diff options
| -rw-r--r-- | configure.ac | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 7c640fa..90654c6 100644 --- a/configure.ac +++ b/configure.ac @@ -93,6 +93,30 @@ AC_MSG_RESULT([$platform_win32]) AM_CONDITIONAL(OS_LINUX, [test "$platform_linux" = "yes"]) AM_CONDITIONAL(OS_WIN32, [test "$platform_win32" = "yes"]) +# Check for -Bsymbolic-functions to avoid intra-library PLT jumps +AC_ARG_ENABLE([Bsymbolic], + [AS_HELP_STRING([--disable-Bsymbolic], + [Avoid linking with -Bsymbolic])], + [], + [ + saved_LDFLAGS="${LDFLAGS}" + AC_MSG_CHECKING([for -Bsymbolic-functions linker flag]) + LDFLAGS=-Wl,-Bsymbolic-functions + AC_TRY_LINK([], [int main (void) { return 0; }], + [ + AC_MSG_RESULT([yes]) + enable_Bsymbolic=yes + ], + [ + AC_MSG_RESULT([no]) + enable_Bsymbolic=no + ]) + LDFLAGS="${saved_LDFLAGS}" + ]) + +AS_IF([test "x$enable_Bsymbolic" = "xyes"], [JSON_LINK_FLAGS=-Wl[,]-Bsymbolic-functions]) +JSON_LT_LDFLAGS="$JSON_LT_LDFLAGS $JSON_LINK_FLAGS" + AC_SUBST(JSON_LT_LDFLAGS) dnl === Dependencies ========================================================== |