autotools: stop controlling symbol visibility with -export-symbols-regex

Instead, use -fvisibility=hidden and explicit exports via GST_EXPORT.
This should result in consistent behaviour for the autotools and
Meson builds.

diff --git a/configure.ac b/configure.ac
index 5431c6a..fdf2ba4 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -346,6 +346,16 @@ else
 fi
 AC_SUBST(DEPRECATED_CFLAGS)
 
+VISIBILITY_CFLAGS=""
+AS_COMPILER_FLAG([-fvisibility=hidden], [VISIBILITY_CFLAGS="-fvisibility=hidden"])
+AC_SUBST(VISIBILITY_CFLAGS)
+
+VISIBILITY_CXXFLAGS=""
+if test "x$HAVE_CXX" = "xyes"; then
+  AS_CXX_COMPILER_FLAG([-fvisibility=hidden], [VISIBILITY_CXXFLAGS="-fvisibility=hidden"])
+fi
+AC_SUBST(VISIBILITY_CXXFLAGS)
+
 dnl every flag in GST_OPTION_CFLAGS and GST_OPTION_CXXFLAGS can be overridden
 dnl at make time with e.g. make ERROR_CFLAGS=""
 GST_OPTION_CFLAGS="\$(WARNING_CFLAGS) \$(ERROR_CFLAGS) \$(DEBUG_CFLAGS) \$(PROFILE_CFLAGS) \$(GCOV_CFLAGS) \$(OPT_CFLAGS) \$(DEPRECATED_CFLAGS)"
@@ -374,7 +384,7 @@ AC_SUBST(GST_ALL_LDFLAGS)
 
 dnl this really should only contain flags, not libs - they get added before
 dnl whatevertarget_LIBS and -L flags here affect the rest of the linking
-GST_PLUGIN_LDFLAGS="-module -avoid-version -export-symbols-regex '^[_]*gst_plugin_.*' $GST_ALL_LDFLAGS"
+GST_PLUGIN_LDFLAGS="-module -avoid-version $GST_ALL_LDFLAGS"
 AC_SUBST(GST_PLUGIN_LDFLAGS)
 
 dnl *** output files ***