diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 957174a6..70c01b93 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -39,7 +39,6 @@ jobs:
           - "--features \"network bundled_proj\""
           - "--features \"network geo-types\""
           - "--features \"bundled_proj geo-types\""
-          - "--features \"bundled_proj bundled_proj_tiff \""
           - "--features \"network bundled_proj geo-types\""
     container:
       image: ${{ matrix.container_image }}
diff --git a/Cargo.toml b/Cargo.toml
index 842eafde..da5ec463 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -26,9 +26,8 @@ members = ["proj-sys"]
 [features]
 default = ["geo-types"]
 bundled_proj = [ "proj-sys/bundled_proj" ]
-bundled_proj_tiff = [ "proj-sys/bundled_proj_tiff" ]
 pkg_config = [ "proj-sys/pkg_config" ]
-network = ["bundled_proj_tiff", "reqwest"]
+network = ["reqwest"]
 
 [dev-dependencies]
 approx = "0.3"
diff --git a/proj-sys/CHANGES.md b/proj-sys/CHANGES.md
index a58068a8..ad095a8b 100644
--- a/proj-sys/CHANGES.md
+++ b/proj-sys/CHANGES.md
@@ -1,3 +1,11 @@
+# UNRELEASED
+
+- BREAKING: Remove `bundled_proj_tiff` feature and assume system libproj has
+  the default enabled tiff support. Otherwise, the current setup would
+  unnecessarily build libproj from source in some cases, e.g. the geo crate's
+  proj network integration would compile libproj from source.
+    - <https://github.com/georust/proj/pull/92>
+
 # 0.20.1
 - Fix docs to refer to correct libproj version
 
diff --git a/proj-sys/Cargo.toml b/proj-sys/Cargo.toml
index fcfdb1e6..aace89d8 100644
--- a/proj-sys/Cargo.toml
+++ b/proj-sys/Cargo.toml
@@ -24,7 +24,6 @@ nobuild = []
 bundled_proj = []
 # `pkg_config` feature is deprecated and does nothing
 pkg_config = []
-bundled_proj_tiff = ["bundled_proj"]
 
 [package.metadata.docs.rs]
 features = [ "nobuild" ] # This feature will be enabled during the docs.rs build
diff --git a/proj-sys/build.rs b/proj-sys/build.rs
index 4a081e24..05af87ce 100644
--- a/proj-sys/build.rs
+++ b/proj-sys/build.rs
@@ -1,9 +1,5 @@
-use bindgen;
-use cmake;
 use flate2::read::GzDecoder;
 use std::fs::File;
-
-use pkg_config;
 use std::env;
 use std::path::PathBuf;
 use tar::Archive;
@@ -22,7 +18,7 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
         pkg_config::Config::new()
         .atleast_version(MINIMUM_PROJ_VERSION)
         .probe("proj")
-        .and_then(|pk| {
+        .map(|pk| {
             eprintln!("found acceptable libproj already installed at: {:?}", pk.link_paths[0]);
             if let Ok(val) = &env::var("_PROJ_SYS_TEST_EXPECT_BUILD_FROM_SRC") {
                 if val != "0" {
@@ -35,7 +31,7 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
             println!("cargo:rustc-link-search=native={:?}", pk.link_paths[0]);
             println!("cargo:rustc-link-lib=proj");
 
-            Ok(pk.include_paths[0].clone())
+            pk.include_paths[0].clone()
         })
         .or_else(|err| {
             eprintln!("pkg-config unable to find existing libproj installation: {}", err);
@@ -95,17 +91,15 @@ fn build_from_source() -> Result<std::path::PathBuf, Box<dyn std::error::Error>>
     config.define("BUILD_PROJINFO", "OFF");
     config.define("BUILD_PROJSYNC", "OFF");
     config.define("ENABLE_CURL", "OFF");
-    let tiff_support = cfg!(feature = "bundled_proj_tiff");
-    config.define("ENABLE_TIFF", if tiff_support { "ON" } else { "OFF" });
     let proj = config.build();
     // Tell cargo to tell rustc to link libproj, and where to find it
     // libproj will be built in $OUT_DIR/lib
-    
+
     //proj likes to create proj_d when configured as debug and on MSVC, so link to that one if it exists
     if proj.join("lib").join("proj_d.lib").exists() {
-      println!("cargo:rustc-link-lib=static=proj_d");
+        println!("cargo:rustc-link-lib=static=proj_d");
     } else {
-      println!("cargo:rustc-link-lib=static=proj");
+        println!("cargo:rustc-link-lib=static=proj");
     }
     println!(
         "cargo:rustc-link-search=native={}",
@@ -121,9 +115,7 @@ fn build_from_source() -> Result<std::path::PathBuf, Box<dyn std::error::Error>>
     );
     // The PROJ library needs SQLite and the C++ standard library.
     println!("cargo:rustc-link-lib=dylib=sqlite3");
-    if tiff_support {
-        println!("cargo:rustc-link-lib=dylib=tiff");
-    }
+    println!("cargo:rustc-link-lib=dylib=tiff");
     if cfg!(target_os = "linux") {
         println!("cargo:rustc-link-lib=dylib=stdc++");
     } else if cfg!(target_os = "macos") {
diff --git a/src/proj.rs b/src/proj.rs
index be8ee2c8..7a4ff4d5 100644
--- a/src/proj.rs
+++ b/src/proj.rs
@@ -555,6 +555,9 @@ impl Proj {
                 }
             };
 
+            // comparing against float point sentinel values is a reasonable usage of exact
+            // floating point comparison
+            #[allow(clippy::float_cmp)]
             let area = if west != -1000.0 && south != -1000.0 && east != -1000.0 && north != -1000.0
             {
                 Some(Area {
@@ -908,8 +911,6 @@ impl Drop for ProjBuilder {
 
 #[cfg(test)]
 mod test {
-    use crate::proj;
-
     use super::*;
 
     #[derive(Debug)]