1// RUN: rm -rf %t 2// RUN: rm -rf %t-saved 3// RUN: mkdir %t-saved 4 5// Initial module build 6// RUN: %clang_cc1 -fmodules -fimplicit-module-maps -fbuiltin-headers-in-system-modules \ 7// RUN: -fmodules-cache-path=%t -fdisable-module-hash -isystem %S/Inputs/System/usr/include \ 8// RUN: -fsyntax-only %s -verify 9// RUN: cp %t/cstd.pcm %t-saved/cstd.pcm 10 11// Even with -Werror don't rebuild a system module 12// RUN: %clang_cc1 -fmodules -fimplicit-module-maps -fbuiltin-headers-in-system-modules \ 13// RUN: -fmodules-cache-path=%t -fdisable-module-hash -isystem %S/Inputs/System/usr/include \ 14// RUN: -fsyntax-only %s -verify -Werror 15// RUN: diff %t/cstd.pcm %t-saved/cstd.pcm 16 17// Unless -Wsystem-headers is on 18// RUN: %clang_cc1 -fmodules -fimplicit-module-maps -fbuiltin-headers-in-system-modules \ 19// RUN: -fmodules-cache-path=%t -fdisable-module-hash -isystem %S/Inputs/System/usr/include \ 20// RUN: -fsyntax-only %s -verify -Werror=unused -Wsystem-headers 21// RUN: not diff %t/cstd.pcm %t-saved/cstd.pcm 22 23// expected-no-diagnostics 24@import cstd; 25