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Merge rust-bitcoin/rust-secp256k1#488: Support non-WASM platforms that are missing `string.h` 

92b733386f Support non-WASM platforms that are missing `string.h` (Matt Corallo)

Pull request description:

  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`.

ACKs for top commit:
  tcharding:
    ACK 92b733386f
  apoelstra:
    ACK 92b733386f

Tree-SHA512: 81cbc5023f349681a3bef138506d9314be948b8b7b78bb2b2ffacf43b0c97d92ea67238105009a94b05a0a3adbd4113ed68f79a0a303708d95c6a7f520d5170e
This commit is contained in:
Andrew Poelstra 2022-11-14 14:31:51 +00:00
parent 8508680c79 92b733386f
commit 5a546945ad
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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") base_config.file("depend/secp256k1/contrib/lax_der_parsing.c")
.file("depend/secp256k1/src/precomputed_ecmult_gen.c") .file("depend/secp256k1/src/precomputed_ecmult_gen.c")
.file("depend/secp256k1/src/precomputed_ecmult.c") .file("depend/secp256k1/src/precomputed_ecmult.c")
.file("depend/secp256k1/src/secp256k1.c") .file("depend/secp256k1/src/secp256k1.c");
.compile("libsecp256k1.a");
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");
}
} }