Add Visual Studio 2026 support

src/Package/Library/gettext_win.php

@@ -22,6 +22,7 @@ public function validate(): void
     {
         $ver = WindowsUtil::findVisualStudio();
         $vs_ver_dir = match ($ver['major_version']) {
+            '18', // VS 2026 reuses the VS2022 (MSVC17) solution, which msbuild builds via forward compatibility.
             '17' => '\MSVC17',
             '16' => '\MSVC16',
             default => throw new EnvironmentException("Current VS version {$ver['major_version']} is not supported yet!"),
@@ -44,7 +45,9 @@ public function build(LibraryPackage $lib): void
     {
         $vs_ver_dir = ApplicationContext::get('gettext_win_vs_ver_dir');
         cmd()->cd("{$lib->getSourceDir()}{$vs_ver_dir}\\libintl_static")
-            ->exec('msbuild libintl_static.vcxproj /t:Rebuild /p:Configuration=Release /p:Platform=x64 /p:WindowsTargetPlatformVersion=10.0');
+            // WholeProgramOptimization (/GL) emits LTCG objects that frankenphp's lld-link cannot
+            // read ("is not a native COFF file"); disable it so the .lib stays plain COFF.
+            ->exec('msbuild libintl_static.vcxproj /t:Rebuild /p:Configuration=Release /p:Platform=x64 /p:WindowsTargetPlatformVersion=10.0 /p:WholeProgramOptimization=false');
         FileSystem::createDir($lib->getLibDir());
         FileSystem::createDir($lib->getIncludeDir());
         // libintl_a.lib is the static library output; copy as libintl.lib for linker compatibility

src/Package/Library/libffi_win.php

@@ -21,6 +21,7 @@ public function validate(): void
     {
         $ver = WindowsUtil::findVisualStudio();
         $vs_ver_dir = match ($ver['major_version']) {
+            '18', // VS 2026 reuses the vs17 solution, which msbuild builds via forward compatibility.
             '17' => '\win32\vs17_x64',
             '16' => '\win32\vs16_x64',
             default => throw new EnvironmentException("Current VS version {$ver['major_version']} is not supported!"),
@@ -33,7 +34,9 @@ public function build(LibraryPackage $lib): void
     {
         $vs_ver_dir = ApplicationContext::get('libffi_win_vs_ver_dir');
         cmd()->cd("{$lib->getSourceDir()}{$vs_ver_dir}")
-            ->exec('msbuild libffi-msvc.sln /t:Rebuild /p:Configuration=Release /p:Platform=x64');
+            // WholeProgramOptimization (/GL) emits LTCG objects that frankenphp's lld-link cannot
+            // read ("is not a native COFF file"); disable it so the .lib stays plain COFF.
+            ->exec('msbuild libffi-msvc.sln /t:Rebuild /p:Configuration=Release /p:Platform=x64 /p:WholeProgramOptimization=false');
         FileSystem::createDir($lib->getLibDir());
         FileSystem::createDir($lib->getIncludeDir());
 

src/Package/Library/libiconv_win.php

@@ -21,6 +21,7 @@ public function validate(): void
     {
         $ver = WindowsUtil::findVisualStudio();
         $vs_ver_dir = match ($ver['major_version']) {
+            '18', // VS 2026 reuses the VS2022 (MSVC17) solution, which msbuild builds via forward compatibility.
             '17' => '\MSVC17',
             '16' => '\MSVC16',
             default => throw new EnvironmentException("Current VS version {$ver['major_version']} is not supported yet!"),
@@ -33,7 +34,9 @@ public function build(LibraryPackage $lib): void
     {
         $vs_ver_dir = ApplicationContext::get('vs_ver_dir');
         cmd()->cd("{$lib->getSourceDir()}{$vs_ver_dir}")
-            ->exec('msbuild libiconv.sln /t:Rebuild /p:Configuration=Release /p:Platform=x64');
+            // WholeProgramOptimization (/GL) emits LTCG objects that frankenphp's lld-link cannot
+            // read ("is not a native COFF file"); disable it so the .lib stays plain COFF.
+            ->exec('msbuild libiconv.sln /t:Rebuild /p:Configuration=Release /p:Platform=x64 /p:WholeProgramOptimization=false');
         FileSystem::createDir($lib->getLibDir());
         FileSystem::createDir($lib->getIncludeDir());
         FileSystem::copy("{$lib->getSourceDir()}{$vs_ver_dir}\\x64\\lib\\libiconv.lib", "{$lib->getLibDir()}\\libiconv.lib");

src/Package/Library/libsodium.php

@@ -42,13 +42,16 @@ public function buildWin(LibraryPackage $lib): void
     {
         $ver = WindowsUtil::findVisualStudio();
         $vs_ver_dir = match ($ver['major_version']) {
+            '18', // VS 2026 reuses the vs2022 solution, which msbuild builds via forward compatibility.
             '17' => '\vs2022',
             '16' => '\vs2019',
             default => throw new EnvironmentException("Current VS version {$ver['major_version']} is not supported yet!"),
         };
 
         cmd()->cd("{$lib->getSourceDir()}\\builds\\msvc{$vs_ver_dir}")
-            ->exec('msbuild libsodium.sln /t:Rebuild /p:Configuration=StaticRelease /p:Platform=x64 /p:PreprocessorDefinitions="SODIUM_STATIC=1"');
+            // WholeProgramOptimization (/GL) emits LTCG objects that frankenphp's lld-link cannot
+            // read ("is not a native COFF file"); disable it so the .lib stays plain COFF.
+            ->exec('msbuild libsodium.sln /t:Rebuild /p:Configuration=StaticRelease /p:Platform=x64 /p:WholeProgramOptimization=false /p:PreprocessorDefinitions="SODIUM_STATIC=1"');
         FileSystem::createDir($lib->getLibDir());
         FileSystem::createDir($lib->getIncludeDir());
 

src/Package/Library/mpir.php

@@ -21,6 +21,7 @@ public function validate(): void
     {
         $ver = WindowsUtil::findVisualStudio();
         $vs_ver_dir = match ($ver['major_version']) {
+            '18', // VS 2026 reuses the build.vc17 solution, which msbuild builds via forward compatibility.
             '17' => '\build.vc17',
             '16' => '\build.vc16',
             default => throw new EnvironmentException("Current VS version {$ver['major_version']} is not supported yet!"),

src/Package/Target/php/windows.php

@@ -512,6 +512,7 @@ public function patchBeforeBuildconfForWindows(TargetPackage $package): void
             $vc_matches = ['unknown', 'unknown'];
         } else {
             $vc_matches = match ($vc['major_version']) {
+                '18', // VS 2026 shares the VS2022 (v143) runtime conventions, so it reports as VS17.
                 '17' => ['VS17', 'Visual C++ 2022'],
                 '16' => ['VS16', 'Visual C++ 2019'],
                 default => ['unknown', 'unknown'],

src/StaticPHP/Runtime/Executor/WindowsCMakeExecutor.php

@@ -189,6 +189,10 @@ private function getDefaultCMakeArgs(): array
     {
         return $this->custom_default_args ?? [
             '-A x64',
+            // CMake 4.x hard-errors on projects requesting compatibility with CMake < 3.5
+            // (e.g. wineditline). This is the documented escape hatch; modern projects and
+            // older CMake releases ignore it.
+            '-DCMAKE_POLICY_VERSION_MINIMUM=3.5',
             '-DCMAKE_BUILD_TYPE=Release',
             '-DBUILD_SHARED_LIBS=OFF',
             '-DBUILD_STATIC_LIBS=ON',