Bug 17912 – Build failure: error: #error "Unknown Unicode implementation"

• Status: RESOLVED
• Resolution: INVALID
• Component: JavaScriptCore

[Stéphane Marguet]

g++ -c -g -Wall -O2 -D_REENTRANT -I/usr/include -Wall -W -Wcast-align -Wchar-subscripts -Wformat-security -Wmissing-format-attribute -Wpointer-arith -Wwrite-strings -Wno-format-y2k -Wno-unused-parameter -Wundef -fno-exceptions -fno-rtti -Wreturn-type -fno-strict-aliasing -g -I/usr/include/cairo -I/usr/include/freetype2 -I/usr/include/libpng12 -I/usr/include/pixman-1 -I/usr/include/cairo -I/usr/include/freetype2 -I/usr/include/libpng12 -I/usr/include/pixman-1 -I/usr/include/gtk-2.0 -I/usr/lib/gtk-2.0/include -I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/pango-1.0 -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -I/usr/include/freetype2 -I/usr/include/libpng12 -I/usr/include/pixman-1 -pthread -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -I/usr/include/libxml2 -I/usr/include/libxml2 -fvisibility=hidden -fvisibility-inlines-hidden -fPIC -DQT_SHARED -DBUILDING_CAIRO__=1 -DBUILDING_GTK__=1 -DWTF_USE_CURL=1 -DUSE_SYSTEM_MALLOC -DNDEBUG -DG_DISABLE_DEPRECATED -DGDK_PIXBUF_DISABLE_DEPRECATED -DGDK_DISABLE_DEPRECATED -DGTK_DISABLE_DEPRECATED -DPANGO_DISABLE_DEPRECATED -DHAVE_STDINT_H -DBUILD_WEBKIT -DENABLE_CROSS_DOCUMENT_MESSAGING=1 -DENABLE_DATABASE=1 -DENABLE_ICONDATABASE=1 -DENABLE_XPATH=1 -DENABLE_XSLT=1 -DENABLE_SVG=0 -DENABLE_VIDEO=0 -DWTF_CHANGES=1 -DBUILDING_GTK__ -I/usr/share/qt4/mkspecs/linux-g++ -I../../WebCore -I../../../webkit-0~svn31114 -I../../WebCore/platform/gtk -I../../WebCore/platform/network/curl -I../../WebCore/platform/graphics/cairo -I/build/buildd/webkit-0~svn31114/WebCore/loader/gtk -I../../WebCore/page/gtk -I../../WebKit/gtk -I../../WebKit/gtk/WebCoreSupport -I../../WebKit/gtk/webkit -I../../JavaScriptCore -I../../JavaScriptCore/kjs -I/build/buildd/webkit-0~svn31114/JavaScriptCore/bindings -I/build/buildd/webkit-0~svn31114/JavaScriptCore/bindings/c -I../../JavaScriptCore/wtf -I../../JavaScriptCore/ForwardingHeaders -I../../WebCore -I../../WebCore/ForwardingHeaders -I../../WebCore/platform -I../../WebCore/platform/network -I../../WebCore/platform/graphics -I../../WebCore/loader -I../../WebCore/page -I../../WebCore/css -I../../WebCore/dom -I../../WebCore/bridge -I../../WebCore/editing -I../../WebCore/rendering -I../../WebCore/history -I../../WebCore/xml -I../../WebCore/html -I../../WebCore/plugins -Itmp -Itmp -I../../JavaScriptCore -I../../JavaScriptCore/kjs -I../../JavaScriptCore/wtf -I../../JavaScriptCore/wtf/unicode -I../../JavaScriptCore/pcre -I/build/buildd/webkit-0~svn31114/build-gtk/JavaScriptCore/kjs/tmp -I../../WebCore/platform/gtk -I../../WebCore/platform/graphics/gtk -I../../WebCore/platform/graphics/cairo -I../../WebCore/svg/graphics/cairo -I../../WebCore/platform/network/curl -I../../WebCore/platform/image-decoders -I../../WebCore/platform/image-decoders/bmp -I../../WebCore/platform/image-decoders/gif -I../../WebCore/platform/image-decoders/ico -I../../WebCore/platform/image-decoders/jpeg -I../../WebCore/platform/image-decoders/png -I../../WebCore/platform/image-decoders/xbm -I/build/buildd/webkit-0~svn31114/WebCore/loader/gtk -I../../WebCore/page/gtk -I../../WebKit/gtk -I../../WebKit/gtk/WebCoreSupport -I../../WebKit/gtk/webkit -I../../WebCore -I../../WebCore/ForwardingHeaders -I../../../webkit-0~svn31114 -I../../JavaScriptCore/kjs -I/build/buildd/webkit-0~svn31114/WebCore/../JavaScriptCore/bindings -I../../JavaScriptCore/wtf -I../../WebCore/platform -I../../WebCore/platform/network -I../../WebCore/platform/graphics -I../../WebCore/svg/graphics -I../../WebCore/svg/graphics/filters -I../../WebCore/platform/sql -I../../WebCore/platform/text -I../../WebCore/storage -I../../WebCore/loader -I../../WebCore/loader/icon -I../../WebCore/css -I../../WebCore/dom -I../../WebCore/page -I../../WebCore/bridge -I../../WebCore/editing -I../../WebCore/rendering -I../../WebCore/history -I../../WebCore/xml -I../../WebCore/html -I../../WebCore/bindings/js -I../../WebCore/svg -I../../WebCore/platform/image-decoders -I../../WebCore/plugins -I../../WebCore/bridge -I../../WebCore/bridge/c -I../../WebCore/bridge/qt -I/usr/X11R6/include -I../../WebCore -I. -o tmp/pcre_compile.o ../../JavaScriptCore/pcre/pcre_compile.cpp
