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Enable building as a shared library (dll) on Windows with Bazel

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While the google test library is being built as a shared library using Bazel,
so that there is a rule like

cc_test(
     name = "iterator_traits_test",
     linkstatic = 0,
     deps = ["@gtest//:gtest_main"],
     ...
)

in a BUILD file, the following error appears on Windows:

INFO: Found 1 test target...
ERROR: C:/../external/gtest/BUILD.bazel:55:1: output 'external/gtest/gtest.if.lib' was not created
ERROR: C:/../external/gtest/BUILD.bazel:55:1: not all outputs were created or valid
Target //test:iterator_traits_test failed to build

The reason is a missing "win_def_file" attribute of the "gtest" and
"gtest_main" rules in the BUILD.bazel inside the google test library
package.

The "windows_export_all_symbols" feature is added to the rules, this
feature forces Bazel to export all symbols from the google test library
to linker. I believe exporting all symbols from a testing library makes
no problem for the application from a point of view on encapsulation.

Signed-off-by: Pavel Samolysov <samolisov@gmail.com>
This commit is contained in:
Pavel Samolysov 2019-01-14 15:42:36 +03:00
parent 0599a7b841
commit c868da1988
1 changed files with 8 additions and 0 deletions
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8
BUILD.bazel
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@ -104,12 +104,20 @@ cc_library(
],
"//conditions:default": [],
}),
features = select({
":windows": ["windows_export_all_symbols"],
"//conditions:default": [],
})
)
cc_library(
name = "gtest_main",
srcs = ["googlemock/src/gmock_main.cc"],
deps = [":gtest"],
features = select({
":windows": ["windows_export_all_symbols"],
"//conditions:default": [],
})
)
# The following rules build samples of how to use gTest.