diff options
| author | Daniel Dunbar <daniel@zuster.org> | 2008-09-02 17:35:16 +0000 |
|---|---|---|
| committer | Daniel Dunbar <daniel@zuster.org> | 2008-09-02 17:35:16 +0000 |
| commit | ecfe67c21799891f27597455ed84c70de7769f36 (patch) | |
| tree | 2ce9b63ff7b9c78a52b153a94b6136609a75f825 /autoconf | |
| parent | 5b8dbf839ba8f586e2823744dc695acf57480c5f (diff) | |
| download | llvm-ecfe67c21799891f27597455ed84c70de7769f36.tar.gz llvm-ecfe67c21799891f27597455ed84c70de7769f36.tar.bz2 llvm-ecfe67c21799891f27597455ed84c70de7769f36.tar.xz | |
Reapply majority of r55557 but with the changes to compilation flags
disabled until issues with gcc 4.1 on linux 32-bit are resolved.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55636 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'autoconf')
| -rw-r--r-- | autoconf/configure.ac | 2 | ||||
| -rw-r--r-- | autoconf/m4/visibility_inlines_hidden.m4 | 22 |
2 files changed, 24 insertions, 0 deletions
diff --git a/autoconf/configure.ac b/autoconf/configure.ac index ca160d163a..35d017e1bd 100644 --- a/autoconf/configure.ac +++ b/autoconf/configure.ac @@ -975,6 +975,8 @@ if test "$binding_prereqs_failed" = 1 ; then AC_MSG_ERROR([Prequisites for bindings not satisfied. Fix them or use configure --disable-bindings.]) fi +dnl Determine if the compiler supports -fvisibility-inlines-hidden. +AC_CXX_USE_VISIBILITY_INLINES_HIDDEN dnl===-----------------------------------------------------------------------=== dnl=== diff --git a/autoconf/m4/visibility_inlines_hidden.m4 b/autoconf/m4/visibility_inlines_hidden.m4 new file mode 100644 index 0000000000..42ddbe9128 --- /dev/null +++ b/autoconf/m4/visibility_inlines_hidden.m4 @@ -0,0 +1,22 @@ +# +# Determine if the compiler accepts -fvisibility-inlines-hidden +# +# This macro is specific to LLVM. +# +AC_DEFUN([AC_CXX_USE_VISIBILITY_INLINES_HIDDEN], +[AC_CACHE_CHECK([for compiler -fvisibility-inlines-hidden option], + [llvm_cv_cxx_visibility_inlines_hidden], +[ AC_LANG_PUSH([C++]) + oldcxxflags="$CXXFLAGS" + CXXFLAGS="$CXXFLAGS -fvisibility-inlines-hidden" + AC_COMPILE_IFELSE([AC_LANG_PROGRAM()], + [llvm_cv_cxx_visibility_inlines_hidden=yes],[llvm_cv_cxx_visibility_inlines_hidden=no]) + CXXFLAGS="$oldcxxflags" + AC_LANG_POP([C++]) +]) +if test "$llvm_cv_cxx_visibility_inlines_hidden" = yes ; then + AC_SUBST([ENABLE_VISIBILITY_INLINES_HIDDEN],[1]) +else + AC_SUBST([ENABLE_VISIBILITY_INLINES_HIDDEN],[0]) +fi +]) |