXML2_CPPFLAGS)
> @BUILD_LIBGCOBOL_TRUE@AM_CFLAGS = $(XCFLAGS)
> @BUILD_LIBGCOBOL_TRUE@AM_CXXFLAGS = $(XCFLAGS) $(WARN_CFLAGS) \
> @BUILD_LIBGCOBOL_TRUE@ -DIN_TARGET_LIBS -fstrict-aliasing \
> @@ -465,7 +466,7 @@ gcc_version := $(shell @get_gcc_base_ver
> @BUILD_LIBGCOBOL_TRUE@libgcobol_la_LINK = $(CXXLINK) $(libgcobol_la_LDFLAGS)
> @BUILD_LIBGCOBOL_TRUE@version_arg = -version-info $(LIBGCOBOL_VERSION)
> @BUILD_LIBGCOBOL_TRUE@libgcobol_la_LDFLAGS = $(LTLDFLAGS) $(LIBQUADLIB)
> $(LTLIBICONV) \
> -@BUILD_LIBGCOBOL_TRUE@ $(extra_ldflags_libgcobol) $(LIBS) $(version_arg)
> +@BUILD_LIBGCOBOL_TRUE@ $(extra_ldflags_libgcobol) $(LIBS) $(LIBXML2_LIBS)
> $(version_arg)
>
> @BUILD_LIBGCOBOL_TRUE@libgcobol_la_DEPENDENCIES = libgcobol.spec
> $(LIBQUADLIB_DEP)
> all: config.h
> --- gcc/doc/install.texi.jj 2026-01-31 10:16:31.970164455 +0100
> +++ gcc/doc/install.texi 2026-02-13 13:04:57.409374772 +0100
> @@ -3063,6 +3063,31 @@ to be available for each multilib varian
> @samp{zlib} is only used when the system installed library is not available.
> @end table
>
> +@subheading COBOL-Specific Options
> +
> +The following options apply to the build of the COBOL runtime library.
> +
> +@table @code
> +@item --with-target-libxml2=@var{list}
> +@itemx --with-target-libxml2-include=@var{list}
> +@itemx --with-target-libxml2-lib=@var{list}
> +Specify search directories for the libxml2 header files and
> +libraries. @var{list} is a comma separated list of key value pairs of the
> +form @samp{@var{multilibdir}=@var{path}}, where the default multilib key
> +is named as @samp{.} (dot), or is omitted (e.g.@:
> +@samp{--with-target-libxml2=/opt/libxml2,32=/opt-libxml2-32}).
> +
> +The options @option{--with-target-libxml2-include} and
> +@option{--with-target-libxml2-lib} must always be specified together
> +for each multilib variant and they take precedence over
> +@option{--with-target-libxml2}. If @option{--with-target-libxml2-include}
> +is missing values for a multilib, then the value for the default
> +multilib is used (e.g.@:
> @samp{--with-target-libxml2-include=/opt/libxml2/include}
> +@samp{--with-target-libxml2-lib=/opt/libxml2/lib64,32=/opt-libxml2/lib32}).
> +If none of these options are specified, the library is assumed in
> +default locations.
> +@end table
> +
> @html
> <hr />
> <p>
>
> Jakub
>
