From 3e1e73fc99584440e5967577f2049573eeaf4596 Mon Sep 17 00:00:00 2001
From: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
Date: Mon, 8 Apr 2024 18:33:38 +0200
Subject: build: Check for cargo when building rust language

Prevent rust language from building when cargo is
missing.

config/ChangeLog:

	* acx.m4: Add a macro to check for rust
	components.

ChangeLog:

	* configure: Regenerate.
	* configure.ac: Emit an error message when cargo
	is missing.

Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
---
 config/acx.m4 | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'config')

diff --git a/config/acx.m4 b/config/acx.m4
index 7efe98a..3c5fe67 100644
--- a/config/acx.m4
+++ b/config/acx.m4
@@ -424,6 +424,17 @@ else
 fi
 ])
 
+# Test for Rust
+# We require cargo and rustc for some parts of the rust compiler.
+AC_DEFUN([ACX_PROG_CARGO],
+[AC_REQUIRE([AC_CHECK_TOOL_PREFIX])
+AC_CHECK_TOOL(CARGO, cargo, no)
+if test "x$CARGO" != xno; then
+  have_cargo=yes
+else
+  have_cargo=no
+fi])
+
 # Test for D.
 AC_DEFUN([ACX_PROG_GDC],
 [AC_REQUIRE([AC_CHECK_TOOL_PREFIX])
-- 
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