perlcross: check the file if patched or not

After the commit(60dcb230f6 perl: split perl-cross into its own recipe)
introduced, the source files mainly come from two parts, one is from
SRI_URI during do_fetch and the other with below means during do_configure.
do_configure_prepend() {
    cp -rfp ${STAGING_DATADIR_NATIVE}/perl-cross/* ${S}
}

And the source files will be changed during do_compile with below
logic in Makefile.
$(CROSSPATCHED): %.applied: %.patch
        patch -p1 -i $< && touch $@

And there comes build failure with below steps:
 $ bitbake perl-native

Make a change as below
 $ git diff
 diff --git a/meta/recipes-devtools/perl-cross/perlcross_1.3.6.bb b/meta/recipes-devtools/perl-cross/perlcross_1.3.6.bb
 index b77bbd1fd4..4c5e35ab80 100644
 --- a/meta/recipes-devtools/perl-cross/perlcross_1.3.6.bb
 +++ b/meta/recipes-devtools/perl-cross/perlcross_1.3.6.bb
 @@ -33,6 +33,7 @@ do_compile () {
  do_install_class-native() {
      mkdir -p ${D}/${datadir}/perl-cross/
      cp -rf ${S}/* ${D}/${datadir}/perl-cross/
 +    echo "test" > ${D}/${datadir}/perl-cross/testfile
 }

 $ bitbake perl-native
 | NOTE: make -j 48
 | make crosspatch
 | make[1]: Entering directory '/buildarea1/myu2/wr_build/wr1021_20210616_perl/build/tmp-glibc/work/x86_64-linux/perl-native/5.34.0-r0/perl-5.34.0'
 | patch -p1 -i cnf/diffs/perl5-5.34.0/time-hires.patch && touch cnf/diffs/perl5-5.34.0/time-hires.applied
 | patch -p1 -i cnf/diffs/perl5-5.34.0/xconfig.patch && touch cnf/diffs/perl5-5.34.0/xconfig.applied
 | patch -p1 -i cnf/diffs/perl5-5.34.0/posix-makefile.patch && touch cnf/diffs/perl5-5.34.0/posix-makefile.applied
 | File dist/Time-HiRes/Makefile.PL is read-only; trying to patch anyway
 | patching file dist/Time-HiRes/Makefile.PL
 | Reversed (or previously applied) patch detected!  Assume -R? [n]
 | Apply anyway? [n]
 | Skipping patch.
 | 4 out of 4 hunks ignored -- saving rejects to file dist/Time-HiRes/Makefile.PL.rej
 | patch -p1 -i cnf/diffs/perl5-5.34.0/test-commonsense.patch && touch cnf/diffs/perl5-5.34.0/test-commonsense.applied
 | File perl.h is read-only; trying to patch anyway
 | patching file perl.h
 | Reversed (or previously applied) patch detected!  Assume -R? [n]
 | Apply anyway? [n]
 | Skipping patch.
 | 1 out of 1 hunk ignored -- saving rejects to file perl.h.rej
 | make[1]: *** [Makefile:64: cnf/diffs/perl5-5.34.0/time-hires.applied] Error 1
 [snip]

It's because the source files patched twice, so check the file if patched
or not to avoid the source files patched more than one time to fix the
build failure as above.

(From OE-Core rev: 2a71a1f308b7f97d83bd23b0f8e733543841efad)

Signed-off-by: Mingli Yu <mingli.yu@windriver.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/perl-cross/files/0001-Makefile-check-the-file-if-patched-or-not.patch

@@ -0,0 +1,31 @@
+From 24a3e0c48f9ebe473b5f1078663e275c27d0537f Mon Sep 17 00:00:00 2001
+From: Mingli Yu <mingli.yu@windriver.com>
+Date: Fri, 2 Jul 2021 09:08:21 +0000
+Subject: [PATCH] Makefile: check the file if patched or not
+
+Check the file if patched or not to avoid patched more than
+one time.
+
+Upstream-Status: Inappropriate (OE-specific)
+
+Signed-off-by: Mingli Yu <mingli.yu@windriver.com>
+---
+ Makefile | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/Makefile b/Makefile
+index f4a26f5..7bc748e 100644
+--- a/Makefile
++++ b/Makefile
+@@ -61,7 +61,7 @@ miniperlmain$O: $(CROSSPATCHED)
+ # Original versions are not saved anymore; patch generally takes care of this,
+ # and if that fails, reaching for the source tarball is the safest option.
+ $(CROSSPATCHED): %.applied: %.patch
+-	patch -p1 -i $< && touch $@
++	test ! -f $@ && (patch -p1 -i $< && touch $@)
+ 
+ # ---[ common ]-----------------------------------------------------------------
+ 
+-- 
+2.29.2
+

meta/recipes-devtools/perl-cross/perlcross_1.3.6.bb

@@ -17,6 +17,7 @@ SRC_URI = "https://github.com/arsv/perl-cross/releases/download/${PV}/perl-cross
            file://0001-configure_path.sh-do-not-hardcode-prefix-lib-as-libr.patch \
            file://determinism.patch \
            file://0001-cnf-configure_func_sel.sh-disable-thread_safe_nl_lan.patch \
+           file://0001-Makefile-check-the-file-if-patched-or-not.patch \
            "
 UPSTREAM_CHECK_URI = "https://github.com/arsv/perl-cross/releases/"