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Commit1fa22a4

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Fix unportable usage of __has_attribute
This should fix the breakages caused by697e1d0, which seems to breakthe build for GCC version < 5.It seems, according to the GCC manual that __has_attribute is a "specialoperator" and must be tested without any other conditions in thepreprocessor test.Per recommendation from the GCC manual via Greg NancarrowReported-by: Greg NancarrowDiscussion:https://postgr.es/m/CAJcOf-euSu8fhC10v476o9dqnjqKysVs1_vRms-_fvajpZ3kFw@mail.gmail.com
1 parent913ec71 commit1fa22a4

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‎src/include/c.h

Lines changed: 9 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -195,18 +195,25 @@
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* Marking certain functions as "hot" or "cold" can be useful to assist the
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* compiler in arranging the assembly code in a more efficient way.
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*/
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#if defined(__has_attribute)&&__has_attribute (cold)
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#if defined(__has_attribute)
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#if__has_attribute (cold)
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#definepg_attribute_cold __attribute__((cold))
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#else
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#definepg_attribute_cold
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#endif
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#ifdefined(__has_attribute)&&__has_attribute (hot)
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#if__has_attribute (hot)
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#definepg_attribute_hot __attribute__((hot))
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#else
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#definepg_attribute_hot
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#endif
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#else
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#definepg_attribute_hot
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#definepg_attribute_cold
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#endif
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/*
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* Mark a point as unreachable in a portable fashion. This should preferably
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* be something that the compiler understands, to aid code generation.

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