1 files changed, 805 insertions, 0 deletions

diff --git a/testsuite/make.tests b/testsuite/make.tests
new file mode 100755
index 000000000..fabdbe45c
--- /dev/null
+++ b/testsuite/make.tests
@@ -0,0 +1,805 @@
+#!/bin/sh
+
+. ./testing.sh
+unset MAKEFLAGS
+rm -rf make.tempdir
+
+# testing "test name" "command" "expected result" "file input" "stdin"
+
+testing "make basic makefile" \
+        "make -f -" "target\n" "" '
+target:
+        @echo target
+'
+
+testing "make .DEFAULT rule for prerequisite" \
+        "make -f - 2>/dev/null" "source\n" "" '
+.DEFAULT:
+        @echo $@
+target: source
+'
+
+mkdir make.tempdir && cd make.tempdir || exit 1
+touch target.xyz
+testing "make empty command overrides inference rule" \
+        "make -f - target 2>/dev/null" "" "" '
+.SUFFIXES: .xyz
+.xyz:
+        @echo xyz
+target: ;
+'
+cd .. || exit 1; rm -rf make.tempdir 2>/dev/null
+
+# Macros should be expanded before suffix substitution.  The suffixes
+# can be obtained by macro expansion.
+testing "make macro expansion and suffix substitution" \
+        "make -f -" "src1.o src2.o\n" "" '
+DOTC = .c
+DOTO = .o
+SRC1 = src1.c
+SRCS = $(SRC1) src2.c
+target:
+        @echo $(SRCS:$(DOTC)=$(DOTO))
+'
+
+# Indeed, everything after the <colon> can be obtained by macro
+# macro expansion.
+testing "make macro expansion and suffix substitution 2" \
+        "make -f -" "src1.o src2.o\n" "" '
+DOTS = .c=.o
+SRC1 = src1.c
+SRCS = $(SRC1) src2.c
+target:
+        @echo $(SRCS:$(DOTS))
+'
+
+# It should be possible for an inference rule to determine that a
+# prerequisite can be created using an explicit rule.
+mkdir make.tempdir && cd make.tempdir || exit 1
+testing "make inference rule with explicit rule for prerequisite" \
+        "make -f -" "touch x.p\ncat x.p >x.q\n" "" '
+.SUFFIXES: .p .q
+x.q:
+x.p:
+        touch $@
+.p.q:
+        cat $< >$@
+'
+cd .. || exit 1; rm -rf make.tempdir 2>/dev/null
+
+# Austin Group defect report 875 clarifies certain aspects of the
+# behaviour of inference rules.  Study of this resulted in a number
+# of changes to pdpmake, though this test passed anyway.
+mkdir make.tempdir && cd make.tempdir || exit 1
+touch test.j test.k
+testing "make proper handling of inference rules 1" \
+        "make -f -" \
+        ".j.l\n" "" '
+.SUFFIXES: .j .k .l
+.j.l:
+        @echo .j.l
+.k.l:
+        @echo .k.l
+test.l: test.k
+test.j:
+test.k:
+'
+cd .. || exit 1; rm -rf make.tempdir 2>/dev/null
+
+# Check that single-suffix inference rules work.
+mkdir make.tempdir && cd make.tempdir || exit 1
+touch test.sh
+testing "make single-suffix inference rule works" \
+        "make -f - -s; echo $?" \
+        "0\n" "" '
+test:
+'
+cd .. || exit 1; rm -rf make.tempdir 2>/dev/null
+
+# There was a bug where the failure of a build command didn't result
+# in make returning a non-zero exit status.
+testing "make return error if command fails" \
+        "make -f - >/dev/null 2>&1; test \$? -gt 0 && echo OK" "OK\n" "" '
+target:
+        @exit 42
+'
+
+# An equal sign in a command on a target rule was detected as a
+# macro assignment.
+testing "make equal sign in inline command" \
+        "make -f -" "a = a\n" "" '
+a = a
+target:;@echo a = $(a)
+'
+
+# Ensure an inline command on a target rule can be detected even if
+# the semicolon is obfuscated.
+testing "make equal sign in obfuscated inline command" \
+        "make -f -" "a = a\n" "" '
+a = a
+semi = ;
+target:$(semi)@echo a = $(a)
+'
+
+# When a build command fails and the '-k' option has been provided
+# (continue execution on error) no further commands should be executed
+# for the current target.
