标签：automake
What steps will reproduce the problem?
1. With automake >=1.14, ./autogen.sh fails
This is due to a change in the way automake sets subdir-objects as the default: See <a href="https://github.com/sugarlabs/automake/blob/master/PLANS/subdir-objects.txt" rel="nofollow">https://github.com/sugarlabs/automake/blob/master/PLANS/subdir-objects.txt</a>
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automake: warnings are treated as errors
third_party/Makefile.am:81: warning: source file ‘$(googletest)/src/gtest.cc‘ is in a subdirectory,
third_party/Makefile.am:81: but option ‘subdir-objects‘ is disabled
automake: warning: possible forward-incompatibility.
automake: At least a source file is in a subdirectory, but the ‘subdir-objects‘
automake: automake option hasn‘t been enabled. For now, the corresponding output
automake: object file(s) will be placed in the top-level directory. However,
automake: this behaviour will change in future Automake versions: they will
automake: unconditionally cause object files to be placed in the same subdirectory
automake: of the corresponding sources.
automake: You are advised to start using ‘subdir-objects‘ option throughout your
automake: project, to avoid future incompatibilities.
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Updating configure.ac to replace AM_INIT_AUTOMAKE(-Wall -Werror) with AM_INIT_AUTOMAKE(-Wall -Werror subdir-objects) resolves the autogen.sh problem, however it leads to a build problem. "Makefile:771: gtest-1.6.0/src/.deps/gtest-death-test.Plo: No such file or directory", etc... Examining the two versions of third_party/Makefile shows that indeed a Makefile change occurs. "include ./$(DEPDIR)/gtest-death-test.Plo" is replaced by "include $(googletest)/src/$(DEPDIR)/gtest-death-test.Plo".
So it would seem that gtest‘s location is no longer acceptable to automake.
automake (>=1.14) error: but option ‘subdir-objects’ is disabled
标签：automake
原文地址：http://31329846.blog.51cto.com/3074923/1845328
