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Tom Lane 9220b00e57 Tighten configure's test for __builtin_constant_p(). ... Commit 9fa6f00b1 assumed that __builtin_constant_p("string literal") is TRUE, if the compiler has that function at all. Buildfarm results show that Sun Studio 12, at least, breaks that assumption. Removing that usage would leave us with no mechanical check for a very fragile coding requirement, so instead teach configure to ignore __builtin_constant_p() if it doesn't behave that way. We could complicate matters by distinguishing three cases (no such function, vs does, vs doesn't work for string literals); but for now, that seems unnecessary because our other existing uses of this function are just fairly minor optimizations of non-returning elog/ereport. We can live without that on the small population of compilers that act this way. Discussion: https://postgr.es/m/22997.1513264066@sss.pgh.pa.us		8 years ago
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Makefile	Install our "missing" script where PGXS builds can find it.	10 years ago
ac_func_accept_argtypes.m4	Remove some configure header-file checks that we weren't really using.	8 years ago
ax_prog_perl_modules.m4	Make configure check for IPC::Run when --enable-tap-tests is specified.	8 years ago
ax_pthread.m4	Update ax_pthread.m4 to an experimental draft version from upstream.	10 years ago
c-compiler.m4	Tighten configure's test for __builtin_constant_p().	8 years ago
c-library.m4	Remove some configure header-file checks that we weren't really using.	8 years ago
config.guess	Update config.guess and config.sub	8 years ago
config.sub	Update config.guess and config.sub	8 years ago
docbook.m4	Convert documentation to DocBook XML	8 years ago
general.m4	Remove useless whitespace at end of lines	15 years ago
install-sh	Fix install-strip on Mac OS X	13 years ago
libtool.m4	Rename AC_PROG_LD* macros to PGAC_PROG_LD*. This avoids clashes with the	21 years ago
missing	Remove cvs keywords from all files.	15 years ago
perl.m4	MSVC: Test whether 32-bit Perl needs -D_USE_32BIT_TIME_T.	8 years ago
pkg.m4	ICU support	8 years ago
prep_buildtree	find -path is not portable, so use grep -v instead.	15 years ago
programs.m4	Further improve consistency of configure's program searching.	8 years ago
python.m4	Further improve consistency of configure's program searching.	8 years ago
tcl.m4	Further improve consistency of configure's program searching.	8 years ago