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Re: Appending to config.log
From: |
Akim Demaille |
Subject: |
Re: Appending to config.log |
Date: |
20 May 2002 12:04:30 +0200 |
User-agent: |
Gnus/5.0808 (Gnus v5.8.8) XEmacs/21.4 (Common Lisp) |
| ==> "mdr" == Mark D Roth <address@hidden> writes:
| mdr> To address this problem, I'd like to see the following two
| mdr> macros added to autoconf:
|
| mdr> AC_LOG(TEXT) ------------ Append TEXT to config.log.
|
| AC_DEFUN([AC_LOG],[dnl
| echo "$1" 1>&5
| ])dnl
fd5 is an internal detail, do not rely on it.
|
| mdr> AC_RUN_COMMAND(COMMAND) ----------------------- 1. Run
| mdr> COMMAND, saving stderr to a file. 2. Set a shell variable to
| mdr> the command's exit value so that macro caller can get it.
| mdr> 2. If exit value is non-zero, append stderr output to
| mdr> config.log. 3. Remove stderr output file.
|
| dnl
| dnl FUNCTION:
| dnl AC_RUN_COMMAND(CMD)
| dnl
| dnl Run CMD in a sub-shell.
| dnl Save the exit status in $status,
| dnl and the stdout output in $result.
| dnl
|
| AC_DEFUN([AC_RUN_COMMAND],[dnl
| _cmd="$1"
|
| AC_LOG("+ $_cmd")
|
| eval "$1" 1>config_command.out 2>&5
| status=$?
| result=`cat config_command.out`
|
| if test $status -ne 0; then
| AC_LOG($result)
| fi
|
| AC_LOG("+ exit $status")
|
| rm -f config_command.out
|
| ])
|
| Peers on this list, of course, will check this for errors and typos.
| I use a macro like the above for package-config scripts:
|
| my_package_config=${with_my_package_config-"my-package-config"}
| AC_RUN_COMMAND($my_package_config --cppflags)
| if test $status -ne 0; then
| AC_ERROR([failed command: $my_package_config])
| fi
| CPPFLAGS="$CPPFLAGS $result"
If you intend to use one such macro, first of all just do not name it
AC_sth. AC_ belongs to Autoconf. And AC_RUN_COMMANDS is especially
dangerous a name to steal from Autoconf!
Also, result, status etc. are user name space variables.
Re: Appending to config.log, Akim Demaille, 2002/05/20