From ea85465e608178080c3b4d51af9765a8c7c0dae3 Mon Sep 17 00:00:00 2001
From: Matt Weber <matthew.weber@rockwellcollins.com>
Date: Sat, 26 Oct 2019 09:17:29 -0500
Subject: [PATCH] Prefer ext static libs when --default-library=static

This patch adds a case in the library pattern logic to prefer static
libraries when the Meson Core option for "default_library" is set to
solely static.

The existing library search order makes sense for cases of shared and
shared / static mixed. However if using a prebuilt cross-toolchain,
they usually provide both a static and shared version of sysroot
libraries. This presents a problem in a complete static build where
there won't be shared libraries at runtime and during build time there
are failures like "ld: attempted static link of dynamic object".

Bug:
https://github.com/mesonbuild/meson/issues/6108

Fixes:
http://autobuild.buildroot.net/results/db1740b4777f436324218c52bc7b08e5c21b667d/
http://autobuild.buildroot.net/results/c17/c17bbb12d9deadd64a441b36e324cfbbe8aba5be/

Signed-off-by: Matthew Weber <matthew.weber@rockwellcollins.com>
---
 mesonbuild/compilers/mixins/clike.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/mesonbuild/compilers/mixins/clike.py b/mesonbuild/compilers/mixins/clike.py
index 47e97d261..729c98acc 100644
--- a/mesonbuild/compilers/mixins/clike.py
+++ b/mesonbuild/compilers/mixins/clike.py
@@ -940,6 +940,9 @@ class CLikeCompiler:
         elif env.machines[self.for_machine].is_cygwin():
             shlibext = ['dll', 'dll.a']
             prefixes = ['cyg'] + prefixes
+        elif env.coredata.get_builtin_option('default_library') == 'static':
+            # Linux/BSDs
+            shlibext = ['a']
         else:
             # Linux/BSDs
             shlibext = ['so']
-- 
2.25.1