安装ocamlfind.1.3.3配置时出错：m4不在路径中；这是必需的

配置：m4不在路径中；这是必需的

我想知道我怎样才能解决这个问题

非常感谢！ （我试图将m4文件夹复制到该路径，但它不工作）

---

您的系统上是否安装了m4

如果您使用基于debian的linux，请尝试

sudo apt get install m4

==== ERROR [while installing ocamlfind.1.3.3] ====
# opam-version    1.0.0
# os              linux
# command         ./configure -bindir /home/airobert/.opam/4.01.0dev+trunk/bin -sitelib                   /home/airobert/.opam/4.01.0dev+trunk/lib -mandir /home/airobert/.opam/4.01.0dev+trunk/man -config /home/airobert/.opam/4.01.0dev+trunk/lib/findlib.conf
# path            /home/airobert/.opam/4.01.0dev+trunk/build/ocamlfind.1.3.3
# exit-code       1
# env-file        /home/airobert/.opam/4.01.0dev+trunk/build/ocamlfind.1.3.3/ocamlfind-5f1023.env
# stdout-file     /home/airobert/.opam/4.01.0dev+trunk/build/ocamlfind.1.3.3/ocamlfind-5f1023.out
# stderr-file     /home/airobert/.opam/4.01.0dev+trunk/build/ocamlfind.1.3.3/ocamlfind-5f1023.err
### stdout ###
Welcome to findlib version 1.3.3
Configuring core...
### stderr ###
configure: m4 not in PATH; this is required

'opam install ocamlfind' failed.