🚀 go-pugleaf

Recently I've tried compiling a "Hello World!" program written in
Objective-C using gcc, using both gcc-2.7.2.1 and 2.7.2.3 on three
different machines running Linux, all which gave me these errors:

prompt> gcc -lobjc -Wno-import -o test main.m Printer.m
/tmp/cca006341.o: In function `main':
/tmp/cca006341.o(.text+0x19): undefined reference to `objc_get_class'
/tmp/cca006341.o(.text+0x24): undefined reference to `objc_msg_lookup'
/tmp/cca006341.o(.text+0x3c): undefined reference to `objc_msg_lookup'
/tmp/cca006341.o(.text+0x5f): undefined reference to `objc_msg_lookup'
/tmp/cca006341.o(.text+0x88): undefined reference to `objc_msg_lookup'
/tmp/cca006341.o(.text+0xaf): undefined reference to `objc_msg_lookup'
/tmp/cca006341.o: In function `global constructors keyed to main':
/tmp/cca006341.o(.text+0xd9): undefined reference to `__objc_exec_class'
/tmp/cca006342.o: In function `_i_Printer__init':
/tmp/cca006342.o(.text+0x20): undefined reference to
`objc_msg_lookup_super'
/tmp/cca006342.o(.text+0x41): undefined reference to `objc_msg_lookup'
/tmp/cca006342.o: In function `_i_Printer__print':
/tmp/cca006342.o(.text+0xc5): undefined reference to `objc_msg_lookup'
/tmp/cca006342.o: In function `global constructors keyed to Printer.m':
/tmp/cca006342.o(.text+0x129): undefined reference to `__objc_exec_class'
/tmp/cca006342.o(.rodata+0x8): undefined reference to
`__objc_class_name_Object'
prompt>

I've tried defining the OBJC_INCLUDE_PATH environment variable, using the
-I option, changing to order of the flags, even reinstalling gcc, all to no
avail. The weird thing is that I had successfully compiled it without any
trouble a month ago. Help!

-- 
Alan Liu
surak@imsa.edu