I’m trying to build the XPCOM component available here:
http://mxr.mozilla.org/mozilla-central/source/xpcom/sample/
I tried to compile it with my own Makefile, so that this component could be isolated from the whole Mozilla sources.
So here is my file tree:
frinux@Bureau /cygdrive/c/dev/central_sample
$ ls -Rlah
.:
total 57K
d---------+ 1 frinux None 0 Jan 15 21:28 .
d---------+ 1 frinux None 0 Jan 15 20:34 ..
----------+ 1 frinux None 989 Jan 15 21:22 Makefile
----------+ 1 frinux None 2.4K Jan 15 21:05 nsISample.idl
----------+ 1 frinux None 6.0K Jan 15 21:05 nsSample.cpp
----------+ 1 frinux None 5.1K Jan 15 21:06 nsSample.h
----------+ 1 frinux None 2.0K Jan 15 21:06 nsSample.js
----------+ 1 frinux None 131 Jan 15 21:06 nsSample.manifest
----------+ 1 frinux None 4.7K Jan 15 21:06 nsSampleModule.cpp
d---------+ 1 frinux None 0 Jan 15 21:28 program
----------+ 1 frinux None 8.7K Jan 15 21:06 xpconnect-sample.html
./program:
total 16K
d---------+ 1 frinux None 0 Jan 15 21:28 .
d---------+ 1 frinux None 0 Jan 15 21:28 ..
----------+ 1 frinux None 2.7K Jan 15 21:07 Makefile.in
----------+ 1 frinux None 4.5K Jan 15 21:07 nsTestSample.cpp
Here is the makefile I made :
CXX = c++
CPPFLAGS += -fno-rtti \
-fno-exceptions \
-shared
# Change this to point at your Gecko SDK directory.
GECKO_SDK_PATH = /cygdrive/c/dev/greenchallenge/xulrunner-sdk-9.0.1
# GCC only define which allows us to not have to #include mozilla-config
# in every .cpp file. If your not using GCC remove this line and add
# #include "mozilla-config.h" to each of your .cpp files.
GECKO_CONFIG_INCLUDE = -include mozilla-config.h
GECKO_DEFINES = -DXPCOM_GLUE -DXP_WIN
GECKO_INCLUDES = -I $(GECKO_SDK_PATH)/include
GECKO_LDFLAGS = -L $(GECKO_SDK_PATH)/lib -lxpcomglue \
-lnspr4 \
-lplds4
FILES = nsSample.cpp nsSampleModule.cpp
TARGET = sample.dll
build:
$(CXX) -Wall -Os -o $(TARGET) $(GECKO_CONFIG_INCLUDE) $(GECKO_DEFINES) $(GECKO_INCLUDES) $(GECKO_LDFLAGS) $(CPPFLAGS) $(CXXFLAGS) $(FILES)
chmod +x $(TARGET)
strip $(TARGET)
clean:
rm $(TARGET)
I’m trying to build it with cygwin under Windows (with gcc & g++ installed).
When compiling, I’m getting thos errors, and after some hours of research, I still don’t understand them:
$ make
c++ -Wall -Os -o greenfox.dll -include mozilla-config.h -DXPCOM_GLUE -DXP_WIN -I /cygdrive/c/dev/greenchallenge/xulrunner-sdk-9.0.1/include -L /cygdrive/c/dev/greenchallenge/xulrunner-sdk-9.0.1/lib -lxpcomglue -lnspr4 -lplds4 -fno-rtti -fno-exceptions -shared nsSample.cpp nsSampleModule.cpp
In file included from nsSample.cpp:48:
nsSample.h:44:23: nsISample.h: No such file or directory
In file included from nsSample.cpp:48:
nsSample.h:64: error: expected class-name before '{' token
nsSample.h:76: error: `NS_DECL_ISUPPORTS' does not name a type
In file included from /cygdrive/c/dev/greenchallenge/xulrunner-sdk-9.0.1/include/nsAlgorithm.h:43,
from /cygdrive/c/dev/greenchallenge/xulrunner-sdk-9.0.1/include/nsTArray.h:45,
from /cygdrive/c/dev/greenchallenge/xulrunner-sdk-9.0.1/include/nsStringAPI.h:56,
from /cygdrive/c/dev/greenchallenge/xulrunner-sdk-9.0.1/include/nsEmbedString.h:43,
from nsSample.cpp:51:
/cygdrive/c/dev/greenchallenge/xulrunner-sdk-9.0.1/include/nsCharTraits.h:143: error: an explicit specialization must be preceded by 'template <>'
/cygdrive/c/dev/greenchallenge/xulrunner-sdk-9.0.1/include/nsCharTraits.h:433: error: an explicit specialization must be preceded by 'template <>'
/cygdrive/c/dev/greenchallenge/xulrunner-sdk-9.0.1/include/nsCharTraits.h:727: error: an explicit specialization must be preceded by 'template <>'
/cygdrive/c/dev/greenchallenge/xulrunner-sdk-9.0.1/include/nsCharTraits.h:763: error: an explicit specialization must be preceded by 'template <>'
/cygdrive/c/dev/greenchallenge/xulrunner-sdk-9.0.1/include/nsCharTraits.h:828: error: an explicit specialization must be preceded by 'template <>'
/cygdrive/c/dev/greenchallenge/xulrunner-sdk-9.0.1/include/nsCharTraits.h:840: error: an explicit specialization must be preceded by 'template <>'
nsSample.cpp:61: error: no `nsSampleImpl::~nsSampleImpl()' member function declared in class `nsSampleImpl'
nsSample.cpp:81: error: no `nsrefcnt nsSampleImpl::AddRef()' member function declared in class `nsSampleImpl'
nsSample.cpp: In member function `nsrefcnt nsSampleImpl::AddRef()':
nsSample.cpp:81: error: `mRefCnt' undeclared (first use this function)
nsSample.cpp:81: error: (Each undeclared identifier is reported only once for each function it appears in.)
