Compiling C code with R header files

I need R header files to compile something. I installed R on ubuntu via:

sudo apt-get r-base-dev

R works fine. But I can't find the R headers such as Rmath.h. I get this error when I try to compile:

gcc -g -std=c99 -I/usr/include -O3 -lRmath开发者_如何学编程 -lm -lpthread -o qcpg qcpg.c
In file included from qcpg.c:1:0:
qcpg.h:19:19: fatal error: Rmath.h: No such file or directory
compilation terminated.
make: *** [qcpg] Error 1

Any ideas??

You also want to do

sudo apt-get install r-mathlib

which contains, among other things, the file /usr/include/Rmath.h.