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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2006-11-06 03:44:38 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2006-11-06 03:44:38 +0000 |
| commit | 02f37bd8c4bfdd35869007d142267cd9a1f671b9 (patch) | |
| tree | f7209180d0b4555d911291567ebe587c827470cb /configure.in | |
| parent | 74686b6de78d19aed6d9aa33a7bb5dfb06f3e018 (diff) | |
| download | postgresql-02f37bd8c4bfdd35869007d142267cd9a1f671b9.tar.gz | |
Revert to the pre-8.2 method of probing for libm, that is, always
include it if it links properly. It seems too risky to assume that
standard functions like pow() are not special-cased by the compiler.
Per report from Andreas Lange that build fails on Solaris cc compiler
with -fast. Even though we don't consider that a supported option,
I'm worried that similar issues will arise with other compilers.
Diffstat (limited to 'configure.in')
| -rw-r--r-- | configure.in | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/configure.in b/configure.in index 471e9b9ba6..514329473a 100644 --- a/configure.in +++ b/configure.in @@ -1,5 +1,5 @@ dnl Process this file with autoconf to produce a configure script. -dnl $PostgreSQL: pgsql/configure.in,v 1.485 2006/10/30 22:15:04 petere Exp $ +dnl $PostgreSQL: pgsql/configure.in,v 1.486 2006/11/06 03:44:37 tgl Exp $ dnl dnl Developers, please strive to achieve this order: dnl @@ -640,9 +640,14 @@ AC_DEFINE_UNQUOTED(PG_VERSION_NUM, $PG_VERSION_NUM, [PostgreSQL version as a num ## ## Libraries ## +## Most libraries are included only if they demonstrably provide a function +## we need, but libm is an exception: always include it, because there are +## too many compilers that play cute optimization games that will break +## probes for standard functions such as pow(). +## +AC_CHECK_LIB(m, main) AC_SEARCH_LIBS(setproctitle, util) -AC_SEARCH_LIBS(pow, m) AC_SEARCH_LIBS(dlopen, dl) AC_SEARCH_LIBS(socket, [socket wsock32]) AC_SEARCH_LIBS(shl_load, dld) |