What is the $@ symbol for in a makefile?

[jf22901]

Hi.

Can anyone please tell me what purpose $@ serves in the dependency line below? I've tried looking online, and in the make and ifort documentation, but can't find anything.

$(EXECUTABLE) : $(OBJECTS)
                ifort $(LOADFLAGS) -o $@ $(OBJECTS) $(LIBRARIES)

where:

OBJECTS = list of object files
LOADFLAGS = -O3 -align dcommons
LIBRARIES = -L$(LIBRARY) -lfft -lnetcdf

Many thanks.

 

[Filip Larsen]

Perhaps you can find what you seek in the GNU make manual:
http://www.gnu.org/software/make/manual/make.html#Automatic-Variables

 

[jf22901]

Perhaps you can find what you seek in the GNU make manual:
http://www.gnu.org/software/make/manual/make.html#Automatic-Variables

Brilliant, thanks a lot. If only I'd found that manual sooner!