cd /usr/local/ tar -xvzf ~/Downloads/postgresql-9.2.3.tar cd postgresql-9.2.3/ mkdir build_dir cd build_dir/ ../configure --prefix=`pwd`/../psql --with-libxml # --with-libxml is optional, I only put it here to illustrate where you include libraries in the build make make install
// x is the (base16) integer you'd like to convert to RGB int x = 0x9900cc; int r, g, b; r = (x >> 16) & 0xff; g = (x >> 8) & 0xff; b = x & 0xff; // r, g and b now contain their respective colour values
// x is the (base10) integer you'd like to convert
int x = 555;
int size = x < 0 ? 3 : 2, tempX = x;
while((tempX = tempX / 10) != 0)
size++;
char buf[size];
snprintf(buf, size, "%d", x);
// buf now tightly contains your converted integer