+testing "make failure of build command with -k" \
+        "make -k -f - 2>/dev/null" "OK\n" "" '
+all: bar baz
+bar:
+        @echo OK
+        @false
+        @echo Not reached
+baz:
+        @:
+'
+# Build commands with a '+' prefix are executed even with the -q option.
+testing "make execute build command with + prefix and -q" \
+        "make -q -f - 2>/dev/null" "OK\n" "" '
+all: bar
+bar:
+        @+echo OK
+'
+
+# The -t option touches files that are out-of-date unless the target
+# has no commands or they're already up-to-date.
+mkdir make.tempdir && cd make.tempdir || exit 1
+touch baz
+testing "make check -t option" \
+        "make -t -f - 2>/dev/null" "touch bar\n" "" '
+all: foo bar baz
+foo:
+bar:
+        @echo bar
+baz:
+        @echo baz
+'
+cd .. || exit 1; rm -rf make.tempdir 2>/dev/null
+
+# Build commands with a '+' prefix are executed even with the -t option.
+mkdir make.tempdir && cd make.tempdir || exit 1
+testing "make execute build command with + prefix and -t" \
+        "make -t -f - 2>/dev/null" "OK\n" "" '
+all: bar
+bar:
+        @+echo OK
+'
+cd .. || exit 1; rm -rf make.tempdir 2>/dev/null
+
+# A macro created using ::= remembers it's of type immediate-expansion.
+# Immediate expansion also occurs when += is used to append to such a macro.
+testing "make appending to immediate-expansion macro" \
+        "make -f -" \
+        "hello 1 2 3\nhello 4 4\n" "" '
+world = 1
+hello ::= hello $(world)
+world = 2
+hello += $(world)
+world = 3
+hello += $(world)
+world = 4
+
+world = 1
+reset ::= hello $(world)
+world = 2
+# No longer immediate-expansion
+reset = hello $(world)
+world = 3
+reset += $(world)
+world = 4
+
+target:
+        @echo $(hello)
+        @echo $(reset)
+'
+
+# Since GNU make and bmake interpret := macro assignments differently,
+# POSIX has ::= for the GNU variant and :::= for BSD.
+testing "make different styles of := macro assignment" \
+        "make -f -" \
+        '65 a a $A\n' "" '
+A = a
+GNU ::= $A
+BSD1 :::= $A
+BSD2 :::= $$A
+A = 65
+
+target:
+        @echo '\''$(A) $(GNU) $(BSD1) $(BSD2)'\''
+'
+
+# Similar to the above but for macro assignments on the command line.
+# POSIX has ::= for the GNU variant and :::= for BSD.
+testing "make := macro assignment on command line" \
+        "make -f - A=a 'GNU::=\$A' 'BSD1:::=\$A' 'BSD2:::=\$\$A' A=65" \
+        '65 a a $A\n' "" '
+target:
+        @echo '\''$(A) $(GNU) $(BSD1) $(BSD2)'\''
+'
+
+# basic pattern macro expansion
+testing "make basic pattern macro expansion" \
+        "make -f -" \
+        "obj/util.o obj/main.o\n" "" '
+SRC = src/util.c src/main.c
+OBJ = $(SRC:src/%.c=obj/%.o)
+
+target:
+        @echo $(OBJ)
+'
+
+# pattern macro expansion; match any value
+testing "make pattern macro expansion; match any value" \
+        "make -f -" \
+        "any_value.o\n" "" '
+SRC = any_value
+OBJ = $(SRC:%=%.o)
+
+target:
+        @echo $(OBJ)
+'
+
+# pattern macro expansion with empty rvalue
+testing "make pattern macro expansion with empty rvalue" \
+        "make -f -" \
+        "\n" "" '
+SRC = util.c main.c
+OBJ = $(SRC:%.c=)
+
+target:
+        @echo $(OBJ)
+'
+
+# pattern macro expansion with multiple <percent> in rvalue
+# POSIX requires the first <percent> to be expanded, others
+# may or may not be expanded.  Permit either case.
