[Webkit-unassigned] [Bug 101179] New: Build failure with ICU 50 and C++11
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Sun Nov 4 21:50:06 PST 2012
https://bugs.webkit.org/show_bug.cgi?id=101179
Summary: Build failure with ICU 50 and C++11
Product: WebKit
Version: 528+ (Nightly build)
Platform: Unspecified
OS/Version: Unspecified
Status: UNCONFIRMED
Severity: Normal
Priority: P2
Component: JavaScriptCore
AssignedTo: webkit-unassigned at lists.webkit.org
ReportedBy: Arfrever.FTA at GMail.Com
When GCC >=4.7 (or another compiler supporting C++11) is used, then UChar type from ICU 50 is a typedef to char16_t instead of unsigned short int. This results in compilation failure in WebKit.
To reproduce this bug, you must:
1. Build ICU 50 using GCC >=4.7. ICU will automatically be built with -std=c++11 flag.
2. Build WebKit with -std=c++11 (or -std=gnu++11) manually added to CXXFLAGS.
Compilation failure does not occur with ICU 49 or older.
Last lines from `make`:
CXX Source/JavaScriptCore/API/libjavascriptcoregtk_3_0_la-JSBase.lo
CXX Source/JavaScriptCore/API/libjavascriptcoregtk_3_0_la-JSCallbackConstructor.lo
CXX Source/JavaScriptCore/API/libjavascriptcoregtk_3_0_la-JSCallbackFunction.lo
CXX Source/JavaScriptCore/API/libjavascriptcoregtk_3_0_la-JSCallbackObject.lo
CXX Source/JavaScriptCore/API/libjavascriptcoregtk_3_0_la-JSClassRef.lo
CXX Source/JavaScriptCore/API/libjavascriptcoregtk_3_0_la-JSContextRef.lo
CXX Source/JavaScriptCore/API/libjavascriptcoregtk_3_0_la-JSObjectRef.lo
CXX Source/JavaScriptCore/API/libjavascriptcoregtk_3_0_la-JSStringRef.lo
Source/JavaScriptCore/API/JSStringRef.cpp: In function ‘OpaqueJSString* JSStringCreateWithCharacters(const JSChar*, size_t)’:
Source/JavaScriptCore/API/JSStringRef.cpp:39:50: error: invalid conversion from ‘const JSChar* {aka const short unsigned int*}’ to ‘const UChar* {aka const char16_t*}’ [-fpermissive]
In file included from Source/JavaScriptCore/API/JSStringRef.cpp:30:0:
Source/JavaScriptCore/API/OpaqueJSString.h:44:39: error: initializing argument 1 of ‘static WTF::PassRefPtr<OpaqueJSString> OpaqueJSString::create(const UChar*, unsigned int)’ [-fpermissive]
Source/JavaScriptCore/API/JSStringRef.cpp: In function ‘const JSChar* JSStringGetCharactersPtr(JSStringRef)’:
Source/JavaScriptCore/API/JSStringRef.cpp:75:31: error: invalid conversion from ‘UChar* {aka char16_t*}’ to ‘const JSChar* {aka const short unsigned int*}’ [-fpermissive]
make[1]: *** [Source/JavaScriptCore/API/libjavascriptcoregtk_3_0_la-JSStringRef.lo] Error 1
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