| https://bugs.gentoo.org/511892 |
| |
| the scanner needs the generated header file, so make sure it's listed as a |
| dependency. else you see a failure: |
| $ cd sfbpf |
| $ make clean |
| $ make sf_scanner.lo |
| <missing tokdefs.h> |
| we'd like to list it as a dep of the object, but automake can use generated |
| file names, so it's not easy to list that. |
| |
| we can't have both of the outputs from grammar.y run the lex, otherwise we |
| hit random parallel build failures: |
| $ cd sfbpf |
| $ make clean |
| $ make tokdefs.h sf_grammar.c -j |
| <run yacc twice & fail> |
| |
| --- a/sfbpf/Makefile.am |
| +++ b/sfbpf/Makefile.am |
| @@ -43,14 +43,16 @@ |
| libsfbpf_la_LDFLAGS = -version-info 0:1:0 @XCCFLAGS@ |
| |
| # use of $@ and $< here is a GNU idiom that borks BSD |
| -${builddir}/sf_scanner.c: ${srcdir}/scanner.l |
| +${builddir}/sf_scanner.c: ${srcdir}/scanner.l ${builddir}/tokdefs.h |
| @rm -f ${builddir}/sf_scanner.c |
| ${srcdir}/runlex.sh $(V_LEX) -osf_scanner.c ${srcdir}/scanner.l |
| |
| -${builddir}/tokdefs.h ${builddir}/sf_grammar.c: ${srcdir}/grammar.y |
| +${builddir}/sf_grammar.c: ${srcdir}/grammar.y |
| @rm -f ${builddir}/sf_grammar.c ${builddir}/tokdefs.h |
| $(V_YACC) -d ${srcdir}/grammar.y |
| mv y.tab.c sf_grammar.c |
| mv y.tab.h tokdefs.h |
| |
| +${builddir}/tokdefs.h: ${builddir}/sf_grammar.c ; @true |
| + |
| CLEANFILES = ${builddir}/sf_scanner.c ${builddir}/sf_grammar.c ${builddir}/tokdefs.h ${builddir}/sf_scanner.h |
