I'm using cmocka with Bazel and I want to import cmocka library in my test files (for c embedded code) like <cmocka.h> but I'm always getting: cmocka.h: No such file or directory.
my Build is:
cc_library(
name = "mock",
srcs = ["mock_i2c.c"],
deps = [":src"],
visibility = ["//visibility:public"],
linkstatic = True,
copts = ["-I test/cmocka/include"],
)
There is a includes attribute for that case, also you need to add your headers to hdrs attribute:
cc_library(
name = "mock",
srcs = ["mock_i2c.c"],
deps = [":src"],
hdrs = glob(["test/cmocka/include/**/*.h"]),
visibility = ["//visibility:public"],
linkstatic = True,
includes= ["test/cmocka/include"],
)
Related
So, one of my uni courses uses a meson.build system for one of the libraries we have to use.
The library is organized like
this
Now, using CLion, I have trouble linking to that library. Earlier I have been trying cloning it, and setting target_include_directories to the src and includefolders.
For some reason that didn't do the trick, and I'm now trying to convert the meson.build file to a CMakeFiles which I can just add/compile.
The file looks like:
project('animationwindow', ['c', 'cpp'], version: '0.01', default_options: ['cpp_std=c++17', 'default_library=static', 'buildtype=debugoptimized'])
if host_machine.system() == 'windows'
sdl2_dep = subproject('sdl2_windows').get_variable('sdl2_windows_dep')
sdl2image_dep = subproject('sdl2_image_windows').get_variable('sdl2_image_windows_dep')
else
sdl2_dep = dependency('sdl2')
sdl2image_dep = dependency('sdl2_image')
endif
build_files = [
'src/internal/FontCache.cpp',
'src/internal/KeyboardKeyConverter.cpp',
'src/internal/nuklear_implementation.cpp',
'src/widgets/Button.cpp',
'src/widgets/TextInput.cpp',
'src/widgets/DropdownList.cpp',
'src/AnimationWindow.cpp',
'src/Color.cpp',
'src/Image.cpp',
'src/Widget.cpp']
incdir = include_directories('include')
animationwindow = static_library('animationwindow', build_files, include_directories: incdir, dependencies: [sdl2_dep, sdl2image_dep], install: true)
install_subdir('include', install_dir: '.')
install_subdir('src', install_dir: '.')
animationwindow_dep = declare_dependency(link_with: animationwindow, include_directories: incdir)
import('pkgconfig').generate(animationwindow)
# ex = executable('prog', 'src/test.cpp', include_directories: incdir, dependencies: [sdl2_dep, imgui_dep], link_with: animationwindow)
I have converted that to:
cmake_minimum_required(VERSION 3.16)
project(animationwindow)
set(CMAKE_CXX_STANDARD 17)
find_package(SDL2 REQUIRED)
add_executable(
animationwindow
src/internal/FontCache.cpp
src/internal/KeyboardKeyConverter.cpp
src/internal/nuklear_implementation.cpp
src/widgets/TextInput.cpp
src/widgets/Button.cpp
src/widgets/DropdownList.cpp
src/AnimationWindow.cpp
src/Color.cpp
src/Image.cpp
src/Widget.cpp
)
include_directories(animationwindow include)
The question now is, how do I link this from the main file. Can I just somehow link the CMakeLists, or do I have to precomile the library and then somehow add it?
I'm trying to make a derivation from fokus (a KDE plasmoid).
