usr.bin/make/unit-tests/posix1.mk

   1 # $NetBSD: posix1.mk,v 1.3 2014/08/30 22:21:08 sjg Exp $
   2
   3 # Keep the default suffixes from interfering, just in case.
   4 .SUFFIXES:
   5
   6 all:    line-continuations suffix-substitution localvars
   7
   8 # we need to clean for repeatable results
   9 .BEGIN: clean
  10 clean:
  11         @rm -f lib.a dir/* dummy obj*
  12
  13 #
  14 # Line continuations
  15 #
  16
  17 # Escaped newlines and leading whitespace from the next line are replaced
  18 # with single space, except in commands, where the escape and the newline
  19 # are retained, but a single leading tab (if any) from the next line is
  20 # removed. (PR 49085)
  21 # Expect:
  22 # ${VAR} = "foo  bar baz"
  23 # a
  24 # b
  25 # c
  26 VAR = foo\
  27 \
  28           bar\
  29  baz
  30
  31 line-continuations:
  32         @echo '$${VAR} = "${VAR}"'
  33         @echo 'aXbXc' | sed -e 's/X/\
  34         /g'
  35
  36
  37 #
  38 # Suffix substitution
  39 #
  40
  41 # The only variable modifier accepted by POSIX.
  42 # ${VAR:s1=s2}: replace s1, if found, with s2 at end of each word in
  43 # ${VAR}.  s1 and s2 may contain macro expansions.
  44 # Expect: foo baR baz, bar baz, foo bar baz, fooadd baradd bazadd
  45 suffix-substitution:
  46         @echo '${VAR:r=R}, ${VAR:foo=}, ${VAR:not_there=wrong}, ${VAR:=add}'
  47
  48
  49 #
  50 # Local variables: regular forms, D/F forms and suffix substitution.
  51 #
  52
  53 # In the past substitutions did not work with the D/F forms and those
  54 # forms were not available for $?.  (PR 49085)
  55
  56 ARFLAGS = -rcv
  57
  58 localvars: lib.a
  59
  60 # $@ = target or archive name   $< = implied source
  61 # $* = target without suffix    $? = sources newer than target
  62 # $% = archive member name
  63 LOCALS = \
  64         "Local variables\n\
  65         \$${@}=\"${@}\" \$${<}=\"${<}\"\n\
  66         \$${*}=\"${*}\" \$${?}=\"${?}\"\n\
  67         \$${%%}=\"${%}\"\n\n"
  68
  69 # $XD = directory part of X     $XF = file part of X
  70 # X is one of the local variables.
  71 LOCAL_ALTERNATIVES = \
  72         "Directory and filename parts of local variables\n\
  73         \$${@D}=\"${@D}\" \$${@F}=\"${@F}\"\n\
  74         \$${<D}=\"${<D}\" \$${<F}=\"${<F}\"\n\
  75         \$${*D}=\"${*D}\" \$${*F}=\"${*F}\"\n\
  76         \$${?D}=\"${?D}\" \$${?F}=\"${?F}\"\n\
  77         \$${%%D}=\"${%D}\" \$${%%F}=\"${%F}\"\n\n"
  78
  79 # Do all kinds of meaningless substitutions on local variables to see
  80 # if they work.  Add, remove and replace things.
  81 VAR2 = .o
  82 VAR3 = foo
  83 LOCAL_SUBSTITUTIONS = \
  84         "Local variable substitutions\n\
  85         \$${@:.o=}=\"${@:.o=}\" \$${<:.c=.C}=\"${<:.c=.C}\"\n\
  86         \$${*:=.h}=\"${*:=.h}\" \$${?:.h=.H}=\"${?:.h=.H}\"\n\
  87         \$${%%:=}=\"${%:=}\"\n\n"
  88
  89 LOCAL_ALTERNATIVE_SUBSTITUTIONS = \
  90         "Target with suffix transformations\n\
  91         \$${@D:=append}=\"${@D:=append}\"\n\
  92         \$${@F:.o=.O}=\"${@F:.o=.O}\"\n\
  93         \n\
  94         Implied source with suffix transformations\n\
  95         \$${<D:r=rr}=\"${<D:r=rr}\"\n\
  96         \$${<F:.c=.C}=\"${<F:.c=.C}\"\n\
  97         \n\
  98         Suffixless target with suffix transformations\n\
  99         \$${*D:.=dot}=\"${*D:.=dot}\"\n\
 100         \$${*F:.a=}=\"${*F:.a=}\"\n\
 101         \n\
 102         Out-of-date dependencies with suffix transformations\n\
 103         \$${?D:ir=}=\"${?D:ir=}\"\n\
 104         \$${?F:.h=.H}=\"${?F:.h=.H}\"\n\
 105         \n\
 106         Member with suffix transformations\n\
 107         \$${%%D:.=}=\"${%D:.=}\"\n\
 108         \$${%%F:\$${VAR2}=\$${VAR}}=\"${%F:${VAR2}=${VAR}}\"\n\n"
 109
 110 .SUFFIXES: .c .o .a
 111
 112 # The system makefiles make the .c.a rule .PRECIOUS with a special source,
 113 # but such a thing is not POSIX compatible.  It's also somewhat useless
 114 # in a test makefile.
