kernel - Fix some rare pmap races in i386 and x86_64 (followup)
[dragonfly.git] / share / man / man5 / compilers.conf.5
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cfe16058 32.Dd August 11, 2009
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33.Os
34.Dt COMPILERS.CONF 5
35.Sh NAME
36.Nm compilers.conf
37.Nd configuration file for external compilers
38.Sh SYNOPSIS
39.Pa /etc/compilers.conf
40.Sh DESCRIPTION
41The
42.Nm
43file allows to configure
44.Dq external
45compilers for usage with the
46.Dx
47.Xr build 7
48system.
49.Pp
50The
51.Pa /etc/defaults/compilers.conf
52file specifies the default settings for all variables, the
53.Pa /etc/compilers.conf
54file specifies override settings.
55.Pp
56The following variables are available:
57.Bl -tag -width ".Va <version>_CPPFLAGS"
58.It Va <version>_CC
59The pathname of the
60.Nm cc
61program of the compiler.
62.It Va <version>_CFLAGS
63Any additional flags to pass to
64.Va <version>_CC .
65.It Va <version>_CPP
66The pathname of the
67.Nm cpp
68program of the compiler.
69.It Va <version>_CPPFLAGS
70Any additional flags to pass to
71.Va <version>_CPP .
72.It Va <version>_CXX
73The pathname of the
74.Nm c++
75program of the compiler.
76.It Va <version>_CXXFLAGS
77Any additional flags to pass to
78.Va <version>_CXX .
79.It Va <version>_VERSION
80What to output when the
81.Fl dumpversion
82option is used.
83This helps
84.Nm clang
85with
86.Xr pkgsrc 7 .
87.El
88.Pp
89Once configured the compiler can then be used like this:
90.Bd -literal -offset indent
cfe16058 91[build and install clang]
c97b9141 92cd /usr/src
cfe16058 93env WORLD_CCVER=clang make buildworld
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94.Ed
95.Pp
cfe16058 96Currently, defaults are provided for
c97b9141 97.Nm clang
cfe16058 98(installed from SVN trunk).
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99.Sh FILES
100.Bl -tag -width ".Pa /etc/compilers.conf" -compact
101.It Pa /etc/compilers.conf
102external compiler configuration file
103.El
104.Sh SEE ALSO
105.Xr objformat 1 ,
106.Xr build 7
107.Sh HISTORY
108The
109.Nm
110file first appeared in
111.Dx 2.3 .