mirror/autoconf
2
0
Fork 0
mirror of git://git.sv.gnu.org/autoconf synced 2025-03-01 14:16:02 +08:00
Code Issues Packages Projects Releases Wiki Activity

AC_PREREQ clarifications.

Browse Source
This commit is contained in:
David MacKenzie 1994-03-24 18:45:58 +00:00
parent 29d882e95f
commit 66d0215418
2 changed files with 18 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
autoconf.texi
View File

@ -1421,15 +1421,17 @@ If you pass @var{extra-cmds}, those commands will be inserted into
@defmac AC_PREREQ (@var{version})
@maindex PREREQ
Ensure that a recent enough version of Autoconf is being used.
If the version of Autoconf being used to create @code{configure} is
earlier than @var{version}, print an error message on the standard error
output and do not create @code{configure}.
Ensure that a recent enough version of Autoconf is being used. If the
version of Autoconf being used to create @code{configure} is earlier
than @var{version} (e.g., @samp{1.8}), print an error message on the
standard error output and do not create @code{configure}.
This macro is useful if your @file{configure.in} relies on non-obvious
behavior that changed between Autoconf releases. (If it merely needs
recently added macros, then the @code{autoconf} program already tells
the user if they are not found, so this macro is less useful in that case.)
behavior that changed between Autoconf releases. If it merely needs
recently added macros, then @code{AC_PREREQ} is less useful, because the
@code{autoconf} program already tells the user which macros are not
found. The same thing happens if @file{configure.in} is processed by a
version of Autoconf older than when @code{AC_PREREQ} was added.
@end defmac
@defmac AC_REVISION (@var{revision-info})

16
doc/autoconf.texi
View File

@ -1421,15 +1421,17 @@ If you pass @var{extra-cmds}, those commands will be inserted into
@defmac AC_PREREQ (@var{version})
@maindex PREREQ
Ensure that a recent enough version of Autoconf is being used.
If the version of Autoconf being used to create @code{configure} is
earlier than @var{version}, print an error message on the standard error
output and do not create @code{configure}.
Ensure that a recent enough version of Autoconf is being used. If the
version of Autoconf being used to create @code{configure} is earlier
than @var{version} (e.g., @samp{1.8}), print an error message on the
standard error output and do not create @code{configure}.
This macro is useful if your @file{configure.in} relies on non-obvious
behavior that changed between Autoconf releases. (If it merely needs
recently added macros, then the @code{autoconf} program already tells
the user if they are not found, so this macro is less useful in that case.)
behavior that changed between Autoconf releases. If it merely needs
recently added macros, then @code{AC_PREREQ} is less useful, because the
@code{autoconf} program already tells the user which macros are not
found. The same thing happens if @file{configure.in} is processed by a
version of Autoconf older than when @code{AC_PREREQ} was added.
@end defmac
@defmac AC_REVISION (@var{revision-info})