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fix: RcppParallel disable-TBB source patch (env var was a no-op) #106

Merged
pat-s merged 1 commit from fix/rcppparallel-disable-tbb into main 2026-06-30 13:27:01 +00:00
Conversation 0 Commits 1 Files changed 2 +19 -3
2 changed files with 19 additions and 3 deletions
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16
local/patches/RcppParallel/disable-tbb.patch Normal file
View file

@ -0,0 +1,16 @@
diff --git a/src/Makevars.in b/src/Makevars.in
index be8445f..faee771 100644
--- a/src/Makevars.in
+++ b/src/Makevars.in
@@ -60,7 +60,10 @@ else
endif
ifeq ($(UNAME), Linux)
- USE_TBB=Linux
+ # bincraft patch: the bundled Intel TBB build hangs/fails on musl (Alpine)
+ # and newer toolchains (g++ 15). Skip it (leave USE_TBB unset) and force the
+ # TinyThread backend so RcppParallel still builds.
+ PKG_CXXFLAGS += -DRCPP_PARALLEL_USE_TBB=0
endif
ifeq ($(UNAME), SunOS)

6
local/patches/registry.json
View file

@ -3,10 +3,10 @@
"package": "RcppParallel",
"versions": "*",
"platforms": ["alpine", "ubuntu-2604"],
"env": { "RCPP_PARALLEL_USE_TBB": "0" },
"env": {},
"configure_args": [],
"makevars": {},
"patch": null,
"reason": "bundled Intel TBB fails to build on musl and on newer toolchains (e.g. g++ 15 on ubuntu-2604); disabling TBB falls back to TinyThread"
"patch": "RcppParallel/disable-tbb.patch",
"reason": "bundled Intel TBB build hangs/fails on musl (Alpine) and newer toolchains (g++ 15 on ubuntu-2604); patch unsets USE_TBB and forces -DRCPP_PARALLEL_USE_TBB=0 so RcppParallel skips the bundled build and uses the TinyThread backend"
}
]