pkg_install-check_os_version.diff

diff --git a/pkgtools/pkg_install/files/add/perform.c b/pkgtools/pkg_install/files/add/perform.c
index e78e6190ac5a..c5239d14a329 100644
--- a/pkgtools/pkg_install/files/add/perform.c
+++ b/pkgtools/pkg_install/files/add/perform.c
@@ -151,6 +151,13 @@ compatible_platform(const char *opsys, const char *host, const char *package)
 {
     int i = 0;
 
+    /*
+     * If the user has set the CHECK_OS_VERSION variable to "no" then skip any
+     * version checks and assume they know what they're doing.
+     */
+    if (strcasecmp(check_os_version, "no") == 0)
+	return 1;
+
     /* returns 1 if host and package operating system match */
     if (strcmp(host, package) == 0)
 	return 1;
diff --git a/pkgtools/pkg_install/files/lib/lib.h b/pkgtools/pkg_install/files/lib/lib.h
index c79e6a6e1cda..f46a25233c46 100644
--- a/pkgtools/pkg_install/files/lib/lib.h
+++ b/pkgtools/pkg_install/files/lib/lib.h
@@ -447,6 +447,7 @@ extern const char *cert_chain_file;
 extern const char *certs_packages;
 extern const char *certs_pkg_vulnerabilities;
 extern const char *check_eol;
+extern const char *check_os_version;
 extern const char *check_vulnerabilities;
 extern const char *config_file;
 extern const char *config_pkg_dbdir;
diff --git a/pkgtools/pkg_install/files/lib/parse-config.c b/pkgtools/pkg_install/files/lib/parse-config.c
index 10bac8202a7a..af92f3d08a81 100644
--- a/pkgtools/pkg_install/files/lib/parse-config.c
+++ b/pkgtools/pkg_install/files/lib/parse-config.c
@@ -66,6 +66,7 @@ const char *cert_chain_file;
 const char *certs_packages;
 const char *certs_pkg_vulnerabilities;
 const char *check_eol = "yes";
+const char *check_os_version = "yes";
 const char *check_vulnerabilities;
 static const char *config_cache_connections;
 static const char *config_cache_connections_host;
@@ -100,6 +101,7 @@ static struct config_variable {
 	{ "CERTIFICATE_CHAIN", &cert_chain_file },
 	{ "CHECK_LICENSE", &do_license_check },
 	{ "CHECK_END_OF_LIFE", &check_eol },
+	{ "CHECK_OS_VERSION", &check_os_version },
 	{ "CHECK_VULNERABILITIES", &check_vulnerabilities },
 	{ "DEFAULT_ACCEPTABLE_LICENSES", &default_acceptable_licenses },
 	{ "GPG", &gpg_cmd },
diff --git a/pkgtools/pkg_install/files/lib/pkg_install.conf.5.in b/pkgtools/pkg_install/files/lib/pkg_install.conf.5.in
index d5ad8b449485..0c83dbd70eff 100644
--- a/pkgtools/pkg_install/files/lib/pkg_install.conf.5.in
+++ b/pkgtools/pkg_install/files/lib/pkg_install.conf.5.in
@@ -93,6 +93,10 @@ Missing license conditions are considered an error.
 During vulnerability checks, consider packages that have reached end-of-life
 as vulnerable.
 This option is enabled by default.
+.It Dv CHECK_OS_VERSION
+If "no", pkg_add will not warn if the host OS version does not match the OS
+version the package was built on.
+The default is "yes".
 .It Dv CHECK_OSABI
 If "no", osabi package does not check OS version.
 The default is "yes".
diff --git a/pkgtools/pkg_install/files/lib/pkg_install.conf.cat.in b/pkgtools/pkg_install/files/lib/pkg_install.conf.cat.in
index 01b891f3c711..bf14902706ea 100644
--- a/pkgtools/pkg_install/files/lib/pkg_install.conf.cat.in
+++ b/pkgtools/pkg_install/files/lib/pkg_install.conf.cat.in
@@ -60,6 +60,11 @@ DDEESSCCRRIIPPTTIIOONN
              During vulnerability checks, consider packages that have reached
              end-of-life as vulnerable.  This option is enabled by default.
 
+     CHECK_OS_VERSION
+             If "no", pkg_add will not warn if the host OS version does not
+             match the OS version the package was built on.  The default is
+             "yes".
+
      CHECK_OSABI
              If "no", osabi package does not check OS version.  The default is
              "yes".