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Tests for `-ffunction-sections -fdata-sections' and sets SECTION_FLAGS accordingly. If there is no warning when using it, take advantage of the smaller executables that can be had with `--gc-sections'. libphobos/ChangeLog: * Makefile.in: Regenerate. * configure: Regenerate. * configure.ac: Call DRUNTIME_SECTION_FLAGS. * libdruntime/Makefile.am: Add SECTION_FLAGS to AM_DFLAGS. * libdruntime/Makefile.in: Regenerate. * m4/druntime.m4 (DRUNTIME_SECTION_FLAGS): New macro. * src/Makefile.am: Add SECTION_FLAGS to AM_DFLAGS. * src/Makefile.in: Regenerate. * testsuite/Makefile.in: Regenerate.
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