Shulou(Shulou.com)06/02 Report--

This article introduces the relevant knowledge of "the use of embedded Linux FreeType cross-compilation". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

Cross-compiled universal command

The premise of using this universal command is that the source code of open source software: configure file, confiuer support-- host,--prefiex parameter. After the compilation and installation is complete, the corresponding libraries and header files will be installed in the tmp directory of the current directory

. / configure-- host=arm-hisiv400-linux-- prefix=$PWD/tmpmakemake installfreetype cross compilation

Freetype version: freetype-2.10.2.tar.xz directly uses the above cross-compile universal command

Error during compilation: ftgzip.c:46:18: fatal error: zlib.h: there is no such file or directory

Missing zlib library, cross-compile zlib library: zlib library version: zlib-1.2.11.tar.gz

. / configure-- prefix=$PWD/tmp-eprefix=$PWD/tmp-- libdir=$PWD/tmp/lib## replace all the gcc in the modified Makefile with: arm-hisiv400-linux-gccmake make install# installation zlib library cp-drf. / tmp/lib/* / opt/hisi-linux/x86-arm/arm-hisiv400-linux/target/usr/lib# installation header file cp. / tmp/include/* / opt/hisi-linux/x86-arm/arm-hisiv400-linux/target/usr/includearm-hisiv400-linux-gnueabi/bin/ld: cannot find-lpng16

Lack of libpng library, use universal command to cross-compile libpng library: libpng library version: libpng-1.6.37.tar.xz

. / configure-- host=arm-hisiv400-linux-- prefix=$PWD/tmpmakemake install# install the lib library cp-drf. / tmp/lib/* / opt/hisi-linux/x86-arm/arm-hisiv400-linux/target/usr/lib# installation header file cp. / tmp/include/* / opt/hisi-linux/x86-arm/arm-hisiv400-linux/target/usr/includearm-hisiv400-linux-gnueabi/bin/ld: cannot find-lharfbuzz

The function of harfbuzz is a hint to improve OpenType fonts, which is manually turned off and no longer used. That is, reconfigure freetype

Make distclean./configure-host=arm-hisiv400-linux-prefix=$PWD/tmp-with-harfbuzz=no

Suggestion: if necessary, please read freetype's configure-help help manual in detail. To determine whether the relevant sub-functional modules need to be turned on during the compilation of freetype. Freetype downloads libpng official website zlib official website

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