perl-modules: link Crypt::SSLeay against our custom-built OpenSSL

$(location @openssl//:gen_dir) returns a path relative to the Bazel
execroot. build_module.pl chdirs into the extracted tarball directory
before invoking Makefile.PL, making the relative path dangle — the
linker silently fell back to system libssl.so.1.1.

Fix: prefix the openssl path with $$PWD in the genrule cmd so it is
absolute and survives the chdir.

Also pass OPENSSL_PREFIX, -I <prefix>/include (CCFLAGS), and correct
-L <prefix>/lib (LDDLFLAGS) so Crypt::SSLeay's Makefile.PL discovers
our OpenSSL headers and libraries rather than the system ones.

CMK-33658

Change-Id: I8e31007d3e37f996a04caff37e44c4cf6840d0b0
(cherry picked from commit 0cf0d40)
(cherry picked from commit e232cf1)

Author: nigelgbanks

omd/packages/perl-modules/BUILD

@@ -66,7 +66,7 @@ genrule(
         export PERL5LIB="$$(dirname $(location @omd_packages//omd/packages/perl-modules:lib/BuildHelper.pm)):$$PWD/perl-modules/lib/perl5:$$PWD/Crypt-SSLeay-0.72"
         FORCE=1 $(location @omd_packages//omd/packages/perl-modules:build_module.pl) -p $$PWD/perl-modules $$(cat $(location perl_module_list_1.txt));
         $(location @omd_packages//omd/packages/perl-modules:build_module.pl) -p $$PWD/perl-modules $$(cat $(location perl_module_list_2.txt));
-        $(location @omd_packages//omd/packages/perl-modules:build_module.pl) -p $$PWD/perl-modules -L $(location @openssl//:gen_dir) $(locations @Crypt-SSLeay//:Crypt-SSLeay-0.72.tar.gz);
+        $(location @omd_packages//omd/packages/perl-modules:build_module.pl) -p $$PWD/perl-modules -L $$PWD/$(location @openssl//:gen_dir) $(locations @Crypt-SSLeay//:Crypt-SSLeay-0.72.tar.gz);
 
         mv perl-modules perl-modules-install
         mkdir -p perl-modules/lib/perl5 perl-modules/bin

omd/packages/perl-modules/lib/BuildHelper.pm

@@ -430,7 +430,7 @@ sub install_module {
         #
         # \\\$\\\$ is required as $$ is the syntax for the Makefile.
         # Also we need to escape it for both perl and the shell.
-        $makefile_opts = "$makefile_opts FORCE=1 CCFLAGS=\"$Config::Config{ccflags} -Wno-implicit-function-declaration -Wno-int-conversion\" LDDLFLAGS=\"-L $OPENSSL $Config::Config{lddlflags} -Wl,-rpath,'\\\$\\\$ORIGIN/../../../../../../../../lib'\" ";
+        $makefile_opts = "$makefile_opts FORCE=1 OPENSSL_PREFIX=$OPENSSL CCFLAGS=\"$Config::Config{ccflags} -Wno-implicit-function-declaration -Wno-int-conversion -I $OPENSSL/include\" LDDLFLAGS=\"-L $OPENSSL/lib $Config::Config{lddlflags}\" ";
     }
     if($modname eq 'List::MoreUtils') {
         system("sed -i -e '/url\\s*=>.*github/d' -e '/perl.*=>\\s*\\\$^V/d' Makefile.PL");