SDCC Compiler User Guide - Installation and Configuration

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2.2. INSTALL PATHS CHAPTER 2. INSTALLING SDCC

’conﬁgure’ also computes relative paths. This is needed for full relocatability of a binary package and to complete

search paths (see section search paths below):

Variable (computed) default Win32 builds

BIN2DATA_DIR ../share ..

PREFIX2BIN_DIR bin bin

PREFIX2DATA_DIR share/sdcc

Examples:

./configure

./configure --prefix=”/usr/bin” --datarootdir=”/usr/share”

./configure --disable-avr-port --disable-xa51-port

To cross compile on linux for Mingw32 (see also ’sdcc/support/scripts/sdcc_mingw32’):

./configure \

CC=”i586-mingw32msvc-gcc” CXX=”i586-mingw32msvc-g++” \

RANLIB=”i586-mingw32msvc-ranlib” \

STRIP=”i586-mingw32msvc-strip” \

--prefix=”/sdcc” \

--datarootdir=”/sdcc” \

docdir=”\${datarootdir}/doc” \

include_dir_suffix=”include” \

non_free_include_dir_suffix=”non-free/include” \

lib_dir_suffix=”lib” \

non_free_lib_dir_suffix=”non-free/lib” \

sdccconf_h_dir_separator=”\\\\” \

--disable-device-lib\

--host=i586-mingw32msvc\

--build=unknown-unknown-linux-gnu

To ”cross”compile on Cygwin for Mingw32 (see also sdcc/support/scripts/sdcc_cygwin_mingw32):

./configure -C \

--prefix=”/sdcc” \

--datarootdir=”/sdcc” \

docdir=”\${datarootdir}/doc” \

include_dir_suffix=”include” \

non_free_include_dir_suffix=”non-free/include” \

lib_dir_suffix=”lib” \

non_free_lib_dir_suffix=”non-free/lib” \

sdccconf_h_dir_separator=”\\\\” \

CC=”gcc -mno-cygwin” \

CXX=”g++ -mno-cygwin”

’conﬁgure’ is quite slow on Cygwin (at least on windows before Win2000/XP). The option ’--C’ turns on caching,

which gives a little bit extra speed. However if options are changed, it can be necessary to delete the conﬁg.cache

ﬁle.

2.2 Install paths

2.4. BUILDING SDCC CHAPTER 2. INSTALLING SDCC

# Search path default Win32 builds

1 --L dir --L dir --L dir

2 $SDCC_LIB/<model> $SDCC_LIB/<model> $SDCC_LIB/<model>

3 $SDCC_LIB $SDCC_LIB $SDCC_LIB

4 $SDCC_HOME/

$PREFIX2DATA_DIR/

$LIB_DIR_SUFFIX/

<model>

$SDCC_HOME/

share/sdcc/lib/<model>

$SDCC_HOME\

lib\<model>

5 path(argv[0])/

$BIN2DATADIR/

$LIB_DIR_SUFFIX/

<model>

path(argv[0])/../sdcc/

lib/<model>

path(argv[0])\

..\lib\

<model>

6 $DATADIR/non-free/

$LIB_DIR_SUFFIX/

<model>

/usr/local/share/sdcc/

lib/<model>

(not on Win32)

7 $SDCC_HOME/

$PREFIX2DATA_DIR/

non-free/

$LIB_DIR_SUFFIX/

<model>

$SDCC_HOME/share/sdcc/

non-free/lib/<model>

$SDCC_HOME\

lib\non-free\<model>

8 path(argv[0])/

$BIN2DATADIR/

non-free/

$LIB_DIR_SUFFIX/

<model>

path(argv[0])/../sdcc/

non-free/lib/<model>

path(argv[0])\..\

lib\non-free\<model>

9 $DATADIR/non-free/

$LIB_DIR_SUFFIX/

<model>

/usr/local/share/sdcc/

non-free/lib/

<model>

(not on Win32)

The option --nostdlib disables all search paths except #1 and #2.

