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author | Kevin Ryde <user42@zip.com.au> | 2000-07-15 23:52:27 +0200 |
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committer | Kevin Ryde <user42@zip.com.au> | 2000-07-15 23:52:27 +0200 |
commit | fc2f613464e2d2e586c670d7e7369921d2afce24 (patch) | |
tree | a1cb2988e955f945c1481aa1fd890b6b521c1ca3 /demos | |
parent | 5b0dda8905f80b4d8e95095cf18e60beb48648ef (diff) | |
download | gmp-fc2f613464e2d2e586c670d7e7369921d2afce24.tar.gz |
Correction to calc program checkin: make sure the calclex.c is
recompiled if calc.h changes, amend some comments.
Diffstat (limited to 'demos')
-rw-r--r-- | demos/Makefile.am | 23 |
1 files changed, 15 insertions, 8 deletions
diff --git a/demos/Makefile.am b/demos/Makefile.am index fb953fc90..a66b4dbc8 100644 --- a/demos/Makefile.am +++ b/demos/Makefile.am @@ -32,25 +32,32 @@ calc_SOURCES = calc.c calclex.c calc.h qcn_LDADD = $(LDADD) -lm # None of these programs are built by default, but "make <whatever>" will -# build them once libgmp.la has been built. +# build them once libgmp.la is built. # EXTRA_PROGRAMS = calc factorize isprime pexpr primes qcn CLEANFILES = $(EXTRA_PROGRAMS) - allprogs: $(EXTRA_PROGRAMS) # The distribution includes calc.c, calc.h and calclex.c, generated with -# bison and flex, so the calc program can be built even if yacc and lex -# aren't available. The rules below will regenerate those files if you -# modify calc.y or calclex.l. +# bison and flex, so the calc program will build even if yacc and lex aren't +# available. The rules below regenerate those files if you modify calc.y or +# calclex.l. +# +# Using "cd"s instead of a $(srcdir) path ensures $(srcdir) doesn't get into +# the "#line"s in the generated files. +# +# FIXME: Automake yacc handling isn't quite right when building in a +# separate object directory, hence the explicit rules used for now. # -# The "cd"s ensure $(srcdir) doesn't get into the "#line"s in the generated -# files. +# FIXME: With ansi2knr and no-dependencies, there doesn't seem any easy way +# to manually express that calclex$U.lo depends on calc.h. Making calclex.c +# depend on calc.h gets the right result, but the extra lex runs are +# unnecessary. -$(srcdir)/calclex.c: calclex.l +$(srcdir)/calclex.c: calclex.l calc.h cd $(srcdir); lex -ocalclex.c calclex.l $(srcdir)/calc.c $(srcdir)/calc.h: calc.y cd $(srcdir); yacc -d -ocalc.c calc.y |