nsSample.cpp: At global scope:
nsSample.cpp:81: error: no `nsrefcnt nsSampleImpl::Release()' member function declared in class `nsSampleImpl'
nsSample.cpp: In member function `nsrefcnt nsSampleImpl::Release()':
nsSample.cpp:81: error: `mRefCnt' undeclared (first use this function)
nsSample.cpp: At global scope:
nsSample.cpp:81: error: no `nsresult nsSampleImpl::QueryInterface(const nsIID&, void**)' member function declared in class `nsSampleImpl'
nsSample.cpp: In member function `nsresult nsSampleImpl::QueryInterface(const nsIID&, void**)':
nsSample.cpp:81: error: `::nsISample' has not been declared
nsSample.cpp:81: error: `COMTypeInfo' undeclared (first use this function)
nsSample.cpp:81: error: expected primary-expression before "int"
nsSample.cpp:81: error: expected `)' before "int"
nsSample.cpp:81: error: expected `)' before ';' token
nsSample.cpp:81: error: `nsISample' has not been declared
nsSample.cpp:81: error: expected `>' before '*' token
nsSample.cpp:81: error: expected `(' before '*' token
nsSample.cpp:81: error: expected primary-expression before '>' token
nsSample.cpp:81: error: expected `)' before ';' token
nsSample.cpp: In function `nsresult nsSampleImpl_GetInterfacesHelper(PRUint32*, nsIID***)':
nsSample.cpp:81: error: `::nsISample' has not been declared
nsSample.cpp:81: error: `COMTypeInfo' undeclared (first use this function)
nsSample.cpp:81: error: expected primary-expression before '*' token
nsSample.cpp:81: error: expected primary-expression before ')' token
nsSample.cpp:81: error: expected `;'
nsSample.cpp: At global scope:
nsSample.cpp:89: error: no `nsresult nsSampleImpl::GetValue(char**)' member function declared in class `nsSampleImpl'
nsSample.cpp:120: error: no `nsresult nsSampleImpl::SetValue(const char*)' member function declared in class `nsSampleImpl'
nsSample.cpp:141: error: no `nsresult nsSampleImpl::Poke(const char*)' member function declared in class `nsSampleImpl'
nsSample.cpp: In member function `nsresult nsSampleImpl::Poke(const char*)':
nsSample.cpp:142: error: `SetValue' undeclared (first use this function)
nsSample.cpp: At global scope:
nsSample.cpp:153: error: no `nsresult nsSampleImpl::WriteValue(const char*)' member function declared in class `nsSampleImpl'
In file included from /cygdrive/c/dev/greenchallenge/xulrunner-sdk-9.0.1/include/mozilla/Module.h:44,
from /cygdrive/c/dev/greenchallenge/xulrunner-sdk-9.0.1/include/mozilla/ModuleUtils.h:42,
from nsSampleModule.cpp:39:
/cygdrive/c/dev/greenchallenge/xulrunner-sdk-9.0.1/include/nsCOMPtr.h:895: error: an explicit specialization must be preceded by 'template <>'
/cygdrive/c/dev/greenchallenge/xulrunner-sdk-9.0.1/include/nsCOMPtr.h:1366: error: an explicit specialization must be preceded by 'template <>'
In file included from nsSampleModule.cpp:42:
nsSample.h:44:23: nsISample.h: No such file or directory
In file included from nsSampleModule.cpp:42:
nsSample.h:64: error: expected class-name before '{' token
nsSample.h:125: error: ISO C++ forbids declaration of `NS_DECL_NSISAMPLE' with no type
nsSample.h:125: error: expected `;' before "private"
Makefile:27: recipe for target `build' failed
make: *** [build] Error 1
It is as if there was errors in the Mozilla code… What am i doing wrong ?
Thanks !
Wladimir was right on one point: nsISample.h was lacking in the compilation.
However, creating this file will not resolve the main problem: Mozilla XPCOM cannot be compiled with GCC for Windows!
The same code under VisualC++ express will compile.
This is weird, I wonder why they chose this compiler. Don’t do like me, don’t try GCC to compile Mozilla XPCOM!