Attachment "visibility_hidden.patch" to
ticket [2959069fff]
added by
nijtmans
2010-03-03 06:55:29.
Index: tcl.m4
===================================================================
RCS file: /cvsroot/tcl/tcl/unix/tcl.m4,v
retrieving revision 1.221
diff -c -r1.221 tcl.m4
*** tcl.m4 2 Mar 2010 23:51:11 -0000 1.221
--- tcl.m4 2 Mar 2010 23:39:33 -0000 1.222
***************
*** 1052,1067 ****
AC_CACHE_CHECK([if compiler supports visibility "hidden"],
tcl_cv_cc_visibility_hidden, [
hold_cflags=$CFLAGS; CFLAGS="$CFLAGS -Werror"
AC_TRY_LINK([
extern __attribute__((__visibility__("hidden"))) void f(void);
void f(void) {}], [f();], tcl_cv_cc_visibility_hidden=yes,
tcl_cv_cc_visibility_hidden=no)
! CFLAGS=$hold_cflags])
! AS_IF([test $tcl_cv_cc_visibility_hidden = yes], [
! AC_DEFINE(MODULE_SCOPE,
! [extern __attribute__((__visibility__("hidden")))],
! [Compiler support for module scope symbols])
])
# Step 0.d: Disable -rpath support?
--- 1052,1075 ----
AC_CACHE_CHECK([if compiler supports visibility "hidden"],
tcl_cv_cc_visibility_hidden, [
- hold_cflags=$CFLAGS; CFLAGS="$CFLAGS -fvisibility=hidden"
- AC_TRY_COMPILE(,, tcl_cv_cc_visibility_hidden=yes,
- tcl_cv_cc_visibility_hidden=no)
- CFLAGS=$hold_cflags])
- AS_IF([test $tcl_cv_cc_visibility_hidden = yes], [
- CFLAGS="$CFLAGS -fvisibility=hidden"
- ], [
hold_cflags=$CFLAGS; CFLAGS="$CFLAGS -Werror"
AC_TRY_LINK([
extern __attribute__((__visibility__("hidden"))) void f(void);
void f(void) {}], [f();], tcl_cv_cc_visibility_hidden=yes,
tcl_cv_cc_visibility_hidden=no)
! CFLAGS=$hold_cflags
! AS_IF([test $tcl_cv_cc_visibility_hidden = yes], [
! AC_DEFINE(MODULE_SCOPE,
! [extern __attribute__((__visibility__("hidden")))],
! [Compiler support for module scope symbols])
! ])
])
# Step 0.d: Disable -rpath support?
