我想寫一個configure.ac
文件來執行這些任務:如何基於PKG_CHECK_MODULES結果定義AM_CONDITIONAL和AC_DEFINE?
的
configure
腳本應該接受一個--with-libuv
參數。可變
with_libuv
應設置爲yes
,no
或check
(與check
爲默認值時,沒有在命令行上傳遞)。當
with_libuv == "yes"
強制性PKG_CHECK_MODULES檢查libuv >= 1.9.0
應該做,應該HAVE_LIBUV = 1
成功設置(在錯誤configure
應該退出)。當
with_libuv == "no"
什麼需要檢查,當
with_libuv == "false"
可選PKG_CHECK_MODULES檢查(同一庫中3)應做HAVE_LIBUV
應設置爲0
或1
相應。如果
with_libuv != "no" && HAVE_LIBUV == 1
AC_DEFINE應該設置爲-DUSE_LIBUV
並且AM_CONDITIONAL應該設置USE_LIBUV
作爲automake的條件。如果不是
with_libuv != "no" && HAVE_LIBUV == 1
,則不應設置預處理器指令,並且應將AM_CONDITIONAL設置爲0
。
我已經找到了如何做步驟1-5,但我有6個和7
這裏struggeling是我當前的嘗試:
AC_INIT(
[mumble-pluginbot-plusplus],
[0.5],
[https://github.com/promi/mumble-pluginbot-plusplus/issues],
[],
[https://github.com/promi/mumble-pluginbot-plusplus])
AC_CONFIG_MACRO_DIR([m4])
AM_INIT_AUTOMAKE([foreign])
AM_SILENT_RULES([yes])
AC_PROG_CXX
LT_INIT
# Make sure that pkg-config is installed!
# The PKG_CHECK_MODULES macro prints a horrible error message when
# pkg-config is not installed at autogen time.
#
# It is also required when the first PKG_CHECK_MODULES is inside a conditional
PKG_PROG_PKG_CONFIG
PKG_CHECK_MODULES(OPUS, [opus >= 1.1])
PKG_CHECK_MODULES(OPENSSL, [openssl])
PKG_CHECK_MODULES(PROTOBUF, [protobuf])
PKG_CHECK_MODULES(MPDCLIENT, [libmpdclient])
AC_ARG_WITH(
[libuv],
[AS_HELP_STRING([--with-libuv], [support efficient MPD status polling @<:@[email protected]:>@])],
[],
[with_libuv=check])
# if --with-libuv -> it must be installed
# elseif --without-libuv -> do nothing
# else -> check whether it is installed
AS_CASE(
["$with_libuv"],
[yes], [PKG_CHECK_MODULES(UV, [libuv >= 1.9.0], [HAVE_LIBUV=1])],
[no], [],
[PKG_CHECK_MODULES(UV, [libuv >= 1.9.0], [HAVE_LIBUV=1], [HAVE_LIBUV=0])])
if test "$with_libuv" != no -a "x$HAVE_LIBUV" -eq x1; then
AM_CONDITIONAL([USE_LIBUV], [1])
AC_DEFINE([USE_LIBUV], [1], [Define when libuv should be used.])
else
AM_CONDITIONAL([USE_LIBUV], [0])
fi
#AC_CONFIG_HEADERS([src/config.h])
AC_CONFIG_FILES([Makefile])
AC_OUTPUT
有問題的部分是這樣的:
if test "$with_libuv" != no -a "x$HAVE_LIBUV" -eq x1; then
AM_CONDITIONAL([USE_LIBUV], [1])
AC_DEFINE([USE_LIBUV], [1], [Define when libuv should be used.])
else
AM_CONDITIONAL([USE_LIBUV], [0])
fi
下面是從配置輸出的摘錄:
checking pkg-config is at least version 0.9.0... yes
checking for OPUS... yes
checking for OPENSSL... yes
checking for PROTOBUF... yes
checking for MPDCLIENT... yes
checking for UV... yes
./configure: line 16467: test: x1: integer expression expected
./configure: line 16480: 0: command not found
checking that generated files are newer than configure... done
如何以實際工作的方式實施步驟6和7?
PKG_CHECK_MODULES失敗時的默認操作已經中止腳本,但可能它更清晰。 – Promi