| dnl dolt, a replacement for libtool |
| dnl Copyright © 2007-2010 Josh Triplett <josh@joshtriplett.org> |
| dnl Copying and distribution of this file, with or without modification, |
| dnl are permitted in any medium without royalty provided the copyright |
| dnl notice and this notice are preserved. |
| dnl |
| dnl To use dolt, invoke the DOLT macro immediately after the libtool macros. |
| dnl Optionally, copy this file into acinclude.m4, to avoid the need to have it |
| dnl installed when running autoconf on your project. |
| |
| AC_DEFUN([DOLT], [ |
| AC_REQUIRE([AC_CANONICAL_HOST]) |
| # dolt, a replacement for libtool |
| # Josh Triplett <josh@freedesktop.org> |
| AC_PATH_PROG([DOLT_BASH], [bash]) |
| AC_MSG_CHECKING([if dolt supports this host]) |
| dolt_supported=yes |
| AS_IF([test x$DOLT_BASH = x], [dolt_supported=no]) |
| AS_IF([test x$GCC != xyes], [dolt_supported=no]) |
| |
| AS_CASE([$host], |
| [*-*-linux*|*-*-freebsd*], [pic_options='-fPIC'], |
| [*-apple-darwin*], [pic_options='-fno-common'], |
| [*mingw*|*nacl*], [pic_options=''] |
| [*], [dolt_supported=no] |
| ) |
| AS_IF([test x$dolt_supported = xno], [ |
| AC_MSG_RESULT([no, falling back to libtool]) |
| LTCOMPILE='$(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(COMPILE)' |
| LTCXXCOMPILE='$(LIBTOOL) $(AM_V_lt) --tag=CXX $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CXXCOMPILE)' |
| m4_pattern_allow([AM_V_lt]) |
| ], [ |
| AC_MSG_RESULT([yes, replacing libtool]) |
| |
| dnl Start writing out doltcompile. |
| cat <<__DOLTCOMPILE__EOF__ >doltcompile |
| #!$DOLT_BASH |
| __DOLTCOMPILE__EOF__ |
| cat <<'__DOLTCOMPILE__EOF__' >>doltcompile |
| args=("$[]@") |
| for ((arg=0; arg<${#args@<:@@@:>@}; arg++)) ; do |
| if test x"${args@<:@$arg@:>@}" = x-o ; then |
| objarg=$((arg+1)) |
| break |
| fi |
| done |
| if test x$objarg = x ; then |
| echo 'Error: no -o on compiler command line' 1>&2 |
| exit 1 |
| fi |
| lo="${args@<:@$objarg@:>@}" |
| obj="${lo%.lo}" |
| if test x"$lo" = x"$obj" ; then |
| echo "Error: libtool object file name \"$lo\" does not end in .lo" 1>&2 |
| exit 1 |
| fi |
| objbase="${obj##*/}" |
| __DOLTCOMPILE__EOF__ |
| |
| dnl Write out shared compilation code. |
| if test x$enable_shared = xyes; then |
| cat <<'__DOLTCOMPILE__EOF__' >>doltcompile |
| libobjdir="${obj%$objbase}.libs" |
| if test ! -d "$libobjdir" ; then |
| mkdir_out="$(mkdir "$libobjdir" 2>&1)" |
| mkdir_ret=$? |
| if test "$mkdir_ret" -ne 0 && test ! -d "$libobjdir" ; then |
| echo "$mkdir_out" 1>&2 |
| exit $mkdir_ret |
| fi |
| fi |
| pic_object="$libobjdir/$objbase.o" |
| args@<:@$objarg@:>@="$pic_object" |
| __DOLTCOMPILE__EOF__ |
| cat <<__DOLTCOMPILE__EOF__ >>doltcompile |
| "\${args@<:@@@:>@}" $pic_options -DPIC || exit \$? |
| __DOLTCOMPILE__EOF__ |
| fi |
| |
| dnl Write out static compilation code. |
| dnl Avoid duplicate compiler output if also building shared objects. |
