Re: Compiling "C" Functions

On Thu, Dec 28, 2000 at 09:36:57AM -0500, Ron Peterson wrote:
> Tulio Oliveira wrote:
> > 
> > I appreciate any "C" Function complete samples, including de command
> > line for
> > the compiler.
> 
> I've attached a generic GNU make snippet for compiling .so files. 
> Adjust to suite your tastes.  Like my math textbooks used to say
> "writing the C code is trivial, and is left as an excercise for the
> reader."  ;)
> 
> CC = /usr/bin/gcc
> TARGET = debug
> #TARGET = final
> DFLAGS = -Wall -g
> FFLAGS = -Wall -O2
> SFLAGS = -fpic -shared
> MYINCLUDES = -I/usr/local/include
> -I/usr/local/src/postgresql/src/include -I/usr/local/postgresql/include
> MYLIBS = -L/usr/local/lib -L/usr/local/postgresql/lib -lpq
> 
> ifeq ($(TARGET),final)
>         MYCFLAGS = $(FFLAGS)
> else
>         MYCFLAGS = $(DFLAGS)
> endif 
> 
> %.so:
>         $(CC) $(MYCFLAGS) $(MYINCLUDES) $(MYLIBS) $(*F).c -c -o $(*F).o
>         $(CC) $(SFLAGS) $(*F).o -o $(*F).so
>     [ -d $(TARGET) ] || mkdir $(TARGET)
>     mv $(*F).so $(TARGET)
>         rm *.o

Or using implicit rules, only type "make my_file.so":

INCLUDES = -I /usr/include/postgresql
CFLAGS = -g -Wall $(INCLUDES) -fPIC 

%.so: %.o ld -shared -soname $@ -o $@ $< $(LIBS)


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