I have a default.nix which looks like:
{ mkDerivation, lib, fetchFromGitLab, cmake, extra-cmake-modules
, plasma-framework
, qt5 }:
let
version = "1.5.4";
repo = fetchFromGitLab {
owner = "divinae";
repo = "focus-plasmoid";
rev = "v${version}";
sha256 = "19nndmqfzdcg7lzcifxa17m2mx85dlf4m2wxzr72gf78h4yj0ahv";
};
in
mkDerivation rec {
inherit version;
pname = "fokus";
src = "${repo}/packages";
dontUnpack = true;
buildInputs = [
plasma-framework
qt5.qtbase
];
nativeBuildInputs = [ cmake extra-cmake-modules ];
meta = with lib; {
description = "Simple pomodoro timer plasmoid";
homepage = "https://store.kde.org/p/1308861/";
license = licenses.gpl3Only;
maintainers = with maintainers; [ ];
platforms = platforms.unix;
};
}
I also added to all-packages:
fokus-plasma-applet = libsForQt5.callPackage ../applications/misc/fokus-plasma-applet { };
The thing is, I have only find few examples in nixpkgs, and I do not see what to do with this error (since CMakeLists.txt is effectively in /package):
building '/nix/store/c21h5667abmj4v0ci4n51ckvkxvc23gk-fokus-1.5.4.drv'...
qtPreHook
patching sources
configuring
fixing cmake files...
cmake flags: -DCMAKE_FIND_USE_SYSTEM_PACKAGE_REGISTRY=OFF -DCMAKE_FIND_USE_PACKAGE_REGISTRY=OFF -DCMAKE_EXPORT_NO_PACKAGE_REGISTRY=ON -DCMAKE_BUILD_TYPE=Release -DCMAKE_SKIP_BUILD_RPATH=ON -DBUILD_TESTING=OFF -DCMAKE_INSTALL_LOCALEDIR=/nix/store/5rdpaqmcj9hrpwdcnprr0zm51659mp08-fokus-1.5.4/share/locale -DCMAKE_INSTALL_LIBEXECDIR=/nix/store/5rdpaqmcj9hrpwdcnprr0zm51659mp08-fokus-1.5.4/libexec -DCMAKE_INSTALL_LIBDIR=/nix/store/5rdpaqmcj9hrpwdcnprr0zm51659mp08-fokus-1.5.4/lib -DCMAKE_INSTALL_DOCDIR=/nix/store/5rdpaqmcj9hrpwdcnprr0zm51659mp08-fokus-1.5.4/share/doc/fokus -DCMAKE_INSTALL_INFODIR=/nix/store/5rdpaqmcj9hrpwdcnprr0zm51659mp08-fokus-1.5.4/share/info -DCMAKE_INSTALL_MANDIR=/nix/store/5rdpaqmcj9hrpwdcnprr0zm51659mp08-fokus-1.5.4/share/man -DCMAKE_INSTALL_OLDINCLUDEDIR=/nix/store/5rdpaqmcj9hrpwdcnprr0zm51659mp08-fokus-1.5.4/include -DCMAKE_INSTALL_INCLUDEDIR=/nix/store/5rdpaqmcj9hrpwdcnprr0zm51659mp08-fokus-1.5.4/include -DCMAKE_INSTALL_SBINDIR=/nix/store/5rdpaqmcj9hrpwdcnprr0zm51659mp08-fokus-1.5.4/sbin -DCMAKE_INSTALL_BINDIR=/nix/store/5rdpaqmcj9hrpwdcnprr0zm51659mp08-fokus-1.5.4/bin -DCMAKE_INSTALL_NAME_DIR=/nix/store/5rdpaqmcj9hrpwdcnprr0zm51659mp08-fokus-1.5.4/lib -DCMAKE_POLICY_DEFAULT_CMP0025=NEW -DCMAKE_OSX_SYSROOT= -DCMAKE_FIND_FRAMEWORK=LAST -DCMAKE_STRIP=/nix/store/4g5fidyk19akng9n91cql60ylrjq93s6-gcc-wrapper-10.3.0/bin/strip -DCMAKE_RANLIB=/nix/store/ffcrrgb6k5h7crr93dj90bi9fy1jvj16-binutils-2.35.1/bin/ranlib -DCMAKE_AR=/nix/store/ffcrrgb6k5h7crr93dj90bi9fy1jvj16-binutils-2.35.1/bin/ar -DCMAKE_C_COMPILER=gcc -DCMAKE_CXX_COMPILER=g++ -DCMAKE_INSTALL_PREFIX=/nix/store/5rdpaqmcj9hrpwdcnprr0zm51659mp08-fokus-1.5.4 -DKDE_INSTALL_EXECROOTDIR=/nix/store/5rdpaqmcj9hrpwdcnprr0zm51659mp08-fokus-1.5.4 -DKDE_INSTALL_BINDIR=/nix/store/5rdpaqmcj9hrpwdcnprr0zm51659mp08-fokus-1.5.4/bin -DKDE_INSTALL_SBINDIR=/nix/store/5rdpaqmcj9hrpwdcnprr0zm51659mp08-fokus-1.5.4/sbin -DKDE_INSTALL_LIBDIR=/nix/store/5rdpaqmcj9hrpwdcnprr0zm51659mp08-fokus-1.5.4/lib -DKDE_INSTALL_LIBEXECDIR=/nix/store/5rdpaqmcj9hrpwdcnprr0zm51659mp08-fokus-1.5.4/libexec -DKDE_INSTALL_CMAKEPACKAGEDIR=/nix/store/5rdpaqmcj9hrpwdcnprr0zm51659mp08-fokus-1.5.4/lib/cmake -DKDE_INSTALL_INCLUDEDIR=/nix/store/5rdpaqmcj9hrpwdcnprr0zm51659mp08-fokus-1.5.4/include -DKDE_INSTALL_LOCALSTATEDIR=/var -DKDE_INSTALL_DATAROOTDIR=/nix/store/5rdpaqmcj9hrpwdcnprr0zm51659mp08-fokus-1.5.4/share -DKDE_INSTALL_DATADIR=/nix/store/5rdpaqmcj9hrpwdcnprr0zm51659mp08-fokus-1.5.4/share -DKDE_INSTALL_DOCBUNDLEDIR=/nix/store/5rdpaqmcj9hrpwdcnprr0zm51659mp08-fokus-1.5.4/share/doc/HTML -DKDE_INSTALL_KCFGDIR=/nix/store/5rdpaqmcj9hrpwdcnprr0zm51659mp08-fokus-1.5.4/share/config.kcfg -DKDE_INSTALL_KCONFUPDATEDIR=/nix/store/5rdpaqmcj9hrpwdcnprr0zm51659mp08-fokus-1.5.4/share/kconf_update -DKDE_INSTALL_KSERVICES5DIR=/nix/store/5rdpaqmcj9hrpwdcnprr0zm51659mp08-fokus-1.5.4/share/kservices5 -DKDE_INSTALL_KSERVICETYPES5DIR=/nix/store/5rdpaqmcj9hrpwdcnprr0zm51659mp08-fokus-1.5.4/share/kservicetypes5 -DKDE_INSTALL_KXMLGUI5DIR=/nix/store/5rdpaqmcj9hrpwdcnprr0zm51659mp08-fokus-1.5.4/share/kxmlgui5 -DKDE_INSTALL_KNOTIFY5RCDIR=/nix/store/5rdpaqmcj9hrpwdcnprr0zm51659mp08-fokus-1.5.4/share/knotifications5 -DKDE_INSTALL_ICONDIR=/nix/store/5rdpaqmcj9hrpwdcnprr0zm51659mp08-fokus-1.5.4/share/icons -DKDE_INSTALL_LOCALEDIR=/nix/store/5rdpaqmcj9hrpwdcnprr0zm51659mp08-fokus-1.5.4/share/locale -DKDE_INSTALL_SOUNDDIR=/nix/store/5rdpaqmcj9hrpwdcnprr0zm51659mp08-fokus-1.5.4/share/sounds -DKDE_INSTALL_TEMPLATEDIR=/nix/store/5rdpaqmcj9hrpwdcnprr0zm51659mp08-fokus-1.5.4/share/templates -DKDE_INSTALL_WALLPAPERDIR=/nix/store/5rdpaqmcj9hrpwdcnprr0zm51659mp08-fokus-1.5.4/share/wallpapers -DKDE_INSTALL_APPDIR=/nix/store/5rdpaqmcj9hrpwdcnprr0zm51659mp08-fokus-1.5.4/share/applications -DKDE_INSTALL_DESKTOPDIR=/nix/store/5rdpaqmcj9hrpwdcnprr0zm51659mp08-fokus-1.5.4/share/desktop-directories -DKDE_INSTALL_MIMEDIR=/nix/store/5rdpaqmcj9hrpwdcnprr0zm51659mp08-fokus-1.5.4/share/mime/packages -DKDE_INSTALL_METAINFODIR=/nix/store/5rdpaqmcj9hrpwdcnprr0zm51659mp08-fokus-1.5.4/share/appdata -DKDE_INSTALL_MANDIR=/nix/store/5rdpaqmcj9hrpwdcnprr0zm51659mp08-fokus-1.5.4/share/man -DKDE_INSTALL_INFODIR=/nix/store/5rdpaqmcj9hrpwdcnprr0zm51659mp08-fokus-1.5.4/share/info -DKDE_INSTALL_DBUSDIR=/nix/store/5rdpaqmcj9hrpwdcnprr0zm51659mp08-fokus-1.5.4/share/dbus-1 -DKDE_INSTALL_DBUSINTERFACEDIR=/nix/store/5rdpaqmcj9hrpwdcnprr0zm51659mp08-fokus-1.5.4/share/dbus-1/interfaces -DKDE_INSTALL_DBUSSERVICEDIR=/nix/store/5rdpaqmcj9hrpwdcnprr0zm51659mp08-fokus-1.5.4/share/dbus-1/services -DKDE_INSTALL_DBUSSYSTEMSERVICEDIR=/nix/store/5rdpaqmcj9hrpwdcnprr0zm51659mp08-fokus-1.5.4/share/dbus-1/system-services -DKDE_INSTALL_SYSCONFDIR=/nix/store/5rdpaqmcj9hrpwdcnprr0zm51659mp08-fokus-1.5.4/etc -DKDE_INSTALL_CONFDIR=/nix/store/5rdpaqmcj9hrpwdcnprr0zm51659mp08-fokus-1.5.4/etc/xdg -DKDE_INSTALL_AUTOSTARTDIR=/nix/store/5rdpaqmcj9hrpwdcnprr0zm51659mp08-fokus-1.5.4/etc/xdg/autostart -DKDE_INSTALL_QTPLUGINDIR=/nix/store/5rdpaqmcj9hrpwdcnprr0zm51659mp08-fokus-1.5.4/lib/qt-5.15.2/plugins -DKDE_INSTALL_PLUGINDIR=/nix/store/5rdpaqmcj9hrpwdcnprr0zm51659mp08-fokus-1.5.4/lib/qt-5.15.2/plugins -DKDE_INSTALL_QMLDIR=/nix/store/5rdpaqmcj9hrpwdcnprr0zm51659mp08-fokus-1.5.4/lib/qt-5.15.2/qml
CMake Error: The source directory "/build" does not appear to contain CMakeLists.txt.
Specify --help for usage, or press the help button on the CMake GUI.
builder for '/nix/store/c21h5667abmj4v0ci4n51ckvkxvc23gk-fokus-1.5.4.drv' failed with exit code 1
cannot build derivation '/nix/store/b9jhnh8bix892wql3qifvgf742lq41v9-system-path.drv': 1 dependencies couldn't be built
cannot build derivation '/nix/store/3n3mwi7vqmnkng6r8kpa9881xdgcd253-nixos-system-looping-21.11pre328987.c935f5e0add.drv': 1 dependencies couldn't be built
error: build of '/nix/store/3n3mwi7vqmnkng6r8kpa9881xdgcd253-nixos-system-looping-21.11pre328987.c935f5e0add.drv' failed
I'm trying to get moshi-kotlin-codegen to run on some Kotlin code via Bazel. After a lot of trial and error, I managed to get the plugin to run, but it's failing due to not having kotlin-reflect on the classpath. This is needed by kotlinpoet, which is used by Moshi, so it should be transitively included, AFAICT. However, even explicitly stating the dependency in the BUILD.bazel file for moshi-kotlin-codegen doesn't make it work, so I can only assume it gets filtered out somewhere.
