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authorgiraffedata <giraffedata@9d0c8265-081b-0410-96cb-a4ca84ce46f8>2017-04-30 22:05:28 +0000
committergiraffedata <giraffedata@9d0c8265-081b-0410-96cb-a4ca84ce46f8>2017-04-30 22:05:28 +0000
commit268fe97b9555aeee769e6bed36b10ccd3c8a10e8 (patch)
tree9f51a12b61659f26857aa70558f1d1b32d7cb2e2 /doc/HISTORY
parente6b5a4e33fac2cbd10969b64afa9d79887dfa754 (diff)
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Upgrade to _XOPEN_SOURCE 500 to get M_PI
git-svn-id: http://svn.code.sf.net/p/netpbm/code/trunk@2971 9d0c8265-081b-0410-96cb-a4ca84ce46f8
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diff --git a/doc/HISTORY b/doc/HISTORY
index 513f6518..82622a16 100644
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+++ b/doc/HISTORY
@@ -42,6 +42,13 @@ not yet  BJH  Release 10.79.00
               exists (so don't require ppmdcfont to exist).  Broken around
               Netpbm 10.35 (2006).
 
+              Build: Define _XOPEN_SOURCE=500 in source files that use M_PI.
+              While C libraries in the past have always provided this with
+              just _XOPEN_SOURCE=null, it appears that M_PI is actually
+              defined by Single Unix Specification 2, aka UNIX98, for which
+              you need _XOPEN_SOURCE=500, and Cygwin has changed to enforce
+              this.
+
               Debian packaging: fix bug: don't try to include Manweb files, as
               it is no longer packaged by 'make package'.