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commit ed159672eb3cd650a32b7e5cb4d5ec1fe0e63802
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Author: Florian Weimer <fweimer@redhat.com>
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Date: Fri Apr 24 11:10:24 2015 +0200
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Do not build with -Winline
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-Winline causes architecture- and optimization-dependent build failures
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due to -Werror. -Winline warns about inlining decisions based on
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branch hints, in effect preventing the use of inline functions in
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header files (because they might be called on unlikely branches, leading
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to a decision not to inline).
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The option was apparently added to the glibc build at a time when GCC
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did not support the always_inline attribute. With current GCC versions,
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inlining failure for functions declared always_inline will receive a
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warning under -Wattributes, which is enabled by default, so -Winline
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appears unnecessary.
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diff --git a/Makeconfig b/Makeconfig
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index 6f61e4835c0a7770..b1bf7f24b6154e3d 100644
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--- a/Makeconfig
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+++ b/Makeconfig
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@@ -639,9 +639,9 @@ endif
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# Extra flags to pass to GCC.
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ifeq ($(all-warnings),yes)
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-+gccwarn := -Wall -Wwrite-strings -Winline -Wcast-qual -Wbad-function-cast -Wmissing-noreturn -Wmissing-prototypes -Wmissing-declarations -Wcomment -Wcomments -Wtrigraphs -Wsign-compare -Wfloat-equal -Wmultichar
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++gccwarn := -Wall -Wwrite-strings -Wcast-qual -Wbad-function-cast -Wmissing-noreturn -Wmissing-prototypes -Wmissing-declarations -Wcomment -Wcomments -Wtrigraphs -Wsign-compare -Wfloat-equal -Wmultichar
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else
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-+gccwarn := -Wall -Wwrite-strings -Winline
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++gccwarn := -Wall -Wwrite-strings
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endif
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+gccwarn += -Wundef
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ifeq ($(enable-werror),yes)
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