add macro to assist in checking if code snippets compile#600
add macro to assist in checking if code snippets compile#600
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white238
added
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feature
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This fixes spack/spack#32932 for me |
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tests/internal/unit/CMakeLists.txt
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| "#include <iostream> | ||
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| int main(int, char**) | ||
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| std::cout << \"Hello World!\" << std::endl; | ||
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| return 0; | ||
| } | ||
| ") |
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Suggestion: Should we use a "bracket argument" (multiline string) instead of a single quote string?
One benefit would be that we wouldn't need to modify the quotation marks
e,g,:
[=[
#include <iostream>
int main(int, char**)
{
std::cout << \"Hello World!\" << std::endl;
return 0;
}
]=]There was a problem hiding this comment.
This worked.. added it as a code snippet in the documentation as well.
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| set(options) | ||
| set(singleValueArgs CODE_COMPILES VERBOSE_OUTPUT) | ||
| set(multiValueArgs SOURCE_STRING) |
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Does SOURCE_STRING need to be a multiValueArg because it can have embedded semicolons?
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i bet it shouldn't actually.
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Tried changing this to a single value arg and it removed all the semi-colons.
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We ran into a problem where Umpire was trying to use CMake's macro
check_cxx_source_compiles. We found that it did not honor theCMAKE_CXX_STANDARD. There is a policy to control this but I could only get it to work for CMake 3.14.5 and 3.18.0 but anything above that did not work.This adds a macro we have used in Axom for a while. It is much more reliable and also allows you to output verbosely to the screen. For example: