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Merge pull request #32 from enh/master

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maketab: support build systems with read-only source.
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onetrueawk 2019-03-03 15:11:28 -05:00 committed by GitHub
commit 2d9034a01a
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3 changed files with 13 additions and 3 deletions
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6
.gitignore vendored Normal file
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@ -0,0 +1,6 @@
a.out
maketab
proctab.c
ytab.c
ytab.h
*.o

2
makefile
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@ -67,7 +67,7 @@ y%.c y%.h: awk.h proto.h awkgram.y
ytab.h: ytab.c ytab.h: ytab.c
proctab.c: maketab proctab.c: maketab
./maketab >proctab.c ./maketab ytab.h >proctab.c
maketab: ytab.h maketab.c maketab: ytab.h maketab.c
$(CC) $(CFLAGS) maketab.c -o maketab $(CC) $(CFLAGS) maketab.c -o maketab

8
maketab.c
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@ -125,8 +125,12 @@ int main(int argc, char *argv[])
for (i = SIZE; --i >= 0; ) for (i = SIZE; --i >= 0; )
names[i] = ""; names[i] = "";
if ((fp = fopen("ytab.h", "r")) == NULL) { if (argc != 2) {
fprintf(stderr, "maketab can't open ytab.h!\n"); fprintf(stderr, "usage: maketab YTAB_H\n");
exit(1);
}
if ((fp = fopen(argv[1], "r")) == NULL) {
fprintf(stderr, "maketab can't open %s!\n", argv[1]);
exit(1); exit(1);
} }
printf("static char *printname[%d] = {\n", SIZE); printf("static char *printname[%d] = {\n", SIZE);