qt/qtbase: make cook-time source mutations idempotent (stop vendored-source corruption)

Root cause of the recurring line-duplication corruption (duplicate #include
<sys/ioctl.h>, nested #if QT_CONFIG(opengl), duplicate assert.h): several of the
recipe's in-place source-munging steps were NOT guarded, so on a committed
(vendored) source/ they re-applied every cook and accumulated. Guard the four
unguarded ones (qwaylandclientbufferintegration opengl-wrap, qnet_unix ioctl
include, corelib CMakeLists REDOX storageinfo block) with grep/marker checks so
re-running on an already-patched tree is a no-op. The rest were already guarded
or naturally idempotent (text.replace consuming its needle).

local/recipes/qt/qtbase/recipe.toml

@@ -285,6 +285,10 @@ done
 
 # Patch CMakeLists.txt: Redox uses POSIX statvfs, not Linux statfs.
 # Exclude qstorageinfo_linux.cpp, include qstorageinfo_unix.cpp instead.
+# Idempotency guard: the found_linux block appends a new "CONDITION REDOX" target
+# every cook (qstorageinfo_linux.cpp is never removed, so found_linux re-triggers)
+# -> duplicate blocks on a vendored source/. Skip if already applied.
+if ! grep -q 'qt_internal_extend_target(Core CONDITION REDOX' "${COOKBOOK_SOURCE}/src/corelib/CMakeLists.txt" 2>/dev/null; then
 awk '
 /^qt_internal_extend_target\\(Core CONDITION LINUX AND NOT ANDROID AND NOT VXWORKS/ {
     sub(/LINUX AND NOT ANDROID AND NOT VXWORKS/, "LINUX AND NOT REDOX AND NOT ANDROID AND NOT VXWORKS")
@@ -303,6 +307,7 @@ found_linux && /^)$/ {
 { print }
 ' "${COOKBOOK_SOURCE}/src/corelib/CMakeLists.txt" > "${COOKBOOK_SOURCE}/src/corelib/CMakeLists.txt.tmp"
 mv "${COOKBOOK_SOURCE}/src/corelib/CMakeLists.txt.tmp" "${COOKBOOK_SOURCE}/src/corelib/CMakeLists.txt"
+fi
 
 # Enable QtNetwork — relibc DNS resolver hardened (2026-04-29: use-after-free fix, FD leak fix,
 # transaction ID validation, RCODE/TC handling, typed error mapping).
@@ -318,14 +323,17 @@ from pathlib import Path
 
 path = Path(os.environ["COOKBOOK_SOURCE"]) / "src/network/socket/qnet_unix_p.h"
 text = path.read_text()
-text = text.replace(
-    '''#include <sys/socket.h>
+# Idempotency: only add the ioctl include if it is not already present (else a
+# vendored source/ accumulates a duplicate "#include <sys/ioctl.h>" every cook).
+if "#include <sys/ioctl.h>" not in text:
+    text = text.replace(
+        '''#include <sys/socket.h>
 ''',
-    '''#include <sys/socket.h>
+        '''#include <sys/socket.h>
 #include <sys/ioctl.h>
 ''',
-    1,
-)
+        1,
+    )
 old = '''#if defined(Q_OS_VXWORKS)
 #  include <hostLib.h>
 #else
@@ -338,7 +346,7 @@ new = '''#if defined(Q_OS_VXWORKS)
 #  include <resolv.h>
 #endif
 '''
-text = text.replace(old, new)
+text = text.replace(old, new)  # replace() is a no-op once already applied
 path.write_text(text)
 PY
 python - <<'PY'
@@ -470,6 +478,11 @@ fi
 # with QT_CONFIG(opengl). Without OpenGL, QPlatformOpenGLContext is not defined.
 # This allows Wayland client to build with software rendering (shared memory).
 BUFI="${COOKBOOK_SOURCE}/src/plugins/platforms/wayland/hardwareintegration/qwaylandclientbufferintegration_p.h"
+# Idempotency guard: this rewrite is NOT self-limiting across cooks (the done1/2
+# awk flags only prevent repeats within one run), so on a vendored source/ it
+# re-wraps every cook -> nested "#if QT_CONFIG(opengl)" corruption. Skip if the
+# guard is already present.
+if ! grep -q 'QT_CONFIG(opengl)' "${BUFI}" 2>/dev/null; then
 awk '
 /createPlatformOpenGLContext.*QPlatformOpenGLContext/ && !done1 {
     print "#if QT_CONFIG(opengl)"; print; print "#endif /* QT_CONFIG(opengl) */"; done1=1; next
@@ -480,6 +493,7 @@ awk '
 { print }
 ' "${BUFI}" > "${BUFI}.tmp"
 mv "${BUFI}.tmp" "${BUFI}"
+fi
 
 # qtypes.h uses static_assert in C mode. relibc's assert.h does not currently expose the
 # expected macro there, so inject both the include and a bounded fallback macro for C only.