--as-cran enables _R_CHECK_PACKAGES_USED_IN_DEMO_

git-svn-id: https://svn.r-project.org/R/trunk@88013 00db46b3-68df-0310-9c12-caf00c1e9a41

Author: smeyer

doc/NEWS.Rd

@@ -580,7 +580,11 @@
       \command{autoconf}-generated \command{configure} scripts.
 
       \item \command{R CMD check} gains option \option{--run-demo} to
-      check demo scripts analogously to tests.
+      check demo scripts analogously to tests.  This includes a check
+      for undeclared package dependencies: it can also be enabled
+      separately by setting the environment variable
+      \env{_R_CHECK_PACKAGES_USED_IN_DEMO_} to a true value
+      (as done by \command{R CMD check --as-cran}).
 
       \item \code{R CMD build} now supports \option{--compression=zstd}
       on platforms with sufficient support for \command{zstd}.

doc/manual/R-ints.texi

@@ -4264,7 +4264,8 @@ Default: false (but true for CRAN submission checks).
 @item _R_CHECK_PACKAGES_USED_IN_DEMO_
 Control whether R scripts in the @file{demo} directory should be checked
 for packages used but not declared in the @file{DESCRIPTION} file.
-Default: false unless command-line option @option{--run-demo} is specified.
+Default: false unless command-line option @option{--run-demo} is
+specified (but true for CRAN submission checks).
 
 @item _R_CHECK_SHLIB_OPENMP_FLAGS_
 Check correct and portable use of @code{SHLIB_OPENMP_*FLAGS} in
@@ -4637,6 +4638,7 @@ _R_CHECK_UNDOC_USE_ALL_NAMES_=true
 _R_CHECK_S3_METHODS_SHOW_POSSIBLE_ISSUES_=true
 _R_CHECK_RD_NOTE_LOST_BRACES_=true
 _R_CHECK_XREFS_NOTE_MISSING_PACKAGE_ANCHORS_=true
+_R_CHECK_PACKAGES_USED_IN_DEMO_=true
 @end example
 
 @noindent

src/library/tools/R/check.R

@@ -7415,6 +7415,7 @@ add_dummies <- function(dir, Log)
 ##        Sys.setenv("_R_USE_STRICT_R_HEADERS_" = "TRUE")
         Sys.setenv("_R_CHECK_S3_METHODS_SHOW_POSSIBLE_ISSUES_" = "TRUE")
         Sys.setenv("_R_CHECK_XREFS_NOTE_MISSING_PACKAGE_ANCHORS_" = "TRUE")
+        Sys.setenv("_R_CHECK_PACKAGES_USED_IN_DEMO_" = "TRUE")
         R_check_vc_dirs <- TRUE
         R_check_executables_exclusions <- FALSE
         R_check_doc_sizes2 <- TRUE