Fix cross-compilation for RISC-V.

While commit 671b252 ("Improve support for Linux/RISC-V") adds some support for the RISC-V architecture, it doesn't update m4/stack-direction.m4 to properly support cross-compiling libsigsegv for a RISC-V architecture. According to https://riscv.org/wp-content/uploads/2015/01/riscv-calling.pdf: "In the standard RISC-V calling convention, the stack grows downward", so let's update m4/stack-direction.m4 accordingly. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
roswell · Nov 14, 2018 · fd0e3d9 · fd0e3d9
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diff --git a/ChangeLog b/ChangeLog
@@ -1,3 +1,8 @@
+2018-11-13  Thomas Petazzoni <thomas.petazzoni@bootlin.com>
+
+	Fix cross-compilation for RISC-V.
+	* m4/stack-direction.m4: Add stack direction for RISC-V.
+
 2018-10-24  Bruno Haible  <bruno@clisp.org>
 
 	Update after gnulib changed.

diff --git a/m4/stack-direction.m4 b/m4/stack-direction.m4
@@ -43,6 +43,7 @@ AC_DEFUN([SV_STACK_DIRECTION],
       pdp11 | \
       pj* | \
       powerpc* | rs6000 | \
+      riscv* | \
       romp | \
       s390* | \
       sh* | \