Add some sanity checks:

. a check for valid components at USE_LINUX_APPS;
. a check if a component is defined for the given linux distro
  (has apropriate port).

1 files changed, 19 insertions, 0 deletions

diff --git a/Mk/bsd.linux-apps.mk b/Mk/bsd.linux-apps.mk
index cbe8d751e242..453cf1a0542f 100644
--- a/Mk/bsd.linux-apps.mk
+++ b/Mk/bsd.linux-apps.mk
@@ -342,6 +342,25 @@ webauth_DEPENDS=	gtk2 atk pango fontconfig
 
 # End component definition section
 
+# Let's check if components from USE_LINUX_APPS exist at _LINUX_APPS_ALL
+.  for component in ${USE_LINUX_APPS}
+.    if ${_LINUX_APPS_ALL:M${component}}==""
+IGNORE=	bsd.linux-apps.mk test failed: Invalid component USE_LINUX_APPS=${component}
+.    endif
+.  endfor
+
+# Let's check if components from USE_LINUX_APPS have corresponding <app>_DETECT
+# i.e. if a corresponding <app>_FILE defined for given LINUX_DIST_SUFFIX
+.  for component in ${USE_LINUX_APPS}
+.    if ${${component}_DETECT}==""
+.      if defined(${component}${LINUX_DIST_SUFFIX:S/-/_/}_FILE)
+IGNORE=	bsd.linux-apps.mk test failed: The component ${component} is empty for LINUX_DIST_SUFFIX=${LINUX_DIST_SUFFIX} (the corresponding variable ${component}${LINUX_DIST_SUFFIX:S/-/_/}_FILE is empty)
+.      else
+IGNORE=	bsd.linux-apps.mk test failed: The component ${component} is not defined for LINUX_DIST_SUFFIX=${LINUX_DIST_SUFFIX} (the corresponding variable ${component}${LINUX_DIST_SUFFIX:S/-/_/}_FILE is not defined)
+.      endif
+.    endif
+.  endfor
+
 # Recursively expand all dependencies for each app at _LINUX_APPS_ALL
 .  for component in ${_LINUX_APPS_ALL}
 .    for subcomponent in ${${component}_DEPENDS}