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LIBSQLITE3_FLAGS for bundled -> SQLITE_FLAGS

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This flag was added in a9b700c but never documented. Here we change the
name to more closely follow SQLITE_MAX_VARIABLE_NUMBER etc; and
document its existence in README.md.
This commit is contained in:
Dubiousjim 2020-12-07 17:58:50 -05:00
parent d916f7ad00
commit 50dbc17490
2 changed files with 4 additions and 4 deletions
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2
README.md
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@ -131,7 +131,7 @@ You can adjust this behavior in a number of ways:
version = "0.24.2"
features = ["bundled"]
```
* When using the `bundled` feature, the build script will honor `SQLITE_MAX_VARIABLE_NUMBER` and `SQLITE_MAX_EXPR_DEPTH` variables.
* When using the `bundled` feature, the build script will honor `SQLITE_MAX_VARIABLE_NUMBER` and `SQLITE_MAX_EXPR_DEPTH` variables. It will also honor a `SQLITE_FLAGS` variable, which can have a format like `"-USQLITE_ALPHA -DSQLITE_BETA SQLITE_GAMMA ..."`. That would disable the `SQLITE_ALPHA` flag, and set the `SQLITE_BETA` and `SQLITE_GAMMA` flags. (The initial `-D` can be omitted, as on the last one.)
* When linking against a SQLite library already on the system (so *not* using the `bundled` feature), you can set the `SQLITE3_LIB_DIR` environment variable to point to a directory containing the library. You can also set the `SQLITE3_INCLUDE_DIR` variable to point to the directory containing `sqlite3.h`.
* Installing the sqlite3 development packages will usually be all that is required, but

6
libsqlite3-sys/build.rs
View File

@ -138,18 +138,18 @@ mod build_bundled {
}
println!("cargo:rerun-if-env-changed=SQLITE_MAX_EXPR_DEPTH");
if let Ok(extras) = env::var("LIBSQLITE3_FLAGS") {
if let Ok(extras) = env::var("SQLITE_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);
panic!("Don't understand {} in SQLITE_FLAGS", extra);
}
}
}
println!("cargo:rerun-if-env-changed=LIBSQLITE3_FLAGS");
println!("cargo:rerun-if-env-changed=SQLITE_FLAGS");
cfg.compile("libsqlite3.a");