The WORKSPACE file:
load("#bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
http_archive(
name = "rules_jvm_external",
sha256 = "62133c125bf4109dfd9d2af64830208356ce4ef8b165a6ef15bbff7460b35c3a",
strip_prefix = "rules_jvm_external-3.0",
url = "https://github.com/bazelbuild/rules_jvm_external/archive/3.0.zip",
)
load("#rules_jvm_external//:defs.bzl", "maven_install")
maven_install(
artifacts = [
"com.github.ajalt:clikt:2.6.0",
"org.eclipse.jgit:org.eclipse.jgit:5.7.0.202003090808-r",
"io.github.microutils:kotlin-logging:1.7.8",
"ch.qos.logback:logback-classic:1.2.3",
"com.github.scribejava:scribejava-core:6.9.0",
"com.squareup.moshi:moshi:1.9.2",
"com.squareup.moshi:moshi-kotlin-codegen:1.9.2",
"org.kohsuke:github-api:1.108",
"com.github.ben-manes.caffeine:caffeine:2.8.2",
"javax.xml.bind:jaxb-api:2.3.1",
"org.junit.jupiter:junit-jupiter:5.6.0",
"org.junit.jupiter:junit-jupiter-params:5.6.0",
"com.google.truth:truth:1.0.1",
],
fetch_sources = True,
repositories = [
"https://maven.google.com",
"https://repo1.maven.org/maven2",
"https://jcenter.bintray.com/",
],
strict_visibility = True,
)
rules_kotlin_version = "legacy-1.4.0-rc3"
rules_kotlin_sha = "da0e6e1543fcc79e93d4d93c3333378f3bd5d29e82c1bc2518de0dbe048e6598"
http_archive(
name = "io_bazel_rules_kotlin",
urls = ["https://github.com/bazelbuild/rules_kotlin/releases/download/%s/rules_kotlin_release.tgz" % rules_kotlin_version],
sha256 = rules_kotlin_sha,
)
load("#io_bazel_rules_kotlin//kotlin:kotlin.bzl", "kotlin_repositories", "kt_register_toolchains")
kotlin_repositories()
kt_register_toolchains()
The BUILD.bazel for moshi-kotlin-codegen:
java_plugin(
name = "moshi_kotlin_codegen_plugin",
processor_class = "com.squareup.moshi.kotlin.codegen.JsonClassCodegenProcessor",
deps = [
"#maven//:com_squareup_moshi_moshi_kotlin_codegen",
],
generates_api = True,
visibility = ["//visibility:public"],
)
(I also tried adding a java_library and depending on that, no luck.)
