From 5e9aefb52a0c8dfa951ee0245aeea1fa889078c1 Mon Sep 17 00:00:00 2001
From: Daniel Kolesa <daniel@octaforge.org>
Date: Mon, 12 Apr 2021 03:56:59 +0200
Subject: [PATCH] disable mac and mingw cross CI builds for now

apparently macos c++ stdlib is missing c++20 features (particularly
string_view doesn't seem to accept two pointers in a constructor)
and mingw is only present as gcc9 in ubuntu 20.04 (too old)
---
 .github/workflows/build.yaml | 37 +++++++++++++++++-------------------
 README.md                    |  3 ++-
 src/cs_std.hh                |  1 +
 3 files changed, 20 insertions(+), 21 deletions(-)

diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index 196f18c..7d7961e 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -35,7 +35,8 @@ jobs:
           - { target: mips-linux-gnu, cc: gcc-10, buildtype: debugoptimized }
           - { target: m68k-linux-gnu, cc: gcc-10, buildtype: debug }
           # x86_64 windows cross, release mode
-          - { target: x86_64-w64-mingw32, cc: gcc-10, buildtype: release }
+          # there is no gcc10 mingw64 crosscompiler yet and gcc9 is too old
+          #- { target: x86_64-w64-mingw32, cc: gcc-10, buildtype: release }
 
     steps:
       - name: Checkout
@@ -53,9 +54,6 @@ jobs:
     name: Windows
     runs-on: windows-2019
 
-    env:
-      LUA_VERSIONS: '5.4.2 5.3.6 5.2.4 5.1.5'
-
     steps:
       - name: Checkout
         uses: actions/checkout@v2
@@ -68,23 +66,22 @@ jobs:
       - name: Build and test cubescript
         run: bash ./.ci/build-cs-windows
 
-  mac:
-    name: MacOS
-    runs-on: macos-10.15
+#  mac:
+#    name: MacOS
+#    runs-on: macos-10.15
 
-    env:
-      TARGET: 'darwin'
-      LUA_VERSIONS: '5.4.2 5.3.6 5.2.4 5.1.5'
-      CC: 'clang'
+#    env:
+#      TARGET: 'darwin'
+#      CC: 'clang'
 
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v2
-        with:
-          persist-credentials: false
+#    steps:
+#      - name: Checkout
+#        uses: actions/checkout@v2
+#        with:
+#          persist-credentials: false
 
-      - name: Prepare environment
-        run: sh ./.ci/install-env
+#      - name: Prepare environment
+#        run: sh ./.ci/install-env
 
-      - name: Build and test cubescript
-        run: sh ./.ci/build-cs
+#      - name: Build and test cubescript
+#        run: sh ./.ci/build-cs
diff --git a/README.md b/README.md
index 7210272..05ab2a1 100644
--- a/README.md
+++ b/README.md
@@ -114,7 +114,8 @@ compilers include:
 * Clang 11
 * Microsoft Visual C++ 2019
 
-Older versions of GCC and Clang may work, with no guarantees.
+Older versions of Clang may work, with no guarantees (GCC 9 does not, though,
+as it's missing features in libstdc++).
 
 You will need [Meson](https://mesonbuild.com/) to build the project. Most
 Unix-like systems have it in their package management, on Windows there is
diff --git a/src/cs_std.hh b/src/cs_std.hh
index 4c91df8..9ed1456 100644
--- a/src/cs_std.hh
+++ b/src/cs_std.hh
@@ -6,6 +6,7 @@
 #include <cstddef>
 #include <new>
 #include <utility>
+#include <vector>
 #include <type_traits>
 #include <string_view>