diff options
Diffstat (limited to 'Makefile.pre.in')
| -rw-r--r-- | Makefile.pre.in | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/Makefile.pre.in b/Makefile.pre.in index dee1263..eb88f5f 100644 --- a/Makefile.pre.in +++ b/Makefile.pre.in @@ -793,13 +793,16 @@ $(GRAMMAR_H): $(GRAMMAR_INPUT) $(PGEN) if test "$(cross_compiling)" != "yes"; then \ $(PGEN) $(GRAMMAR_INPUT) $(GRAMMAR_H) $(GRAMMAR_C); \ else \ - cp $(srcdir)/Include/graminit.h $(GRAMMAR_H); \ + # Avoid copying the file onto itself for an in-tree build \ + cp $(srcdir)/Include/graminit.h $(GRAMMAR_H).tmp; \ + mv $(GRAMMAR_H).tmp $(GRAMMAR_H); \ fi $(GRAMMAR_C): $(GRAMMAR_H) if test "$(cross_compiling)" != "yes"; then \ touch $(GRAMMAR_C); \ else \ - cp $(srcdir)/Python/graminit.c $(GRAMMAR_C); \ + cp $(srcdir)/Python/graminit.c $(GRAMMAR_C).tmp; \ + mv $(GRAMMAR_C).tmp $(GRAMMAR_C); \ fi $(PGEN): $(PGENOBJS) |