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configure: Use -Bsymbolic-functions if available
While this is more useful for libraries, some of our plugins with multiple files and some internal API can also benefit from this.
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18
configure.ac
18
configure.ac
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@ -251,6 +251,21 @@ fi
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AM_CONDITIONAL(HAVE_GTK, test "x$HAVE_GTK" = "xyes")
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AM_CONDITIONAL(HAVE_GTK, test "x$HAVE_GTK" = "xyes")
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AM_CONDITIONAL(HAVE_GTK_X11, test "x$HAVE_GTK_X11" = "xyes")
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AM_CONDITIONAL(HAVE_GTK_X11, test "x$HAVE_GTK_X11" = "xyes")
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dnl Check for -Bsymbolic-functions linker flag used to avoid
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dnl intra-library PLT jumps, if available.
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AC_ARG_ENABLE(Bsymbolic,
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[AS_HELP_STRING([--disable-Bsymbolic],[avoid linking with -Bsymbolic])],,
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[SAVED_LDFLAGS="${LDFLAGS}" SAVED_LIBS="${LIBS}"
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AC_MSG_CHECKING([for -Bsymbolic-functions linker flag])
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LDFLAGS=-Wl,-Bsymbolic-functions
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LIBS=
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AC_TRY_LINK([], [return 0],
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AC_MSG_RESULT(yes)
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enable_Bsymbolic=yes,
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AC_MSG_RESULT(no)
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enable_Bsymbolic=no)
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LDFLAGS="${SAVED_LDFLAGS}" LIBS="${SAVED_LIBS}"])
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dnl *** set variables based on configure arguments ***
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dnl *** set variables based on configure arguments ***
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dnl set license and copyright notice
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dnl set license and copyright notice
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@ -945,6 +960,9 @@ AC_SUBST(GST_LIBS)
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dnl LDFLAGS really should only contain flags, not libs - they get added before
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dnl LDFLAGS really should only contain flags, not libs - they get added before
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dnl whatevertarget_LIBS and -L flags here affect the rest of the linking
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dnl whatevertarget_LIBS and -L flags here affect the rest of the linking
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GST_ALL_LDFLAGS="-no-undefined"
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GST_ALL_LDFLAGS="-no-undefined"
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if test "x${enable_Bsymbolic}" = "xyes"; then
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GST_ALL_LDFLAGS="$GST_ALL_LDFLAGS -Wl,-Bsymbolic-functions"
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fi
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AC_SUBST(GST_ALL_LDFLAGS)
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AC_SUBST(GST_ALL_LDFLAGS)
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dnl this really should only contain flags, not libs - they get added before
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dnl this really should only contain flags, not libs - they get added before
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