2868e26d0a
`clang/tools/scan-build` is implemented in `perl`. However given `perl` is not mentioned as a required dependency in `GettingStarted.rst` we should make this optional. This adds a `find_package(Perl)` check to cmake and disables the `scan-build` tests when no perl executable is found. Ideally we would also check if dependent perl modules like `Hash::Util` are present on the system, but I don't see any pre-existing cmake macros to easily test this. So for now I go with a plain check for the `perl` package, at least this allows to use `cmake -DCMAKE_DISABLE_FIND_PACKAGE_Perl=ON` to manually disable `perl` and the tests.
28 lines
1.1 KiB
Plaintext
28 lines
1.1 KiB
Plaintext
RUN: rm -rf %t.output_dir && mkdir %t.output_dir
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RUN: %scan-build -o %t.output_dir \
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RUN: %clang -S %S/Inputs/null_dereference_and_division_by_zero.c \
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RUN: | FileCheck %s -check-prefix CHECK-TWO-BUGS
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RUN: rm -rf %t.output_dir && mkdir %t.output_dir
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RUN: %scan-build -o %t.output_dir \
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RUN: -disable-checker core.DivideZero \
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RUN: %clang -S %S/Inputs/null_dereference_and_division_by_zero.c \
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RUN: | FileCheck %s -check-prefix CHECK-ONE-BUG
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RUN: rm -rf %t.output_dir && mkdir %t.output_dir
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RUN: %scan-build -o %t.output_dir \
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RUN: -disable-checker core.NullDereference \
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RUN: %clang -S %S/Inputs/null_dereference_and_division_by_zero.c \
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RUN: | FileCheck %s -check-prefix CHECK-ONE-BUG
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RUN: rm -rf %t.output_dir && mkdir %t.output_dir
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RUN: %scan-build -o %t.output_dir \
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RUN: -disable-checker core.NullDereference \
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RUN: -disable-checker core.DivideZero \
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RUN: %clang -S %S/Inputs/null_dereference_and_division_by_zero.c \
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RUN: | FileCheck %s -check-prefix CHECK-NO-BUGS
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CHECK-NO-BUGS: scan-build: No bugs found.
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CHECK-ONE-BUG: scan-build: 1 bug found.
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CHECK-TWO-BUGS: scan-build: 2 bugs found.
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