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Match upstream PCRE2_SYS_STATIC env variable behavior #2

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Match upstream PCRE2_SYS_STATIC env variable behavior #2

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8 changes: 5 additions & 3 deletions pcre2-sys/build.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -130,7 +130,8 @@ fn feature_enabled(feature: &str) -> bool {
fn main() {
let do_utf8 = feature_enabled("UTF8");
let do_utf32 = feature_enabled("UTF32");
let wants_static = feature_enabled("STATIC_PCRE2");
let wants_static =
feature_enabled("STATIC_PCRE2") || env::var_os("PCRE2_SYS_STATIC") == Some("1".into());

if !do_utf8 && !do_utf32 {
panic!("Must enable at least one of the UTF8 or UTF32 features");
Expand All @@ -140,10 +141,11 @@ fn main() {
let target = env::var("TARGET").unwrap();

// Don't link to a system library if we want a static build.
let do_static = wants_static
let do_static = (wants_static
|| target.contains("musl")
|| (do_utf8 && pkg_config::probe_library("libpcre2-8").is_err())
|| (do_utf32 && pkg_config::probe_library("libpcre2-32").is_err());
|| (do_utf32 && pkg_config::probe_library("libpcre2-32").is_err()))
&& env::var_os("PCRE2_SYS_STATIC") != Some("0".into());
if !do_static {
return;
}
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