Merge pull request #1926 from trhd/libbug

Fix a missing path issue causing Python traceback.

mesonbuild/compilers/compilers.py

@@ -763,6 +763,10 @@ class Compiler:
         # directory. This breaks reproducible builds.
         rel_rpaths = []
         for p in rpath_paths:
+            # p can be an empty string for build_dir (relative path), but
+            # os.path.relpath() below won't like that.
+            if p == '':
+                p = build_dir
             if p == from_dir:
                 relative = '' # relpath errors out in this case
             else:

test cases/common/154 library at root/lib.c

@@ -0,0 +1,6 @@
+#if defined _WIN32 || defined __CYGWIN__
+__declspec(dllexport)
+#endif
+int fn(void) {
+    return -1;
+}

test cases/common/154 library at root/main/main.c

@@ -0,0 +1,5 @@
+extern int fn(void);
+
+int main() {
+    return 1 + fn();
+}

test cases/common/154 library at root/main/meson.build

@@ -0,0 +1,2 @@
+exe = executable('main', 'main.c', link_with : lib)
+test('stuff works', exe)

test cases/common/154 library at root/meson.build

@@ -0,0 +1,3 @@
+project('lib@root', 'c')
+lib = shared_library('lib', 'lib.c')
+subdir('main')