gcc compiler doesnt know parameter

Hello

I need to develop a program for school using glade, gtk+ and c.

The assistents gave me the compile line that is the following :

gcc -Wall -ansi -pedantic Todo.c -o Todo -export-dynamic `pkg-config --cflags --libs gtk+-2.0 libglade-2.0 `

When i try to compile a testprogram i get this error.
cc1: error: unrecognized command line option "-export-dynamic"

I know the compile line is correct because a friend could compile with it.
I have been looking for this error but i cant find it anywhere on the net.
Does anyone has an idea? (I am on a mac)

Thank you

Perhaps, --export-dynamic?

No tried that already. Then i get this error

gcc -Wall -ansi -pedantic Todo.c -o Todo --export-dynamic `pkg-config --cflags --libs gtk+-2.0 libglade-2.0 `
cc1: error: unrecognized command line option "-fexport-dynamic"

export-dynamic is a linker option (and not one of the ones known to the compiler)

Link Options - Using the GNU Compiler Collection (GCC)
Use -Wl and read this as well
Options - Untitled

Thank you for your reply but i think this is not the same option as that i want to use

my book says : the option export-dynamic is used so the libglade library can automatically link his callbackfunctions to a event.

Read the description on the links I posted.

The options don't exist just for the sake of one library.