How to use `include_prefix` so it doesn't affect external library itself?

[seee...@gmail.com]

I want to use HdrHistogram_c in my project. However I don't want to include files like this:

#include <src/hdr_histogram.h>

but rather like:

#include <histogram/hdr_histogram.h>

So my hdr-histogram.BUILD is configured as follows:

cc_library(
    name = "main",
    srcs = glob([
        "src/*.c",
    ]),
    hdrs = glob([
        "src/*.h",
    ]),
    includes = ["."],
    strip_include_prefix = "src",
    include_prefix = "histogram",
    visibility = ["//visibility:public"],
)

However, strip_include_prefix and include_prefix affects the compilation of library itself, and I get this error:

Use --sandbox_debug to see verbose messages from the sandbox
external/hdrhistogram/src/hdr_histogram_log.c:22:26: fatal error: hdr_encoding.h: No such file or directory
compilation terminated.

Ultimately, I'd like to encapsulate HdrHistogram_c.

My question is how do I do it, with or without (strip_)include_prefix?

[seee...@gmail.com]

I was able to achieve encapsulation by splitting the rule into two cc_library rules, as follows:

cc_library(
    name = "base",

    srcs = glob([
        "src/*.c",

        "src/*.h",
    ]),
)

cc_library(
    name = "main",

    hdrs = glob([
        "src/*.h",
    ]),
    includes = ["."],
    strip_include_prefix = "src",
    include_prefix = "histogram",

    deps = [":base"],

    visibility = ["//visibility:public"],
)

Rule :base is for proper compilation of the external library, and rule :main is for proper encapsulation of it.

I can use the library like so:

#include <histogram/hdr_histogram.h>

Now I am wondering if this can be a general solution for encapsulation of external libraries. Or am I lucky this config is working (since project structure of HdrHistogram_c is simple)?

[Tim Blakely]

Just wanted to say thanks for the follow-up. Been wrestling with this for ~years, and this finally solved the prefix issue for me. Cheers!