From: Bruno Haible <bruno@clisp.org>
Date: Wed, 29 Oct 2008 10:47:23 +0000 (+0100)
Subject: Mention Sun WorkShop 6.2 OpenMP bug.
X-Git-Tag: v2.63b~171
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=479ad2b6b20b9b3424635bd974ea45bb4fd54458;p=thirdparty%2Fautoconf.git

Mention Sun WorkShop 6.2 OpenMP bug.

* doc/autoconf.texi (AC_OPENMP): Document portability pitfall.

Signed-off-by: Eric Blake <ebb9@byu.net>
---

diff --git a/ChangeLog b/ChangeLog
index 46f6e8153..b5026a729 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2008-10-29  Bruno Haible  <bruno@clisp.org>
+
+	Mention Sun WorkShop 6.2 OpenMP bug.
+	* doc/autoconf.texi (AC_OPENMP): Document portability pitfall.
+
 2008-10-29  Paolo Bonzini  <bonzini@gnu.org>
 
 	Rewrite handling of diversion and expansion stack.
diff --git a/doc/autoconf.texi b/doc/autoconf.texi
index d315ebbf0..f2a79237b 100644
--- a/doc/autoconf.texi
+++ b/doc/autoconf.texi
@@ -6577,6 +6577,11 @@ the variable @code{OPENMP_FFLAGS} or @code{OPENMP_FCFLAGS},
 respectively.  Similar remarks as for C hold, except that
 @code{CPPFLAGS} is not used for Fortran, and no preprocessor macro
 signals OpenMP support.
+
+For portability, it is best to avoid spaces between @samp{#} and
+@samp{pragma omp}.  That is, write @samp{#pragma omp}, not
+@samp{# pragma omp}.  The Sun WorkShop 6.2 C compiler chokes on the
+latter.
 @end defmac
 
 @node C Compiler