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rust-secp256k1-unsafe-fast
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Support non-WASM platforms that are missing `string.h` 

Dunno why we haven't seen this elsewhere, but when trying to build
locally for an ARM embedded target `secp256k1-sys` failed to
compile as it was missing `string.h`, just like WASM.

This patch adds a trivial fallback - if we fail to compile
initially we unconditionally retry with the wasm-sysroot, giving us
a valid `string.h`.
This commit is contained in:
Matt Corallo 2022-10-06 16:06:12 +00:00
parent 576e10b23e
commit 92b733386f
1 changed files with 9 additions and 2 deletions
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11
secp256k1-sys/build.rs
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@ -62,7 +62,14 @@ fn main() {
base_config.file("depend/secp256k1/contrib/lax_der_parsing.c")
.file("depend/secp256k1/src/precomputed_ecmult_gen.c")
.file("depend/secp256k1/src/precomputed_ecmult.c")
.file("depend/secp256k1/src/secp256k1.c")
.compile("libsecp256k1.a");
.file("depend/secp256k1/src/secp256k1.c");
if base_config.try_compile("libsecp256k1.a").is_err() {
// Some embedded platforms may not have, eg, string.h available, so if the build fails
// simply try again with the wasm sysroot (but without the wasm type sizes) in the hopes
// that it works.
base_config.include("wasm/wasm-sysroot");
base_config.compile("libsecp256k1.a");
}
}