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// Test with pch.
// RUN: %clang_cc1 -emit-pch -DFOO -o %t %S/variables.h
// RUN: %clang_cc1 -DBAR=int -include-pch %t -fsyntax-only -pedantic %s
// RUN: %clang_cc1 -DFOO -DBAR=int -include-pch %t %s
// RUN: not %clang_cc1 -DFOO=blah -DBAR=int -include-pch %t %s 2> %t.err
// RUN: FileCheck -check-prefix=CHECK-FOO %s < %t.err
// RUN: not %clang_cc1 -UFOO -include-pch %t %s 2> %t.err
// RUN: FileCheck -check-prefix=CHECK-NOFOO %s < %t.err
// RUN: not %clang_cc1 -DFOO -undef -include-pch %t %s 2> %t.err
// RUN: FileCheck -check-prefix=CHECK-UNDEF %s < %t.err
BAR bar = 17;
#ifndef FOO
# error FOO was not defined
#endif
#if FOO != 1
# error FOO has the wrong definition
#endif
#ifndef BAR
# error BAR was not defined
#endif
// CHECK-FOO: definition of macro 'FOO' differs between the precompiled header ('1') and the command line ('blah')
// CHECK-NOFOO: macro 'FOO' was defined in the precompiled header but undef'd on the command line
// CHECK-UNDEF: command line contains '-undef' but precompiled header was not built with it
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