fable output

src/Package/Library/postgresql.php

@@ -37,6 +37,10 @@ class postgresql extends LibraryPackage
     #[PatchDescription('Various patches before building PostgreSQL')]
     public function patchBeforeBuild(): bool
     {
+        // These patches target the autoconf/Make build; the Windows build uses Meson (see buildWin).
+        if (SystemTarget::getTargetOS() === 'Windows') {
+            return true;
+        }
         // skip the test on platforms where libpq infrastructure may be provided by statically-linked libraries
         FileSystem::replaceFileStr("{$this->getSourceDir()}/src/interfaces/libpq/Makefile", 'invokes exit\'; exit 1;', 'invokes exit\';');
         // disable shared libs build
@@ -53,6 +57,72 @@ class postgresql extends LibraryPackage
         return true;
     }
 
+    #[BuildFor('Windows')]
+    public function buildWin(LibraryPackage $lib): void
+    {
+        $src = $lib->getSourceDir();
+        $build_root = $lib->getBuildRootPath();
+        $lib_dir = $lib->getLibDir();
+        $inc_dir = $lib->getIncludeDir();
+        $build = "{$src}\\build";
+
+        // Export the public pg_char_to_encoding()/pg_encoding_to_char() from libpgcommon.a so a
+        // statically-linked libpq.a resolves them (PHP's ext/pgsql relies on them too). This mirrors
+        // the Unix build's -UUSE_PRIVATE_ENCODING_FUNCS patch, but for the Meson build.
+        FileSystem::replaceFileStr(
+            "{$src}\\src\\common\\meson.build",
+            "'c_args': ['-DUSE_PRIVATE_ENCODING_FUNCS'],",
+            "'c_args': [],"
+        );
+
+        // Fresh Meson build dir (Meson refuses to reuse a dir configured differently).
+        if (is_dir($build)) {
+            FileSystem::removeDir($build);
+        }
+
+        // Meson's OpenSSL detection link-tests CRYPTO_new_ex_data; our static libcrypto needs its
+        // Win32 deps (and zlib, since OpenSSL was built with zlib) on the link line to succeed.
+        $ld = 'ws2_32.lib gdi32.lib advapi32.lib crypt32.lib user32.lib secur32.lib zlibstatic.lib';
+
+        $configure = 'meson setup build'
+            . ' --prefix=' . escapeshellarg($build_root)
+            . ' -Ddefault_library=static'   // static libpq.a / libpgcommon.a / libpgport.a
+            . ' -Db_vscrt=mt'               // /MT static CRT, matching the rest of the build
+            . ' -Dssl=openssl'
+            // Everything libpq doesn't need: keeps deps minimal and avoids server-only detection.
+            . ' -Dzlib=disabled -Dnls=disabled -Dreadline=disabled -Dicu=disabled'
+            . ' -Dlz4=disabled -Dzstd=disabled -Dtap_tests=disabled'
+            . ' -Dplperl=disabled -Dplpython=disabled -Dpltcl=disabled'
+            . ' -Dgssapi=disabled -Dldap=disabled -Dlibxml=disabled -Dlibxslt=disabled'
+            . ' -Dextra_include_dirs=' . escapeshellarg("{$build_root}\\include")
+            . ' -Dextra_lib_dirs=' . escapeshellarg($lib_dir);
+
+        // Build only the three frontend static libs (not the server) — keeps it fast and avoids
+        // needing every backend dependency. meson/ninja/win_bison/win_flex/perl come from PATH.
+        $targets = 'src/interfaces/libpq/libpq.a src/common/libpgcommon.a src/port/libpgport.a';
+
+        cmd()->cd($src)
+            ->setEnv([
+                'LIB' => $lib_dir . ';' . (getenv('LIB') ?: ''),
+                'LDFLAGS' => $ld,
+            ])
+            ->exec($configure)
+            ->exec("ninja -C build {$targets}");
+
+        // Install the static libs under the names PHP's ext/pgsql + frankenphp expect (.lib).
+        FileSystem::createDir($lib_dir);
+        FileSystem::createDir($inc_dir);
+        FileSystem::copy("{$build}\\src\\interfaces\\libpq\\libpq.a", "{$lib_dir}\\libpq.lib");
+        FileSystem::copy("{$build}\\src\\common\\libpgcommon.a", "{$lib_dir}\\libpgcommon.lib");
+        FileSystem::copy("{$build}\\src\\port\\libpgport.a", "{$lib_dir}\\libpgport.lib");
+
+        // Install the public libpq headers (PG18 no longer ships pg_config_ext.h).
+        FileSystem::copy("{$src}\\src\\interfaces\\libpq\\libpq-fe.h", "{$inc_dir}\\libpq-fe.h");
+        FileSystem::copy("{$src}\\src\\include\\postgres_ext.h", "{$inc_dir}\\postgres_ext.h");
+        FileSystem::createDir("{$inc_dir}\\libpq");
+        FileSystem::copy("{$src}\\src\\include\\libpq\\libpq-fs.h", "{$inc_dir}\\libpq\\libpq-fs.h");
+    }
+
     #[BuildFor('Darwin')]
     #[BuildFor('Linux')]
     public function buildUnix(PackageInstaller $installer, PackageBuilder $builder): void