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Preparation of the MMP and bld.inf Files

At the end of this phase, Symbian port should have the bld.inf and MMP files.

MMP file

An .mmp project definition file specifies the properties of a project in a platform and compiler-independent way. The MMP file is very similar to ‘Makefile’ of Linux. MMP file exists per .SO, .A, or .EXE.

The contents of a sample MMP file created for libjpeg are shown below:

TARGET	libjpeg.dll
TARGETTYPE	DLL
UID             	0x1000008d 0x0xE0000100 
CAPABILITY All -Tcb
EpocAllowDllData

USERINCLUDE	.

SYSTEMINCLUDE	\epoc32\include\stdapis
SYSTEMINCLUDE	\epoc32\include

SOURCEPATH	.
// LIBSOURCES
SOURCE	jcapimin.c jcapistd.c jccoefct.c jccolor.c jcdctmgr.c jchuff.c
SOURCE	jcinit.c jcmainct.c jcmarker.c jcmaster.c jcomapi.c jcparam.c
SOURCE	jcphuff.c jcprepct.c jcsample.c jctrans.c jdapimin.c jdapistd.c
SOURCE	jdatadst.c jdatasrc.c jdcoefct.c jdcolor.c jddctmgr.c jdhuff.c
SOURCE	jdinput.c jdmainct.c jdmarker.c jdmaster.c jdmerge.c jdphuff.c
SOURCE	jdpostct.c jdsample.c jdtrans.c jerror.c jfdctflt.c jfdctfst.c
SOURCE	jfdctint.c jidctflt.c jidctfst.c jidctint.c jidctred.c jquant1.c
SOURCE	jquant2.c jutils.c jmemmgr.c
// SYSDEPSOURCES
SOURCE	jmemansi.c
LIBRARY	euser.lib

LIBRARY	libc.lib
MACRO	HAVE_CONFIG_H
MACRO 	__SYMBIAN32__

The following table gives a brief introduction to the MMP file keywords found in above file.

Keyword	Description
`TARGETTYPE`	Target type.Can be DLL, EXE, or LIB. Other types are also supported.
`TARGET`	Name of the target.
`UID`	Unique identifier of the target. It is recommended to use test UIDs from the range `0xE0000000-0xEFFFFFFF` which is targeted for development use only. For production quality code, UIDs must be requested from Symbian (https://www.symbiansigned.com/app/page) before the application can be sent for signing.
`CAPABILITY`	Capability requirement of the target. Note: Even if the example uses All-TCB capabilities, it is strongly recommended to use a more narrow set of capabilities to have the application successfully signed.
`EpocAllowDllData`	Allow global static data in the target
`USERINCLUDE`	Local file include path. The compiler will look in this path for the files included with “ ”. For example, `#include "config.h"`
`SYSTEMINCLUDE`	System file include path. The compiler will look in this path for the files included with `< >`. For example, `#include <stdio.h>`
`SOURCEPATH`	Source path for the source files.
`SOURCE`	Source file listing.
`LIBRARY`	Dependent DLL library file list.
`STATICLIBRARY`	Dependent static library file list.
`MACRO`	Preprocessor declarations. Makefile declares these preprocessor declarations using `–D` flag.

bld.inf

bld.inf is a component definition file, used by bldmake to define the abld.bat file and makefiles to be created. bld.inf can be loosely compared to configure script of Linux. There is one bld.inf for entire the OSS. If the project is divided into more than one module, each module can have an individual bld.inf file. Have a look at the contents of the sample MMP file below created for libjpeg.

PRJ_PLATFORMS
default

PRJ_MMPFILES
jpeg.mmp

PRJ_EXPORTS
jpeglib.h   \epoc32\include\jpeg-6b\jpeglib.h
jconfig.h   \epoc32\include\jpeg-6b\jconfig.h
jmorecfg.h  \epoc32\include\jpeg-6b\jmorecfg.h
jerror.h    \epoc32\include\jpeg-6b\jerror.h

The following table gives a brief introduction to the bld.inf keywords.

Keyword	Description
`PRJ_PLATFORMS`	Platform to which `makefiles` will be created.
`PRJ_MMPFILES`	MMP file list.
`PRJ_EXPORTS`	List of public header files for target library users. This list can be prepared by looking at the include directory in Linux installation.

Parent topic: Porting Using P.I.P.S.