fix compatibility with upcoming units 0.7-0

r-quantities · Feb 21, 2021 · e99957e · e99957e
1 parent fb24ea7
commit e99957e
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diff --git a/DESCRIPTION b/DESCRIPTION
@@ -1,7 +1,7 @@
 Package: constants
 Type: Package
 Title: Reference on Constants, Units and Uncertainty
-Version: 1.0.0
+Version: 1.0.1
 Authors@R: c(
     person("Iñaki", "Ucar", email="iucar@fedoraproject.org",
       role=c("aut", "cph", "cre"), comment=c(ORCID="0000-0001-6403-5550")))

diff --git a/NEWS.md b/NEWS.md
@@ -1,3 +1,7 @@
+# constants 1.0.1
+
+- Fix compatibility with `units` 0.7-0.
+
 # constants 1.0.0
 
 Update to version 8.1, the 2018 CODATA recommended values (#7 addressing #6).

diff --git a/R/constants.R b/R/constants.R
@@ -153,8 +153,13 @@ set_correlations <- function() {
 
   if (requireNamespace("units", quietly = TRUE)) {
     # define the speed of light
-    try(units::remove_symbolic_unit("c"), silent=TRUE)
-    units::install_conversion_constant("c", "m/s", syms$c0)
+    if (utils::packageVersion("units") < "0.7-0") {
+      try(units::remove_symbolic_unit("c"), silent=TRUE)
+      units::install_conversion_constant("c", "m/s", syms$c0)
+    } else {
+      units::remove_unit("c")
+      units::install_unit("c", paste(syms$c0, "m/s"))
+    }
 
     syms_with_units <<- Map(
       units::set_units, syms, constants::codata$unit, mode="standard")