diff options
Diffstat (limited to 'projects/sample/autoconf/m4/link_options.m4')
-rw-r--r-- | projects/sample/autoconf/m4/link_options.m4 | 109 |
1 files changed, 0 insertions, 109 deletions
diff --git a/projects/sample/autoconf/m4/link_options.m4 b/projects/sample/autoconf/m4/link_options.m4 deleted file mode 100644 index b58d61745f9..00000000000 --- a/projects/sample/autoconf/m4/link_options.m4 +++ /dev/null @@ -1,109 +0,0 @@ -# -# Get the linker version string. -# -# This macro is specific to LLVM. -# -AC_DEFUN([AC_LINK_GET_VERSION], - [AC_CACHE_CHECK([for linker version],[llvm_cv_link_version], - [ - version_string="$(ld -v 2>&1 | head -1)" - - # Check for ld64. - if (echo "$version_string" | grep -q "ld64"); then - llvm_cv_link_version=$(echo "$version_string" | sed -e "s#.*ld64-\([^ ]*\)\( (.*)\)\{0,1\}#\1#") - else - llvm_cv_link_version=$(echo "$version_string" | sed -e "s#[^0-9]*\([0-9.]*\).*#\1#") - fi - ]) - AC_DEFINE_UNQUOTED([HOST_LINK_VERSION],"$llvm_cv_link_version", - [Linker version detected at compile time.]) -]) - -# -# Determine if the system can handle the -R option being passed to the linker. -# -# This macro is specific to LLVM. -# -AC_DEFUN([AC_LINK_USE_R], -[AC_CACHE_CHECK([for compiler -Wl,-R<path> option],[llvm_cv_link_use_r], -[ AC_LANG_PUSH([C]) - oldcflags="$CFLAGS" - CFLAGS="$CFLAGS -Wl,-R." - AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],[[]])], - [llvm_cv_link_use_r=yes],[llvm_cv_link_use_r=no]) - CFLAGS="$oldcflags" - AC_LANG_POP([C]) -]) -if test "$llvm_cv_link_use_r" = yes ; then - AC_DEFINE([HAVE_LINK_R],[1],[Define if you can use -Wl,-R. to pass -R. to the linker, in order to add the current directory to the dynamic linker search path.]) - fi -]) - -# -# Determine if the system can handle the -rdynamic option being passed -# to the compiler. -# -# This macro is specific to LLVM. -# -AC_DEFUN([AC_LINK_EXPORT_DYNAMIC], -[AC_CACHE_CHECK([for compiler -rdynamic option], - [llvm_cv_link_use_export_dynamic], -[ AC_LANG_PUSH([C]) - oldcflags="$CFLAGS" - CFLAGS="$CFLAGS -rdynamic" - AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],[[]])], - [llvm_cv_link_use_export_dynamic=yes],[llvm_cv_link_use_export_dynamic=no]) - CFLAGS="$oldcflags" - AC_LANG_POP([C]) -]) -if test "$llvm_cv_link_use_export_dynamic" = yes ; then - AC_DEFINE([HAVE_LINK_EXPORT_DYNAMIC],[1],[Define if you can use -rdynamic.]) - fi -]) - -# -# Determine if the system can handle the --version-script option being -# passed to the linker. -# -# This macro is specific to LLVM. -# -AC_DEFUN([AC_LINK_VERSION_SCRIPT], -[AC_CACHE_CHECK([for compiler -Wl,--version-script option], - [llvm_cv_link_use_version_script], -[ AC_LANG_PUSH([C]) - oldcflags="$CFLAGS" - - # The following code is from the autoconf manual, - # "11.13: Limitations of Usual Tools". - # Create a temporary directory $tmp in $TMPDIR (default /tmp). - # Use mktemp if possible; otherwise fall back on mkdir, - # with $RANDOM to make collisions less likely. - : ${TMPDIR=/tmp} - { - tmp=` - (umask 077 && mktemp -d "$TMPDIR/fooXXXXXX") 2>/dev/null - ` && - test -n "$tmp" && test -d "$tmp" - } || { - tmp=$TMPDIR/foo$$-$RANDOM - (umask 077 && mkdir "$tmp") - } || exit $? - - echo "{" > "$tmp/export.map" - echo " global: main;" >> "$tmp/export.map" - echo " local: *;" >> "$tmp/export.map" - echo "};" >> "$tmp/export.map" - - CFLAGS="$CFLAGS -Wl,--version-script=$tmp/export.map" - AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],[[]])], - [llvm_cv_link_use_version_script=yes],[llvm_cv_link_use_version_script=no]) - rm "$tmp/export.map" - rmdir "$tmp" - CFLAGS="$oldcflags" - AC_LANG_POP([C]) -]) -if test "$llvm_cv_link_use_version_script" = yes ; then - AC_SUBST(HAVE_LINK_VERSION_SCRIPT,1) - fi -]) - |