10.0
10.0-rc1
10.1
10.1-rc1
11.0
11.0-rc1
11.0-rc2
11.0-rc3
11.1
11.1-rc1
11.2
11.2-rc1
11.3
11.3-rc1
12.0
12.0-rc1
12.1
12.1-rc1
12.2
12.2-rc1
6.0
6.1
6.1.1
6.3
6.4
6.5
6.6
6.7
6.8
7.0
7.1
7.2
7.3
7.4
7.5
7.5-systemd
7.6
7.6-systemd
7.7
7.7-systemd
7.8
7.8-systemd
7.9
7.9-systemd
8.0
8.1
8.2
8.3
8.4
9.0
9.1
arm
bdubbs/gcc13
ml-11.0
multilib
renodr/libudev-from-systemd
s6-init
trunk
v3_2
v3_3
v4_0
v4_1
v5_0
v5_1
v5_1_1
xry111/arm64
xry111/arm64-12.0
xry111/clfs-ng
xry111/lfs-next
xry111/loongarch
xry111/loongarch-12.0
xry111/loongarch-12.1
xry111/loongarch-12.2
xry111/mips64el
xry111/multilib
xry111/pip3
xry111/rust-wip-20221008
xry111/update-glibc
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1 | <sect2>
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2 | <title>Contents</title>
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3 |
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4 | <para>The M4 package contains the M4 processor</para>
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5 |
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6 | </sect2>
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7 |
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8 | <sect2>
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9 | <title>Description</title>
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10 |
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11 | <para>M4 is a macro processor. It copies input to output expanding macros as it
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12 | goes. Macros are either built-in or user-defined and can take any number
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13 | of arguments. Besides just doing macro expansion m4 has built-in functions
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14 | for including named files, running UNIX commands, doing integer arithmetic,
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15 | manipulating text in various ways, recursion, etc. M4 can be used either
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16 | as a front-end to a compiler or as a macro processor in its own right.</para>
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17 |
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18 | </sect2>
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19 |
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