In file included from ../../JavaScriptCore/pcre/pcre.h:45,
                 from ../../JavaScriptCore/pcre/pcre_internal.h:79,
                 from ../../JavaScriptCore/pcre/pcre_compile.cpp:46:
../../JavaScriptCore/wtf/unicode/Unicode.h:33:2: error: #error "Unknown Unicode implementation"
In file included from ../../JavaScriptCore/pcre/pcre_internal.h:79,
                 from ../../JavaScriptCore/pcre/pcre_compile.cpp:46:
../../JavaScriptCore/pcre/pcre.h:58: error: expected ',' or '...' before '*' token
../../JavaScriptCore/pcre/pcre.h:60: error: ISO C++ forbids declaration of 'UChar' with no type
../../JavaScriptCore/pcre/pcre.h:63: error: expected ',' or '...' before '*' token
../../JavaScriptCore/pcre/pcre.h:64: error: ISO C++ forbids declaration of 'UChar' with no type
In file included from ../../JavaScriptCore/pcre/pcre_compile.cpp:46:
../../JavaScriptCore/pcre/pcre_internal.h:372: error: 'isWordChar' declared as an 'inline' variable
../../JavaScriptCore/pcre/pcre_internal.h:372: error: 'UChar' was not declared in this scope
../../JavaScriptCore/pcre/pcre_internal.h:373: error: expected ',' or ';' before '{' token
../../JavaScriptCore/pcre/pcre_internal.h:377: error: 'isSpaceChar' declared as an 'inline' variable
../../JavaScriptCore/pcre/pcre_internal.h:377: error: 'UChar' was not declared in this scope
../../JavaScriptCore/pcre/pcre_internal.h:378: error: expected ',' or ';' before '{' token
../../JavaScriptCore/pcre/pcre_internal.h:382: error: 'isNewline' declared as an 'inline' variable
../../JavaScriptCore/pcre/pcre_internal.h:382: error: 'UChar' was not declared in this scope
../../JavaScriptCore/pcre/pcre_internal.h:383: error: expected ',' or ';' before '{' token
../../JavaScriptCore/pcre/pcre_compile.cpp:153: error: expected ',' or '...' before '*' token
../../JavaScriptCore/pcre/pcre_compile.cpp:153: error: ISO C++ forbids declaration of 'UChar' with no type
../../JavaScriptCore/pcre/pcre_compile.cpp:180: error: expected ',' or '...' before '*' token
../../JavaScriptCore/pcre/pcre_compile.cpp:180: error: ISO C++ forbids declaration of 'UChar' with no type
../../JavaScriptCore/pcre/pcre_compile.cpp: In function 'int checkEscape(int)':
../../JavaScriptCore/pcre/pcre_compile.cpp:182: error: expected initializer before '*' token
../../JavaScriptCore/pcre/pcre_compile.cpp:185: error: 'ptr' was not declared in this scope
../../JavaScriptCore/pcre/pcre_compile.cpp:185: error: 'patternEnd' was not declared in this scope
../../JavaScriptCore/pcre/pcre_compile.cpp:186: error: 'errorcodeptr' was not declared in this scope
../../JavaScriptCore/pcre/pcre_compile.cpp:187: error: 'ptrptr' was not declared in this scope
../../JavaScriptCore/pcre/pcre_compile.cpp:191: error: 'ptr' was not declared in this scope
../../JavaScriptCore/pcre/pcre_compile.cpp:200: error: 'isclass' was not declared in this scope
../../JavaScriptCore/pcre/pcre_compile.cpp:224: error: 'isclass' was not declared in this scope
../../JavaScriptCore/pcre/pcre_compile.cpp:225: error: expected initializer before '*' token
../../JavaScriptCore/pcre/pcre_compile.cpp:227: error: 'patternEnd' was not declared in this scope
../../JavaScriptCore/pcre/pcre_compile.cpp:227: error: 'bracount' was not declared in this scope
../../JavaScriptCore/pcre/pcre_compile.cpp:229: error: 'bracount' was not declared in this scope
../../JavaScriptCore/pcre/pcre_compile.cpp:233: error: 'oldptr' was not declared in this scope
../../JavaScriptCore/pcre/pcre_compile.cpp:249: error: 'patternEnd' was not declared in this scope
../../JavaScriptCore/pcre/pcre_compile.cpp:264: error: 'patternEnd' was not declared in this scope
../../JavaScriptCore/pcre/pcre_compile.cpp:282: error: 'patternEnd' was not declared in this scope