The final BUILD file that tries to include it:
load("#io_bazel_rules_kotlin//kotlin:kotlin.bzl", "kt_jvm_binary")
kt_jvm_binary(
name = "myproject",
srcs = glob([
"**/*.kt",
]),
main_class = "my.project.MainKt",
plugins = [
"//third_party/moshi_kotlin_codegen:moshi_kotlin_codegen_plugin",
],
deps = [
"#maven//:ch_qos_logback_logback_classic",
"#maven//:com_github_ajalt_clikt",
"#maven//:com_github_ben_manes_caffeine_caffeine",
"#maven//:com_github_scribejava_scribejava_core",
"#maven//:com_squareup_moshi_moshi",
"#maven//:io_github_microutils_kotlin_logging",
"#maven//:org_eclipse_jgit_org_eclipse_jgit",
"#maven//:org_kohsuke_github_api",
"#maven//:javax_xml_bind_jaxb_api",
],
)
The exception during the compilation:
Caused by: kotlin.jvm.KotlinReflectionNotSupportedError: Kotlin reflection implementation is not found at runtime. Make sure you have kotlin-reflect.jar in the classpath
at kotlin.jvm.internal.ClassReference.error(ClassReference.kt:79)
at kotlin.jvm.internal.ClassReference.getQualifiedName(ClassReference.kt:15)
at com.squareup.kotlinpoet.ClassNames.get(ClassName.kt:49)
at com.squareup.moshi.kotlinpoet.classinspector.elements.ElementsClassInspector.<clinit>(ElementsClassInspector.kt:493)
at com.squareup.moshi.kotlin.codegen.JsonClassCodegenProcessor.process(JsonClassCodegenProcessor.kt:99)
at org.jetbrains.kotlin.kapt3.base.incremental.IncrementalProcessor.process(incrementalProcessors.kt)
at org.jetbrains.kotlin.kapt3.base.ProcessorWrapper.process(annotationProcessing.kt:147)
at jdk.compiler/com.sun.tools.javac.processing.JavacProcessingEnvironment.callProcessor(JavacProcessingEnvironment.java:980)
... 48 more
Turns out that this was indeed a bug. A fix is https://github.com/bazelbuild/rules_kotlin/pull/354.
I'm trying to use compiled proto models into my kotlin code. Project is managed by bazel. So I reproduce problem with simple "HelloWorld" project.
WORKSPACE
load("#bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
RULES_KOTLIN_VERSION = "9051eb053f9c958440603d557316a6e9fda14687"
http_archive(
name = "io_bazel_rules_kotlin",
sha256 = "c36e71eec84c0e17dd098143a9d93d5720e81b4db32bceaf2daf939252352727",
strip_prefix = "rules_kotlin-%s" % RULES_KOTLIN_VERSION,
url = "https://github.com/bazelbuild/rules_kotlin/archive/%s.tar.gz" % RULES_KOTLIN_VERSION,
)
load("#io_bazel_rules_kotlin//kotlin:kotlin.bzl", "kotlin_repositories", "kt_register_toolchains")
kotlin_repositories()
kt_register_toolchains()
http_archive(
name = "com_google_protobuf",
strip_prefix = "protobuf-master",
urls = ["https://github.com/protocolbuffers/protobuf/archive/master.zip"],
)
load("#com_google_protobuf//:protobuf_deps.bzl", "protobuf_deps")
protobuf_deps()
BUILD
load("#io_bazel_rules_kotlin//kotlin:kotlin.bzl", "kt_jvm_library")
load("#rules_java//java:defs.bzl", "java_binary", "java_lite_proto_library", "java_proto_library")
load("#rules_proto//proto:defs.bzl", "proto_library")
package(default_visibility = ["//visibility:public"])
proto_library(
name = "clicklocation_proto",
srcs = ["ClickLocation.proto"],
)
java_proto_library(
name = "clicklocation_java_lite_proto",
deps = [":clicklocation_proto"],
)
kt_jvm_library(
name = "app_lib",
srcs = ["Main.kt"],
deps = [":clicklocation_java_lite_proto"]
)
java_binary(
name = "myapp",
main_class = "MyApp",
runtime_deps = [":app_lib"],
)
Proto file
syntax = "proto2";
package objectrecognition;
option java_package = "com.kshmax.objectrecognition.proto";
option java_outer_classname = "ClickLocationProtos";
message ClickLocation {
required float x = 1;
required float y = 2;
}
Main.kt
import com.kshmax.objectrecognition.proto.ClickLocationProtos
class MyApp {
companion object {
#JvmStatic
fun main(args: Array<String>) {
val location = ClickLocationProtos.ClickLocation.newBuilder()
location.x = 0.1f
location.y = 0.2f
location.build()
}
}
}
I have done it as described in protocolbuffers/protobuf repository examples .
