generated from sethub/template
50 lines
2.2 KiB
Markdown
50 lines
2.2 KiB
Markdown
# template
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## GIT
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### clone
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git clone http://sethub.club/sethub/XML_Data_Parsing.git
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git checkout -b dev_xxx origin/dev
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### pull
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git pull origin dev
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## push
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git push origin dev_xxx -u
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## libxml2 record
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1. Use the autogen.sh script to generate makefile-related files.
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autogen.sh
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2. Use `make` to execute the `makefile`
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make
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### Command operation principle
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#### .in file - "Template file"
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1. Makefile.in: A template for Makefile. It is filled with placeholder variables such as @srcdir@, @CC@, @prefix@, etc. Configure replaces these variables with actual values, outputting a directly usable Makefile.
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2. config.h.in: A header file template. The configure script will generate config.h based on the detection results, which defines macros such as #define HAVE_STDLIB_H 1 for use in the source code.
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3. Why is it called .in? It stands for input template, waiting to be filled by configure.
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#### .m4 file - "Macro definition file"
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1. m4 is an ancient macro processing language used by Autoconf to extend configure.ac.
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2. aclocal.m4: Generated by aclocal, it contains macros written by the project itself and macros installed by the system (such as macros for detecting a specific library), intended for use by autoconf.
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3. pkg.m4: This is a macro file provided by the pkg-config tool, which defines macros such as PKG_CHECK_MODULES, intended for conveniently detecting dependent libraries in configure.ac. Your script checks for its existence to ensure that the project can correctly detect dependencies.
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4. Other .m4 files: They are usually stored in /usr/share/aclocal and are detection macros provided by various third-party libraries.
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Handwritten files:
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configure.ac (configuration requirements)
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Makefile.am (prototype of build rules)
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... source code ..
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↓ Run autogen.sh (i.e., the script you analyzed)
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Generated files:
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configure (executable configuration script),
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Makefile.in (Makefile template),
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aclocal.m4 (macro package),
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config.h.in (header file template)
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↓ Run ./configure
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Generated files: Makefile (final usable Makefile),
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config.h (final header file),
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config.status (configuration status script)
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Reference: https://chat.deepseek.com/share/yuz6k3q75v5qqop8h3 |