diff options
Diffstat (limited to 'config/acx.m4')
| -rw-r--r-- | config/acx.m4 | 169 |
1 files changed, 155 insertions, 14 deletions
diff --git a/config/acx.m4 b/config/acx.m4 index c71f39b..9f0dd1e 100644 --- a/config/acx.m4 +++ b/config/acx.m4 @@ -104,7 +104,7 @@ test -n "$target_alias" && ncn_target_tool_prefix=$target_alias- #### # NCN_STRICT_CHECK_TOOLS(variable, progs-to-check-for,[value-if-not-found],[path]) -# Like plain AC_CHECK_TOOLS, but require prefix if build!=target. +# Like plain AC_CHECK_TOOLS, but require prefix if build!=host. AC_DEFUN([NCN_STRICT_CHECK_TOOLS], [AC_REQUIRE([_NCN_TOOL_PREFIXES]) []dnl @@ -135,17 +135,32 @@ fi AC_DEFUN([NCN_STRICT_CHECK_TARGET_TOOLS], [AC_REQUIRE([_NCN_TOOL_PREFIXES]) []dnl -for ncn_progname in $2; do - if test -n "$ncn_target_tool_prefix"; then - AC_CHECK_PROG([$1], [${ncn_target_tool_prefix}${ncn_progname}], - [${ncn_target_tool_prefix}${ncn_progname}], , [$4]) - fi - if test -z "$ac_cv_prog_$1" && test $build = $target ; then - AC_CHECK_PROG([$1], [${ncn_progname}], [${ncn_progname}], , [$4]) - fi - test -n "$ac_cv_prog_$1" && break -done +if test -n "$with_build_time_tools"; then + for ncn_progname in $2; do + AC_MSG_CHECKING([for ${ncn_progname} in $with_build_time_tools]) + if test -x $with_build_time_tools/$1; then + ac_cv_prog_$1=$with_build_time_tools/$1 + AC_MSG_RESULT(yes) + break + else + AC_MSG_RESULT(no) + fi + done +fi +if test -z "$ac_cv_prog_$1"; then + for ncn_progname in $2; do + if test -n "$ncn_target_tool_prefix"; then + AC_CHECK_PROG([$1], [${ncn_target_tool_prefix}${ncn_progname}], + [${ncn_target_tool_prefix}${ncn_progname}], , [$4]) + fi + if test -z "$ac_cv_prog_$1" && test $build = $target ; then + AC_CHECK_PROG([$1], [${ncn_progname}], [${ncn_progname}], , [$4]) + fi + test -n "$ac_cv_prog_$1" && break + done +fi + if test -z "$ac_cv_prog_$1" ; then ifelse([$3],[], [set dummy $2 if test $build = $target ; then @@ -155,6 +170,124 @@ if test -z "$ac_cv_prog_$1" ; then fi], [$1="$3"]) fi ]) []dnl # NCN_STRICT_CHECK_TARGET_TOOLS + + +# Backported from Autoconf 2.5x; can go away when and if +# we switch. Put the OS path separator in $PATH_SEPARATOR. +AC_DEFUN([ACX_PATH_SEP], [ +# The user is always right. +if test "${PATH_SEPARATOR+set}" != set; then + echo "#! /bin/sh" >conf$$.sh + echo "exit 0" >>conf$$.sh + chmod +x conf$$.sh + if (PATH="/nonexistent;."; conf$$.sh) >/dev/null 2>&1; then + PATH_SEPARATOR=';' + else + PATH_SEPARATOR=: + fi + rm -f conf$$.sh +fi +]) + + +AC_DEFUN([ACX_TOOL_DIRS], [ +AC_REQUIRE([ACX_PATH_SEP]) +if test "x$exec_prefix" = xNONE; then + if test "x$prefix" = xNONE; then + gcc_cv_tool_prefix=$ac_default_prefix + else + gcc_cv_tool_prefix=$prefix + fi +else + gcc_cv_tool_prefix=$exec_prefix +fi + +# If there is no compiler in the tree, use the PATH only. In any +# case, if there is no compiler in the tree nobody should use +# AS_FOR_TARGET and LD_FOR_TARGET. +if test x$host = x$build && test -f $srcdir/gcc/BASE-VER; then + gcc_version=`cat $srcdir/gcc/BASE-VER` + gcc_cv_tool_dirs="$gcc_cv_tool_prefix/libexec/gcc/$target_noncanonical/$gcc_version$PATH_SEPARATOR" + gcc_cv_tool_dirs="$gcc_cv_tool_dirs$gcc_cv_tool_prefix/libexec/gcc/$target_noncanonical$PATH_SEPARATOR" + gcc_cv_tool_dirs="$gcc_cv_tool_dirs/usr/lib/gcc/$target_noncanonical/$gcc_version$PATH_SEPARATOR" + gcc_cv_tool_dirs="$gcc_cv_tool_dirs/usr/lib/gcc/$target_noncanonical$PATH_SEPARATOR" + gcc_cv_tool_dirs="$gcc_cv_tool_dirs$gcc_cv_tool_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version$PATH_SEPARATOR" + gcc_cv_tool_dirs="$gcc_cv_tool_dirs$gcc_cv_tool_prefix/$target_noncanonical/bin$PATH_SEPARATOR" +else + gcc_cv_tool_dirs= +fi + +if test x$build = x$target && test -n "$md_exec_prefix"; then + gcc_cv_tool_dirs="$gcc_cv_tool_dirs$md_exec_prefix$PATH_SEPARATOR" +fi + +]) []dnl # ACX_TOOL_DIRS + +# ACX_HAVE_GCC_FOR_TARGET +# Check if the variable GCC_FOR_TARGET really points to a GCC binary. +AC_DEFUN([ACX_HAVE_GCC_FOR_TARGET], [ +cat > conftest.c << \EOF +#ifdef __GNUC__ + gcc_yay; +#endif +EOF +if ($GCC_FOR_TARGET -E conftest.c | grep gcc_yay) > /dev/null 2>&1; then + have_gcc_for_target=yes +else + GCC_FOR_TARGET=${ncn_target_tool_prefix}gcc + have_gcc_for_target=no +fi +rm conftest.c +]) + +# ACX_CHECK_INSTALLED_TARGET_TOOL(VAR, PROG) +# Searching for installed target binutils. We need to take extra care, +# else we may find the wrong assembler, linker, etc., and lose. +# +# First try --with-build-time-tools, if specified. +# +# For build != host, we ask the installed GCC for the name of the tool it +# uses, and accept it if it is an absolute path. This is because the +# only good choice for a compiler is the same GCC version that is being +# installed (or we couldn't make target libraries), and we assume that +# on the host system we'll have not only the same GCC version, but also +# the same binutils version. +# +# For build == host, search the same directories that the installed +# compiler will search. We used to do this for the assembler, linker, +# and nm only; for simplicity of configuration, however, we extend this +# criterion to tools (such as ar and ranlib) that are never invoked by +# the compiler, to avoid mismatches. +# +# Also note we have to check MD_EXEC_PREFIX before checking the user's path +# if build == target. This makes the most sense only when bootstrapping, +# but we also do so when build != host. In this case, we hope that the +# build and host systems will have similar contents of MD_EXEC_PREFIX. +# +# If we do not find a suitable binary, then try the user's path. + +AC_DEFUN([ACX_CHECK_INSTALLED_TARGET_TOOL], [ +AC_REQUIRE([ACX_TOOL_DIRS]) +AC_REQUIRE([ACX_HAVE_GCC_FOR_TARGET]) +if test -z "$ac_cv_path_$1" ; then + if test -n "$with_build_time_tools"; then + AC_MSG_CHECKING([for ${ncn_target_tool_prefix}${ncn_progname} in $with_build_time_tools]) + $1=`cd $with_build_time_tools && pwd`/$1 + ac_cv_path_$1=[$]$1 + AC_MSG_RESULT([$ac_cv_path_$1]) + elif test $build != $host && test $have_gcc_for_target = yes; then + $1=`$GCC_FOR_TARGET --print-prog-name=$2` + test [$]$1=$2 && $1= + ac_cv_path_$1=[$]$1 + fi +fi +if test -z "$ac_cv_path_$1" ; then + AC_PATH_PROG([$1], [$2], [], [$gcc_cv_tool_dirs]) +fi +if test -z "$ac_cv_path_$1" ; then + NCN_STRICT_CHECK_TARGET_TOOLS([$1], [$2]) +fi +]) []dnl # ACX_CHECK_INSTALLED_TARGET_TOOL ### # AC_PROG_CPP_WERROR @@ -300,8 +433,13 @@ dnl GCC_TARGET_TOOL(PROGRAM, TARGET-VAR, HOST-VAR, IN-TREE-TOOL, LANGUAGE) AC_DEFUN([GCC_TARGET_TOOL], [AC_MSG_CHECKING(where to find the target $1) if test "x${build}" != "x${host}" ; then - # Canadian cross, just use what we found - AC_MSG_RESULT(pre-installed) + if expr "x[$]$2" : "x/" > /dev/null; then + # We already found the complete path + AC_MSG_RESULT(pre-installed in `dirname [$]$2`) + else + # Canadian cross, just use what we found + AC_MSG_RESULT(pre-installed) + fi else ifelse([$4],,, [ok=yes @@ -318,7 +456,10 @@ else # An in-tree tool is available and we can use it $2='$$r/$(HOST_SUBDIR)/$4' AC_MSG_RESULT(just compiled) - el])if test "x$target" = "x$host"; then + el])if expr "x[$]$2" : "x/" > /dev/null; then + # We already found the complete path + AC_MSG_RESULT(pre-installed in `dirname [$]$2`) + elif test "x$target" = "x$host"; then # We can use an host tool $2='$($3)' AC_MSG_RESULT(host tool) |