But I got an error:
error: supertypes of the following classes cannot be resolved. Please
make sure you have the required dependencies in the classpath: class
com.kshmax.objectrecognition.proto.ClickLocationProtos.ClickLocation,
unresolved supertypes: com.google.protobuf.GeneratedMessageV3 class
com.kshmax.objectrecognition.proto.ClickLocationProtos.ClickLocationOrBuilder,
unresolved supertypes: com.google.protobuf.MessageOrBuilder class
com.kshmax.objectrecognition.proto.ClickLocationProtos.ClickLocation.Builder,
unresolved supertypes: com.google.protobuf.GeneratedMessageV3.Builder
What am I doing wrong?
The code that uses protobuf needs to depend on the protobuf library itself.
In theory, this could be exported by the rule, but since it doesn't work, I would add a dep on protobuf directly, similarly to BuildEventServiceTest
deps= [
"#com_google_protobuf//:protobuf_java",
"my_foo_java_proto",
]
or java_lite_proto_library / "#com_google_protobuf//:protobuf_java_lite" where the remote repository was defined in the WORKSPACE as
http_archive(
name = "com_google_protobuf",
patch_args = ["-p1"],
patches = ["#io_bazel//third_party/protobuf:3.11.3.patch"],
patch_cmds = EXPORT_WORKSPACE_IN_BUILD_FILE,
patch_cmds_win = EXPORT_WORKSPACE_IN_BUILD_FILE_WIN,
sha256 = "cf754718b0aa945b00550ed7962ddc167167bd922b842199eeb6505e6f344852",
strip_prefix = "protobuf-3.11.3",
urls = [
"https://mirror.bazel.build/github.com/protocolbuffers/protobuf/archive/v3.11.3.tar.gz",
"https://github.com/protocolbuffers/protobuf/archive/v3.11.3.tar.gz",
],
)
(I'm not sure you need the patch, and there might be a more recent version; look at the example)
I am trying to build the c++ app with glut using bazel. It should work on both macos and linux. Now the problem is that on macos it requires passing "-framework OpenGL", "-framework GLUT" to linker flags, while on linux I should probably do soemthing like
cc_library(
name = "glut",
srcs = glob(["local/lib/libglut*.dylib", "lib/libglut*.so"]),
...
in glut.BUILD.
So the question is
1. How to provide platform-dependent linker options to cc_library rules in general?
2. And in particular how to link to glut in platform-independent way using bazel?
You can do this using the Bazel select() function. Something like this might work:
config_setting(
name = "linux_x86_64",
values = {"cpu": "k8"},
visibility = ["//visibility:public"],
)
config_setting(
name = "darwin_x86_64",
values = {"cpu": "darwin_x86_64"},
visibility = ["//visibility:public"],
)
cc_library(
name = "glut",
srcs = select({
":darwin_x86_64": [],
":linux_x86_64": glob(["local/lib/libglut*.dylib", "lib/libglut*.so"]),
}),
linkopts = select({
":darwin_x86_64": [
"-framework OpenGL",
"-framework GLUT"
],
":linux_x86_64": [],
})
...
)
Dig around in the Bazel github repository, it's got some good real world examples of using select().
I had a similar problem but with picking the right compiler depending on the platform and #zlalanne's solution didn't work for me. After 2 days of frustration, I finally found the following solution:
config_setting (
name = "darwin",
constraint_values = [ "#bazel_tools//platforms:osx" ]
)
config_setting (
name = "windows",
constraint_values = [ "#bazel_tools//platforms:windows" ]
)
I didn't have any need for linux, but adding this to your BUILD file should work:
config_setting (
name = "linux",
constraint_values = [ "#bazel_tools//platforms:linux" ]
)
Use ":darwin", ":windows" and ":linux" in your selects and you should have a solution that works.