R-cran-Rcpp: update to 1.0.8.

Removing -D__MUSL__, as it is defined by R globally
cf. 626e5eb25

srcpkgs/R-cran-Rcpp/patches/1.0.5--musl.patch

@@ -0,0 +1,28 @@
+From f78a62797de3d02b2ca841e3aa240bab961912cf Mon Sep 17 00:00:00 2001
+From: Piotr Wójcik <chocimier@tlen.pl>
+Date: Sat, 29 Jan 2022 17:51:20 +0100
+Subject: musl
+
+Relying on __MUSL__ being defined worked with R-cran build style,
+as R template exports it. With other build styles things failed.
+Detect glibc instead.
+---
+ inst/include/Rcpp/exceptions_impl.h | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/inst/include/Rcpp/exceptions_impl.h b/inst/include/Rcpp/exceptions_impl.h
+index 8f45028..74763d9 100644
+--- a/inst/include/Rcpp/exceptions_impl.h
++++ b/inst/include/Rcpp/exceptions_impl.h
+@@ -34,7 +34,7 @@
+     defined(__HAIKU__)   || \
+     defined(__ANDROID__)
+ #  define RCPP_DEMANGLER_ENABLED 0
+-# elif defined(__GNUC__)  || defined(__clang__)
++# elif defined(__GLIBC__)
+ #  include <execinfo.h>
+ #  define RCPP_DEMANGLER_ENABLED 1
+ # else
+-- 
+2.35.0
+

srcpkgs/R-cran-Rcpp/template

@@ -1,16 +1,11 @@
 # Template file for 'R-cran-Rcpp'
 pkgname=R-cran-Rcpp
-version=1.0.5
-revision=2
+version=1.0.8
+revision=1
 build_style=R-cran
 short_desc="Seamless R and C++ Integration"
 maintainer="Florian Wagner <florian@wagner-flo.net>"
 license="GPL-2.0-or-later"
 homepage="http://www.rcpp.org/"
-checksum=b8462c643bcc6fe3b0e9caee9e0cd76c5f7f0e34ee2e7397f93c4c43885c5c04
-
-pre_install() {
-	case "$XBPS_TARGET_MACHINE" in
-		*-musl) export PKG_CXXFLAGS+=" -D__MUSL__";;
-	esac
-}
+changelog="https://raw.githubusercontent.com/RcppCore/Rcpp/master/ChangeLog"
+checksum=879f9296bc045ac4ed464578723bd37fcabbbdaa30aaaf070cf953e329f678ee