Build process

Here we explain each step for build ldc as pseudo-code

1. Build idgen
   Include: . ./dmd2 ./dmd2/root /usr/include
   Source: ./dmd2/idgen.c
   Outpout: ./dmd2/idgen.o
   Compiler: c++
   Flags: -O2 -g -pipe -Wall -Wp -fexceptions -fstack-protector --param=ssp-buffer-size=4 -mtune=generic -fomit-frame-pointer -fno-exceptions -fPIC -Woverloaded-virtual -Wcast-qual
   Optional Flags: -m64 or -m32
   Command: Compiler Include Flags -o ./dmd2/idgen..c.o - c ./dmd2/idgen.c
   Linking: ./dmd2/idgen.c.o -o dmd2/idgen -rdynamic
2. Build impcnvgen
   Include: . ./dmd2 ./dmd2/root /usr/include
   Source: ./dmd2/idgen.c
   Outpout: ./dmd2/impcnvtab.c ./dmd2/impcnvgen.c.o
   Compiler: c++
   Flags: -O2 -g -pipe -Wall -Wp -fexceptions -fstack-protector --param=ssp-buffer-size=4 -mtune=generic -fomit-frame-pointer -fno-exceptions -fPIC -Woverloaded-virtual -Wcast-qual
   Optional Flags: -m64 or -m32
   Command: Compiler Include Flags -o ./dmd2/impcnvgen.c.o - c ./dmd2/impcnvtab.c
   Linking: ./dmd2/idgen.c.o -o dmd2/idgen -rdynamic
3. Build ldc2
4. Build runtime
5. Build standard library