+testing "make pattern macro expansion with multiple <percent> in rvalue" \
+        "make -f - | sed 's/mainmainmain/main%%/'" \
+        "main%%\n" "" '
+SRC = main.c
+OBJ = $(SRC:%.c=%%%)
+
+target:
+        @echo $(OBJ)
+'
+
+# pattern macro expansion; zero match
+testing "make pattern macro expansion; zero match" \
+        "make -f -" \
+        "nsnp\n" "" '
+WORD = osop
+REPL = $(WORD:os%op=ns%np)
+
+target:
+        @echo $(REPL)
+'
+
+# Check that MAKE will contain argv[0], e.g make in this case
+testing "make basic MAKE macro expansion" \
+        "make -f -" \
+        "make\n" "" '
+target:
+        @echo $(MAKE)
+'
+
+# Check that MAKE defined as environment variable will overwrite default MAKE
+testing "make MAKE macro expansion; overwrite with env macro" \
+        "MAKE=hello make -f -" \
+        "hello\n" "" '
+target:
+        @echo $(MAKE)
+'
+
+# Check that MAKE defined on the command-line will overwrite MAKE defined in
+# Makefile
+testing "make MAKE macro expansion; overwrite with command-line macro" \
+        "make -f - MAKE=hello" \
+        "hello\n" "" '
+MAKE = test
+
+target:
+        @echo $(MAKE)
+'
+
+# POSIX draft states that if make was invoked using relative path, MAKE must
+# contain absolute path, not just argv[0]
+testing "make MAKE macro expansion; turn relative path into absolute" \
+        "../runtest-tempdir-links/make -f -" \
+        "ok\n" "" '
+target:
+        @test -e "$(MAKE)" && test "$(MAKE)" = "$$(env which make)" && echo ok
+'
+
+# $? contains prerequisites newer than target, file2 in this case
+# $^ has all prerequisites, file1 and file2
+touch -t 202206171200 file1
+touch -t 202206171201 target
+touch -t 202206171202 file2
+testing "make compare \$? and \$^ internal macros" \
+        "make -f -" \
+        "file2\nfile1 file2\n" "" '
+target: file1 file2
+        @echo $?
+        @echo $^
+'
+rm -f target file1 file2
+
+# Phony targets are executed (once) even if a matching file exists.
+# A .PHONY target with no prerequisites is ignored.
+touch -t 202206171201 target
+testing "make phony target" \
+        "make -f -" \
+        "phony\n" "" '
+.PHONY: target
+.PHONY:
+target:
+        @echo phony
+'
+rm -f target
+
+# Phony targets aren't touched with -t
+testing "make phony target not touched" \
+        "make -t -f - >/dev/null && test -f target && echo target" \
+        "" "" '
+.PHONY: target
+target:
+        @:
+'
+rm -f target
+
+# Include files are created or brought up-to-date
+mkdir make.tempdir && cd make.tempdir || exit 1
+testing "make create include file" \
+        "make -f -" \
+        "made\n" "" '
+target:
+        @echo $(VAR)
+mk:
+        @echo "VAR = made" >mk
+include mk
+'
+cd .. || exit 1; rm -rf make.tempdir 2>/dev/null
+
+# Include files are created or brought up-to-date even when the -n
+# option is given.
+mkdir make.tempdir && cd make.tempdir || exit 1
+testing "make create include file even with -n" \
+        "make -n -f -" \
+        "echo made\n" "" '
+target:
+        @echo $(VAR)
+mk:
+        @echo "VAR = made" >mk
+include mk
+'
+cd .. || exit 1; rm -rf make.tempdir 2>/dev/null
+
+# Failure to create an include file isn't an error.  (Provided the
+# include line is ignoring non-existent files.)
+testing "make failure to create include file is OK" \
+        "make -f -" \
+        "OK\n" "" '
+target:
+        @echo OK
+mk:
+        @:
+-include mk
+'
+
+# $^ skips duplicate prerequisites, $+ doesn't
+mkdir make.tempdir && cd make.tempdir || exit 1
+touch file1 file2 file3
+testing "make skip duplicate entries in \$^ but not \$+" \
+        "make -f -" \
+        "file1 file2 file3\nfile1 file2 file2 file3 file3\n" "" '
+target: file1 file2 file2 file3 file3
+        @echo $^
+        @echo $+
+'
+cd .. || exit 1; rm -rf make.tempdir 2>/dev/null
+
+# Assign the output of a shell command to a macro.
+testing "make shell assignment" \
+        "make -f -" \
+        "1 2 3   4\n" "" '
+hello != echo 1; echo 2; echo 3; echo; echo
+
+target:
+        @echo "$(hello) 4"
+'
+
+# Nested macro expansion is allowed.  This should be compatible
+# with other implementations.
