libraries: honour SPC_DEFAULT_CFLAGS/CXXFLAGS/LDFLAGS and bug fixes

bzip2, fastlz, jbig, qdbm: thread SPC_DEFAULT_CFLAGS into the
hand-rolled Makefile patches and shell compile commands. Backward
compatible when the env var is empty.

icu: append SPC_DEFAULT_CXXFLAGS/LDFLAGS to runConfigureICU's CXXFLAGS
and LDFLAGS so user flags reach the bundled cxx invocation.

openssl: append user CFLAGS/LDFLAGS after the target name on Configure
so options like -flto and -fprofile-* reach the openssl build.

libheif: rewrite libheif 1.22+'s C-incompatible
`struct heif_bad_pixel { uint32_t row; uint32_t column; };` as a
typedef so C consumers compile.

ncurses: filter the clang/zig-cc "N warning(s) generated." stdout line
out of MKlib_gen.sh's preprocessor pipe before sed turns it into
invalid C in lib_gen.c.

libaom: detect target CPU from SystemTarget instead of hard-coding
generic, fall back to generic only when neither nasm nor yasm is
available, and turn off examples/tests/tools/docs.

Author: henderkes

src/Package/Library/bzip2.php

@@ -17,7 +17,9 @@ class bzip2
     #[PatchBeforeBuild]
     public function patchBeforeBuild(LibraryPackage $lib): void
     {
-        FileSystem::replaceFileStr($lib->getSourceDir() . '/Makefile', 'CFLAGS=-Wall', 'CFLAGS=-fPIC -Wall');
+        // Makefile pins -O2 -fPIC; inject SPC_DEFAULT_CFLAGS
+        $extra = deduplicate_flags(trim((string) getenv('SPC_DEFAULT_CFLAGS')) . ' -fPIC -Wall');
+        FileSystem::replaceFileStr($lib->getSourceDir() . '/Makefile', 'CFLAGS=-Wall', "CFLAGS={$extra}");
     }
 
     #[BuildFor('Windows')]

src/Package/Library/fastlz.php

@@ -18,9 +18,11 @@ public function build(LibraryPackage $lib): void
     {
         $cc = getenv('CC') ?: 'cc';
         $ar = getenv('AR') ?: 'ar';
+        $extra = trim((string) getenv('SPC_DEFAULT_CFLAGS'));
+        $extra = $extra !== '' ? $extra . ' -fPIC' : '-O3 -fPIC';
 
         shell()->cd($lib->getSourceDir())->initializeEnv($lib)
-            ->exec("{$cc} -c -O3 -fPIC fastlz.c -o fastlz.o")
+            ->exec("{$cc} -c {$extra} fastlz.c -o fastlz.o")
             ->exec("{$ar} rcs libfastlz.a fastlz.o");
 
         // Copy header file

src/Package/Library/icu.php

@@ -24,9 +24,12 @@ public function beforePack(LibraryPackage $lib): void
     #[BuildFor('Linux')]
     public function buildLinux(LibraryPackage $lib, ToolchainInterface $toolchain, PackageBuilder $builder): void
     {
+        // runConfigureICU bakes CXXFLAGS/LDFLAGS, apply user flags too
+        $userCxxFlags = trim((string) getenv('SPC_DEFAULT_CXXFLAGS'));
+        $userLdFlags = trim((string) getenv('SPC_DEFAULT_LDFLAGS'));
         $cppflags = 'CPPFLAGS="-DU_CHARSET_IS_UTF8=1  -DU_USING_ICU_NAMESPACE=1 -DU_STATIC_IMPLEMENTATION=1 -DPIC -fPIC"';
-        $cxxflags = 'CXXFLAGS="-std=c++17 -DPIC -fPIC -fno-ident"';
-        $ldflags = $toolchain->isStatic() ? 'LDFLAGS="-static"' : '';
+        $cxxflags = "CXXFLAGS=\"-std=c++17 -DPIC -fPIC -fno-ident {$userCxxFlags}\"";
+        $ldflags = $toolchain->isStatic() ? "LDFLAGS=\"-static {$userLdFlags}\"" : "LDFLAGS=\"{$userLdFlags}\"";
         shell()->cd($lib->getSourceDir() . '/source')->initializeEnv($lib)
             ->exec(
                 "{$cppflags} {$cxxflags} {$ldflags} " .

