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sys/build.rs: LIBSQLITE3_FLAGS hook

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Enables compiling bundled sources with different flags.
Env variable name modeled after LIBSQLITE3_SYS_BUNDLING.
May want to println!("cargo:warning=...") instead of panicking.
This commit is contained in:
Dubiousjim 2020-06-10 17:06:47 -04:00 committed by Thom Chiovoloni
parent 32df49ca34
commit a9b700c841
1 changed files with 13 additions and 0 deletions
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13
libsqlite3-sys/build.rs
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@ -127,6 +127,19 @@ mod build_bundled {
} }
println!("cargo:rerun-if-env-changed=SQLITE_MAX_EXPR_DEPTH"); println!("cargo:rerun-if-env-changed=SQLITE_MAX_EXPR_DEPTH");
if let Ok(extras) = env::var("LIBSQLITE3_FLAGS") {
for extra in extras.split_whitespace() {
if extra.starts_with("-D") || extra.starts_with("-U") {
cfg.flag(extra);
} else if extra.starts_with("SQLITE_") {
cfg.flag(&format!("-D{}", extra));
} else {
panic!("Don't understand {} in LIBSQLITE3_FLAGS", extra);
}
}
}
println!("cargo:rerun-if-env-changed=LIBSQLITE3_FLAGS");
cfg.compile("libsqlite3.a"); cfg.compile("libsqlite3.a");
println!("cargo:lib_dir={}", out_dir); println!("cargo:lib_dir={}", out_dir);