+testing "make nested macro expansion" \
+        "make -f -" "0 bc\n1 d\n2\n3\n4 bcd\n5 bcd\n" "" '
+a = b
+b = c
+c = d
+$(a:.q=.v)$(b:.z=.v) = bc
+bcd = bcd
+target:
+        @echo 0 $(bc)
+        @echo 1 $($($(a)))
+        @echo 2 $($(a) $(b) $(c))
+        @echo 3 $($a $b $c)
+        @echo 4 $($(a)$(b)$(c))
+        @echo 5 $($a$b$c)
+'
+
+# .WAIT is allowed as a prerequisite.  Since parallel builds aren't
+# implemented it doesn't have any effect.
+mkdir make.tempdir && cd make.tempdir || exit 1
+touch file1 file2
+testing "make .WAIT is allowed as a prerequisite" \
+        "make -f -" \
+        "file1 file2\n" "" '
+target: file1 .WAIT file2
+        @echo $?
+'
+cd .. || exit 1; rm -rf make.tempdir 2>/dev/null
+
+# Escaped newlines inside macro expansions in commands get different
+# treatment than those outside.  In POSIX 2017 the output is 'a b ab'.
+testing "make replace escaped NL in macro in command with space" \
+        "make -f -" \
+        "a b a b\n" "" '
+M=word
+N=${M:word=a\\
+b}
+target:
+        @echo ${N} ${M:word=a\\
+b}
+'
+
+# The CURDIR macro is supported in POSIX 2024.
+testing "make CURDIR macro" \
+        "make -f -" \
+        "OK\n" "" '
+target:
+        @test "$(CURDIR)" = "$$(pwd -P)" && echo OK
+'
+# The CURDIR environment variable doesn't affect the macro
+export CURDIR=/you/are/here
+testing "make CURDIR macro not affected by environment" \
+        "make -f -" \
+        "OK\n" "" '
+target:
+        @test "$(CURDIR)" != "/you/are/here" && echo OK
+'
+
+# The -e option makes the CURDIR macro match the environment
+testing "make with -e CURDIR macro is affected by the environment" \
+        "make -e -f -" \
+        "/you/are/here\n" "" '
+target:
+        @echo $(CURDIR)
+'
+unset CURDIR
+
+# The fix for an equal sign in an inline command on a target rule broke
+# a complex chain of macro assignments generated by autotools.
+testing "make complex chain of macro assignments" \
+        "make -f -" "flag 1\n" "" '
+FLAG_ = $(FLAG_$(VALUE))
+FLAG_0 = flag 0
+FLAG_1 = flag 1
+MYFLAG = $(FLAG_$(VALUE))
+VALUE = 1
+
+target:
+        @echo $(MYFLAG)
+'
+
+# POSIX 2024 permits additional characters in macro and target names
+testing "make allow - and / in target names, - in macro names" \
+        "make -f -" \
+        "/hello\nhel-lo\nmac-ro\n" "" '
+target: ./hello hel-lo
+        @echo $(mac-ro)
+./hello:
+        @echo /hello
+hel-lo:
+        @echo hel-lo
+mac-ro = mac-ro
+'
+
+testing "make double-colon rule" \
+        "make -f -" "target1\ntarget2\n" "" '
+target::
+        @echo target1
+target::
+        @echo target2
+'
+
+# There was a bug whereby the modification time of a file created by
+# double-colon rules wasn't correctly updated.  This test checks that
+# the bug is now fixed.
+mkdir make.tempdir && cd make.tempdir || exit 1
+touch -t 202206171200 file1
+touch -t 202206171201 intermediate
+touch -t 202206171202 target
+touch -t 202206171203 file2
+testing "make target depends on prerequisite updated by double-colon rule" \
+        "make -f -" \
+        "file2\n" "" '
+target: intermediate
+        @cat intermediate
+intermediate:: file1
+        @echo file1 >>intermediate
+intermediate:: file2
+        @echo file2 >>intermediate
+'
+cd .. || exit 1; rm -rf make.tempdir 2>/dev/null
+
+# Use chained inference rules to determine prerequisites.