src/Package/Library/jbig.php

@@ -17,7 +17,9 @@ class jbig
     #[PatchBeforeBuild]
     public function patchBeforeBuild(LibraryPackage $lib): void
     {
-        FileSystem::replaceFileStr($lib->getSourceDir() . '/Makefile', 'CFLAGS = -O2 -W -Wno-unused-result', 'CFLAGS = -O2 -W -Wno-unused-result -fPIC');
+        $extra = trim((string) getenv('SPC_DEFAULT_CFLAGS'));
+        $cflags = ($extra !== '' ? $extra : '-O2') . ' -W -Wno-unused-result -fPIC';
+        FileSystem::replaceFileStr($lib->getSourceDir() . '/Makefile', 'CFLAGS = -O2 -W -Wno-unused-result', "CFLAGS = {$cflags}");
     }
 
     #[BuildFor('Darwin')]

src/Package/Library/libaom.php

@@ -9,8 +9,10 @@
 use StaticPHP\Package\LibraryPackage;
 use StaticPHP\Runtime\Executor\UnixCMakeExecutor;
 use StaticPHP\Runtime\Executor\WindowsCMakeExecutor;
+use StaticPHP\Runtime\SystemTarget;
 use StaticPHP\Toolchain\Interface\ToolchainInterface;
 use StaticPHP\Toolchain\ZigToolchain;
+use StaticPHP\Util\System\UnixUtil;
 
 #[Library('libaom')]
 class libaom extends LibraryPackage
@@ -39,9 +41,23 @@ public function buildUnix(ToolchainInterface $toolchain): void
             $new = trim($extra . ' -D_GNU_SOURCE');
             f_putenv("SPC_COMPILER_EXTRA={$new}");
         }
+        $targetCpu = SystemTarget::getTargetArch();
+        if (str_starts_with($targetCpu, 'aarch')) {
+            $targetCpu = str_replace('aarch', 'arm', $targetCpu);
+        }
+        if (!UnixUtil::findCommand('nasm') && !UnixUtil::findCommand('yasm')) {
+            $targetCpu = 'generic';
+        }
         UnixCMakeExecutor::create($this)
             ->setBuildDir("{$this->getSourceDir()}/builddir")
-            ->addConfigureArgs('-DAOM_TARGET_CPU=generic')
+            ->addConfigureArgs(
+                "-DAOM_TARGET_CPU={$targetCpu}",
+                '-DCONFIG_RUNTIME_CPU_DETECT=1',
+                '-DENABLE_EXAMPLES=OFF',
+                '-DENABLE_TESTS=OFF',
+                '-DENABLE_TOOLS=OFF',
+                '-DENABLE_DOCS=OFF',
+            )
             ->build();
         f_putenv("SPC_COMPILER_EXTRA={$extra}");
         $this->patchPkgconfPrefix(['aom.pc']);

src/Package/Library/libheif.php

@@ -24,6 +24,17 @@ public function patchBeforeBuild(LibraryPackage $lib): void
                 'list(APPEND REQUIRES_PRIVATE "libbrotlidec")' . "\n" . '        list(APPEND REQUIRES_PRIVATE "libbrotlienc")'
             );
         }
+        // libheif 1.22+ ships a C-incompatible header: `struct heif_bad_pixel`
+        $heif_properties = $lib->getSourceDir() . '/libheif/api/libheif/heif_properties.h';
+        if (file_exists($heif_properties)
+            && str_contains(file_get_contents($heif_properties), 'struct heif_bad_pixel { uint32_t row; uint32_t column; };')
+        ) {
+            FileSystem::replaceFileStr(
+                $heif_properties,
+                'struct heif_bad_pixel { uint32_t row; uint32_t column; };',
+                'typedef struct heif_bad_pixel { uint32_t row; uint32_t column; } heif_bad_pixel;'
+            );
+        }
     }
 
