[AArch64] Support RAS extension for ARMv8 onwards.

[deliverable/binutils-gdb.git] / bfd / warning.m4

diff --git a/bfd/warning.m4 b/bfd/warning.m4
index 028d079202777eddc1be4b8e2851cd62f9ce9466..4c5b55d1f8c7896b8bb1e32d0c1abad2eb4ac403 100644 (file)
--- a/bfd/warning.m4
+++ b/bfd/warning.m4
@@ -30,6 +30,9 @@ AC_EGREP_CPP([^[0-3]$],[__GNUC__],,GCC_WARN_CFLAGS="$GCC_WARN_CFLAGS -Wshadow")
 # Add -Wstack-usage if the compiler is a sufficiently recent version of GCC.
 AC_EGREP_CPP([^[0-4]$],[__GNUC__],,GCC_WARN_CFLAGS="$GCC_WARN_CFLAGS -Wstack-usage=262144")
 
+# Set WARN_WRITE_STRINGS if the compiler supports -Wwrite-strings.
+WARN_WRITE_STRINGS=""
+AC_EGREP_CPP([^[0-3]$],[__GNUC__],,WARN_WRITE_STRINGS="-Wwrite-strings")
 
 AC_ARG_ENABLE(werror,
   [  --enable-werror         treat compile warnings as errors],
@@ -84,4 +87,5 @@ fi
 
 AC_SUBST(WARN_CFLAGS)
 AC_SUBST(NO_WERROR)
+     AC_SUBST(WARN_WRITE_STRINGS)
 ])