Fix missing Pango support in R 3.x for Ubuntu 22

builder/Dockerfile.ubuntu-2204

@@ -18,6 +18,9 @@ RUN chmod 0777 /opt
 # Override the default pager used by R
 ENV PAGER /usr/bin/pager
 
+# R 3.x requires PCRE2 for Pango support on Ubuntu 22
+ENV INCLUDE_PCRE2_IN_R_3 yes
+
 COPY package.ubuntu-2204 /package.sh
 COPY build.sh .
 ENTRYPOINT ./build.sh

builder/build.sh

@@ -97,7 +97,7 @@ compile_r() {
   #
   # The INCLUDE_PCRE2_IN_R_3 environment variable can be set to include PCRE2
   # in R 3.x builds, for distributions where PCRE2 is always required.
-  # In Debian 11, Pango now depends on PCRE2, so R 3.x will not be compiled with
+  # In Debian 11/Ubuntu 22, Pango now depends on PCRE2, so R 3.x will not be compiled with
   # Pango support if the PCRE2 pkg-config file is missing.
   if [[ "${1}" =~ ^3 ]] && pkg-config --exists libpcre2-8 && [ -z "$INCLUDE_PCRE2_IN_R_3" ]; then
     mkdir -p /tmp/pcre2

builder/package.ubuntu-2204

@@ -4,10 +4,10 @@ if [[ ! -d /tmp/output/ubuntu-2204 ]]; then
   mkdir -p /tmp/output/ubuntu-2204
 fi
 
-# R 3.x requires PCRE1
-pcre_lib='libpcre2-dev'
+# R 3.x requires PCRE1. On Ubuntu 22, R 3.x also requires PCRE2 for Pango support.
+pcre_lib_flags='-d libpcre2-dev'
 if [[ "${R_VERSION}" =~ ^3 ]]; then
-  pcre_lib='libpcre3-dev'
+  pcre_lib_flags='-d libpcre2-dev -d libpcre3-dev'
 fi
 
 fpm \
@@ -40,7 +40,7 @@ fpm \
   -d libpango-1.0-0 \
   -d libpangocairo-1.0-0 \
   -d libpaper-utils \
-  -d ${pcre_lib} \
+  ${pcre_lib_flags} \
   -d libpng16-16 \
   -d libreadline8 \
   -d libtcl8.6 \