Cody Boone Ferguson
d2e5aebd73
The scripts now allow one to pass in CC=foo. If a path is specified it'll use that path (for instance in case you want a different version or because in macOS /usr/bin/gcc is actually clang); otherwise the shell will try working it out. If one does not do CC=foo then it'll default to 'cc'. Both try.sh and compile.sh allow this and try.sh will pass CC to compile.sh before running the commands. The CSILENCE variable in the Makefile has been updated as well. It is not possible to silence all warnings with clang but most of them are, at least in macOS clang (not tested linux yet).
83 lines
2.5 KiB
Bash
Executable File
83 lines
2.5 KiB
Bash
Executable File
#!/usr/bin/env bash
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#
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# compile.sh - compile westley.c then generate and compile versions
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#
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# To change what compiler is used you can do something like:
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#
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# CC=/path/to/cc ./compile.sh
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# CC=gcc ./compile.sh
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#
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# The path is only necessary if the default using the shell would result in the
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# wrong one for instance in macOS /usr/bin/gcc is actually clang but if you have
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# gcc installed elsewhere you can specify the path. If CC is unset it will be
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# set to 'cc'.
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#
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# The following example was run on a MacBook Pro (with the M1 Max) which which
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# could not normally compile everything by default because clang can only compile some of
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# the versions due to defects in clang. Getting clang to compile any version was
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# an incredible challenge but some versions of the generated code can be
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# compiled with clang. Nevertheless if you have gcc from, say, MacPorts,
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# installed, you could do:
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#
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# CC=/opt/local/bin/gcc-mp-13 ./compile.sh
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#
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# If you don't specify a path the shell/script will figure it out.
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#
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# We sleep (by default) for 0 seconds after each command but one can set that to
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# a different value so that it's easier for them to read what is being done. For
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# instance to change it to 2 seconds:
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#
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# DELAY=2 ./compile.sh
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#
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# You can of course use both variables in the same command line like:
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#
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# CC=/opt/local/bin/gcc-mp-13 DELAY=2 ./compile.sh
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# DELAY=2 CC=/opt/local/bin/gcc-mp-13 ./compile.sh
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#
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# ...and so on.
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# get the compiler using default cc if not specified in the command line
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#
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if [[ -z "$CC" ]]; then
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CC="cc"
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fi
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# get sleep duration
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if [[ -z "$DELAY" ]]; then
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DELAY=0
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fi
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# make clobber to make the directory clean and then compile westley which we
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# need to run everything else. Exit if make westley fails as there would be
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# nothing further that could be done in that case:
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#
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echo "$ make clobber westley" 1>&2
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sleep "$DELAY"
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make CC="$CC" clobber westley || exit 1
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sleep "$DELAY"
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# run commands previously in the try section of the README.md, showing what the
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# commands are as we go:
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echo "$ ./westley < westley.c > ver0.c" 1>&2
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./westley < westley.c > ver0.c
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sleep "$DELAY"
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echo "$ ./westley 1 < westley.c > ver1.c" 1>&2
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./westley 1 < westley.c > ver1.c
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sleep "$DELAY"
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echo "$ ./westley 1 2 < westley.c > ver2.c" 1>&2
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./westley 1 2 < westley.c > ver2.c
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sleep "$DELAY"
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echo "$ ./westley 1 2 3 < westley.c > ver3.c" 1>&2
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./westley 1 2 3 < westley.c > ver3.c
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sleep "$DELAY"
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# now compile the files by running make
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#
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echo "Compiling generated versions ..." 1>&2
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sleep "$DELAY"
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echo "$ make CC=$CC ver0 ver1 ver2 ver3" 1>&2
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sleep "$DELAY"
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make CC="$CC" ver0 ver1 ver2 ver3
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