2ddf0caaed
When passing `-save-temps` to clang, the generated preprocessed output uses gnu line markers. This unexpectedly triggers gnu-line-marker warnings when used with `-Weverything` or `-pedantic`. Even worse, compilation fails if `-Werror` is used. This change suppresses gnu-line-marker warnings when invoking clang with input from a preprocessor job and the user has not otherwise explictly specified `-Wgnu-line-marker` somewhere on the command line. Note that this does apply to user provided preprocessed files. fixes #63802
17 lines
612 B
C
17 lines
612 B
C
// RUN: %clang_cc1 -std=c99 -fsyntax-only -pedantic %s 2>&1 | FileCheck %s
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// RUN: cp %s %t.i
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// RUN: %clang_cc1 -std=c99 -fsyntax-only -pedantic %t.i 2>&1 | FileCheck %s --check-prefix=NO-WARNING --allow-empty
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// RUN: %clang_cc1 -std=c99 -fsyntax-only -pedantic -x cpp-output %s 2>&1 | FileCheck %s --check-prefix=NO-WARNING --allow-empty
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# 0 "zero"
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// CHECK: line-directive-suppressed.c:[[@LINE-1]]:5: warning: {{.*}} [-Wgnu-line-marker]
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# 1 "one" 1
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// CHECK: zero:2:5: warning: {{.*}} [-Wgnu-line-marker]
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# 2 "two" 1 3 4
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// CHECK: one:3:5: warning: {{.*}} [-Wgnu-line-marker]
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// NO-WARNING-NOT: warning:
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