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| author | Dmitry Eremin-Solenikov <dmitry.ereminsolenikov@linaro.org> | 2017-10-02 06:30:55 +0300 |
|---|---|---|
| committer | Maxim Uvarov <maxim.uvarov@linaro.org> | 2017-10-16 21:50:18 +0300 |
| commit | e02f5545f97f90a75f2595bb1e9068f64bff133e (patch) | |
| tree | 8f3f58e5e81fd439302bc228b061ac061338e5e7 /m4 | |
| parent | d0d0bd9787ee43db39ad4e7e9b224e70664d5663 (diff) | |
m4: move -fvisibility=hidden check to separate file
Signed-off-by: Dmitry Eremin-Solenikov <dmitry.ereminsolenikov@linaro.org>
Reviewed-by: Bill Fischofer <bill.fischofer@linaro.org>
Signed-off-by: Maxim Uvarov <maxim.uvarov@linaro.org>
Diffstat (limited to 'm4')
| -rw-r--r-- | m4/odp_visibility.m4 | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/m4/odp_visibility.m4 b/m4/odp_visibility.m4 new file mode 100644 index 000000000..955971f3c --- /dev/null +++ b/m4/odp_visibility.m4 @@ -0,0 +1,21 @@ +# ODP_VISIBILITY +# -------------- +# Enable -fvisibility=hidden if using a gcc that supports it + +AC_DEFUN([ODP_VISIBILITY], [dnl +VISIBILITY_CFLAGS="-fvisibility=hidden" +AC_CACHE_CHECK([whether $CC supports -fvisibility=hidden], + [odp_cv_visibility_hidden], [dnl +OLD_CFLAGS="$CFLAGS" +CFLAGS="$CFLAGS $VISIBILITY_CFLAGS" +AC_LINK_IFELSE([AC_LANG_PROGRAM()], [odp_cv_visibility_hidden=yes], + [odp_cv_visibility_hidden=no]) +CFLAGS=$OLD_CFLAGS +]) + +if test "x$odp_cv_visibility_hidden" != "xyes" ; then + VISIBILITY_CFLAGS="" +fi + +AC_SUBST(VISIBILITY_CFLAGS) +]) # ODP_VISIBILITY |