mirror of
https://github.com/janet-lang/janet
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104 lines
2.9 KiB
Plaintext
104 lines
2.9 KiB
Plaintext
# A script to help generate build files on different platforms
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# The Makefile generator
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(def- make-cflags @["-std=c99" "-Wall" "-Wextra" "-O2" "-shared" "-fpic"])
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(def- make-ldflags @[])
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(if (= :macos (os.which))
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(array.push make-cflags "undefined -dynamic_lookup"))
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(defn- $
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"Do and get the value of a subshell command"
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[command]
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(def f (file.popen command))
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(def ret (file.read f :all))
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(file.close f)
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ret)
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(defn- emit-rule
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"Emit a rule in a makefile"
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@[out target deps recipe]
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(default recipe "@echo '-----'")
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(file.write
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out
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target
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": "
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(if (indexed? deps) (string.join deps " ") deps)
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"\n\t"
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(if (indexed? recipe) (string.join recipe "\n\t") recipe)
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"\n\n")
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out)
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(defn- generate-make
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"Generate a makefile"
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[out-path sources target]
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(def out (file.open out-path :w))
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(def csources (filter (fn [x] (= ".c" (string.slice x -2))) sources))
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(def hsources (filter (fn [x] (= ".h" (string.slice x -2))) sources))
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(file.write
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out
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"# Autogenerated Makefile, do not edit\n"
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"# Generated at " ($ `date`)
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"\nCFLAGS:=" (string.join make-cflags " ")
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"\nLDFLAGS:=" (string.join make-ldflags " ")
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"\nSOURCES:=" (string.join csources " ")
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"\nHEADERS:=" (string.join hsources " ")
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"\nOBJECTS:=$(patsubst %.c,%.o,${SOURCES})"
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"\nTARGET:=" target ".so"
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"\n\n")
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(emit-rule out "all" "${TARGET}")
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(emit-rule out "%.o" @["%.c" "${HEADERS}"] "${CC} ${CFLAGS} -o $@ $< ${LDFLAGS}")
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(emit-rule out "${TARGET}" "${OBJECTS}" "${CC} ${CFLAGS} -o $@ $^ ${LDFLAGS}")
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(emit-rule out "clean" "" "rm ${OBJECTS}")
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(emit-rule out "clean" "" @["rm ${OBJECTS}" "rm @{TARGET}"])
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# Phony targets
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(emit-rule out ".PHONY" @["all" "clean"])
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nil)
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# The batch script generator (windows)
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(defn- batch-crule
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"Create a snippet to compile a single C file to an .obj file"
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[file-path]
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(string
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`cl /nologo /I..\..\src\include /c /O2 /W3 `
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file-path
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"\n@if errorlevel 1 goto :BUILDFAIL"))
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(defn- generate-batch
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"Generate a batch file for windows"
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[out-path sources target]
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(def out (file.open out-path :w))
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(def csources (filter (fn [x] (= ".c" (string.slice x -2))) sources))
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(file.write
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out
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"@rem Generated batch script, run in 'Visual Studio Developer Prompt'\n"
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"\n@rem \n\n"
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"@echo off\n\n"
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(string.join (map batch-crule csources) "\n\n")
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"\n\n"
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`link /nologo /dll ..\..\dst.lib /out:` target `.dll *.obj`
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"\nif errorlevel 1 goto :BUILDFAIL"
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"\n\n@echo .\n@echo ======\n@echo Build Succeeded.\n@echo =====\n"
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"exit /b 0\n\n"
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":BUILDFAIL\n"
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"@echo .\n"
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"@echo =====\n"
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"@echo BUILD FAILED. See Output For Details.\n"
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"@echo =====\n"
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"@echo .\n"
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"exit /b 1\n")
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(file.flush out)
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(file.close out)
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nil)
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(defn generate
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"Generate the build files for a given library."
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[out-path sources target]
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((if (= :windows (os.which)) generate-batch generate-make)
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out-path
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sources
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target))
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