Get rid of patchelf requirement

OpenSSL has the configuration option shlib_variant, so we can use that instead.

This works for version 1.x and 3.x, so it would make the build script more similar between the two versions.

Also, this avoid issues that can come from patchelf, as this patch comes after a bug found in patchelf 0.18 that created wrongly aligned libraries. See NixOS/patchelf#492.

README.md

@@ -58,4 +58,3 @@ are correct for your environment.
 ### Build Prerequisites
 
 The build script was tested against `bash` and `zsh` on Linux and macOS.
-The `patchelf` command is required when building for OpenSSL 3.

build_ssl.sh

@@ -2,7 +2,6 @@
 
 ## Prerequisites
 ## The script supports builds from Linux and macOS.
-## The 'patchelf' command is required for OpenSSL 3.
 ## set BUILD_DIR and OUTPUT_ROOT variables to use custom build and output paths.
 ## Set NDK_ROOT_PREFIX to use custom Android NDK root path that contains various
 ## NDK versions.
@@ -97,8 +96,7 @@ configure_ssl() {
     arch=$2
     ndk=$3
     build_type=$4
-    output_dir=$5
-    log_file=$6
+    log_file=$5
 
     nkd_path="$NDK_ROOT_PREFIX/$ndk"
 
@@ -119,12 +117,39 @@ configure_ssl() {
         fi
     done
 
-    case $output_dir in
-    ssl_1.1)
+    case $ssl_version in
+    1.1.*)
         ANDROID_API=21
+        # use suffix _1_1.so with OpenSSL 1.1.x (up to Qt 6.4)
+        patch -p0 <<EOF
+--- Configurations/15-android.conf
++++ Configurations/15-android.conf
+@@ -190,6 +190,8 @@
+         bn_ops           => sub { android_ndk()->{bn_ops} },
+         bin_cflags       => "-pie",
+         enable           => [ ],
++        shared_extension => ".so",
++        shlib_variant => "_1_1",
+     },
+     "android-arm" => {
+         ################################################################
+EOF
         ;;
-    ssl_3)
+    3.*)
         ANDROID_API=23
+        # use suffix _3.so with OpenSSL 3.1.x (Qt 6.5.0 and above)
+        patch -p0 <<EOF
+--- Configurations/15-android.conf
++++ Configurations/15-android.conf
+@@ -192,6 +192,7 @@
+         bin_lflags       => "-pie",
+         enable           => [ ],
+         shared_extension => ".so",
++        shlib_variant => "_3",
+     },
+     "android-arm" => {
+         ################################################################
+EOF
         ;;
     esac
 
@@ -137,55 +162,29 @@ configure_ssl() {
     make depend
 }
 
-build_ssl_1_1() {
-    # Qt up to 6.4 is using OpenSSL 1.1.x but the library is suffixed with _1_1.so
-    output_dir=$1
-    log_file=$2
-
-    echo "Building..."
-    make -j$(nproc) SHLIB_VERSION_NUMBER= SHLIB_EXT=_1_1.so build_libs 2>&1 1>>${log_file} \
-        | tee -a ${log_file} || exit 1
-}
-
-build_ssl_3() {
-    # Qt 6.5.0+ is using OpenSSL 3.1.x but the library is suffixed with _3.so
-    output_dir=$1
-    log_file=$2
+build_ssl() {
+    log_file=$1
 
     echo "Building..."
     make -j$(nproc) SHLIB_VERSION_NUMBER= build_libs 2>&1 1>>${log_file} \
         | tee -a ${log_file} || exit 1
-
-    mv libcrypto.so libcrypto_3.so
-    mv libssl.so libssl_3.so
-
-    # SHLIB_EXT is no longer supported for OpenSSL, so we need to manually
-    # use patchelf to modify SONAME and NEEDED sections to set the correct
-    # suffix for the shared libraries.
-    # See https://github.com/openssl/openssl/issues/20854
-    patchelf --set-soname libcrypto_3.so libcrypto_3.so || exit 1
-    patchelf --set-soname libssl_3.so libssl_3.so || exit 1
-    patchelf --replace-needed libcrypto.so libcrypto_3.so libssl_3.so || exit 1
 }
 
 strip_libs() {
-    lib_suffix=$1
-
-    llvm-strip --strip-all libcrypto_$lib_suffix.so
-    llvm-strip --strip-all libssl_$lib_suffix.so
+    find . -name "libcrypto_*.so" -exec llvm-strip --strip-all {} \;
+    find . -name "libssl_*.so" -exec llvm-strip --strip-all {} \;
 }
 
 copy_build_artefacts() {
-    lib_suffix=$1
-    output_dir=$2
+    output_dir=$1
 
-    cp libcrypto_$lib_suffix.so "$output_dir/libcrypto_$lib_suffix.so" || exit 1
-    cp libssl_$lib_suffix.so "$output_dir/libssl_$lib_suffix.so" || exit 1
+    cp libcrypto_*.so "$output_dir/" || exit 1
+    cp libssl_*.so "$output_dir/" || exit 1
     cp libcrypto.a libssl.a "$output_dir" || exit 1
 
     # Create relative non-versioned symlinks
-    ln -s "libcrypto_$lib_suffix.so" "$output_dir/libcrypto.so"
-    ln -s "libssl_$lib_suffix.so" "$output_dir/libssl.so"
+    ln -s $(find . -name "libcrypto_*.so" -exec basename {} \;) "${output_dir}/libcrypto.so"
+    ln -s $(find . -name "libssl_*.so" -exec basename {} \;) "${output_dir}/libssl.so"
     ln -s "../include" "$output_dir/include"
 }
 
@@ -214,8 +213,7 @@ for build_type in "${build_types[@]}"; do
             pushd "openssl-$ssl_version-$arch" || exit 1
 
             log_file="build_${arch}_${ssl_version}.log"
-            configure_ssl ${ssl_version} ${arch} "${ndk}" "${build_type}" \
-                ${version_build_dir} ${log_file}
+            configure_ssl ${ssl_version} ${arch} "${ndk}" "${build_type}" ${log_file}
 
             # Delete existing build artefacts
             output_dir="$OUTPUT_ROOT/$build_type/$version_build_dir/$qt_arch"
@@ -231,23 +229,9 @@ for build_type in "${build_types[@]}"; do
                 find "$output_dir/../" -name "*.def" -delete
             fi
 
-            case $version_build_dir in
-                ssl_1.1)
-                    build_ssl_1_1 ${output_dir} ${log_file}
-                    suffix="1_1"
-                    ;;
-                ssl_3)
-                    build_ssl_3 ${output_dir} ${log_file}
-                    suffix="3"
-                    ;;
-                *)
-                    echo "Unhandled OpenSSL version $version_build_dir"
-                    exit 1
-                    ;;
-            esac
-
-            strip_libs "$suffix"
-            copy_build_artefacts "$suffix" ${output_dir}
+            build_ssl ${log_file}
+            strip_libs
+            copy_build_artefacts ${output_dir}
 
 
             popd