ld could not find popt library although it is installed.

[lsahn-gh]

With this manifest file, rpm causes an error during compilation.
The error is as below,

checking popt.h usability... yes
checking popt.h presence... yes
checking for popt.h... yes
checking for poptGetContext in -lpopt... no
configure: error: missing required library popt
Error: module rpm: module rpm: Child process exited with code 1

and config.log of rpm is,

configure:21692: checking for popt.h
configure:21692: result: yes
configure:21695: checking for poptGetContext in -lpopt
configure:21720: gcc -o conftest -O2 -g -fstack-protector-strong -O2 -g -O2 -D_FORTIFY_SOURCE=2 -I/usr/include/nss  -fstack-protector-strong -Wl,-z,relro,-z,now conftest.c -lpopt  -ldl -lpthread  >&5
/usr/lib/gcc/x86_64-unknown-linux-gnu/8.1.0/../../../../x86_64-unknown-linux-gnu/bin/ld: cannot find -lpopt
collect2: error: ld returned 1 exit status

The weird thing is that if I try to compile it in the sandbox manually, it works... it only happens with the flatpak-builder command.
Which point should I examine ?

Command I used

flatpak-builder --force-clean build-dir manifest.json

Manifest

{
    "id" : "org.test.TestApp",
    "runtime" : "org.gnome.Platform",
    "runtime-version": "master",
    "sdk": "org.gnome.Sdk",
    "cleanup": [
    ],
    "build-options": {
        "cflags": "-O2 -g",
        "cxxflags": "-O2 -g",
        "env": {
            "V": "1"
        }
    },
    "modules": [
        {
            "name" : "popt",
            "sources" : [
                {
                    "type" : "archive",
                    "url" : "http://rpm5.org/files/popt/popt-1.16.tar.gz",
                    "sha256" : "e728ed296fe9f069a0e005003c3d6b2dde3d9cad453422a10d6558616d304cc8"
                }
            ]
        },
        {
            "name" : "rpm",
            "build-options": {
                "env": {
                    "LD_LIBRARY_PATH": "/app/lib"
                }
            },
            "sources" : [
                {
                    "type" : "git",
                    "url" : "https://github.com/rpm-software-management/rpm",
                    "tag" : "rpm-4.14.2-rc1"
                }
            ]
        }
    ]
}

[alexlarsson]

This part:

            "build-options": {
                "env": {
                    "LD_LIBRARY_PATH": "/app/lib"
                }
            },

completely overrides the LD_LIBRARY_PATH that flatpak-builder sets up, so it is likely causing the issue. /app/lib is usually already in the path, so why is this needed at all?

[lsahn-gh]

It causes the same error without the part of build-options. The reason I added the part was that the same error was caused without it and tried to test with it.

[valentindavid]

popt is provided in the new runtime. So it is strange it fails.

[valentindavid]

I do not get the same error. I get:

configure: error: missing required header db.h

[lsahn-gh]

@valentindavid Thank you for the information, I just took a look at it after updated sdk/runtime.
However, I think it depends on runtime and rpm version whether it fails and should be succeeded on config check no matter popt is provided in the runtime since I added popt manually.

This issue doesn't seem a big issue, I will close soon.

[valentindavid]

You are right. However I have tried you .json and I still get the error about db.h. Not about -lpopt.

[lsahn-gh]

@valentindavid You need to install berkeley db before rpm.

    "modules": [
        {
            "name": "db",
            "buildsystem": "simple",
            "build-commands": [
                "./dist/configure --prefix=/app --enable-compat185 --disable-static",
                "make LIBSO_LIBS=-lpthread",
                "make install"
            ],
            "sources" : [
                {
                    "type": "git",
                    "url": "https://github.com/hyc/BerkeleyDB.git"
                }
            ]
        },
        {
            "name" : "rpm",
            "config-opts": [
                "--with-external-db",
                "--without-lua",
                "--with-cap"
            ],
            "sources" : [
                {
                    "type" : "git",
                    "url" : "https://github.com/rpm-software-management/rpm",
                    "tag" : "rpm-4.14.1-release"
                }
            ]
        }
    ]

I still get an error at the part of lua config in rpm although add --without-lua as the error said for workaround.