[libpng15] Added --noexecstack to assembler file compilation.
diff --git a/configure.ac b/configure.ac
index 34cc4b8..21a1b92 100644
--- a/configure.ac
+++ b/configure.ac
@@ -189,6 +189,11 @@
# here (this may by GCC specific)
AC_SUBST([AM_CCASFLAGS], [--noexecstack])
+# Because GCC by default assembles code with an executable stack, even though it
+# compiles C code with a non-executable stack, it is necessary to do a fixup
+# here (this may by GCC specific)
+AC_SUBST([AM_CCASFLAGS], [--noexecstack])
+
AC_ARG_ENABLE([arm-neon],
AC_HELP_STRING([--enable-arm-neon], [Enable ARM NEON optimizations]),
[if test "${enableval}" = yes; then
