diff --git a/Cargo.toml b/Cargo.toml
index 0a346a7..14d9171 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -33,12 +33,3 @@ raw-cpuid = "11.6.0"
 
 [target.'cfg(target_os = "freebsd")'.dev-dependencies]
 tempfile = "3.3.0"
-
-[profile.release]
-strip = true
-opt-level = "z"
-lto = true
-# Defaultimproves compile times, but prevents some optimizations.
-codegen-units = 1
-# Remove stack unwinder and backtrace.
-panic = "abort"
diff --git a/src/deptree.rs b/src/deptree.rs
index c0f3f93..fc6a44d 100644
--- a/src/deptree.rs
+++ b/src/deptree.rs
@@ -96,7 +96,7 @@ impl fmt::Display for DepMode {
             DepMode::LdCache => write!(f, "[ld-so.hints]"),
             #[cfg(target_os = "netbsd")]
             DepMode::LdCache => write!(f, "[ld.so.conf]"),
-            #[cfg(any(target_os = "illumos", target_os = "solaris"))]
+            #[cfg(any(target_os = "illumos", target_os = "solaris", target_os = "redox"))]
             DepMode::LdCache => write!(f, "[unknown]"),
             #[cfg(target_os = "macos")]
             DepMode::LdCache => write!(f, "[dyld cache]"),
diff --git a/src/elf.rs b/src/elf.rs
index 1b1add2..9b7e621 100644
--- a/src/elf.rs
+++ b/src/elf.rs
@@ -526,6 +526,10 @@ fn check_elf_header(elc: &ElfInfo) -> bool {
 fn check_elf_header(elc: &ElfInfo) -> bool {
     elc.ei_osabi == ELFOSABI_SYSV || elc.ei_osabi == ELFOSABI_SOLARIS
 }
+#[cfg(any(target_os = "redox"))]
+fn check_elf_header(elc: &ElfInfo) -> bool {
+    elc.ei_osabi == ELFOSABI_SYSV
+}
 
 fn match_elf_header(a1: &ElfInfo, a2: &ElfInfo) -> bool {
     a1.ei_class == a2.ei_class && a1.ei_data == a2.ei_data && a1.e_machine == a2.e_machine
@@ -893,7 +897,7 @@ fn load_so_cache<P: AsRef<Path>>(ld_cache: &mut Option<LoaderCache>, _binary: &P
         *ld_cache = ld_so_conf_netbsd::parse_ld_so_conf(&Path::new("/etc/ld.so.conf")).ok()
     }
 }
-#[cfg(any(target_os = "illumos", target_os = "solaris"))]
+#[cfg(any(target_os = "illumos", target_os = "solaris", target_os = "redox"))]
 fn load_so_cache<P: AsRef<Path>>(_ld_cache: &mut Option<LoaderCache>, _binary: &P, _ecl: &ElfInfo) {
 }
 
diff --git a/src/elf/system_dirs.rs b/src/elf/system_dirs.rs
index 6641544..e19aebe 100644
--- a/src/elf/system_dirs.rs
+++ b/src/elf/system_dirs.rs
@@ -245,7 +245,7 @@ pub fn get_system_dirs(
         .collect())
 }
 
-#[cfg(any(target_os = "openbsd", target_os = "netbsd"))]
+#[cfg(any(target_os = "openbsd", target_os = "netbsd", target_os = "redox"))]
 pub fn get_system_dirs(
     _interp: &Option<String>,
     _is_musl: bool,