From bbfd7edae5aa5ad5553d3c7e102f2e450d4380d4 Mon Sep 17 00:00:00 2001 From: Andres Freund Date: Wed, 11 Mar 2015 14:19:54 +0100 Subject: Add macros wrapping all usage of gcc's __attribute__. Until now __attribute__() was defined to be empty for all compilers but gcc. That's problematic because it prevents using it in other compilers; which is necessary e.g. for atomics portability. It's also just generally dubious to do so in a header as widely included as c.h. Instead add pg_attribute_format_arg, pg_attribute_printf, pg_attribute_noreturn macros which are implemented in the compilers that understand them. Also add pg_attribute_noreturn and pg_attribute_packed, but don't provide fallbacks, since they can affect functionality. This means that external code that, possibly unwittingly, relied on __attribute__ defined to be empty on !gcc compilers may now run into warnings or errors on those compilers. But there shouldn't be many occurances of that and it's hard to work around... Discussion: 54B58BA3.8040302@ohmu.fi Author: Oskari Saarenmaa, with some minor changes by me. --- src/include/postgres.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'src/include/postgres.h') diff --git a/src/include/postgres.h b/src/include/postgres.h index cbb7f796e1e..ff30e05bfc8 100644 --- a/src/include/postgres.h +++ b/src/include/postgres.h @@ -687,6 +687,6 @@ extern Datum Float8GetDatum(float8 X); */ extern void ExceptionalCondition(const char *conditionName, const char *errorType, - const char *fileName, int lineNumber) __attribute__((noreturn)); + const char *fileName, int lineNumber) pg_attribute_noreturn; #endif /* POSTGRES_H */ -- cgit v1.2.3