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19f267c75e
The Ninja generator's support for Fortran requires that source files be preprocessed explicitly first. However, the `xlf` compiler does not have a simple `-E` option or equivalent to do preprocessing. The only documented way to get preprocessed output is to use `-d` to leave it behind, but only at an inflexible location. Instead, create our own `cpp` wrapper script and substitute it for the real preprocessor using `-tF -B ...`. Teach the wrapper to map the `cpp` output to the location we need and then invoke the real `cpp` underneath. Fixes: #19450
30 lines
633 B
Bash
Executable File
30 lines
633 B
Bash
Executable File
#!/usr/bin/env bash
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# Source file.
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src="$(printf %q "$1")"
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shift
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# Output file the compiler expects.
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out="$(printf %q "$1")"
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shift
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# Create the file the compiler expects. It will check syntax.
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>"$out"
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cpp='cpp'
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opts=''
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while test "$#" != 0; do
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case "$1" in
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# Extract the option for the path to cpp.
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--cpp) shift; cpp="$(printf %q "$1")" ;;
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# Extract the option for our own output file.
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--out) shift; out="$(printf %q "$1")" ;;
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# Collect the rest of the command line.
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*) opts="$opts $(printf %q "$1")" ;;
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esac
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shift
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done
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# Execute the real preprocessor tool.
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eval "exec $cpp $src $out $opts"
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