1 files changed, 14 insertions, 0 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 6131249beb9..f1691252778 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,5 +1,19 @@
 2011-09-06  Paul Eggert  <eggert@cs.ucla.edu>
 
+        isnan: Fix porting problem to Solaris 10 with bundled gcc.
+        Without this fix, the command to link temacs failed due to an
+        undefined symbol __builtin_isnan.  This is because
+        /usr/include/iso/math_c99.h #defines isnan(x) to
+        __builtin_isnan(x), but the bundled gcc, which identifies itself
+        as gcc 3.4.3 (csl-sol210-3_4-branch+sol_rpath), does not have
+        a __builtin_isnan.
+        * floatfns.c (isnan): #undef, and then #define to a clone of
+        what's in data.c.
+        (Fisnan): Always define, since it's always available now.
+        (syms_of_floatfns): Always define isnan at the Lisp level.
+
+2011-09-06  Paul Eggert  <eggert@cs.ucla.edu>
+
         * Makefile.in (gl-stamp): move-if-change now in build-aux (Bug#9169).
 
 2011-09-06  Paul Eggert  <eggert@cs.ucla.edu>