diff options
| author | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2010-09-25 01:30:52 +0000 |
|---|---|---|
| committer | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2010-09-25 01:30:52 +0000 |
| commit | bab83d26280b3eb5cc563012e8ef603b96f26edf (patch) | |
| tree | b37c0c8886968daafce081c629627c660907878c /configure.in | |
| parent | 4fd8930898802ea8c34a280f71b7bcfdb7560ac4 (diff) | |
* configure.in (LIBRUBY_DLDFLAGS): use -unexported_symbol only
when available. http://trac.macports.org/ticket/26341
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@29341 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'configure.in')
| -rw-r--r-- | configure.in | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/configure.in b/configure.in index fe6f09c0ae..623fa6decf 100644 --- a/configure.in +++ b/configure.in @@ -302,7 +302,7 @@ AC_CHECK_TOOL(AS, as) ASFLAGS=$ASFLAGS AC_SUBST(ASFLAGS) -AS_CASE(["$target_os"],[cygwin*|mingw*|darwin*], [ac_cv_prog_ac_ct_OBJCOPY=":"]) +AS_CASE(["$target_os"],[cygwin*|mingw*], [ac_cv_prog_ac_ct_OBJCOPY=":"]) # BSD's ports and MacPorts prefix GNU binutils with 'g' AC_CHECK_TOOLS(OBJDUMP, [objdump gobjdump]) @@ -419,6 +419,21 @@ AC_DEFUN(RUBY_TRY_CFLAGS, [ save_CFLAGS= ]) +AC_DEFUN(RUBY_TRY_LDFLAGS, [ + save_LDFLAGS="$LDFLAGS" + LDFLAGS="[$]LDFLAGS $1" + AC_MSG_CHECKING([whether ]$1[ is accepted]) + RUBY_WERROR_FLAG([ + AC_TRY_LINK([$4], [$5], + [$2 + AC_MSG_RESULT(yes)], + [$3 + AC_MSG_RESULT(no)]) + ]) + LDFLAGS="$save_LDFLAGS" + save_LDFLAGS= +]) + if test "$GCC:${warnflags+set}:no" = yes::no; then for wflag in -Wno-unused-parameter -Wno-parentheses -Wpointer-arith -Wwrite-strings \ -Wno-missing-field-initializers -Wshorten-64-to-32 -Wno-long-long; do @@ -431,6 +446,14 @@ fi if test "$GCC" = yes; then RUBY_TRY_CFLAGS(-fvisibility=hidden, [RUBY_APPEND_OPTION(XCFLAGS, -fvisibility=hidden)]) fi +if test "$GCC" = yes; then + if test "$visibility_option" = yes; then + RUBY_APPEND_OPTION(XCFLAGS, -fvisibility=hidden) + else + RUBY_TRY_LDFLAGS(['-Wl,-unexported_symbol,_Init_*'], [visibility_option=ld], [visibility_option=no]) + fi + test "$visibility_option" = no || OBJCOPY=: +fi test -z "${ac_env_CFLAGS_set}" -a -n "${cflags+set}" && eval CFLAGS="\"$cflags $ARCH_FLAG\"" test -z "${ac_env_CXXFLAGS_set}" -a -n "${cxxflags+set}" && eval CXXFLAGS="\"$cxxflags $ARCH_FLAG\"" @@ -2180,6 +2203,10 @@ AS_CASE("$enable_shared", [yes], [ LIBRUBY_DLDFLAGS="$LIBRUBY_DLDFLAGS "'-install_name '${libprefix}'/$(LIBRUBY_SO)' LIBRUBY_DLDFLAGS="$LIBRUBY_DLDFLAGS "'-current_version $(MAJOR).$(MINOR).$(TEENY)' LIBRUBY_DLDFLAGS="$LIBRUBY_DLDFLAGS "'-compatibility_version $(ruby_version)' + if test "$visibility_option" = ld; then + LIBRUBY_DLDFLAGS="$LIBRUBY_DLDFLAGS "'-Wl,-unexported_symbol,_Init_*' + LIBRUBY_DLDFLAGS="$LIBRUBY_DLDFLAGS "'-Wl,-unexported_symbol,*_threadptr_*' + fi LIBRUBY_DLDFLAGS="$LIBRUBY_DLDFLAGS "' $(XLDFLAGS)' LIBRUBY_SO='lib$(RUBY_SO_NAME).dylib' LIBRUBY_ALIASES='lib$(RUBY_BASE_NAME).$(MAJOR).$(MINOR).dylib lib$(RUBY_INSTALL_NAME).dylib' |