../../JavaScriptCore/pcre/pcre_compile.cpp:297: error: 'patternEnd' was not declared in this scope
../../JavaScriptCore/pcre/pcre_compile.cpp:298: error: 'errorcodeptr' was not declared in this scope
../../JavaScriptCore/pcre/pcre_compile.cpp:310: error: 'ptrptr' was not declared in this scope
../../JavaScriptCore/pcre/pcre_compile.cpp: At global scope:
../../JavaScriptCore/pcre/pcre_compile.cpp:329: error: expected ',' or '...' before '*' token
../../JavaScriptCore/pcre/pcre_compile.cpp:329: error: ISO C++ forbids declaration of 'UChar' with no type
../../JavaScriptCore/pcre/pcre_compile.cpp: In function 'bool isCountedRepeat(int)':
../../JavaScriptCore/pcre/pcre_compile.cpp:331: error: 'p' was not declared in this scope
../../JavaScriptCore/pcre/pcre_compile.cpp:331: error: 'patternEnd' was not declared in this scope
../../JavaScriptCore/pcre/pcre_compile.cpp:333: error: 'p' was not declared in this scope
../../JavaScriptCore/pcre/pcre_compile.cpp:334: error: 'patternEnd' was not declared in this scope
../../JavaScriptCore/pcre/pcre_compile.cpp:336: error: 'patternEnd' was not declared in this scope
../../JavaScriptCore/pcre/pcre_compile.cpp:339: error: 'patternEnd' was not declared in this scope
../../JavaScriptCore/pcre/pcre_compile.cpp:341: error: 'patternEnd' was not declared in this scope
../../JavaScriptCore/pcre/pcre_compile.cpp:344: error: 'patternEnd' was not declared in this scope
../../JavaScriptCore/pcre/pcre_compile.cpp:347: error: 'patternEnd' was not declared in this scope
../../JavaScriptCore/pcre/pcre_compile.cpp:350: error: 'patternEnd' was not declared in this scope
../../JavaScriptCore/pcre/pcre_compile.cpp: At global scope:
../../JavaScriptCore/pcre/pcre_compile.cpp:372: error: expected initializer before '*' token
../../JavaScriptCore/pcre/pcre_internal.h:372: warning: 'isWordChar' defined but not used
../../JavaScriptCore/pcre/pcre_internal.h:377: warning: 'isSpaceChar' defined but not used
../../JavaScriptCore/pcre/pcre_internal.h:382: warning: 'isNewline' defined but not used
../../JavaScriptCore/pcre/pcre_compile.cpp:100: warning: 'const char* errorText(ErrorCode)' defined but not used
../../JavaScriptCore/pcre/pcre_compile.cpp:153: warning: 'bool compileBracket(int, int*, unsigned char**, int)' declared 'static' but never defined
../../JavaScriptCore/pcre/pcre_compile.cpp:154: warning: 'bool bracketIsAnchored(const unsigned char*)' declared 'static' but never defined
../../JavaScriptCore/pcre/pcre_compile.cpp:155: warning: 'bool bracketNeedsLineStart(const unsigned char*, unsigned int, unsigned int)' declared 'static' but never defined
../../JavaScriptCore/pcre/pcre_compile.cpp:156: warning: 'int bracketFindFirstAssertedCharacter(const unsigned char*, bool)' declared 'static' but never defined
../../JavaScriptCore/pcre/pcre_compile.cpp:180: warning: 'int checkEscape(int)' defined but not used
../../JavaScriptCore/pcre/pcre_compile.cpp:329: warning: 'bool isCountedRepeat(int)' defined but not used
make[2]: *** [tmp/pcre_compile.o] Error 1
make[2]: Leaving directory `/build/buildd/webkit-0~svn31114/build-gtk/WebCore'
make[1]: *** [sub-WebCore-make_default-ordered] Error 2
make[1]: Leaving directory `/build/buildd/webkit-0~svn31114/build-gtk'
make: *** [build-gtk-stamp] Error 2

[Peter Gordon]

I'm seeing this on Fedora, too (r31738).

[Peter Gordon]

And if I build the GTK+ port using autotools, this does not occur. It's only on the qmake-based build. Hopefully that helps narrow it down.

[Julien Chaffraix]

(In reply to comment #2)
> And if I build the GTK+ port using autotools, this does not occur. It's only on
> the qmake-based build. Hopefully that helps narrow it down.
> 

That's normal: the qmake gtk+ backend is unmaintained and the current backend is the one with autotools.
I would advise you to completely switch to the autotools backend.

[Alp Toker]

qmake-based GTK+ build dropped in favour of the new autotools build system, where this works fine. Closing bug.