![Fabrice Fontaine](/assets/img/avatar_default.png)
re2 unconditionally uses -pthread and add it to re2.pc Moreover, it fails to buid without threads on: In file included from /home/peko/autobuild/instance-0/output-1/per-package/re2/host/opt/ext-toolchain/arm-buildroot-linux-uclibcgnueabihf/include/c++/8.3.0/arm-buildroot-linux-uclibcgnueabihf/bits/os_defines.h:39, from /home/peko/autobuild/instance-0/output-1/per-package/re2/host/opt/ext-toolchain/arm-buildroot-linux-uclibcgnueabihf/include/c++/8.3.0/arm-buildroot-linux-uclibcgnueabihf/bits/c++config.h:508, from /home/peko/autobuild/instance-0/output-1/per-package/re2/host/opt/ext-toolchain/arm-buildroot-linux-uclibcgnueabihf/include/c++/8.3.0/bits/stl_algobase.h:59, from /home/peko/autobuild/instance-0/output-1/per-package/re2/host/opt/ext-toolchain/arm-buildroot-linux-uclibcgnueabihf/include/c++/8.3.0/memory:62, from /home/peko/autobuild/instance-0/output-1/build/re2-2020-08-01/re2/filtered_re2.h:24, from /home/peko/autobuild/instance-0/output-1/build/re2-2020-08-01/re2/filtered_re2.cc:5: /home/peko/autobuild/instance-0/output-1/per-package/re2/host/arm-buildroot-linux-uclibcgnueabihf/sysroot/usr/include/features.h:218:5: warning: #warning requested reentrant code, but thread support was disabled [-Wcpp] # warning requested reentrant code, but thread support was disabled ^~~~~~~ In file included from /home/peko/autobuild/instance-0/output-1/build/re2-2020-08-01/re2/prog.h:22, from /home/peko/autobuild/instance-0/output-1/build/re2-2020-08-01/re2/bitstate.cc:28: /home/peko/autobuild/instance-0/output-1/build/re2-2020-08-01/re2/re2.h:768:16: error: 'once_flag' in namespace 'std' does not name a type mutable std::once_flag rprog_once_; ^~~~~~~~~ /home/peko/autobuild/instance-0/output-1/build/re2-2020-08-01/re2/re2.h:768:11: note: 'std::once_flag' is defined in header '<mutex>'; did you forget to '#include <mutex>'? /home/peko/autobuild/instance-0/output-1/build/re2-2020-08-01/re2/re2.h:218:1: +#include <mutex> Fixes: - http://autobuild.buildroot.org/results/7d7c6dcac3cb8ea6deb753178e85eb1c5c74c8e3 Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com> Reviewed-by: Michael Nosthoff <buildroot@heine.tech> Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
18 lines
541 B
Plaintext
18 lines
541 B
Plaintext
config BR2_PACKAGE_RE2
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bool "re2"
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depends on BR2_INSTALL_LIBSTDCPP
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depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_8 # needs C++11
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depends on BR2_TOOLCHAIN_HAS_THREADS
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help
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RE2 is a fast, safe, thread-friendly alternative
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to backtracking regular expression engines like
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those used in PCRE, Perl, and Python.
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It is a C++ library.
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https://github.com/google/re2
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comment "re2 needs a toolchain w/ C++, threads, gcc >= 4.8"
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depends on !BR2_INSTALL_LIBSTDCPP || \
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!BR2_TOOLCHAIN_HAS_THREADS || \
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!BR2_TOOLCHAIN_GCC_AT_LEAST_4_8
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