+mkdir make.tempdir && cd make.tempdir || exit 1
+touch target.p
+testing "make chained inference rules" \
+        "make -s -f - target.s" \
+        "target.q\ntarget.r\ntarget.s\n" "" '
+.SUFFIXES: .p .q .r .s
+.p.q:
+        @cp $< $*.q
+        @echo $*.q
+.q.r:
+        @cp $< $*.r
+        @echo $*.r
+.r.s:
+        @cp $< $*.s
+        @echo $*.s
+'
+cd .. || exit 1; rm -rf make.tempdir 2>/dev/null
+
+# Suffixes with multiple periods are supported
+mkdir make.tempdir && cd make.tempdir || exit 1
+touch x.c.c
+testing "make support multi-period suffixes" \
+        "make -f -" "cat x.c.c >x.o.o\nx\n" "" '
+.SUFFIXES: .c.c .o.o
+x.o.o:
+.c.c.o.o:
+        cat $< >$@
+        @echo $*
+'
+cd .. || exit 1; rm -rf make.tempdir 2>/dev/null
+
+# Suffixes with no periods are supported
+mkdir make.tempdir && cd make.tempdir || exit 1
+touch filex
+testing "make support suffixes without any periods" \
+        "make -f -" "cp filex fileh\nfile\ncp filex filez\nfile\n" "" '
+.SUFFIXES: x h z
+all: fileh filez
+fileh:
+filez: filex
+        cp filex filez
+        @echo $*
+xh:
+        cp $< $@
+        @echo $*
+'
+cd .. || exit 1; rm -rf make.tempdir 2>/dev/null
+
+# make supports *, ? and [] wildcards in targets and prerequisites
+mkdir make.tempdir && cd make.tempdir || exit 1
+touch -t 202206171201 t1a t2aa t3b
+touch s1a s2aa s3b
+testing "make expand wildcards in filenames" \
+        "make -f - t1a t2aa t3b" \
+        "t1a s1a s2aa s3b\nt2aa s1a s2aa s3b\nt3b s1a s2aa s3b\n" "" '
+t1? t2* t3[abc]: s1? s2* s3[abc]
+        @echo $@ $?
+'
+cd .. || exit 1; rm -rf make.tempdir 2>/dev/null
+
+# A '#' character in a macro expansion doesn't start a comment
+testing "make hash in macro expansion isn't a comment" \
+        "make -f -" \
+        ": hash # hash\n" "" '
+HASH = hash
+hash = $(HASH:hash=#)
+target:
+        : hash $(hash) hash
+'
+
+# A '#' character can be escaped with a backslash
+testing "make backslash-escaped hash isn't a comment" \
+        "make -f -" \
+        ": hash # hash\n" "" '
+hash = \\#
+target:
+        : hash $(hash) hash
+'
+
+# A '#' character in a command line doesn't start a comment
+testing "make hash in command line isn't a comment" \
+        "make -f -" \
+        ": hash # hash\n" "" '
+target:
+        : hash # hash
+'
+
+# Austin Group defect report 875 (mentioned above) actually used
+# suffixes '.a .b .c'.  This doesn't matter in POSIX mode but it
+# caused a failure (now fixed) when chained inference rules were
+# allowed.  The '.a.c' and the built-in '.c.a' inference rules
+# resulted in a loop.
+mkdir make.tempdir && cd make.tempdir || exit 1
+touch test.a test.b
+testing "make proper handling of inference rules 2" \
+        "make -f -" \
+        ".a.c\n" "" '
+.SUFFIXES: .a .b .c
+.a.c:
+        @echo .a.c
+.b.c:
+        @echo .b.c
+test.c: test.b
+test.a:
+test.b:
+'
+cd .. || exit 1; rm -rf make.tempdir 2>/dev/null
+
+# Don't use the shell -e option when running commands.
+testing "make no shell -e option when running commands" \
+        "make -f -" "OK\n" "" '
+target:
+        @false; echo OK
+'
+
+# Macros and targets may be mixed on the command line
+testing "make allow mixed macros and targets" \
+        "make -f - FOO=foo foo BAR=bar bar" "foo\nbar\nfoo\nbar\n" "" '
+foo:
+        @echo $(FOO)
+        @echo $(BAR)
+bar:
+        @echo $(FOO)
+        @echo $(BAR)
+'
+
+# $* and $< are supported for target rules
+mkdir make.tempdir && cd make.tempdir || exit 1
+touch src.c src.h
+testing 'make support $* and $< for target rules' \
+        "make -f -" "src.c src.h\nsrc.o\nsrc\nsrc.c\n" "" '
+src.o: src.c src.h
+        @echo "$?"
