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| author | Luboš Luňák <l.lunak@suse.cz> | 2012-03-10 15:55:51 +0100 |
|---|---|---|
| committer | Luboš Luňák <l.lunak@suse.cz> | 2012-03-10 16:39:23 +0100 |
| commit | 305cfc116ef2e7dd8630b8353c48b04c5316492c (patch) | |
| tree | 4e301a8727d58e5972ca3c065f233ff0dbb74dfc /configure.in | |
| parent | 91fc0f37c1e06ba2875f3f4ed1b02ac6e92aafcb (diff) | |
clang has broken -fvisibility-inlines-hidden
http://llvm.org/bugs/show_bug.cgi?id=11250 , comment #4
Diffstat (limited to 'configure.in')
| -rw-r--r-- | configure.in | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/configure.in b/configure.in index d9f8741a76f3..33109cac11ff 100644 --- a/configure.in +++ b/configure.in @@ -4482,6 +4482,35 @@ istringstream strm( "test" ); return 0; LDFLAGS=$sharedlink_ldflags_save fi + if test "$HAVE_GCC_VISIBILITY_FEATURE" = "TRUE" -a "$HAVE_GCC_VISIBILITY_BROKEN" != "TRUE"; then + AC_MSG_CHECKING([if gcc is -fvisibility-inlines-hidden safe (Clang bug 11250)]) + cat > conftestlib1.cc <<_ACEOF +template<typename T> struct S1 { virtual ~S1() {} virtual void f() {} }; +struct S2: S1<int> { virtual ~S2(); }; +S2::~S2() {} +_ACEOF + cat > conftestlib2.cc <<_ACEOF +template<typename T> struct S1 { virtual ~S1() {} virtual void f() {} }; +struct S2: S1<int> { virtual ~S2(); }; +struct S3: S2 { virtual ~S3(); }; S3::~S3() {} +_ACEOF + gccvisinlineshiddenok=yes + if ! $CXX $CXXFLAGS $CPPFLAGS -shared -fPIC -fvisibility-inlines-hidden conftestlib1.cc -o lib1.so >/dev/null 2>/dev/null; then + gccvisinlineshiddenok=no + else + if ! $CXX $CXXFLAGS $CPPFLAGS -shared -fPIC -fvisibility-inlines-hidden conftestlib2.cc -L. -l1 -Wl,-z,defs -o lib2.so >/dev/null 2>/dev/null ; then + gccvisinlineshiddenok=no + fi + fi + + AC_MSG_RESULT([$gccvisinlineshiddenok]) + if test "$gccvisinlineshiddenok" = "no"; then + AC_MSG_WARN([Your gcc/clang is not -fvisibility-inlines-hidden safe, disabling that.]) + echo "Your gcc/clang is not -fvisibility-inlines-hidden safe, disabling that." >> warn + HAVE_GCC_VISIBILITY_BROKEN="TRUE" + fi + fi + if test "$HAVE_GCC_VISIBILITY_FEATURE" = "TRUE"; then AC_MSG_CHECKING([if gcc has a visibility bug with class-level attributes (GCC bug 26905)]) cat >visibility.cxx <<_ACEOF |