all: require C++17

2023-01-03 15:11:11 +01:00
parent 811b15a5b3
commit 72f3e9b25a
5 changed files with 10 additions and 11 deletions
@@ -129,3 +129,5 @@ endif
 ifeq ($(wildcard ./vendor/zlib/crc32.c),)
  $(error ERROR: missing git submodule; run 'git submodule update --init')
 endif
+
+.NOTPARALLEL: # top-level Makefile is sequential, but actual builds use "cmake --parallel"