| if test x$enable_static = xyes; then |
| cat <<'__DOLTCOMPILE__EOF__' >>doltcompile |
| non_pic_object="$obj.o" |
| args@<:@$objarg@:>@="$non_pic_object" |
| __DOLTCOMPILE__EOF__ |
| if test x$enable_shared = xyes; then |
| cat <<'__DOLTCOMPILE__EOF__' >>doltcompile |
| "${args@<:@@@:>@}" >/dev/null 2>&1 || exit $? |
| __DOLTCOMPILE__EOF__ |
| else |
| cat <<'__DOLTCOMPILE__EOF__' >>doltcompile |
| "${args@<:@@@:>@}" || exit $? |
| __DOLTCOMPILE__EOF__ |
| fi |
| fi |
| |
| dnl Write out the code to write the .lo file. |
| dnl The second line of the .lo file must match "^# Generated by .*libtool" |
| cat <<'__DOLTCOMPILE__EOF__' >>doltcompile |
| { |
| echo "# $lo - a libtool object file" |
| echo "# Generated by doltcompile, not libtool" |
| __DOLTCOMPILE__EOF__ |
| |
| if test x$enable_shared = xyes; then |
| cat <<'__DOLTCOMPILE__EOF__' >>doltcompile |
| echo "pic_object='.libs/${objbase}.o'" |
| __DOLTCOMPILE__EOF__ |
| else |
| cat <<'__DOLTCOMPILE__EOF__' >>doltcompile |
| echo pic_object=none |
| __DOLTCOMPILE__EOF__ |
| fi |
| |
| if test x$enable_static = xyes; then |
| cat <<'__DOLTCOMPILE__EOF__' >>doltcompile |
| echo "non_pic_object='${objbase}.o'" |
| __DOLTCOMPILE__EOF__ |
| else |
| cat <<'__DOLTCOMPILE__EOF__' >>doltcompile |
| echo non_pic_object=none |
| __DOLTCOMPILE__EOF__ |
| fi |
| |
| cat <<'__DOLTCOMPILE__EOF__' >>doltcompile |
| } > "$lo" |
| __DOLTCOMPILE__EOF__ |
| |
| dnl Done writing out doltcompile; substitute it for libtool compilation. |
| chmod +x doltcompile |
| LTCOMPILE='$(top_builddir)/doltcompile $(COMPILE)' |
| LTCXXCOMPILE='$(top_builddir)/doltcompile $(CXXCOMPILE)' |
| |
| dnl automake ignores LTCOMPILE and LTCXXCOMPILE when it has separate CFLAGS for |
| dnl a target, so write out a libtool wrapper to handle that case. |
| dnl Note that doltlibtool does not handle inferred tags or option arguments |
| dnl without '=', because automake does not use them. |
| cat <<__DOLTLIBTOOL__EOF__ > doltlibtool |
| #!$DOLT_BASH |
| __DOLTLIBTOOL__EOF__ |
| cat <<'__DOLTLIBTOOL__EOF__' >>doltlibtool |
| top_builddir_slash="${0%%doltlibtool}" |
| : ${top_builddir_slash:=./} |
| args=() |
| modeok=false |
| tagok=false |
| for arg in "$[]@"; do |
| case "$arg" in |
| --mode=compile) modeok=true ;; |
| --tag=CC|--tag=CXX) tagok=true ;; |
| --silent|--quiet) ;; |
| *) args@<:@${#args[@]}@:>@="$arg" ;; |
| esac |
| done |
| if $modeok && $tagok ; then |
| . ${top_builddir_slash}doltcompile "${args@<:@@@:>@}" |
| else |
| exec ${top_builddir_slash}libtool "$[]@" |
| fi |
| __DOLTLIBTOOL__EOF__ |
| |
| dnl Done writing out doltlibtool; substitute it for libtool. |
| chmod +x doltlibtool |
| LIBTOOL='$(top_builddir)/doltlibtool' |
| |
| DOLT_CLEANFILES="doltlibtool doltcompile" |
| AC_SUBST(DOLT_CLEANFILES) |
| ]) |
| AC_SUBST(LTCOMPILE) |
| AC_SUBST(LTCXXCOMPILE) |
| # end dolt |
| ]) |