首页 \ 问答 \ AC_SUBST不扩展变量(AC_SUBST does not expand variable)

AC_SUBST不扩展变量(AC_SUBST does not expand variable)

在Autotools项目中,我试图生成我的.conf文件的一部分。 该程序需要从$(pkgdatadir)读取,但我知道该变量仅在Makefile.in设置,所以我改为替换datadirPACKAGE

configure.ac:

    AC_PREREQ([2.69])
    AC_INIT([foo], [1.0.0], [me@foo.com])
    AC_CONFIG_SRCDIR([foo.c])
    AM_INIT_AUTOMAKE
    AC_CONFIG_HEADERS([config.h])
    AC_CONFIG_MACRO_DIRS([m4])

    AC_SUBST(datadir)
    AC_SUBST(PACKAGE)
    AC_CONFIG_FILES(foo.conf)

    AC_PROG_CC
    AC_PROG_INSTALL
    AC_PROG_MAKE_SET
    AC_PROG_MKDIR_P

    AC_CONFIG_FILES([Makefile])
    AC_OUTPUT

foo.conf.in:

    Dir = @datadir@/@PACKAGE@

由此产生的foo.conf:

    Dir = ${prefix}/share/foo

我想autoconf在替换时评估${prefix} ,我不知道如何实现这一点。


In an Autotools project I am trying to generate parts of my .conf file. The program needs to read from $(pkgdatadir), but I know that that variable is only set in Makefile.in, so I instead substituted datadir and PACKAGE.

configure.ac:

    AC_PREREQ([2.69])
    AC_INIT([foo], [1.0.0], [me@foo.com])
    AC_CONFIG_SRCDIR([foo.c])
    AM_INIT_AUTOMAKE
    AC_CONFIG_HEADERS([config.h])
    AC_CONFIG_MACRO_DIRS([m4])

    AC_SUBST(datadir)
    AC_SUBST(PACKAGE)
    AC_CONFIG_FILES(foo.conf)

    AC_PROG_CC
    AC_PROG_INSTALL
    AC_PROG_MAKE_SET
    AC_PROG_MKDIR_P

    AC_CONFIG_FILES([Makefile])
    AC_OUTPUT

foo.conf.in:

    Dir = @datadir@/@PACKAGE@

The resulting foo.conf:

    Dir = ${prefix}/share/foo

I would like autoconf to evaluate the ${prefix} when substituting, and I don't know how to make that happen.


原文:https://stackoverflow.com/questions/30897170
更新时间:2022-06-28 16:06

最满意答案

我想,你正在从IntentService更新GridView,其中Context是空的。 尝试从下面的IntentService中获取上下文,并让我知道。

public void update(Context cont, ArrayList<Article> data){
    mArticleAdapter = new ArticleAdapter(cont, R.layout.aricle_grid_element,data);
    mGridView.setAdapter(mArticleAdapter);
}

I think, you are updating GridView from IntentService where Context is null. Try to pull context from IntentService like below and let me know.

public void update(Context cont, ArrayList<Article> data){
    mArticleAdapter = new ArticleAdapter(cont, R.layout.aricle_grid_element,data);
    mGridView.setAdapter(mArticleAdapter);
}

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