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GET /api/1.0/patches/2175473/?format=api
{ "id": 2175473, "url": "http://patchwork.ozlabs.org/api/1.0/patches/2175473/?format=api", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/1.0/projects/14/?format=api", "name": "QEMU Development", "link_name": "qemu-devel", "list_id": "qemu-devel.nongnu.org", "list_email": "qemu-devel@nongnu.org", "web_url": "", "scm_url": "", "webscm_url": "" }, "msgid": "<20251218085446.462827-2-phind.uet@gmail.com>", "date": "2025-12-18T08:54:45", "name": "[v2,1/2] qga/vss-win32: Fix ConvertStringToBSTR redefinition with newer MinGW", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "66bbafcc5052cc5c22386774d43873e7ec613320", "submitter": { "id": 83910, "url": "http://patchwork.ozlabs.org/api/1.0/people/83910/?format=api", "name": "NGUYEN DINH PHI", "email": "phind.uet@gmail.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20251218085446.462827-2-phind.uet@gmail.com/mbox/", "series": [ { "id": 485804, "url": "http://patchwork.ozlabs.org/api/1.0/series/485804/?format=api", "date": "2025-12-18T08:54:45", "name": "Fix Windows build issues with newer MinGW", "version": 2, "mbox": "http://patchwork.ozlabs.org/series/485804/mbox/" } ], "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2175473/checks/", "tags": {}, "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256\n header.s=20230601 header.b=ELdYtPII;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; 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helo=mail-pf1-x433.google.com", "X-Spam_score_int": "-20", "X-Spam_score": "-2.1", "X-Spam_bar": "--", "X-Spam_report": "(-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1,\n DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001,\n RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001,\n SPF_PASS=-0.001 autolearn=ham autolearn_force=no", "X-Spam_action": "no action", "X-BeenThere": "qemu-devel@nongnu.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "<qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<https://lists.nongnu.org/archive/html/qemu-devel>", "List-Post": "<mailto:qemu-devel@nongnu.org>", "List-Help": "<mailto:qemu-devel-request@nongnu.org?subject=help>", "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org" }, "content": "From: Nguyen Dinh Phi <phind.uet@gmail.com>\n\nNewer versions of MinGW-w64 provide ConvertStringToBSTR() in the\n_com_util namespace via <comutil.h>. This causes a redefinition\nerror when building qemu-ga on Windows with these toolchains.\n\nAdd a meson check to detect whether ConvertStringToBSTR is already\navailable, and conditionally compile our fallback implementation\nonly when the system does not provide one.\n\nSigned-off-by: Nguyen Dinh Phi <phind.uet@gmail.com>\nSuggested-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>\n---\n meson.build | 12 ++++++++++++\n qga/vss-win32/install.cpp | 2 ++\n 2 files changed, 14 insertions(+)", "diff": "diff --git a/meson.build b/meson.build\nindex c5710a6a47..5a0f407d6f 100644\n--- a/meson.build\n+++ b/meson.build\n@@ -3299,6 +3299,18 @@ endif\n # Detect host pointer size for the target configuration loop.\n host_long_bits = cc.sizeof('void *') * 8\n \n+# Detect if ConvertStringToBSTR has been defined in _com_util namespace\n+if host_os == 'windows'\n+ has_convert_string_to_bstr = cxx.links('''\n+ #include <comutil.h>\n+ int main() {\n+ BSTR b = _com_util::ConvertStringToBSTR(\"test\");\n+ return b ? 0 : 1;\n+ }\n+ ''')\n+ config_host_data.set('CONFIG_CONVERT_STRING_TO_BSTR', has_convert_string_to_bstr)\n+endif\n+\n ########################\n # Target configuration #\n ########################\ndiff --git a/qga/vss-win32/install.cpp b/qga/vss-win32/install.cpp\nindex 7b25d9098b..5b7a8e9bc5 100644\n--- a/qga/vss-win32/install.cpp\n+++ b/qga/vss-win32/install.cpp\n@@ -549,6 +549,7 @@ STDAPI DllUnregisterServer(void)\n \n \n /* Support function to convert ASCII string into BSTR (used in _bstr_t) */\n+#ifndef CONFIG_CONVERT_STRING_TO_BSTR\n namespace _com_util\n {\n BSTR WINAPI ConvertStringToBSTR(const char *ascii) {\n@@ -566,6 +567,7 @@ namespace _com_util\n return bstr;\n }\n }\n+#endif\n \n /* Stop QGA VSS provider service using Winsvc API */\n STDAPI StopService(void)\n", "prefixes": [ "v2", "1/2" ] }