perl/tcl: fix /usr/share/man/man3/Thread.3 conflicts

While installing perl-doc and tcl-doc to image, there is a file conflicts
at do_rootfs
...
|file /usr/share/man/man3/Thread.3 conflicts between attempted installs of
perl-doc-5.30.1-r0.core2_64 and tcl-doc-8.6.10-r0.core2_64
...

Use update-alternatives to fix

(From OE-Core rev: 47df8c0dd8ff86af97e6c6d217fb8d69ebec24e5)

Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 5 insertions, 1 deletions

diff --git a/meta/recipes-devtools/perl/perl_5.30.1.bb b/meta/recipes-devtools/perl/perl_5.30.1.bb
index 9b1f1af072..6e0b2007fb 100644
--- a/meta/recipes-devtools/perl/perl_5.30.1.bb
+++ b/meta/recipes-devtools/perl/perl_5.30.1.bb
@@ -32,7 +32,7 @@ SRC_URI[perl-cross.sha256sum] = "edce0b0c2f725e2db3f203d6d8e9f3f7161256f5d159055
 
 S = "${WORKDIR}/perl-${PV}"
 
-inherit upstream-version-is-even
+inherit upstream-version-is-even update-alternatives
 
 DEPENDS += "zlib virtual/crypt"
 
@@ -240,6 +240,10 @@ FILES_${PN}-module-cpan += "${libdir}/perl5/${PV}/CPAN \
                           "
 FILES_${PN}-module-unicore += "${libdir}/perl5/${PV}/unicore"
 
+ALTERNATIVE_PRIORITY = "40"
+ALTERNATIVE_${PN}-doc = "Thread.3"
+ALTERNATIVE_LINK_NAME[Thread.3] = "${mandir}/man3/Thread.3"
+
 # Create a perl-modules package recommending all the other perl
 # packages (actually the non modules packages and not created too)
 ALLOW_EMPTY_${PN}-modules = "1"