错误：可能未定义的宏：AS_IF

Question

我试图编译TPM2.0-TSS项目，但得到的错误，在创建配置脚本：

$ git clone https://github.com/01org/TPM2.0-TSS.git 
Cloning into 'TPM2.0-TSS'... 
remote: Counting objects: 6522, done. 
remote: Total 6522 (delta 0), reused 0 (delta 0), pack-reused 6522 
Receiving objects: 100% (6522/6522), 13.99 MiB | 4.44 MiB/s, done. 
Resolving deltas: 100% (5081/5081), done. 
$ 
$ 
$ cd TPM2.0-TSS/ 
$ ./bootstrap 
Generating file lists: src_vars.mk 
libtoolize: putting auxiliary files in '.'. 
libtoolize: linking file './ltmain.sh' 
libtoolize: putting macros in AC_CONFIG_MACRO_DIRS, 'm4'. 
libtoolize: linking file 'm4/libtool.m4' 
libtoolize: linking file 'm4/ltoptions.m4' 
libtoolize: linking file 'm4/ltsugar.m4' 
libtoolize: linking file 'm4/ltversion.m4' 
libtoolize: linking file 'm4/lt~obsolete.m4' 
configure.ac:14: error: possibly undefined macro: AS_IF 
     If this token and others are legitimate, please use m4_pattern_allow. 
     See the Autoconf documentation. 
configure.ac:28: error: possibly undefined macro: AC_SUBST 
configure.ac:31: error: possibly undefined macro: AC_MSG_ERROR 
configure:12158: error: possibly undefined macro: AC_MSG_WARN 
autoreconf: /usr/bin/autoconf failed with exit status: 1 
$ 

一个奇怪的是，当我打电话bootstap一个第二次，它成功了。

$ ./bootstrap 
Generating file lists: src_vars.mk 
configure.ac:4: installing './compile' 
configure.ac:5: installing './config.guess' 
configure.ac:5: installing './config.sub' 
configure.ac:6: installing './install-sh' 
configure.ac:6: installing './missing' 
Makefile.am: installing './depcomp' 
parallel-tests: installing './test-driver' 
$ 

有几个类似的错误以外的其他职位，并且他们通过安装pkg-config解决 - 但pkg-config已经安装在我的系统。

Answer 1

最后以下的INSTALL.md提示和安装autoconf-archive（info）解决了这个问题：

$ sudo apt -y update 
$ sudo apt -y install \ 
    autoconf-archive \ 
    libcmocka0 \ 
    libcmocka-dev \ 
    build-essential \ 
    git \ 
    pkg-config \ 
    gcc \ 
    g++ \ 
    m4 \ 
    libtool \ 
    automake \ 
    autoconf 

更进一步，检查PKG_CONFIG变量是否被设置：

$ env | grep PKG_CONFIG 
PKG_CONFIG=[...]/system/buildroot-x86/output/host/usr/bin/pkg-config 
PKG_CONFIG_PATH=[...]/TPM2.0-TSS-INSTALL/lib/pkgconfig/ 
$ 
$ unset PKG_CONFIG 
$ unset PKG_CONFIG_PATH 
$ 
$ env | grep PKG_CONFIG 
$