build: set LD_LIBRARY_PATH and GI_TYPELIB_PATH variables in run-nm-test.sh

With autotools, we use libtool so that the right libraries are
automatically found. Still, we won't find the right GI typelib.

Add a mechanism so that when make/meson invokes the run-nm-test.sh
runner, it passes the build-root directory.

Also, try to autodetect when invoked manually.

configure.ac

@@ -1228,7 +1228,7 @@ else
 		with_valgrind_suppressions='$(top_srcdir)/valgrind.suppressions'
 	fi
 fi
-AC_SUBST(NM_LOG_COMPILER, 'LOG_COMPILER = "$(top_srcdir)/tools/run-nm-test.sh" --called-from-make "$(LIBTOOL)" "$(with_valgrind)" "'"$with_valgrind_suppressions"'" --launch-dbus=auto')
+AC_SUBST(NM_LOG_COMPILER, 'LOG_COMPILER = "$(top_srcdir)/tools/run-nm-test.sh" --called-from-make "$(abs_top_builddir)" "$(LIBTOOL)" "$(with_valgrind)" "'"$with_valgrind_suppressions"'" --launch-dbus=auto')
 
 AM_PATH_PYTHON([], [], [PYTHON=python])
 AC_SUBST(PYTHON, [$PYTHON])

meson.build

@@ -741,15 +741,13 @@ endif
 
 test_args = [
   '--called-from-make',
+  meson.build_root(),
   '',
   enable_valgrind ? valgrind.path() : '',
   enable_valgrind ? valgrind_suppressions_path : '',
   '--launch-dbus=auto'
 ]
 
-# FIXME
-#AC_SUBST(NM_LOG_COMPILER, 'LOG_COMPILER = "$(top_srcdir)/tools/run-nm-test.sh" --called-from-make "$(LIBTOOL)" "$(with_valgrind)" "'"$with_valgrind_suppressions"'" --launch-dbus=auto')
-
 py3 = import('python3')
 python = py3.find_python()
 

tools/run-nm-test.sh

@@ -34,7 +34,11 @@ else
     CALLED_FROM_MAKE=0
 fi
 
+BUILDDIR=
+
 if [ "$CALLED_FROM_MAKE" == 1 ]; then
+    BUILDDIR="$1"
+    shift
     if [ -n "$1" ]; then
         NMTST_LIBTOOL=($1 --mode=execute);
     else
@@ -144,6 +148,7 @@ else
             ;;
         esac
     done
+
     # we support calling the script directly. In this case,
     # only pass the path to the test to run.
     if test -z "${TEST+x}"; then
@@ -153,6 +158,20 @@ else
         NMTST_SUPPRESSIONS="$SCRIPT_PATH/../valgrind.suppressions"
     fi
 
+    if [[ -z "$NMTST_BUILDDIR" ]]; then
+        if [[ "${NMTST_BUILDDIR-x}" == x ]]; then
+            # autodetect
+            BUILDDIR="$(readlink -f "$TEST")"
+            while [[ -n "$BUILDDIR" ]]; do
+                BUILDDIR="$(dirname "$BUILDDIR")"
+                [[ "$BUILDDIR" == / ]] && BUILDDIR=
+                [[ -z "$BUILDDIR" ]] && break
+                [[ -e "$BUILDDIR/libnm/.libs/libnm.so" ]] && break
+                [[ -e "$BUILDDIR/libnm/libnm.so" ]] && break
+            done
+        fi
+    fi
+
 fi
 
 if [ "$NMTST_SET_DEBUG" == 1 -a -z "${NMTST_DEBUG+x}" ]; then
@@ -198,6 +217,16 @@ fi
 
 [ -x "$TEST" ] || die "Cannot execute test \"$TEST\""
 
+if [[ -n "$BUILDDIR" ]]; then
+    if [[ -d "$BUILDDIR/libnm" ]]; then
+        export GI_TYPELIB_PATH="$BUILDDIR/libnm/${GI_TYPELIB_PATH:+:$GI_TYPELIB_PATH}"
+        if [[ -d "$BUILDDIR/libnm/.libs" ]]; then
+            export LD_LIBRARY_PATH="$BUILDDIR/libnm/.libs${LD_LIBRARY_PATH:+:$LD_LIBRARY_PATH}"
+        else
+            export LD_LIBRARY_PATH="$BUILDDIR/libnm${LD_LIBRARY_PATH:+:$LD_LIBRARY_PATH}"
+        fi
+    fi
+fi
 
 if ! _is_true "$NMTST_USE_VALGRIND" 0; then
     "${NMTST_DBUS_RUN_SESSION[@]}" \