Freetype-2.2.1 for ARM compilation process

I. compiling environment
1. Compile the source code package to be used by FreeType.
Freetype-2.2.1.tar.bz2
Zlib-1.2.3.tar.gz

2. System Environment
Red Hat Linux9.0
Arm cross-compilation environment 2.95.3 (Path:/usr/local/ARM/2.95.3)

Ii. compilation process
1. Create a directory and decompress the source code
Mkdir/ft2
MV freetype-2.2.1.tar.bz2 zlib-1.2.3.tar.gz/ft2
CD/ft2
Tar-jxvf freetype-2.2.1.tar.gz
Tar-zxvf zlib-1.2.3.tar.gz
CP-RF freetype-2.2.1 freetype-x86
// When compiling the FreeType library of the arm version, the apinames tool of FreeType in the x86 version is required.
// This tool is available in the freetype-x86/objs/directory after the x86 version is compiled successfully
// Although the apinames tool is generated when the arm version is compiled, it cannot be run because it is an arm version,
// The following error message is displayed when the FreeType of ARM is compiled: apinames: cannot execute binary file.

2. Create a buildarm script
The buildarm script includes the following content:
#! /Bin/bash
Export Path =/usr/local/ARM/2.95.3/bin: $ path
Make

Modify the buildarm script to have the executable permission:
Chmod 777 buildarm

3. Compile FreeType's X86 version
CD freetype-x86
./Configure
Make

4. Compile the zlib arm version (use the arm libz library when compiling the FreeType arm Version)
CD zlib-1.2.3
Copy the buildarm script to the zlib-1.2.3 directory
./Configure
./Buildarm

Copy libz. A to/usr/local/ARM/2.95.3/ARM-Linux/lib (this path may be different)

5. Compile the FreeType arm version.
CD freetype-2.2.1
Copy buildarm to a freetype-2.2.1 directory
./Configure
./Buildarm

Note:
When the following error occurs/FT2/freetype-2.2.1/src/gzip/ftgzip. C: 45: zlib. h: no such file or directory
The zlib. h header file is not found. You can modify the 45 lines in the ftgzip. c file and change # include <zlib. h> to # include "zlib. H"
This should be because the header file zlib. h already exists in FreeType. After modification, continue to execute./buildarm

/FT2/freetype-2.2.1/objs/apinames: cannot execute binary file when the following error occurs
Please copy the freetype-x86/objs/apinames in the freetype-x86 to the freetype-2.2.1/objs/apinames, override the apinames in the freetype-2.2.1/objs/directory
Then run./buildarm.

After excluding the above errors, the compilation will be successful.
The FreeType library file you want is under the freetype-2.2.1/objs/. libs/path

The final success is achieved.