 115 .c.a:
 116         @printf ${LOCALS}
 117         @printf ${LOCAL_ALTERNATIVES}
 118         @printf ${LOCAL_SUBSTITUTIONS}
 119         @printf ${LOCAL_ALTERNATIVE_SUBSTITUTIONS}
 120         cc -c -o '${%}' '${<}'
 121         ar ${ARFLAGS} '${@}' '${%}'
 122         rm -f '${%}'
 123
 124 .c.o:
 125         @printf ${LOCALS}
 126         @printf ${LOCAL_ALTERNATIVES}
 127         @printf ${LOCAL_SUBSTITUTIONS}
 128         @printf ${LOCAL_ALTERNATIVE_SUBSTITUTIONS}
 129         cc -c -o '${@}' '${<}'
 130
 131 # Some of these rules are padded with useless extra dependencies just so
 132 # that ${?} has more than one file.
 133
 134 lib.a: lib.a(obj1.o) lib.a(obj2.o) lib.a(obj3.o)
 135         ar -s '${@}'
 136
 137 # Explicit rule where the dependency is an inferred file.  The dependency
 138 # object's name differs from the member's because there was a bug which
 139 # forced a dependency on member even when no such dependency was specified
 140 # (PR 49086).
 141 lib.a(obj1.o): dir/obj_1.o dummy
 142         @printf ${LOCALS}
 143         @printf ${LOCAL_ALTERNATIVES}
 144         @printf ${LOCAL_SUBSTITUTIONS}
 145         @printf ${LOCAL_ALTERNATIVE_SUBSTITUTIONS}
 146         cp 'dir/obj_1.o' '$%'
 147         ar ${ARFLAGS} '${@}' '$%'
 148         rm -f '$%'
 149
 150 # Excplicit rule where the dependency also has an explicit rule.
 151 lib.a(obj2.o): obj2.o
 152         ar ${ARFLAGS} '${@}' '${%}'
 153
 154 # Use .c.a inference with an extra dependency.
 155 lib.a(obj3.o): obj3.h dir/dummy
 156
 157 # Use .c.o inference with an extra dependency.
 158 dir/obj_1.o: dir/obj_1.h
 159
 160 # According to POSIX, $* is only required for inference rules and $<'s
 161 # value is unspecified outside of inference rules.  Strictly speaking
 162 # we shouldn't be expanding them here but who cares.  At least we get
 163 # to check that the program does nothing stupid (like crash) with them.
 164 # The C file is named differently from the object file because there
 165 # was a bug which forced dependencies based on inference rules on all
 166 # applicable targets (PR 49086).
 167 obj2.o: obj_2.c obj_2.h dir/obj_1.h
 168         @printf ${LOCALS}
 169         @printf ${LOCAL_ALTERNATIVES}
 170         @printf ${LOCAL_SUBSTITUTIONS}
 171         @printf ${LOCAL_ALTERNATIVE_SUBSTITUTIONS}
 172         cc -c -o '${@}' 'obj_2.c'
 173
 174 # Hey, this is make, we can make our own test data setup!  obj1.c
 175 # and obj2.c are not used, so they should not get created.  They're here
 176 # as a bait for a regression into the forced dependencies discussed earlier.
 177 obj1.c dir/obj_1.c obj2.c obj_2.c obj3.c:
 178         mkdir -p '${@D}'
 179         printf '#include "${@F:.c=.h}"\nconst char* ${@F:.c=} = "${@}";\n' \
 180             >'${@}'
 181
 182 dir/obj_1.h obj_2.h obj3.h dummy dir/dummy:
 183         mkdir -p '${@D}'
 184         touch '${@}'