CHMReader compile issues on Mac chinese

Mozilla June 8th, 2009

CHM Reader is a great extension make Firefox support .chm file, project host on：http://sourceforge.net/projects/chmreader/

When I compiled it on my OSX 10.5.7 occurred following issue:

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g++ -o components/mozCHMModule.os -c -fPIC -I/Users/duo/xulrunner-sdk/include -I/Users/duo/xulrunner-sdk/sdk/include components/mozCHMModule.cpp
/Users/duo/xulrunner-sdk/sdk/include/nsStringAPI.h:1053: error: size of array 'arg' is negative
scons: *** [components/mozCHMModule.os] Error 1

The line in nsStringAPI.h is PR_STATIC_ASSERT(sizeof(wchar_t) == 2), but 4-bytes is the default wide character size on macs, so we should add -fshort-wchar to compile flag options.

The other issue in link stage:

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g++ -o platform/Darwin_x86-gcc3/components/libchm.dylib -dynamiclib components/chm_lib.os components/lzx.os components/mozCHMModule.os components/mozCHMFile.os components/mozCHMUnitInfo.os components/mozCHMInputStream.os -L/Users/duo/xulrunner-sdk/lib -L/Users/duo/xulrunner-sdk/sdk/lib -lxpcom -lxpcomglue_s -lnspr4 -lplds4 -lplc4
ld: file not found: @executable_path/libsmime3.dylib
collect2: ld returned 1 exit status
scons: *** [platform/Darwin_x86-gcc3/components/libchm.dylib] Error 1

Just add -Wl,-executable_path -Wl,/path/to/gecko/sdk/bin to link flag options.

Complete svn diff result：

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Index: components/SConscript
===================================================================
--- components/SConscript       (revision 114)
+++ components/SConscript       (working copy)
@@ -7,6 +7,8 @@
 
 libs = ['xpcom', 'xpcomglue_s', 'nspr4', 'plds4', 'plc4']
 
+linkflags = ''
+
 # We use firefox development files instead for geckosdk on FreeBSD
 if system() != 'FreeBSD':
        try:
@@ -38,7 +40,8 @@
     cpppath.append('/usr/include/nspr')
 
 elif system() == 'Darwin':
-    cxxflags = []
+    cxxflags = ['-fshort-wchar']
+    linkflags = ['-Wl,-executable_path', '-Wl,%s/bin' % geckosdk]
 
 elif system() == 'Windows':
     cxxflags = ['/D', 'WIN32', '/D', 'XP_WIN', '/nologo', '/MT', '/O2']
@@ -70,7 +73,7 @@
                '/usr/local/lib/firefox3/sdk/lib']
 
 env = Environment(CPPPATH = cpppath, LIBPATH = libpath, LIBS = libs,
-                  CXXFLAGS= cxxflags)
+                  CXXFLAGS= cxxflags, LINKFLAGS = linkflags)
 
 bxpt = Builder(
     action = 'xpidl -w -m typelib -Icomponents -I%s -I%s -e $TARGET $SOURCE' \

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1 Comment

关于 Mozilla 的 Plugin 编译

Mozilla October 24th, 2006

最近折腾了好久, 才总算大致弄明白了如何编写一个 mozilla 的 plugin. 这玩意儿的资料也实在太少了, 相对与 Extension 和 XPCom 而言…
关于 plugin 的一些机制和原理, 可以从 Gecko_Plugin_API_Reference 获得.
在这我主要是提下怎么编译一个 Plugin(感谢 Paul 的热心帮助)
相关工具: gecko sdk 以及 mozilla source
关于 plugin 的示例我们可以在 mozilla/modules/plugin/tools/sdk/samples 里找到.
以下给出个编译 basic 的 Makefile

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CXX   = g++
CPPFLAGS += -fno-rtti \
-fno-exceptions \
-shared  
 
# Change this to point at your Gecko SDK directory. 
GECKO_SDK_PATH = /home/duo/gecko-sdk
 
GECKO_DEFINES  = -DMOZ_X11 -DMOZILLA_STRICT_API
 
GECKO_INCLUDES = -I $(GECKO_SDK_PATH)/include
 
PLUGIN_INCLUDES = -I ../../include
 
GECKO_LDFLAGS =  -L $(GECKO_SDK_PATH)/lib -rdynamic  -lXi -lXext -lX11 -lm -lXt
 
FILES = plugin.cpp ../../common/*.cpp
 
TARGET = libpluginbasic.so
 
build: 
	$(CXX) -Wall -Os -o $(TARGET) $(GECKO_CONFIG_INCLUDE) $(GECKO_DEFINES) $(PLUGIN_INCLUDES) \
	$(GECKO_INCLUDES) $(GECKO_LDFLAGS) $(CPPFLAGS) $(CXXFLAGS) $(FILES)
 
clean: 
	rm $(TARGET)

编译后将 libpluginbasic.so 拷贝至 .mozilla/plugins 目录下即可.

PS1: 下一步得搞定怎么写一个使用 GTK 库的 Plugin 了…继续研究 mplayer-plugin 中…
PS2: 关于 IE 浏览本 Blog 的时候 simple page 似乎会因为 coolcode 生成的高亮代码过长移动到下方…这个问题我现在也不知道怎么解决, 所以还是推荐大家用 Firefox 吧…

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