Consider adding glibc-static as a prerequisite

[bsocaciu]

Hi,

It would be a good idea to add a line in the main readme.md file specifying the need to install glibc-static on CentOS.

I am using CentOS Linux release 7.4.1708 (Core), the minimal installation, and glibc-static doesn't seem to be installed by default. This results in make exiting with the following error:

[root@localhost node_exporter]# make
>>formatting code
>>vetting code
>>running staticcheck
>>building binaries
>node_exporter
# github.com/prometheus/node_exporter
/usr/lib/golang/pkg/tool/linux_amd64/link: running gcc failed: exit status 1
/usr/bin/ld: cannot find -lpthread
/usr/bin/ld: cannot find -lc
collect2: error: ld returned 1 exit status

!! command failed: build -o /root/go/src/github.com/prometheus/node_exporter/node_exporter -ldflags -X github.com/prometheus/node_exporter/vendor/github.com/prometheus/common/version.Version=0.15.0 -X github.com/prometheus/node_exporter/vendor/github.com/prometheus/common/version.Revision=6e2053c557f96efb63aef3691f15335a70baaffd -X github.com/prometheus/node_exporter/vendor/github.com/prometheus/common/version.Branch=master -X github.com/prometheus/node_exporter/vendor/github.com/prometheus/common/version.BuildUser=[email protected] -X github.com/prometheus/node_exporter/vendor/github.com/prometheus/common/version.BuildDate=20171009-12:26:18 -extldflags '-static' -a -tags 'netgo static_build' github.com/prometheus/node_exporter: exit status 2
make: *** [build] Error 1

Thanks you,
Bogdan

[SuperQ]

Sure, this sounds like a good idea.

[huangsam]

Currently trying to install glibc-static via yum but it doesn't look like it works for me. Is there a repository that has this package available?

root•~» yum install glibc-static                                                                                                                                                                                                                                     [0:05:34]
Loaded plugins: langpacks, product-id, search-disabled-repos, subscription-manager
This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.
No package glibc-static available.

FYI the machine I'm running this command on is RHEL 7.2 release. I heard from this SO post that it's not possible without subscription-manager to install the package. Wondering if there's another way to do so.

[bsocaciu]

RHEL is a paid product and you can get a 30-day evaluation subscription from here to install any package using RHEL repositories: https://access.redhat.com/products/red-hat-enterprise-linux/evaluation
What does "yum repolist all" say? I think you can get glibc-static from a non-RHEL repository.

[huangsam]

@SCBbestof I didn't check any further as I realized I could simply download the linux-amd64 tar archive from the v0.15.1 release notes.