2.4 Building SDCC

2.4.1 Building SDCC on Linux

1. Download the source package either from the SDCC Subversion repository or from snapshot builds, it will

be named something like sdcc-src-yyyymmdd-rrrr.tar.bz2 http://sdcc.sourceforge.net/snap.

php.

2. Bring up a command line terminal, such as xterm.

3. Unpack the ﬁle using a command like: "tar -xvjf sdcc-src-yyyymmdd-rrrr.tar.bz2”, this will create a

sub-directory called sdcc with all of the sources.

4. Change directory into the main SDCC directory, for example type: "cd sdcc".

5. Type "./conﬁgure". This conﬁgures the package for compilation on your system. When the treedec library

is available, it should be found and used automatically (improving the compilation time / code quality trade-

off). As of SDCC 3.7.0, the current develop branch from https://github.com/freetdi/tdlib is a suitable version

of treedec.

6. Type "make". All of the source packages will compile, this can take a while.

7. Type "make install" as root. This copies the binary executables, the include ﬁles, the libraries and the

documentation to the install directories. Proceed with section 2.7.

2.4. BUILDING SDCC CHAPTER 2. INSTALLING SDCC

2.4.2 Building SDCC on Mac OS X

Follow the instruction for Linux.

On Mac OS X 10.2.x it was reported, that the default gcc (version 3.1 20020420 (prerelease)) fails to com-

pile SDCC. Fortunately there’s also gcc 2.9.x installed, which works ﬁne. This compiler can be selected by running

’conﬁgure’ with:

./configure CC=gcc2 CXX=g++2

Universal (ppc and i386) binaries can be produced on Mac OS X 10.4.x with Xcode. Run ’conﬁgure’ with:

./configure \

LDFLAGS="-Wl,-syslibroot,/Developer/SDKs/MacOSX10.4u.sdk -arch i386 -arch ppc" \

CXXFLAGS = "-O2 -isysroot /Developer/SDKs/MacOSX10.4u.sdk -arch i386 -arch ppc" \

CFLAGS = "-O2 -isysroot /Developer/SDKs/MacOSX10.4u.sdk -arch i386 -arch ppc"

2.4.3 Cross compiling SDCC on Linux for Windows

With the Mingw32 gcc cross compiler it’s easy to compile SDCC for Win32. See section ’Conﬁgure Options’.

2.4.4 Building SDCC using Cygwin and Mingw32

For building and installing a Cygwin executable follow the instructions for Linux.

On Cygwin a ”native” Win32-binary can be built, which will not need the Cygwin-DLL. For the necessary

’conﬁgure’ options see section ’conﬁgure options’ or the script ’sdcc/support/scripts/sdcc_cygwin_mingw32’.

In order to install Cygwin on Windows download setup.exe from www.cygwin.com http://www.cygwin.

com/. Run it, set the ”default text ﬁle type” to ”unix” and download/install at least the following packages. Some

packages are selected by default, others will be automatically selected because of dependencies with the manually

selected packages. Never deselect these packages!

• ﬂex

• bison

• gcc ; version 3.x is ﬁne, no need to use the old 2.9x

• binutils ; selected with gcc

• make

• libboost-dev

• rxvt ; a nice console, which makes life much easier under windoze (see below)

• man ; not really needed for building SDCC, but you’ll miss it sooner or later

• less ; not really needed for building SDCC, but you’ll miss it sooner or later

• svn ; only if you use Subversion access

If you want to develop something you’ll need:

• python ; for the regression tests

• gdb ; the gnu debugger, together with the nice GUI ”insight”

• openssh ; to access the CF or commit changes

• autoconf and autoconf-devel ; if you want to ﬁght with ’conﬁgure’, don’t use autoconf-stable!

rxvt is a nice console with history. Replace in your cygwin.bat the line

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