     #[BuildFor('Darwin')]

src/Package/Library/ncurses.php

@@ -6,6 +6,8 @@
 
 use StaticPHP\Attribute\Package\BuildFor;
 use StaticPHP\Attribute\Package\Library;
+use StaticPHP\Attribute\Package\PatchBeforeBuild;
+use StaticPHP\Attribute\PatchDescription;
 use StaticPHP\Package\LibraryPackage;
 use StaticPHP\Runtime\Executor\UnixAutoconfExecutor;
 use StaticPHP\Toolchain\Interface\ToolchainInterface;
@@ -16,6 +18,24 @@
 #[Library('ncursesw')]
 class ncurses
 {
+    #[PatchBeforeBuild]
+    #[PatchDescription('Filter clang/zig "N warning(s) generated." line out of MKlib_gen.sh preprocessor pipe')]
+    public function patchBeforeBuild(LibraryPackage $lib): void
+    {
+        // MKlib_gen.sh feeds the C preprocessor's stdout through a sed/awk
+        // pipeline into lib_gen.c. zig-cc/clang emits "N warning(s) generated."
+        // on stdout (not stderr), and that line ends up as invalid C in the
+        // generated source. Filter it out of the pipe before sed sees it.
+        $mklibGen = $lib->getSourceDir() . '/ncurses/base/MKlib_gen.sh';
+        if (is_file($mklibGen) && !str_contains((string) file_get_contents($mklibGen), "| grep -v ' generated")) {
+            FileSystem::replaceFileStr(
+                $mklibGen,
+                '$preprocessor $TMP 2>/dev/null \\',
+                "\$preprocessor \$TMP 2>/dev/null \\\n| grep -v ' generated\\.\$' \\",
+            );
+        }
+    }
+
     #[BuildFor('Darwin')]
     #[BuildFor('Linux')]
     public function build(LibraryPackage $package, ToolchainInterface $toolchain): void

src/Package/Library/openssl.php

@@ -111,6 +111,12 @@ public function build(LibraryPackage $lib): void
         $openssl_dir ??= LinuxUtil::getOSRelease()['dist'] === 'redhat' ? '/etc/pki/tls' : '/etc/ssl';
         $ex_lib = trim($ex_lib);
 
+        // anything we want included (PGO -fprofile-*, LTO, custom hardening)
+        // has to be appended on the command line *after* the target name.
+        $userCFlags = trim((string) getenv('SPC_DEFAULT_CFLAGS'));
+        $userLdFlags = trim((string) getenv('SPC_DEFAULT_LDFLAGS'));
+        $userExtra = trim($userCFlags . ' ' . $userLdFlags);
+
         shell()->cd($lib->getSourceDir())->initializeEnv($lib)
             ->exec(
                 "{$env} ./Configure no-shared zlib " .
@@ -121,7 +127,8 @@ public function build(LibraryPackage $lib): void
                 'enable-pie ' .
                 'no-legacy ' .
                 'no-tests ' .
-                "linux-{$arch}"
+                "linux-{$arch} " .
+                $userExtra
             )
             ->exec('make clean')
             ->exec("make -j{$lib->getBuilder()->concurrency} CNF_EX_LIBS=\"{$ex_lib}\"")

src/Package/Library/qdbm.php

@@ -20,6 +20,11 @@ public function buildUnix(LibraryPackage $lib): void
     {
         $ac = UnixAutoconfExecutor::create($lib)->configure();
         FileSystem::replaceFileRegex($lib->getSourceDir() . '/Makefile', '/MYLIBS = libqdbm.a.*/m', 'MYLIBS = libqdbm.a');
+        // Makefile pins -O3, replace with SPC_DEFAULT_CFLAGS
+        $extra = trim((string) getenv('SPC_DEFAULT_CFLAGS'));
+        if ($extra !== '') {
+            FileSystem::replaceFileRegex($lib->getSourceDir() . '/Makefile', '/^CFLAGS = .*$/m', "CFLAGS = -Wall {$extra}");
+        }
         $ac->make(SystemTarget::getTargetOS() === 'Darwin' ? 'mac' : '');
         $lib->patchPkgconfPrefix(['qdbm.pc']);
     }