Cargo does not play nicely with VPATH (at least, that's what my quick
google search found:
https://github.com/rust-lang/cargo/issues/5457#issuecomment-451695299).
Easiest is to just disable it when we detect a VPATH build.
---
configure.ac | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/configure.ac b/configure.ac
index 000a7d67..9541b591 100644
--- a/configure.ac
+++ b/configure.ac
@@ -942,11 +942,16 @@ EOF
])
dnl For developing plugins in Rust, optional.
+dnl Rust does not play nicely with VPATH builds
AC_CHECK_PROG([CARGO],[cargo],[cargo],[no])
AC_ARG_ENABLE([rust],
[AS_HELP_STRING([--disable-rust], [disable Rust plugin])],
[],
- [enable_rust=yes])
+ [if test "x$(realpath $srcdir)" = "x$(realpath .)"; then
+ enable_rust=yes
+ else
+ enable_rust=no
+ fi])
AM_CONDITIONAL([HAVE_RUST],
[test "x$CARGO" != "xno" && test "x$enable_rust" != "xno"])
--
2.37.3
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