+        @echo "$@"
+        @echo "$*"
+        @echo "$<"
+'
+cd .. || exit 1; rm -rf make.tempdir 2>/dev/null
+
+# ifeq/ifneq conditionals are supported
+testing 'make support ifeq and ifneq conditionals' \
+        "make -f -" "A OK\nB OK\n" "" '
+A = a
+B = b
+target:
+ifeq ($(A),a)
+        @echo A OK
+else
+        @echo A not OK
+endif
+ifneq "a" "$B"
+        @echo B OK
+endif
+'
+
+# An empty original suffix indicates that every word should have
+# the new suffix added.  If neither suffix is provided the words
+# remain unchanged.
+testing "make macro expansion and suffix substitution 3" \
+        "make -f -" "src1.c src2.c\nsrc1 src2\n" "" '
+SRCS = src1 src2
+target:
+        @echo $(SRCS:=.c)
+        @echo $(SRCS:=)
+'
+
+# Skip duplicate entries in $? and $^
+mkdir make.tempdir && cd make.tempdir || exit 1
+touch -t 202206171200 file1 file3
+touch -t 202206171201 target
+touch -t 202206171202 file2
+testing "make skip duplicate entries in \$? and \$^" \
+        "make -f -" \
+        "file2\nfile1 file2 file3\n" "" '
+target: file1 file2 file2 file3 file3
+        @echo $?
+        @echo $^
+'
+cd .. || exit 1; rm -rf make.tempdir 2>/dev/null
+
+# Skip duplicate entries in $? and $^, with each double-colon rule
+# handled separately
+mkdir make.tempdir && cd make.tempdir || exit 1
+touch -t 202206171200 file1 file3
+touch -t 202206171201 target
+touch -t 202206171202 file2
+testing "make skip duplicate entries: double-colon rules" \
+        "make -f -" \
+        "file2\nfile1 file3 file2\nfile2\nfile2 file3\n" "" '
+target:: file1 file3 file1 file2 file3
+        @echo $?
+        @echo $^
+target:: file2 file3 file3
+        @echo $?
+        @echo $^
+'
+cd .. || exit 1; rm -rf make.tempdir 2>/dev/null
+
+# Skip duplicate entries in $? and $^, with each double-colon rule
+# handled separately.  No prerequisites out-of-date in the first.
+mkdir make.tempdir && cd make.tempdir || exit 1
+touch -t 202206171200 file1 file3
+touch -t 202206171201 target
+touch -t 202206171202 file2
+testing "make skip duplicate entries: double-colon rules, only second invoked" \
+        "make -f -" \
+        "file2\nfile2 file3\n" "" '
+target:: file1 file3 file1 file3
+        @echo $?
+        @echo $^
+target:: file2 file3 file3
+        @echo $?
+        @echo $^
+'
+cd .. || exit 1; rm -rf make.tempdir 2>/dev/null
+
+# .DEFAULT rules with no commands or some prerequisites are ignored.
+# .DEFAULT rules with commands can be redefined.
+testing "make: .DEFAULT rule" \
+        "make -f - default" "default2\n" "" '
+.DEFAULT: ignored
+.DEFAULT:
+        @echo default1
+.DEFAULT:
+        @echo default2
+target:
+'
+
+testing "make: double-colon rule" \
+        "make -f -" "target1\ntarget2\n" "" '
+target::
+        @echo target1
+target::
+        @echo target2
+'
+
+# Double-colon rules didn't work properly if their target was phony:
+# - they didn't ignore the presence of a file matching the target name;
+# - they were also invoked as if they were a single-colon rule.
+mkdir make.tempdir && cd make.tempdir || exit 1
+touch -t 202206171200 file1
+touch -t 202206171201 target
+testing "make phony target of double-colon rule" \
+        "make -f - 2>&1" \
+        "unconditional\nconditional\n" "" '
+.PHONY: target
+target::
+        @echo unconditional
+target:: file1
+        @echo conditional
+file1:
+        @touch file1
+'
+cd .. || exit 1; rm -rf make.tempdir 2>/dev/null
+
+# GNU make and BSD make don't allow the use of inference rules
+# for phony targets.  In POSIX mode the output is "phony.xyz\n".
+mkdir make.tempdir && cd make.tempdir || exit 1
+touch phony.xyz
+testing "make don't use inference rule for phony target" \
+        "make -f -" "make: nothing to be done for phony\n" "" '
+.PHONY: phony
+.SUFFIXES: .xyz
+.xyz:
+        @echo $<
+phony:
+'
+cd .. || exit 1; rm -rf make.tempdir 2>/dev/null
+
+exit $FAILCOUNT