Fix MacOS X CI build

.github/workflows/ci.yml

@@ -47,10 +47,14 @@ jobs:
         uses: actions/checkout@v6
       - name: Install system dependencies
         run: brew install gexiv2
+      - name: Work around gexiv2 versioned naming discrepance
+        run: ln -s /opt/homebrew/lib/pkgconfig/gexiv2-0.16.pc /opt/homebrew/lib/pkgconfig/gexiv2.pc
       - name: Install Rust and Cargo
         run: curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
       - name: Show environment info
         run: |
+          ls -AlhR /opt/homebrew/Cellar/gexiv2
+          ls -AlhR /opt/homebrew/lib/pkgconfig
           rustc --version --verbose && echo ""
           cargo --version --verbose
       - name: Build

SETUP.md

@@ -51,8 +51,8 @@ brew update
 brew install gexiv2 pkgconf
 ```
 
-For the build to succeed, you will have to tell `pkg-config` where Homebrew
-installed some relevant libraries, using:
+For the build to succeed, you may have to tell `pkgconf` where Homebrew
+installed relevant libraries, using `PKG_CONFIG_PATH`. For example,
 
 ```shell
 export PKG_CONFIG_PATH="/usr/local/opt/libffi/lib/pkgconfig"

build.rs

@@ -22,7 +22,7 @@ fn main() {
         .unwrap_or_else(|e| {
             eprintln!(
                 "\nThe gexiv2 library was not found by pkg-config/pkgconf on your system.\n\n\
-                 Consult the README.md file for suggestions on how to acquire it."
+                 Consult README.md or SETUP.md for suggestions on how to acquire it."
             );
             panic!("{}", e);
         });