diff options
| author | Andres Freund | 2017-10-11 23:01:52 +0000 |
|---|---|---|
| committer | Andres Freund | 2017-10-11 23:01:52 +0000 |
| commit | 0b974dba2d6b5581ce422ed883209de46f313fb6 (patch) | |
| tree | 06b01bcde101a73e3211b5930ea3e259b4c3c134 /configure.in | |
| parent | 5fa6b0d102eb8ccd15c4963ee9841baec50df45e (diff) | |
Add configure infrastructure to detect support for C99's restrict.
Will be used in later commits improving performance for a few key
routines where information about aliasing allows for significantly
better code generation.
This allows to use the C99 'restrict' keyword without breaking C89, or
for that matter C++, compilers. If not supported it's defined to be
empty.
Author: Andres Freund
Discussion: https://postgr.es/m/20170914063418.sckdzgjfrsbekae4@alap3.anarazel.de
Diffstat (limited to 'configure.in')
| -rw-r--r-- | configure.in | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/configure.in b/configure.in index 4548db0dd3c..ab990d69f4c 100644 --- a/configure.in +++ b/configure.in @@ -1299,6 +1299,7 @@ fi m4_defun([AC_PROG_CC_STDC], []) dnl We don't want that. AC_C_BIGENDIAN AC_C_INLINE +AC_C_RESTRICT PGAC_PRINTF_ARCHETYPE AC_C_FLEXIBLE_ARRAY_MEMBER PGAC_C_SIGNED |